| #include "precompiled.h" |
| // |
| // Copyright (c) 2013-2014 The ANGLE Project Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| // |
| |
| // validationES3.cpp: Validation functions for OpenGL ES 3.0 entry point parameters |
| |
| #include "libGLESv2/validationES3.h" |
| #include "libGLESv2/validationES.h" |
| #include "libGLESv2/Context.h" |
| #include "libGLESv2/Texture.h" |
| #include "libGLESv2/Framebuffer.h" |
| #include "libGLESv2/Renderbuffer.h" |
| #include "libGLESv2/formatutils.h" |
| #include "libGLESv2/main.h" |
| #include "libGLESv2/FramebufferAttachment.h" |
| |
| #include "common/mathutil.h" |
| |
| namespace gl |
| { |
| |
| // ES3 has a specific set of permutations of internal formats, formats and types which are acceptable. |
| struct ES3FormatCombination |
| { |
| GLenum internalFormat; |
| GLenum format; |
| GLenum type; |
| }; |
| |
| bool operator<(const ES3FormatCombination& a, const ES3FormatCombination& b) |
| { |
| return memcmp(&a, &b, sizeof(ES3FormatCombination)) < 0; |
| } |
| |
| typedef std::set<ES3FormatCombination> ES3FormatCombinationSet; |
| |
| static inline void InsertES3FormatCombo(ES3FormatCombinationSet *set, GLenum internalFormat, GLenum format, GLenum type) |
| { |
| ES3FormatCombination info; |
| info.internalFormat = internalFormat; |
| info.format = format; |
| info.type = type; |
| set->insert(info); |
| } |
| |
| ES3FormatCombinationSet BuildES3FormatSet() |
| { |
| ES3FormatCombinationSet set; |
| |
| // Format combinations from ES 3.0.1 spec, table 3.2 |
| |
| // | Internal format | Format | Type | |
| // | | | | |
| InsertES3FormatCombo(&set, GL_RGBA8, GL_RGBA, GL_UNSIGNED_BYTE ); |
| InsertES3FormatCombo(&set, GL_RGB5_A1, GL_RGBA, GL_UNSIGNED_BYTE ); |
| InsertES3FormatCombo(&set, GL_RGBA4, GL_RGBA, GL_UNSIGNED_BYTE ); |
| InsertES3FormatCombo(&set, GL_SRGB8_ALPHA8, GL_RGBA, GL_UNSIGNED_BYTE ); |
| InsertES3FormatCombo(&set, GL_RGBA8_SNORM, GL_RGBA, GL_BYTE ); |
| InsertES3FormatCombo(&set, GL_RGBA4, GL_RGBA, GL_UNSIGNED_SHORT_4_4_4_4 ); |
| InsertES3FormatCombo(&set, GL_RGB10_A2, GL_RGBA, GL_UNSIGNED_INT_2_10_10_10_REV ); |
| InsertES3FormatCombo(&set, GL_RGB5_A1, GL_RGBA, GL_UNSIGNED_INT_2_10_10_10_REV ); |
| InsertES3FormatCombo(&set, GL_RGB5_A1, GL_RGBA, GL_UNSIGNED_SHORT_5_5_5_1 ); |
| InsertES3FormatCombo(&set, GL_RGBA16F, GL_RGBA, GL_HALF_FLOAT ); |
| InsertES3FormatCombo(&set, GL_RGBA16F, GL_RGBA, GL_HALF_FLOAT_OES ); |
| InsertES3FormatCombo(&set, GL_RGBA32F, GL_RGBA, GL_FLOAT ); |
| InsertES3FormatCombo(&set, GL_RGBA16F, GL_RGBA, GL_FLOAT ); |
| InsertES3FormatCombo(&set, GL_RGBA8UI, GL_RGBA_INTEGER, GL_UNSIGNED_BYTE ); |
| InsertES3FormatCombo(&set, GL_RGBA8I, GL_RGBA_INTEGER, GL_BYTE ); |
| InsertES3FormatCombo(&set, GL_RGBA16UI, GL_RGBA_INTEGER, GL_UNSIGNED_SHORT ); |
| InsertES3FormatCombo(&set, GL_RGBA16I, GL_RGBA_INTEGER, GL_SHORT ); |
| InsertES3FormatCombo(&set, GL_RGBA32UI, GL_RGBA_INTEGER, GL_UNSIGNED_INT ); |
| InsertES3FormatCombo(&set, GL_RGBA32I, GL_RGBA_INTEGER, GL_INT ); |
| InsertES3FormatCombo(&set, GL_RGB10_A2UI, GL_RGBA_INTEGER, GL_UNSIGNED_INT_2_10_10_10_REV ); |
| InsertES3FormatCombo(&set, GL_RGB8, GL_RGB, GL_UNSIGNED_BYTE ); |
| InsertES3FormatCombo(&set, GL_RGB565, GL_RGB, GL_UNSIGNED_BYTE ); |
| InsertES3FormatCombo(&set, GL_SRGB8, GL_RGB, GL_UNSIGNED_BYTE ); |
| InsertES3FormatCombo(&set, GL_RGB8_SNORM, GL_RGB, GL_BYTE ); |
| InsertES3FormatCombo(&set, GL_RGB565, GL_RGB, GL_UNSIGNED_SHORT_5_6_5 ); |
| InsertES3FormatCombo(&set, GL_R11F_G11F_B10F, GL_RGB, GL_UNSIGNED_INT_10F_11F_11F_REV ); |
| InsertES3FormatCombo(&set, GL_RGB9_E5, GL_RGB, GL_UNSIGNED_INT_5_9_9_9_REV ); |
| InsertES3FormatCombo(&set, GL_RGB16F, GL_RGB, GL_HALF_FLOAT ); |
| InsertES3FormatCombo(&set, GL_RGB16F, GL_RGB, GL_HALF_FLOAT_OES ); |
| InsertES3FormatCombo(&set, GL_R11F_G11F_B10F, GL_RGB, GL_HALF_FLOAT ); |
| InsertES3FormatCombo(&set, GL_R11F_G11F_B10F, GL_RGB, GL_HALF_FLOAT_OES ); |
| InsertES3FormatCombo(&set, GL_RGB9_E5, GL_RGB, GL_HALF_FLOAT ); |
| InsertES3FormatCombo(&set, GL_RGB9_E5, GL_RGB, GL_HALF_FLOAT_OES ); |
| InsertES3FormatCombo(&set, GL_RGB32F, GL_RGB, GL_FLOAT ); |
| InsertES3FormatCombo(&set, GL_RGB16F, GL_RGB, GL_FLOAT ); |
| InsertES3FormatCombo(&set, GL_R11F_G11F_B10F, GL_RGB, GL_FLOAT ); |
| InsertES3FormatCombo(&set, GL_RGB9_E5, GL_RGB, GL_FLOAT ); |
| InsertES3FormatCombo(&set, GL_RGB8UI, GL_RGB_INTEGER, GL_UNSIGNED_BYTE ); |
| InsertES3FormatCombo(&set, GL_RGB8I, GL_RGB_INTEGER, GL_BYTE ); |
| InsertES3FormatCombo(&set, GL_RGB16UI, GL_RGB_INTEGER, GL_UNSIGNED_SHORT ); |
| InsertES3FormatCombo(&set, GL_RGB16I, GL_RGB_INTEGER, GL_SHORT ); |
| InsertES3FormatCombo(&set, GL_RGB32UI, GL_RGB_INTEGER, GL_UNSIGNED_INT ); |
| InsertES3FormatCombo(&set, GL_RGB32I, GL_RGB_INTEGER, GL_INT ); |
| InsertES3FormatCombo(&set, GL_RG8, GL_RG, GL_UNSIGNED_BYTE ); |
| InsertES3FormatCombo(&set, GL_RG8_SNORM, GL_RG, GL_BYTE ); |
| InsertES3FormatCombo(&set, GL_RG16F, GL_RG, GL_HALF_FLOAT ); |
| InsertES3FormatCombo(&set, GL_RG16F, GL_RG, GL_HALF_FLOAT_OES ); |
| InsertES3FormatCombo(&set, GL_RG32F, GL_RG, GL_FLOAT ); |
| InsertES3FormatCombo(&set, GL_RG16F, GL_RG, GL_FLOAT ); |
| InsertES3FormatCombo(&set, GL_RG8UI, GL_RG_INTEGER, GL_UNSIGNED_BYTE ); |
| InsertES3FormatCombo(&set, GL_RG8I, GL_RG_INTEGER, GL_BYTE ); |
| InsertES3FormatCombo(&set, GL_RG16UI, GL_RG_INTEGER, GL_UNSIGNED_SHORT ); |
| InsertES3FormatCombo(&set, GL_RG16I, GL_RG_INTEGER, GL_SHORT ); |
| InsertES3FormatCombo(&set, GL_RG32UI, GL_RG_INTEGER, GL_UNSIGNED_INT ); |
| InsertES3FormatCombo(&set, GL_RG32I, GL_RG_INTEGER, GL_INT ); |
| InsertES3FormatCombo(&set, GL_R8, GL_RED, GL_UNSIGNED_BYTE ); |
| InsertES3FormatCombo(&set, GL_R8_SNORM, GL_RED, GL_BYTE ); |
