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android / platform / external / chromium_org / 3551c9c / . / content / common / gpu / client / webgraphicscontext3d_command_buffer_impl.cc
blob: 80f4ebd043d36b6ccbb2052ebf9b4fa10564dac9 [file] [log] [blame]
// 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.
#include "content/common/gpu/client/webgraphicscontext3d_command_buffer_impl.h"
#include "third_party/khronos/GLES2/gl2.h"
#ifndef GL_GLEXT_PROTOTYPES
#define GL_GLEXT_PROTOTYPES 1
#endif
#include "third_party/khronos/GLES2/gl2ext.h"
#include <algorithm>
#include <set>
#include "base/bind.h"
#include "base/command_line.h"
#include "base/debug/trace_event.h"
#include "base/lazy_instance.h"
#include "base/logging.h"
#include "base/message_loop/message_loop.h"
#include "base/metrics/field_trial.h"
#include "base/metrics/histogram.h"
#include "base/synchronization/lock.h"
#include "content/common/gpu/client/gpu_channel_host.h"
#include "content/common/gpu/gpu_memory_allocation.h"
#include "content/common/gpu/gpu_process_launch_causes.h"
#include "content/public/common/content_constants.h"
#include "content/public/common/content_switches.h"
#include "gpu/GLES2/gl2extchromium.h"
#include "gpu/command_buffer/client/gles2_cmd_helper.h"
#include "gpu/command_buffer/client/gles2_implementation.h"
#include "gpu/command_buffer/client/gles2_lib.h"
#include "gpu/command_buffer/client/gles2_trace_implementation.h"
#include "gpu/command_buffer/client/transfer_buffer.h"
#include "gpu/command_buffer/common/constants.h"
#include "gpu/command_buffer/common/mailbox.h"
#include "gpu/ipc/command_buffer_proxy.h"
#include "third_party/skia/include/core/SkTypes.h"
#include "webkit/common/gpu/gl_bindings_skia_cmd_buffer.h"
namespace content {
static base::LazyInstance<base::Lock>::Leaky
g_all_shared_contexts_lock = LAZY_INSTANCE_INITIALIZER;
static base::LazyInstance<std::set<WebGraphicsContext3DCommandBufferImpl*> >
g_all_shared_contexts = LAZY_INSTANCE_INITIALIZER;
namespace {
void ClearSharedContextsIfInShareSet(
WebGraphicsContext3DCommandBufferImpl* context) {
// If the given context isn't in the share set, that means that it
// or another context it was previously sharing with already
// provoked a lost context. Other contexts might have since been
// successfully created and added to the share set, so do not clear
// out the share set unless we know that all the contexts in there
// are supposed to be lost simultaneously.
base::AutoLock lock(g_all_shared_contexts_lock.Get());
std::set<WebGraphicsContext3DCommandBufferImpl*>* share_set =
g_all_shared_contexts.Pointer();
for (std::set<WebGraphicsContext3DCommandBufferImpl*>::iterator iter =
share_set->begin(); iter != share_set->end(); ++iter) {
if (context == *iter) {
share_set->clear();
return;
}
}
}
size_t ClampUint64ToSizeT(uint64 value) {
value = std::min(value,
static_cast<uint64>(std::numeric_limits<size_t>::max()));
return static_cast<size_t>(value);
}
// Singleton used to initialize and terminate the gles2 library.
class GLES2Initializer {
public:
GLES2Initializer() {
gles2::Initialize();
}
~GLES2Initializer() {
gles2::Terminate();
}
private:
DISALLOW_COPY_AND_ASSIGN(GLES2Initializer);
};
////////////////////////////////////////////////////////////////////////////////
base::LazyInstance<GLES2Initializer> g_gles2_initializer =
LAZY_INSTANCE_INITIALIZER;
////////////////////////////////////////////////////////////////////////////////
} // namespace anonymous
// Helper macros to reduce the amount of code.
#define DELEGATE_TO_GL(name, glname) \
void WebGraphicsContext3DCommandBufferImpl::name() { \
gl_->glname(); \
}
#define DELEGATE_TO_GL_R(name, glname, rt) \
rt WebGraphicsContext3DCommandBufferImpl::name() { \
return gl_->glname(); \
}
#define DELEGATE_TO_GL_1(name, glname, t1) \
void WebGraphicsContext3DCommandBufferImpl::name(t1 a1) { \
gl_->glname(a1); \
}
#define DELEGATE_TO_GL_1R(name, glname, t1, rt) \
rt WebGraphicsContext3DCommandBufferImpl::name(t1 a1) { \
return gl_->glname(a1); \
}
#define DELEGATE_TO_GL_1RB(name, glname, t1, rt) \
rt WebGraphicsContext3DCommandBufferImpl::name(t1 a1) { \
return gl_->glname(a1) ? true : false; \
}
#define DELEGATE_TO_GL_2(name, glname, t1, t2) \
void WebGraphicsContext3DCommandBufferImpl::name(t1 a1, t2 a2) { \
gl_->glname(a1, a2); \
}
#define DELEGATE_TO_GL_2R(name, glname, t1, t2, rt) \
rt WebGraphicsContext3DCommandBufferImpl::name(t1 a1, t2 a2) { \
return gl_->glname(a1, a2); \
}
#define DELEGATE_TO_GL_3(name, glname, t1, t2, t3) \
void WebGraphicsContext3DCommandBufferImpl::name(t1 a1, t2 a2, t3 a3) { \
gl_->glname(a1, a2, a3); \
}
#define DELEGATE_TO_GL_4(name, glname, t1, t2, t3, t4) \
void WebGraphicsContext3DCommandBufferImpl::name(t1 a1, t2 a2, t3 a3, \
t4 a4) { \
gl_->glname(a1, a2, a3, a4); \
}
#define DELEGATE_TO_GL_4R(name, glname, t1, t2, t3, t4, rt) \
rt WebGraphicsContext3DCommandBufferImpl::name(t1 a1, t2 a2, t3 a3, \
t4 a4) { \
return gl_->glname(a1, a2, a3, a4); \
}
#define DELEGATE_TO_GL_5(name, glname, t1, t2, t3, t4, t5) \
void WebGraphicsContext3DCommandBufferImpl::name(t1 a1, t2 a2, t3 a3, \
t4 a4, t5 a5) { \
gl_->glname(a1, a2, a3, a4, a5); \
}
#define DELEGATE_TO_GL_6(name, glname, t1, t2, t3, t4, t5, t6) \
void WebGraphicsContext3DCommandBufferImpl::name(t1 a1, t2 a2, t3 a3, \
t4 a4, t5 a5, t6 a6) { \
gl_->glname(a1, a2, a3, a4, a5, a6); \
}
#define DELEGATE_TO_GL_7(name, glname, t1, t2, t3, t4, t5, t6, t7) \
void WebGraphicsContext3DCommandBufferImpl::name(t1 a1, t2 a2, t3 a3, \
t4 a4, t5 a5, t6 a6, \
t7 a7) { \
gl_->glname(a1, a2, a3, a4, a5, a6, a7); \
}
#define DELEGATE_TO_GL_8(name, glname, t1, t2, t3, t4, t5, t6, t7, t8) \
void WebGraphicsContext3DCommandBufferImpl::name(t1 a1, t2 a2, t3 a3, \
t4 a4, t5 a5, t6 a6, \
t7 a7, t8 a8) { \
gl_->glname(a1, a2, a3, a4, a5, a6, a7, a8); \
}
#define DELEGATE_TO_GL_9(name, glname, t1, t2, t3, t4, t5, t6, t7, t8, t9) \
void WebGraphicsContext3DCommandBufferImpl::name(t1 a1, t2 a2, t3 a3, \
t4 a4, t5 a5, t6 a6, \
t7 a7, t8 a8, t9 a9) { \
gl_->glname(a1, a2, a3, a4, a5, a6, a7, a8, a9); \
}
class WebGraphicsContext3DErrorMessageCallback
: public gpu::gles2::GLES2Implementation::ErrorMessageCallback {
public:
WebGraphicsContext3DErrorMessageCallback(
WebGraphicsContext3DCommandBufferImpl* context)
: graphics_context_(context) {
}
virtual void OnErrorMessage(const char* msg, int id) OVERRIDE;
private:
WebGraphicsContext3DCommandBufferImpl* graphics_context_;
DISALLOW_COPY_AND_ASSIGN(WebGraphicsContext3DErrorMessageCallback);
};
void WebGraphicsContext3DErrorMessageCallback::OnErrorMessage(
const char* msg, int id) {
graphics_context_->OnErrorMessage(msg, id);
}
WebGraphicsContext3DCommandBufferImpl::WebGraphicsContext3DCommandBufferImpl(
int surface_id,
const GURL& active_url,
GpuChannelHostFactory* factory,
const base::WeakPtr<WebGraphicsContext3DSwapBuffersClient>& swap_client)
: initialize_failed_(false),
factory_(factory),
visible_(false),
free_command_buffer_when_invisible_(false),
host_(NULL),
surface_id_(surface_id),
active_url_(active_url),
swap_client_(swap_client),
context_lost_callback_(0),
context_lost_reason_(GL_NO_ERROR),
error_message_callback_(0),
swapbuffers_complete_callback_(0),
gpu_preference_(gfx::PreferIntegratedGpu),
cached_width_(0),
cached_height_(0),
weak_ptr_factory_(this),
initialized_(false),
gl_(NULL),
frame_number_(0),
bind_generates_resources_(false),
use_echo_for_swap_ack_(true),
command_buffer_size_(0),
start_transfer_buffer_size_(0),
min_transfer_buffer_size_(0),
max_transfer_buffer_size_(0),
mapped_memory_limit_(gpu::gles2::GLES2Implementation::kNoLimit) {
#if (defined(OS_MACOSX) || defined(OS_WIN)) && !defined(USE_AURA)
// Get ViewMsg_SwapBuffers_ACK from browser for single-threaded path.
