blob: a58563e5bce94b6c3e360a530030bb57d8487243 [file] [log] [blame]
// Copyright 2016 The SwiftShader Authors. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// libGLESv2.cpp: Implements the exported OpenGL ES 2.0 functions.
#include "main.h"
#include "mathutil.h"
#include "utilities.h"
#include "Buffer.h"
#include "Context.h"
#include "Fence.h"
#include "Framebuffer.h"
#include "Program.h"
#include "Renderbuffer.h"
#include "Shader.h"
#include "Texture.h"
#include "Query.h"
#include "TransformFeedback.h"
#include "VertexArray.h"
#include "common/debug.h"
#include "Common/Version.h"
#include <GLES2/gl2.h>
#include <GLES2/gl2ext.h>
#include <GLES3/gl3.h>
#include <algorithm>
#include <limits>
namespace es2
{
static bool validImageSize(GLint level, GLsizei width, GLsizei height)
{
if(level < 0 || level >= IMPLEMENTATION_MAX_TEXTURE_LEVELS || width < 0 || height < 0)
{
return false;
}
return true;
}
}
namespace gl
{
using namespace es2;
void ActiveTexture(GLenum texture)
{
TRACE("(GLenum texture = 0x%X)", texture);
auto context = es2::getContext();
if(context)
{
if(texture < GL_TEXTURE0 || texture > GL_TEXTURE0 + es2::MAX_COMBINED_TEXTURE_IMAGE_UNITS - 1)
{
return error(GL_INVALID_ENUM);
}
context->setActiveSampler(texture - GL_TEXTURE0);
}
}
void AttachShader(GLuint program, GLuint shader)
{
TRACE("(GLuint program = %d, GLuint shader = %d)", program, shader);
auto context = es2::getContext();
if(context)
{
es2::Program *programObject = context->getProgram(program);
es2::Shader *shaderObject = context->getShader(shader);
if(!programObject)
{
if(context->getShader(program))
{
return error(GL_INVALID_OPERATION);
}
else
{
return error(GL_INVALID_VALUE);
}
}
if(!shaderObject)
{
if(context->getProgram(shader))
{
return error(GL_INVALID_OPERATION);
}
else
{
return error(GL_INVALID_VALUE);
}
}
if(!programObject->attachShader(shaderObject))
{
return error(GL_INVALID_OPERATION);
}
}
}
void BeginQueryEXT(GLenum target, GLuint name)
{
TRACE("(GLenum target = 0x%X, GLuint name = %d)", target, name);
switch(target)
{
case GL_ANY_SAMPLES_PASSED_EXT:
case GL_ANY_SAMPLES_PASSED_CONSERVATIVE_EXT:
break;
default:
return error(GL_INVALID_ENUM);
}
if(name == 0)
{
return error(GL_INVALID_OPERATION);
}
auto context = es2::getContext();
if(context)
{
context->beginQuery(target, name);
}
}
void BindAttribLocation(GLuint program, GLuint index, const GLchar* name)
{
TRACE("(GLuint program = %d, GLuint index = %d, const GLchar* name = %s)", program, index, name);
if(index >= es2::MAX_VERTEX_ATTRIBS)
{
return error(GL_INVALID_VALUE);
}
auto context = es2::getContext();
if(context)
{
es2::Program *programObject = context->getProgram(program);
if(!programObject)
{
if(context->getShader(program))
{
return error(GL_INVALID_OPERATION);
}
else
{
return error(GL_INVALID_VALUE);
}
}
if(strncmp(name, "gl_", 3) == 0)
{
return error(GL_INVALID_OPERATION);
}
programObject->bindAttributeLocation(index, name);
}
}
void BindBuffer(GLenum target, GLuint buffer)
{
TRACE("(GLenum target = 0x%X, GLuint buffer = %d)", target, buffer);
auto context = es2::getContext();
if(context)
{
switch(target)
{
case GL_ARRAY_BUFFER:
context->bindArrayBuffer(buffer);
return;
case GL_ELEMENT_ARRAY_BUFFER:
context->bindElementArrayBuffer(buffer);
return;
case GL_COPY_READ_BUFFER:
context->bindCopyReadBuffer(buffer);
return;
case GL_COPY_WRITE_BUFFER:
context->bindCopyWriteBuffer(buffer);
return;
case GL_PIXEL_PACK_BUFFER:
context->bindPixelPackBuffer(buffer);
return;
case GL_PIXEL_UNPACK_BUFFER:
context->bindPixelUnpackBuffer(buffer);
return;
case GL_TRANSFORM_FEEDBACK_BUFFER:
context->bindTransformFeedbackBuffer(buffer);
return;
case GL_UNIFORM_BUFFER:
context->bindGenericUniformBuffer(buffer);
return;
default:
return error(GL_INVALID_ENUM);
}
}
}
void BindFramebuffer(GLenum target, GLuint framebuffer)
{
TRACE("(GLenum target = 0x%X, GLuint framebuffer = %d)", target, framebuffer);
if(target != GL_FRAMEBUFFER && target != GL_DRAW_FRAMEBUFFER && target != GL_READ_FRAMEBUFFER)
{
return error(GL_INVALID_ENUM);
}
auto context = es2::getContext();
if(context)
{
if(target == GL_READ_FRAMEBUFFER || target == GL_FRAMEBUFFER)
{
context->bindReadFramebuffer(framebuffer);
}
if(target == GL_DRAW_FRAMEBUFFER || target == GL_FRAMEBUFFER)
{
context->bindDrawFramebuffer(framebuffer);
}
}
}
void BindRenderbuffer(GLenum target, GLuint renderbuffer)
{
TRACE("(GLenum target = 0x%X, GLuint renderbuffer = %d)", target, renderbuffer);
if(target != GL_RENDERBUFFER)
{
return error(GL_INVALID_ENUM);
}
auto context = es2::getContext();
if(context)
{
// [OpenGL ES 2.0.25] Section 4.4.3 page 110
// [OpenGL ES 3.0.4] Section 4.4.2 page 204
// If renderbuffer is not zero, then the resulting renderbuffer object
// is a new state vector, initialized with a zero-sized memory buffer.
context->bindRenderbuffer(renderbuffer);
}
}
void BindTexture(GLenum target, GLuint texture)
{
TRACE("(GLenum target = 0x%X, GLuint texture = %d)", target, texture);
auto context = es2::getContext();
if(context)
{
es2::Texture *textureObject = context->getTexture(texture);
if(textureObject && textureObject->getTarget() != target && texture != 0)
{
return error(GL_INVALID_OPERATION);
}
switch(target)
{
case GL_TEXTURE_2D:
context->bindTexture(TEXTURE_2D, texture);
break;
case GL_TEXTURE_CUBE_MAP:
context->bindTexture(TEXTURE_CUBE, texture);
break;
case GL_TEXTURE_EXTERNAL_OES:
context->bindTexture(TEXTURE_EXTERNAL, texture);
break;
case GL_TEXTURE_2D_ARRAY:
context->bindTexture(TEXTURE_2D_ARRAY, texture);
break;
case GL_TEXTURE_3D:
context->bindTexture(TEXTURE_3D, texture);
break;
case GL_TEXTURE_RECTANGLE_ARB:
context->bindTexture(TEXTURE_2D_RECT, texture);
break;
default:
return error(GL_INVALID_ENUM);
}
}
}
void BlendColor(GLclampf red, GLclampf green, GLclampf blue, GLclampf alpha)
{
TRACE("(GLclampf red = %f, GLclampf green = %f, GLclampf blue = %f, GLclampf alpha = %f)",
red, green, blue, alpha);
auto context = es2::getContext();
if(context)
{
context->setBlendColor(es2::clamp01(red), es2::clamp01(green), es2::clamp01(blue), es2::clamp01(alpha));
}
}
void BlendEquationSeparate(GLenum modeRGB, GLenum modeAlpha)
{
TRACE("(GLenum modeRGB = 0x%X, GLenum modeAlpha = 0x%X)", modeRGB, modeAlpha);
switch(modeRGB)
{
case GL_FUNC_ADD:
case GL_FUNC_SUBTRACT:
case GL_FUNC_REVERSE_SUBTRACT:
case GL_MIN_EXT:
case GL_MAX_EXT:
break;
default:
return error(GL_INVALID_ENUM);
}
switch(modeAlpha)
{
case GL_FUNC_ADD:
case GL_FUNC_SUBTRACT:
case GL_FUNC_REVERSE_SUBTRACT:
case GL_MIN_EXT:
case GL_MAX_EXT:
break;
default:
return error(GL_INVALID_ENUM);
}
auto context = es2::getContext();
if(context)
{
context->setBlendEquation(modeRGB, modeAlpha);
}
}
void BlendEquation(GLenum mode)
{
BlendEquationSeparate(mode, mode);
}
void BlendFuncSeparate(GLenum srcRGB, GLenum dstRGB, GLenum srcAlpha, GLenum dstAlpha)
{
TRACE("(GLenum srcRGB = 0x%X, GLenum dstRGB = 0x%X, GLenum srcAlpha = 0x%X, GLenum dstAlpha = 0x%X)",
srcRGB, dstRGB, srcAlpha, dstAlpha);
switch(srcRGB)
{
case GL_ZERO:
case GL_ONE:
case GL_SRC_COLOR:
case GL_ONE_MINUS_SRC_COLOR:
case GL_DST_COLOR:
case GL_ONE_MINUS_DST_COLOR:
case GL_SRC_ALPHA:
case GL_ONE_MINUS_SRC_ALPHA:
case GL_DST_ALPHA:
case GL_ONE_MINUS_DST_ALPHA:
case GL_CONSTANT_COLOR:
case GL_ONE_MINUS_CONSTANT_COLOR:
case GL_CONSTANT_ALPHA:
case GL_ONE_MINUS_CONSTANT_ALPHA:
case GL_SRC_ALPHA_SATURATE:
break;
default:
return error(GL_INVALID_ENUM);
}
switch(dstRGB)
{
case GL_ZERO:
case GL_ONE:
case GL_SRC_COLOR:
case GL_ONE_MINUS_SRC_COLOR:
case GL_DST_COLOR:
case GL_ONE_MINUS_DST_COLOR:
case GL_SRC_ALPHA:
case GL_ONE_MINUS_SRC_ALPHA:
case GL_DST_ALPHA:
case GL_ONE_MINUS_DST_ALPHA:
case GL_CONSTANT_COLOR:
case GL_ONE_MINUS_CONSTANT_COLOR:
case GL_CONSTANT_ALPHA:
case GL_ONE_MINUS_CONSTANT_ALPHA:
break;
case GL_SRC_ALPHA_SATURATE:
break;
default:
return error(GL_INVALID_ENUM);
}
switch(srcAlpha)
{
case GL_ZERO:
case GL_ONE:
case GL_SRC_COLOR:
case GL_ONE_MINUS_SRC_COLOR:
case GL_DST_COLOR:
case GL_ONE_MINUS_DST_COLOR:
case GL_SRC_ALPHA:
case GL_ONE_MINUS_SRC_ALPHA:
case GL_DST_ALPHA:
case GL_ONE_MINUS_DST_ALPHA:
case GL_CONSTANT_COLOR:
case GL_ONE_MINUS_CONSTANT_COLOR:
case GL_CONSTANT_ALPHA:
case GL_ONE_MINUS_CONSTANT_ALPHA:
case GL_SRC_ALPHA_SATURATE:
break;
default:
return error(GL_INVALID_ENUM);
}
switch(dstAlpha)
{
case GL_ZERO:
case GL_ONE:
case GL_SRC_COLOR:
case GL_ONE_MINUS_SRC_COLOR:
case GL_DST_COLOR:
case GL_ONE_MINUS_DST_COLOR:
case GL_SRC_ALPHA:
case GL_ONE_MINUS_SRC_ALPHA:
case GL_DST_ALPHA:
case GL_ONE_MINUS_DST_ALPHA:
case GL_CONSTANT_COLOR:
case GL_ONE_MINUS_CONSTANT_COLOR:
case GL_CONSTANT_ALPHA:
case GL_ONE_MINUS_CONSTANT_ALPHA:
break;
case GL_SRC_ALPHA_SATURATE:
break;
default:
return error(GL_INVALID_ENUM);
}
auto context = es2::getContext();
if(context)
{
context->setBlendFactors(srcRGB, dstRGB, srcAlpha, dstAlpha);
}
}
void BlendFunc(GLenum sfactor, GLenum dfactor)
{
BlendFuncSeparate(sfactor, dfactor, sfactor, dfactor);
}
void BufferData(GLenum target, GLsizeiptr size, const GLvoid* data, GLenum usage)
{
size = static_cast<GLint>(size); // Work around issues with some 64-bit applications
TRACE("(GLenum target = 0x%X, GLsizeiptr size = %d, const GLvoid* data = %p, GLenum usage = %d)",
target, size, data, usage);
if(size < 0)
{
return error(GL_INVALID_VALUE);
}
switch(usage)
{
case GL_STREAM_DRAW:
case GL_STATIC_DRAW:
case GL_DYNAMIC_DRAW:
break;
case GL_STREAM_READ:
case GL_STREAM_COPY:
case GL_STATIC_READ:
case GL_STATIC_COPY:
case GL_DYNAMIC_READ:
case GL_DYNAMIC_COPY:
break;
default:
return error(GL_INVALID_ENUM);
}
auto context = es2::getContext();
if(context)
{
es2::Buffer *buffer = nullptr;
if(!context->getBuffer(target, &buffer))
{
return error(GL_INVALID_ENUM);
}
if(!buffer)
{
// A null buffer means that "0" is bound to the requested buffer target
return error(GL_INVALID_OPERATION);
}
buffer->bufferData(data, size, usage);
}
}
void BufferSubData(GLenum target, GLintptr offset, GLsizeiptr size, const GLvoid* data)
{
size = static_cast<GLint>(size); // Work around issues with some 64-bit applications
offset = static_cast<GLint>(offset);
TRACE("(GLenum target = 0x%X, GLintptr offset = %d, GLsizeiptr size = %d, const GLvoid* data = %p)",
target, offset, size, data);
if(size < 0 || offset < 0)
{
return error(GL_INVALID_VALUE);
}
auto context = es2::getContext();
if(context)
{
es2::Buffer *buffer = nullptr;
if(!context->getBuffer(target, &buffer))
{
return error(GL_INVALID_ENUM);
}
if(!buffer)
{
// A null buffer means that "0" is bound to the requested buffer target
return error(GL_INVALID_OPERATION);
}
if(buffer->isMapped())
{
// It is an invalid operation to update an already mapped buffer
return error(GL_INVALID_OPERATION);
}
if((size_t)size + offset > buffer->size())
{
return error(GL_INVALID_VALUE);
}
buffer->bufferSubData(data, size, offset);
}
}
GLenum CheckFramebufferStatus(GLenum target)
{
TRACE("(GLenum target = 0x%X)", target);
if(target != GL_FRAMEBUFFER && target != GL_DRAW_FRAMEBUFFER && target != GL_READ_FRAMEBUFFER)
{
return error(GL_INVALID_ENUM, 0);
}
auto context = es2::getContext();
if(context)
{
es2::Framebuffer *framebuffer = nullptr;
if(target == GL_READ_FRAMEBUFFER)
{
framebuffer = context->getReadFramebuffer();
}
else
{
framebuffer = context->getDrawFramebuffer();
}
if(!framebuffer)
{
return GL_FRAMEBUFFER_UNDEFINED_OES;
}
return framebuffer->completeness();
}
return 0;
}
void Clear(GLbitfield mask)
{
TRACE("(GLbitfield mask = %X)", mask);
if((mask & ~(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT)) != 0)
{
return error(GL_INVALID_VALUE);
}
auto context = es2::getContext();
if(context)
{
context->clear(mask);
}
}
void ClearColor(GLclampf red, GLclampf green, GLclampf blue, GLclampf alpha)
{
TRACE("(GLclampf red = %f, GLclampf green = %f, GLclampf blue = %f, GLclampf alpha = %f)",
red, green, blue, alpha);
auto context = es2::getContext();
if(context)
{
context->setClearColor(red, green, blue, alpha);
}
}
void ClearDepthf(GLclampf depth)
{
TRACE("(GLclampf depth = %f)", depth);
auto context = es2::getContext();
if(context)
{
context->setClearDepth(depth);
}
}
void ClearStencil(GLint s)
{
TRACE("(GLint s = %d)", s);
auto context = es2::getContext();
if(context)
{
context->setClearStencil(s);
}
}
void ColorMask(GLboolean red, GLboolean green, GLboolean blue, GLboolean alpha)
{
TRACE("(GLboolean red = %d, GLboolean green = %d, GLboolean blue = %d, GLboolean alpha = %d)",
red, green, blue, alpha);
auto context = es2::getContext();
if(context)
{
context->setColorMask(red != GL_FALSE, green != GL_FALSE, blue != GL_FALSE, alpha != GL_FALSE);
}
}
void CompileShader(GLuint shader)
{
TRACE("(GLuint shader = %d)", shader);
auto context = es2::getContext();
if(context)
{
es2::Shader *shaderObject = context->getShader(shader);
if(!shaderObject)
{
if(context->getProgram(shader))
{
return error(GL_INVALID_OPERATION);
}
else
{
return error(GL_INVALID_VALUE);
}
}
shaderObject->compile();
}
}
void CompressedTexImage2D(GLenum target, GLint level, GLenum internalformat, GLsizei width, GLsizei height,
GLint border, GLsizei imageSize, const GLvoid* data)
{
TRACE("(GLenum target = 0x%X, GLint level = %d, GLenum internalformat = 0x%X, GLsizei width = %d, "
"GLsizei height = %d, GLint border = %d, GLsizei imageSize = %d, const GLvoid* data = %p)",
target, level, internalformat, width, height, border, imageSize, data);
if(!validImageSize(level, width, height) || border != 0 || imageSize < 0)
{
return error(GL_INVALID_VALUE);
}
if(!IsCompressed(internalformat))
{
return error(GL_INVALID_ENUM);
}
if(border != 0)
{
return error(GL_INVALID_VALUE);
}
auto context = es2::getContext();
if(context)
{
if(level >= es2::IMPLEMENTATION_MAX_TEXTURE_LEVELS)
{
return error(GL_INVALID_VALUE);
}
switch(target)
{
case GL_TEXTURE_2D:
if(width > (es2::IMPLEMENTATION_MAX_TEXTURE_SIZE >> level) ||
height > (es2::IMPLEMENTATION_MAX_TEXTURE_SIZE >> level))
{
return error(GL_INVALID_VALUE);
}
break;
case GL_TEXTURE_CUBE_MAP_POSITIVE_X:
case GL_TEXTURE_CUBE_MAP_NEGATIVE_X:
case GL_TEXTURE_CUBE_MAP_POSITIVE_Y:
case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y:
case GL_TEXTURE_CUBE_MAP_POSITIVE_Z:
case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z:
if(width != height)
{
return error(GL_INVALID_VALUE);
}
if(width > (es2::IMPLEMENTATION_MAX_CUBE_MAP_TEXTURE_SIZE >> level) ||
height > (es2::IMPLEMENTATION_MAX_CUBE_MAP_TEXTURE_SIZE >> level))
{
return error(GL_INVALID_VALUE);
}
break;
case GL_TEXTURE_RECTANGLE_ARB: // Rectangle textures cannot be compressed
default:
return error(GL_INVALID_ENUM);
}
if(imageSize != gl::ComputeCompressedSize(width, height, internalformat))
{
return error(GL_INVALID_VALUE);
}
GLenum validationError = context->getPixels(&data, GL_UNSIGNED_BYTE, imageSize);
if(validationError != GL_NO_ERROR)
{
return error(validationError);
}
if(target == GL_TEXTURE_2D || target == GL_TEXTURE_RECTANGLE_ARB)
{
es2::Texture2D *texture = context->getTexture2D(target);
if(!texture)
{
return error(GL_INVALID_OPERATION);
}
texture->setCompressedImage(level, internalformat, width, height, imageSize, data);
}
else if(es2::IsCubemapTextureTarget(target))
{
es2::TextureCubeMap *texture = context->getTextureCubeMap();
if(!texture)
{
return error(GL_INVALID_OPERATION);
}
texture->setCompressedImage(target, level, internalformat, width, height, imageSize, data);
}
else UNREACHABLE(target);
}
}
void CompressedTexSubImage2D(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height,
GLenum format, GLsizei imageSize, const GLvoid* data)
{
TRACE("(GLenum target = 0x%X, GLint level = %d, GLint xoffset = %d, GLint yoffset = %d, "
"GLsizei width = %d, GLsizei height = %d, GLenum format = 0x%X, "
"GLsizei imageSize = %d, const GLvoid* data = %p)",
target, level, xoffset, yoffset, width, height, format, imageSize, data);
if(!es2::IsTextureTarget(target))
{
return error(GL_INVALID_ENUM);
}
if(level < 0 || level >= es2::IMPLEMENTATION_MAX_TEXTURE_LEVELS)
{
return error(GL_INVALID_VALUE);
}
if(xoffset < 0 || yoffset < 0 || !validImageSize(level, width, height) || imageSize < 0)
{
return error(GL_INVALID_VALUE);
}
if(!IsCompressed(format))
{
return error(GL_INVALID_ENUM);
}
if(imageSize != gl::ComputeCompressedSize(width, height, format))
{
return error(GL_INVALID_VALUE);
}
auto context = es2::getContext();
if(context)
{
if(xoffset % 4 != 0 || yoffset % 4 != 0)
{
// We wait to check the offsets until this point, because the multiple-of-four restriction does not exist unless DXT1 textures are supported
return error(GL_INVALID_OPERATION);
}
GLenum validationError = context->getPixels(&data, GL_UNSIGNED_BYTE, imageSize);
if(validationError != GL_NO_ERROR)
{
return error(validationError);
}
if(target == GL_TEXTURE_2D || target == GL_TEXTURE_RECTANGLE_ARB)
{
es2::Texture2D *texture = context->getTexture2D(target);
GLenum validationError = ValidateSubImageParams(true, false, target, level, xoffset, yoffset, width, height, format, GL_NONE, texture);
if(validationError != GL_NO_ERROR)
{
return error(validationError);
}
texture->subImageCompressed(level, xoffset, yoffset, width, height, format, imageSize, data);
}
else if(es2::IsCubemapTextureTarget(target))
{
es2::TextureCubeMap *texture = context->getTextureCubeMap();
GLenum validationError = ValidateSubImageParams(true, false, target, level, xoffset, yoffset, width, height, format, GL_NONE, texture);
if(validationError != GL_NO_ERROR)
{
return error(validationError);
}
texture->subImageCompressed(target, level, xoffset, yoffset, width, height, format, imageSize, data);
}
else UNREACHABLE(target);
}
}
void CopyTexImage2D(GLenum target, GLint level, GLenum internalformat, GLint x, GLint y, GLsizei width, GLsizei height, GLint border)
{
TRACE("(GLenum target = 0x%X, GLint level = %d, GLenum internalformat = 0x%X, "
"GLint x = %d, GLint y = %d, GLsizei width = %d, GLsizei height = %d, GLint border = %d)",
target, level, internalformat, x, y, width, height, border);
if(!validImageSize(level, width, height))
{
return error(GL_INVALID_VALUE);
}
if(border != 0)
{
return error(GL_INVALID_VALUE);
}
auto context = es2::getContext();
if(context)
{
switch(target)
{
case GL_TEXTURE_RECTANGLE_ARB:
if(level != 0)
{
return error(GL_INVALID_VALUE);
}
// Fall through to GL_TEXTURE_2D case.
case GL_TEXTURE_2D:
if(width > (es2::IMPLEMENTATION_MAX_TEXTURE_SIZE >> level) ||
height > (es2::IMPLEMENTATION_MAX_TEXTURE_SIZE >> level))
{
return error(GL_INVALID_VALUE);
}
break;
case GL_TEXTURE_CUBE_MAP_POSITIVE_X:
case GL_TEXTURE_CUBE_MAP_NEGATIVE_X:
case GL_TEXTURE_CUBE_MAP_POSITIVE_Y:
case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y:
case GL_TEXTURE_CUBE_MAP_POSITIVE_Z:
case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z:
if(width != height)
{
return error(GL_INVALID_VALUE);
}
if(width > (es2::IMPLEMENTATION_MAX_CUBE_MAP_TEXTURE_SIZE >> level) ||
height > (es2::IMPLEMENTATION_MAX_CUBE_MAP_TEXTURE_SIZE >> level))
{
return error(GL_INVALID_VALUE);
}
break;
default:
return error(GL_INVALID_ENUM);
}
es2::Framebuffer *framebuffer = context->getReadFramebuffer();
if(!framebuffer || (framebuffer->completeness() != GL_FRAMEBUFFER_COMPLETE))
{
return error(GL_INVALID_FRAMEBUFFER_OPERATION);
}
es2::Renderbuffer *source = framebuffer->getReadColorbuffer();
if(context->getReadFramebufferName() != 0 && (!source || source->getSamples() > 1))
{
return error(GL_INVALID_OPERATION);
}
GLenum colorbufferFormat = source->getFormat();
// Determine the sized internal format.
if(gl::IsUnsizedInternalFormat(internalformat))
{
if(colorbufferFormat == GL_RGB10_A2)
{
// Not supported with unsized internalformat.
