| // Copyright (c) 2011 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef WEBKIT_GPU_WEBGRAPHICSCONTEXT3D_IN_PROCESS_IMPL_H_ |
| #define WEBKIT_GPU_WEBGRAPHICSCONTEXT3D_IN_PROCESS_IMPL_H_ |
| |
| #include <list> |
| #include <set> |
| |
| #include "base/hash_tables.h" |
| #include "base/memory/ref_counted.h" |
| #include "third_party/angle/include/GLSLANG/ShaderLang.h" |
| #include "third_party/WebKit/Source/WebKit/chromium/public/WebGraphicsContext3D.h" |
| #include "third_party/WebKit/Source/WebKit/chromium/public/WebString.h" |
| #include "ui/gfx/native_widget_types.h" |
| |
| #if !defined(OS_MACOSX) |
| #define FLIP_FRAMEBUFFER_VERTICALLY |
| #endif |
| namespace gfx { |
| class GLContext; |
| class GLSurface; |
| } |
| |
| using WebKit::WGC3Dchar; |
| using WebKit::WGC3Denum; |
| using WebKit::WGC3Dboolean; |
| using WebKit::WGC3Dbitfield; |
| using WebKit::WGC3Dint; |
| using WebKit::WGC3Dsizei; |
| using WebKit::WGC3Duint; |
| using WebKit::WGC3Dfloat; |
| using WebKit::WGC3Dclampf; |
| using WebKit::WGC3Dintptr; |
| using WebKit::WGC3Dsizeiptr; |
| |
| using WebKit::WebGLId; |
| |
| using WebKit::WebString; |
| using WebKit::WebView; |
| |
| using WebKit::WebGraphicsContext3D; |
| |
| namespace webkit { |
| namespace gpu { |
| |
| // The default implementation of WebGL. In Chromium, using this class |
| // requires the sandbox to be disabled, which is strongly discouraged. |
| // It is provided for support of test_shell and any Chromium ports |
| // where an in-renderer WebGL implementation would be helpful. |
| |
| class WebGraphicsContext3DInProcessImpl : public WebGraphicsContext3D { |
| public: |
| // Creates a WebGraphicsContext3DInProcessImpl for a given window. If window |
| // is gfx::kNullPluginWindow, then it creates an offscreen context. |
| WebGraphicsContext3DInProcessImpl(gfx::PluginWindowHandle window); |
| virtual ~WebGraphicsContext3DInProcessImpl(); |
| |
| //---------------------------------------------------------------------- |
| // WebGraphicsContext3D methods |
| virtual bool initialize( |
| WebGraphicsContext3D::Attributes attributes, WebView*, bool); |
| virtual bool makeContextCurrent(); |
| |
| virtual int width(); |
| virtual int height(); |
| |
| virtual bool isGLES2Compliant(); |
| |
| virtual bool setParentContext(WebGraphicsContext3D* parent_context); |
| |
| virtual void reshape(int width, int height); |
| |
| virtual bool readBackFramebuffer(unsigned char* pixels, size_t bufferSize); |
| virtual bool readBackFramebuffer(unsigned char* pixels, size_t buffer_size, |
| WebGLId framebuffer, int width, int height); |
| |
| virtual WebGLId getPlatformTextureId(); |
| virtual void prepareTexture(); |
| |
| virtual void synthesizeGLError(WGC3Denum error); |
| virtual void* mapBufferSubDataCHROMIUM(WGC3Denum target, WGC3Dintptr offset, |
| WGC3Dsizeiptr size, WGC3Denum access); |
| virtual void unmapBufferSubDataCHROMIUM(const void*); |
| virtual void* mapTexSubImage2DCHROMIUM( |