| InsertES3FormatCombo(&set, GL_R16F, GL_RED, GL_HALF_FLOAT ); |
| InsertES3FormatCombo(&set, GL_R16F, GL_RED, GL_HALF_FLOAT_OES ); |
| InsertES3FormatCombo(&set, GL_R32F, GL_RED, GL_FLOAT ); |
| InsertES3FormatCombo(&set, GL_R16F, GL_RED, GL_FLOAT ); |
| InsertES3FormatCombo(&set, GL_R8UI, GL_RED_INTEGER, GL_UNSIGNED_BYTE ); |
| InsertES3FormatCombo(&set, GL_R8I, GL_RED_INTEGER, GL_BYTE ); |
| InsertES3FormatCombo(&set, GL_R16UI, GL_RED_INTEGER, GL_UNSIGNED_SHORT ); |
| InsertES3FormatCombo(&set, GL_R16I, GL_RED_INTEGER, GL_SHORT ); |
| InsertES3FormatCombo(&set, GL_R32UI, GL_RED_INTEGER, GL_UNSIGNED_INT ); |
| InsertES3FormatCombo(&set, GL_R32I, GL_RED_INTEGER, GL_INT ); |
| |
| // Unsized formats |
| InsertES3FormatCombo(&set, GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE ); |
| InsertES3FormatCombo(&set, GL_RGBA, GL_RGBA, GL_UNSIGNED_SHORT_4_4_4_4 ); |
| InsertES3FormatCombo(&set, GL_RGBA, GL_RGBA, GL_UNSIGNED_SHORT_5_5_5_1 ); |
| InsertES3FormatCombo(&set, GL_RGB, GL_RGB, GL_UNSIGNED_BYTE ); |
| InsertES3FormatCombo(&set, GL_RGB, GL_RGB, GL_UNSIGNED_SHORT_5_6_5 ); |
| InsertES3FormatCombo(&set, GL_LUMINANCE_ALPHA, GL_LUMINANCE_ALPHA, GL_UNSIGNED_BYTE ); |
| InsertES3FormatCombo(&set, GL_LUMINANCE, GL_LUMINANCE, GL_UNSIGNED_BYTE ); |
| InsertES3FormatCombo(&set, GL_ALPHA, GL_ALPHA, GL_UNSIGNED_BYTE ); |
| InsertES3FormatCombo(&set, GL_SRGB_ALPHA_EXT, GL_SRGB_ALPHA_EXT, GL_UNSIGNED_BYTE ); |
| InsertES3FormatCombo(&set, GL_SRGB_EXT, GL_SRGB_EXT, GL_UNSIGNED_BYTE ); |
| |
| // Depth stencil formats |
| InsertES3FormatCombo(&set, GL_DEPTH_COMPONENT16, GL_DEPTH_COMPONENT, GL_UNSIGNED_SHORT ); |
| InsertES3FormatCombo(&set, GL_DEPTH_COMPONENT24, GL_DEPTH_COMPONENT, GL_UNSIGNED_INT ); |
| InsertES3FormatCombo(&set, GL_DEPTH_COMPONENT16, GL_DEPTH_COMPONENT, GL_UNSIGNED_INT ); |
| InsertES3FormatCombo(&set, GL_DEPTH_COMPONENT32F, GL_DEPTH_COMPONENT, GL_FLOAT ); |
| InsertES3FormatCombo(&set, GL_DEPTH24_STENCIL8, GL_DEPTH_STENCIL, GL_UNSIGNED_INT_24_8 ); |
| InsertES3FormatCombo(&set, GL_DEPTH32F_STENCIL8, GL_DEPTH_STENCIL, GL_FLOAT_32_UNSIGNED_INT_24_8_REV); |
| |
| // From GL_EXT_sRGB |
| InsertES3FormatCombo(&set, GL_SRGB8_ALPHA8_EXT, GL_SRGB_ALPHA_EXT, GL_UNSIGNED_BYTE ); |
| InsertES3FormatCombo(&set, GL_SRGB8, GL_SRGB_EXT, GL_UNSIGNED_BYTE ); |
| |
| // From GL_OES_texture_float |
| InsertES3FormatCombo(&set, GL_LUMINANCE_ALPHA, GL_LUMINANCE_ALPHA, GL_FLOAT ); |
| InsertES3FormatCombo(&set, GL_LUMINANCE, GL_LUMINANCE, GL_FLOAT ); |
| InsertES3FormatCombo(&set, GL_ALPHA, GL_ALPHA, GL_FLOAT ); |
| |
| // From GL_OES_texture_half_float |
| InsertES3FormatCombo(&set, GL_LUMINANCE_ALPHA, GL_LUMINANCE_ALPHA, GL_HALF_FLOAT ); |
| InsertES3FormatCombo(&set, GL_LUMINANCE_ALPHA, GL_LUMINANCE_ALPHA, GL_HALF_FLOAT_OES ); |
| InsertES3FormatCombo(&set, GL_LUMINANCE, GL_LUMINANCE, GL_HALF_FLOAT ); |
| InsertES3FormatCombo(&set, GL_LUMINANCE, GL_LUMINANCE, GL_HALF_FLOAT_OES ); |
| InsertES3FormatCombo(&set, GL_ALPHA, GL_ALPHA, GL_HALF_FLOAT ); |
| InsertES3FormatCombo(&set, GL_ALPHA, GL_ALPHA, GL_HALF_FLOAT_OES ); |
| |
| // From GL_EXT_texture_format_BGRA8888 |
| InsertES3FormatCombo(&set, GL_BGRA_EXT, GL_BGRA_EXT, GL_UNSIGNED_BYTE ); |
| |
| // From GL_EXT_texture_storage |
| // | Internal format | Format | Type | |
| // | | | | |
| InsertES3FormatCombo(&set, GL_ALPHA8_EXT, GL_ALPHA, GL_UNSIGNED_BYTE ); |
| InsertES3FormatCombo(&set, GL_LUMINANCE8_EXT, GL_LUMINANCE, GL_UNSIGNED_BYTE ); |
| InsertES3FormatCombo(&set, GL_LUMINANCE8_ALPHA8_EXT, GL_LUMINANCE_ALPHA, GL_UNSIGNED_BYTE ); |
| InsertES3FormatCombo(&set, GL_ALPHA32F_EXT, GL_ALPHA, GL_FLOAT ); |
| InsertES3FormatCombo(&set, GL_LUMINANCE32F_EXT, GL_LUMINANCE, GL_FLOAT ); |
| InsertES3FormatCombo(&set, GL_LUMINANCE_ALPHA32F_EXT, GL_LUMINANCE_ALPHA, GL_FLOAT ); |
| InsertES3FormatCombo(&set, GL_ALPHA16F_EXT, GL_ALPHA, GL_HALF_FLOAT ); |
| InsertES3FormatCombo(&set, GL_ALPHA16F_EXT, GL_ALPHA, GL_HALF_FLOAT_OES ); |
| InsertES3FormatCombo(&set, GL_LUMINANCE16F_EXT, GL_LUMINANCE, GL_HALF_FLOAT ); |
| InsertES3FormatCombo(&set, GL_LUMINANCE16F_EXT, GL_LUMINANCE, GL_HALF_FLOAT_OES ); |
| InsertES3FormatCombo(&set, GL_LUMINANCE_ALPHA16F_EXT, GL_LUMINANCE_ALPHA, GL_HALF_FLOAT ); |
| InsertES3FormatCombo(&set, GL_LUMINANCE_ALPHA16F_EXT, GL_LUMINANCE_ALPHA, GL_HALF_FLOAT_OES ); |
| |
| // From GL_EXT_texture_storage and GL_EXT_texture_format_BGRA8888 |
| InsertES3FormatCombo(&set, GL_BGRA8_EXT, GL_BGRA_EXT, GL_UNSIGNED_BYTE ); |
| InsertES3FormatCombo(&set, GL_BGRA4_ANGLEX, GL_BGRA_EXT, GL_UNSIGNED_SHORT_4_4_4_4_REV_EXT); |
| InsertES3FormatCombo(&set, GL_BGRA4_ANGLEX, GL_BGRA_EXT, GL_UNSIGNED_BYTE ); |
| InsertES3FormatCombo(&set, GL_BGR5_A1_ANGLEX, GL_BGRA_EXT, GL_UNSIGNED_SHORT_1_5_5_5_REV_EXT); |
| InsertES3FormatCombo(&set, GL_BGR5_A1_ANGLEX, GL_BGRA_EXT, GL_UNSIGNED_BYTE ); |
| |
| // From GL_ANGLE_depth_texture |
| InsertES3FormatCombo(&set, GL_DEPTH_COMPONENT32_OES, GL_DEPTH_COMPONENT, GL_UNSIGNED_INT_24_8_OES ); |
| |
| // Compressed formats |
| // From ES 3.0.1 spec, table 3.16 |
| // | Internal format | Format | Type | |
| // | | | | |
| InsertES3FormatCombo(&set, GL_COMPRESSED_R11_EAC, GL_COMPRESSED_R11_EAC, GL_UNSIGNED_BYTE); |
| InsertES3FormatCombo(&set, GL_COMPRESSED_R11_EAC, GL_COMPRESSED_R11_EAC, GL_UNSIGNED_BYTE); |
| InsertES3FormatCombo(&set, GL_COMPRESSED_SIGNED_R11_EAC, GL_COMPRESSED_SIGNED_R11_EAC, GL_UNSIGNED_BYTE); |
| InsertES3FormatCombo(&set, GL_COMPRESSED_RG11_EAC, GL_COMPRESSED_RG11_EAC, GL_UNSIGNED_BYTE); |
| InsertES3FormatCombo(&set, GL_COMPRESSED_SIGNED_RG11_EAC, GL_COMPRESSED_SIGNED_RG11_EAC, GL_UNSIGNED_BYTE); |
| InsertES3FormatCombo(&set, GL_COMPRESSED_RGB8_ETC2, GL_COMPRESSED_RGB8_ETC2, GL_UNSIGNED_BYTE); |