// https://www.khronos.org/members/login/bugzilla/show_bug.cgi?id=9807#c56
return error(GL_INVALID_OPERATION);
}
if(gl::GetBaseInternalFormat(colorbufferFormat) == internalformat)
{
internalformat = colorbufferFormat;
}
else if(GetColorComponentType(colorbufferFormat) == GL_UNSIGNED_NORMALIZED && GetRedSize(colorbufferFormat) <= 8)
{
// TODO: Convert to the smallest format that fits all components.
// e.g. Copying RGBA4 to RGB should result in RGB565, not RGB8.
internalformat = gl::GetSizedInternalFormat(internalformat, GL_UNSIGNED_BYTE);
}
else if(GetColorComponentType(colorbufferFormat) == GL_INT)
{
internalformat = gl::GetSizedInternalFormat(internalformat, GL_INT);
}
else if(GetColorComponentType(colorbufferFormat) == GL_UNSIGNED_INT)
{
internalformat = gl::GetSizedInternalFormat(internalformat, GL_UNSIGNED_INT);
}
else if(GetColorComponentType(colorbufferFormat) == GL_FLOAT && GetRedSize(colorbufferFormat) == 16) // GL_EXT_color_buffer_half_float
{
internalformat = gl::GetSizedInternalFormat(internalformat, GL_HALF_FLOAT_OES);
}
else if(GetColorComponentType(colorbufferFormat) == GL_FLOAT && GetRedSize(colorbufferFormat) == 32) // GL_EXT_color_buffer_float
{
internalformat = gl::GetSizedInternalFormat(internalformat, GL_FLOAT);
}
else
{
UNIMPLEMENTED("internalformat = %x, colorbufferFormat = %X", internalformat, colorbufferFormat);
return error(GL_INVALID_OPERATION);
}
}
if(!ValidateCopyFormats(internalformat, colorbufferFormat))
{
return;
}
if(target == GL_TEXTURE_2D || target == GL_TEXTURE_RECTANGLE_ARB)
{
es2::Texture2D *texture = context->getTexture2D(target);
if(!texture)
{
return error(GL_INVALID_OPERATION);
}
texture->copyImage(level, internalformat, x, y, width, height, source);
}
else if(es2::IsCubemapTextureTarget(target))
{
es2::TextureCubeMap *texture = context->getTextureCubeMap();
if(!texture)
{
return error(GL_INVALID_OPERATION);
}
texture->copyImage(target, level, internalformat, x, y, width, height, source);
}
else UNREACHABLE(target);
}
}
void CopyTexSubImage2D(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint x, GLint y, GLsizei width, GLsizei height)
{
TRACE("(GLenum target = 0x%X, GLint level = %d, GLint xoffset = %d, GLint yoffset = %d, "
"GLint x = %d, GLint y = %d, GLsizei width = %d, GLsizei height = %d)",
target, level, xoffset, yoffset, x, y, width, height);
if(!es2::IsTextureTarget(target))
{
return error(GL_INVALID_ENUM);
}
if(level < 0 || level >= es2::IMPLEMENTATION_MAX_TEXTURE_LEVELS)
{
return error(GL_INVALID_VALUE);
}
if(xoffset < 0 || yoffset < 0 || width < 0 || height < 0)
{
return error(GL_INVALID_VALUE);
}
if(std::numeric_limits<GLsizei>::max() - xoffset < width || std::numeric_limits<GLsizei>::max() - yoffset < height)
{
return error(GL_INVALID_VALUE);
}
auto context = es2::getContext();
if(context)
{
es2::Framebuffer *framebuffer = context->getReadFramebuffer();
if(!framebuffer || (framebuffer->completeness() != GL_FRAMEBUFFER_COMPLETE))
{
return error(GL_INVALID_FRAMEBUFFER_OPERATION);
}
es2::Renderbuffer *source = framebuffer->getReadColorbuffer();
if(context->getReadFramebufferName() != 0 && (!source || source->getSamples() > 1))
{
return error(GL_INVALID_OPERATION);
}
es2::Texture *texture = nullptr;
if(target == GL_TEXTURE_2D || target == GL_TEXTURE_RECTANGLE_ARB)
{
texture = context->getTexture2D(target);
}
else if(es2::IsCubemapTextureTarget(target))
{
texture = context->getTextureCubeMap();
}
else UNREACHABLE(target);
GLenum validationError = ValidateSubImageParams(false, true, target, level, xoffset, yoffset, width, height, GL_NONE, GL_NONE, texture);
if(validationError != GL_NO_ERROR)
{
return error(validationError);
}
texture->copySubImage(target, level, xoffset, yoffset, 0, x, y, width, height, source);
}
}
GLuint CreateProgram(void)
{
TRACE("()");
auto context = es2::getContext();
if(context)
{
return context->createProgram();
}
return 0;
}
GLuint CreateShader(GLenum type)
{
TRACE("(GLenum type = 0x%X)", type);
auto context = es2::getContext();
if(context)
{
switch(type)
{
case GL_FRAGMENT_SHADER:
case GL_VERTEX_SHADER:
return context->createShader(type);
default:
return error(GL_INVALID_ENUM, 0);
}
}
return 0;
}
void CullFace(GLenum mode)
{
TRACE("(GLenum mode = 0x%X)", mode);
switch(mode)
{
case GL_FRONT:
case GL_BACK:
case GL_FRONT_AND_BACK:
{
auto context = es2::getContext();
if(context)
{
context->setCullMode(mode);
}
}
break;
default:
return error(GL_INVALID_ENUM);
}
}
void DeleteBuffers(GLsizei n, const GLuint* buffers)
{
TRACE("(GLsizei n = %d, const GLuint* buffers = %p)", n, buffers);
if(n < 0)
{
return error(GL_INVALID_VALUE);
}
auto context = es2::getContext();
if(context)
{
for(int i = 0; i < n; i++)
{
context->deleteBuffer(buffers[i]);
}
}
}
void DeleteFencesNV(GLsizei n, const GLuint* fences)
{
TRACE("(GLsizei n = %d, const GLuint* fences = %p)", n, fences);
if(n < 0)
{
return error(GL_INVALID_VALUE);
}
auto context = es2::getContext();
if(context)
{
for(int i = 0; i < n; i++)
{
context->deleteFence(fences[i]);
}
}
}
void DeleteFramebuffers(GLsizei n, const GLuint* framebuffers)
{
TRACE("(GLsizei n = %d, const GLuint* framebuffers = %p)", n, framebuffers);
if(n < 0)
{
return error(GL_INVALID_VALUE);
}
auto context = es2::getContext();
if(context)
{
for(int i = 0; i < n; i++)
{
if(framebuffers[i] != 0) // Attempts to delete default framebuffer silently ignored.
{
context->deleteFramebuffer(framebuffers[i]);
}
}
}
}
void DeleteProgram(GLuint program)
{
TRACE("(GLuint program = %d)", program);
if(program == 0)
{
return;
}
auto context = es2::getContext();
if(context)
{
if(!context->getProgram(program))
{
if(context->getShader(program))
{
return error(GL_INVALID_OPERATION);
}
else
{
return error(GL_INVALID_VALUE);
}
}
context->deleteProgram(program);
}
}
void DeleteQueriesEXT(GLsizei n, const GLuint *ids)
{
TRACE("(GLsizei n = %d, const GLuint *ids = %p)", n, ids);
if(n < 0)
{
return error(GL_INVALID_VALUE);
}
auto context = es2::getContext();
if(context)
{
for(int i = 0; i < n; i++)
{
context->deleteQuery(ids[i]);
}
}
}
void DeleteRenderbuffers(GLsizei n, const GLuint* renderbuffers)
{
TRACE("(GLsizei n = %d, const GLuint* renderbuffers = %p)", n, renderbuffers);
if(n < 0)
{
return error(GL_INVALID_VALUE);
}
auto context = es2::getContext();
if(context)
{
for(int i = 0; i < n; i++)
{
context->deleteRenderbuffer(renderbuffers[i]);
}
}
}
void DeleteShader(GLuint shader)
{
TRACE("(GLuint shader = %d)", shader);
if(shader == 0)
{
return;
}
auto context = es2::getContext();
if(context)
{
if(!context->getShader(shader))
{
if(context->getProgram(shader))
{
return error(GL_INVALID_OPERATION);
}
else
{
return error(GL_INVALID_VALUE);
}
}
context->deleteShader(shader);
}
}
void DeleteTextures(GLsizei n, const GLuint* textures)
{
TRACE("(GLsizei n = %d, const GLuint* textures = %p)", n, textures);
if(n < 0)
{
return error(GL_INVALID_VALUE);
}
auto context = es2::getContext();
if(context)
{
for(int i = 0; i < n; i++)
{
if(textures[i] != 0) // Attempts to delete default texture silently ignored.
{
context->deleteTexture(textures[i]);
}
}
}
}
void DepthFunc(GLenum func)
{
TRACE("(GLenum func = 0x%X)", func);
switch(func)
{
case GL_NEVER:
case GL_ALWAYS:
case GL_LESS:
case GL_LEQUAL:
case GL_EQUAL:
case GL_GREATER:
case GL_GEQUAL:
case GL_NOTEQUAL:
break;
default:
return error(GL_INVALID_ENUM);
}
auto context = es2::getContext();
if(context)
{
context->setDepthFunc(func);
}
}
void DepthMask(GLboolean flag)
{
TRACE("(GLboolean flag = %d)", flag);
auto context = es2::getContext();
if(context)
{
context->setDepthMask(flag != GL_FALSE);
}
}
void DepthRangef(GLclampf zNear, GLclampf zFar)
{
TRACE("(GLclampf zNear = %f, GLclampf zFar = %f)", zNear, zFar);
auto context = es2::getContext();
if(context)
{
context->setDepthRange(zNear, zFar);
}
}
void DetachShader(GLuint program, GLuint shader)
{
TRACE("(GLuint program = %d, GLuint shader = %d)", program, shader);
auto context = es2::getContext();
if(context)
{
es2::Program *programObject = context->getProgram(program);
es2::Shader *shaderObject = context->getShader(shader);
if(!programObject)
{
es2::Shader *shaderByProgramHandle;
shaderByProgramHandle = context->getShader(program);
if(!shaderByProgramHandle)
{
return error(GL_INVALID_VALUE);
}
else
{
return error(GL_INVALID_OPERATION);
}
}
if(!shaderObject)
{
es2::Program *programByShaderHandle = context->getProgram(shader);
if(!programByShaderHandle)
{
return error(GL_INVALID_VALUE);
}
else
{
return error(GL_INVALID_OPERATION);
}
}
if(!programObject->detachShader(shaderObject))
{
return error(GL_INVALID_OPERATION);
}
}
}
void Disable(GLenum cap)
{
TRACE("(GLenum cap = 0x%X)", cap);
auto context = es2::getContext();
if(context)
{
switch(cap)
{
case GL_CULL_FACE: context->setCullFaceEnabled(false); break;
case GL_POLYGON_OFFSET_FILL: context->setPolygonOffsetFillEnabled(false); break;
case GL_SAMPLE_ALPHA_TO_COVERAGE: context->setSampleAlphaToCoverageEnabled(false); break;
case GL_SAMPLE_COVERAGE: context->setSampleCoverageEnabled(false); break;
case GL_SCISSOR_TEST: context->setScissorTestEnabled(false); break;
case GL_STENCIL_TEST: context->setStencilTestEnabled(false); break;
case GL_DEPTH_TEST: context->setDepthTestEnabled(false); break;
case GL_BLEND: context->setBlendEnabled(false); break;
case GL_DITHER: context->setDitherEnabled(false); break;
case GL_PRIMITIVE_RESTART_FIXED_INDEX: context->setPrimitiveRestartFixedIndexEnabled(false); break;
case GL_RASTERIZER_DISCARD: context->setRasterizerDiscardEnabled(false); break;
default:
return error(GL_INVALID_ENUM);
}
}
}
void DisableVertexAttribArray(GLuint index)
{
TRACE("(GLuint index = %d)", index);
if(index >= es2::MAX_VERTEX_ATTRIBS)
{
return error(GL_INVALID_VALUE);
}
auto context = es2::getContext();
if(context)
{
context->setVertexAttribArrayEnabled(index, false);
}
}
void DrawArrays(GLenum mode, GLint first, GLsizei count)
{
TRACE("(GLenum mode = 0x%X, GLint first = %d, GLsizei count = %d)", mode, first, count);
switch(mode)
{
case GL_POINTS:
case GL_LINES:
case GL_LINE_LOOP:
case GL_LINE_STRIP:
case GL_TRIANGLES:
case GL_TRIANGLE_FAN:
case GL_TRIANGLE_STRIP:
break;
default:
return error(GL_INVALID_ENUM);
}
if(count < 0 || first < 0)
{
return error(GL_INVALID_VALUE);
}
auto context = es2::getContext();
if(context)
{
es2::TransformFeedback* transformFeedback = context->getTransformFeedback();
if(transformFeedback && transformFeedback->isActive() && (mode != transformFeedback->primitiveMode()))
{
return error(GL_INVALID_OPERATION);
}
context->drawArrays(mode, first, count);
}
}
void DrawElements(GLenum mode, GLsizei count, GLenum type, const GLvoid* indices)
{
TRACE("(GLenum mode = 0x%X, GLsizei count = %d, GLenum type = 0x%X, const GLvoid* indices = %p)",
mode, count, type, indices);
switch(mode)
{
case GL_POINTS:
case GL_LINES:
case GL_LINE_LOOP:
case GL_LINE_STRIP:
case GL_TRIANGLES:
case GL_TRIANGLE_FAN:
case GL_TRIANGLE_STRIP:
break;
default:
return error(GL_INVALID_ENUM);
}
if(count < 0)
{
return error(GL_INVALID_VALUE);
}
auto context = es2::getContext();
if(context)
{
es2::TransformFeedback* transformFeedback = context->getTransformFeedback();
if(transformFeedback && transformFeedback->isActive() && !transformFeedback->isPaused())
{
return error(GL_INVALID_OPERATION);
}
switch(type)
{
case GL_UNSIGNED_BYTE:
case GL_UNSIGNED_SHORT:
case GL_UNSIGNED_INT:
break;
default:
return error(GL_INVALID_ENUM);
}
context->drawElements(mode, 0, MAX_ELEMENT_INDEX, count, type, indices);
}
}
void DrawArraysInstancedEXT(GLenum mode, GLint first, GLsizei count, GLsizei instanceCount)
{
TRACE("(GLenum mode = 0x%X, GLint first = %d, GLsizei count = %d, GLsizei instanceCount = %d)",
mode, first, count, instanceCount);
switch(mode)
{
case GL_POINTS:
case GL_LINES:
case GL_LINE_LOOP:
case GL_LINE_STRIP:
case GL_TRIANGLES:
case GL_TRIANGLE_FAN:
case GL_TRIANGLE_STRIP:
break;
default:
return error(GL_INVALID_ENUM);
}
if(count < 0 || instanceCount < 0)
{
return error(GL_INVALID_VALUE);
}
auto context = es2::getContext();
if(context)
{
es2::TransformFeedback* transformFeedback = context->getTransformFeedback();
if(transformFeedback && transformFeedback->isActive() && (mode != transformFeedback->primitiveMode()))
{
return error(GL_INVALID_OPERATION);
}
context->drawArrays(mode, first, count, instanceCount);
}
}
void DrawElementsInstancedEXT(GLenum mode, GLsizei count, GLenum type, const void *indices, GLsizei instanceCount)
{
TRACE("(GLenum mode = 0x%X, GLsizei count = %d, GLenum type = 0x%X, const void *indices = %p, GLsizei instanceCount = %d)",
mode, count, type, indices, instanceCount);
switch(mode)
{
case GL_POINTS:
case GL_LINES:
case GL_LINE_LOOP:
case GL_LINE_STRIP:
case GL_TRIANGLES:
case GL_TRIANGLE_FAN:
case GL_TRIANGLE_STRIP:
break;
default:
return error(GL_INVALID_ENUM);
}
switch(type)
{
case GL_UNSIGNED_BYTE:
case GL_UNSIGNED_SHORT:
case GL_UNSIGNED_INT:
break;
default:
return error(GL_INVALID_ENUM);
}
if(count < 0 || instanceCount < 0)
{
return error(GL_INVALID_VALUE);
}
auto context = es2::getContext();
if(context)
{
es2::TransformFeedback* transformFeedback = context->getTransformFeedback();
if(transformFeedback && transformFeedback->isActive() && !transformFeedback->isPaused())
{
return error(GL_INVALID_OPERATION);
}
context->drawElements(mode, 0, MAX_ELEMENT_INDEX, count, type, indices, instanceCount);
}
}
void VertexAttribDivisorEXT(GLuint index, GLuint divisor)
{
TRACE("(GLuint index = %d, GLuint divisor = %d)", index, divisor);
auto context = es2::getContext();
if(context)
{
if(index >= es2::MAX_VERTEX_ATTRIBS)
{
return error(GL_INVALID_VALUE);
}
context->setVertexAttribDivisor(index, divisor);
}
}
void DrawArraysInstancedANGLE(GLenum mode, GLint first, GLsizei count, GLsizei instanceCount)
{
TRACE("(GLenum mode = 0x%X, GLint first = %d, GLsizei count = %d, GLsizei instanceCount = %d)",
mode, first, count, instanceCount);
switch(mode)
{
case GL_POINTS:
case GL_LINES:
case GL_LINE_LOOP:
case GL_LINE_STRIP:
case GL_TRIANGLES:
case GL_TRIANGLE_FAN:
case GL_TRIANGLE_STRIP:
break;
default:
return error(GL_INVALID_ENUM);
}
if(count < 0 || instanceCount < 0)
{
return error(GL_INVALID_VALUE);
}
auto context = es2::getContext();
if(context)
{
if(!context->hasZeroDivisor())
{
return error(GL_INVALID_OPERATION);
}
es2::TransformFeedback* transformFeedback = context->getTransformFeedback();
if(transformFeedback && transformFeedback->isActive() && (mode != transformFeedback->primitiveMode()))
{
return error(GL_INVALID_OPERATION);
}
context->drawArrays(mode, first, count, instanceCount);
}
}
void DrawElementsInstancedANGLE(GLenum mode, GLsizei count, GLenum type, const void *indices, GLsizei instanceCount)
{
TRACE("(GLenum mode = 0x%X, GLsizei count = %d, GLenum type = 0x%X, const void *indices = %p, GLsizei instanceCount = %d)",
mode, count, type, indices, instanceCount);
switch(mode)
{
case GL_POINTS:
case GL_LINES:
case GL_LINE_LOOP:
case GL_LINE_STRIP:
case GL_TRIANGLES:
case GL_TRIANGLE_FAN:
case GL_TRIANGLE_STRIP:
break;
default:
return error(GL_INVALID_ENUM);
}
switch(type)
{
case GL_UNSIGNED_BYTE:
case GL_UNSIGNED_SHORT:
case GL_UNSIGNED_INT:
break;
default:
return error(GL_INVALID_ENUM);
}
if(count < 0 || instanceCount < 0)
{
return error(GL_INVALID_VALUE);
}
auto context = es2::getContext();
if(context)
{
if(!context->hasZeroDivisor())
{
return error(GL_INVALID_OPERATION);
}
es2::TransformFeedback* transformFeedback = context->getTransformFeedback();
if(transformFeedback && transformFeedback->isActive() && !transformFeedback->isPaused())
{
return error(GL_INVALID_OPERATION);
}
context->drawElements(mode, 0, MAX_ELEMENT_INDEX, count, type, indices, instanceCount);
}
}
void VertexAttribDivisorANGLE(GLuint index, GLuint divisor)
{
TRACE("(GLuint index = %d, GLuint divisor = %d)", index, divisor);
auto context = es2::getContext();
if(context)
{
if(index >= MAX_VERTEX_ATTRIBS)
{
return error(GL_INVALID_VALUE);
}
context->setVertexAttribDivisor(index, divisor);
}
}
void Enable(GLenum cap)
{
TRACE("(GLenum cap = 0x%X)", cap);
auto context = es2::getContext();
if(context)
{
switch(cap)
{
case GL_CULL_FACE: context->setCullFaceEnabled(true); break;
case GL_POLYGON_OFFSET_FILL: context->setPolygonOffsetFillEnabled(true); break;
case GL_SAMPLE_ALPHA_TO_COVERAGE: context->setSampleAlphaToCoverageEnabled(true); break;
case GL_SAMPLE_COVERAGE: context->setSampleCoverageEnabled(true); break;
case GL_SCISSOR_TEST: context->setScissorTestEnabled(true); break;
case GL_STENCIL_TEST: context->setStencilTestEnabled(true); break;
case GL_DEPTH_TEST: context->setDepthTestEnabled(true); break;
case GL_BLEND: context->setBlendEnabled(true); break;
case GL_DITHER: context->setDitherEnabled(true); break;
case GL_PRIMITIVE_RESTART_FIXED_INDEX: context->setPrimitiveRestartFixedIndexEnabled(true); break;
case GL_RASTERIZER_DISCARD: context->setRasterizerDiscardEnabled(true); break;
default:
return error(GL_INVALID_ENUM);
}
}
}
void EnableVertexAttribArray(GLuint index)
{
TRACE("(GLuint index = %d)", index);
if(index >= es2::MAX_VERTEX_ATTRIBS)
{
return error(GL_INVALID_VALUE);
}
auto context = es2::getContext();
if(context)
{
context->setVertexAttribArrayEnabled(index, true);
}
}
void EndQueryEXT(GLenum target)
{
TRACE("GLenum target = 0x%X)", target);
switch(target)
{
case GL_ANY_SAMPLES_PASSED_EXT:
case GL_ANY_SAMPLES_PASSED_CONSERVATIVE_EXT:
break;
default:
return error(GL_INVALID_ENUM);
}
auto context = es2::getContext();
if(context)
{
context->endQuery(target);
}
}
void FinishFenceNV(GLuint fence)
{
TRACE("(GLuint fence = %d)", fence);
auto context = es2::getContext();
if(context)
{
es2::Fence *fenceObject = context->getFence(fence);
if(!fenceObject)
{
return error(GL_INVALID_OPERATION);
}
fenceObject->finishFence();
}
}
void Finish(void)
{
TRACE("()");
auto context = es2::getContext();
if(context)
{
context->finish();
}
}
void Flush(void)
{
TRACE("()");
auto context = es2::getContext();
if(context)
{
context->flush();
}
}
void FramebufferRenderbuffer(GLenum target, GLenum attachment, GLenum renderbuffertarget, GLuint renderbuffer)
{
TRACE("(GLenum target = 0x%X, GLenum attachment = 0x%X, GLenum renderbuffertarget = 0x%X, "
"GLuint renderbuffer = %d)", target, attachment, renderbuffertarget, renderbuffer);
if((target != GL_FRAMEBUFFER && target != GL_DRAW_FRAMEBUFFER && target != GL_READ_FRAMEBUFFER) ||
(renderbuffertarget != GL_RENDERBUFFER && renderbuffer != 0))
{
return error(GL_INVALID_ENUM);
}
auto context = es2::getContext();
if(context)
{
es2::Framebuffer *framebuffer = nullptr;
GLuint framebufferName = 0;
if(target == GL_READ_FRAMEBUFFER)
{
framebuffer = context->getReadFramebuffer();
framebufferName = context->getReadFramebufferName();
}
else
{
framebuffer = context->getDrawFramebuffer();
framebufferName = context->getDrawFramebufferName();
}
if(!framebuffer || framebufferName == 0)
{
return error(GL_INVALID_OPERATION);
}
// [OpenGL ES 2.0.25] Section 4.4.3 page 112
// [OpenGL ES 3.0.2] Section 4.4.2 page 201
// 'renderbuffer' must be either zero or the name of an existing renderbuffer object of
// type 'renderbuffertarget', otherwise an INVALID_OPERATION error is generated.