| WGC3Denum target, |
| WGC3Dint level, |
| WGC3Dint xoffset, |
| WGC3Dint yoffset, |
| WGC3Dsizei width, |
| WGC3Dsizei height, |
| WGC3Denum format, |
| WGC3Denum type, |
| WGC3Denum access); |
| virtual void unmapTexSubImage2DCHROMIUM(const void*); |
| virtual void copyTextureToParentTextureCHROMIUM( |
| WebGLId texture, WebGLId parentTexture); |
| |
| virtual void rateLimitOffscreenContextCHROMIUM() { } |
| |
| virtual WebString getRequestableExtensionsCHROMIUM(); |
| virtual void requestExtensionCHROMIUM(const char*); |
| |
| virtual void blitFramebufferCHROMIUM( |
| WGC3Dint srcX0, WGC3Dint srcY0, WGC3Dint srcX1, WGC3Dint srcY1, |
| WGC3Dint dstX0, WGC3Dint dstY0, WGC3Dint dstX1, WGC3Dint dstY1, |
| WGC3Dbitfield mask, WGC3Denum filter); |
| virtual void renderbufferStorageMultisampleCHROMIUM( |
| WGC3Denum target, WGC3Dsizei samples, WGC3Denum internalformat, |
| WGC3Dsizei width, WGC3Dsizei height); |
| |
| virtual void activeTexture(WGC3Denum texture); |
| virtual void attachShader(WebGLId program, WebGLId shader); |
| virtual void bindAttribLocation( |
| WebGLId program, WGC3Duint index, const WGC3Dchar* name); |
| virtual void bindBuffer(WGC3Denum target, WebGLId buffer); |
| virtual void bindFramebuffer(WGC3Denum target, WebGLId framebuffer); |
| virtual void bindRenderbuffer( |
| WGC3Denum target, WebGLId renderbuffer); |
| virtual void bindTexture(WGC3Denum target, WebGLId texture); |
| virtual void blendColor( |
| WGC3Dclampf red, WGC3Dclampf green, WGC3Dclampf blue, WGC3Dclampf alpha); |
| virtual void blendEquation(WGC3Denum mode); |
| virtual void blendEquationSeparate(WGC3Denum modeRGB, WGC3Denum modeAlpha); |
| virtual void blendFunc(WGC3Denum sfactor, WGC3Denum dfactor); |
| virtual void blendFuncSeparate(WGC3Denum srcRGB, WGC3Denum dstRGB, |
| WGC3Denum srcAlpha, WGC3Denum dstAlpha); |
| |
| virtual void bufferData( |
| WGC3Denum target, WGC3Dsizeiptr size, const void* data, WGC3Denum usage); |
| virtual void bufferSubData(WGC3Denum target, WGC3Dintptr offset, |
| WGC3Dsizeiptr size, const void* data); |
| |
| virtual WGC3Denum checkFramebufferStatus(WGC3Denum target); |
| virtual void clear(WGC3Dbitfield mask); |
| virtual void clearColor( |
| WGC3Dclampf red, WGC3Dclampf green, WGC3Dclampf blue, WGC3Dclampf alpha); |
| virtual void clearDepth(WGC3Dclampf depth); |
| virtual void clearStencil(WGC3Dint s); |
| virtual void colorMask(WGC3Dboolean red, WGC3Dboolean green, |
| WGC3Dboolean blue, WGC3Dboolean alpha); |
| virtual void compileShader(WebGLId shader); |
| |
| virtual void copyTexImage2D( |
| WGC3Denum target, |
| WGC3Dint level, |
| WGC3Denum internalformat, |
| WGC3Dint x, |
| WGC3Dint y, |
| WGC3Dsizei width, |
| WGC3Dsizei height, |
| WGC3Dint border); |
| virtual void copyTexSubImage2D( |
| WGC3Denum target, |
| WGC3Dint level, |
| WGC3Dint xoffset, |
| WGC3Dint yoffset, |
| WGC3Dint x, |
| WGC3Dint y, |
| WGC3Dsizei width, |
| WGC3Dsizei height); |