| InsertES3FormatCombo(&set, GL_COMPRESSED_SRGB8_ETC2, GL_COMPRESSED_SRGB8_ETC2, GL_UNSIGNED_BYTE); |
| InsertES3FormatCombo(&set, GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2, GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2, GL_UNSIGNED_BYTE); |
| InsertES3FormatCombo(&set, GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2, GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2, GL_UNSIGNED_BYTE); |
| InsertES3FormatCombo(&set, GL_COMPRESSED_RGBA8_ETC2_EAC, GL_COMPRESSED_RGBA8_ETC2_EAC, GL_UNSIGNED_BYTE); |
| InsertES3FormatCombo(&set, GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC, GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC, GL_UNSIGNED_BYTE); |
| |
| |
| // From GL_EXT_texture_compression_dxt1 |
| InsertES3FormatCombo(&set, GL_COMPRESSED_RGB_S3TC_DXT1_EXT, GL_COMPRESSED_RGB_S3TC_DXT1_EXT, GL_UNSIGNED_BYTE); |
| InsertES3FormatCombo(&set, GL_COMPRESSED_RGBA_S3TC_DXT1_EXT, GL_COMPRESSED_RGBA_S3TC_DXT1_EXT, GL_UNSIGNED_BYTE); |
| |
| // From GL_ANGLE_texture_compression_dxt3 |
| InsertES3FormatCombo(&set, GL_COMPRESSED_RGBA_S3TC_DXT3_ANGLE, GL_COMPRESSED_RGBA_S3TC_DXT3_ANGLE, GL_UNSIGNED_BYTE); |
| |
| // From GL_ANGLE_texture_compression_dxt5 |
| InsertES3FormatCombo(&set, GL_COMPRESSED_RGBA_S3TC_DXT5_ANGLE, GL_COMPRESSED_RGBA_S3TC_DXT5_ANGLE, GL_UNSIGNED_BYTE); |
| |
| return set; |
| } |
| |
| static bool ValidateTexImageFormatCombination(gl::Context *context, GLenum internalFormat, GLenum format, GLenum type) |
| { |
| // Note: dEQP 2013.4 expects an INVALID_VALUE error for TexImage3D with an invalid |
| // internal format. (dEQP-GLES3.functional.negative_api.texture.teximage3d) |
| const gl::InternalFormat &formatInfo = gl::GetInternalFormatInfo(internalFormat); |
| if (!formatInfo.textureSupport(context->getClientVersion(), context->getExtensions())) |
| { |
| return gl::error(GL_INVALID_ENUM, false); |
| } |
| |
| // The type and format are valid if any supported internal format has that type and format |
| bool formatSupported = false; |
| bool typeSupported = false; |
| |
| static const ES3FormatCombinationSet es3FormatSet = BuildES3FormatSet(); |
| for (ES3FormatCombinationSet::const_iterator i = es3FormatSet.begin(); i != es3FormatSet.end(); i++) |
| { |
| if (i->format == format || i->type == type) |
| { |
| const gl::InternalFormat &info = gl::GetInternalFormatInfo(i->internalFormat); |
| bool supported = info.textureSupport(context->getClientVersion(), context->getExtensions()); |
| if (supported && i->type == type) |
| { |
| typeSupported = true; |
| } |
| if (supported && i->format == format) |
| { |
| formatSupported = true; |
| } |
| |
| // Early-out if both type and format are supported now |
| if (typeSupported && formatSupported) |
| { |
| break; |
| } |
| } |
| } |
| |
| if (!typeSupported || !formatSupported) |
| { |
| return gl::error(GL_INVALID_ENUM, false); |
| } |
| |
| // Check if this is a valid format combination to load texture data |
| ES3FormatCombination searchFormat; |
| searchFormat.internalFormat = internalFormat; |
| searchFormat.format = format; |
| searchFormat.type = type; |
| |
| if (es3FormatSet.find(searchFormat) == es3FormatSet.end()) |
| { |
| return gl::error(GL_INVALID_OPERATION, false); |
| } |
| |
| return true; |
| } |
| |
| bool ValidateES3TexImageParameters(gl::Context *context, GLenum target, GLint level, GLenum internalformat, bool isCompressed, bool isSubImage, |
| GLint xoffset, GLint yoffset, GLint zoffset, GLsizei width, GLsizei height, GLsizei depth, |
| GLint border, GLenum format, GLenum type, const GLvoid *pixels) |
| { |
| if (!ValidTexture2DDestinationTarget(context, target)) |
| { |
| return gl::error(GL_INVALID_ENUM, false); |
| } |
| |
| // Validate image size |
| if (!ValidImageSize(context, target, level, width, height, depth)) |
| { |
| return gl::error(GL_INVALID_VALUE, false); |
| } |
| |
| // Verify zero border |
| if (border != 0) |
| { |
| return gl::error(GL_INVALID_VALUE, false); |
| } |
| |
| if (xoffset < 0 || yoffset < 0 || zoffset < 0 || |
| std::numeric_limits<GLsizei>::max() - xoffset < width || |
| std::numeric_limits<GLsizei>::max() - yoffset < height || |
| std::numeric_limits<GLsizei>::max() - zoffset < depth) |
| { |
| return gl::error(GL_INVALID_VALUE, false); |
| } |
| |
| const gl::Caps &caps = context->getCaps(); |
| |
| gl::Texture *texture = NULL; |
| bool textureCompressed = false; |
| GLenum textureInternalFormat = GL_NONE; |
| GLint textureLevelWidth = 0; |
| GLint textureLevelHeight = 0; |
| GLint textureLevelDepth = 0; |
| switch (target) |
| { |
| case GL_TEXTURE_2D: |
| { |
| if (static_cast<GLuint>(width) > (caps.max2DTextureSize >> level) || |
| static_cast<GLuint>(height) > (caps.max2DTextureSize >> level)) |
| { |
| return gl::error(GL_INVALID_VALUE, false); |
| } |
| |
| gl::Texture2D *texture2d = context->getTexture2D(); |
| if (texture2d) |
| { |
| textureCompressed = texture2d->isCompressed(level); |
| textureInternalFormat = texture2d->getInternalFormat(level); |
| textureLevelWidth = texture2d->getWidth(level); |
| textureLevelHeight = texture2d->getHeight(level); |
| textureLevelDepth = 1; |
| texture = texture2d; |
| } |
| } |
| 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 (!isSubImage && width != height) |
| { |
| return gl::error(GL_INVALID_VALUE, false); |
| } |
| |
| if (static_cast<GLuint>(width) > (caps.maxCubeMapTextureSize >> level)) |
| { |
| return gl::error(GL_INVALID_VALUE, false); |
| } |
| |
| gl::TextureCubeMap *textureCube = context->getTextureCubeMap(); |
| if (textureCube) |
| { |
| textureCompressed = textureCube->isCompressed(target, level); |