if(renderbuffer != 0)
{
if(!context->getRenderbuffer(renderbuffer))
{
return error(GL_INVALID_OPERATION);
}
}
switch(attachment)
{
case GL_DEPTH_ATTACHMENT:
framebuffer->setDepthbuffer(GL_RENDERBUFFER, renderbuffer);
break;
case GL_STENCIL_ATTACHMENT:
framebuffer->setStencilbuffer(GL_RENDERBUFFER, renderbuffer);
break;
case GL_DEPTH_STENCIL_ATTACHMENT:
framebuffer->setDepthbuffer(GL_RENDERBUFFER, renderbuffer);
framebuffer->setStencilbuffer(GL_RENDERBUFFER, renderbuffer);
break;
default:
if(attachment < GL_COLOR_ATTACHMENT0 || attachment > GL_COLOR_ATTACHMENT31)
{
return error(GL_INVALID_ENUM);
}
if((attachment - GL_COLOR_ATTACHMENT0) >= MAX_COLOR_ATTACHMENTS)
{
return error(GL_INVALID_OPERATION);
}
framebuffer->setColorbuffer(GL_RENDERBUFFER, renderbuffer, attachment - GL_COLOR_ATTACHMENT0);
break;
}
}
}
void FramebufferTexture2D(GLenum target, GLenum attachment, GLenum textarget, GLuint texture, GLint level)
{
TRACE("(GLenum target = 0x%X, GLenum attachment = 0x%X, GLenum textarget = 0x%X, "
"GLuint texture = %d, GLint level = %d)", target, attachment, textarget, texture, level);
if(target != GL_FRAMEBUFFER && target != GL_DRAW_FRAMEBUFFER && target != GL_READ_FRAMEBUFFER)
{
return error(GL_INVALID_ENUM);
}
auto context = es2::getContext();
if(context)
{
if(texture == 0)
{
textarget = GL_NONE;
}
else
{
es2::Texture *tex = context->getTexture(texture);
if(!tex)
{
return error(GL_INVALID_OPERATION);
}
switch(textarget)
{
case GL_TEXTURE_2D:
if(tex->getTarget() != GL_TEXTURE_2D)
{
return error(GL_INVALID_OPERATION);
}
break;
case GL_TEXTURE_RECTANGLE_ARB:
if(tex->getTarget() != GL_TEXTURE_RECTANGLE_ARB)
{
return error(GL_INVALID_OPERATION);
}
break;
case GL_TEXTURE_CUBE_MAP_POSITIVE_X:
case GL_TEXTURE_CUBE_MAP_NEGATIVE_X:
case GL_TEXTURE_CUBE_MAP_POSITIVE_Y:
case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y:
case GL_TEXTURE_CUBE_MAP_POSITIVE_Z:
case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z:
if(tex->getTarget() != GL_TEXTURE_CUBE_MAP)
{
return error(GL_INVALID_OPERATION);
}
break;
default:
return error(GL_INVALID_ENUM);
}
if((textarget == GL_TEXTURE_RECTANGLE_ARB) && (level != 0))
{
return error(GL_INVALID_VALUE);
}
if((level < 0) || (level >= es2::IMPLEMENTATION_MAX_TEXTURE_LEVELS))
{
return error(GL_INVALID_VALUE);
}
if(tex->isCompressed(textarget, level))
{
return error(GL_INVALID_OPERATION);
}
}
es2::Framebuffer *framebuffer = nullptr;
GLuint framebufferName = 0;
if(target == GL_READ_FRAMEBUFFER)
{
framebuffer = context->getReadFramebuffer();
framebufferName = context->getReadFramebufferName();
}
else
{
framebuffer = context->getDrawFramebuffer();
framebufferName = context->getDrawFramebufferName();
}
if(framebufferName == 0 || !framebuffer)
{
return error(GL_INVALID_OPERATION);
}
switch(attachment)
{
case GL_DEPTH_ATTACHMENT: framebuffer->setDepthbuffer(textarget, texture, level); break;
case GL_STENCIL_ATTACHMENT: framebuffer->setStencilbuffer(textarget, texture, level); break;
case GL_DEPTH_STENCIL_ATTACHMENT:
framebuffer->setDepthbuffer(textarget, texture, level);
framebuffer->setStencilbuffer(textarget, texture, level);
break;
default:
if(attachment < GL_COLOR_ATTACHMENT0 || attachment > GL_COLOR_ATTACHMENT31)
{
return error(GL_INVALID_ENUM);
}
if((attachment - GL_COLOR_ATTACHMENT0) >= MAX_COLOR_ATTACHMENTS)
{
return error(GL_INVALID_OPERATION);
}
framebuffer->setColorbuffer(textarget, texture, attachment - GL_COLOR_ATTACHMENT0, level);
break;
}
}
}
void FrontFace(GLenum mode)
{
TRACE("(GLenum mode = 0x%X)", mode);
switch(mode)
{
case GL_CW:
case GL_CCW:
{
auto context = es2::getContext();
if(context)
{
context->setFrontFace(mode);
}
}
break;
default:
return error(GL_INVALID_ENUM);
}
}
void GenBuffers(GLsizei n, GLuint* buffers)
{
TRACE("(GLsizei n = %d, GLuint* buffers = %p)", n, buffers);
if(n < 0)
{
return error(GL_INVALID_VALUE);
}
auto context = es2::getContext();
if(context)
{
for(int i = 0; i < n; i++)
{
buffers[i] = context->createBuffer();
}
}
}
void GenerateMipmap(GLenum target)
{
TRACE("(GLenum target = 0x%X)", target);
auto context = es2::getContext();
if(context)
{
es2::Texture *texture = nullptr;
switch(target)
{
case GL_TEXTURE_2D:
texture = context->getTexture2D();
break;
case GL_TEXTURE_CUBE_MAP:
{
TextureCubeMap *cube = context->getTextureCubeMap();
texture = cube;
if(!cube->isCubeComplete())
{
return error(GL_INVALID_OPERATION);
}
}
break;
case GL_TEXTURE_2D_ARRAY:
texture = context->getTexture2DArray();
break;
case GL_TEXTURE_3D:
texture = context->getTexture3D();
break;
case GL_TEXTURE_RECTANGLE_ARB:
texture = context->getTexture2DRect();
break;
default:
return error(GL_INVALID_ENUM);
}
if(!IsMipmappable(texture->getFormat(target, texture->getBaseLevel())))
{
return error(GL_INVALID_OPERATION);
}
texture->generateMipmaps();
}
}
void GenFencesNV(GLsizei n, GLuint* fences)
{
TRACE("(GLsizei n = %d, GLuint* fences = %p)", n, fences);
if(n < 0)
{
return error(GL_INVALID_VALUE);
}
auto context = es2::getContext();
if(context)
{
for(int i = 0; i < n; i++)
{
fences[i] = context->createFence();
}
}
}
void GenFramebuffers(GLsizei n, GLuint* framebuffers)
{
TRACE("(GLsizei n = %d, GLuint* framebuffers = %p)", n, framebuffers);
if(n < 0)
{
return error(GL_INVALID_VALUE);
}
auto context = es2::getContext();
if(context)
{
for(int i = 0; i < n; i++)
{
framebuffers[i] = context->createFramebuffer();
}
}
}
void GenQueriesEXT(GLsizei n, GLuint* ids)
{
TRACE("(GLsizei n = %d, GLuint* ids = %p)", n, ids);
if(n < 0)
{
return error(GL_INVALID_VALUE);
}
auto context = es2::getContext();
if(context)
{
for(int i = 0; i < n; i++)
{
ids[i] = context->createQuery();
}
}
}
void GenRenderbuffers(GLsizei n, GLuint* renderbuffers)
{
TRACE("(GLsizei n = %d, GLuint* renderbuffers = %p)", n, renderbuffers);
if(n < 0)
{
return error(GL_INVALID_VALUE);
}
auto context = es2::getContext();
if(context)
{
for(int i = 0; i < n; i++)
{
renderbuffers[i] = context->createRenderbuffer();
}
}
}
void GenTextures(GLsizei n, GLuint* textures)
{
TRACE("(GLsizei n = %d, GLuint* textures = %p)", n, textures);
if(n < 0)
{
return error(GL_INVALID_VALUE);
}
auto context = es2::getContext();
if(context)
{
for(int i = 0; i < n; i++)
{
textures[i] = context->createTexture();
}
}
}
void GetActiveAttrib(GLuint program, GLuint index, GLsizei bufsize, GLsizei *length, GLint *size, GLenum *type, GLchar *name)
{
TRACE("(GLuint program = %d, GLuint index = %d, GLsizei bufsize = %d, GLsizei *length = %p, "
"GLint *size = %p, GLenum *type = %p, GLchar *name = %p)",
program, index, bufsize, length, size, type, name);
if(bufsize < 0)
{
return error(GL_INVALID_VALUE);
}
auto context = es2::getContext();
if(context)
{
es2::Program *programObject = context->getProgram(program);
if(!programObject)
{
if(context->getShader(program))
{
return error(GL_INVALID_OPERATION);
}
else
{
return error(GL_INVALID_VALUE);
}
}
if(index >= programObject->getActiveAttributeCount())
{
return error(GL_INVALID_VALUE);
}
programObject->getActiveAttribute(index, bufsize, length, size, type, name);
}
}
void GetActiveUniform(GLuint program, GLuint index, GLsizei bufsize, GLsizei* length, GLint* size, GLenum* type, GLchar* name)
{
TRACE("(GLuint program = %d, GLuint index = %d, GLsizei bufsize = %d, "
"GLsizei* length = %p, GLint* size = %p, GLenum* type = %p, GLchar* name = %s)",
program, index, bufsize, length, size, type, name);
if(bufsize < 0)
{
return error(GL_INVALID_VALUE);
}
auto context = es2::getContext();
if(context)
{
es2::Program *programObject = context->getProgram(program);
if(!programObject)
{
if(context->getShader(program))
{
return error(GL_INVALID_OPERATION);
}
else
{
return error(GL_INVALID_VALUE);
}
}
if(index >= programObject->getActiveUniformCount())
{
return error(GL_INVALID_VALUE);
}
programObject->getActiveUniform(index, bufsize, length, size, type, name);
}
}
void GetAttachedShaders(GLuint program, GLsizei maxcount, GLsizei* count, GLuint* shaders)
{
TRACE("(GLuint program = %d, GLsizei maxcount = %d, GLsizei* count = %p, GLuint* shaders = %p)",
program, maxcount, count, shaders);
if(maxcount < 0)
{
return error(GL_INVALID_VALUE);
}
auto context = es2::getContext();
if(context)
{
es2::Program *programObject = context->getProgram(program);
if(!programObject)
{
if(context->getShader(program))
{
return error(GL_INVALID_OPERATION);
}
else
{
return error(GL_INVALID_VALUE);
}
}
return programObject->getAttachedShaders(maxcount, count, shaders);
}
}
int GetAttribLocation(GLuint program, const GLchar* name)
{
TRACE("(GLuint program = %d, const GLchar* name = %s)", program, name);
auto context = es2::getContext();
if(context)
{
es2::Program *programObject = context->getProgram(program);
if(!programObject)
{
if(context->getShader(program))
{
return error(GL_INVALID_OPERATION, -1);
}
else
{
return error(GL_INVALID_VALUE, -1);
}
}
if(!programObject->isLinked())
{
return error(GL_INVALID_OPERATION, -1);
}
return programObject->getAttributeLocation(name);
}
return -1;
}
void GetBooleanv(GLenum pname, GLboolean* params)
{
TRACE("(GLenum pname = 0x%X, GLboolean* params = %p)", pname, params);
auto context = es2::getContext();
if(context)
{
if(!(context->getBooleanv(pname, params)))
{
GLenum nativeType;
unsigned int numParams = 0;
if(!context->getQueryParameterInfo(pname, &nativeType, &numParams))
return error(GL_INVALID_ENUM);
if(numParams == 0)
return; // it is known that the pname is valid, but there are no parameters to return
if(nativeType == GL_FLOAT)
{
GLfloat *floatParams = nullptr;
floatParams = new GLfloat[numParams];
context->getFloatv(pname, floatParams);
for(unsigned int i = 0; i < numParams; ++i)
{
if(floatParams[i] == 0.0f)
params[i] = GL_FALSE;
else
params[i] = GL_TRUE;
}
delete [] floatParams;
}
else if(nativeType == GL_INT)
{
GLint *intParams = nullptr;
intParams = new GLint[numParams];
context->getIntegerv(pname, intParams);
for(unsigned int i = 0; i < numParams; ++i)
{
if(intParams[i] == 0)
params[i] = GL_FALSE;
else
params[i] = GL_TRUE;
}
delete [] intParams;
}
}
}
}
void GetBufferParameteriv(GLenum target, GLenum pname, GLint* params)
{
TRACE("(GLenum target = 0x%X, GLenum pname = 0x%X, GLint* params = %p)", target, pname, params);
auto context = es2::getContext();
if(context)
{
es2::Buffer *buffer;
if(!context->getBuffer(target, &buffer))
{
return error(GL_INVALID_ENUM);
}
if(!buffer)
{
// A null buffer means that "0" is bound to the requested buffer target
return error(GL_INVALID_OPERATION);
}
switch(pname)
{
case GL_BUFFER_USAGE:
*params = buffer->usage();
break;
case GL_BUFFER_SIZE:
*params = (GLint)buffer->size();
break;
case GL_BUFFER_ACCESS_FLAGS:
*params = buffer->access();
break;
case GL_BUFFER_MAPPED:
*params = buffer->isMapped();
break;
case GL_BUFFER_MAP_LENGTH:
*params = (GLint)buffer->length();
break;
case GL_BUFFER_MAP_OFFSET:
*params = (GLint)buffer->offset();
break;
default:
return error(GL_INVALID_ENUM);
}
}
}
GLenum GetError(void)
{
TRACE("()");
auto context = es2::getContext();
if(context)
{
return context->getError();
}
return GL_NO_ERROR;
}
void GetFenceivNV(GLuint fence, GLenum pname, GLint *params)
{
TRACE("(GLuint fence = %d, GLenum pname = 0x%X, GLint *params = %p)", fence, pname, params);
auto context = es2::getContext();
if(context)
{
es2::Fence *fenceObject = context->getFence(fence);
if(!fenceObject)
{
return error(GL_INVALID_OPERATION);
}
fenceObject->getFenceiv(pname, params);
}
}
void GetFloatv(GLenum pname, GLfloat* params)
{
TRACE("(GLenum pname = 0x%X, GLfloat* params = %p)", pname, params);
auto context = es2::getContext();
if(context)
{
if(!(context->getFloatv(pname, params)))
{
GLenum nativeType;
unsigned int numParams = 0;
if(!context->getQueryParameterInfo(pname, &nativeType, &numParams))
return error(GL_INVALID_ENUM);
if(numParams == 0)
return; // it is known that the pname is valid, but that there are no parameters to return.
