| /* |
| * Copyright (C) 2009 Apple Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY |
| * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR |
| * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY |
| * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #ifndef GraphicsContext3D_h |
| #define GraphicsContext3D_h |
| |
| #include "PlatformString.h" |
| |
| #include <wtf/ListHashSet.h> |
| #include <wtf/Noncopyable.h> |
| #include <wtf/PassOwnPtr.h> |
| |
| // FIXME: Find a better way to avoid the name confliction for NO_ERROR. |
| #if ((PLATFORM(CHROMIUM) && OS(WINDOWS)) || PLATFORM(WIN)) |
| #undef NO_ERROR |
| #endif |
| |
| #if PLATFORM(MAC) |
| #include <OpenGL/OpenGL.h> |
| |
| typedef void* PlatformGraphicsContext3D; |
| const PlatformGraphicsContext3D NullPlatformGraphicsContext3D = 0; |
| typedef GLuint Platform3DObject; |
| const Platform3DObject NullPlatform3DObject = 0; |
| #elif PLATFORM(QT) |
| #include <QtOpenGL/QtOpenGL> |
| |
| typedef void* PlatformGraphicsContext3D; |
| const PlatformGraphicsContext3D NullPlatformGraphicsContext3D = 0; |
| typedef int Platform3DObject; |
| const Platform3DObject NullPlatform3DObject = 0; |
| #else |
| typedef void* PlatformGraphicsContext3D; |
| const PlatformGraphicsContext3D NullPlatformGraphicsContext3D = 0; |
| typedef int Platform3DObject; |
| const Platform3DObject NullPlatform3DObject = 0; |
| #endif |
| |
| namespace WebCore { |
| class WebGLActiveInfo; |
| class WebGLArray; |
| class WebGLBuffer; |
| class WebGLUnsignedByteArray; |
| class WebGLFloatArray; |
| class WebGLFramebuffer; |
| class WebGLIntArray; |
| class WebGLProgram; |
| class WebGLRenderbuffer; |
| class WebGLRenderingContext; |
| class WebGLShader; |
| class WebGLTexture; |
| class Image; |
| class ImageData; |
| |
| struct ActiveInfo { |
| String name; |
| unsigned type; |
| int size; |
| }; |
| |
| // FIXME: ideally this would be used on all platforms. |
| #if PLATFORM(CHROMIUM) || PLATFORM(QT) |
| class GraphicsContext3DInternal; |
| #endif |
| |
| class GraphicsContext3D : public Noncopyable { |
| public: |
| enum WebGLEnumType { |
| DEPTH_BUFFER_BIT = 0x00000100, |
| STENCIL_BUFFER_BIT = 0x00000400, |
| COLOR_BUFFER_BIT = 0x00004000, |
| POINTS = 0x0000, |
| LINES = 0x0001, |
| LINE_LOOP = 0x0002, |
| LINE_STRIP = 0x0003, |
| TRIANGLES = 0x0004, |
| TRIANGLE_STRIP = 0x0005, |
| TRIANGLE_FAN = 0x0006, |
| ZERO = 0, |
| ONE = 1, |
| SRC_COLOR = 0x0300, |
| ONE_MINUS_SRC_COLOR = 0x0301, |
| SRC_ALPHA = 0x0302, |
| ONE_MINUS_SRC_ALPHA = 0x0303, |
| DST_ALPHA = 0x0304, |
| ONE_MINUS_DST_ALPHA = 0x0305, |
| DST_COLOR = 0x0306, |
| ONE_MINUS_DST_COLOR = 0x0307, |
| SRC_ALPHA_SATURATE = 0x0308, |
| FUNC_ADD = 0x8006, |
| BLEND_EQUATION = 0x8009, |
| BLEND_EQUATION_RGB = 0x8009, |
| BLEND_EQUATION_ALPHA = 0x883D, |
| FUNC_SUBTRACT = 0x800A, |
| FUNC_REVERSE_SUBTRACT = 0x800B, |
| BLEND_DST_RGB = 0x80C8, |
| BLEND_SRC_RGB = 0x80C9, |
| BLEND_DST_ALPHA = 0x80CA, |
| BLEND_SRC_ALPHA = 0x80CB, |
| CONSTANT_COLOR = 0x8001, |
| ONE_MINUS_CONSTANT_COLOR = 0x8002, |
| CONSTANT_ALPHA = 0x8003, |
| ONE_MINUS_CONSTANT_ALPHA = 0x8004, |
| BLEND_COLOR = 0x8005, |
| ARRAY_BUFFER = 0x8892, |
| ELEMENT_ARRAY_BUFFER = 0x8893, |
| ARRAY_BUFFER_BINDING = 0x8894, |