| textureInternalFormat = textureCube->getInternalFormat(target, level); |
| textureLevelWidth = textureCube->getWidth(target, level); |
| textureLevelHeight = textureCube->getHeight(target, level); |
| textureLevelDepth = 1; |
| texture = textureCube; |
| } |
| } |
| break; |
| |
| case GL_TEXTURE_3D: |
| { |
| if (static_cast<GLuint>(width) > (caps.max3DTextureSize >> level) || |
| static_cast<GLuint>(height) > (caps.max3DTextureSize >> level) || |
| static_cast<GLuint>(depth) > (caps.max3DTextureSize >> level)) |
| { |
| return gl::error(GL_INVALID_VALUE, false); |
| } |
| |
| gl::Texture3D *texture3d = context->getTexture3D(); |
| if (texture3d) |
| { |
| textureCompressed = texture3d->isCompressed(level); |
| textureInternalFormat = texture3d->getInternalFormat(level); |
| textureLevelWidth = texture3d->getWidth(level); |
| textureLevelHeight = texture3d->getHeight(level); |
| textureLevelDepth = texture3d->getDepth(level); |
| texture = texture3d; |
| } |
| } |
| break; |
| |
| case GL_TEXTURE_2D_ARRAY: |
| { |
| if (static_cast<GLuint>(width) > (caps.max2DTextureSize >> level) || |
| static_cast<GLuint>(height) > (caps.max2DTextureSize >> level) || |
| static_cast<GLuint>(depth) > (caps.maxArrayTextureLayers >> level)) |
| { |
| return gl::error(GL_INVALID_VALUE, false); |
| } |
| |
| gl::Texture2DArray *texture2darray = context->getTexture2DArray(); |
| if (texture2darray) |
| { |
| textureCompressed = texture2darray->isCompressed(level); |
| textureInternalFormat = texture2darray->getInternalFormat(level); |
| textureLevelWidth = texture2darray->getWidth(level); |
| textureLevelHeight = texture2darray->getHeight(level); |
| textureLevelDepth = texture2darray->getLayers(level); |
| texture = texture2darray; |
| } |
| } |
| break; |
| |
| default: |
| return gl::error(GL_INVALID_ENUM, false); |
| } |
| |
| if (!texture) |
| { |
| return gl::error(GL_INVALID_OPERATION, false); |
| } |
| |
| if (texture->isImmutable() && !isSubImage) |
| { |
| return gl::error(GL_INVALID_OPERATION, false); |
| } |
| |
| // Validate texture formats |
| GLenum actualInternalFormat = isSubImage ? textureInternalFormat : internalformat; |
| const gl::InternalFormat &actualFormatInfo = gl::GetInternalFormatInfo(actualInternalFormat); |
| if (isCompressed) |
| { |
| if (!ValidCompressedImageSize(context, actualInternalFormat, width, height)) |
| { |
| return gl::error(GL_INVALID_OPERATION, false); |
| } |
| |
| if (!actualFormatInfo.compressed) |
| { |
| return gl::error(GL_INVALID_ENUM, false); |
| } |
| |
| if (target == GL_TEXTURE_3D) |
| { |
| return gl::error(GL_INVALID_OPERATION, false); |
| } |
| } |
| else |
| { |
| if (!ValidateTexImageFormatCombination(context, actualInternalFormat, format, type)) |
| { |
| return false; |
| } |
| |
| if (target == GL_TEXTURE_3D && (format == GL_DEPTH_COMPONENT || format == GL_DEPTH_STENCIL)) |
| { |
| return gl::error(GL_INVALID_OPERATION, false); |
| } |
| } |
| |
| // Validate sub image parameters |
| if (isSubImage) |
| { |
| if (isCompressed != textureCompressed) |
| { |
| return gl::error(GL_INVALID_OPERATION, false); |
| } |
| |
| if (isCompressed) |
| { |
| if ((width % 4 != 0 && width != textureLevelWidth) || |
| (height % 4 != 0 && height != textureLevelHeight)) |
| { |
| return gl::error(GL_INVALID_OPERATION, false); |
| } |
| } |
| |
| if (width == 0 || height == 0 || depth == 0) |
| { |
| return false; |
| } |
| |
| if (xoffset < 0 || yoffset < 0 || zoffset < 0) |
| { |
| return gl::error(GL_INVALID_VALUE, false); |
| } |
| |
| if (std::numeric_limits<GLsizei>::max() - xoffset < width || |
| std::numeric_limits<GLsizei>::max() - yoffset < height || |
| std::numeric_limits<GLsizei>::max() - zoffset < depth) |
| { |
| return gl::error(GL_INVALID_VALUE, false); |
| } |
| |
| if (xoffset + width > textureLevelWidth || |
| yoffset + height > textureLevelHeight || |
| zoffset + depth > textureLevelDepth) |
| { |
| return gl::error(GL_INVALID_VALUE, false); |
| } |
| } |
| |
| // Check for pixel unpack buffer related API errors |
| gl::Buffer *pixelUnpackBuffer = context->getState().getTargetBuffer(GL_PIXEL_UNPACK_BUFFER); |
| if (pixelUnpackBuffer != NULL) |
| { |
| // ...the data would be unpacked from the buffer object such that the memory reads required |
| // would exceed the data store size. |
| size_t widthSize = static_cast<size_t>(width); |
| size_t heightSize = static_cast<size_t>(height); |
| size_t depthSize = static_cast<size_t>(depth); |
| GLenum sizedFormat = GetSizedInternalFormat(actualInternalFormat, type); |
| |
| size_t pixelBytes = static_cast<size_t>(gl::GetInternalFormatInfo(sizedFormat).pixelBytes); |
| |
| if (!rx::IsUnsignedMultiplicationSafe(widthSize, heightSize) || |
| !rx::IsUnsignedMultiplicationSafe(widthSize * heightSize, depthSize) || |
| !rx::IsUnsignedMultiplicationSafe(widthSize * heightSize * depthSize, pixelBytes)) |
| { |
| // Overflow past the end of the buffer |
| return gl::error(GL_INVALID_OPERATION, false); |
| } |
| |
| size_t copyBytes = widthSize * heightSize * depthSize * pixelBytes; |
| size_t offset = reinterpret_cast<size_t>(pixels); |
| |
| if (!rx::IsUnsignedAdditionSafe(offset, copyBytes) || |
| ((offset + copyBytes) > static_cast<size_t>(pixelUnpackBuffer->getSize()))) |
| { |
| // Overflow past the end of the buffer |
| return gl::error(GL_INVALID_OPERATION, false); |
| } |
| |
| // ...data is not evenly divisible into the number of bytes needed to store in memory a datum |
| // indicated by type. |
| size_t dataBytesPerPixel = static_cast<size_t>(gl::GetTypeInfo(type).bytes); |
| |
| if ((offset % dataBytesPerPixel) != 0) |
| { |
| return gl::error(GL_INVALID_OPERATION, false); |
| } |
| |
| // ...the buffer object's data store is currently mapped. |