if(nativeType == GL_BOOL)
{
GLboolean *boolParams = nullptr;
boolParams = new GLboolean[numParams];
context->getBooleanv(pname, boolParams);
for(unsigned int i = 0; i < numParams; ++i)
{
if(boolParams[i] == GL_FALSE)
params[i] = 0.0f;
else
params[i] = 1.0f;
}
delete [] boolParams;
}
else if(nativeType == GL_INT)
{
GLint *intParams = nullptr;
intParams = new GLint[numParams];
context->getIntegerv(pname, intParams);
for(unsigned int i = 0; i < numParams; ++i)
{
params[i] = (GLfloat)intParams[i];
}
delete [] intParams;
}
}
}
}
void GetFramebufferAttachmentParameteriv(GLenum target, GLenum attachment, GLenum pname, GLint* params)
{
TRACE("(GLenum target = 0x%X, GLenum attachment = 0x%X, GLenum pname = 0x%X, GLint* params = %p)",
target, attachment, pname, params);
auto context = es2::getContext();
if(context)
{
if(target != GL_FRAMEBUFFER && target != GL_DRAW_FRAMEBUFFER && target != GL_READ_FRAMEBUFFER)
{
return error(GL_INVALID_ENUM);
}
GLuint framebufferName = 0;
if(target == GL_READ_FRAMEBUFFER)
{
framebufferName = context->getReadFramebufferName();
}
else
{
framebufferName = context->getDrawFramebufferName();
}
switch(attachment)
{
case GL_BACK:
case GL_DEPTH:
case GL_STENCIL:
if(framebufferName != 0)
{
return error(GL_INVALID_OPERATION);
}
break;
case GL_DEPTH_ATTACHMENT:
case GL_STENCIL_ATTACHMENT:
if(framebufferName == 0)
{
return error(GL_INVALID_OPERATION);
}
break;
case GL_DEPTH_STENCIL_ATTACHMENT:
if(framebufferName == 0)
{
return error(GL_INVALID_OPERATION);
}
break;
default:
if(framebufferName == 0)
{
return error(GL_INVALID_OPERATION);
}
if(attachment < GL_COLOR_ATTACHMENT0 || attachment > GL_COLOR_ATTACHMENT31)
{
return error(GL_INVALID_ENUM);
}
if((attachment - GL_COLOR_ATTACHMENT0) >= MAX_COLOR_ATTACHMENTS)
{
return error(GL_INVALID_OPERATION);
}
break;
}
es2::Framebuffer *framebuffer = context->getFramebuffer(framebufferName);
if(!framebuffer)
{
return error(GL_INVALID_OPERATION);
}
GLenum attachmentType;
GLuint attachmentHandle;
GLint attachmentLayer;
Renderbuffer *renderbuffer = nullptr;
switch(attachment)
{
case GL_BACK:
attachmentType = framebuffer->getColorbufferType(0);
attachmentHandle = framebuffer->getColorbufferName(0);
attachmentLayer = framebuffer->getColorbufferLayer(0);
renderbuffer = framebuffer->getColorbuffer(0);
break;
case GL_DEPTH:
case GL_DEPTH_ATTACHMENT:
attachmentType = framebuffer->getDepthbufferType();
attachmentHandle = framebuffer->getDepthbufferName();
attachmentLayer = framebuffer->getDepthbufferLayer();
renderbuffer = framebuffer->getDepthbuffer();
break;
case GL_STENCIL:
case GL_STENCIL_ATTACHMENT:
attachmentType = framebuffer->getStencilbufferType();
attachmentHandle = framebuffer->getStencilbufferName();
attachmentLayer = framebuffer->getStencilbufferLayer();
renderbuffer = framebuffer->getStencilbuffer();
break;
case GL_DEPTH_STENCIL_ATTACHMENT:
attachmentType = framebuffer->getDepthbufferType();
attachmentHandle = framebuffer->getDepthbufferName();
attachmentLayer = framebuffer->getDepthbufferLayer();
renderbuffer = framebuffer->getDepthbuffer();
if(attachmentHandle != framebuffer->getStencilbufferName())
{
// Different attachments to DEPTH and STENCIL, query fails
return error(GL_INVALID_OPERATION);
}
break;
default:
ASSERT((unsigned int)(attachment - GL_COLOR_ATTACHMENT0) < MAX_COLOR_ATTACHMENTS);
attachmentType = framebuffer->getColorbufferType(attachment - GL_COLOR_ATTACHMENT0);
attachmentHandle = framebuffer->getColorbufferName(attachment - GL_COLOR_ATTACHMENT0);
attachmentLayer = framebuffer->getColorbufferLayer(attachment - GL_COLOR_ATTACHMENT0);
renderbuffer = framebuffer->getColorbuffer(attachment - GL_COLOR_ATTACHMENT0);
break;
}
GLenum attachmentObjectType = GL_NONE; // Type category
if(framebufferName == 0)
{
attachmentObjectType = GL_FRAMEBUFFER_DEFAULT;
}
else if(attachmentType == GL_NONE || Framebuffer::IsRenderbuffer(attachmentType))
{
attachmentObjectType = attachmentType;
}
else if(es2::IsTextureTarget(attachmentType))
{
attachmentObjectType = GL_TEXTURE;
}
else UNREACHABLE(attachmentType);
if(attachmentObjectType != GL_NONE)
{
switch(pname)
{
case GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE:
*params = attachmentObjectType;
break;
case GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME:
if(attachmentObjectType == GL_RENDERBUFFER || attachmentObjectType == GL_TEXTURE)
{
*params = attachmentHandle;
}
else
{
return error(GL_INVALID_ENUM);
}
break;
case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_LEVEL:
if(attachmentObjectType == GL_TEXTURE)
{
*params = renderbuffer->getLevel();
}
else
{
return error(GL_INVALID_ENUM);
}
break;
case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_CUBE_MAP_FACE:
if(attachmentObjectType == GL_TEXTURE)
{
if(es2::IsCubemapTextureTarget(attachmentType))
{
*params = attachmentType;
}
else
{
*params = 0;
}
}
else
{
return error(GL_INVALID_ENUM);
}
break;
case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_LAYER:
*params = attachmentLayer;
break;
case GL_FRAMEBUFFER_ATTACHMENT_RED_SIZE:
*params = renderbuffer->getRedSize();
break;
case GL_FRAMEBUFFER_ATTACHMENT_GREEN_SIZE:
*params = renderbuffer->getGreenSize();
break;
case GL_FRAMEBUFFER_ATTACHMENT_BLUE_SIZE:
*params = renderbuffer->getBlueSize();
break;
case GL_FRAMEBUFFER_ATTACHMENT_ALPHA_SIZE:
*params = renderbuffer->getAlphaSize();
break;
case GL_FRAMEBUFFER_ATTACHMENT_DEPTH_SIZE:
*params = renderbuffer->getDepthSize();
break;
case GL_FRAMEBUFFER_ATTACHMENT_STENCIL_SIZE:
*params = renderbuffer->getStencilSize();
break;
case GL_FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE:
// case GL_FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE_EXT: // GL_EXT_color_buffer_half_float
if(attachment == GL_DEPTH_STENCIL_ATTACHMENT)
{
return error(GL_INVALID_OPERATION);
}
*params = GetComponentType(renderbuffer->getFormat(), attachment);
break;
case GL_FRAMEBUFFER_ATTACHMENT_COLOR_ENCODING:
*params = GetColorEncoding(renderbuffer->getFormat());
break;
default:
return error(GL_INVALID_ENUM);
}
}
else
{
// ES 2.0.25 spec pg 127 states that if the value of FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE
// is NONE, then querying any other pname will generate INVALID_ENUM.
// ES 3.0.2 spec pg 235 states that if the attachment type is none,
// GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME will return zero and be an
// INVALID_OPERATION for all other pnames
switch(pname)
{
case GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE:
*params = GL_NONE;
break;
case GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME:
*params = 0;
break;
default:
return error(GL_INVALID_OPERATION);
}
}
}
}
GLenum GetGraphicsResetStatusEXT(void)
{
TRACE("()");
return GL_NO_ERROR;
}
void GetIntegerv(GLenum pname, GLint* params)
{
TRACE("(GLenum pname = 0x%X, GLint* params = %p)", pname, params);
auto context = es2::getContext();
if(!context)
{
// Not strictly an error, but probably unintended or attempting to rely on non-compliant behavior
ERR("glGetIntegerv() called without current context.");
// This is not spec compliant! When there is no current GL context, functions should
// have no side effects. Google Maps queries these values before creating a context,
// so we need this as a bug-compatible workaround.
switch(pname)
{
case GL_MAX_TEXTURE_SIZE: *params = es2::IMPLEMENTATION_MAX_TEXTURE_SIZE; return;
case GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS: *params = es2::MAX_VERTEX_TEXTURE_IMAGE_UNITS; return;
case GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS: *params = es2::MAX_COMBINED_TEXTURE_IMAGE_UNITS; return;
case GL_STENCIL_BITS: *params = 8; return;
case GL_ALIASED_LINE_WIDTH_RANGE:
params[0] = (GLint)es2::ALIASED_LINE_WIDTH_RANGE_MIN;
params[1] = (GLint)es2::ALIASED_LINE_WIDTH_RANGE_MAX;
return;
}
}
if(context)
{
if(!(context->getIntegerv(pname, params)))
{
GLenum nativeType;
unsigned int numParams = 0;
if(!context->getQueryParameterInfo(pname, &nativeType, &numParams))
return error(GL_INVALID_ENUM);
if(numParams == 0)
return; // it is known that pname is valid, but there are no parameters to return
if(nativeType == GL_BOOL)
{
GLboolean *boolParams = nullptr;
boolParams = new GLboolean[numParams];
context->getBooleanv(pname, boolParams);
for(unsigned int i = 0; i < numParams; ++i)
{
params[i] = (boolParams[i] == GL_FALSE) ? 0 : 1;
}
delete [] boolParams;
}
else if(nativeType == GL_FLOAT)
{
GLfloat *floatParams = nullptr;
floatParams = new GLfloat[numParams];
context->getFloatv(pname, floatParams);
for(unsigned int i = 0; i < numParams; ++i)
{
if(pname == GL_DEPTH_RANGE || pname == GL_COLOR_CLEAR_VALUE || pname == GL_DEPTH_CLEAR_VALUE || pname == GL_BLEND_COLOR)
{
params[i] = convert_float_fixed(floatParams[i]);
}
else
{
params[i] = (GLint)(floatParams[i] > 0.0f ? floor(floatParams[i] + 0.5) : ceil(floatParams[i] - 0.5));
}
}
delete [] floatParams;
}
}
}
}
void GetProgramiv(GLuint program, GLenum pname, GLint* params)
{
TRACE("(GLuint program = %d, GLenum pname = 0x%X, GLint* params = %p)", program, pname, params);
auto context = es2::getContext();
if(context)
{
es2::Program *programObject = context->getProgram(program);
if(!programObject)
{
if(context->getShader(program))
{
return error(GL_INVALID_OPERATION);
}
else
{
return error(GL_INVALID_VALUE);
}
}
switch(pname)
{
case GL_DELETE_STATUS:
*params = programObject->isFlaggedForDeletion();
return;
case GL_LINK_STATUS:
*params = programObject->isLinked();
return;
case GL_VALIDATE_STATUS:
*params = programObject->isValidated();
return;
case GL_INFO_LOG_LENGTH:
*params = (GLint)programObject->getInfoLogLength();
return;
case GL_ATTACHED_SHADERS:
*params = programObject->getAttachedShadersCount();
return;
case GL_ACTIVE_ATTRIBUTES:
*params = (GLint)programObject->getActiveAttributeCount();
return;
case GL_ACTIVE_ATTRIBUTE_MAX_LENGTH:
*params = programObject->getActiveAttributeMaxLength();
return;
case GL_ACTIVE_UNIFORMS:
*params = (GLint)programObject->getActiveUniformCount();
return;
case GL_ACTIVE_UNIFORM_MAX_LENGTH:
*params = programObject->getActiveUniformMaxLength();
return;
case GL_ACTIVE_UNIFORM_BLOCKS:
*params = (GLint)programObject->getActiveUniformBlockCount();
return;
case GL_ACTIVE_UNIFORM_BLOCK_MAX_NAME_LENGTH:
*params = programObject->getActiveUniformBlockMaxLength();
return;
case GL_TRANSFORM_FEEDBACK_BUFFER_MODE:
*params = programObject->getTransformFeedbackBufferMode();
return;
case GL_TRANSFORM_FEEDBACK_VARYINGS:
*params = programObject->getTransformFeedbackVaryingCount();
return;
case GL_TRANSFORM_FEEDBACK_VARYING_MAX_LENGTH:
*params = programObject->getTransformFeedbackVaryingMaxLength();
return;
case GL_PROGRAM_BINARY_RETRIEVABLE_HINT:
*params = programObject->getBinaryRetrievableHint();
return;
case GL_PROGRAM_BINARY_LENGTH:
*params = programObject->getBinaryLength();
return;
default:
return error(GL_INVALID_ENUM);
}
}
}
void GetProgramInfoLog(GLuint program, GLsizei bufsize, GLsizei* length, GLchar* infolog)
{
TRACE("(GLuint program = %d, GLsizei bufsize = %d, GLsizei* length = %p, GLchar* infolog = %p)",
program, bufsize, length, infolog);
if(bufsize < 0)
{
return error(GL_INVALID_VALUE);
}
auto context = es2::getContext();
if(context)
{
es2::Program *programObject = context->getProgram(program);
if(!programObject)
{
if(context->getShader(program))
{
return error(GL_INVALID_OPERATION);
}
else
{
return error(GL_INVALID_VALUE);
}
}
programObject->getInfoLog(bufsize, length, infolog);
}
}
void GetQueryivEXT(GLenum target, GLenum pname, GLint *params)
{
TRACE("GLenum target = 0x%X, GLenum pname = 0x%X, GLint *params = %p)", target, pname, params);
switch(pname)
{
case GL_CURRENT_QUERY_EXT:
break;
default:
return error(GL_INVALID_ENUM);
}
auto context = es2::getContext();
if(context)
{
params[0] = context->getActiveQuery(target);
}
}
void GetQueryObjectuivEXT(GLuint name, GLenum pname, GLuint *params)
{
TRACE("(GLuint name = %d, GLenum pname = 0x%X, GLuint *params = %p)", name, pname, params);
switch(pname)
{
case GL_QUERY_RESULT_EXT:
case GL_QUERY_RESULT_AVAILABLE_EXT:
break;
default:
return error(GL_INVALID_ENUM);
}
auto context = es2::getContext();
if(context)
{
es2::Query *queryObject = context->getQuery(name);
if(!queryObject)
{
return error(GL_INVALID_OPERATION);
}
if(context->getActiveQuery(queryObject->getType()) == name)
{
return error(GL_INVALID_OPERATION);
}
switch(pname)
{
case GL_QUERY_RESULT_EXT:
params[0] = queryObject->getResult();
break;
case GL_QUERY_RESULT_AVAILABLE_EXT:
params[0] = queryObject->isResultAvailable();
break;
default:
ASSERT(false);
}
}
}
void GetRenderbufferParameteriv(GLenum target, GLenum pname, GLint* params)
{
TRACE("(GLenum target = 0x%X, GLenum pname = 0x%X, GLint* params = %p)", target, pname, params);
auto context = es2::getContext();
if(context)
{
if(target != GL_RENDERBUFFER)
{
return error(GL_INVALID_ENUM);
}
if(context->getRenderbufferName() == 0)
{
return error(GL_INVALID_OPERATION);
}
es2::Renderbuffer *renderbuffer = context->getRenderbuffer(context->getRenderbufferName());
switch(pname)
{
case GL_RENDERBUFFER_WIDTH: *params = renderbuffer->getWidth(); break;
case GL_RENDERBUFFER_HEIGHT: *params = renderbuffer->getHeight(); break;
case GL_RENDERBUFFER_INTERNAL_FORMAT:
{
GLint internalformat = renderbuffer->getFormat();
*params = (internalformat == GL_NONE) ? GL_RGBA4 : internalformat;
}
break;
case GL_RENDERBUFFER_RED_SIZE: *params = renderbuffer->getRedSize(); break;
case GL_RENDERBUFFER_GREEN_SIZE: *params = renderbuffer->getGreenSize(); break;
case GL_RENDERBUFFER_BLUE_SIZE: *params = renderbuffer->getBlueSize(); break;
case GL_RENDERBUFFER_ALPHA_SIZE: *params = renderbuffer->getAlphaSize(); break;
case GL_RENDERBUFFER_DEPTH_SIZE: *params = renderbuffer->getDepthSize(); break;
case GL_RENDERBUFFER_STENCIL_SIZE: *params = renderbuffer->getStencilSize(); break;
case GL_RENDERBUFFER_SAMPLES: *params = renderbuffer->getSamples(); break;
default:
return error(GL_INVALID_ENUM);
}
}
}
void GetShaderiv(GLuint shader, GLenum pname, GLint* params)
{
TRACE("(GLuint shader = %d, GLenum pname = %d, GLint* params = %p)", shader, pname, params);
auto context = es2::getContext();
if(context)
{
es2::Shader *shaderObject = context->getShader(shader);
if(!shaderObject)
{
if(context->getProgram(shader))
{
return error(GL_INVALID_OPERATION);
}
else
{
return error(GL_INVALID_VALUE);
}
}
switch(pname)
{
case GL_SHADER_TYPE:
*params = shaderObject->getType();
return;
case GL_DELETE_STATUS:
*params = shaderObject->isFlaggedForDeletion();
return;
case GL_COMPILE_STATUS:
*params = shaderObject->isCompiled() ? GL_TRUE : GL_FALSE;
return;
case GL_INFO_LOG_LENGTH:
*params = (GLint)shaderObject->getInfoLogLength();
return;
case GL_SHADER_SOURCE_LENGTH:
*params = (GLint)shaderObject->getSourceLength();
return;
default:
return error(GL_INVALID_ENUM);
}
}
}
void GetShaderInfoLog(GLuint shader, GLsizei bufsize, GLsizei* length, GLchar* infolog)
{
TRACE("(GLuint shader = %d, GLsizei bufsize = %d, GLsizei* length = %p, GLchar* infolog = %p)",
shader, bufsize, length, infolog);
if(bufsize < 0)
{
return error(GL_INVALID_VALUE);
}
auto context = es2::getContext();
if(context)
{
es2::Shader *shaderObject = context->getShader(shader);
if(!shaderObject)
{
if(context->getProgram(shader))
{
return error(GL_INVALID_OPERATION);
}
else
{
return error(GL_INVALID_VALUE);
}
}
shaderObject->getInfoLog(bufsize, length, infolog);
}
}
void GetShaderPrecisionFormat(GLenum shadertype, GLenum precisiontype, GLint* range, GLint* precision)
{
TRACE("(GLenum shadertype = 0x%X, GLenum precisiontype = 0x%X, GLint* range = %p, GLint* precision = %p)",
shadertype, precisiontype, range, precision);
switch(shadertype)
{
case GL_VERTEX_SHADER:
case GL_FRAGMENT_SHADER:
break;
default:
return error(GL_INVALID_ENUM);
}
switch(precisiontype)
{
case GL_LOW_FLOAT:
case GL_MEDIUM_FLOAT:
case GL_HIGH_FLOAT:
// IEEE 754 single-precision
range[0] = 127;
range[1] = 127;
*precision = 23;
break;
case GL_LOW_INT:
case GL_MEDIUM_INT:
case GL_HIGH_INT:
// Full integer precision is supported
range[0] = 31;
range[1] = 30;
*precision = 0;
break;
default:
return error(GL_INVALID_ENUM);
}
}
void GetShaderSource(GLuint shader, GLsizei bufsize, GLsizei* length, GLchar* source)
{
TRACE("(GLuint shader = %d, GLsizei bufsize = %d, GLsizei* length = %p, GLchar* source = %p)",
shader, bufsize, length, source);
if(bufsize < 0)
{
return error(GL_INVALID_VALUE);
}
auto context = es2::getContext();
if(context)
{
es2::Shader *shaderObject = context->getShader(shader);
if(!shaderObject)
{
if(context->getProgram(shader))
{
return error(GL_INVALID_OPERATION);
}
else
{
return error(GL_INVALID_VALUE);
}
}
shaderObject->getSource(bufsize, length, source);
}
}
const GLubyte* GetString(GLenum name)
{
TRACE("(GLenum name = 0x%X)", name);
switch(name)
{
case GL_VENDOR:
return (GLubyte*)"Google Inc.";
case GL_RENDERER:
return (GLubyte*)"Google SwiftShader";
case GL_VERSION:
return (GLubyte*)"OpenGL ES 3.0 SwiftShader " VERSION_STRING;
case GL_SHADING_LANGUAGE_VERSION:
return (GLubyte*)"OpenGL ES GLSL ES 3.00 SwiftShader " VERSION_STRING;
case GL_EXTENSIONS:
{
auto context = es2::getContext();
return context ? context->getExtensions(GL_INVALID_INDEX) : (GLubyte*)nullptr;
}
default:
return error(GL_INVALID_ENUM, (GLubyte*)nullptr);
}
}
void GetTexParameterfv(GLenum target, GLenum pname, GLfloat* params)
{
TRACE("(GLenum target = 0x%X, GLenum pname = 0x%X, GLfloat* params = %p)", target, pname, params);
auto context = es2::getContext();
if(context)
{
es2::Texture *texture;
switch(target)
{
case GL_TEXTURE_2D: texture = context->getTexture2D(); break;
case GL_TEXTURE_2D_ARRAY: texture = context->getTexture2DArray(); break;
case GL_TEXTURE_3D: texture = context->getTexture3D(); break;
case GL_TEXTURE_CUBE_MAP: texture = context->getTextureCubeMap(); break;
case GL_TEXTURE_EXTERNAL_OES: texture = context->getTextureExternal(); break;
case GL_TEXTURE_RECTANGLE_ARB: texture = context->getTexture2DRect(); break;
default:
return error(GL_INVALID_ENUM);
}
switch(pname)
{
case GL_TEXTURE_MAG_FILTER:
*params = (GLfloat)texture->getMagFilter();
break;
case GL_TEXTURE_MIN_FILTER:
*params = (GLfloat)texture->getMinFilter();
break;
case GL_TEXTURE_WRAP_S:
*params = (GLfloat)texture->getWrapS();
break;
case GL_TEXTURE_WRAP_T:
*params = (GLfloat)texture->getWrapT();
break;
case GL_TEXTURE_WRAP_R_OES:
*params = (GLfloat)texture->getWrapR();
break;
case GL_TEXTURE_MAX_ANISOTROPY_EXT:
*params = texture->getMaxAnisotropy();
break;
case GL_REQUIRED_TEXTURE_IMAGE_UNITS_OES:
*params = (GLfloat)1;
break;
case GL_TEXTURE_BASE_LEVEL:
*params = (GLfloat)texture->getBaseLevel();
break;
case GL_TEXTURE_COMPARE_FUNC:
*params = (GLfloat)texture->getCompareFunc();
break;
case GL_TEXTURE_COMPARE_MODE:
*params = (GLfloat)texture->getCompareMode();
break;
case GL_TEXTURE_IMMUTABLE_FORMAT:
*params = (GLfloat)texture->getImmutableFormat();
break;
case GL_TEXTURE_IMMUTABLE_LEVELS:
*params = (GLfloat)texture->getImmutableLevels();
break;
case GL_TEXTURE_MAX_LEVEL:
*params = (GLfloat)texture->getMaxLevel();
break;
case GL_TEXTURE_MAX_LOD:
*params = texture->getMaxLOD();
break;
case GL_TEXTURE_MIN_LOD:
*params = texture->getMinLOD();
break;
case GL_TEXTURE_SWIZZLE_R:
*params = (GLfloat)texture->getSwizzleR();