const CommandLine& command_line = *CommandLine::ForCurrentProcess();
use_echo_for_swap_ack_ =
command_line.HasSwitch(switches::kEnableThreadedCompositing);
#endif
}
WebGraphicsContext3DCommandBufferImpl::
~WebGraphicsContext3DCommandBufferImpl() {
if (real_gl_) {
real_gl_->SetErrorMessageCallback(NULL);
}
{
base::AutoLock lock(g_all_shared_contexts_lock.Get());
g_all_shared_contexts.Pointer()->erase(this);
}
Destroy();
}
bool WebGraphicsContext3DCommandBufferImpl::InitializeWithDefaultBufferSizes(
const WebGraphicsContext3D::Attributes& attributes,
bool bind_generates_resources,
CauseForGpuLaunch cause) {
return Initialize(attributes,
bind_generates_resources,
cause,
kDefaultCommandBufferSize,
kDefaultStartTransferBufferSize,
kDefaultMinTransferBufferSize,
kDefaultMaxTransferBufferSize,
gpu::gles2::GLES2Implementation::kNoLimit);
}
bool WebGraphicsContext3DCommandBufferImpl::Initialize(
const WebGraphicsContext3D::Attributes& attributes,
bool bind_generates_resources,
CauseForGpuLaunch cause,
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_limit) {
TRACE_EVENT0("gpu", "WebGfxCtx3DCmdBfrImpl::initialize");
attributes_ = attributes;
bind_generates_resources_ = bind_generates_resources;
DCHECK(!command_buffer_);
if (!factory_)
return false;
if (attributes.preferDiscreteGPU)
gpu_preference_ = gfx::PreferDiscreteGpu;
host_ = factory_->EstablishGpuChannelSync(cause);
if (!host_.get())
return false;
command_buffer_size_ = command_buffer_size;
start_transfer_buffer_size_ = start_transfer_buffer_size;
min_transfer_buffer_size_ = min_transfer_buffer_size;
max_transfer_buffer_size_ = max_transfer_buffer_size;
mapped_memory_limit_ = mapped_memory_limit;
return true;
}
bool WebGraphicsContext3DCommandBufferImpl::MaybeInitializeGL(
const char* allowed_extensions) {
if (initialized_)
return true;
if (initialize_failed_)
return false;
TRACE_EVENT0("gpu", "WebGfxCtx3DCmdBfrImpl::MaybeInitializeGL");
const char* preferred_extensions = "*";
if (!CreateContext(surface_id_ != 0,
allowed_extensions ?
allowed_extensions : preferred_extensions)) {
Destroy();
initialize_failed_ = true;
return false;
}
// TODO(twiz): This code is too fragile in that it assumes that only WebGL
// contexts will request noExtensions.
if (gl_ && attributes_.noExtensions)
gl_->EnableFeatureCHROMIUM("webgl_enable_glsl_webgl_validation");
command_buffer_->SetChannelErrorCallback(
base::Bind(&WebGraphicsContext3DCommandBufferImpl::OnContextLost,
weak_ptr_factory_.GetWeakPtr()));
command_buffer_->SetOnConsoleMessageCallback(
base::Bind(&WebGraphicsContext3DCommandBufferImpl::OnErrorMessage,
weak_ptr_factory_.GetWeakPtr()));
client_error_message_callback_.reset(
new WebGraphicsContext3DErrorMessageCallback(this));
real_gl_->SetErrorMessageCallback(client_error_message_callback_.get());
const CommandLine& command_line = *CommandLine::ForCurrentProcess();
free_command_buffer_when_invisible_ =
command_line.HasSwitch(switches::kEnablePruneGpuCommandBuffers);
// Set attributes_ from created offscreen context.
{
static const int pcount = 4;
static const GLenum pnames[pcount] = {
GL_ALPHA_BITS,
GL_DEPTH_BITS,
GL_STENCIL_BITS,
GL_SAMPLE_BUFFERS,
};
GLint pvalues[pcount] = { 0, 0, 0, 0 };
gl_->GetMultipleIntegervCHROMIUM(pnames, pcount,
pvalues, sizeof(pvalues));
attributes_.alpha = pvalues[0] > 0;
attributes_.depth = pvalues[1] > 0;
attributes_.stencil = pvalues[2] > 0;
attributes_.antialias = pvalues[3] > 0;
}
visible_ = true;
initialized_ = true;
return true;
}
bool WebGraphicsContext3DCommandBufferImpl::InitializeCommandBuffer(
bool onscreen,
const char* allowed_extensions) {
if (!host_.get())
return false;
// We need to lock g_all_shared_contexts to ensure that the context we picked
// for our share group isn't deleted.
// (There's also a lock in our destructor.)
base::AutoLock lock(g_all_shared_contexts_lock.Get());
CommandBufferProxyImpl* share_group = NULL;
if (attributes_.shareResources) {
WebGraphicsContext3DCommandBufferImpl* share_group_context =
g_all_shared_contexts.Pointer()->empty() ?
NULL : *g_all_shared_contexts.Pointer()->begin();
share_group = share_group_context ?
share_group_context->command_buffer_.get() : NULL;
}
std::vector<int32> attribs;
attribs.push_back(ALPHA_SIZE);
attribs.push_back(attributes_.alpha ? 8 : 0);
attribs.push_back(DEPTH_SIZE);
attribs.push_back(attributes_.depth ? 24 : 0);
attribs.push_back(STENCIL_SIZE);
attribs.push_back(attributes_.stencil ? 8 : 0);
attribs.push_back(SAMPLES);
attribs.push_back(attributes_.antialias ? 4 : 0);
attribs.push_back(SAMPLE_BUFFERS);
attribs.push_back(attributes_.antialias ? 1 : 0);
attribs.push_back(NONE);
// Create a proxy to a command buffer in the GPU process.
if (onscreen) {
command_buffer_.reset(host_->CreateViewCommandBuffer(
surface_id_,
share_group,
allowed_extensions,
attribs,
active_url_,
gpu_preference_));
} else {
command_buffer_.reset(host_->CreateOffscreenCommandBuffer(
gfx::Size(1, 1),
share_group,
allowed_extensions,
attribs,
active_url_,
gpu_preference_));
}
if (!command_buffer_)
return false;
// Initialize the command buffer.
return command_buffer_->Initialize();
}
bool WebGraphicsContext3DCommandBufferImpl::CreateContext(
bool onscreen,
const char* allowed_extensions) {
// Ensure the gles2 library is initialized first in a thread safe way.
g_gles2_initializer.Get();
if (!command_buffer_ &&
!InitializeCommandBuffer(onscreen,
allowed_extensions)) {
return false;
}
// Create the GLES2 helper, which writes the command buffer protocol.
gles2_helper_.reset(new gpu::gles2::GLES2CmdHelper(command_buffer_.get()));
if (!gles2_helper_->Initialize(command_buffer_size_))
return false;
if (attributes_.noAutomaticFlushes)
gles2_helper_->SetAutomaticFlushes(false);
// Create a transfer buffer used to copy resources between the renderer
// process and the GPU process.