| ELEMENT_ARRAY_BUFFER_BINDING = 0x8895, |
| STREAM_DRAW = 0x88E0, |
| STATIC_DRAW = 0x88E4, |
| DYNAMIC_DRAW = 0x88E8, |
| BUFFER_SIZE = 0x8764, |
| BUFFER_USAGE = 0x8765, |
| CURRENT_VERTEX_ATTRIB = 0x8626, |
| FRONT = 0x0404, |
| BACK = 0x0405, |
| FRONT_AND_BACK = 0x0408, |
| TEXTURE_2D = 0x0DE1, |
| CULL_FACE = 0x0B44, |
| BLEND = 0x0BE2, |
| DITHER = 0x0BD0, |
| STENCIL_TEST = 0x0B90, |
| DEPTH_TEST = 0x0B71, |
| SCISSOR_TEST = 0x0C11, |
| POLYGON_OFFSET_FILL = 0x8037, |
| SAMPLE_ALPHA_TO_COVERAGE = 0x809E, |
| SAMPLE_COVERAGE = 0x80A0, |
| NO_ERROR = 0, |
| INVALID_ENUM = 0x0500, |
| INVALID_VALUE = 0x0501, |
| INVALID_OPERATION = 0x0502, |
| OUT_OF_MEMORY = 0x0505, |
| CW = 0x0900, |
| CCW = 0x0901, |
| LINE_WIDTH = 0x0B21, |
| ALIASED_POINT_SIZE_RANGE = 0x846D, |
| ALIASED_LINE_WIDTH_RANGE = 0x846E, |
| CULL_FACE_MODE = 0x0B45, |
| FRONT_FACE = 0x0B46, |
| DEPTH_RANGE = 0x0B70, |
| DEPTH_WRITEMASK = 0x0B72, |
| DEPTH_CLEAR_VALUE = 0x0B73, |
| DEPTH_FUNC = 0x0B74, |
| STENCIL_CLEAR_VALUE = 0x0B91, |
| STENCIL_FUNC = 0x0B92, |
| STENCIL_FAIL = 0x0B94, |
| STENCIL_PASS_DEPTH_FAIL = 0x0B95, |
| STENCIL_PASS_DEPTH_PASS = 0x0B96, |
| STENCIL_REF = 0x0B97, |
| STENCIL_VALUE_MASK = 0x0B93, |
| STENCIL_WRITEMASK = 0x0B98, |
| STENCIL_BACK_FUNC = 0x8800, |
| STENCIL_BACK_FAIL = 0x8801, |
| STENCIL_BACK_PASS_DEPTH_FAIL = 0x8802, |
| STENCIL_BACK_PASS_DEPTH_PASS = 0x8803, |
| STENCIL_BACK_REF = 0x8CA3, |
| STENCIL_BACK_VALUE_MASK = 0x8CA4, |
| STENCIL_BACK_WRITEMASK = 0x8CA5, |
| VIEWPORT = 0x0BA2, |
| SCISSOR_BOX = 0x0C10, |
| COLOR_CLEAR_VALUE = 0x0C22, |
| COLOR_WRITEMASK = 0x0C23, |
| UNPACK_ALIGNMENT = 0x0CF5, |
| PACK_ALIGNMENT = 0x0D05, |
| MAX_TEXTURE_SIZE = 0x0D33, |
| MAX_VIEWPORT_DIMS = 0x0D3A, |
| SUBPIXEL_BITS = 0x0D50, |
| RED_BITS = 0x0D52, |
| GREEN_BITS = 0x0D53, |
| BLUE_BITS = 0x0D54, |
| ALPHA_BITS = 0x0D55, |
| DEPTH_BITS = 0x0D56, |
| STENCIL_BITS = 0x0D57, |
| POLYGON_OFFSET_UNITS = 0x2A00, |
| POLYGON_OFFSET_FACTOR = 0x8038, |
| TEXTURE_BINDING_2D = 0x8069, |
| SAMPLE_BUFFERS = 0x80A8, |
| SAMPLES = 0x80A9, |
| SAMPLE_COVERAGE_VALUE = 0x80AA, |
| SAMPLE_COVERAGE_INVERT = 0x80AB, |
| NUM_COMPRESSED_TEXTURE_FORMATS = 0x86A2, |
| COMPRESSED_TEXTURE_FORMATS = 0x86A3, |
| DONT_CARE = 0x1100, |
| FASTEST = 0x1101, |
| NICEST = 0x1102, |
| GENERATE_MIPMAP_HINT = 0x8192, |
| BYTE = 0x1400, |
| UNSIGNED_BYTE = 0x1401, |
| SHORT = 0x1402, |
| UNSIGNED_SHORT = 0x1403, |
| INT = 0x1404, |
| UNSIGNED_INT = 0x1405, |
| FLOAT = 0x1406, |
| FIXED = 0x140C, |
| DEPTH_COMPONENT = 0x1902, |
| ALPHA = 0x1906, |
| RGB = 0x1907, |
| RGBA = 0x1908, |
| LUMINANCE = 0x1909, |
| LUMINANCE_ALPHA = 0x190A, |
| UNSIGNED_SHORT_4_4_4_4 = 0x8033, |
| UNSIGNED_SHORT_5_5_5_1 = 0x8034, |
| UNSIGNED_SHORT_5_6_5 = 0x8363, |
| FRAGMENT_SHADER = 0x8B30, |
| VERTEX_SHADER = 0x8B31, |
| MAX_VERTEX_ATTRIBS = 0x8869, |
| MAX_VERTEX_UNIFORM_VECTORS = 0x8DFB, |
| MAX_VARYING_VECTORS = 0x8DFC, |
| MAX_COMBINED_TEXTURE_IMAGE_UNITS = 0x8B4D, |
| MAX_VERTEX_TEXTURE_IMAGE_UNITS = 0x8B4C, |
| MAX_TEXTURE_IMAGE_UNITS = 0x8872, |
| MAX_FRAGMENT_UNIFORM_VECTORS = 0x8DFD, |
| SHADER_TYPE = 0x8B4F, |
| DELETE_STATUS = 0x8B80, |
| LINK_STATUS = 0x8B82, |
| VALIDATE_STATUS = 0x8B83, |
| ATTACHED_SHADERS = 0x8B85, |