| if (pixelUnpackBuffer->isMapped()) |
| { |
| return gl::error(GL_INVALID_OPERATION, false); |
| } |
| } |
| |
| return true; |
| } |
| |
| struct EffectiveInternalFormatInfo |
| { |
| GLenum mEffectiveFormat; |
| GLenum mDestFormat; |
| GLuint mMinRedBits; |
| GLuint mMaxRedBits; |
| GLuint mMinGreenBits; |
| GLuint mMaxGreenBits; |
| GLuint mMinBlueBits; |
| GLuint mMaxBlueBits; |
| GLuint mMinAlphaBits; |
| GLuint mMaxAlphaBits; |
| |
| EffectiveInternalFormatInfo(GLenum effectiveFormat, GLenum destFormat, GLuint minRedBits, GLuint maxRedBits, |
| GLuint minGreenBits, GLuint maxGreenBits, GLuint minBlueBits, GLuint maxBlueBits, |
| GLuint minAlphaBits, GLuint maxAlphaBits) |
| : mEffectiveFormat(effectiveFormat), mDestFormat(destFormat), mMinRedBits(minRedBits), |
| mMaxRedBits(maxRedBits), mMinGreenBits(minGreenBits), mMaxGreenBits(maxGreenBits), |
| mMinBlueBits(minBlueBits), mMaxBlueBits(maxBlueBits), mMinAlphaBits(minAlphaBits), |
| mMaxAlphaBits(maxAlphaBits) {}; |
| }; |
| |
| typedef std::vector<EffectiveInternalFormatInfo> EffectiveInternalFormatList; |
| |
| static EffectiveInternalFormatList BuildSizedEffectiveInternalFormatList() |
| { |
| EffectiveInternalFormatList list; |
| |
| // OpenGL ES 3.0.3 Specification, Table 3.17, pg 141: Effective internal format coresponding to destination internal format and |
| // linear source buffer component sizes. |
| // | Source channel min/max sizes | |
| // Effective Internal Format | N/A | R | G | B | A | |
| list.push_back(EffectiveInternalFormatInfo(GL_ALPHA8_EXT, GL_NONE, 0, 0, 0, 0, 0, 0, 1, 8)); |
| list.push_back(EffectiveInternalFormatInfo(GL_R8, GL_NONE, 1, 8, 0, 0, 0, 0, 0, 0)); |
| list.push_back(EffectiveInternalFormatInfo(GL_RG8, GL_NONE, 1, 8, 1, 8, 0, 0, 0, 0)); |
| list.push_back(EffectiveInternalFormatInfo(GL_RGB565, GL_NONE, 1, 5, 1, 6, 1, 5, 0, 0)); |
| list.push_back(EffectiveInternalFormatInfo(GL_RGB8, GL_NONE, 6, 8, 7, 8, 6, 8, 0, 0)); |
| list.push_back(EffectiveInternalFormatInfo(GL_RGBA4, GL_NONE, 1, 4, 1, 4, 1, 4, 1, 4)); |
| list.push_back(EffectiveInternalFormatInfo(GL_RGB5_A1, GL_NONE, 5, 5, 5, 5, 5, 5, 1, 1)); |
| list.push_back(EffectiveInternalFormatInfo(GL_RGBA8, GL_NONE, 5, 8, 5, 8, 5, 8, 2, 8)); |
| list.push_back(EffectiveInternalFormatInfo(GL_RGB10_A2, GL_NONE, 9, 10, 9, 10, 9, 10, 2, 2)); |
| |
| return list; |
| } |
| |
| static EffectiveInternalFormatList BuildUnsizedEffectiveInternalFormatList() |
| { |
| EffectiveInternalFormatList list; |
| |
| // OpenGL ES 3.0.3 Specification, Table 3.17, pg 141: Effective internal format coresponding to destination internal format and |
| // linear source buffer component sizes. |
| // | Source channel min/max sizes | |
| // Effective Internal Format | Dest Format | R | G | B | A | |
| list.push_back(EffectiveInternalFormatInfo(GL_ALPHA8_EXT, GL_ALPHA, 0, UINT_MAX, 0, UINT_MAX, 0, UINT_MAX, 1, 8)); |
| list.push_back(EffectiveInternalFormatInfo(GL_LUMINANCE8_EXT, GL_LUMINANCE, 1, 8, 0, UINT_MAX, 0, UINT_MAX, 0, UINT_MAX)); |
| list.push_back(EffectiveInternalFormatInfo(GL_LUMINANCE8_ALPHA8_EXT, GL_LUMINANCE_ALPHA, 1, 8, 0, UINT_MAX, 0, UINT_MAX, 1, 8)); |
| list.push_back(EffectiveInternalFormatInfo(GL_RGB565, GL_RGB, 1, 5, 1, 6, 1, 5, 0, UINT_MAX)); |
| list.push_back(EffectiveInternalFormatInfo(GL_RGB8, GL_RGB, 6, 8, 7, 8, 6, 8, 0, UINT_MAX)); |
| list.push_back(EffectiveInternalFormatInfo(GL_RGBA4, GL_RGBA, 1, 4, 1, 4, 1, 4, 1, 4)); |
| list.push_back(EffectiveInternalFormatInfo(GL_RGB5_A1, GL_RGBA, 5, 5, 5, 5, 5, 5, 1, 1)); |
| list.push_back(EffectiveInternalFormatInfo(GL_RGBA8, GL_RGBA, 5, 8, 5, 8, 5, 8, 5, 8)); |
| |
| return list; |
| } |
| |
| static bool GetEffectiveInternalFormat(const InternalFormat &srcFormat, const InternalFormat &destFormat, |
| GLenum *outEffectiveFormat) |
| { |
| const EffectiveInternalFormatList *list = NULL; |
| GLenum targetFormat = GL_NONE; |
| |
| if (destFormat.pixelBytes > 0) |
| { |
| static const EffectiveInternalFormatList sizedList = BuildSizedEffectiveInternalFormatList(); |
| list = &sizedList; |
| } |
| else |
| { |
| static const EffectiveInternalFormatList unsizedList = BuildUnsizedEffectiveInternalFormatList(); |
| list = &unsizedList; |
| targetFormat = destFormat.format; |
| } |
| |
| for (size_t curFormat = 0; curFormat < list->size(); ++curFormat) |
| { |
| const EffectiveInternalFormatInfo& formatInfo = list->at(curFormat); |
| if ((formatInfo.mDestFormat == targetFormat) && |
| (formatInfo.mMinRedBits <= srcFormat.redBits && formatInfo.mMaxRedBits >= srcFormat.redBits) && |
| (formatInfo.mMinGreenBits <= srcFormat.greenBits && formatInfo.mMaxGreenBits >= srcFormat.greenBits) && |
| (formatInfo.mMinBlueBits <= srcFormat.blueBits && formatInfo.mMaxBlueBits >= srcFormat.blueBits) && |
| (formatInfo.mMinAlphaBits <= srcFormat.alphaBits && formatInfo.mMaxAlphaBits >= srcFormat.alphaBits)) |
| { |
| *outEffectiveFormat = formatInfo.mEffectiveFormat; |
| return true; |
| } |
| } |
| |
| return false; |
| } |
| |
| struct CopyConversion |
| { |
| GLenum mTextureFormat; |
| GLenum mFramebufferFormat; |
| |
| CopyConversion(GLenum textureFormat, GLenum framebufferFormat) |
| : mTextureFormat(textureFormat), mFramebufferFormat(framebufferFormat) { } |
| |
| bool operator<(const CopyConversion& other) const |
| { |
| return memcmp(this, &other, sizeof(CopyConversion)) < 0; |
| } |
| }; |
| |
| typedef std::set<CopyConversion> CopyConversionSet; |
| |
| static CopyConversionSet BuildValidES3CopyTexImageCombinations() |
| { |
| CopyConversionSet set; |
| |
| // From ES 3.0.1 spec, table 3.15 |
| set.insert(CopyConversion(GL_ALPHA, GL_RGBA)); |
| set.insert(CopyConversion(GL_LUMINANCE, GL_RED)); |