| virtual void cullFace(WGC3Denum mode); |
| virtual void depthFunc(WGC3Denum func); |
| virtual void depthMask(WGC3Dboolean flag); |
| virtual void depthRange(WGC3Dclampf zNear, WGC3Dclampf zFar); |
| virtual void detachShader(WebGLId program, WebGLId shader); |
| virtual void disable(WGC3Denum cap); |
| virtual void disableVertexAttribArray(WGC3Duint index); |
| virtual void drawArrays(WGC3Denum mode, WGC3Dint first, WGC3Dsizei count); |
| virtual void drawElements( |
| WGC3Denum mode, |
| WGC3Dsizei count, |
| WGC3Denum type, |
| WGC3Dintptr offset); |
| |
| virtual void enable(WGC3Denum cap); |
| virtual void enableVertexAttribArray(WGC3Duint index); |
| virtual void finish(); |
| virtual void flush(); |
| virtual void framebufferRenderbuffer( |
| WGC3Denum target, |
| WGC3Denum attachment, |
| WGC3Denum renderbuffertarget, |
| WebGLId renderbuffer); |
| virtual void framebufferTexture2D( |
| WGC3Denum target, |
| WGC3Denum attachment, |
| WGC3Denum textarget, |
| WebGLId texture, |
| WGC3Dint level); |
| virtual void frontFace(WGC3Denum mode); |
| virtual void generateMipmap(WGC3Denum target); |
| |
| virtual bool getActiveAttrib(WebGLId program, WGC3Duint index, ActiveInfo&); |
| virtual bool getActiveUniform(WebGLId program, WGC3Duint index, ActiveInfo&); |
| |
| virtual void getAttachedShaders(WebGLId program, WGC3Dsizei maxCount, |
| WGC3Dsizei* count, WebGLId* shaders); |
| |
| virtual WGC3Dint getAttribLocation(WebGLId program, const WGC3Dchar* name); |
| |
| virtual void getBooleanv(WGC3Denum pname, WGC3Dboolean* value); |
| |
| virtual void getBufferParameteriv( |
| WGC3Denum target, WGC3Denum pname, WGC3Dint* value); |
| |
| virtual Attributes getContextAttributes(); |
| |
| virtual WGC3Denum getError(); |
| |
| virtual bool isContextLost(); |
| |
| virtual void getFloatv(WGC3Denum pname, WGC3Dfloat* value); |
| |
| virtual void getFramebufferAttachmentParameteriv( |
| WGC3Denum target, |
| WGC3Denum attachment, |
| WGC3Denum pname, |
| WGC3Dint* value); |
| |
| virtual void getIntegerv(WGC3Denum pname, WGC3Dint* value); |
| |
| virtual void getProgramiv( |
| WebGLId program, WGC3Denum pname, WGC3Dint* value); |
| |
| virtual WebString getProgramInfoLog(WebGLId program); |
| |
| virtual void getRenderbufferParameteriv( |
| WGC3Denum target, WGC3Denum pname, WGC3Dint* value); |
| |
| virtual void getShaderiv( |
| WebGLId shader, WGC3Denum pname, WGC3Dint* value); |
| |
| virtual WebString getShaderInfoLog(WebGLId shader); |
| |
| // TBD |
| // void glGetShaderPrecisionFormat( |
| // GLenum shadertype, GLenum precisiontype, |
| // GLint* range, GLint* precision); |
| |
| virtual WebString getShaderSource(WebGLId shader); |
| virtual WebString getString(WGC3Denum name); |
| |
| virtual void getTexParameterfv( |
| WGC3Denum target, WGC3Denum pname, WGC3Dfloat* value); |
| virtual void getTexParameteriv( |
| WGC3Denum target, WGC3Denum pname, WGC3Dint* value); |
| |
| virtual void getUniformfv( |