transfer_buffer_ .reset(new gpu::TransferBuffer(gles2_helper_.get()));
scoped_ptr<base::AutoLock> lock;
scoped_refptr<gpu::gles2::ShareGroup> share_group;
if (attributes_.shareResources) {
// Make sure two clients don't try to create a new ShareGroup
// simultaneously.
lock.reset(new base::AutoLock(g_all_shared_contexts_lock.Get()));
if (!g_all_shared_contexts.Pointer()->empty()) {
share_group = (*g_all_shared_contexts.Pointer()->begin())
->GetImplementation()->share_group();
DCHECK(share_group);
}
}
// Create the object exposing the OpenGL API.
real_gl_.reset(new gpu::gles2::GLES2Implementation(
gles2_helper_.get(),
share_group,
transfer_buffer_.get(),
bind_generates_resources_,
NULL));
gl_ = real_gl_.get();
if (attributes_.shareResources) {
// Don't add ourselves to the list before others can get to our ShareGroup.
g_all_shared_contexts.Pointer()->insert(this);
lock.reset();
}
if (!real_gl_->Initialize(
start_transfer_buffer_size_,
min_transfer_buffer_size_,
max_transfer_buffer_size_,
mapped_memory_limit_)) {
return false;
}
if (CommandLine::ForCurrentProcess()->HasSwitch(
switches::kEnableGpuClientTracing)) {
trace_gl_.reset(new gpu::gles2::GLES2TraceImplementation(gl_));
gl_ = trace_gl_.get();
}
return true;
}
bool WebGraphicsContext3DCommandBufferImpl::makeContextCurrent() {
if (!MaybeInitializeGL(NULL))
return false;
gles2::SetGLContext(gl_);
if (command_buffer_->GetLastError() != gpu::error::kNoError)
return false;
return true;
}
int WebGraphicsContext3DCommandBufferImpl::width() {
return cached_width_;
}
int WebGraphicsContext3DCommandBufferImpl::height() {
return cached_height_;
}
DELEGATE_TO_GL_R(insertSyncPoint, InsertSyncPointCHROMIUM, unsigned int)
void WebGraphicsContext3DCommandBufferImpl::Destroy() {
if (gl_) {
// First flush the context to ensure that any pending frees of resources
// are completed. Otherwise, if this context is part of a share group,
// those resources might leak. Also, any remaining side effects of commands
// issued on this context might not be visible to other contexts in the
// share group.
gl_->Flush();
gl_ = NULL;
}
trace_gl_.reset();
real_gl_.reset();
transfer_buffer_.reset();
gles2_helper_.reset();
real_gl_.reset();
if (command_buffer_) {
if (host_.get())
host_->DestroyCommandBuffer(command_buffer_.release());
command_buffer_.reset();
}
host_ = NULL;
}
// TODO(apatrick,piman): This should be renamed to something clearer.
int WebGraphicsContext3DCommandBufferImpl::GetGPUProcessID() {
return host_.get() ? host_->gpu_host_id() : 0;
}
int WebGraphicsContext3DCommandBufferImpl::GetChannelID() {
return host_.get() ? host_->client_id() : 0;
}
int WebGraphicsContext3DCommandBufferImpl::GetContextID() {
return command_buffer_->GetRouteID();
}
void WebGraphicsContext3DCommandBufferImpl::prepareTexture() {
TRACE_EVENT1("gpu",
"WebGraphicsContext3DCommandBufferImpl::SwapBuffers",
"frame", frame_number_);
frame_number_++;
// Copies the contents of the off-screen render target into the texture
// used by the compositor.
if (ShouldUseSwapClient())
swap_client_->OnViewContextSwapBuffersPosted();
if (command_buffer_->GetLastState().error == gpu::error::kNoError)
gl_->SwapBuffers();
if (use_echo_for_swap_ack_) {
command_buffer_->Echo(base::Bind(
&WebGraphicsContext3DCommandBufferImpl::OnSwapBuffersComplete,
weak_ptr_factory_.GetWeakPtr()));
}
#if defined(OS_MACOSX)
// It appears that making the compositor's on-screen context current on
// other platforms implies this flush. TODO(kbr): this means that the
// TOUCH build and, in the future, other platforms might need this.
gl_->Flush();
#endif
}
void WebGraphicsContext3DCommandBufferImpl::postSubBufferCHROMIUM(
int x, int y, int width, int height) {
// Same flow control as WebGraphicsContext3DCommandBufferImpl::prepareTexture
// (see above).
if (ShouldUseSwapClient())
swap_client_->OnViewContextSwapBuffersPosted();
gl_->PostSubBufferCHROMIUM(x, y, width, height);
command_buffer_->Echo(base::Bind(
&WebGraphicsContext3DCommandBufferImpl::OnSwapBuffersComplete,
weak_ptr_factory_.GetWeakPtr()));
}
void WebGraphicsContext3DCommandBufferImpl::reshape(int width, int height) {
reshapeWithScaleFactor(width, height, 1.f);
}
void WebGraphicsContext3DCommandBufferImpl::reshapeWithScaleFactor(
int width, int height, float scale_factor) {
cached_width_ = width;
cached_height_ = height;
gl_->ResizeCHROMIUM(width, height, scale_factor);
}
void WebGraphicsContext3DCommandBufferImpl::synthesizeGLError(
WGC3Denum error) {
if (std::find(synthetic_errors_.begin(), synthetic_errors_.end(), error) ==
synthetic_errors_.end()) {
synthetic_errors_.push_back(error);
}
}
DELEGATE_TO_GL_4R(mapBufferSubDataCHROMIUM, MapBufferSubDataCHROMIUM, WGC3Denum,
WGC3Dintptr, WGC3Dsizeiptr, WGC3Denum, void*)
DELEGATE_TO_GL_1(unmapBufferSubDataCHROMIUM, UnmapBufferSubDataCHROMIUM,
const void*)
void* WebGraphicsContext3DCommandBufferImpl::mapTexSubImage2DCHROMIUM(
WGC3Denum target,
WGC3Dint level,
WGC3Dint xoffset,
WGC3Dint yoffset,
WGC3Dsizei width,
WGC3Dsizei height,
WGC3Denum format,
WGC3Denum type,
WGC3Denum access) {
return gl_->MapTexSubImage2DCHROMIUM(
target, level, xoffset, yoffset, width, height, format, type, access);
}
DELEGATE_TO_GL_1(unmapTexSubImage2DCHROMIUM, UnmapTexSubImage2DCHROMIUM,
const void*)
void WebGraphicsContext3DCommandBufferImpl::setVisibilityCHROMIUM(
bool visible) {
gl_->Flush();
visible_ = visible;
command_buffer_->SetSurfaceVisible(visible);
if (!visible)
real_gl_->FreeEverything();
}
DELEGATE_TO_GL_3(discardFramebufferEXT, DiscardFramebufferEXT, WGC3Denum,
WGC3Dsizei, const WGC3Denum*)
void WebGraphicsContext3DCommandBufferImpl::discardBackbufferCHROMIUM() {
gl_->Flush();
command_buffer_->DiscardBackbuffer();
}
void WebGraphicsContext3DCommandBufferImpl::ensureBackbufferCHROMIUM() {
gl_->Flush();
command_buffer_->EnsureBackbuffer();
}
void WebGraphicsContext3DCommandBufferImpl::sendManagedMemoryStatsCHROMIUM(
const WebGraphicsManagedMemoryStats* stats)