| set.insert(CopyConversion(GL_LUMINANCE, GL_RG)); |
| set.insert(CopyConversion(GL_LUMINANCE, GL_RGB)); |
| set.insert(CopyConversion(GL_LUMINANCE, GL_RGBA)); |
| set.insert(CopyConversion(GL_LUMINANCE_ALPHA, GL_RGBA)); |
| set.insert(CopyConversion(GL_RED, GL_RED)); |
| set.insert(CopyConversion(GL_RED, GL_RG)); |
| set.insert(CopyConversion(GL_RED, GL_RGB)); |
| set.insert(CopyConversion(GL_RED, GL_RGBA)); |
| set.insert(CopyConversion(GL_RG, GL_RG)); |
| set.insert(CopyConversion(GL_RG, GL_RGB)); |
| set.insert(CopyConversion(GL_RG, GL_RGBA)); |
| set.insert(CopyConversion(GL_RGB, GL_RGB)); |
| set.insert(CopyConversion(GL_RGB, GL_RGBA)); |
| set.insert(CopyConversion(GL_RGBA, GL_RGBA)); |
| |
| // Necessary for ANGLE back-buffers |
| set.insert(CopyConversion(GL_ALPHA, GL_BGRA_EXT)); |
| set.insert(CopyConversion(GL_LUMINANCE, GL_BGRA_EXT)); |
| set.insert(CopyConversion(GL_LUMINANCE_ALPHA, GL_BGRA_EXT)); |
| set.insert(CopyConversion(GL_RED, GL_BGRA_EXT)); |
| set.insert(CopyConversion(GL_RG, GL_BGRA_EXT)); |
| set.insert(CopyConversion(GL_RGB, GL_BGRA_EXT)); |
| set.insert(CopyConversion(GL_RGBA, GL_BGRA_EXT)); |
| |
| set.insert(CopyConversion(GL_RED_INTEGER, GL_RED_INTEGER)); |
| set.insert(CopyConversion(GL_RED_INTEGER, GL_RG_INTEGER)); |
| set.insert(CopyConversion(GL_RED_INTEGER, GL_RGB_INTEGER)); |
| set.insert(CopyConversion(GL_RED_INTEGER, GL_RGBA_INTEGER)); |
| set.insert(CopyConversion(GL_RG_INTEGER, GL_RG_INTEGER)); |
| set.insert(CopyConversion(GL_RG_INTEGER, GL_RGB_INTEGER)); |
| set.insert(CopyConversion(GL_RG_INTEGER, GL_RGBA_INTEGER)); |
| set.insert(CopyConversion(GL_RGB_INTEGER, GL_RGB_INTEGER)); |
| set.insert(CopyConversion(GL_RGB_INTEGER, GL_RGBA_INTEGER)); |
| set.insert(CopyConversion(GL_RGBA_INTEGER, GL_RGBA_INTEGER)); |
| |
| return set; |
| } |
| |
| static bool IsValidES3CopyTexImageCombination(GLenum textureInternalFormat, GLenum frameBufferInternalFormat, GLuint readBufferHandle) |
| { |
| const InternalFormat &textureInternalFormatInfo = GetInternalFormatInfo(textureInternalFormat); |
| const InternalFormat &framebufferInternalFormatInfo = GetInternalFormatInfo(frameBufferInternalFormat); |
| |
| static const CopyConversionSet conversionSet = BuildValidES3CopyTexImageCombinations(); |
| if (conversionSet.find(CopyConversion(textureInternalFormatInfo.format, framebufferInternalFormatInfo.format)) != conversionSet.end()) |
| { |
| // Section 3.8.5 of the GLES 3.0.3 spec states that source and destination formats |
| // must both be signed, unsigned, or fixed point and both source and destinations |
| // must be either both SRGB or both not SRGB. EXT_color_buffer_float adds allowed |
| // conversion between fixed and floating point. |
| |
| if ((textureInternalFormatInfo.colorEncoding == GL_SRGB) != (framebufferInternalFormatInfo.colorEncoding == GL_SRGB)) |
| { |
| return false; |
| } |
| |
| if (((textureInternalFormatInfo.componentType == GL_INT) != (framebufferInternalFormatInfo.componentType == GL_INT )) || |
| ((textureInternalFormatInfo.componentType == GL_UNSIGNED_INT) != (framebufferInternalFormatInfo.componentType == GL_UNSIGNED_INT))) |
| { |
| return false; |
| } |
| |
| if ((textureInternalFormatInfo.componentType == GL_UNSIGNED_NORMALIZED || |
| textureInternalFormatInfo.componentType == GL_SIGNED_NORMALIZED || |
| textureInternalFormatInfo.componentType == GL_FLOAT) && |
| !(framebufferInternalFormatInfo.componentType == GL_UNSIGNED_NORMALIZED || |
| framebufferInternalFormatInfo.componentType == GL_SIGNED_NORMALIZED || |
| framebufferInternalFormatInfo.componentType == GL_FLOAT)) |
| { |
| return false; |
| } |
| |
| // GLES specification 3.0.3, sec 3.8.5, pg 139-140: |
| // The effective internal format of the source buffer is determined with the following rules applied in order: |
| // * If the source buffer is a texture or renderbuffer that was created with a sized internal format then the |
| // effective internal format is the source buffer's sized internal format. |
| // * If the source buffer is a texture that was created with an unsized base internal format, then the |
| // effective internal format is the source image array's effective internal format, as specified by table |
| // 3.12, which is determined from the <format> and <type> that were used when the source image array was |
| // specified by TexImage*. |
| // * Otherwise the effective internal format is determined by the row in table 3.17 or 3.18 where |
| // Destination Internal Format matches internalformat and where the [source channel sizes] are consistent |
| // with the values of the source buffer's [channel sizes]. Table 3.17 is used if the |
| // FRAMEBUFFER_ATTACHMENT_ENCODING is LINEAR and table 3.18 is used if the FRAMEBUFFER_ATTACHMENT_ENCODING |
| // is SRGB. |
| const InternalFormat *sourceEffectiveFormat = NULL; |
| if (readBufferHandle != 0) |
| { |
| // Not the default framebuffer, therefore the read buffer must be a user-created texture or renderbuffer |
| if (framebufferInternalFormatInfo.pixelBytes > 0) |
| { |
| sourceEffectiveFormat = &framebufferInternalFormatInfo; |
| } |
| else |
| { |
| // Renderbuffers cannot be created with an unsized internal format, so this must be an unsized-format |
| // texture. We can use the same table we use when creating textures to get its effective sized format. |
| const FormatType &typeInfo = GetFormatTypeInfo(framebufferInternalFormatInfo.format, framebufferInternalFormatInfo.type); |
| sourceEffectiveFormat = &GetInternalFormatInfo(typeInfo.internalFormat); |
| } |
| } |
| else |
| { |
| // The effective internal format must be derived from the source framebuffer's channel sizes. |