| WebGLId program, WGC3Dint location, WGC3Dfloat* value); |
| virtual void getUniformiv( |
| WebGLId program, WGC3Dint location, WGC3Dint* value); |
| |
| virtual WGC3Dint getUniformLocation(WebGLId program, const WGC3Dchar* name); |
| |
| virtual void getVertexAttribfv( |
| WGC3Duint index, WGC3Denum pname, WGC3Dfloat* value); |
| virtual void getVertexAttribiv( |
| WGC3Duint index, WGC3Denum pname, WGC3Dint* value); |
| |
| virtual WGC3Dsizeiptr getVertexAttribOffset( |
| WGC3Duint index, WGC3Denum pname); |
| |
| virtual void hint(WGC3Denum target, WGC3Denum mode); |
| virtual WGC3Dboolean isBuffer(WebGLId buffer); |
| virtual WGC3Dboolean isEnabled(WGC3Denum cap); |
| virtual WGC3Dboolean isFramebuffer(WebGLId framebuffer); |
| virtual WGC3Dboolean isProgram(WebGLId program); |
| virtual WGC3Dboolean isRenderbuffer(WebGLId renderbuffer); |
| virtual WGC3Dboolean isShader(WebGLId shader); |
| virtual WGC3Dboolean isTexture(WebGLId texture); |
| virtual void lineWidth(WGC3Dfloat width); |
| virtual void linkProgram(WebGLId program); |
| virtual void pixelStorei(WGC3Denum pname, WGC3Dint param); |
| virtual void polygonOffset(WGC3Dfloat factor, WGC3Dfloat units); |
| |
| virtual void readPixels( |
| WGC3Dint x, WGC3Dint y, |
| WGC3Dsizei width, WGC3Dsizei height, |
| WGC3Denum format, |
| WGC3Denum type, |
| void* pixels); |
| |
| virtual void releaseShaderCompiler(); |
| virtual void renderbufferStorage( |
| WGC3Denum target, |
| WGC3Denum internalformat, |
| WGC3Dsizei width, |
| WGC3Dsizei height); |
| virtual void sampleCoverage(WGC3Dclampf value, WGC3Dboolean invert); |
| virtual void scissor( |
| WGC3Dint x, WGC3Dint y, WGC3Dsizei width, WGC3Dsizei height); |
| virtual void shaderSource(WebGLId shader, const WGC3Dchar* source); |
| virtual void stencilFunc(WGC3Denum func, WGC3Dint ref, WGC3Duint mask); |
| virtual void stencilFuncSeparate( |
| WGC3Denum face, WGC3Denum func, WGC3Dint ref, WGC3Duint mask); |
| virtual void stencilMask(WGC3Duint mask); |
| virtual void stencilMaskSeparate(WGC3Denum face, WGC3Duint mask); |
| virtual void stencilOp(WGC3Denum fail, WGC3Denum zfail, WGC3Denum zpass); |
| virtual void stencilOpSeparate( |
| WGC3Denum face, |
| WGC3Denum fail, |
| WGC3Denum zfail, |
| WGC3Denum zpass); |
| |
| virtual void texImage2D( |
| WGC3Denum target, |
| WGC3Dint level, |
| WGC3Denum internalformat, |
| WGC3Dsizei width, |
| WGC3Dsizei height, |
| WGC3Dint border, |
| WGC3Denum format, |
| WGC3Denum type, |
| const void* pixels); |
| |
| virtual void texParameterf( |
| WGC3Denum target, WGC3Denum pname, WGC3Dfloat param); |
| virtual void texParameteri( |
| WGC3Denum target, WGC3Denum pname, WGC3Dint param); |
| |
| virtual void texSubImage2D( |
| WGC3Denum target, |
| WGC3Dint level, |
| WGC3Dint xoffset, |
| WGC3Dint yoffset, |
| WGC3Dsizei width, |
| WGC3Dsizei height, |
| WGC3Denum format, |
| WGC3Denum type, |
| const void* pixels); |
| |
| virtual void uniform1f(WGC3Dint location, WGC3Dfloat x); |