| ACTIVE_UNIFORMS = 0x8B86, |
| ACTIVE_UNIFORM_MAX_LENGTH = 0x8B87, |
| ACTIVE_ATTRIBUTES = 0x8B89, |
| ACTIVE_ATTRIBUTE_MAX_LENGTH = 0x8B8A, |
| SHADING_LANGUAGE_VERSION = 0x8B8C, |
| CURRENT_PROGRAM = 0x8B8D, |
| NEVER = 0x0200, |
| LESS = 0x0201, |
| EQUAL = 0x0202, |
| LEQUAL = 0x0203, |
| GREATER = 0x0204, |
| NOTEQUAL = 0x0205, |
| GEQUAL = 0x0206, |
| ALWAYS = 0x0207, |
| KEEP = 0x1E00, |
| REPLACE = 0x1E01, |
| INCR = 0x1E02, |
| DECR = 0x1E03, |
| INVERT = 0x150A, |
| INCR_WRAP = 0x8507, |
| DECR_WRAP = 0x8508, |
| VENDOR = 0x1F00, |
| RENDERER = 0x1F01, |
| VERSION = 0x1F02, |
| EXTENSIONS = 0x1F03, |
| NEAREST = 0x2600, |
| LINEAR = 0x2601, |
| NEAREST_MIPMAP_NEAREST = 0x2700, |
| LINEAR_MIPMAP_NEAREST = 0x2701, |
| NEAREST_MIPMAP_LINEAR = 0x2702, |
| LINEAR_MIPMAP_LINEAR = 0x2703, |
| TEXTURE_MAG_FILTER = 0x2800, |
| TEXTURE_MIN_FILTER = 0x2801, |
| TEXTURE_WRAP_S = 0x2802, |
| TEXTURE_WRAP_T = 0x2803, |
| TEXTURE = 0x1702, |
| TEXTURE_CUBE_MAP = 0x8513, |
| TEXTURE_BINDING_CUBE_MAP = 0x8514, |
| TEXTURE_CUBE_MAP_POSITIVE_X = 0x8515, |
| TEXTURE_CUBE_MAP_NEGATIVE_X = 0x8516, |
| TEXTURE_CUBE_MAP_POSITIVE_Y = 0x8517, |
| TEXTURE_CUBE_MAP_NEGATIVE_Y = 0x8518, |
| TEXTURE_CUBE_MAP_POSITIVE_Z = 0x8519, |
| TEXTURE_CUBE_MAP_NEGATIVE_Z = 0x851A, |
| MAX_CUBE_MAP_TEXTURE_SIZE = 0x851C, |
| TEXTURE0 = 0x84C0, |
| TEXTURE1 = 0x84C1, |
| TEXTURE2 = 0x84C2, |
| TEXTURE3 = 0x84C3, |
| TEXTURE4 = 0x84C4, |
| TEXTURE5 = 0x84C5, |
| TEXTURE6 = 0x84C6, |
| TEXTURE7 = 0x84C7, |
| TEXTURE8 = 0x84C8, |
| TEXTURE9 = 0x84C9, |
| TEXTURE10 = 0x84CA, |
| TEXTURE11 = 0x84CB, |
| TEXTURE12 = 0x84CC, |
| TEXTURE13 = 0x84CD, |
| TEXTURE14 = 0x84CE, |
| TEXTURE15 = 0x84CF, |
| TEXTURE16 = 0x84D0, |
| TEXTURE17 = 0x84D1, |
| TEXTURE18 = 0x84D2, |
| TEXTURE19 = 0x84D3, |
| TEXTURE20 = 0x84D4, |
| TEXTURE21 = 0x84D5, |
| TEXTURE22 = 0x84D6, |
| TEXTURE23 = 0x84D7, |
| TEXTURE24 = 0x84D8, |
| TEXTURE25 = 0x84D9, |
| TEXTURE26 = 0x84DA, |
| TEXTURE27 = 0x84DB, |
| TEXTURE28 = 0x84DC, |
| TEXTURE29 = 0x84DD, |
| TEXTURE30 = 0x84DE, |
| TEXTURE31 = 0x84DF, |
| ACTIVE_TEXTURE = 0x84E0, |
| REPEAT = 0x2901, |
| CLAMP_TO_EDGE = 0x812F, |
| MIRRORED_REPEAT = 0x8370, |
| FLOAT_VEC2 = 0x8B50, |
| FLOAT_VEC3 = 0x8B51, |
| FLOAT_VEC4 = 0x8B52, |
| INT_VEC2 = 0x8B53, |
| INT_VEC3 = 0x8B54, |
| INT_VEC4 = 0x8B55, |
| BOOL = 0x8B56, |
| BOOL_VEC2 = 0x8B57, |
| BOOL_VEC3 = 0x8B58, |
| BOOL_VEC4 = 0x8B59, |
| FLOAT_MAT2 = 0x8B5A, |
| FLOAT_MAT3 = 0x8B5B, |
| FLOAT_MAT4 = 0x8B5C, |
| SAMPLER_2D = 0x8B5E, |
| SAMPLER_CUBE = 0x8B60, |
| VERTEX_ATTRIB_ARRAY_ENABLED = 0x8622, |
| VERTEX_ATTRIB_ARRAY_SIZE = 0x8623, |
| VERTEX_ATTRIB_ARRAY_STRIDE = 0x8624, |
| VERTEX_ATTRIB_ARRAY_TYPE = 0x8625, |
| VERTEX_ATTRIB_ARRAY_NORMALIZED = 0x886A, |
| VERTEX_ATTRIB_ARRAY_POINTER = 0x8645, |
| VERTEX_ATTRIB_ARRAY_BUFFER_BINDING = 0x889F, |
| IMPLEMENTATION_COLOR_READ_TYPE = 0x8B9A, |
| IMPLEMENTATION_COLOR_READ_FORMAT = 0x8B9B, |
| COMPILE_STATUS = 0x8B81, |
| INFO_LOG_LENGTH = 0x8B84, |
| SHADER_SOURCE_LENGTH = 0x8B88, |
| SHADER_COMPILER = 0x8DFA, |
| SHADER_BINARY_FORMATS = 0x8DF8, |
| NUM_SHADER_BINARY_FORMATS = 0x8DF9, |
| LOW_FLOAT = 0x8DF0, |
| MEDIUM_FLOAT = 0x8DF1, |
| HIGH_FLOAT = 0x8DF2, |
| LOW_INT = 0x8DF3, |
| MEDIUM_INT = 0x8DF4, |