break;
case GL_TEXTURE_SWIZZLE_G:
*params = (GLfloat)texture->getSwizzleG();
break;
case GL_TEXTURE_SWIZZLE_B:
*params = (GLfloat)texture->getSwizzleB();
break;
case GL_TEXTURE_SWIZZLE_A:
*params = (GLfloat)texture->getSwizzleA();
break;
default:
return error(GL_INVALID_ENUM);
}
}
}
void GetTexParameteriv(GLenum target, GLenum pname, GLint* params)
{
TRACE("(GLenum target = 0x%X, GLenum pname = 0x%X, GLint* params = %p)", target, pname, params);
auto context = es2::getContext();
if(context)
{
es2::Texture *texture;
switch(target)
{
case GL_TEXTURE_2D: texture = context->getTexture2D(); break;
case GL_TEXTURE_2D_ARRAY: texture = context->getTexture2DArray(); break;
case GL_TEXTURE_3D: texture = context->getTexture3D(); break;
case GL_TEXTURE_CUBE_MAP: texture = context->getTextureCubeMap(); break;
case GL_TEXTURE_EXTERNAL_OES: texture = context->getTextureExternal(); break;
case GL_TEXTURE_RECTANGLE_ARB: texture = context->getTexture2DRect(); break;
default:
return error(GL_INVALID_ENUM);
}
switch(pname)
{
case GL_TEXTURE_MAG_FILTER:
*params = texture->getMagFilter();
break;
case GL_TEXTURE_MIN_FILTER:
*params = texture->getMinFilter();
break;
case GL_TEXTURE_WRAP_S:
*params = texture->getWrapS();
break;
case GL_TEXTURE_WRAP_T:
*params = texture->getWrapT();
break;
case GL_TEXTURE_WRAP_R_OES:
*params = texture->getWrapR();
break;
case GL_TEXTURE_MAX_ANISOTROPY_EXT:
*params = (GLint)texture->getMaxAnisotropy();
break;
case GL_REQUIRED_TEXTURE_IMAGE_UNITS_OES:
*params = 1;
break;
case GL_TEXTURE_BASE_LEVEL:
*params = texture->getBaseLevel();
break;
case GL_TEXTURE_COMPARE_FUNC:
*params = (GLint)texture->getCompareFunc();
break;
case GL_TEXTURE_COMPARE_MODE:
*params = (GLint)texture->getCompareMode();
break;
case GL_TEXTURE_IMMUTABLE_FORMAT:
*params = (GLint)texture->getImmutableFormat();
break;
case GL_TEXTURE_IMMUTABLE_LEVELS:
*params = (GLint)texture->getImmutableLevels();
break;
case GL_TEXTURE_MAX_LEVEL:
*params = texture->getMaxLevel();
break;
case GL_TEXTURE_MAX_LOD:
*params = (GLint)roundf(texture->getMaxLOD());
break;
case GL_TEXTURE_MIN_LOD:
*params = (GLint)roundf(texture->getMinLOD());
break;
case GL_TEXTURE_SWIZZLE_R:
*params = (GLint)texture->getSwizzleR();
break;
case GL_TEXTURE_SWIZZLE_G:
*params = (GLint)texture->getSwizzleG();
break;
case GL_TEXTURE_SWIZZLE_B:
*params = (GLint)texture->getSwizzleB();
break;
case GL_TEXTURE_SWIZZLE_A:
*params = (GLint)texture->getSwizzleA();
break;
default:
return error(GL_INVALID_ENUM);
}
}
}
void GetnUniformfvEXT(GLuint program, GLint location, GLsizei bufSize, GLfloat* params)
{
TRACE("(GLuint program = %d, GLint location = %d, GLsizei bufSize = %d, GLfloat* params = %p)",
program, location, bufSize, params);
if(bufSize < 0)
{
return error(GL_INVALID_VALUE);
}
auto context = es2::getContext();
if(context)
{
es2::Program *programObject = context->getProgram(program);
if(!programObject)
{
if(context->getShader(program))
{
return error(GL_INVALID_OPERATION);
}
else
{
return error(GL_INVALID_VALUE);
}
}
if(!programObject->isLinked())
{
return error(GL_INVALID_OPERATION);
}
if(!programObject->getUniformfv(location, &bufSize, params))
{
return error(GL_INVALID_OPERATION);
}
}
}
void GetUniformfv(GLuint program, GLint location, GLfloat* params)
{
TRACE("(GLuint program = %d, GLint location = %d, GLfloat* params = %p)", program, location, params);
auto context = es2::getContext();
if(context)
{
es2::Program *programObject = context->getProgram(program);
if(!programObject)
{
if(context->getShader(program))
{
return error(GL_INVALID_OPERATION);
}
else
{
return error(GL_INVALID_VALUE);
}
}
if(!programObject->isLinked())
{
return error(GL_INVALID_OPERATION);
}
if(!programObject->getUniformfv(location, nullptr, params))
{
return error(GL_INVALID_OPERATION);
}
}
}
void GetnUniformivEXT(GLuint program, GLint location, GLsizei bufSize, GLint* params)
{
TRACE("(GLuint program = %d, GLint location = %d, GLsizei bufSize = %d, GLint* params = %p)",
program, location, bufSize, params);
if(bufSize < 0)
{
return error(GL_INVALID_VALUE);
}
auto context = es2::getContext();
if(context)
{
es2::Program *programObject = context->getProgram(program);
if(!programObject)
{
if(context->getShader(program))
{
return error(GL_INVALID_OPERATION);
}
else
{
return error(GL_INVALID_VALUE);
}
}
if(!programObject->isLinked())
{
return error(GL_INVALID_OPERATION);
}
if(!programObject->getUniformiv(location, &bufSize, params))
{
return error(GL_INVALID_OPERATION);
}
}
}
void GetUniformiv(GLuint program, GLint location, GLint* params)
{
TRACE("(GLuint program = %d, GLint location = %d, GLint* params = %p)", program, location, params);
auto context = es2::getContext();
if(context)
{
es2::Program *programObject = context->getProgram(program);
if(!programObject)
{
if(context->getShader(program))
{
return error(GL_INVALID_OPERATION);
}
else
{
return error(GL_INVALID_VALUE);
}
}
if(!programObject->isLinked())
{
return error(GL_INVALID_OPERATION);
}
if(!programObject->getUniformiv(location, nullptr, params))
{
return error(GL_INVALID_OPERATION);
}
}
}
int GetUniformLocation(GLuint program, const GLchar* name)
{
TRACE("(GLuint program = %d, const GLchar* name = %s)", program, name);
auto context = es2::getContext();
if(strstr(name, "gl_") == name)
{
return -1;
}
if(context)
{
es2::Program *programObject = context->getProgram(program);
if(!programObject)
{
if(context->getShader(program))
{
return error(GL_INVALID_OPERATION, -1);
}
else
{
return error(GL_INVALID_VALUE, -1);
}
}
if(!programObject->isLinked())
{
return error(GL_INVALID_OPERATION, -1);
}
return programObject->getUniformLocation(name);
}
return -1;
}
void GetVertexAttribfv(GLuint index, GLenum pname, GLfloat* params)
{
TRACE("(GLuint index = %d, GLenum pname = 0x%X, GLfloat* params = %p)", index, pname, params);
auto context = es2::getContext();
if(context)
{
if(index >= es2::MAX_VERTEX_ATTRIBS)
{
return error(GL_INVALID_VALUE);
}
const es2::VertexAttribute &attribState = context->getVertexAttribState(index);
switch(pname)
{
case GL_VERTEX_ATTRIB_ARRAY_ENABLED:
*params = (GLfloat)(attribState.mArrayEnabled ? GL_TRUE : GL_FALSE);
break;
case GL_VERTEX_ATTRIB_ARRAY_SIZE:
*params = (GLfloat)attribState.mSize;
break;
case GL_VERTEX_ATTRIB_ARRAY_STRIDE:
*params = (GLfloat)attribState.mStride;
break;
case GL_VERTEX_ATTRIB_ARRAY_TYPE:
*params = (GLfloat)attribState.mType;
break;
case GL_VERTEX_ATTRIB_ARRAY_NORMALIZED:
*params = (GLfloat)(attribState.mNormalized ? GL_TRUE : GL_FALSE);
break;
case GL_VERTEX_ATTRIB_ARRAY_BUFFER_BINDING:
*params = (GLfloat)attribState.mBoundBuffer.name();
break;
case GL_CURRENT_VERTEX_ATTRIB:
{
const VertexAttribute& attrib = context->getCurrentVertexAttributes()[index];
for(int i = 0; i < 4; ++i)
{
params[i] = attrib.getCurrentValueF(i);
}
}
break;
case GL_VERTEX_ATTRIB_ARRAY_INTEGER:
*params = (GLfloat)(attribState.mPureInteger ? GL_TRUE : GL_FALSE);
break;
default:
return error(GL_INVALID_ENUM);
}
}
}
void GetVertexAttribiv(GLuint index, GLenum pname, GLint* params)
{
TRACE("(GLuint index = %d, GLenum pname = 0x%X, GLint* params = %p)", index, pname, params);
auto context = es2::getContext();
if(context)
{
if(index >= es2::MAX_VERTEX_ATTRIBS)
{
return error(GL_INVALID_VALUE);
}
const es2::VertexAttribute &attribState = context->getVertexAttribState(index);
switch(pname)
{
case GL_VERTEX_ATTRIB_ARRAY_ENABLED:
*params = (attribState.mArrayEnabled ? GL_TRUE : GL_FALSE);
break;
case GL_VERTEX_ATTRIB_ARRAY_SIZE:
*params = attribState.mSize;
break;
case GL_VERTEX_ATTRIB_ARRAY_STRIDE:
*params = attribState.mStride;
break;
case GL_VERTEX_ATTRIB_ARRAY_TYPE:
*params = attribState.mType;
break;
case GL_VERTEX_ATTRIB_ARRAY_NORMALIZED:
*params = (attribState.mNormalized ? GL_TRUE : GL_FALSE);
break;
case GL_VERTEX_ATTRIB_ARRAY_BUFFER_BINDING:
*params = attribState.mBoundBuffer.name();
break;
case GL_CURRENT_VERTEX_ATTRIB:
{
const VertexAttribute& attrib = context->getCurrentVertexAttributes()[index];
for(int i = 0; i < 4; ++i)
{
float currentValue = attrib.getCurrentValueF(i);
params[i] = (GLint)(currentValue > 0.0f ? floor(currentValue + 0.5f) : ceil(currentValue - 0.5f));
}
}
break;
case GL_VERTEX_ATTRIB_ARRAY_INTEGER:
*params = (attribState.mPureInteger ? GL_TRUE : GL_FALSE);
break;
default:
return error(GL_INVALID_ENUM);
}
}
}
void GetVertexAttribPointerv(GLuint index, GLenum pname, GLvoid** pointer)
{
TRACE("(GLuint index = %d, GLenum pname = 0x%X, GLvoid** pointer = %p)", index, pname, pointer);
auto context = es2::getContext();
if(context)
{
if(index >= es2::MAX_VERTEX_ATTRIBS)
{
return error(GL_INVALID_VALUE);
}
if(pname != GL_VERTEX_ATTRIB_ARRAY_POINTER)
{
return error(GL_INVALID_ENUM);
}
*pointer = const_cast<GLvoid*>(context->getVertexAttribPointer(index));
}
}
void Hint(GLenum target, GLenum mode)
{
TRACE("(GLenum target = 0x%X, GLenum mode = 0x%X)", target, mode);
switch(mode)
{
case GL_FASTEST:
case GL_NICEST:
case GL_DONT_CARE:
break;
default:
return error(GL_INVALID_ENUM);
}
auto context = es2::getContext();
if(context)
{
switch(target)
{
case GL_GENERATE_MIPMAP_HINT:
context->setGenerateMipmapHint(mode);
break;
case GL_FRAGMENT_SHADER_DERIVATIVE_HINT_OES:
context->setFragmentShaderDerivativeHint(mode);
break;
case GL_TEXTURE_FILTERING_HINT_CHROMIUM:
context->setTextureFilteringHint(mode);
break;
default:
return error(GL_INVALID_ENUM);
}
}
}
GLboolean IsBuffer(GLuint buffer)
{
TRACE("(GLuint buffer = %d)", buffer);
auto context = es2::getContext();
if(context && buffer)
{
es2::Buffer *bufferObject = context->getBuffer(buffer);
if(bufferObject)
{
return GL_TRUE;
}
}
return GL_FALSE;
}
GLboolean IsEnabled(GLenum cap)
{
TRACE("(GLenum cap = 0x%X)", cap);
auto context = es2::getContext();
if(context)
{
switch(cap)
{
case GL_CULL_FACE: return context->isCullFaceEnabled();
case GL_POLYGON_OFFSET_FILL: return context->isPolygonOffsetFillEnabled();
case GL_SAMPLE_ALPHA_TO_COVERAGE: return context->isSampleAlphaToCoverageEnabled();
case GL_SAMPLE_COVERAGE: return context->isSampleCoverageEnabled();
case GL_SCISSOR_TEST: return context->isScissorTestEnabled();
case GL_STENCIL_TEST: return context->isStencilTestEnabled();
case GL_DEPTH_TEST: return context->isDepthTestEnabled();
case GL_BLEND: return context->isBlendEnabled();
case GL_DITHER: return context->isDitherEnabled();
case GL_PRIMITIVE_RESTART_FIXED_INDEX: return context->isPrimitiveRestartFixedIndexEnabled();
case GL_RASTERIZER_DISCARD: return context->isRasterizerDiscardEnabled();
default:
return error(GL_INVALID_ENUM, false);
}
}
return false;
}
GLboolean IsFenceNV(GLuint fence)
{
TRACE("(GLuint fence = %d)", fence);
auto context = es2::getContext();
if(context)
{
es2::Fence *fenceObject = context->getFence(fence);
if(!fenceObject)
{
return GL_FALSE;
}
return fenceObject->isFence();
}
return GL_FALSE;
}
GLboolean IsFramebuffer(GLuint framebuffer)
{
TRACE("(GLuint framebuffer = %d)", framebuffer);
auto context = es2::getContext();
if(context && framebuffer)
{
es2::Framebuffer *framebufferObject = context->getFramebuffer(framebuffer);
if(framebufferObject)
{
return GL_TRUE;
}
}
return GL_FALSE;
}
GLboolean IsProgram(GLuint program)
{
TRACE("(GLuint program = %d)", program);
auto context = es2::getContext();
if(context && program)
{
es2::Program *programObject = context->getProgram(program);
if(programObject)
{
return GL_TRUE;
}
}
return GL_FALSE;
}
GLboolean IsQueryEXT(GLuint name)
{
TRACE("(GLuint name = %d)", name);
if(name == 0)
{
return GL_FALSE;
}
auto context = es2::getContext();
if(context)
{
es2::Query *queryObject = context->getQuery(name);
if(queryObject)
{
return GL_TRUE;
}
}
return GL_FALSE;
}
GLboolean IsRenderbuffer(GLuint renderbuffer)
{
TRACE("(GLuint renderbuffer = %d)", renderbuffer);
auto context = es2::getContext();
if(context && renderbuffer)
{
es2::Renderbuffer *renderbufferObject = context->getRenderbuffer(renderbuffer);
if(renderbufferObject)
{
return GL_TRUE;
}
}
return GL_FALSE;
}
GLboolean IsShader(GLuint shader)
{
TRACE("(GLuint shader = %d)", shader);
auto context = es2::getContext();
if(context && shader)
{
es2::Shader *shaderObject = context->getShader(shader);
if(shaderObject)
{
return GL_TRUE;
}
}
return GL_FALSE;
}
GLboolean IsTexture(GLuint texture)
{
TRACE("(GLuint texture = %d)", texture);
auto context = es2::getContext();
if(context && texture)
{
es2::Texture *textureObject = context->getTexture(texture);
if(textureObject)
{
return GL_TRUE;
}
}
return GL_FALSE;
}
void LineWidth(GLfloat width)
{
TRACE("(GLfloat width = %f)", width);
if(width <= 0.0f)
{
return error(GL_INVALID_VALUE);
}
auto context = es2::getContext();
if(context)
{
context->setLineWidth(width);
}
}
void LinkProgram(GLuint program)
{
TRACE("(GLuint program = %d)", program);
auto context = es2::getContext();
if(context)
{
es2::Program *programObject = context->getProgram(program);
if(!programObject)
{
if(context->getShader(program))
{
return error(GL_INVALID_OPERATION);
}
else
{
return error(GL_INVALID_VALUE);
}
}
if(programObject == context->getCurrentProgram())
{
es2::TransformFeedback* transformFeedback = context->getTransformFeedback();
if(transformFeedback && transformFeedback->isActive())
{
return error(GL_INVALID_OPERATION);
}
}
programObject->link();
}
}
void PixelStorei(GLenum pname, GLint param)
{
TRACE("(GLenum pname = 0x%X, GLint param = %d)", pname, param);
auto context = es2::getContext();
if(context)
{
switch(pname)
{
case GL_UNPACK_ALIGNMENT:
if(param != 1 && param != 2 && param != 4 && param != 8)
{
return error(GL_INVALID_VALUE);
}
context->setUnpackAlignment(param);
break;
case GL_PACK_ALIGNMENT:
if(param != 1 && param != 2 && param != 4 && param != 8)
{
return error(GL_INVALID_VALUE);
}
context->setPackAlignment(param);
break;
case GL_PACK_ROW_LENGTH:
if(param < 0)
{
return error(GL_INVALID_VALUE);
}
context->setPackRowLength(param);
break;
case GL_PACK_SKIP_PIXELS:
if(param < 0)
{
return error(GL_INVALID_VALUE);
}
context->setPackSkipPixels(param);
break;
case GL_PACK_SKIP_ROWS:
if(param < 0)
{
return error(GL_INVALID_VALUE);
}
context->setPackSkipRows(param);
break;
case GL_UNPACK_ROW_LENGTH:
if(param < 0)
{
return error(GL_INVALID_VALUE);
}
context->setUnpackRowLength(param);
break;
case GL_UNPACK_IMAGE_HEIGHT:
if(param < 0)
{
return error(GL_INVALID_VALUE);
}
context->setUnpackImageHeight(param);
break;
case GL_UNPACK_SKIP_PIXELS:
if(param < 0)
{
return error(GL_INVALID_VALUE);
}
context->setUnpackSkipPixels(param);
break;
case GL_UNPACK_SKIP_ROWS:
if(param < 0)
{
return error(GL_INVALID_VALUE);
}
context->setUnpackSkipRows(param);
break;
case GL_UNPACK_SKIP_IMAGES:
if(param < 0)
{
return error(GL_INVALID_VALUE);
}
context->setUnpackSkipImages(param);
break;
default:
return error(GL_INVALID_ENUM);
}
}
}
void PolygonOffset(GLfloat factor, GLfloat units)
{
TRACE("(GLfloat factor = %f, GLfloat units = %f)", factor, units);
auto context = es2::getContext();
if(context)
{
context->setPolygonOffsetParams(factor, units);
}
}
void ReadnPixelsEXT(GLint x, GLint y, GLsizei width, GLsizei height,
GLenum format, GLenum type, GLsizei bufSize, GLvoid *data)
{
TRACE("(GLint x = %d, GLint y = %d, GLsizei width = %d, GLsizei height = %d, "
"GLenum format = 0x%X, GLenum type = 0x%X, GLsizei bufSize = 0x%d, GLvoid *data = %p)",
x, y, width, height, format, type, bufSize, data);
if(width < 0 || height < 0 || bufSize < 0)
{
return error(GL_INVALID_VALUE);
}
auto context = es2::getContext();
if(context)
{
context->readPixels(x, y, width, height, format, type, &bufSize, data);
}
}
void ReadPixels(GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type, GLvoid* pixels)
{
TRACE("(GLint x = %d, GLint y = %d, GLsizei width = %d, GLsizei height = %d, "
"GLenum format = 0x%X, GLenum type = 0x%X, GLvoid* pixels = %p)",
x, y, width, height, format, type, pixels);
if(width < 0 || height < 0)
{
return error(GL_INVALID_VALUE);
}
auto context = es2::getContext();
if(context)
{
context->readPixels(x, y, width, height, format, type, nullptr, pixels);
}
}
void ReleaseShaderCompiler(void)
{
TRACE("()");
es2::Shader::releaseCompiler();
}
void RenderbufferStorageMultisample(GLenum target, GLsizei samples, GLenum internalformat, GLsizei width, GLsizei height)
{
TRACE("(GLenum target = 0x%X, GLsizei samples = %d, GLenum internalformat = 0x%X, GLsizei width = %d, GLsizei height = %d)",
target, samples, internalformat, width, height);
switch(target)
{
case GL_RENDERBUFFER:
break;
default:
return error(GL_INVALID_ENUM);
}
if(width < 0 || height < 0 || samples < 0 ||
width > es2::IMPLEMENTATION_MAX_RENDERBUFFER_SIZE ||
height > es2::IMPLEMENTATION_MAX_RENDERBUFFER_SIZE)
{
return error(GL_INVALID_VALUE);
}
if(samples > es2::IMPLEMENTATION_MAX_SAMPLES ||
(IsNonNormalizedInteger(internalformat) && samples > 0))
{
return error(GL_INVALID_OPERATION);
}
auto context = es2::getContext();
if(context)
{
GLuint handle = context->getRenderbufferName();
if(handle == 0)
{
return error(GL_INVALID_OPERATION);
}
if(IsColorRenderable(internalformat))
{
context->setRenderbufferStorage(new es2::Colorbuffer(width, height, internalformat, samples));
}
else if(IsDepthRenderable(internalformat) && IsStencilRenderable(internalformat))
{
context->setRenderbufferStorage(new es2::DepthStencilbuffer(width, height, internalformat, samples));
}
else if(IsDepthRenderable(internalformat))
{
context->setRenderbufferStorage(new es2::Depthbuffer(width, height, internalformat, samples));
}
else if(IsStencilRenderable(internalformat))
{
context->setRenderbufferStorage(new es2::Stencilbuffer(width, height, samples));
}
else error(GL_INVALID_ENUM);
}
}
void RenderbufferStorageMultisampleANGLE(GLenum target, GLsizei samples, GLenum internalformat, GLsizei width, GLsizei height)
{
RenderbufferStorageMultisample(target, samples, internalformat, width, height);
}
void RenderbufferStorage(GLenum target, GLenum internalformat, GLsizei width, GLsizei height)
{
RenderbufferStorageMultisample(target, 0, internalformat, width, height);
}
void SampleCoverage(GLclampf value, GLboolean invert)
{
TRACE("(GLclampf value = %f, GLboolean invert = %d)", value, invert);
auto context = es2::getContext();
if(context)
{
context->setSampleCoverageParams(es2::clamp01(value), invert != GL_FALSE);
}
}
void SetFenceNV(GLuint fence, GLenum condition)
{
TRACE("(GLuint fence = %d, GLenum condition = 0x%X)", fence, condition);
if(condition != GL_ALL_COMPLETED_NV)
{
return error(GL_INVALID_ENUM);
}
auto context = es2::getContext();
if(context)
{
es2::Fence *fenceObject = context->getFence(fence);
if(!fenceObject)
{
return error(GL_INVALID_OPERATION);
}
fenceObject->setFence(condition);
}
}
void Scissor(GLint x, GLint y, GLsizei width, GLsizei height)
{
TRACE("(GLint x = %d, GLint y = %d, GLsizei width = %d, GLsizei height = %d)", x, y, width, height);
if(width < 0 || height < 0)
{
return error(GL_INVALID_VALUE);
}
auto context = es2::getContext();
if(context)
{
context->setScissorParams(x, y, width, height);
}
}
void ShaderBinary(GLsizei n, const GLuint* shaders, GLenum binaryformat, const GLvoid* binary, GLsizei length)
{
TRACE("(GLsizei n = %d, const GLuint* shaders = %p, GLenum binaryformat = 0x%X, "
"const GLvoid* binary = %p, GLsizei length = %d)",
n, shaders, binaryformat, binary, length);
// No binary shader formats are supported.