{
CHECK(command_buffer_);
command_buffer_->SendManagedMemoryStats(GpuManagedMemoryStats(
stats->bytesVisible,
stats->bytesVisibleAndNearby,
stats->bytesAllocated,
stats->backbufferRequested));
}
void WebGraphicsContext3DCommandBufferImpl::
setMemoryAllocationChangedCallbackCHROMIUM(
WebGraphicsMemoryAllocationChangedCallbackCHROMIUM* callback) {
if (!command_buffer_)
return;
if (callback)
command_buffer_->SetMemoryAllocationChangedCallback(base::Bind(
&WebGraphicsContext3DCommandBufferImpl::OnMemoryAllocationChanged,
weak_ptr_factory_.GetWeakPtr(),
callback));
else
command_buffer_->SetMemoryAllocationChangedCallback(
base::Callback<void(const GpuMemoryAllocationForRenderer&)>());
}
void WebGraphicsContext3DCommandBufferImpl::copyTextureToParentTextureCHROMIUM(
WebGLId texture, WebGLId parentTexture) {
NOTIMPLEMENTED();
}
DELEGATE_TO_GL(rateLimitOffscreenContextCHROMIUM,
RateLimitOffscreenContextCHROMIUM)
WebKit::WebString WebGraphicsContext3DCommandBufferImpl::
getRequestableExtensionsCHROMIUM() {
return WebKit::WebString::fromUTF8(
gl_->GetRequestableExtensionsCHROMIUM());
}
DELEGATE_TO_GL_1(requestExtensionCHROMIUM, RequestExtensionCHROMIUM,
const char*)
void WebGraphicsContext3DCommandBufferImpl::blitFramebufferCHROMIUM(
WGC3Dint srcX0, WGC3Dint srcY0, WGC3Dint srcX1, WGC3Dint srcY1,
WGC3Dint dstX0, WGC3Dint dstY0, WGC3Dint dstX1, WGC3Dint dstY1,
WGC3Dbitfield mask, WGC3Denum filter) {
gl_->BlitFramebufferEXT(
srcX0, srcY0, srcX1, srcY1,
dstX0, dstY0, dstX1, dstY1,
mask, filter);
}
DELEGATE_TO_GL_5(renderbufferStorageMultisampleCHROMIUM,
RenderbufferStorageMultisampleEXT, WGC3Denum, WGC3Dsizei,
WGC3Denum, WGC3Dsizei, WGC3Dsizei)
DELEGATE_TO_GL_1R(createStreamTextureCHROMIUM, CreateStreamTextureCHROMIUM,
WebGLId, WebGLId)
DELEGATE_TO_GL_1(destroyStreamTextureCHROMIUM, DestroyStreamTextureCHROMIUM,
WebGLId)
DELEGATE_TO_GL_1(activeTexture, ActiveTexture, WGC3Denum)
DELEGATE_TO_GL_2(attachShader, AttachShader, WebGLId, WebGLId)
DELEGATE_TO_GL_3(bindAttribLocation, BindAttribLocation, WebGLId,
WGC3Duint, const WGC3Dchar*)
DELEGATE_TO_GL_2(bindBuffer, BindBuffer, WGC3Denum, WebGLId)
DELEGATE_TO_GL_2(bindFramebuffer, BindFramebuffer, WGC3Denum, WebGLId)
DELEGATE_TO_GL_2(bindRenderbuffer, BindRenderbuffer, WGC3Denum, WebGLId)
DELEGATE_TO_GL_2(bindTexture, BindTexture, WGC3Denum, WebGLId)
DELEGATE_TO_GL_4(blendColor, BlendColor,
WGC3Dclampf, WGC3Dclampf, WGC3Dclampf, WGC3Dclampf)
DELEGATE_TO_GL_1(blendEquation, BlendEquation, WGC3Denum)
DELEGATE_TO_GL_2(blendEquationSeparate, BlendEquationSeparate,
WGC3Denum, WGC3Denum)
DELEGATE_TO_GL_2(blendFunc, BlendFunc, WGC3Denum, WGC3Denum)
DELEGATE_TO_GL_4(blendFuncSeparate, BlendFuncSeparate,
WGC3Denum, WGC3Denum, WGC3Denum, WGC3Denum)
DELEGATE_TO_GL_4(bufferData, BufferData,
WGC3Denum, WGC3Dsizeiptr, const void*, WGC3Denum)
DELEGATE_TO_GL_4(bufferSubData, BufferSubData,
WGC3Denum, WGC3Dintptr, WGC3Dsizeiptr, const void*)
DELEGATE_TO_GL_1R(checkFramebufferStatus, CheckFramebufferStatus,
WGC3Denum, WGC3Denum)
DELEGATE_TO_GL_1(clear, Clear, WGC3Dbitfield)
DELEGATE_TO_GL_4(clearColor, ClearColor,
WGC3Dclampf, WGC3Dclampf, WGC3Dclampf, WGC3Dclampf)
DELEGATE_TO_GL_1(clearDepth, ClearDepthf, WGC3Dclampf)
DELEGATE_TO_GL_1(clearStencil, ClearStencil, WGC3Dint)
DELEGATE_TO_GL_4(colorMask, ColorMask,
WGC3Dboolean, WGC3Dboolean, WGC3Dboolean, WGC3Dboolean)
DELEGATE_TO_GL_1(compileShader, CompileShader, WebGLId)
DELEGATE_TO_GL_8(compressedTexImage2D, CompressedTexImage2D,
WGC3Denum, WGC3Dint, WGC3Denum, WGC3Dint, WGC3Dint,
WGC3Dsizei, WGC3Dsizei, const void*)
DELEGATE_TO_GL_9(compressedTexSubImage2D, CompressedTexSubImage2D,
WGC3Denum, WGC3Dint, WGC3Dint, WGC3Dint, WGC3Dint, WGC3Dint,
WGC3Denum, WGC3Dsizei, const void*)
DELEGATE_TO_GL_8(copyTexImage2D, CopyTexImage2D,
WGC3Denum, WGC3Dint, WGC3Denum, WGC3Dint, WGC3Dint,
WGC3Dsizei, WGC3Dsizei, WGC3Dint)
DELEGATE_TO_GL_8(copyTexSubImage2D, CopyTexSubImage2D,
WGC3Denum, WGC3Dint, WGC3Dint, WGC3Dint, WGC3Dint, WGC3Dint,
WGC3Dsizei, WGC3Dsizei)
DELEGATE_TO_GL_1(cullFace, CullFace, WGC3Denum)
DELEGATE_TO_GL_1(depthFunc, DepthFunc, WGC3Denum)
DELEGATE_TO_GL_1(depthMask, DepthMask, WGC3Dboolean)
DELEGATE_TO_GL_2(depthRange, DepthRangef, WGC3Dclampf, WGC3Dclampf)
DELEGATE_TO_GL_2(detachShader, DetachShader, WebGLId, WebGLId)
DELEGATE_TO_GL_1(disable, Disable, WGC3Denum)
DELEGATE_TO_GL_1(disableVertexAttribArray, DisableVertexAttribArray,
WGC3Duint)
DELEGATE_TO_GL_3(drawArrays, DrawArrays, WGC3Denum, WGC3Dint, WGC3Dsizei)
void WebGraphicsContext3DCommandBufferImpl::drawElements(WGC3Denum mode,
WGC3Dsizei count,
WGC3Denum type,
WGC3Dintptr offset) {
gl_->DrawElements(
mode, count, type,
reinterpret_cast<void*>(static_cast<intptr_t>(offset)));
}
DELEGATE_TO_GL_1(enable, Enable, WGC3Denum)
DELEGATE_TO_GL_1(enableVertexAttribArray, EnableVertexAttribArray,
WGC3Duint)
void WebGraphicsContext3DCommandBufferImpl::finish() {
gl_->Finish();
if (!visible_ && free_command_buffer_when_invisible_)
real_gl_->FreeEverything();
}
void WebGraphicsContext3DCommandBufferImpl::flush() {
gl_->Flush();
if (!visible_ && free_command_buffer_when_invisible_)
real_gl_->FreeEverything();
}
DELEGATE_TO_GL_4(framebufferRenderbuffer, FramebufferRenderbuffer,
WGC3Denum, WGC3Denum, WGC3Denum, WebGLId)
DELEGATE_TO_GL_5(framebufferTexture2D, FramebufferTexture2D,
WGC3Denum, WGC3Denum, WGC3Denum, WebGLId, WGC3Dint)
DELEGATE_TO_GL_1(frontFace, FrontFace, WGC3Denum)
DELEGATE_TO_GL_1(generateMipmap, GenerateMipmap, WGC3Denum)
bool WebGraphicsContext3DCommandBufferImpl::getActiveAttrib(
WebGLId program, WGC3Duint index, ActiveInfo& info) {
if (!program) {
synthesizeGLError(GL_INVALID_VALUE);
return false;
}
GLint max_name_length = -1;
gl_->GetProgramiv(
program, GL_ACTIVE_ATTRIBUTE_MAX_LENGTH, &max_name_length);
if (max_name_length < 0)
return false;
scoped_ptr<GLchar[]> name(new GLchar[max_name_length]);
if (!name) {
synthesizeGLError(GL_OUT_OF_MEMORY);