| HIGH_INT = 0x8DF5, |
| FRAMEBUFFER = 0x8D40, |
| RENDERBUFFER = 0x8D41, |
| RGBA4 = 0x8056, |
| RGB5_A1 = 0x8057, |
| RGB565 = 0x8D62, |
| DEPTH_COMPONENT16 = 0x81A5, |
| STENCIL_INDEX = 0x1901, |
| STENCIL_INDEX8 = 0x8D48, |
| RENDERBUFFER_WIDTH = 0x8D42, |
| RENDERBUFFER_HEIGHT = 0x8D43, |
| RENDERBUFFER_INTERNAL_FORMAT = 0x8D44, |
| RENDERBUFFER_RED_SIZE = 0x8D50, |
| RENDERBUFFER_GREEN_SIZE = 0x8D51, |
| RENDERBUFFER_BLUE_SIZE = 0x8D52, |
| RENDERBUFFER_ALPHA_SIZE = 0x8D53, |
| RENDERBUFFER_DEPTH_SIZE = 0x8D54, |
| RENDERBUFFER_STENCIL_SIZE = 0x8D55, |
| FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE = 0x8CD0, |
| FRAMEBUFFER_ATTACHMENT_OBJECT_NAME = 0x8CD1, |
| FRAMEBUFFER_ATTACHMENT_TEXTURE_LEVEL = 0x8CD2, |
| FRAMEBUFFER_ATTACHMENT_TEXTURE_CUBE_MAP_FACE = 0x8CD3, |
| COLOR_ATTACHMENT0 = 0x8CE0, |
| DEPTH_ATTACHMENT = 0x8D00, |
| STENCIL_ATTACHMENT = 0x8D20, |
| NONE = 0, |
| FRAMEBUFFER_COMPLETE = 0x8CD5, |
| FRAMEBUFFER_INCOMPLETE_ATTACHMENT = 0x8CD6, |
| FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT = 0x8CD7, |
| FRAMEBUFFER_INCOMPLETE_DIMENSIONS = 0x8CD9, |
| FRAMEBUFFER_UNSUPPORTED = 0x8CDD, |
| FRAMEBUFFER_BINDING = 0x8CA6, |
| RENDERBUFFER_BINDING = 0x8CA7, |
| MAX_RENDERBUFFER_SIZE = 0x84E8, |
| INVALID_FRAMEBUFFER_OPERATION = 0x0506 |
| }; |
| |
| // Context creation attributes. |
| struct Attributes { |
| Attributes() |
| : alpha(true) |
| , depth(true) |
| , stencil(true) |
| , antialias(true) |
| , premultipliedAlpha(true) |
| { |
| } |
| |
| bool alpha; |
| bool depth; |
| bool stencil; |
| bool antialias; |
| bool premultipliedAlpha; |
| }; |
| |
| static PassOwnPtr<GraphicsContext3D> create(Attributes attrs); |
| virtual ~GraphicsContext3D(); |
| |
| #if PLATFORM(MAC) |
| PlatformGraphicsContext3D platformGraphicsContext3D() const { return m_contextObj; } |
| Platform3DObject platformTexture() const { return m_texture; } |
| #elif PLATFORM(CHROMIUM) |
| PlatformGraphicsContext3D platformGraphicsContext3D() const; |
| Platform3DObject platformTexture() const; |
| #elif PLATFORM(QT) |
| PlatformGraphicsContext3D platformGraphicsContext3D(); |
| Platform3DObject platformTexture() const; |
| #else |
| PlatformGraphicsContext3D platformGraphicsContext3D() const { return NullPlatformGraphicsContext3D; } |
| Platform3DObject platformTexture() const { return NullPlatform3DObject; } |
| #endif |
| void makeContextCurrent(); |
| |
| // Helper to return the size in bytes of OpenGL data types |
| // like GL_FLOAT, GL_INT, etc. |
| int sizeInBytes(int type); |
| |
| //---------------------------------------------------------------------- |
| // Helpers for texture uploading. |
| // |
| |
| // Extracts the contents of the given Image into the passed |
| // Vector, obeying the flipY and premultiplyAlpha flags. |
| // Returns the applicable OpenGL format and internalFormat for |
| // the subsequent glTexImage2D or glTexSubImage2D call. |
| // Returns true upon success. |
| bool extractImageData(Image* image, |
| bool flipY, |
| bool premultiplyAlpha, |
| Vector<uint8_t>& imageData, |
| unsigned int* format, |
| unsigned int* internalFormat); |
| |
| // Extracts the contents of the given ImageData into the passed |
| // Vector, obeying the flipY and premultiplyAlpha flags. |
