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|
// Copyright (c) 2012 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 CONTENT_COMMON_GPU_CLIENT_WEBGRAPHICSCONTEXT3D_COMMAND_BUFFER_IMPL_H_
#define CONTENT_COMMON_GPU_CLIENT_WEBGRAPHICSCONTEXT3D_COMMAND_BUFFER_IMPL_H_
#include <string>
#include <vector>
#include "base/callback.h"
#include "base/memory/scoped_ptr.h"
#include "base/memory/weak_ptr.h"
#include "content/common/content_export.h"
#include "content/common/gpu/client/command_buffer_proxy_impl.h"
#include "third_party/WebKit/public/platform/WebGraphicsContext3D.h"
#include "third_party/WebKit/public/platform/WebString.h"
#include "ui/gfx/native_widget_types.h"
#include "ui/gl/gpu_preference.h"
#include "url/gurl.h"
namespace gpu {
class ContextSupport;
class TransferBuffer;
namespace gles2 {
class GLES2CmdHelper;
class GLES2Implementation;
class GLES2Interface;
}
}
using blink::WebGLId;
using blink::WGC3Dbyte;
using blink::WGC3Dchar;
using blink::WGC3Denum;
using blink::WGC3Dboolean;
using blink::WGC3Dbitfield;
using blink::WGC3Dint;
using blink::WGC3Dsizei;
using blink::WGC3Duint;
using blink::WGC3Dfloat;
using blink::WGC3Dclampf;
using blink::WGC3Dintptr;
using blink::WGC3Dsizeiptr;
namespace content {
class GpuChannelHost;
const size_t kDefaultCommandBufferSize = 1024 * 1024;
const size_t kDefaultStartTransferBufferSize = 1 * 1024 * 1024;
const size_t kDefaultMinTransferBufferSize = 1 * 256 * 1024;
const size_t kDefaultMaxTransferBufferSize = 16 * 1024 * 1024;
class WebGraphicsContext3DErrorMessageCallback;
class WebGraphicsContext3DCommandBufferImpl
: public blink::WebGraphicsContext3D {
public:
enum MappedMemoryReclaimLimit {
kNoLimit = 0,
};
struct CONTENT_EXPORT SharedMemoryLimits {
SharedMemoryLimits();
size_t command_buffer_size;
size_t start_transfer_buffer_size;
size_t min_transfer_buffer_size;
size_t max_transfer_buffer_size;
size_t mapped_memory_reclaim_limit;
};
WebGraphicsContext3DCommandBufferImpl(
int surface_id,
const GURL& active_url,
GpuChannelHost* host,
const Attributes& attributes,
bool bind_generates_resources,
const SharedMemoryLimits& limits);
virtual ~WebGraphicsContext3DCommandBufferImpl();
CommandBufferProxyImpl* GetCommandBufferProxy() {
return command_buffer_.get();
}
CONTENT_EXPORT gpu::ContextSupport* GetContextSupport();
gpu::gles2::GLES2Implementation* GetImplementation() {
return real_gl_.get();
}
// Return true if GPU process reported context lost or there was a
// problem communicating with the GPU process.
bool IsCommandBufferContextLost();
// Create & initialize a WebGraphicsContext3DCommandBufferImpl. Return NULL
// on any failure.
static CONTENT_EXPORT WebGraphicsContext3DCommandBufferImpl*
CreateOffscreenContext(
GpuChannelHost* host,
const WebGraphicsContext3D::Attributes& attributes,
const GURL& active_url,
const SharedMemoryLimits& limits);
size_t GetMappedMemoryLimit() {
return mem_limits_.mapped_memory_reclaim_limit;
}
//----------------------------------------------------------------------
// WebGraphicsContext3D methods
// Must be called after initialize() and before any of the following methods.