return false;
}
GLsizei length = 0;
GLint size = -1;
GLenum type = 0;
gl_->GetActiveAttrib(
program, index, max_name_length, &length, &size, &type, name.get());
if (size < 0) {
return false;
}
info.name = WebKit::WebString::fromUTF8(name.get(), length);
info.type = type;
info.size = size;
return true;
}
bool WebGraphicsContext3DCommandBufferImpl::getActiveUniform(
WebGLId program, WGC3Duint index, ActiveInfo& info) {
GLint max_name_length = -1;
gl_->GetProgramiv(
program, GL_ACTIVE_UNIFORM_MAX_LENGTH, &max_name_length);
if (max_name_length < 0)
return false;
scoped_ptr<GLchar[]> name(new GLchar[max_name_length]);
if (!name) {
synthesizeGLError(GL_OUT_OF_MEMORY);
return false;
}
GLsizei length = 0;
GLint size = -1;
GLenum type = 0;
gl_->GetActiveUniform(
program, index, max_name_length, &length, &size, &type, name.get());
if (size < 0) {
return false;
}
info.name = WebKit::WebString::fromUTF8(name.get(), length);
info.type = type;
info.size = size;
return true;
}
DELEGATE_TO_GL_4(getAttachedShaders, GetAttachedShaders,
WebGLId, WGC3Dsizei, WGC3Dsizei*, WebGLId*)
DELEGATE_TO_GL_2R(getAttribLocation, GetAttribLocation,
WebGLId, const WGC3Dchar*, WGC3Dint)
DELEGATE_TO_GL_2(getBooleanv, GetBooleanv, WGC3Denum, WGC3Dboolean*)
DELEGATE_TO_GL_3(getBufferParameteriv, GetBufferParameteriv,
WGC3Denum, WGC3Denum, WGC3Dint*)
WebKit::WebGraphicsContext3D::Attributes
WebGraphicsContext3DCommandBufferImpl::getContextAttributes() {
return attributes_;
}
WGC3Denum WebGraphicsContext3DCommandBufferImpl::getError() {
if (!synthetic_errors_.empty()) {
std::vector<WGC3Denum>::iterator iter = synthetic_errors_.begin();
WGC3Denum err = *iter;
synthetic_errors_.erase(iter);
return err;
}
return gl_->GetError();
}
bool WebGraphicsContext3DCommandBufferImpl::isContextLost() {
return initialize_failed_ ||
(command_buffer_ && IsCommandBufferContextLost()) ||
context_lost_reason_ != GL_NO_ERROR;
}
DELEGATE_TO_GL_2(getFloatv, GetFloatv, WGC3Denum, WGC3Dfloat*)
DELEGATE_TO_GL_4(getFramebufferAttachmentParameteriv,
GetFramebufferAttachmentParameteriv,
WGC3Denum, WGC3Denum, WGC3Denum, WGC3Dint*)
DELEGATE_TO_GL_2(getIntegerv, GetIntegerv, WGC3Denum, WGC3Dint*)
DELEGATE_TO_GL_3(getProgramiv, GetProgramiv, WebGLId, WGC3Denum, WGC3Dint*)
WebKit::WebString WebGraphicsContext3DCommandBufferImpl::getProgramInfoLog(
WebGLId program) {
GLint logLength = 0;
gl_->GetProgramiv(program, GL_INFO_LOG_LENGTH, &logLength);
if (!logLength)
return WebKit::WebString();
scoped_ptr<GLchar[]> log(new GLchar[logLength]);
if (!log)
return WebKit::WebString();
GLsizei returnedLogLength = 0;
gl_->GetProgramInfoLog(
program, logLength, &returnedLogLength, log.get());
DCHECK_EQ(logLength, returnedLogLength + 1);
WebKit::WebString res =
WebKit::WebString::fromUTF8(log.get(), returnedLogLength);
return res;
}
DELEGATE_TO_GL_3(getRenderbufferParameteriv, GetRenderbufferParameteriv,
WGC3Denum, WGC3Denum, WGC3Dint*)
DELEGATE_TO_GL_3(getShaderiv, GetShaderiv, WebGLId, WGC3Denum, WGC3Dint*)
WebKit::WebString WebGraphicsContext3DCommandBufferImpl::getShaderInfoLog(
WebGLId shader) {
GLint logLength = 0;
gl_->GetShaderiv(shader, GL_INFO_LOG_LENGTH, &logLength);
if (!logLength)
return WebKit::WebString();
scoped_ptr<GLchar[]> log(new GLchar[logLength]);
if (!log)
return WebKit::WebString();
GLsizei returnedLogLength = 0;
gl_->GetShaderInfoLog(
shader, logLength, &returnedLogLength, log.get());
DCHECK_EQ(logLength, returnedLogLength + 1);
WebKit::WebString res =
WebKit::WebString::fromUTF8(log.get(), returnedLogLength);
return res;
}
DELEGATE_TO_GL_4(getShaderPrecisionFormat, GetShaderPrecisionFormat,
WGC3Denum, WGC3Denum, WGC3Dint*, WGC3Dint*)
WebKit::WebString WebGraphicsContext3DCommandBufferImpl::getShaderSource(
WebGLId shader) {
GLint logLength = 0;
gl_->GetShaderiv(shader, GL_SHADER_SOURCE_LENGTH, &logLength);
if (!logLength)
return WebKit::WebString();
scoped_ptr<GLchar[]> log(new GLchar[logLength]);
if (!log)
return WebKit::WebString();
GLsizei returnedLogLength = 0;
gl_->GetShaderSource(
shader, logLength, &returnedLogLength, log.get());
if (!returnedLogLength)
return WebKit::WebString();
DCHECK_EQ(logLength, returnedLogLength + 1);
WebKit::WebString res =
WebKit::WebString::fromUTF8(log.get(), returnedLogLength);
return res;
}
WebKit::WebString WebGraphicsContext3DCommandBufferImpl::
getTranslatedShaderSourceANGLE(WebGLId shader) {
GLint logLength = 0;
gl_->GetShaderiv(
shader, GL_TRANSLATED_SHADER_SOURCE_LENGTH_ANGLE, &logLength);
if (!logLength)
return WebKit::WebString();
scoped_ptr<GLchar[]> log(new GLchar[logLength]);
if (!log)
return WebKit::WebString();
GLsizei returnedLogLength = 0;
gl_->GetTranslatedShaderSourceANGLE(
shader, logLength, &returnedLogLength, log.get());
if (!returnedLogLength)
return WebKit::WebString();
DCHECK_EQ(logLength, returnedLogLength + 1);
WebKit::WebString res =
WebKit::WebString::fromUTF8(log.get(), returnedLogLength);
return res;
}
WebKit::WebString WebGraphicsContext3DCommandBufferImpl::getString(
WGC3Denum name) {
return WebKit::WebString::fromUTF8(
reinterpret_cast<const char*>(gl_->GetString(name)));
}
DELEGATE_TO_GL_3(getTexParameterfv, GetTexParameterfv,
WGC3Denum, WGC3Denum, WGC3Dfloat*)
DELEGATE_TO_GL_3(getTexParameteriv, GetTexParameteriv,
WGC3Denum, WGC3Denum, WGC3Dint*)
DELEGATE_TO_GL_3(getUniformfv, GetUniformfv, WebGLId, WGC3Dint, WGC3Dfloat*)
DELEGATE_TO_GL_3(getUniformiv, GetUniformiv, WebGLId, WGC3Dint, WGC3Dint*)
DELEGATE_TO_GL_2R(getUniformLocation, GetUniformLocation,
WebGLId, const WGC3Dchar*, WGC3Dint)
DELEGATE_TO_GL_3(getVertexAttribfv, GetVertexAttribfv,
WGC3Duint, WGC3Denum, WGC3Dfloat*)
DELEGATE_TO_GL_3(getVertexAttribiv, GetVertexAttribiv,
WGC3Duint, WGC3Denum, WGC3Dint*)
WGC3Dsizeiptr WebGraphicsContext3DCommandBufferImpl::getVertexAttribOffset(
WGC3Duint index, WGC3Denum pname) {
GLvoid* value = NULL;
// NOTE: If pname is ever a value that returns more then 1 element
// this will corrupt memory.