| // Returns true upon success. |
| bool extractImageData(ImageData*, |
| bool flipY, |
| bool premultiplyAlpha, |
| Vector<uint8_t>& data); |
| |
| // Processes the given image data in preparation for uploading |
| // via texImage2D or texSubImage2D. The input data must be in |
| // 4-component format with the alpha channel last (i.e., RGBA |
| // or BGRA), tightly packed, with no space between rows. |
| |
| enum AlphaOp { |
| kAlphaDoNothing = 0, |
| kAlphaDoPremultiply = 1, |
| kAlphaDoUnmultiply = 2 |
| }; |
| |
| void processImageData(uint8_t* imageData, |
| unsigned width, |
| unsigned height, |
| bool flipVertically, |
| AlphaOp alphaOp); |
| |
| //---------------------------------------------------------------------- |
| // Entry points for WebGL. |
| // |
| |
| void activeTexture(unsigned long texture); |
| void attachShader(WebGLProgram* program, WebGLShader* shader); |
| void bindAttribLocation(WebGLProgram*, unsigned long index, const String& name); |
| void bindBuffer(unsigned long target, WebGLBuffer*); |
| void bindFramebuffer(unsigned long target, WebGLFramebuffer*); |
| void bindRenderbuffer(unsigned long target, WebGLRenderbuffer*); |
| void bindTexture(unsigned long target, WebGLTexture* texture); |
| void blendColor(double red, double green, double blue, double alpha); |
| void blendEquation(unsigned long mode); |
| void blendEquationSeparate(unsigned long modeRGB, unsigned long modeAlpha); |
| void blendFunc(unsigned long sfactor, unsigned long dfactor); |
| void blendFuncSeparate(unsigned long srcRGB, unsigned long dstRGB, unsigned long srcAlpha, unsigned long dstAlpha); |
| |
| void bufferData(unsigned long target, int size, unsigned long usage); |
| void bufferData(unsigned long target, WebGLArray* data, unsigned long usage); |
| void bufferSubData(unsigned long target, long offset, WebGLArray* data); |
| |
| unsigned long checkFramebufferStatus(unsigned long target); |
| void clear(unsigned long mask); |
| void clearColor(double red, double green, double blue, double alpha); |
| void clearDepth(double depth); |
| void clearStencil(long s); |
| void colorMask(bool red, bool green, bool blue, bool alpha); |
| void compileShader(WebGLShader*); |
| |
| //void compressedTexImage2D(unsigned long target, long level, unsigned long internalformat, unsigned long width, unsigned long height, long border, unsigned long imageSize, const void* data); |
| //void compressedTexSubImage2D(unsigned long target, long level, long xoffset, long yoffset, unsigned long width, unsigned long height, unsigned long format, unsigned long imageSize, const void* data); |
| |
| void copyTexImage2D(unsigned long target, long level, unsigned long internalformat, long x, long y, unsigned long width, unsigned long height, long border); |
| void copyTexSubImage2D(unsigned long target, long level, long xoffset, long yoffset, long x, long y, unsigned long width, unsigned long height); |
| void cullFace(unsigned long mode); |
| void depthFunc(unsigned long func); |
| void depthMask(bool flag); |
| void depthRange(double zNear, double zFar); |
| void detachShader(WebGLProgram*, WebGLShader*); |
| void disable(unsigned long cap); |
| void disableVertexAttribArray(unsigned long index); |
