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Diffstat (limited to 'WebCore/platform/graphics/GraphicsContext3D.h')
| -rw-r--r-- | WebCore/platform/graphics/GraphicsContext3D.h | 904 |
1 files changed, 0 insertions, 904 deletions
diff --git a/WebCore/platform/graphics/GraphicsContext3D.h b/WebCore/platform/graphics/GraphicsContext3D.h deleted file mode 100644 index f9540be..0000000 --- a/WebCore/platform/graphics/GraphicsContext3D.h +++ /dev/null @@ -1,904 +0,0 @@ -/* - * 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 "GraphicsLayer.h" -#include "PlatformString.h" - -#include <wtf/HashMap.h> -#include <wtf/ListHashSet.h> -#include <wtf/Noncopyable.h> - -// FIXME: Find a better way to avoid the name confliction for NO_ERROR. -#if ((PLATFORM(CHROMIUM) && OS(WINDOWS)) || PLATFORM(WIN) || (PLATFORM(QT) && OS(WINDOWS))) -#undef NO_ERROR -#endif - -#if PLATFORM(MAC) -#include "ANGLEWebKitBridge.h" -#include <OpenGL/OpenGL.h> -#include <wtf/RetainPtr.h> - -typedef CGLContextObj PlatformGraphicsContext3D; -const PlatformGraphicsContext3D NullPlatformGraphicsContext3D = 0; -typedef GLuint Platform3DObject; -const Platform3DObject NullPlatform3DObject = 0; - -#ifdef __OBJC__ -@class CALayer; -@class WebGLLayer; -#else -typedef void* CALayer; -typedef void* WebGLLayer; -#endif -#elif PLATFORM(QT) -class QPainter; -class QRect; -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 - -#if PLATFORM(CG) -#include <CoreGraphics/CGContext.h> -#endif - -namespace WebCore { -class CanvasRenderingContext; -class DrawingBuffer; -class Extensions3D; -#if PLATFORM(MAC) -class Extensions3DOpenGL; -#endif -class HostWindow; -class Image; -class ImageData; -class WebGLActiveInfo; - -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 RefCounted<GraphicsContext3D> { -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, - 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, - DEPTH_STENCIL = 0x84F9, - 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, - DEPTH_STENCIL_ATTACHMENT = 0x821A, - 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, - - // WebGL-specific enums - UNPACK_FLIP_Y_WEBGL = 0x9240, - UNPACK_PREMULTIPLY_ALPHA_WEBGL = 0x9241, - CONTEXT_LOST_WEBGL = 0x9242, - UNPACK_COLORSPACE_CONVERSION_WEBGL = 0x9243, - BROWSER_DEFAULT_WEBGL = 0x9244 - }; - - // Context creation attributes. - struct Attributes { - Attributes() - : alpha(true) - , depth(true) - , stencil(false) - , antialias(true) - , premultipliedAlpha(true) - , canRecoverFromContextLoss(true) - { - } - - bool alpha; - bool depth; - bool stencil; - bool antialias; - bool premultipliedAlpha; - bool canRecoverFromContextLoss; - }; - - enum RenderStyle { - RenderOffscreen, - RenderDirectlyToHostWindow - }; - - static PassRefPtr<GraphicsContext3D> create(Attributes, HostWindow*, RenderStyle = RenderOffscreen); - ~GraphicsContext3D(); - -#if PLATFORM(MAC) - PlatformGraphicsContext3D platformGraphicsContext3D() const { return m_contextObj; } - Platform3DObject platformTexture() const { return m_texture; } - CALayer* platformLayer() const { return static_cast<CALayer*>(m_webGLLayer.get()); } -#elif PLATFORM(CHROMIUM) - PlatformGraphicsContext3D platformGraphicsContext3D() const; - Platform3DObject platformTexture() const; -#if USE(ACCELERATED_COMPOSITING) - PlatformLayer* platformLayer() const; -#endif -#elif PLATFORM(QT) - PlatformGraphicsContext3D platformGraphicsContext3D(); - Platform3DObject platformTexture() const; -#if USE(ACCELERATED_COMPOSITING) - PlatformLayer* platformLayer() const { return 0; } -#endif -#else - PlatformGraphicsContext3D platformGraphicsContext3D() const { return NullPlatformGraphicsContext3D; } - Platform3DObject platformTexture() const { return NullPlatform3DObject; } -#if USE(ACCELERATED_COMPOSITING) - PlatformLayer* platformLayer() const { return 0; } -#endif -#endif - void makeContextCurrent(); - - PassRefPtr<DrawingBuffer> createDrawingBuffer(const IntSize& = IntSize()); - -#if PLATFORM(MAC) || PLATFORM(CHROMIUM) - // With multisampling on, blit from multisampleFBO to regular FBO. - void prepareTexture(); -#endif - - // Helper to return the size in bytes of OpenGL data types - // like GL_FLOAT, GL_INT, etc. - int sizeInBytes(int type); - - // Helper to texImage2D with pixel==0 case: pixels are initialized to 0. - // Return true if no GL error is synthesized. - bool texImage2DResourceSafe(unsigned target, unsigned level, unsigned internalformat, unsigned width, unsigned height, unsigned border, unsigned format, unsigned type); - - bool isGLES2Compliant() const; - - //---------------------------------------------------------------------- - // Helpers for texture uploading and pixel readback. - // - - // Computes the components per pixel and bytes per component - // for the given format and type combination. Returns false if - // either was an invalid enum. - bool computeFormatAndTypeParameters(unsigned int format, - unsigned int type, - unsigned