gl_->GetVertexAttribPointerv(index, pname, &value);
return static_cast<WGC3Dsizeiptr>(reinterpret_cast<intptr_t>(value));
}
DELEGATE_TO_GL_2(hint, Hint, WGC3Denum, WGC3Denum)
DELEGATE_TO_GL_1RB(isBuffer, IsBuffer, WebGLId, WGC3Dboolean)
DELEGATE_TO_GL_1RB(isEnabled, IsEnabled, WGC3Denum, WGC3Dboolean)
DELEGATE_TO_GL_1RB(isFramebuffer, IsFramebuffer, WebGLId, WGC3Dboolean)
DELEGATE_TO_GL_1RB(isProgram, IsProgram, WebGLId, WGC3Dboolean)
DELEGATE_TO_GL_1RB(isRenderbuffer, IsRenderbuffer, WebGLId, WGC3Dboolean)
DELEGATE_TO_GL_1RB(isShader, IsShader, WebGLId, WGC3Dboolean)
DELEGATE_TO_GL_1RB(isTexture, IsTexture, WebGLId, WGC3Dboolean)
DELEGATE_TO_GL_1(lineWidth, LineWidth, WGC3Dfloat)
DELEGATE_TO_GL_1(linkProgram, LinkProgram, WebGLId)
DELEGATE_TO_GL_2(pixelStorei, PixelStorei, WGC3Denum, WGC3Dint)
DELEGATE_TO_GL_2(polygonOffset, PolygonOffset, WGC3Dfloat, WGC3Dfloat)
DELEGATE_TO_GL_7(readPixels, ReadPixels,
WGC3Dint, WGC3Dint, WGC3Dsizei, WGC3Dsizei, WGC3Denum,
WGC3Denum, void*)
void WebGraphicsContext3DCommandBufferImpl::releaseShaderCompiler() {
}
DELEGATE_TO_GL_4(renderbufferStorage, RenderbufferStorage,
WGC3Denum, WGC3Denum, WGC3Dsizei, WGC3Dsizei)
DELEGATE_TO_GL_2(sampleCoverage, SampleCoverage, WGC3Dfloat, WGC3Dboolean)
DELEGATE_TO_GL_4(scissor, Scissor, WGC3Dint, WGC3Dint, WGC3Dsizei, WGC3Dsizei)
void WebGraphicsContext3DCommandBufferImpl::shaderSource(
WebGLId shader, const WGC3Dchar* string) {
GLint length = strlen(string);
gl_->ShaderSource(shader, 1, &string, &length);
}
DELEGATE_TO_GL_3(stencilFunc, StencilFunc, WGC3Denum, WGC3Dint, WGC3Duint)
DELEGATE_TO_GL_4(stencilFuncSeparate, StencilFuncSeparate,
WGC3Denum, WGC3Denum, WGC3Dint, WGC3Duint)
DELEGATE_TO_GL_1(stencilMask, StencilMask, WGC3Duint)
DELEGATE_TO_GL_2(stencilMaskSeparate, StencilMaskSeparate,
WGC3Denum, WGC3Duint)
DELEGATE_TO_GL_3(stencilOp, StencilOp,
WGC3Denum, WGC3Denum, WGC3Denum)
DELEGATE_TO_GL_4(stencilOpSeparate, StencilOpSeparate,
WGC3Denum, WGC3Denum, WGC3Denum, WGC3Denum)
DELEGATE_TO_GL_9(texImage2D, TexImage2D,
WGC3Denum, WGC3Dint, WGC3Denum, WGC3Dsizei, WGC3Dsizei,
WGC3Dint, WGC3Denum, WGC3Denum, const void*)
DELEGATE_TO_GL_3(texParameterf, TexParameterf,
WGC3Denum, WGC3Denum, WGC3Dfloat);
static const unsigned int kTextureWrapR = 0x8072;
void WebGraphicsContext3DCommandBufferImpl::texParameteri(
WGC3Denum target, WGC3Denum pname, WGC3Dint param) {
// TODO(kbr): figure out whether the setting of TEXTURE_WRAP_R in
// GraphicsContext3D.cpp is strictly necessary to avoid seams at the
// edge of cube maps, and, if it is, push it into the GLES2 service
// side code.
if (pname == kTextureWrapR) {
return;
}
gl_->TexParameteri(target, pname, param);
}
DELEGATE_TO_GL_9(texSubImage2D, TexSubImage2D,
WGC3Denum, WGC3Dint, WGC3Dint, WGC3Dint, WGC3Dsizei,
WGC3Dsizei, WGC3Denum, WGC3Denum, const void*)
DELEGATE_TO_GL_2(uniform1f, Uniform1f, WGC3Dint, WGC3Dfloat)
DELEGATE_TO_GL_3(uniform1fv, Uniform1fv, WGC3Dint, WGC3Dsizei,
const WGC3Dfloat*)
DELEGATE_TO_GL_2(uniform1i, Uniform1i, WGC3Dint, WGC3Dint)
DELEGATE_TO_GL_3(uniform1iv, Uniform1iv, WGC3Dint, WGC3Dsizei, const WGC3Dint*)
DELEGATE_TO_GL_3(uniform2f, Uniform2f, WGC3Dint, WGC3Dfloat, WGC3Dfloat)
DELEGATE_TO_GL_3(uniform2fv, Uniform2fv, WGC3Dint, WGC3Dsizei,
const WGC3Dfloat*)
DELEGATE_TO_GL_3(uniform2i, Uniform2i, WGC3Dint, WGC3Dint, WGC3Dint)
DELEGATE_TO_GL_3(uniform2iv, Uniform2iv, WGC3Dint, WGC3Dsizei, const WGC3Dint*)
DELEGATE_TO_GL_4(uniform3f, Uniform3f, WGC3Dint,
WGC3Dfloat, WGC3Dfloat, WGC3Dfloat)
DELEGATE_TO_GL_3(uniform3fv, Uniform3fv, WGC3Dint, WGC3Dsizei,
const WGC3Dfloat*)
DELEGATE_TO_GL_4(uniform3i, Uniform3i, WGC3Dint, WGC3Dint, WGC3Dint, WGC3Dint)
DELEGATE_TO_GL_3(uniform3iv, Uniform3iv, WGC3Dint, WGC3Dsizei, const WGC3Dint*)
DELEGATE_TO_GL_5(uniform4f, Uniform4f, WGC3Dint,
WGC3Dfloat, WGC3Dfloat, WGC3Dfloat, WGC3Dfloat)
DELEGATE_TO_GL_3(uniform4fv, Uniform4fv, WGC3Dint, WGC3Dsizei,
const WGC3Dfloat*)
DELEGATE_TO_GL_5(uniform4i, Uniform4i, WGC3Dint,
WGC3Dint, WGC3Dint, WGC3Dint, WGC3Dint)
DELEGATE_TO_GL_3(uniform4iv, Uniform4iv, WGC3Dint, WGC3Dsizei, const WGC3Dint*)
DELEGATE_TO_GL_4(uniformMatrix2fv, UniformMatrix2fv,
WGC3Dint, WGC3Dsizei, WGC3Dboolean, const WGC3Dfloat*)
DELEGATE_TO_GL_4(uniformMatrix3fv, UniformMatrix3fv,
WGC3Dint, WGC3Dsizei, WGC3Dboolean, const WGC3Dfloat*)
DELEGATE_TO_GL_4(uniformMatrix4fv, UniformMatrix4fv,
WGC3Dint, WGC3Dsizei, WGC3Dboolean, const WGC3Dfloat*)
DELEGATE_TO_GL_1(useProgram, UseProgram, WebGLId)
DELEGATE_TO_GL_1(validateProgram, ValidateProgram, WebGLId)
DELEGATE_TO_GL_2(vertexAttrib1f, VertexAttrib1f, WGC3Duint, WGC3Dfloat)
DELEGATE_TO_GL_2(vertexAttrib1fv, VertexAttrib1fv, WGC3Duint,
const WGC3Dfloat*)
DELEGATE_TO_GL_3(vertexAttrib2f, VertexAttrib2f, WGC3Duint,
WGC3Dfloat, WGC3Dfloat)
DELEGATE_TO_GL_2(vertexAttrib2fv, VertexAttrib2fv, WGC3Duint,
const WGC3Dfloat*)
DELEGATE_TO_GL_4(vertexAttrib3f, VertexAttrib3f, WGC3Duint,
WGC3Dfloat, WGC3Dfloat, WGC3Dfloat)
DELEGATE_TO_GL_2(vertexAttrib3fv, VertexAttrib3fv, WGC3Duint,
const WGC3Dfloat*)
DELEGATE_TO_GL_5(vertexAttrib4f, VertexAttrib4f, WGC3Duint,
WGC3Dfloat, WGC3Dfloat, WGC3Dfloat, WGC3Dfloat)
DELEGATE_TO_GL_2(vertexAttrib4fv, VertexAttrib4fv, WGC3Duint,
const WGC3Dfloat*)
void WebGraphicsContext3DCommandBufferImpl::vertexAttribPointer(
WGC3Duint index, WGC3Dint size, WGC3Denum type, WGC3Dboolean normalized,
WGC3Dsizei stride, WGC3Dintptr offset) {
gl_->VertexAttribPointer(
index, size, type, normalized, stride,
reinterpret_cast<void*>(static_cast<intptr_t>(offset)));
}
DELEGATE_TO_GL_4(viewport, Viewport,
WGC3Dint, WGC3Dint, WGC3Dsizei, WGC3Dsizei)
WebGLId WebGraphicsContext3DCommandBufferImpl::createBuffer() {
GLuint o;
gl_->GenBuffers(1, &o);
return o;
}
WebGLId WebGraphicsContext3DCommandBufferImpl::createFramebuffer() {
GLuint o = 0;
gl_->GenFramebuffers(1, &o);
return o;
}
DELEGATE_TO_GL_R(createProgram, CreateProgram, WebGLId)
WebGLId WebGraphicsContext3DCommandBufferImpl::createRenderbuffer() {
GLuint o;
gl_->GenRenderbuffers(1, &o);
return o;
}
DELEGATE_TO_GL_1R(createShader, CreateShader, WGC3Denum, WebGLId)
WebGLId WebGraphicsContext3DCommandBufferImpl::createTexture() {
GLuint o;
gl_->GenTextures(1, &o);
return o;
}
void WebGraphicsContext3DCommandBufferImpl::deleteBuffer(WebGLId buffer) {
gl_->DeleteBuffers(1, &buffer);
}
void WebGraphicsContext3DCommandBufferImpl::deleteFramebuffer(
WebGLId framebuffer) {
gl_->DeleteFramebuffers(1, &framebuffer);