| void drawArrays(unsigned long mode, long first, long count); |
| void drawElements(unsigned long mode, unsigned long count, unsigned long type, long offset); |
| |
| void enable(unsigned long cap); |
| void enableVertexAttribArray(unsigned long index); |
| void finish(); |
| void flush(); |
| void framebufferRenderbuffer(unsigned long target, unsigned long attachment, unsigned long renderbuffertarget, WebGLRenderbuffer*); |
| void framebufferTexture2D(unsigned long target, unsigned long attachment, unsigned long textarget, WebGLTexture*, long level); |
| void frontFace(unsigned long mode); |
| void generateMipmap(unsigned long target); |
| |
| bool getActiveAttrib(WebGLProgram* program, unsigned long index, ActiveInfo&); |
| bool getActiveUniform(WebGLProgram* program, unsigned long index, ActiveInfo&); |
| |
| int getAttribLocation(WebGLProgram*, const String& name); |
| |
| void getBooleanv(unsigned long pname, unsigned char* value); |
| |
| void getBufferParameteriv(unsigned long target, unsigned long pname, int* value); |
| |
| Attributes getContextAttributes(); |
| |
| unsigned long getError(); |
| |
| void getFloatv(unsigned long pname, float* value); |
| |
| void getFramebufferAttachmentParameteriv(unsigned long target, unsigned long attachment, unsigned long pname, int* value); |
| |
| void getIntegerv(unsigned long pname, int* value); |
| |
| void getProgramiv(WebGLProgram* program, unsigned long pname, int* value); |
| |
| String getProgramInfoLog(WebGLProgram*); |
| |
| void getRenderbufferParameteriv(unsigned long target, unsigned long pname, int* value); |
| |
| void getShaderiv(WebGLShader*, unsigned long pname, int* value); |
| |
| String getShaderInfoLog(WebGLShader*); |
| |
| // TBD |
| // void glGetShaderPrecisionFormat (GLenum shadertype, GLenum precisiontype, GLint* range, GLint* precision); |
| |
| String getShaderSource(WebGLShader*); |
| String getString(unsigned long name); |
| |
| void getTexParameterfv(unsigned long target, unsigned long pname, float* value); |
| void getTexParameteriv(unsigned long target, unsigned long pname, int* value); |
| |
| void getUniformfv(WebGLProgram* program, long location, float* value); |
| void getUniformiv(WebGLProgram* program, long location, int* value); |
| |
| long getUniformLocation(WebGLProgram*, const String& name); |
| |
| void getVertexAttribfv(unsigned long index, unsigned long pname, float* value); |
| void getVertexAttribiv(unsigned long index, unsigned long pname, int* value); |
| |
| long getVertexAttribOffset(unsigned long index, unsigned long pname); |
| |
| void hint(unsigned long target, unsigned long mode); |
| bool isBuffer(WebGLBuffer*); |
| bool isEnabled(unsigned long cap); |
| bool isFramebuffer(WebGLFramebuffer*); |
| bool isProgram(WebGLProgram*); |
| bool isRenderbuffer(WebGLRenderbuffer*); |
| bool isShader(WebGLShader*); |
| bool isTexture(WebGLTexture*); |
| void lineWidth(double); |
| void linkProgram(WebGLProgram*); |
| void pixelStorei(unsigned long pname, long param); |
| void polygonOffset(double factor, double units); |
| |
| PassRefPtr<WebGLArray> readPixels(long x, long y, unsigned long width, unsigned long height, unsigned long format, unsigned long type); |
| |
| void releaseShaderCompiler(); |