// Permanently binds to the first calling thread. Returns false if the
// graphics context fails to create. Do not call from more than one thread.
virtual bool makeContextCurrent();
virtual uint32_t lastFlushID();
virtual unsigned int insertSyncPoint();
virtual void waitSyncPoint(unsigned int sync_point);
virtual void loseContextCHROMIUM(WGC3Denum current, WGC3Denum other);
virtual void reshapeWithScaleFactor(
int width, int height, float scale_factor);
virtual void prepareTexture();
virtual void postSubBufferCHROMIUM(int x, int y, int width, int 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 compressedTexImage2D(WGC3Denum target,
WGC3Dint level,
WGC3Denum internalformat,
WGC3Dsizei width,
WGC3Dsizei height,
WGC3Dint border,
WGC3Dsizei imageSize,
const void* data);
virtual void compressedTexSubImage2D(WGC3Denum target,
WGC3Dint level,
WGC3Dint xoffset,
WGC3Dint yoffset,
WGC3Dsizei width,
WGC3Dsizei height,
WGC3Denum format,
WGC3Dsizei imageSize,
const void* data);
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 blink::WebString getProgramInfoLog(WebGLId program);
virtual void getRenderbufferParameteriv(WGC3Denum target,
WGC3Denum pname,
WGC3Dint* value);
virtual void getShaderiv(WebGLId shader, WGC3Denum pname, WGC3Dint* value);
virtual blink::WebString getShaderInfoLog(WebGLId shader);
virtual void getShaderPrecisionFormat(WGC3Denum shadertype,
WGC3Denum precisiontype,
WGC3Dint* range,
WGC3Dint* precision);
virtual blink::WebString getShaderSource(WebGLId shader);
virtual blink::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);
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(WGC3Dfloat value, WGC3Dboolean invert);
virtual void scissor(WGC3Dint x, WGC3Dint y,
WGC3Dsizei width, WGC3Dsizei height);
virtual void shaderSource(WebGLId shader, const WGC3Dchar* string);
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 void genBuffers(WGC3Dsizei count, WebGLId* ids);
virtual void genFramebuffers(WGC3Dsizei count, WebGLId* ids);
virtual void genRenderbuffers(WGC3Dsizei count, WebGLId* ids);
virtual void genTextures(WGC3Dsizei count, WebGLId* ids);
virtual void deleteBuffers(WGC3Dsizei count, WebGLId* ids);
virtual void deleteFramebuffers(WGC3Dsizei count, WebGLId* ids);
virtual void deleteRenderbuffers(WGC3Dsizei count, WebGLId* ids);
virtual void deleteTextures(WGC3Dsizei count, WebGLId* ids);
virtual WebGLId createBuffer();
virtual WebGLId createFramebuffer();
virtual WebGLId createRenderbuffer();
virtual WebGLId createTexture();
virtual void deleteBuffer(WebGLId);
virtual void deleteFramebuffer(WebGLId);
virtual void deleteRenderbuffer(WebGLId);
virtual void deleteTexture(WebGLId);
virtual WebGLId createProgram();
virtual WebGLId createShader(WGC3Denum);
virtual void deleteProgram(WebGLId);
virtual void deleteShader(WebGLId);
virtual void synthesizeGLError(WGC3Denum);
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 setVisibilityCHROMIUM(bool visible);
virtual void discardFramebufferEXT(WGC3Denum target,
WGC3Dsizei numAttachments,
const WGC3Denum* attachments);
virtual void copyTextureToParentTextureCHROMIUM(
WebGLId texture, WebGLId parentTexture);
virtual void rateLimitOffscreenContextCHROMIUM();
virtual blink::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 blink::WebString getTranslatedShaderSourceANGLE(WebGLId shader);
virtual void setContextLostCallback(
WebGraphicsContext3D::WebGraphicsContextLostCallback* callback);
virtual WGC3Denum getGraphicsResetStatusARB();
virtual void setErrorMessageCallback(
WebGraphicsContext3D::WebGraphicsErrorMessageCallback* callback);
virtual void texImageIOSurface2DCHROMIUM(
WGC3Denum target, WGC3Dint width, WGC3Dint height,
WGC3Duint ioSurfaceId, WGC3Duint plane);
virtual void texStorage2DEXT(
WGC3Denum target, WGC3Dint levels, WGC3Duint internalformat,
WGC3Dint width, WGC3Dint height);