}
DELEGATE_TO_GL_1(deleteProgram, DeleteProgram, WebGLId)
void WebGraphicsContext3DCommandBufferImpl::deleteRenderbuffer(
WebGLId renderbuffer) {
gl_->DeleteRenderbuffers(1, &renderbuffer);
}
DELEGATE_TO_GL_1(deleteShader, DeleteShader, WebGLId)
void WebGraphicsContext3DCommandBufferImpl::deleteTexture(WebGLId texture) {
gl_->DeleteTextures(1, &texture);
}
bool WebGraphicsContext3DCommandBufferImpl::ShouldUseSwapClient() {
return factory_ && factory_->IsMainThread() && swap_client_.get();
}
void WebGraphicsContext3DCommandBufferImpl::OnSwapBuffersComplete() {
typedef WebGraphicsContext3DSwapBuffersClient WGC3DSwapClient;
// This may be called after tear-down of the RenderView.
if (ShouldUseSwapClient()) {
base::MessageLoop::current()->PostTask(
FROM_HERE,
base::Bind(&WGC3DSwapClient::OnViewContextSwapBuffersComplete,
swap_client_));
}
if (swapbuffers_complete_callback_)
swapbuffers_complete_callback_->onSwapBuffersComplete();
}
WebGraphicsMemoryAllocation::PriorityCutoff
WebGraphicsContext3DCommandBufferImpl::WebkitPriorityCutoff(
GpuMemoryAllocationForRenderer::PriorityCutoff priorityCutoff) {
switch (priorityCutoff) {
case GpuMemoryAllocationForRenderer::kPriorityCutoffAllowNothing:
return WebGraphicsMemoryAllocation::PriorityCutoffAllowNothing;
case GpuMemoryAllocationForRenderer::kPriorityCutoffAllowOnlyRequired:
return WebGraphicsMemoryAllocation::PriorityCutoffAllowVisibleOnly;
case GpuMemoryAllocationForRenderer::kPriorityCutoffAllowNiceToHave:
return WebGraphicsMemoryAllocation::PriorityCutoffAllowVisibleAndNearby;
case GpuMemoryAllocationForRenderer::kPriorityCutoffAllowEverything:
return WebGraphicsMemoryAllocation::PriorityCutoffAllowEverything;
}
NOTREACHED();
return WebGraphicsMemoryAllocation::PriorityCutoffAllowEverything;
}
void WebGraphicsContext3DCommandBufferImpl::OnMemoryAllocationChanged(
WebGraphicsMemoryAllocationChangedCallbackCHROMIUM* callback,
const GpuMemoryAllocationForRenderer& allocation) {
// Convert the gpu structure to the WebKit structure.
WebGraphicsMemoryAllocation web_allocation;
web_allocation.bytesLimitWhenVisible =
ClampUint64ToSizeT(allocation.bytes_limit_when_visible);
web_allocation.priorityCutoffWhenVisible =
WebkitPriorityCutoff(allocation.priority_cutoff_when_visible);
web_allocation.bytesLimitWhenNotVisible =
ClampUint64ToSizeT(allocation.bytes_limit_when_not_visible);
web_allocation.priorityCutoffWhenNotVisible =
WebkitPriorityCutoff(allocation.priority_cutoff_when_not_visible);
web_allocation.haveBackbufferWhenNotVisible =
allocation.have_backbuffer_when_not_visible;
// Populate deprecated WebKit fields. These may be removed when references to
// them in WebKit are removed.
web_allocation.gpuResourceSizeInBytes =
ClampUint64ToSizeT(allocation.bytes_limit_when_visible);
web_allocation.suggestHaveBackbuffer =
allocation.have_backbuffer_when_not_visible;
if (callback)
callback->onMemoryAllocationChanged(web_allocation);
// We may have allocated transfer buffers in order to free GL resources in a
// backgrounded tab. Re-free the transfer buffers.
if (!visible_)
real_gl_->FreeEverything();
}
void WebGraphicsContext3DCommandBufferImpl::setErrorMessageCallback(
WebGraphicsContext3D::WebGraphicsErrorMessageCallback* cb) {
error_message_callback_ = cb;
}
void WebGraphicsContext3DCommandBufferImpl::setContextLostCallback(
WebGraphicsContext3D::WebGraphicsContextLostCallback* cb) {
context_lost_callback_ = cb;
}
WGC3Denum WebGraphicsContext3DCommandBufferImpl::getGraphicsResetStatusARB() {
if (IsCommandBufferContextLost() &&
context_lost_reason_ == GL_NO_ERROR) {
return GL_UNKNOWN_CONTEXT_RESET_ARB;
}
return context_lost_reason_;
}
bool WebGraphicsContext3DCommandBufferImpl::IsCommandBufferContextLost() {
// If the channel shut down unexpectedly, let that supersede the
// command buffer's state.
if (host_.get() && host_->IsLost())
return true;
gpu::CommandBuffer::State state = command_buffer_->GetLastState();
return state.error == gpu::error::kLostContext;
}
// static
WebGraphicsContext3DCommandBufferImpl*
WebGraphicsContext3DCommandBufferImpl::CreateOffscreenContext(
GpuChannelHostFactory* factory,
const WebGraphicsContext3D::Attributes& attributes,
const GURL& active_url) {
if (!factory)
return NULL;
base::WeakPtr<WebGraphicsContext3DSwapBuffersClient> null_client;
scoped_ptr<WebGraphicsContext3DCommandBufferImpl> context(
new WebGraphicsContext3DCommandBufferImpl(
0, active_url, factory, null_client));
CauseForGpuLaunch cause =
CAUSE_FOR_GPU_LAUNCH_WEBGRAPHICSCONTEXT3DCOMMANDBUFFERIMPL_INITIALIZE;
if (context->InitializeWithDefaultBufferSizes(attributes, false, cause))
return context.release();
return NULL;
}
void WebGraphicsContext3DCommandBufferImpl::
setSwapBuffersCompleteCallbackCHROMIUM(
WebGraphicsContext3D::WebGraphicsSwapBuffersCompleteCallbackCHROMIUM* cb) {
swapbuffers_complete_callback_ = cb;
}
DELEGATE_TO_GL_5(texImageIOSurface2DCHROMIUM, TexImageIOSurface2DCHROMIUM,
WGC3Denum, WGC3Dint, WGC3Dint, WGC3Duint, WGC3Duint)
DELEGATE_TO_GL_5(texStorage2DEXT, TexStorage2DEXT,
WGC3Denum, WGC3Dint, WGC3Duint, WGC3Dint, WGC3Dint)
WebGLId WebGraphicsContext3DCommandBufferImpl::createQueryEXT() {
GLuint o;
gl_->GenQueriesEXT(1, &o);
return o;
}
void WebGraphicsContext3DCommandBufferImpl::deleteQueryEXT(
WebGLId query) {
gl_->DeleteQueriesEXT(1, &query);
}
DELEGATE_TO_GL_1R(isQueryEXT, IsQueryEXT, WebGLId, WGC3Dboolean)
DELEGATE_TO_GL_2(beginQueryEXT, BeginQueryEXT, WGC3Denum, WebGLId)
DELEGATE_TO_GL_1(endQueryEXT, EndQueryEXT, WGC3Denum)
DELEGATE_TO_GL_3(getQueryivEXT, GetQueryivEXT, WGC3Denum, WGC3Denum, WGC3Dint*)
DELEGATE_TO_GL_3(getQueryObjectuivEXT, GetQueryObjectuivEXT,
WebGLId, WGC3Denum, WGC3Duint*)
DELEGATE_TO_GL_6(copyTextureCHROMIUM, CopyTextureCHROMIUM, WGC3Denum,
WebGLId, WebGLId, WGC3Dint, WGC3Denum, WGC3Denum);
DELEGATE_TO_GL_3(bindUniformLocationCHROMIUM, BindUniformLocationCHROMIUM,
WebGLId, WGC3Dint, const WGC3Dchar*)
DELEGATE_TO_GL(shallowFlushCHROMIUM, ShallowFlushCHROMIUM);
DELEGATE_TO_GL(shallowFinishCHROMIUM, ShallowFinishCHROMIUM);
DELEGATE_TO_GL_1(waitSyncPoint, WaitSyncPointCHROMIUM, GLuint)
static void SignalSyncPointCallback(
scoped_ptr<
WebKit::WebGraphicsContext3D::WebGraphicsSyncPointCallback> callback) {
callback->onSyncPointReached();
}
void WebGraphicsContext3DCommandBufferImpl::signalSyncPoint(
unsigned sync_point,
WebGraphicsSyncPointCallback* callback) {
// Take ownership of the callback.