| void renderbufferStorage(unsigned long target, unsigned long internalformat, unsigned long width, unsigned long height); |
| void sampleCoverage(double value, bool invert); |
| void scissor(long x, long y, unsigned long width, unsigned long height); |
| void shaderSource(WebGLShader*, const String& string); |
| void stencilFunc(unsigned long func, long ref, unsigned long mask); |
| void stencilFuncSeparate(unsigned long face, unsigned long func, long ref, unsigned long mask); |
| void stencilMask(unsigned long mask); |
| void stencilMaskSeparate(unsigned long face, unsigned long mask); |
| void stencilOp(unsigned long fail, unsigned long zfail, unsigned long zpass); |
| void stencilOpSeparate(unsigned long face, unsigned long fail, unsigned long zfail, unsigned long zpass); |
| |
| // These next several functions return an error code (0 if no errors) rather than using an ExceptionCode. |
| // Currently they return -1 on any error. |
| int texImage2D(unsigned target, unsigned level, unsigned internalformat, unsigned width, unsigned height, unsigned border, unsigned format, unsigned type, void* pixels); |
| int texImage2D(unsigned target, unsigned level, Image* image, bool flipY, bool premultiplyAlpha); |
| |
| void texParameterf(unsigned target, unsigned pname, float param); |
| void texParameteri(unsigned target, unsigned pname, int param); |
| |
| int texSubImage2D(unsigned target, unsigned level, unsigned xoffset, unsigned yoffset, unsigned width, unsigned height, unsigned format, unsigned type, void* pixels); |
| int texSubImage2D(unsigned target, unsigned level, unsigned xoffset, unsigned yoffset, Image* image, bool flipY, bool premultiplyAlpha); |
| |
| void uniform1f(long location, float x); |
| void uniform1fv(long location, float* v, int size); |
| void uniform1i(long location, int x); |
| void uniform1iv(long location, int* v, int size); |
| void uniform2f(long location, float x, float y); |
| void uniform2fv(long location, float* v, int size); |
| void uniform2i(long location, int x, int y); |
| void uniform2iv(long location, int* v, int size); |
| void uniform3f(long location, float x, float y, float z); |
| void uniform3fv(long location, float* v, int size); |
| void uniform3i(long location, int x, int y, int z); |
| void uniform3iv(long location, int* v, int size); |
| void uniform4f(long location, float x, float y, float z, float w); |
| void uniform4fv(long location, float* v, int size); |
| void uniform4i(long location, int x, int y, int z, int w); |
| void uniform4iv(long location, int* v, int size); |
| void uniformMatrix2fv(long location, bool transpose, float* value, int size); |
| void uniformMatrix3fv(long location, bool transpose, float* value, int size); |
| void uniformMatrix4fv(long location, bool transpose, float* value, int size); |
| |
| void useProgram(WebGLProgram*); |
| void validateProgram(WebGLProgram*); |
| |
| void vertexAttrib1f(unsigned long indx, float x); |
| void vertexAttrib1fv(unsigned long indx, float* values); |
| void vertexAttrib2f(unsigned long indx, float x, float y); |
| void vertexAttrib2fv(unsigned long indx, float* values); |
| void vertexAttrib3f(unsigned long indx, float x, float y, float z); |
| void vertexAttrib3fv(unsigned long indx, float* values); |