long* componentsPerPixel, - unsigned long* bytesPerComponent); - - // Extracts the contents of the given Image into the passed Vector, - // packing the pixel data according to the given format and type, - // and obeying the flipY, premultiplyAlpha, and ignoreGammaAndColorProfile - // flags. Returns true upon success. - bool extractImageData(Image* image, - unsigned int format, - unsigned int type, - bool flipY, - bool premultiplyAlpha, - bool ignoreGammaAndColorProfile, - Vector<uint8_t>& data); - - // Extracts the contents of the given ImageData into the passed Vector, - // packing the pixel data according to the given format and type, - // and obeying the flipY and premultiplyAlpha flags. Returns true - // upon success. - bool extractImageData(ImageData*, - unsigned int format, - unsigned int type, - bool flipY, - bool premultiplyAlpha, - Vector<uint8_t>& data); - - // Helper function which extracts the user-supplied texture - // data, applying the flipY and premultiplyAlpha parameters. - // If the data is not tightly packed according to the passed - // unpackAlignment, the output data will be tightly packed. - // Returns true if successful, false if any error occurred. - bool extractTextureData(unsigned int width, unsigned int height, - unsigned int format, unsigned int type, - unsigned int unpackAlignment, - bool flipY, bool premultiplyAlpha, - const void* pixels, - Vector<uint8_t>& data); - - // Flips the given image data vertically, in-place. - void flipVertically(void* imageData, - unsigned int width, - unsigned int height, - unsigned int bytesPerPixel, - unsigned int unpackAlignment); - - // Attempt to enumerate all possible native image formats to - // reduce the amount of temporary allocations during texture - // uploading. This enum must be public because it is accessed - // by non-member functions. - enum SourceDataFormat { - SourceFormatRGBA8 = 0, - SourceFormatRGBA16Little, - SourceFormatRGBA16Big, - SourceFormatRGBA32F, - SourceFormatRGB8, - SourceFormatRGB16Little, - SourceFormatRGB16Big, - SourceFormatRGB32F, - SourceFormatBGR8, - SourceFormatBGRA8, - SourceFormatBGRA16Little, - SourceFormatBGRA16Big, - SourceFormatARGB8, - SourceFormatARGB16Little, - SourceFormatARGB16Big, - SourceFormatABGR8, - SourceFormatRGBA5551, - SourceFormatRGBA4444, - SourceFormatRGB565, - SourceFormatR8, - SourceFormatR16Little, - SourceFormatR16Big, - SourceFormatR32F, - SourceFormatRA8, - SourceFormatRA16Little, - SourceFormatRA16Big, - SourceFormatRA32F, - SourceFormatAR8, - SourceFormatAR16Little, - SourceFormatAR16Big, - SourceFormatA8, - SourceFormatA16Little, - SourceFormatA16Big, - SourceFormatA32F, - SourceFormatNumFormats - }; - - //---------------------------------------------------------------------- - // Entry points for WebGL. - // - - void activeTexture(unsigned long texture); - void attachShader(Platform3DObject program, Platform3DObject shader); - void bindAttribLocation(Platform3DObject, unsigned long index, const String& name); - void bindBuffer(unsigned long target, Platform3DObject); - void bindFramebuffer(unsigned long target, Platform3DObject); - void bindRenderbuffer(unsigned long target, Platform3DObject); - void bindTexture(unsigned long target, Platform3DObject 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, int size, const void* data, unsigned long usage); - void bufferSubData(unsigned long target, long offset, int size, const void* 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(Platform3DObject); - - // 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(Platform3DObject, Platform3DObject); - 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, Platform3DObject); - void framebufferTexture2D(unsigned long target, unsigned long attachment, unsigned long textarget, Platform3DObject, long level); - void frontFace(unsigned long mode); - void generateMipmap(unsigned long target); - - bool getActiveAttrib(Platform3DObject program, unsigned long index, ActiveInfo&); - bool getActiveUniform(Platform3DObject program, unsigned long index, ActiveInfo&); - - void getAttachedShaders(Platform3DObject program, int maxCount, int* count, unsigned int* shaders); - - int getAttribLocation(Platform3DObject, 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(Platform3DObject program, unsigned long pname, int* value); - - String getProgramInfoLog(Platform3DObject); - - void getRenderbufferParameteriv(unsigned long target, unsigned long pname, int* value); - - void getShaderiv(Platform3DObject, unsigned long pname, int* value); - - String getShaderInfoLog(Platform3DObject); - - // TBD - // void glGetShaderPrecisionFormat (GLenum shadertype, GLenum precisiontype, GLint* range, GLint* precision); - - String getShaderSource(Platform3DObject); - 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(Platform3DObject program, long location, float* value); - void getUniformiv(Platform3DObject program, long location, int* value); - - long getUniformLocation(Platform3DObject, 