| // This is done in GetEffectiveInternalFormat for linear buffers (table 3.17) |
| if (framebufferInternalFormatInfo.colorEncoding == GL_LINEAR) |
| { |
| GLenum effectiveFormat; |
| if (GetEffectiveInternalFormat(framebufferInternalFormatInfo, textureInternalFormatInfo, &effectiveFormat)) |
| { |
| sourceEffectiveFormat = &GetInternalFormatInfo(effectiveFormat); |
| } |
| else |
| { |
| return false; |
| } |
| } |
| else if (framebufferInternalFormatInfo.colorEncoding == GL_SRGB) |
| { |
| // SRGB buffers can only be copied to sized format destinations according to table 3.18 |
| if ((textureInternalFormatInfo.pixelBytes > 0) && |
| (framebufferInternalFormatInfo.redBits >= 1 && framebufferInternalFormatInfo.redBits <= 8) && |
| (framebufferInternalFormatInfo.greenBits >= 1 && framebufferInternalFormatInfo.greenBits <= 8) && |
| (framebufferInternalFormatInfo.blueBits >= 1 && framebufferInternalFormatInfo.blueBits <= 8) && |
| (framebufferInternalFormatInfo.alphaBits >= 1 && framebufferInternalFormatInfo.alphaBits <= 8)) |
| { |
| sourceEffectiveFormat = &GetInternalFormatInfo(GL_SRGB8_ALPHA8); |
| } |
| else |
| { |
| return false; |
| } |
| } |
| else |
| { |
| UNREACHABLE(); |
| return false; |
| } |
| } |
| |
| if (textureInternalFormatInfo.pixelBytes > 0) |
| { |
| // Section 3.8.5 of the GLES 3.0.3 spec, pg 139, requires that, if the destination format is sized, |
| // component sizes of the source and destination formats must exactly match |
| if (textureInternalFormatInfo.redBits != sourceEffectiveFormat->redBits || |
| textureInternalFormatInfo.greenBits != sourceEffectiveFormat->greenBits || |
| textureInternalFormatInfo.blueBits != sourceEffectiveFormat->blueBits || |
| textureInternalFormatInfo.alphaBits != sourceEffectiveFormat->alphaBits) |
| { |
| return false; |
| } |
| } |
| |
| |
| return true; // A conversion function exists, and no rule in the specification has precluded conversion |
| // between these formats. |
| } |
| |
| return false; |
| } |
| |
| bool ValidateES3CopyTexImageParameters(gl::Context *context, GLenum target, GLint level, GLenum internalformat, |
| bool isSubImage, GLint xoffset, GLint yoffset, GLint zoffset, |
| GLint x, GLint y, GLsizei width, GLsizei height, GLint border) |
| { |
| GLenum textureInternalFormat; |
| if (!ValidateCopyTexImageParametersBase(context, target, level, internalformat, isSubImage, |
| xoffset, yoffset, zoffset, x, y, width, height, |
| border, &textureInternalFormat)) |
| { |
| return false; |
| } |
| |
| gl::Framebuffer *framebuffer = context->getState().getReadFramebuffer(); |
| |
| if (framebuffer->completeness() != GL_FRAMEBUFFER_COMPLETE) |
| { |
| return gl::error(GL_INVALID_FRAMEBUFFER_OPERATION, false); |
| } |
| |
| if (context->getState().getReadFramebuffer()->id() != 0 && framebuffer->getSamples() != 0) |
| { |
| return gl::error(GL_INVALID_OPERATION, false); |
| } |
| |
| gl::FramebufferAttachment *source = framebuffer->getReadColorbuffer(); |
| GLenum colorbufferInternalFormat = source->getInternalFormat(); |
| |
| if (isSubImage) |
| { |
| if (!IsValidES3CopyTexImageCombination(textureInternalFormat, colorbufferInternalFormat, |
| context->getState().getReadFramebuffer()->id())) |
| { |
| return gl::error(GL_INVALID_OPERATION, false); |
| } |
| } |
| else |
| { |
| if (!gl::IsValidES3CopyTexImageCombination(internalformat, colorbufferInternalFormat, |
| context->getState().getReadFramebuffer()->id())) |
| { |
| return gl::error(GL_INVALID_OPERATION, false); |
| } |
| } |
| |
| // If width or height is zero, it is a no-op. Return false without setting an error. |
| return (width > 0 && height > 0); |
| } |
| |
| bool ValidateES3TexStorageParameters(gl::Context *context, GLenum target, GLsizei levels, GLenum internalformat, |
| GLsizei width, GLsizei height, GLsizei depth) |
| { |
| if (width < 1 || height < 1 || depth < 1 || levels < 1) |
| { |
| return gl::error(GL_INVALID_VALUE, false); |
| } |
| |
| if (levels > gl::log2(std::max(std::max(width, height), depth)) + 1) |
| { |
| return gl::error(GL_INVALID_OPERATION, false); |
| } |
| |
| const gl::Caps &caps = context->getCaps(); |
| |
| gl::Texture *texture = NULL; |
| switch (target) |
| { |
| case GL_TEXTURE_2D: |
| { |
| texture = context->getTexture2D(); |
| |
| if (static_cast<GLuint>(width) > caps.max2DTextureSize || |
| static_cast<GLuint>(height) > caps.max2DTextureSize) |
| { |
| return gl::error(GL_INVALID_VALUE, false); |
| } |
| } |
| break; |
| |
| case GL_TEXTURE_CUBE_MAP: |
| { |
| texture = context->getTextureCubeMap(); |
| |
| if (width != height) |
| { |
| return gl::error(GL_INVALID_VALUE, false); |
| } |
| |
| if (static_cast<GLuint>(width) > caps.maxCubeMapTextureSize) |
| { |
| return gl::error(GL_INVALID_VALUE, false); |
| } |
| } |
| break; |
| |
| case GL_TEXTURE_3D: |
| { |
| texture = context->getTexture3D(); |
| |
| if (static_cast<GLuint>(width) > caps.max3DTextureSize || |
| static_cast<GLuint>(height) > caps.max3DTextureSize || |
| static_cast<GLuint>(depth) > caps.max3DTextureSize) |
| { |
| return gl::error(GL_INVALID_VALUE, false); |
| } |
| } |
| break; |
| |
| case GL_TEXTURE_2D_ARRAY: |
| { |
| texture = context->getTexture2DArray(); |
| |
| if (static_cast<GLuint>(width) > caps.max2DTextureSize || |
| static_cast<GLuint>(height) > caps.max2DTextureSize || |
| static_cast<GLuint>(depth) > caps.maxArrayTextureLayers) |
| { |
| return gl::error(GL_INVALID_VALUE, false); |
| } |
| } |
| break; |
| |
| default: |
| return gl::error(GL_INVALID_ENUM, false); |
| } |
| |
| if (!texture || texture->id() == 0) |
| { |
| return gl::error(GL_INVALID_OPERATION, false); |
| } |
| |
| if (texture->isImmutable()) |
| { |
| return gl::error(GL_INVALID_OPERATION, false); |