scoped_ptr<WebGraphicsSyncPointCallback> own_callback(callback);
command_buffer_->SignalSyncPoint(
sync_point,
base::Bind(&SignalSyncPointCallback, base::Passed(&own_callback)));
}
void WebGraphicsContext3DCommandBufferImpl::signalQuery(
unsigned query,
WebGraphicsSyncPointCallback* callback) {
// Take ownership of the callback.
scoped_ptr<WebGraphicsSyncPointCallback> own_callback(callback);
// Flush any pending commands to make sure that the the query
// has actually been created/started before we try to attach
// a callback to it.
gl_->Flush();
command_buffer_->SignalQuery(
query,
base::Bind(&SignalSyncPointCallback, base::Passed(&own_callback)));
}
void WebGraphicsContext3DCommandBufferImpl::loseContextCHROMIUM(
WGC3Denum current, WGC3Denum other) {
gl_->LoseContextCHROMIUM(current, other);
gl_->Flush();
}
void WebGraphicsContext3DCommandBufferImpl::genMailboxCHROMIUM(
WGC3Dbyte* name) {
std::vector<gpu::Mailbox> names;
if (command_buffer_->GenerateMailboxNames(1, &names))
memcpy(name, names[0].name, GL_MAILBOX_SIZE_CHROMIUM);
else
synthesizeGLError(GL_OUT_OF_MEMORY);
}
DELEGATE_TO_GL_2(produceTextureCHROMIUM, ProduceTextureCHROMIUM,
WGC3Denum, const WGC3Dbyte*)
DELEGATE_TO_GL_2(consumeTextureCHROMIUM, ConsumeTextureCHROMIUM,
WGC3Denum, const WGC3Dbyte*)
void WebGraphicsContext3DCommandBufferImpl::insertEventMarkerEXT(
const WGC3Dchar* marker) {
gl_->InsertEventMarkerEXT(0, marker);
}
void WebGraphicsContext3DCommandBufferImpl::pushGroupMarkerEXT(
const WGC3Dchar* marker) {
gl_->PushGroupMarkerEXT(0, marker);
}
DELEGATE_TO_GL(popGroupMarkerEXT, PopGroupMarkerEXT);
WebGLId WebGraphicsContext3DCommandBufferImpl::createVertexArrayOES() {
GLuint array;
gl_->GenVertexArraysOES(1, &array);
return array;
}
void WebGraphicsContext3DCommandBufferImpl::deleteVertexArrayOES(
WebGLId array) {
gl_->DeleteVertexArraysOES(1, &array);
}
DELEGATE_TO_GL_1R(isVertexArrayOES, IsVertexArrayOES, WebGLId, WGC3Dboolean)
DELEGATE_TO_GL_1(bindVertexArrayOES, BindVertexArrayOES, WebGLId)
DELEGATE_TO_GL_2(bindTexImage2DCHROMIUM, BindTexImage2DCHROMIUM,
WGC3Denum, WGC3Dint)
DELEGATE_TO_GL_2(releaseTexImage2DCHROMIUM, ReleaseTexImage2DCHROMIUM,
WGC3Denum, WGC3Dint)
DELEGATE_TO_GL_2R(mapBufferCHROMIUM, MapBufferCHROMIUM, WGC3Denum, WGC3Denum,
void*)
DELEGATE_TO_GL_1R(unmapBufferCHROMIUM, UnmapBufferCHROMIUM, WGC3Denum,
WGC3Dboolean)
DELEGATE_TO_GL_9(asyncTexImage2DCHROMIUM, AsyncTexImage2DCHROMIUM, WGC3Denum,
WGC3Dint, WGC3Denum, WGC3Dsizei, WGC3Dsizei, WGC3Dint,
WGC3Denum, WGC3Denum, const void*)
DELEGATE_TO_GL_9(asyncTexSubImage2DCHROMIUM, AsyncTexSubImage2DCHROMIUM,
WGC3Denum, WGC3Dint, WGC3Dint, WGC3Dint, WGC3Dsizei,
WGC3Dsizei, WGC3Denum, WGC3Denum, const void*)
DELEGATE_TO_GL_1(waitAsyncTexImage2DCHROMIUM, WaitAsyncTexImage2DCHROMIUM,
WGC3Denum)
DELEGATE_TO_GL_2(drawBuffersEXT, DrawBuffersEXT, WGC3Dsizei, const WGC3Denum*)
DELEGATE_TO_GL_4(drawArraysInstancedANGLE, DrawArraysInstancedANGLE, WGC3Denum,
WGC3Dint, WGC3Dsizei, WGC3Dsizei)
void WebGraphicsContext3DCommandBufferImpl::drawElementsInstancedANGLE(
WGC3Denum mode,
WGC3Dsizei count,
WGC3Denum type,
WGC3Dintptr offset,
WGC3Dsizei primcount) {
gl_->DrawElementsInstancedANGLE(
mode, count, type,
reinterpret_cast<void*>(static_cast<intptr_t>(offset)), primcount);
}
DELEGATE_TO_GL_2(vertexAttribDivisorANGLE, VertexAttribDivisorANGLE, WGC3Duint,
WGC3Duint)
GrGLInterface* WebGraphicsContext3DCommandBufferImpl::onCreateGrGLInterface() {
return webkit::gpu::CreateCommandBufferSkiaGLBinding();
}
namespace {
WGC3Denum convertReason(gpu::error::ContextLostReason reason) {
switch (reason) {
case gpu::error::kGuilty:
return GL_GUILTY_CONTEXT_RESET_ARB;
case gpu::error::kInnocent:
return GL_INNOCENT_CONTEXT_RESET_ARB;
case gpu::error::kUnknown:
return GL_UNKNOWN_CONTEXT_RESET_ARB;
}
NOTREACHED();
return GL_UNKNOWN_CONTEXT_RESET_ARB;
}
} // anonymous namespace
void WebGraphicsContext3DCommandBufferImpl::OnContextLost() {
context_lost_reason_ = convertReason(
command_buffer_->GetLastState().context_lost_reason);
if (context_lost_callback_) {
context_lost_callback_->onContextLost();
}
if (attributes_.shareResources)
ClearSharedContextsIfInShareSet(this);
if (ShouldUseSwapClient())
swap_client_->OnViewContextSwapBuffersAborted();
}
void WebGraphicsContext3DCommandBufferImpl::OnErrorMessage(
const std::string& message, int id) {
if (error_message_callback_) {
WebKit::WebString str = WebKit::WebString::fromUTF8(message.c_str());
error_message_callback_->onErrorMessage(str, id);
}
}
} // namespace content