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(Platform3DObject); - bool isEnabled(unsigned long cap); - bool isFramebuffer(Platform3DObject); - bool isProgram(Platform3DObject); - bool isRenderbuffer(Platform3DObject); - bool isShader(Platform3DObject); - bool isTexture(Platform3DObject); - void lineWidth(double); - void linkProgram(Platform3DObject); - void pixelStorei(unsigned long pname, long param); - void polygonOffset(double factor, double units); - - void readPixels(long x, long y, unsigned long width, unsigned long height, unsigned long format, unsigned long type, void* data); - - 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(Platform3DObject, 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); - - int texImage2D(unsigned target, unsigned level, unsigned internalformat, unsigned width, unsigned height, unsigned border, unsigned format, unsigned type, void* pixels); - - 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); - - 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(Platform3DObject); - void validateProgram(Platform3DObject); - - 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); - -#if PLATFORM(CG) - void paintToCanvas(const unsigned char* imagePixels, int imageWidth, int imageHeight, - int canvasWidth, int canvasHeight, CGContextRef context); -#endif - - void paintRenderingResultsToCanvas(CanvasRenderingContext* context); - -#if PLATFORM(QT) - void paint(QPainter* painter, const QRect& rect) const; - bool paintsIntoCanvasBuffer() const { return true; } -#elif PLATFORM(CHROMIUM) - bool paintsIntoCanvasBuffer() const; -#else - bool paintsIntoCanvasBuffer() const { return false; } -#endif - - // 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); - - // Support for extensions. Returns a non-null object, though not - // all methods it contains may necessarily be supported on the - // current hardware. Must call Extensions3D::supports() to - // determine this. - Extensions3D* getExtensions(); - - private: - GraphicsContext3D(Attributes attrs, HostWindow* hostWindow, bool renderDirectlyToHostWindow); - - // Each platform must provide an implementation of this method. - // - // Gets the data for the given Image into outputVector in the - // format specified by the (OpenGL-style) format and type - // arguments. Despite the fact that the outputVector contains - // uint8_t, if the format and type specify packed pixels, then - // it will essentially contain uint16_t after the extraction - // process. - // - // If premultiplyAlpha is true, the alpha channel, if any, - // will be multiplied into the color channels during the - // extraction process. This premultiplication occurs before - // any packing of pixel data. - // - // If ignoreGammaAndColorProfile is true, gamma correction and ICC - // profile won't be applied. - // - // No vertical flip of the image data is performed by this - // method. - bool getImageData(Image* image, - unsigned int format, - unsigned int type, - bool premultiplyAlpha, - bool ignoreGammaAndColorProfile, - Vector<uint8_t>& outputVector); - - // Possible alpha operations that may need to occur during - // pixel packing. FIXME: kAlphaDoUnmultiply is lossy and must - // be removed. - enum AlphaOp { - AlphaDoNothing = 0, - AlphaDoPremultiply = 1, - AlphaDoUnmultiply = 2 - }; - - // Helper for getImageData which implements packing of pixel - // data into the specified OpenGL destination format and type. - // A sourceUnpackAlignment of zero indicates that the source - // data is tightly packed. Non-zero values may take a slow path. - // Destination data will have no gaps between rows. - bool packPixels(const uint8_t* sourceData, - SourceDataFormat sourceDataFormat, - unsigned int width, - unsigned int height, - unsigned int sourceUnpackAlignment, - unsigned int destinationFormat, - unsigned int destinationType, - AlphaOp alphaOp, - void* destinationData); - -#if PLATFORM(MAC) - // Take into account the user's requested context creation attributes, - // in particular stencil and antialias, and determine which could or - // could not be honored based on the capabilities of the OpenGL - // implementation. - void validateAttributes(); -#endif - - int m_currentWidth, m_currentHeight; - -#if PLATFORM(MAC) - typedef struct { - String source; - String log; - bool isValid; - } ShaderSourceEntry; - HashMap<Platform3DObject, ShaderSourceEntry> m_shaderSourceMap; - - ANGLEWebKitBridge m_compiler; - - OwnPtr<Extensions3DOpenGL> m_extensions; - - Attributes m_attrs; - Vector<Vector<float> > m_vertexArray; - - CGLContextObj m_contextObj; - RetainPtr<WebGLLayer> m_webGLLayer; - GLuint m_texture; - GLuint m_fbo; - GLuint m_depthStencilBuffer; - - // For tracking which FBO is bound - GLuint m_boundFBO; - - // For multisampling - GLuint m_multisampleFBO; - GLuint m_multisampleDepthStencilBuffer; - GLuint m_multisampleColorBuffer; - - // 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 |