virtual WebGLId createQueryEXT();
virtual void deleteQueryEXT(WebGLId query);
virtual WGC3Dboolean isQueryEXT(WGC3Duint query);
virtual void beginQueryEXT(WGC3Denum target, WebGLId query);
virtual void endQueryEXT(WGC3Denum target);
virtual void getQueryivEXT(
WGC3Denum target, WGC3Denum pname, WGC3Dint* params);
virtual void getQueryObjectuivEXT(
WebGLId query, WGC3Denum pname, WGC3Duint* params);
virtual void copyTextureCHROMIUM(WGC3Denum target, WebGLId source_id,
WebGLId dest_id, WGC3Dint level,
WGC3Denum internal_format,
WGC3Denum dest_type);
virtual void bindUniformLocationCHROMIUM(WebGLId program, WGC3Dint location,
const WGC3Dchar* uniform);
virtual void shallowFlushCHROMIUM();
virtual void shallowFinishCHROMIUM();
virtual void genMailboxCHROMIUM(WGC3Dbyte* mailbox);
virtual void produceTextureCHROMIUM(WGC3Denum target,
const WGC3Dbyte* mailbox);
virtual void consumeTextureCHROMIUM(WGC3Denum target,
const WGC3Dbyte* mailbox);
virtual void insertEventMarkerEXT(const WGC3Dchar* marker);
virtual void pushGroupMarkerEXT(const WGC3Dchar* marker);
virtual void popGroupMarkerEXT();
// GL_OES_vertex_array_object
virtual WebGLId createVertexArrayOES();
virtual void deleteVertexArrayOES(WebGLId array);
virtual WGC3Dboolean isVertexArrayOES(WebGLId array);
virtual void bindVertexArrayOES(WebGLId array);
virtual void bindTexImage2DCHROMIUM(WGC3Denum target, WGC3Dint image_id);
virtual void releaseTexImage2DCHROMIUM(WGC3Denum target, WGC3Dint image_id);
virtual WebGLId createStreamTextureCHROMIUM(WebGLId texture);
virtual void destroyStreamTextureCHROMIUM(WebGLId texture);
virtual void* mapBufferCHROMIUM(WGC3Denum target, WGC3Denum access);
virtual WGC3Dboolean unmapBufferCHROMIUM(WGC3Denum target);
// Async pixel transfer functions.
virtual void asyncTexImage2DCHROMIUM(
WGC3Denum target,
WGC3Dint level,
WGC3Denum internalformat,
WGC3Dsizei width,
WGC3Dsizei height,
WGC3Dint border,
WGC3Denum format,
WGC3Denum type,
const void* pixels);
virtual void asyncTexSubImage2DCHROMIUM(
WGC3Denum target,
WGC3Dint level,
WGC3Dint xoffset,
WGC3Dint yoffset,
WGC3Dsizei width,
WGC3Dsizei height,
WGC3Denum format,
WGC3Denum type,
const void* pixels);
virtual void waitAsyncTexImage2DCHROMIUM(WGC3Denum target);
// GL_EXT_draw_buffers
virtual void drawBuffersEXT(
WGC3Dsizei n,
const WGC3Denum* bufs);
// GL_ANGLE_instanced_arrays
virtual void drawArraysInstancedANGLE(WGC3Denum mode, WGC3Dint first,
WGC3Dsizei count, WGC3Dsizei primcount);
virtual void drawElementsInstancedANGLE(WGC3Denum mode, WGC3Dsizei count,
WGC3Denum type, WGC3Dintptr offset, WGC3Dsizei primcount);
virtual void vertexAttribDivisorANGLE(WGC3Duint index, WGC3Duint divisor);
// GL_CHROMIUM_map_image
virtual WGC3Duint createImageCHROMIUM(
WGC3Dsizei width, WGC3Dsizei height, WGC3Denum internalformat);
virtual void destroyImageCHROMIUM(WGC3Duint image_id);
virtual void getImageParameterivCHROMIUM(
WGC3Duint image_id, WGC3Denum pname, WGC3Dint* params);
virtual void* mapImageCHROMIUM(WGC3Duint image_id, WGC3Denum access);
virtual void unmapImageCHROMIUM(WGC3Duint image_id);
// GL_EXT_multisampled_render_to_texture
virtual void framebufferTexture2DMultisampleEXT(WGC3Denum target,
WGC3Denum attachment,
WGC3Denum textarget,
WebGLId texture,
WGC3Dint level,
WGC3Dsizei samples);
virtual void renderbufferStorageMultisampleEXT(
WGC3Denum target, WGC3Dsizei samples, WGC3Denum internalformat,
WGC3Dsizei width, WGC3Dsizei height);
virtual GrGLInterface* createGrGLInterface();
private:
// These are the same error codes as used by EGL.
enum Error {
SUCCESS = 0x3000,
BAD_ATTRIBUTE = 0x3004,
CONTEXT_LOST = 0x300E
};
// WebGraphicsContext3DCommandBufferImpl configuration attributes. Those in
// the 16-bit range are the same as used by EGL. Those outside the 16-bit
// range are unique to Chromium. Attributes are matched using a closest fit
// algorithm.