return error(GL_INVALID_ENUM);
}
void ShaderSource(GLuint shader, GLsizei count, const GLchar *const *string, const GLint *length)
{
TRACE("(GLuint shader = %d, GLsizei count = %d, const GLchar** string = %p, const GLint* length = %p)",
shader, count, string, length);
if(count < 0)
{
return error(GL_INVALID_VALUE);
}
auto context = es2::getContext();
if(context)
{
es2::Shader *shaderObject = context->getShader(shader);
if(!shaderObject)
{
if(context->getProgram(shader))
{
return error(GL_INVALID_OPERATION);
}
else
{
return error(GL_INVALID_VALUE);
}
}
shaderObject->setSource(count, string, length);
}
}
void StencilFuncSeparate(GLenum face, GLenum func, GLint ref, GLuint mask)
{
TRACE("(GLenum face = 0x%X, GLenum func = 0x%X, GLint ref = %d, GLuint mask = %d)", face, func, ref, mask);
switch(face)
{
case GL_FRONT:
case GL_BACK:
case GL_FRONT_AND_BACK:
break;
default:
return error(GL_INVALID_ENUM);
}
switch(func)
{
case GL_NEVER:
case GL_ALWAYS:
case GL_LESS:
case GL_LEQUAL:
case GL_EQUAL:
case GL_GEQUAL:
case GL_GREATER:
case GL_NOTEQUAL:
break;
default:
return error(GL_INVALID_ENUM);
}
auto context = es2::getContext();
if(context)
{
if(face == GL_FRONT || face == GL_FRONT_AND_BACK)
{
context->setStencilParams(func, ref, mask);
}
if(face == GL_BACK || face == GL_FRONT_AND_BACK)
{
context->setStencilBackParams(func, ref, mask);
}
}
}
void StencilFunc(GLenum func, GLint ref, GLuint mask)
{
StencilFuncSeparate(GL_FRONT_AND_BACK, func, ref, mask);
}
void StencilMaskSeparate(GLenum face, GLuint mask)
{
TRACE("(GLenum face = 0x%X, GLuint mask = %d)", face, mask);
switch(face)
{
case GL_FRONT:
case GL_BACK:
case GL_FRONT_AND_BACK:
break;
default:
return error(GL_INVALID_ENUM);
}
auto context = es2::getContext();
if(context)
{
if(face == GL_FRONT || face == GL_FRONT_AND_BACK)
{
context->setStencilWritemask(mask);
}
if(face == GL_BACK || face == GL_FRONT_AND_BACK)
{
context->setStencilBackWritemask(mask);
}
}
}
void StencilMask(GLuint mask)
{
StencilMaskSeparate(GL_FRONT_AND_BACK, mask);
}
void StencilOpSeparate(GLenum face, GLenum fail, GLenum zfail, GLenum zpass)
{
TRACE("(GLenum face = 0x%X, GLenum fail = 0x%X, GLenum zfail = 0x%X, GLenum zpas = 0x%Xs)",
face, fail, zfail, zpass);
switch(face)
{
case GL_FRONT:
case GL_BACK:
case GL_FRONT_AND_BACK:
break;
default:
return error(GL_INVALID_ENUM);
}
switch(fail)
{
case GL_ZERO:
case GL_KEEP:
case GL_REPLACE:
case GL_INCR:
case GL_DECR:
case GL_INVERT:
case GL_INCR_WRAP:
case GL_DECR_WRAP:
break;
default:
return error(GL_INVALID_ENUM);
}
switch(zfail)
{
case GL_ZERO:
case GL_KEEP:
case GL_REPLACE:
case GL_INCR:
case GL_DECR:
case GL_INVERT:
case GL_INCR_WRAP:
case GL_DECR_WRAP:
break;
default:
return error(GL_INVALID_ENUM);
}
switch(zpass)
{
case GL_ZERO:
case GL_KEEP:
case GL_REPLACE:
case GL_INCR:
case GL_DECR:
case GL_INVERT:
case GL_INCR_WRAP:
case GL_DECR_WRAP:
break;
default:
return error(GL_INVALID_ENUM);
}
auto context = es2::getContext();
if(context)
{
if(face == GL_FRONT || face == GL_FRONT_AND_BACK)
{
context->setStencilOperations(fail, zfail, zpass);
}
if(face == GL_BACK || face == GL_FRONT_AND_BACK)
{
context->setStencilBackOperations(fail, zfail, zpass);
}
}
}
void StencilOp(GLenum fail, GLenum zfail, GLenum zpass)
{
StencilOpSeparate(GL_FRONT_AND_BACK, fail, zfail, zpass);
}
GLboolean TestFenceNV(GLuint fence)
{
TRACE("(GLuint fence = %d)", fence);
auto context = es2::getContext();
if(context)
{
es2::Fence *fenceObject = context->getFence(fence);
if(!fenceObject)
{
return error(GL_INVALID_OPERATION, GL_TRUE);
}
return fenceObject->testFence();
}
return GL_TRUE;
}
void TexImage2D(GLenum target, GLint level, GLint internalformat, GLsizei width, GLsizei height,
GLint border, GLenum format, GLenum type, const GLvoid* data)
{
TRACE("(GLenum target = 0x%X, GLint level = %d, GLint internalformat = %d, GLsizei width = %d, GLsizei height = %d, "
"GLint border = %d, GLenum format = 0x%X, GLenum type = 0x%X, const GLvoid* data = %p)",
target, level, internalformat, width, height, border, format, type, data);
if(!validImageSize(level, width, height))
{
return error(GL_INVALID_VALUE);
}
auto context = es2::getContext();
if(context)
{
// GL_APPLE_texture_format_BGRA8888 allows (only) GL_BGRA_EXT / GL_RGBA, while
// GL_EXT_texture_format_BGRA8888 also allows GL_BGRA_EXT / GL_BGRA_EXT.
if(format == GL_BGRA_EXT && internalformat == GL_RGBA)
{
internalformat = GL_BGRA_EXT;
}
GLenum validationError = ValidateTextureFormatType(format, type, internalformat, target);
if(validationError != GL_NO_ERROR)
{
return error(validationError);
}
if(border != 0)
{
return error(GL_INVALID_VALUE);
}
switch(target)
{
case GL_TEXTURE_RECTANGLE_ARB:
if(level != 0)
{
return error(GL_INVALID_VALUE); // Defining level other than 0 is not allowed
}
// Fall through to GL_TEXTURE_2D case.
case GL_TEXTURE_2D:
if(width > (es2::IMPLEMENTATION_MAX_TEXTURE_SIZE >> level) ||
height > (es2::IMPLEMENTATION_MAX_TEXTURE_SIZE >> level))
{
return error(GL_INVALID_VALUE);
}
break;
case GL_TEXTURE_CUBE_MAP_POSITIVE_X:
case GL_TEXTURE_CUBE_MAP_NEGATIVE_X:
case GL_TEXTURE_CUBE_MAP_POSITIVE_Y:
case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y:
case GL_TEXTURE_CUBE_MAP_POSITIVE_Z:
case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z:
if(width != height)
{
return error(GL_INVALID_VALUE);
}
if(width > (es2::IMPLEMENTATION_MAX_CUBE_MAP_TEXTURE_SIZE >> level) ||
height > (es2::IMPLEMENTATION_MAX_CUBE_MAP_TEXTURE_SIZE >> level))
{
return error(GL_INVALID_VALUE);
}
break;
default:
return error(GL_INVALID_ENUM);
}
validationError = context->getPixels(&data, type, context->getRequiredBufferSize(width, height, 1, format, type));
if(validationError != GL_NO_ERROR)
{
return error(validationError);
}
GLint sizedInternalFormat = gl::GetSizedInternalFormat(internalformat, type);
if(target == GL_TEXTURE_2D || target == GL_TEXTURE_RECTANGLE_ARB)
{
es2::Texture2D *texture = context->getTexture2D(target);
if(!texture)
{
return error(GL_INVALID_OPERATION);
}
texture->setImage(level, width, height, sizedInternalFormat, format, type, context->getUnpackParameters(), data);
}
else
{
es2::TextureCubeMap *texture = context->getTextureCubeMap();
if(!texture)
{
return error(GL_INVALID_OPERATION);
}
texture->setImage(target, level, width, height, sizedInternalFormat, format, type, context->getUnpackParameters(), data);
}
}
}
void TexParameterf(GLenum target, GLenum pname, GLfloat param)
{
TRACE("(GLenum target = 0x%X, GLenum pname = 0x%X, GLfloat param = %f)", target, pname, param);
auto context = es2::getContext();
if(context)
{
es2::Texture *texture;
switch(target)
{
case GL_TEXTURE_2D: texture = context->getTexture2D(); break;
case GL_TEXTURE_2D_ARRAY: texture = context->getTexture2DArray(); break;
case GL_TEXTURE_3D: texture = context->getTexture3D(); break;
case GL_TEXTURE_CUBE_MAP: texture = context->getTextureCubeMap(); break;
case GL_TEXTURE_EXTERNAL_OES: texture = context->getTextureExternal(); break;
case GL_TEXTURE_RECTANGLE_ARB: texture = context->getTexture2DRect(); break;
default:
return error(GL_INVALID_ENUM);
}
switch(pname)
{
case GL_TEXTURE_WRAP_S:
if(!texture->setWrapS((GLenum)param))
{
return error(GL_INVALID_ENUM);
}
break;
case GL_TEXTURE_WRAP_T:
if(!texture->setWrapT((GLenum)param))
{
return error(GL_INVALID_ENUM);
}
break;
case GL_TEXTURE_WRAP_R_OES:
if(!texture->setWrapR((GLenum)param))
{
return error(GL_INVALID_ENUM);
}
break;
case GL_TEXTURE_MIN_FILTER:
if(!texture->setMinFilter((GLenum)param))
{
return error(GL_INVALID_ENUM);
}
break;
case GL_TEXTURE_MAG_FILTER:
if(!texture->setMagFilter((GLenum)param))
{
return error(GL_INVALID_ENUM);
}
break;
case GL_TEXTURE_MAX_ANISOTROPY_EXT:
if(!texture->setMaxAnisotropy(param))
{
return error(GL_INVALID_VALUE);
}
break;
case GL_TEXTURE_BASE_LEVEL:
if(!texture->setBaseLevel((GLint)(roundf(param))))
{
return error(GL_INVALID_VALUE);
}
break;
case GL_TEXTURE_COMPARE_FUNC:
if(!texture->setCompareFunc((GLenum)param))
{
return error(GL_INVALID_VALUE);
}
break;
case GL_TEXTURE_COMPARE_MODE:
if(!texture->setCompareMode((GLenum)param))
{
return error(GL_INVALID_VALUE);
}
break;
case GL_TEXTURE_MAX_LEVEL:
if(!texture->setMaxLevel((GLint)(roundf(param))))
{
return error(GL_INVALID_VALUE);
}
break;
case GL_TEXTURE_MAX_LOD:
if(!texture->setMaxLOD(param))
{
return error(GL_INVALID_VALUE);
}
break;
case GL_TEXTURE_MIN_LOD:
if(!texture->setMinLOD(param))
{
return error(GL_INVALID_VALUE);
}
break;
case GL_TEXTURE_SWIZZLE_R:
if(!texture->setSwizzleR((GLenum)param))
{
return error(GL_INVALID_VALUE);
}
break;
case GL_TEXTURE_SWIZZLE_G:
if(!texture->setSwizzleG((GLenum)param))
{
return error(GL_INVALID_VALUE);
}
break;
case GL_TEXTURE_SWIZZLE_B:
if(!texture->setSwizzleB((GLenum)param))
{
return error(GL_INVALID_VALUE);
}
break;
case GL_TEXTURE_SWIZZLE_A:
if(!texture->setSwizzleA((GLenum)param))
{
return error(GL_INVALID_VALUE);
}
break;
default:
return error(GL_INVALID_ENUM);
}
}
}
void TexParameterfv(GLenum target, GLenum pname, const GLfloat* params)
{
TexParameterf(target, pname, *params);
}
void TexParameteri(GLenum target, GLenum pname, GLint param)
{
TRACE("(GLenum target = 0x%X, GLenum pname = 0x%X, GLint param = %d)", target, pname, param);
auto context = es2::getContext();
if(context)
{
es2::Texture *texture;
switch(target)
{
case GL_TEXTURE_2D: texture = context->getTexture2D(); break;
case GL_TEXTURE_2D_ARRAY: texture = context->getTexture2DArray(); break;
case GL_TEXTURE_3D: texture = context->getTexture3D(); break;
case GL_TEXTURE_CUBE_MAP: texture = context->getTextureCubeMap(); break;
case GL_TEXTURE_EXTERNAL_OES: texture = context->getTextureExternal(); break;
case GL_TEXTURE_RECTANGLE_ARB: texture = context->getTexture2DRect(); break;
default:
return error(GL_INVALID_ENUM);
}
switch(pname)
{
case GL_TEXTURE_WRAP_S:
if(!texture->setWrapS((GLenum)param))
{
return error(GL_INVALID_ENUM);
}
break;
case GL_TEXTURE_WRAP_T:
if(!texture->setWrapT((GLenum)param))
{
return error(GL_INVALID_ENUM);
}
break;
case GL_TEXTURE_WRAP_R_OES:
if(!texture->setWrapR((GLenum)param))
{
return error(GL_INVALID_ENUM);
}
break;
case GL_TEXTURE_MIN_FILTER:
if(!texture->setMinFilter((GLenum)param))
{
return error(GL_INVALID_ENUM);
}
break;
case GL_TEXTURE_MAG_FILTER:
if(!texture->setMagFilter((GLenum)param))
{
return error(GL_INVALID_ENUM);
}
break;
case GL_TEXTURE_MAX_ANISOTROPY_EXT:
if(!texture->setMaxAnisotropy((GLfloat)param))
{
return error(GL_INVALID_VALUE);
}
break;
case GL_TEXTURE_BASE_LEVEL:
if((texture->getTarget() == GL_TEXTURE_RECTANGLE_ARB) && (param != 0))
{
return error(GL_INVALID_OPERATION); // Base level has to be 0
}
if(!texture->setBaseLevel(param))
{
return error(GL_INVALID_VALUE);
}
break;
case GL_TEXTURE_COMPARE_FUNC:
if(!texture->setCompareFunc((GLenum)param))
{
return error(GL_INVALID_VALUE);
}
break;
case GL_TEXTURE_COMPARE_MODE:
if(!texture->setCompareMode((GLenum)param))
{
return error(GL_INVALID_VALUE);
}
break;
case GL_TEXTURE_MAX_LEVEL:
if(!texture->setMaxLevel(param))
{
return error(GL_INVALID_VALUE);
}
break;
case GL_TEXTURE_MAX_LOD:
if(!texture->setMaxLOD((GLfloat)param))
{
return error(GL_INVALID_VALUE);
}
break;
case GL_TEXTURE_MIN_LOD:
if(!texture->setMinLOD((GLfloat)param))
{
return error(GL_INVALID_VALUE);
}
break;
case GL_TEXTURE_SWIZZLE_R:
if(!texture->setSwizzleR((GLenum)param))
{
return error(GL_INVALID_VALUE);
}
break;
case GL_TEXTURE_SWIZZLE_G:
if(!texture->setSwizzleG((GLenum)param))
{
return error(GL_INVALID_VALUE);
}
break;
case GL_TEXTURE_SWIZZLE_B:
if(!texture->setSwizzleB((GLenum)param))
{
return error(GL_INVALID_VALUE);
}
break;
case GL_TEXTURE_SWIZZLE_A:
if(!texture->setSwizzleA((GLenum)param))
{
return error(GL_INVALID_VALUE);
}
break;
default:
return error(GL_INVALID_ENUM);
}
}
}
void TexParameteriv(GLenum target, GLenum pname, const GLint* params)
{
TexParameteri(target, pname, *params);
}
void TexSubImage2D(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height,
GLenum format, GLenum type, const GLvoid* data)
{
TRACE("(GLenum target = 0x%X, GLint level = %d, GLint xoffset = %d, GLint yoffset = %d, "
"GLsizei width = %d, GLsizei height = %d, GLenum format = 0x%X, GLenum type = 0x%X, "
"const GLvoid* data = %p)",
target, level, xoffset, yoffset, width, height, format, type, data);
if(!es2::IsTextureTarget(target))
{
return error(GL_INVALID_ENUM);
}
if(level < 0 || level >= es2::IMPLEMENTATION_MAX_TEXTURE_LEVELS)
{
return error(GL_INVALID_VALUE);
}
if(xoffset < 0 || yoffset < 0 || width < 0 || height < 0)
{
return error(GL_INVALID_VALUE);
}
if(std::numeric_limits<GLsizei>::max() - xoffset < width || std::numeric_limits<GLsizei>::max() - yoffset < height)
{
return error(GL_INVALID_VALUE);
}
auto context = es2::getContext();
if(context)
{
if(target == GL_TEXTURE_2D || target == GL_TEXTURE_RECTANGLE_ARB)
{
es2::Texture2D *texture = context->getTexture2D(target);
GLenum validationError = ValidateSubImageParams(false, false, target, level, xoffset, yoffset, width, height, format, type, texture);
if(validationError != GL_NO_ERROR)
{
return error(validationError);
}
validationError = context->getPixels(&data, type, context->getRequiredBufferSize(width, height, 1, format, type));
if(validationError != GL_NO_ERROR)
{
return error(validationError);
}
texture->subImage(level, xoffset, yoffset, width, height, format, type, context->getUnpackParameters(), data);
}
else if(es2::IsCubemapTextureTarget(target))
{
es2::TextureCubeMap *texture = context->getTextureCubeMap();
GLenum validationError = ValidateSubImageParams(false, false, target, level, xoffset, yoffset, width, height, format, type, texture);
if(validationError != GL_NO_ERROR)
{
return error(validationError);
}
validationError = context->getPixels(&data, type, context->getRequiredBufferSize(width, height, 1, format, type));
if(validationError != GL_NO_ERROR)
{
return error(validationError);
}
texture->subImage(target, level, xoffset, yoffset, width, height, format, type, context->getUnpackParameters(), data);
}
else UNREACHABLE(target);
}
}
void Uniform1fv(GLint location, GLsizei count, const GLfloat* v)
{
TRACE("(GLint location = %d, GLsizei count = %d, const GLfloat* v = %p)", location, count, v);
if(count < 0)
{
return error(GL_INVALID_VALUE);
}
auto context = es2::getContext();
if(context)
{
es2::Program *program = context->getCurrentProgram();
if(!program)
{
return error(GL_INVALID_OPERATION);
}
if(location == -1)
{
return;
}
if(!program->setUniform1fv(location, count, v))
{
return error(GL_INVALID_OPERATION);
}
}
}
void Uniform1f(GLint location, GLfloat x)
{
Uniform1fv(location, 1, &x);
}
void Uniform1iv(GLint location, GLsizei count, const GLint* v)
{
TRACE("(GLint location = %d, GLsizei count = %d, const GLint* v = %p)", location, count, v);
if(count < 0)
{
return error(GL_INVALID_VALUE);
}
auto context = es2::getContext();
if(context)
{
es2::Program *program = context->getCurrentProgram();
if(!program)
{
return error(GL_INVALID_OPERATION);
}
if(location == -1)
{
return;
}
if(!program->setUniform1iv(location, count, v))
{
return error(GL_INVALID_OPERATION);
}
}
}
void Uniform1i(GLint location, GLint x)
{
Uniform1iv(location, 1, &x);
}
void Uniform2fv(GLint location, GLsizei count, const GLfloat* v)
{
TRACE("(GLint location = %d, GLsizei count = %d, const GLfloat* v = %p)", location, count, v);
if(count < 0)
{
return error(GL_INVALID_VALUE);
}
auto context = es2::getContext();
if(context)
{
es2::Program *program = context->getCurrentProgram();
if(!program)
{
return error(GL_INVALID_OPERATION);
}
if(location == -1)
{
return;
}
if(!program->setUniform2fv(location, count, v))
{
return error(GL_INVALID_OPERATION);
}
}
}
void Uniform2f(GLint location, GLfloat x, GLfloat y)
{
GLfloat xy[2] = {x, y};
Uniform2fv(location, 1, (GLfloat*)&xy);
}
void Uniform2iv(GLint location, GLsizei count, const GLint* v)
{
TRACE("(GLint location = %d, GLsizei count = %d, const GLint* v = %p)", location, count, v);
if(count < 0)
{
return error(GL_INVALID_VALUE);
}
auto context = es2::getContext();
if(context)
{
es2::Program *program = context->getCurrentProgram();
if(!program)
{
return error(GL_INVALID_OPERATION);
}
if(location == -1)
{
return;
}
if(!program->setUniform2iv(location, count, v))
{
return error(GL_INVALID_OPERATION);
}
}
}
void Uniform2i(GLint location, GLint x, GLint y)
{
GLint xy[4] = {x, y};
Uniform2iv(location, 1, (GLint*)&xy);
}
void Uniform3fv(GLint location, GLsizei count, const GLfloat* v)
{
TRACE("(GLint location = %d, GLsizei count = %d, const GLfloat* v = %p)", location, count, v);
if(count < 0)
{
return error(GL_INVALID_VALUE);
}
auto context = es2::getContext();
if(context)
{
es2::Program *program = context->getCurrentProgram();
if(!program)
{
return error(GL_INVALID_OPERATION);
}
if(location == -1)
{
return;
}
if(!program->setUniform3fv(location, count, v))
{
return error(GL_INVALID_OPERATION);
}
}
}
void Uniform3f(GLint location, GLfloat x, GLfloat y, GLfloat z)
{
GLfloat xyz[3] = {x, y, z};
Uniform3fv(location, 1, (GLfloat*)&xyz);
}
