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Diffstat (limited to 'WebKit/chromium/src/GraphicsContext3DInternal.h')
| -rw-r--r-- | WebKit/chromium/src/GraphicsContext3DInternal.h | 301 |
1 files changed, 301 insertions, 0 deletions
diff --git a/WebKit/chromium/src/GraphicsContext3DInternal.h b/WebKit/chromium/src/GraphicsContext3DInternal.h new file mode 100644 index 0000000..f12fff0 --- /dev/null +++ b/WebKit/chromium/src/GraphicsContext3DInternal.h @@ -0,0 +1,301 @@ +/* + * Copyright (C) 2010 Google 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 AND ITS CONTRIBUTORS "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 OR ITS 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 GraphicsContext3DInternal_h +#define GraphicsContext3DInternal_h + +#include "GraphicsContext3D.h" +#include <wtf/OwnPtr.h> +#if PLATFORM(SKIA) +#include "SkBitmap.h" +#endif + +namespace WebKit { +class WebGraphicsContext3D; +class WebViewImpl; +} // namespace WebKit + +namespace WebCore { + +#if USE(ACCELERATED_COMPOSITING) +class WebGLLayerChromium; +#endif + +class GraphicsContext3DInternal { +public: + GraphicsContext3DInternal(); + ~GraphicsContext3DInternal(); + + bool initialize(GraphicsContext3D::Attributes attrs, HostWindow* hostWindow, bool renderDirectlyToHostWindow); + + // Helper function to provide access to the lower-level WebGraphicsContext3D, + // which is needed for subordinate contexts like WebGL's to share resources + // with the compositor's context. + static WebKit::WebGraphicsContext3D* extractWebGraphicsContext3D(GraphicsContext3D* context); + + PlatformGraphicsContext3D platformGraphicsContext3D() const; + Platform3DObject platformTexture() const; + + bool makeContextCurrent(); + + int sizeInBytes(int type); + + void reshape(int width, int height); + + void paintRenderingResultsToCanvas(CanvasRenderingContext*); + bool paintsIntoCanvasBuffer() const; + + void prepareTexture(); + +#if USE(ACCELERATED_COMPOSITING) + WebGLLayerChromium* platformLayer() const; +#endif + bool isGLES2Compliant() const; + bool isGLES2NPOTStrict() const; + bool isErrorGeneratedOnOutOfBoundsAccesses() const; + + //---------------------------------------------------------------------- + // 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 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); + + GraphicsContext3D::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); + + 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); + + // 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); + + 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); + + 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); + + void synthesizeGLError(unsigned long error); + + void swapBuffers(); + + // EXT_texture_format_BGRA8888 + bool supportsBGRA(); + + // GL_CHROMIUM_map_sub + bool supportsMapSubCHROMIUM(); + void* mapBufferSubDataCHROMIUM(unsigned target, int offset, int size, unsigned access); + void unmapBufferSubDataCHROMIUM(const void*); + void* mapTexSubImage2DCHROMIUM(unsigned target, int level, int xoffset, int yoffset, int width, int height, unsigned format, unsigned type, unsigned access); + void unmapTexSubImage2DCHROMIUM(const void*); + + // GL_CHROMIUM_copy_texture_to_parent_texture + bool supportsCopyTextureToParentTextureCHROMIUM(); + void copyTextureToParentTextureCHROMIUM(unsigned texture, unsigned parentTexture); + +private: + OwnPtr<WebKit::WebGraphicsContext3D> m_impl; + WebKit::WebViewImpl* m_webViewImpl; +#if USE(ACCELERATED_COMPOSITING) + RefPtr<WebGLLayerChromium> m_compositingLayer; +#endif +#if PLATFORM(SKIA) + // If the width and height of the Canvas's backing store don't + // match those that we were given in the most recent call to + // reshape(), then we need an intermediate bitmap to read back the + // frame buffer into. This seems to happen when CSS styles are + // used to resize the Canvas. + SkBitmap m_resizingBitmap; +#endif + +#if PLATFORM(CG) + unsigned char* m_renderOutput; +#endif +}; + +} // namespace WebCore + +#endif // GraphicsContext3D_h |