| void vertexAttrib4f(unsigned long indx, float x, float y, float z, float w); |
| void vertexAttrib4fv(unsigned long indx, float* values); |
| void vertexAttribPointer(unsigned long indx, int size, int type, bool normalized, |
| unsigned long stride, unsigned long offset); |
| |
| void viewport(long x, long y, unsigned long width, unsigned long height); |
| |
| void reshape(int width, int height); |
| |
| // Helpers for notification about paint events |
| void beginPaint(WebGLRenderingContext* context); |
| void endPaint(); |
| |
| // Support for buffer creation and deletion |
| unsigned createBuffer(); |
| unsigned createFramebuffer(); |
| unsigned createProgram(); |
| unsigned createRenderbuffer(); |
| unsigned createShader(unsigned long); |
| unsigned createTexture(); |
| |
| void deleteBuffer(unsigned); |
| void deleteFramebuffer(unsigned); |
| void deleteProgram(unsigned); |
| void deleteRenderbuffer(unsigned); |
| void deleteShader(unsigned); |
| void deleteTexture(unsigned); |
| |
| // Synthesizes an OpenGL error which will be returned from a |
| // later call to getError. This is used to emulate OpenGL ES |
| // 2.0 behavior on the desktop and to enforce additional error |
| // checking mandated by WebGL. |
| // |
| // Per the behavior of glGetError, this stores at most one |
| // instance of any given error, and returns them from calls to |
| // getError in the order they were added. |
| void synthesizeGLError(unsigned long error); |
| |
| private: |
| GraphicsContext3D(Attributes attrs); |
| |
| // Helpers for texture uploading. |
| void premultiplyAlpha(unsigned char* rgbaData, int numPixels); |
| void unmultiplyAlpha(uint8_t* imageData, int numPixels); |
| |
| // Each platform must provide an implementation of this method. |
| // |
| // Gets the data for the given Image into outputVector, |
| // without doing any processing of the data (vertical flip or |
| // otherwise). |
| // |
| // premultiplyAlpha indicates whether the user will eventually |
| // want the alpha channel multiplied into the color channels. |
| // |
| // The out parameter hasAlphaChannel indicates whether the |
| // image actually had an alpha channel. |
| // |
| // The out parameter neededAlphaOp should be passed to a |
| // subsequent call of processImageData. |
| // |
| // The out parameter format should be passed to subsequent |
| // invocations of texImage2D and texSubImage2D. |
| bool getImageData(Image* image, |
| Vector<uint8_t>& outputVector, |
| bool premultiplyAlpha, |
| bool* hasAlphaChannel, |
| AlphaOp* neededAlphaOp, |
| unsigned int* format); |
| |
| int m_currentWidth, m_currentHeight; |
| |
| #if PLATFORM(MAC) |
| Attributes m_attrs; |
| Vector<Vector<float> > m_vertexArray; |
| |
| CGLContextObj m_contextObj; |
| GLuint m_texture; |
| GLuint m_fbo; |
| GLuint m_depthBuffer; |
| // Errors raised by synthesizeGLError(). |
| ListHashSet<unsigned long> m_syntheticErrors; |
| #endif |
| |
| // FIXME: ideally this would be used on all platforms. |
| #if PLATFORM(CHROMIUM) || PLATFORM(QT) |
| friend class GraphicsContext3DInternal; |
| OwnPtr<GraphicsContext3DInternal> m_internal; |
| #endif |
| }; |
| |
| } // namespace WebCore |
| |
| #endif // GraphicsContext3D_h |