void Uniform3iv(GLint location, GLsizei count, const GLint* v)
{
TRACE("(GLint location = %d, GLsizei count = %d, const GLint* v = %p)", location, count, v);
if(count < 0)
{
return error(GL_INVALID_VALUE);
}
auto context = es2::getContext();
if(context)
{
es2::Program *program = context->getCurrentProgram();
if(!program)
{
return error(GL_INVALID_OPERATION);
}
if(location == -1)
{
return;
}
if(!program->setUniform3iv(location, count, v))
{
return error(GL_INVALID_OPERATION);
}
}
}
void Uniform3i(GLint location, GLint x, GLint y, GLint z)
{
GLint xyz[3] = {x, y, z};
Uniform3iv(location, 1, (GLint*)&xyz);
}
void Uniform4fv(GLint location, GLsizei count, const GLfloat* v)
{
TRACE("(GLint location = %d, GLsizei count = %d, const GLfloat* v = %p)", location, count, v);
if(count < 0)
{
return error(GL_INVALID_VALUE);
}
auto context = es2::getContext();
if(context)
{
es2::Program *program = context->getCurrentProgram();
if(!program)
{
return error(GL_INVALID_OPERATION);
}
if(location == -1)
{
return;
}
if(!program->setUniform4fv(location, count, v))
{
return error(GL_INVALID_OPERATION);
}
}
}
void Uniform4f(GLint location, GLfloat x, GLfloat y, GLfloat z, GLfloat w)
{
GLfloat xyzw[4] = {x, y, z, w};
Uniform4fv(location, 1, (GLfloat*)&xyzw);
}
void Uniform4iv(GLint location, GLsizei count, const GLint* v)
{
TRACE("(GLint location = %d, GLsizei count = %d, const GLint* v = %p)", location, count, v);
if(count < 0)
{
return error(GL_INVALID_VALUE);
}
auto context = es2::getContext();
if(context)
{
es2::Program *program = context->getCurrentProgram();
if(!program)
{
return error(GL_INVALID_OPERATION);
}
if(location == -1)
{
return;
}
if(!program->setUniform4iv(location, count, v))
{
return error(GL_INVALID_OPERATION);
}
}
}
void Uniform4i(GLint location, GLint x, GLint y, GLint z, GLint w)
{
GLint xyzw[4] = {x, y, z, w};
Uniform4iv(location, 1, (GLint*)&xyzw);
}
void UniformMatrix2fv(GLint location, GLsizei count, GLboolean transpose, const GLfloat* value)
{
TRACE("(GLint location = %d, GLsizei count = %d, GLboolean transpose = %d, const GLfloat* value = %p)",
location, count, transpose, value);
if(count < 0)
{
return error(GL_INVALID_VALUE);
}
auto context = es2::getContext();
if(context)
{
es2::Program *program = context->getCurrentProgram();
if(!program)
{
return error(GL_INVALID_OPERATION);
}
if(location == -1)
{
return;
}
if(!program->setUniformMatrix2fv(location, count, transpose, value))
{
return error(GL_INVALID_OPERATION);
}
}
}
void UniformMatrix3fv(GLint location, GLsizei count, GLboolean transpose, const GLfloat* value)
{
TRACE("(GLint location = %d, GLsizei count = %d, GLboolean transpose = %d, const GLfloat* value = %p)",
location, count, transpose, value);
if(count < 0)
{
return error(GL_INVALID_VALUE);
}
auto context = es2::getContext();
if(context)
{
es2::Program *program = context->getCurrentProgram();
if(!program)
{
return error(GL_INVALID_OPERATION);
}
if(location == -1)
{
return;
}
if(!program->setUniformMatrix3fv(location, count, transpose, value))
{
return error(GL_INVALID_OPERATION);
}
}
}
void UniformMatrix4fv(GLint location, GLsizei count, GLboolean transpose, const GLfloat* value)
{
TRACE("(GLint location = %d, GLsizei count = %d, GLboolean transpose = %d, const GLfloat* value = %p)",
location, count, transpose, value);
if(count < 0)
{
return error(GL_INVALID_VALUE);
}
auto context = es2::getContext();
if(context)
{
es2::Program *program = context->getCurrentProgram();
if(!program)
{
return error(GL_INVALID_OPERATION);
}
if(location == -1)
{
return;
}
if(!program->setUniformMatrix4fv(location, count, transpose, value))
{
return error(GL_INVALID_OPERATION);
}
}
}
void UseProgram(GLuint program)
{
TRACE("(GLuint program = %d)", program);
auto context = es2::getContext();
if(context)
{
es2::TransformFeedback* transformFeedback = context->getTransformFeedback();
if(transformFeedback && transformFeedback->isActive() && !transformFeedback->isPaused())
{
return error(GL_INVALID_OPERATION);
}
es2::Program *programObject = context->getProgram(program);
if(!programObject && program != 0)
{
if(context->getShader(program))
{
return error(GL_INVALID_OPERATION);
}
else
{
return error(GL_INVALID_VALUE);
}
}
if(program != 0 && !programObject->isLinked())
{
return error(GL_INVALID_OPERATION);
}
context->useProgram(program);
}
}
void ValidateProgram(GLuint program)
{
TRACE("(GLuint program = %d)", program);
auto context = es2::getContext();
if(context)
{
es2::Program *programObject = context->getProgram(program);
if(!programObject)
{
if(context->getShader(program))
{
return error(GL_INVALID_OPERATION);
}
else
{
return error(GL_INVALID_VALUE);
}
}
programObject->validate(context->getDevice());
}
}
void VertexAttrib1f(GLuint index, GLfloat x)
{
TRACE("(GLuint index = %d, GLfloat x = %f)", index, x);
if(index >= es2::MAX_VERTEX_ATTRIBS)
{
return error(GL_INVALID_VALUE);
}
auto context = es2::getContext();
if(context)
{
GLfloat vals[4] = { x, 0, 0, 1 };
context->setVertexAttrib(index, vals);
}
}
void VertexAttrib1fv(GLuint index, const GLfloat* values)
{
TRACE("(GLuint index = %d, const GLfloat* values = %p)", index, values);
if(index >= es2::MAX_VERTEX_ATTRIBS)
{
return error(GL_INVALID_VALUE);
}
auto context = es2::getContext();
if(context)
{
GLfloat vals[4] = { values[0], 0, 0, 1 };
context->setVertexAttrib(index, vals);
}
}
void VertexAttrib2f(GLuint index, GLfloat x, GLfloat y)
{
TRACE("(GLuint index = %d, GLfloat x = %f, GLfloat y = %f)", index, x, y);
if(index >= es2::MAX_VERTEX_ATTRIBS)
{
return error(GL_INVALID_VALUE);
}
auto context = es2::getContext();
if(context)
{
GLfloat vals[4] = { x, y, 0, 1 };
context->setVertexAttrib(index, vals);
}
}
void VertexAttrib2fv(GLuint index, const GLfloat* values)
{
TRACE("(GLuint index = %d, const GLfloat* values = %p)", index, values);
if(index >= es2::MAX_VERTEX_ATTRIBS)
{
return error(GL_INVALID_VALUE);
}
auto context = es2::getContext();
if(context)
{
GLfloat vals[4] = { values[0], values[1], 0, 1 };
context->setVertexAttrib(index, vals);
}
}
void VertexAttrib3f(GLuint index, GLfloat x, GLfloat y, GLfloat z)
{
TRACE("(GLuint index = %d, GLfloat x = %f, GLfloat y = %f, GLfloat z = %f)", index, x, y, z);
if(index >= es2::MAX_VERTEX_ATTRIBS)
{
return error(GL_INVALID_VALUE);
}
auto context = es2::getContext();
if(context)
{
GLfloat vals[4] = { x, y, z, 1 };
context->setVertexAttrib(index, vals);
}
}
void VertexAttrib3fv(GLuint index, const GLfloat* values)
{
TRACE("(GLuint index = %d, const GLfloat* values = %p)", index, values);
if(index >= es2::MAX_VERTEX_ATTRIBS)
{
return error(GL_INVALID_VALUE);
}
auto context = es2::getContext();
if(context)
{
GLfloat vals[4] = { values[0], values[1], values[2], 1 };
context->setVertexAttrib(index, vals);
}
}
void VertexAttrib4f(GLuint index, GLfloat x, GLfloat y, GLfloat z, GLfloat w)
{
TRACE("(GLuint index = %d, GLfloat x = %f, GLfloat y = %f, GLfloat z = %f, GLfloat w = %f)", index, x, y, z, w);
if(index >= es2::MAX_VERTEX_ATTRIBS)
{
return error(GL_INVALID_VALUE);
}
auto context = es2::getContext();
if(context)
{
GLfloat vals[4] = { x, y, z, w };
context->setVertexAttrib(index, vals);
}
}
void VertexAttrib4fv(GLuint index, const GLfloat* values)
{
TRACE("(GLuint index = %d, const GLfloat* values = %p)", index, values);
if(index >= es2::MAX_VERTEX_ATTRIBS)
{
return error(GL_INVALID_VALUE);
}
auto context = es2::getContext();
if(context)
{
context->setVertexAttrib(index, values);
}
}
void VertexAttribPointer(GLuint index, GLint size, GLenum type, GLboolean normalized, GLsizei stride, const GLvoid* ptr)
{
TRACE("(GLuint index = %d, GLint size = %d, GLenum type = 0x%X, "
"GLboolean normalized = %d, GLsizei stride = %d, const GLvoid* ptr = %p)",
index, size, type, normalized, stride, ptr);
if(index >= es2::MAX_VERTEX_ATTRIBS)
{
return error(GL_INVALID_VALUE);
}
if(size < 1 || size > 4)
{
return error(GL_INVALID_VALUE);
}
switch(type)
{
case GL_BYTE:
case GL_UNSIGNED_BYTE:
case GL_SHORT:
case GL_UNSIGNED_SHORT:
case GL_FIXED:
case GL_FLOAT:
case GL_HALF_FLOAT_OES: // GL_OES_vertex_half_float
case GL_HALF_FLOAT:
case GL_INT:
case GL_UNSIGNED_INT:
break;
case GL_INT_2_10_10_10_REV:
case GL_UNSIGNED_INT_2_10_10_10_REV:
if(size != 4)
{
return error(GL_INVALID_OPERATION);
}
break;
default:
return error(GL_INVALID_ENUM);
}
if(stride < 0)
{
return error(GL_INVALID_VALUE);
}
auto context = es2::getContext();
if(context)
{
es2::VertexArray* vertexArray = context->getCurrentVertexArray();
if((context->getArrayBufferName() == 0) && vertexArray && (vertexArray->name != 0) && ptr)
{
// GL_INVALID_OPERATION is generated if a non-zero vertex array object is bound, zero is bound
// to the GL_ARRAY_BUFFER buffer object binding point and the pointer argument is not NULL.
return error(GL_INVALID_OPERATION);
}
context->setVertexAttribState(index, context->getArrayBuffer(), size, type, (normalized != GL_FALSE), false, stride, ptr);
}
}
void Viewport(GLint x, GLint y, GLsizei width, GLsizei height)
{
TRACE("(GLint x = %d, GLint y = %d, GLsizei width = %d, GLsizei height = %d)", x, y, width, height);
if(width < 0 || height < 0)
{
return error(GL_INVALID_VALUE);
}
auto context = es2::getContext();
if(context)
{
context->setViewportParams(x, y, width, height);
}
}
static void BlitFramebufferSW(GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1, GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1, GLbitfield mask, GLenum filter, bool allowPartialDepthStencilBlit)
{
TRACE("(GLint srcX0 = %d, GLint srcY0 = %d, GLint srcX1 = %d, GLint srcY1 = %d, "
"GLint dstX0 = %d, GLint dstY0 = %d, GLint dstX1 = %d, GLint dstY1 = %d, "
"GLbitfield mask = 0x%X, GLenum filter = 0x%X)",
srcX0, srcY0, srcX1, srcX1, dstX0, dstY0, dstX1, dstY1, mask, filter);
switch(filter)
{
case GL_NEAREST:
break;
default:
return error(GL_INVALID_ENUM);
}
if((mask & ~(GL_COLOR_BUFFER_BIT | GL_STENCIL_BUFFER_BIT | GL_DEPTH_BUFFER_BIT)) != 0)
{
return error(GL_INVALID_VALUE);
}
auto context = es2::getContext();
if(context)
{
if(context->getReadFramebufferName() == context->getDrawFramebufferName())
{
ERR("Blits with the same source and destination framebuffer are not supported by this implementation.");
return error(GL_INVALID_OPERATION);
}
context->blitFramebuffer(srcX0, srcY0, srcX1, srcY1, dstX0, dstY0, dstX1, dstY1, mask, false, allowPartialDepthStencilBlit);
}
}
void BlitFramebufferNV(GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1, GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1, GLbitfield mask, GLenum filter)
{
BlitFramebufferSW(srcX0, srcY0, srcX1, srcY1, dstX0, dstY0, dstX1, dstY1, mask, filter, true);
}
void BlitFramebufferANGLE(GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1, GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1,
GLbitfield mask, GLenum filter)
{
if(srcX1 - srcX0 != dstX1 - dstX0 || srcY1 - srcY0 != dstY1 - dstY0)
{
ERR("Scaling and flipping in BlitFramebufferANGLE not supported by this implementation");
return error(GL_INVALID_OPERATION);
}
BlitFramebufferSW(srcX0, srcY0, srcX1, srcY1, dstX0, dstY0, dstX1, dstY1, mask, filter, false);
}
void TexImage3DOES(GLenum target, GLint level, GLenum internalformat, GLsizei width, GLsizei height, GLsizei depth,
GLint border, GLenum format, GLenum type, const GLvoid* data)
{
TRACE("(GLenum target = 0x%X, GLint level = %d, GLenum internalformat = 0x%X, "
"GLsizei width = %d, GLsizei height = %d, GLsizei depth = %d, GLint border = %d, "
"GLenum format = 0x%X, GLenum type = 0x%x, const GLvoid* data = %p)",
target, level, internalformat, width, height, depth, border, format, type, data);
switch(target)
{
case GL_TEXTURE_3D:
switch(format)
{
case GL_DEPTH_COMPONENT:
case GL_DEPTH_STENCIL_OES:
return error(GL_INVALID_OPERATION);
default:
break;
}
break;
default:
return error(GL_INVALID_ENUM);
}
if(internalformat != format)
{
return error(GL_INVALID_OPERATION);
}
GLenum validationError = ValidateTextureFormatType(format, type, internalformat, target);
if(validationError != GL_NO_ERROR)
{
return error(validationError);
}
if((level < 0) || (level >= es2::IMPLEMENTATION_MAX_TEXTURE_LEVELS))
{
return error(GL_INVALID_VALUE);
}
const GLsizei maxSize3D = es2::IMPLEMENTATION_MAX_3D_TEXTURE_SIZE >> level;
if((width < 0) || (height < 0) || (depth < 0) || (width > maxSize3D) || (height > maxSize3D) || (depth > maxSize3D))
{
return error(GL_INVALID_VALUE);
}
if(border != 0)
{
return error(GL_INVALID_VALUE);
}
auto context = es2::getContext();
if(context)
{
es2::Texture3D *texture = context->getTexture3D();
if(!texture)
{
return error(GL_INVALID_OPERATION);
}
GLenum validationError = context->getPixels(&data, type, context->getRequiredBufferSize(width, height, depth, format, type));
if(validationError != GL_NO_ERROR)
{
return error(validationError);
}
GLint sizedInternalFormat = gl::GetSizedInternalFormat(internalformat, type);
texture->setImage(level, width, height, depth, sizedInternalFormat, format, type, context->getUnpackParameters(), data);
}
}
void TexSubImage3DOES(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLsizei width, GLsizei height, GLsizei depth, GLenum format, GLenum type, const void *data)
{
TRACE("(GLenum target = 0x%X, GLint level = %d, GLint xoffset = %d, GLint yoffset = %d, "
"GLint zoffset = %d, GLsizei width = %d, GLsizei height = %d, GLsizei depth = %d, "
"GLenum format = 0x%X, GLenum type = 0x%x, const GLvoid* data = %p)",
target, level, xoffset, yoffset, zoffset, width, height, depth, format, type, data);
switch(target)
{
case GL_TEXTURE_3D:
break;
default:
return error(GL_INVALID_ENUM);
}
if((level < 0) || (level >= es2::IMPLEMENTATION_MAX_TEXTURE_LEVELS))
{
return error(GL_INVALID_VALUE);
}
if((width < 0) || (height < 0) || (depth < 0))
{
return error(GL_INVALID_VALUE);
}
auto context = es2::getContext();
if(context)
{
es2::Texture3D *texture = context->getTexture3D();
GLenum validationError = ValidateSubImageParams(false, false, target, level, xoffset, yoffset, zoffset, width, height, depth, format, type, texture);
if(validationError != GL_NO_ERROR)
{
return error(validationError);
}
validationError = context->getPixels(&data, type, context->getRequiredBufferSize(width, height, depth, format, type));
if(validationError != GL_NO_ERROR)
{
return error(validationError);
}
texture->subImage(level, xoffset, yoffset, zoffset, width, height, depth, format, type, context->getUnpackParameters(), data);
}
}
void CopyTexSubImage3DOES(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLint x, GLint y, GLsizei width, GLsizei height)
{
TRACE("(GLenum target = 0x%X, GLint level = %d, GLint xoffset = %d, GLint yoffset = %d, "
"GLint zoffset = %d, GLint x = %d, GLint y = %d, GLsizei width = %d, GLsizei height = %d)",
target, level, xoffset, yoffset, zoffset, x, y, width, height);
switch(target)
{
case GL_TEXTURE_3D:
break;
default:
return error(GL_INVALID_ENUM);
}
if((level < 0) || (level >= es2::IMPLEMENTATION_MAX_TEXTURE_LEVELS))
{
return error(GL_INVALID_VALUE);
}
auto context = es2::getContext();
if(context)
{
es2::Framebuffer *framebuffer = context->getReadFramebuffer();
if(!framebuffer || (framebuffer->completeness() != GL_FRAMEBUFFER_COMPLETE))
{
return error(GL_INVALID_FRAMEBUFFER_OPERATION);
}
es2::Renderbuffer *source = framebuffer->getReadColorbuffer();
if(context->getReadFramebufferName() != 0 && (!source || source->getSamples() > 1))
{
return error(GL_INVALID_OPERATION);
}
es2::Texture3D *texture = context->getTexture3D();
GLenum validationError = ValidateSubImageParams(false, true, target, level, xoffset, yoffset, zoffset, width, height, 1, GL_NONE, GL_NONE, texture);
if(validationError != GL_NO_ERROR)
{
return error(validationError);
}
texture->copySubImage(target, level, xoffset, yoffset, zoffset, x, y, width, height, source);
}
}
void CompressedTexImage3DOES(GLenum target, GLint level, GLenum internalformat, GLsizei width, GLsizei height, GLsizei depth, GLint border, GLsizei imageSize, const void *data)
{
TRACE("(GLenum target = 0x%X, GLint level = %d, GLenum internalformat = 0x%X, GLsizei width = %d, "
"GLsizei height = %d, GLsizei depth = %d, GLint border = %d, GLsizei imageSize = %d, const GLvoid* data = %p)",
target, level, internalformat, width, height, depth, border, imageSize, data);
switch(target)
{
case GL_TEXTURE_3D:
break;
default:
return error(GL_INVALID_ENUM);
}
if((level < 0) || (level >= es2::IMPLEMENTATION_MAX_TEXTURE_LEVELS))
{
return error(GL_INVALID_VALUE);
}
const GLsizei maxSize3D = es2::IMPLEMENTATION_MAX_3D_TEXTURE_SIZE >> level;
if((width < 0) || (height < 0) || (depth < 0) || (width > maxSize3D) || (height > maxSize3D) || (depth > maxSize3D) ||(border != 0) || (imageSize < 0))
{
return error(GL_INVALID_VALUE);
}
if(!IsCompressed(internalformat))
{
return error(GL_INVALID_ENUM);
}
if(imageSize != gl::ComputeCompressedSize(width, height, internalformat) * depth)
{
return error(GL_INVALID_VALUE);
}
auto context = es2::getContext();
if(context)
{
es2::Texture3D *texture = context->getTexture3D();
if(!texture)
{
return error(GL_INVALID_OPERATION);