// Changes to this enum should also be copied to
// gpu/command_buffer/common/gles2_cmd_utils.cc and to
// gpu/command_buffer/client/gl_in_process_context.cc
enum Attribute {
ALPHA_SIZE = 0x3021,
BLUE_SIZE = 0x3022,
GREEN_SIZE = 0x3023,
RED_SIZE = 0x3024,
DEPTH_SIZE = 0x3025,
STENCIL_SIZE = 0x3026,
SAMPLES = 0x3031,
SAMPLE_BUFFERS = 0x3032,
HEIGHT = 0x3056,
WIDTH = 0x3057,
NONE = 0x3038, // Attrib list = terminator
SHARE_RESOURCES = 0x10000,
BIND_GENERATES_RESOURCES = 0x10001,
FAIL_IF_MAJOR_PERF_CAVEAT = 0x10002
};
friend class WebGraphicsContext3DErrorMessageCallback;
// Initialize the underlying GL context. May be called multiple times; second
// and subsequent calls are ignored. Must be called from the thread that is
// going to use this object to issue GL commands (which might not be the main
// thread).
bool MaybeInitializeGL();
bool InitializeCommandBuffer(bool onscreen);
void Destroy();
// Create a CommandBufferProxy that renders directly to a view. The view and
// the associated window must not be destroyed until the returned
// CommandBufferProxy has been destroyed, otherwise the GPU process might
// attempt to render to an invalid window handle.
//
// NOTE: on Mac OS X, this entry point is only used to set up the
// accelerated compositor's output. On this platform, we actually pass
// a gfx::PluginWindowHandle in place of the gfx::NativeViewId,
// because the facility to allocate a fake PluginWindowHandle is
// already in place. We could add more entry points and messages to
// allocate both fake PluginWindowHandles and NativeViewIds and map
// from fake NativeViewIds to PluginWindowHandles, but this seems like
// unnecessary complexity at the moment.
bool CreateContext(bool onscreen);
virtual void OnGpuChannelLost();
virtual void OnErrorMessage(const std::string& message, int id);
bool initialize_failed_;
bool visible_;
// State needed by MaybeInitializeGL.
scoped_refptr<GpuChannelHost> host_;
int32 surface_id_;
GURL active_url_;
WebGraphicsContext3D::WebGraphicsContextLostCallback* context_lost_callback_;
WGC3Denum context_lost_reason_;
WebGraphicsContext3D::WebGraphicsErrorMessageCallback*
error_message_callback_;
scoped_ptr<WebGraphicsContext3DErrorMessageCallback>
client_error_message_callback_;
blink::WebGraphicsContext3D::Attributes attributes_;
gfx::GpuPreference gpu_preference_;
// Errors raised by synthesizeGLError().
std::vector<WGC3Denum> synthetic_errors_;
base::WeakPtrFactory<WebGraphicsContext3DCommandBufferImpl> weak_ptr_factory_;
bool initialized_;
scoped_ptr<CommandBufferProxyImpl> command_buffer_;
scoped_ptr<gpu::gles2::GLES2CmdHelper> gles2_helper_;
scoped_ptr<gpu::TransferBuffer> transfer_buffer_;
gpu::gles2::GLES2Interface* gl_;
scoped_ptr<gpu::gles2::GLES2Implementation> real_gl_;
scoped_ptr<gpu::gles2::GLES2Interface> trace_gl_;
Error last_error_;
bool bind_generates_resources_;
SharedMemoryLimits mem_limits_;
uint32_t flush_id_;
};
} // namespace content
#endif // CONTENT_COMMON_GPU_CLIENT_WEBGRAPHICSCONTEXT3D_COMMAND_BUFFER_IMPL_H_
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