| } |
| |
| const gl::InternalFormat &formatInfo = gl::GetInternalFormatInfo(internalformat); |
| if (!formatInfo.textureSupport(context->getClientVersion(), context->getExtensions())) |
| { |
| return gl::error(GL_INVALID_ENUM, false); |
| } |
| |
| if (formatInfo.pixelBytes == 0) |
| { |
| return gl::error(GL_INVALID_ENUM, false); |
| } |
| |
| return true; |
| } |
| |
| bool ValidateFramebufferTextureLayer(const gl::Context *context, GLenum target, GLenum attachment, |
| GLuint texture, GLint level, GLint layer) |
| { |
| if (context->getClientVersion() < 3) |
| { |
| return gl::error(GL_INVALID_OPERATION, false); |
| } |
| |
| if (layer < 0) |
| { |
| return gl::error(GL_INVALID_VALUE, false); |
| } |
| |
| if (!ValidateFramebufferTextureBase(context, target, attachment, texture, level)) |
| { |
| return false; |
| } |
| |
| const gl::Caps &caps = context->getCaps(); |
| if (texture != 0) |
| { |
| gl::Texture *tex = context->getTexture(texture); |
| ASSERT(tex); |
| |
| switch (tex->getTarget()) |
| { |
| case GL_TEXTURE_2D_ARRAY: |
| { |
| if (level > gl::log2(caps.max2DTextureSize)) |
| { |
| return gl::error(GL_INVALID_VALUE, false); |
| } |
| |
| if (static_cast<GLuint>(layer) >= caps.maxArrayTextureLayers) |
| { |
| return gl::error(GL_INVALID_VALUE, false); |
| } |
| |
| gl::Texture2DArray *texArray = static_cast<gl::Texture2DArray *>(tex); |
| if (texArray->isCompressed(level)) |
| { |
| return gl::error(GL_INVALID_OPERATION, false); |
| } |
| } |
| break; |
| |
| case GL_TEXTURE_3D: |
| { |
| if (level > gl::log2(caps.max3DTextureSize)) |
| { |
| return gl::error(GL_INVALID_VALUE, false); |
| } |
| |
| if (static_cast<GLuint>(layer) >= caps.max3DTextureSize) |
| { |
| return gl::error(GL_INVALID_VALUE, false); |
| } |
| |
| gl::Texture3D *tex3d = static_cast<gl::Texture3D *>(tex); |
| if (tex3d->isCompressed(level)) |
| { |
| return gl::error(GL_INVALID_OPERATION, false); |
| } |
| } |
| break; |
| |
| default: |
| return gl::error(GL_INVALID_OPERATION, false); |
| } |
| } |
| |
| return true; |
| } |
| |
| bool ValidES3ReadFormatType(gl::Context *context, GLenum internalFormat, GLenum format, GLenum type) |
| { |
| const gl::InternalFormat &internalFormatInfo = gl::GetInternalFormatInfo(internalFormat); |
| |
| switch (format) |
| { |
| case GL_RGBA: |
| switch (type) |
| { |
| case GL_UNSIGNED_BYTE: |
| break; |
| case GL_UNSIGNED_INT_2_10_10_10_REV: |
| if (internalFormat != GL_RGB10_A2) |
| { |
| return false; |
| } |
| break; |
| case GL_FLOAT: |
| if (internalFormatInfo.componentType != GL_FLOAT) |
| { |
| return false; |
| } |
| break; |
| default: |
| return false; |
| } |
| break; |
| case GL_RGBA_INTEGER: |
| switch (type) |
| { |
| case GL_INT: |
| if (internalFormatInfo.componentType != GL_INT) |
| { |
| return false; |
| } |
| break; |
| case GL_UNSIGNED_INT: |
| if (internalFormatInfo.componentType != GL_UNSIGNED_INT) |
| { |
| return false; |
| } |
| break; |
| default: |
| return false; |
| } |
| break; |
| case GL_BGRA_EXT: |
| switch (type) |
| { |
| case GL_UNSIGNED_BYTE: |
| case GL_UNSIGNED_SHORT_4_4_4_4_REV_EXT: |
| case GL_UNSIGNED_SHORT_1_5_5_5_REV_EXT: |
| break; |
| default: |
| return false; |
| } |
| break; |
| case GL_RG_EXT: |
| case GL_RED_EXT: |
| if (!context->getExtensions().textureRG) |
| { |
| return false; |
| } |
| switch (type) |
| { |
| case GL_UNSIGNED_BYTE: |
| break; |
| default: |
| return false; |
| } |
| break; |
| default: |
| return false; |
| } |
| return true; |
| } |
| |
| bool ValidateInvalidateFramebufferParameters(gl::Context *context, GLenum target, GLsizei numAttachments, |
| const GLenum* attachments) |
| { |
| bool defaultFramebuffer = false; |
| |
| switch (target) |
| { |
| case GL_DRAW_FRAMEBUFFER: |
| case GL_FRAMEBUFFER: |
| defaultFramebuffer = context->getState().getDrawFramebuffer()->id() == 0; |
| break; |
| case GL_READ_FRAMEBUFFER: |
| defaultFramebuffer = context->getState().getReadFramebuffer()->id() == 0; |
| break; |
| default: |
| return gl::error(GL_INVALID_ENUM, false); |
| } |
| |
| for (int i = 0; i < numAttachments; ++i) |
| { |
| if (attachments[i] >= GL_COLOR_ATTACHMENT0 && attachments[i] <= GL_COLOR_ATTACHMENT15) |
| { |
| if (defaultFramebuffer) |
| { |
| return gl::error(GL_INVALID_ENUM, false); |
| } |
| |
| if (attachments[i] >= GL_COLOR_ATTACHMENT0 + context->getCaps().maxColorAttachments) |
| { |
| return gl::error(GL_INVALID_OPERATION, false); |
| } |
| } |
| else |
| { |
| switch (attachments[i]) |
| { |
| case GL_DEPTH_ATTACHMENT: |
| case GL_STENCIL_ATTACHMENT: |
| case GL_DEPTH_STENCIL_ATTACHMENT: |
| if (defaultFramebuffer) |
| { |
| return gl::error(GL_INVALID_ENUM, false); |
| } |
| break; |
| case GL_COLOR: |
| case GL_DEPTH: |
| case GL_STENCIL: |
| if (!defaultFramebuffer) |
| { |
| return gl::error(GL_INVALID_ENUM, false); |
| } |
| break; |
| default: |
| return gl::error(GL_INVALID_ENUM, false); |
| } |
| } |
| } |
| |
| return true; |
| } |
| |
| bool ValidateClearBuffer(const gl::Context *context) |
| { |
| if (context->getClientVersion() < 3) |
| { |
| return gl::error(GL_INVALID_OPERATION, false); |
| } |
| |
| const gl::Framebuffer *fbo = context->getState().getDrawFramebuffer(); |
| if (!fbo || fbo->completeness() != GL_FRAMEBUFFER_COMPLETE) |
| { |
| return gl::error(GL_INVALID_FRAMEBUFFER_OPERATION, false); |
| } |
| |
| return true; |
| } |
| |
| bool ValidateGetUniformuiv(const gl::Context *context, GLuint program, GLint location, GLuint* params) |
| { |
| if (context->getClientVersion() < 3) |
| { |
| return gl::error(GL_INVALID_OPERATION, false); |
| } |
| |
| return ValidateGetUniformBase(context, program, location); |
| } |
| |
| } |