| virtual void uniform1fv(WGC3Dint location, WGC3Dsizei count, |
| const WGC3Dfloat* v); |
| virtual void uniform1i(WGC3Dint location, WGC3Dint x); |
| virtual void uniform1iv(WGC3Dint location, WGC3Dsizei count, |
| const WGC3Dint* v); |
| virtual void uniform2f(WGC3Dint location, WGC3Dfloat x, WGC3Dfloat y); |
| virtual void uniform2fv(WGC3Dint location, WGC3Dsizei count, |
| const WGC3Dfloat* v); |
| virtual void uniform2i(WGC3Dint location, WGC3Dint x, WGC3Dint y); |
| virtual void uniform2iv(WGC3Dint location, WGC3Dsizei count, |
| const WGC3Dint* v); |
| virtual void uniform3f(WGC3Dint location, |
| WGC3Dfloat x, WGC3Dfloat y, WGC3Dfloat z); |
| virtual void uniform3fv(WGC3Dint location, WGC3Dsizei count, |
| const WGC3Dfloat* v); |
| virtual void uniform3i(WGC3Dint location, WGC3Dint x, WGC3Dint y, WGC3Dint z); |
| virtual void uniform3iv(WGC3Dint location, WGC3Dsizei count, |
| const WGC3Dint* v); |
| virtual void uniform4f(WGC3Dint location, WGC3Dfloat x, WGC3Dfloat y, |
| WGC3Dfloat z, WGC3Dfloat w); |
| virtual void uniform4fv(WGC3Dint location, WGC3Dsizei count, |
| const WGC3Dfloat* v); |
| virtual void uniform4i(WGC3Dint location, WGC3Dint x, WGC3Dint y, |
| WGC3Dint z, WGC3Dint w); |
| virtual void uniform4iv(WGC3Dint location, WGC3Dsizei count, |
| const WGC3Dint* v); |
| virtual void uniformMatrix2fv( |
| WGC3Dint location, WGC3Dsizei count, |
| WGC3Dboolean transpose, const WGC3Dfloat* value); |
| virtual void uniformMatrix3fv( |
| WGC3Dint location, WGC3Dsizei count, |
| WGC3Dboolean transpose, const WGC3Dfloat* value); |
| virtual void uniformMatrix4fv( |
| WGC3Dint location, WGC3Dsizei count, |
| WGC3Dboolean transpose, const WGC3Dfloat* value); |
| |
| virtual void useProgram(WebGLId program); |
| virtual void validateProgram(WebGLId program); |
| |
| virtual void vertexAttrib1f(WGC3Duint index, WGC3Dfloat x); |
| virtual void vertexAttrib1fv(WGC3Duint index, const WGC3Dfloat* values); |
| virtual void vertexAttrib2f(WGC3Duint index, WGC3Dfloat x, WGC3Dfloat y); |
| virtual void vertexAttrib2fv(WGC3Duint index, const WGC3Dfloat* values); |
| virtual void vertexAttrib3f( |
| WGC3Duint index, WGC3Dfloat x, WGC3Dfloat y, WGC3Dfloat z); |
| virtual void vertexAttrib3fv(WGC3Duint index, const WGC3Dfloat* values); |
| virtual void vertexAttrib4f( |
| WGC3Duint index, WGC3Dfloat x, WGC3Dfloat y, WGC3Dfloat z, WGC3Dfloat w); |
| virtual void vertexAttrib4fv(WGC3Duint index, const WGC3Dfloat* values); |
| virtual void vertexAttribPointer( |
| WGC3Duint index, |
| WGC3Dint size, |
| WGC3Denum type, |
| WGC3Dboolean normalized, |
| WGC3Dsizei stride, |
| WGC3Dintptr offset); |
| |
| virtual void viewport( |
| WGC3Dint x, WGC3Dint y, WGC3Dsizei width, WGC3Dsizei height); |
| |
| // Support for buffer creation and deletion |
| virtual WebGLId createBuffer(); |
| virtual WebGLId createFramebuffer(); |
| virtual WebGLId createProgram(); |
| virtual WebGLId createRenderbuffer(); |