}
GLenum validationError = context->getPixels(&data, GL_UNSIGNED_BYTE, imageSize);
if(validationError != GL_NO_ERROR)
{
return error(validationError);
}
texture->setCompressedImage(level, internalformat, width, height, depth, imageSize, data);
}
}
void CompressedTexSubImage3DOES(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLsizei width, GLsizei height, GLsizei depth, GLenum format, GLsizei imageSize, const void *data)
{
TRACE("(GLenum target = 0x%X, GLint level = %d, GLint xoffset = %d, GLint yoffset = %d, "
"GLint zoffset = %d, GLsizei width = %d, GLsizei height = %d, GLsizei depth = %d, "
"GLenum format = 0x%X, GLsizei imageSize = %d, const void *data = %p)",
target, level, xoffset, yoffset, zoffset, width, height, depth, format, imageSize, data);
switch(target)
{
case GL_TEXTURE_3D:
break;
default:
return error(GL_INVALID_ENUM);
}
if(level < 0 || level >= es2::IMPLEMENTATION_MAX_TEXTURE_LEVELS)
{
return error(GL_INVALID_VALUE);
}
if(xoffset < 0 || yoffset < 0 || zoffset < 0 || !validImageSize(level, width, height) || depth < 0 || imageSize < 0)
{
return error(GL_INVALID_VALUE);
}
if(!IsCompressed(format))
{
return error(GL_INVALID_ENUM);
}
if(imageSize != gl::ComputeCompressedSize(width, height, format) * depth)
{
return error(GL_INVALID_VALUE);
}
auto context = es2::getContext();
if(context)
{
es2::Texture3D *texture = context->getTexture3D();
if(!texture)
{
return error(GL_INVALID_OPERATION);
}
GLenum validationError = context->getPixels(&data, GL_UNSIGNED_BYTE, imageSize);
if(validationError != GL_NO_ERROR)
{
return error(validationError);
}
texture->subImageCompressed(level, xoffset, yoffset, zoffset, width, height, depth, format, imageSize, data);
}
}
void FramebufferTexture3DOES(GLenum target, GLenum attachment, GLenum textarget, GLuint texture, GLint level, GLint zoffset)
{
TRACE("(GLenum target = 0x%X, GLenum attachment = 0x%X, GLenum textarget = 0x%X, "
"GLuint texture = %d, GLint level = %d, GLint zoffset = %d)", target, attachment, textarget, texture, level, zoffset);
if(target != GL_FRAMEBUFFER && target != GL_DRAW_FRAMEBUFFER && target != GL_READ_FRAMEBUFFER)
{
return error(GL_INVALID_ENUM);
}
auto context = es2::getContext();
if(context)
{
if(texture == 0)
{
textarget = GL_NONE;
}
else
{
es2::Texture *tex = context->getTexture(texture);
if(!tex)
{
return error(GL_INVALID_OPERATION);
}
switch(textarget)
{
case GL_TEXTURE_3D:
if(tex->getTarget() != GL_TEXTURE_3D)
{
return error(GL_INVALID_OPERATION);
}
break;
default:
return error(GL_INVALID_ENUM);
}
if((level < 0) || (level >= es2::IMPLEMENTATION_MAX_TEXTURE_LEVELS))
{
return error(GL_INVALID_VALUE);
}
if(tex->isCompressed(textarget, level))
{
return error(GL_INVALID_OPERATION);
}
}
es2::Framebuffer *framebuffer = nullptr;
GLuint framebufferName = 0;
if(target == GL_READ_FRAMEBUFFER)
{
framebuffer = context->getReadFramebuffer();
framebufferName = context->getReadFramebufferName();
}
else
{
framebuffer = context->getDrawFramebuffer();
framebufferName = context->getDrawFramebufferName();
}
if(framebufferName == 0 || !framebuffer)
{
return error(GL_INVALID_OPERATION);
}
switch(attachment)
{
case GL_DEPTH_ATTACHMENT: framebuffer->setDepthbuffer(textarget, texture, level); break;
case GL_STENCIL_ATTACHMENT: framebuffer->setStencilbuffer(textarget, texture, level); break;
default:
if(attachment < GL_COLOR_ATTACHMENT0 || attachment > GL_COLOR_ATTACHMENT31)
{
return error(GL_INVALID_ENUM);
}
if((attachment - GL_COLOR_ATTACHMENT0) >= MAX_COLOR_ATTACHMENTS)
{
return error(GL_INVALID_OPERATION);
}
framebuffer->setColorbuffer(textarget, texture, attachment - GL_COLOR_ATTACHMENT0, level);
break;
}
}
}
void EGLImageTargetTexture2DOES(GLenum target, GLeglImageOES image)
{
if(egl::getClientVersion() == 1)
{
return libGLES_CM->glEGLImageTargetTexture2DOES(target, image);
}
TRACE("(GLenum target = 0x%X, GLeglImageOES image = %p)", target, image);
switch(target)
{
case GL_TEXTURE_2D:
case GL_TEXTURE_RECTANGLE_ARB:
case GL_TEXTURE_EXTERNAL_OES:
break;
default:
return error(GL_INVALID_ENUM);
}
auto context = es2::getContext();
if(context)
{
es2::Texture2D *texture = context->getTexture2D(target);
if(!texture)
{
return error(GL_INVALID_OPERATION);
}
egl::Image *eglImage = context->getSharedImage(image);
if(!eglImage)
{
return error(GL_INVALID_OPERATION);
}
texture->setSharedImage(eglImage);
}
}
void EGLImageTargetRenderbufferStorageOES(GLenum target, GLeglImageOES image)
{
TRACE("(GLenum target = 0x%X, GLeglImageOES image = %p)", target, image);
UNIMPLEMENTED();
}
GLboolean IsRenderbufferOES(GLuint renderbuffer)
{
return IsRenderbuffer(renderbuffer);
}
void BindRenderbufferOES(GLenum target, GLuint renderbuffer)
{
BindRenderbuffer(target, renderbuffer);
}
void DeleteRenderbuffersOES(GLsizei n, const GLuint* renderbuffers)
{
DeleteRenderbuffers(n, renderbuffers);
}
void GenRenderbuffersOES(GLsizei n, GLuint* renderbuffers)
{
GenRenderbuffers(n, renderbuffers);
}
void RenderbufferStorageOES(GLenum target, GLenum internalformat, GLsizei width, GLsizei height)
{
RenderbufferStorage(target, internalformat, width, height);
}
void GetRenderbufferParameterivOES(GLenum target, GLenum pname, GLint* params)
{
GetRenderbufferParameteriv(target, pname, params);
}
GLboolean IsFramebufferOES(GLuint framebuffer)
{
return IsFramebuffer(framebuffer);
}
void BindFramebufferOES(GLenum target, GLuint framebuffer)
{
BindFramebuffer(target, framebuffer);
}
void DeleteFramebuffersOES(GLsizei n, const GLuint* framebuffers)
{
DeleteFramebuffers(n, framebuffers);
}
void GenFramebuffersOES(GLsizei n, GLuint* framebuffers)
{
GenFramebuffers(n, framebuffers);
}
GLenum CheckFramebufferStatusOES(GLenum target)
{
return CheckFramebufferStatus(target);
}
void FramebufferRenderbufferOES(GLenum target, GLenum attachment, GLenum renderbuffertarget, GLuint renderbuffer)
{
FramebufferRenderbuffer(target, attachment, renderbuffertarget, renderbuffer);
}
void FramebufferTexture2DOES(GLenum target, GLenum attachment, GLenum textarget, GLuint texture, GLint level)
{
FramebufferTexture2D(target, attachment, textarget, texture, level);
}
void GetFramebufferAttachmentParameterivOES(GLenum target, GLenum attachment, GLenum pname, GLint* params)
{
GetFramebufferAttachmentParameteriv(target, attachment, pname, params);
}
void GenerateMipmapOES(GLenum target)
{
GenerateMipmap(target);
}
void DrawBuffersEXT(GLsizei n, const GLenum *bufs)
{
TRACE("(GLsizei n = %d, const GLenum *bufs = %p)", n, bufs);
if(n < 0 || n > MAX_DRAW_BUFFERS)
{
return error(GL_INVALID_VALUE);
}
auto context = es2::getContext();
if(context)
{
GLuint drawFramebufferName = context->getDrawFramebufferName();
if((drawFramebufferName == 0) && (n != 1))
{
return error(GL_INVALID_OPERATION);
}
for(unsigned int i = 0; i < (unsigned)n; i++)
{
switch(bufs[i])
{
case GL_BACK:
if(drawFramebufferName != 0)
{
return error(GL_INVALID_OPERATION);
}
break;
case GL_NONE:
break;
case GL_COLOR_ATTACHMENT0_EXT:
case GL_COLOR_ATTACHMENT1_EXT:
case GL_COLOR_ATTACHMENT2_EXT:
case GL_COLOR_ATTACHMENT3_EXT:
case GL_COLOR_ATTACHMENT4_EXT:
case GL_COLOR_ATTACHMENT5_EXT:
case GL_COLOR_ATTACHMENT6_EXT:
case GL_COLOR_ATTACHMENT7_EXT:
case GL_COLOR_ATTACHMENT8_EXT:
case GL_COLOR_ATTACHMENT9_EXT:
case GL_COLOR_ATTACHMENT10_EXT:
case GL_COLOR_ATTACHMENT11_EXT:
case GL_COLOR_ATTACHMENT12_EXT:
case GL_COLOR_ATTACHMENT13_EXT:
case GL_COLOR_ATTACHMENT14_EXT:
case GL_COLOR_ATTACHMENT15_EXT:
{
GLuint index = (bufs[i] - GL_COLOR_ATTACHMENT0_EXT);
if(index >= MAX_COLOR_ATTACHMENTS)
{
return error(GL_INVALID_OPERATION);
}
if(index != i)
{
return error(GL_INVALID_OPERATION);
}
if(drawFramebufferName == 0)
{
return error(GL_INVALID_OPERATION);
}
}
break;
default:
return error(GL_INVALID_ENUM);
}
}
context->setFramebufferDrawBuffers(n, bufs);
}
}
}
#include "entry_points.h"
extern "C" NO_SANITIZE_FUNCTION __eglMustCastToProperFunctionPointerType es2GetProcAddress(const char *procname)
{
struct Function
{
const char *name;
__eglMustCastToProperFunctionPointerType address;
};
static const Function glFunctions[] =
{
#define FUNCTION(name) {"gl" #name, (__eglMustCastToProperFunctionPointerType)gl::name}
FUNCTION(ActiveTexture),
FUNCTION(AttachShader),
FUNCTION(BeginQuery),
FUNCTION(BeginQueryEXT),
FUNCTION(BeginTransformFeedback),
FUNCTION(BindAttribLocation),
FUNCTION(BindBuffer),
FUNCTION(BindBufferBase),
FUNCTION(BindBufferRange),
FUNCTION(BindFramebuffer),
FUNCTION(BindFramebufferOES),
FUNCTION(BindRenderbuffer),
FUNCTION(BindRenderbufferOES),
FUNCTION(BindSampler),
FUNCTION(BindTexture),
FUNCTION(BindTransformFeedback),
FUNCTION(BindVertexArray),
FUNCTION(BindVertexArrayOES),
FUNCTION(BlendColor),
FUNCTION(BlendEquation),
FUNCTION(BlendEquationSeparate),
FUNCTION(BlendFunc),
FUNCTION(BlendFuncSeparate),
FUNCTION(BlitFramebuffer),
FUNCTION(BlitFramebufferANGLE),
FUNCTION(BufferData),
FUNCTION(BufferSubData),
FUNCTION(CheckFramebufferStatus),
FUNCTION(CheckFramebufferStatusOES),
FUNCTION(Clear),
FUNCTION(ClearBufferfi),
FUNCTION(ClearBufferfv),
FUNCTION(ClearBufferiv),
FUNCTION(ClearBufferuiv),
FUNCTION(ClearColor),
FUNCTION(ClearDepthf),
FUNCTION(ClearStencil),
FUNCTION(ClientWaitSync),
FUNCTION(ColorMask),
FUNCTION(CompileShader),
FUNCTION(CompressedTexImage2D),
FUNCTION(CompressedTexImage3D),
FUNCTION(CompressedTexSubImage2D),
FUNCTION(CompressedTexSubImage3D),
FUNCTION(CopyBufferSubData),
FUNCTION(CopyTexImage2D),
FUNCTION(CopyTexSubImage2D),
FUNCTION(CopyTexSubImage3D),
FUNCTION(CreateProgram),
FUNCTION(CreateShader),
FUNCTION(CullFace),
FUNCTION(DeleteBuffers),
FUNCTION(DeleteFencesNV),
FUNCTION(DeleteFramebuffers),
FUNCTION(DeleteFramebuffersOES),
FUNCTION(DeleteProgram),
FUNCTION(DeleteQueries),
FUNCTION(DeleteQueriesEXT),
FUNCTION(DeleteRenderbuffers),
FUNCTION(DeleteRenderbuffersOES),
FUNCTION(DeleteSamplers),
FUNCTION(DeleteShader),
FUNCTION(DeleteSync),
FUNCTION(DeleteTextures),
FUNCTION(DeleteTransformFeedbacks),
FUNCTION(DeleteVertexArrays),
FUNCTION(DeleteVertexArraysOES),
FUNCTION(DepthFunc),
FUNCTION(DepthMask),
FUNCTION(DepthRangef),
FUNCTION(DetachShader),
FUNCTION(Disable),
FUNCTION(DisableVertexAttribArray),
FUNCTION(DrawArrays),
FUNCTION(DrawArraysInstanced),
FUNCTION(DrawBuffers),
FUNCTION(DrawBuffersEXT),
FUNCTION(DrawElements),
FUNCTION(DrawElementsInstanced),
FUNCTION(DrawRangeElements),
FUNCTION(EGLImageTargetRenderbufferStorageOES),
FUNCTION(EGLImageTargetTexture2DOES),
FUNCTION(Enable),
FUNCTION(EnableVertexAttribArray),
FUNCTION(EndQuery),
FUNCTION(EndQueryEXT),
FUNCTION(EndTransformFeedback),
FUNCTION(FenceSync),
FUNCTION(Finish),
FUNCTION(FinishFenceNV),
FUNCTION(Flush),
FUNCTION(FlushMappedBufferRange),
FUNCTION(FramebufferRenderbuffer),
FUNCTION(FramebufferRenderbufferOES),
FUNCTION(FramebufferTexture2D),
FUNCTION(FramebufferTexture2DOES),
FUNCTION(FramebufferTextureLayer),
FUNCTION(FrontFace),
FUNCTION(GenBuffers),
FUNCTION(GenFencesNV),
FUNCTION(GenFramebuffers),
FUNCTION(GenFramebuffersOES),
FUNCTION(GenQueries),
FUNCTION(GenQueriesEXT),
FUNCTION(GenRenderbuffers),
FUNCTION(GenRenderbuffersOES),
FUNCTION(GenSamplers),
FUNCTION(GenTextures),
FUNCTION(GenTransformFeedbacks),
FUNCTION(GenVertexArrays),
FUNCTION(GenVertexArraysOES),
FUNCTION(GenerateMipmap),
FUNCTION(GenerateMipmapOES),
FUNCTION(GetActiveAttrib),
FUNCTION(GetActiveUniform),
FUNCTION(GetActiveUniformBlockName),
FUNCTION(GetActiveUniformBlockiv),
FUNCTION(GetActiveUniformsiv),
FUNCTION(GetAttachedShaders),
FUNCTION(GetAttribLocation),
FUNCTION(GetBooleanv),
FUNCTION(GetBufferParameteri64v),
FUNCTION(GetBufferParameteriv),
FUNCTION(GetBufferPointerv),
FUNCTION(GetError),
FUNCTION(GetFenceivNV),
FUNCTION(GetFloatv),
FUNCTION(GetFragDataLocation),
FUNCTION(GetFramebufferAttachmentParameteriv),
FUNCTION(GetFramebufferAttachmentParameterivOES),
FUNCTION(GetGraphicsResetStatusEXT),
FUNCTION(GetInteger64i_v),
FUNCTION(GetInteger64v),
FUNCTION(GetIntegeri_v),
FUNCTION(GetIntegerv),
FUNCTION(GetInternalformativ),
FUNCTION(GetProgramBinary),
FUNCTION(GetProgramInfoLog),
FUNCTION(GetProgramiv),
FUNCTION(GetQueryObjectuiv),
FUNCTION(GetQueryObjectuivEXT),
FUNCTION(GetQueryiv),
FUNCTION(GetQueryivEXT),
FUNCTION(GetRenderbufferParameteriv),
FUNCTION(GetRenderbufferParameterivOES),
FUNCTION(GetSamplerParameterfv),
FUNCTION(GetSamplerParameteriv),
FUNCTION(GetShaderInfoLog),
FUNCTION(GetShaderPrecisionFormat),
FUNCTION(GetShaderSource),
FUNCTION(GetShaderiv),
FUNCTION(GetString),
FUNCTION(GetStringi),
FUNCTION(GetSynciv),
FUNCTION(GetTexParameterfv),
FUNCTION(GetTexParameteriv),
FUNCTION(GetTransformFeedbackVarying),
FUNCTION(GetUniformBlockIndex),
FUNCTION(GetUniformIndices),
FUNCTION(GetUniformLocation),
FUNCTION(GetUniformfv),
FUNCTION(GetUniformiv),
FUNCTION(GetUniformuiv),
FUNCTION(GetVertexAttribIiv),
FUNCTION(GetVertexAttribIuiv),
FUNCTION(GetVertexAttribPointerv),
FUNCTION(GetVertexAttribfv),
FUNCTION(GetVertexAttribiv),
FUNCTION(GetnUniformfvEXT),
FUNCTION(GetnUniformivEXT),
FUNCTION(Hint),
FUNCTION(InvalidateFramebuffer),
FUNCTION(InvalidateSubFramebuffer),
FUNCTION(IsBuffer),
FUNCTION(IsEnabled),
FUNCTION(IsFenceNV),
FUNCTION(IsFramebuffer),
FUNCTION(IsFramebufferOES),
FUNCTION(IsProgram),
FUNCTION(IsQuery),
FUNCTION(IsQueryEXT),
FUNCTION(IsRenderbuffer),
FUNCTION(IsRenderbufferOES),
FUNCTION(IsSampler),
FUNCTION(IsShader),
FUNCTION(IsSync),
FUNCTION(IsTexture),
FUNCTION(IsTransformFeedback),
FUNCTION(IsVertexArray),
FUNCTION(IsVertexArrayOES),
FUNCTION(LineWidth),
FUNCTION(LinkProgram),
FUNCTION(MapBufferRange),
FUNCTION(PauseTransformFeedback),
FUNCTION(PixelStorei),
FUNCTION(PolygonOffset),
FUNCTION(ProgramBinary),
FUNCTION(ProgramParameteri),
FUNCTION(ReadBuffer),
FUNCTION(ReadPixels),
FUNCTION(ReadnPixelsEXT),
FUNCTION(ReleaseShaderCompiler),
FUNCTION(RenderbufferStorage),
FUNCTION(RenderbufferStorageMultisample),
FUNCTION(RenderbufferStorageMultisampleANGLE),
FUNCTION(RenderbufferStorageOES),
FUNCTION(ResumeTransformFeedback),
FUNCTION(SampleCoverage),
FUNCTION(SamplerParameterf),
FUNCTION(SamplerParameterfv),
FUNCTION(SamplerParameteri),
FUNCTION(SamplerParameteriv),
FUNCTION(Scissor),
FUNCTION(SetFenceNV),
FUNCTION(ShaderBinary),
FUNCTION(ShaderSource),
FUNCTION(StencilFunc),
FUNCTION(StencilFuncSeparate),
FUNCTION(StencilMask),
FUNCTION(StencilMaskSeparate),
FUNCTION(StencilOp),
FUNCTION(StencilOpSeparate),
FUNCTION(TestFenceNV),
FUNCTION(TexImage2D),
FUNCTION(TexImage3D),
FUNCTION(TexImage3DOES),
FUNCTION(TexParameterf),
FUNCTION(TexParameterfv),
FUNCTION(TexParameteri),
FUNCTION(TexParameteriv),
FUNCTION(TexStorage2D),
FUNCTION(TexStorage3D),
FUNCTION(TexSubImage2D),
FUNCTION(TexSubImage3D),
FUNCTION(TransformFeedbackVaryings),
FUNCTION(Uniform1f),
FUNCTION(Uniform1fv),
FUNCTION(Uniform1i),
FUNCTION(Uniform1iv),
FUNCTION(Uniform1ui),
FUNCTION(Uniform1uiv),
FUNCTION(Uniform2f),
FUNCTION(Uniform2fv),
FUNCTION(Uniform2i),
FUNCTION(Uniform2iv),
FUNCTION(Uniform2ui),
FUNCTION(Uniform2uiv),
FUNCTION(Uniform3f),
FUNCTION(Uniform3fv),
FUNCTION(Uniform3i),
FUNCTION(Uniform3iv),
FUNCTION(Uniform3ui),
FUNCTION(Uniform3uiv),
FUNCTION(Uniform4f),
FUNCTION(Uniform4fv),
FUNCTION(Uniform4i),
FUNCTION(Uniform4iv),
FUNCTION(Uniform4ui),
FUNCTION(Uniform4uiv),
FUNCTION(UniformBlockBinding),
FUNCTION(UniformMatrix2fv),
FUNCTION(UniformMatrix2x3fv),
FUNCTION(UniformMatrix2x4fv),
FUNCTION(UniformMatrix3fv),
FUNCTION(UniformMatrix3x2fv),
FUNCTION(UniformMatrix3x4fv),
FUNCTION(UniformMatrix4fv),
FUNCTION(UniformMatrix4x2fv),
FUNCTION(UniformMatrix4x3fv),
FUNCTION(UnmapBuffer),
FUNCTION(UseProgram),
FUNCTION(ValidateProgram),
FUNCTION(VertexAttrib1f),
FUNCTION(VertexAttrib1fv),
FUNCTION(VertexAttrib2f),
FUNCTION(VertexAttrib2fv),
FUNCTION(VertexAttrib3f),
FUNCTION(VertexAttrib3fv),
FUNCTION(VertexAttrib4f),
FUNCTION(VertexAttrib4fv),
FUNCTION(VertexAttribDivisor),
FUNCTION(VertexAttribDivisorANGLE),
FUNCTION(VertexAttribDivisorEXT),
FUNCTION(VertexAttribI4i),
FUNCTION(VertexAttribI4iv),
FUNCTION(VertexAttribI4ui),
FUNCTION(VertexAttribI4uiv),
FUNCTION(VertexAttribIPointer),
FUNCTION(VertexAttribPointer),
FUNCTION(Viewport),
FUNCTION(WaitSync),
#undef FUNCTION
};
static const size_t numFunctions = sizeof glFunctions / sizeof(Function);
static const Function *const glFunctionsEnd = glFunctions + numFunctions;
// The array must be kept sorted with respect to strcmp(), so that binary search works correctly.
// The Unix command "LC_COLLATE=C sort" will generate the correct order.
#ifndef NDEBUG
for(size_t i = 0; i < numFunctions - 1; i++)
{
ASSERT(strcmp(glFunctions[i].name, glFunctions[i + 1].name) < 0);
}
#endif
if(procname && strncmp("gl", procname, 2) == 0)
{
struct CompareFunctor
{
bool operator()(const Function &a, const Function &b) const
{
return strcmp(a.name, b.name) < 0;
}
};
Function needle;
needle.name = procname;
const Function *result = std::lower_bound(glFunctions, glFunctionsEnd, needle, CompareFunctor());
if(result != glFunctionsEnd && strcmp(procname, result->name) == 0)
{
return (__eglMustCastToProperFunctionPointerType)result->address;
}
}
return nullptr;
}