| virtual WebGLId createShader(WGC3Denum); |
| virtual WebGLId createTexture(); |
| |
| virtual void deleteBuffer(WebGLId); |
| virtual void deleteFramebuffer(WebGLId); |
| virtual void deleteProgram(WebGLId); |
| virtual void deleteRenderbuffer(WebGLId); |
| virtual void deleteShader(WebGLId); |
| virtual void deleteTexture(WebGLId); |
| |
| virtual void setContextLostCallback( |
| WebGraphicsContext3D::WebGraphicsContextLostCallback* callback) {} |
| virtual WGC3Denum getGraphicsResetStatusARB(); |
| |
| virtual void setSwapBuffersCompleteCallbackCHROMIUM( |
| WebGraphicsContext3D:: |
| WebGraphicsSwapBuffersCompleteCallbackCHROMIUM* callback) {} |
| |
| protected: |
| #if WEBKIT_USING_SKIA |
| virtual GrGLInterface* onCreateGrGLInterface(); |
| #endif |
| |
| private: |
| // ANGLE related. |
| struct ShaderSourceEntry; |
| |
| typedef base::hash_map<WebGLId, ShaderSourceEntry*> ShaderSourceMap; |
| |
| bool AllocateOffscreenFrameBuffer(int width, int height); |
| void ClearRenderTarget(); |
| |
| #ifdef FLIP_FRAMEBUFFER_VERTICALLY |
| void FlipVertically(unsigned char* framebuffer, |
| unsigned int width, |
| unsigned int height); |
| #endif |
| |
| // 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(); |
| |
| // Resolve the given rectangle of the multisampled framebuffer if necessary. |
| void ResolveMultisampledFramebuffer( |
| WGC3Dint x, WGC3Dint y, WGC3Dsizei width, WGC3Dsizei height); |
| |
| bool AngleCreateCompilers(); |
| void AngleDestroyCompilers(); |
| bool AngleValidateShaderSource(ShaderSourceEntry* entry); |
| |
| WebGraphicsContext3D::Attributes attributes_; |
| bool initialized_; |
| bool render_directly_to_web_view_; |
| bool is_gles2_; |
| bool have_ext_framebuffer_object_; |
| bool have_ext_framebuffer_multisample_; |
| bool have_angle_framebuffer_multisample_; |
| |
| WebGLId texture_; |
| WebGLId fbo_; |
| WebGLId depth_stencil_buffer_; |
| int cached_width_, cached_height_; |
| |
| // For multisampling |
| WebGLId multisample_fbo_; |
| WebGLId multisample_depth_stencil_buffer_; |
| WebGLId multisample_color_buffer_; |
| |
| // For tracking which FBO is bound |
| WebGLId bound_fbo_; |
| |
| // For tracking which texture is bound |
| WebGLId bound_texture_; |
| |
| // FBO used for copying child texture to parent texture. |
| WebGLId copy_texture_to_parent_texture_fbo_; |
| |
| #ifdef FLIP_FRAMEBUFFER_VERTICALLY |
| unsigned char* scanline_; |
| #endif |
| |
| // Errors raised by synthesizeGLError(). |
| std::list<WGC3Denum> synthetic_errors_list_; |
| std::set<WGC3Denum> synthetic_errors_set_; |
| |
| scoped_refptr<gfx::GLContext> gl_context_; |
| scoped_refptr<gfx::GLSurface> gl_surface_; |
| |
| ShaderSourceMap shader_source_map_; |
| |
| ShHandle fragment_compiler_; |
| ShHandle vertex_compiler_; |
| gfx::PluginWindowHandle window_; |
| }; |
| |
| } // namespace gpu |
| } // namespace webkit |
| |
| #endif // WEBKIT_GPU_WEBGRAPHICSCONTEXT3D_IN_PROCESS_IMPL_H_ |
