[SCM] WebKit Debian packaging branch, debian/experimental, updated. upstream/1.3.3-9427-gc2be6fc
cmarrin at apple.com
cmarrin at apple.com
Wed Dec 22 13:18:28 UTC 2010
The following commit has been merged in the debian/experimental branch:
commit 49b8ffc5169309666b7d784ee485672c449ec810
Author: cmarrin at apple.com <cmarrin at apple.com@268f45cc-cd09-0410-ab3c-d52691b4dbfc>
Date: Fri Sep 10 21:02:52 2010 +0000
2010-09-10 Chris Marrin <cmarrin at apple.com>
Unreviewed.
Adding file that should have been in http://trac.webkit.org/changeset/67226 but
I forgot to svn add.
* platform/graphics/opengl: Added.
* platform/graphics/opengl/GraphicsContext3DOpenGL.cpp: Copied from platform/graphics/mac/GraphicsContext3DMac.mm.
git-svn-id: http://svn.webkit.org/repository/webkit/trunk@67229 268f45cc-cd09-0410-ab3c-d52691b4dbfc
diff --git a/WebCore/ChangeLog b/WebCore/ChangeLog
index ee2bf17..d36b786 100644
--- a/WebCore/ChangeLog
+++ b/WebCore/ChangeLog
@@ -1,3 +1,13 @@
+2010-09-10 Chris Marrin <cmarrin at apple.com>
+
+ Unreviewed.
+
+ Adding file that should have been in http://trac.webkit.org/changeset/67226 but
+ I forgot to svn add.
+
+ * platform/graphics/opengl: Added.
+ * platform/graphics/opengl/GraphicsContext3DOpenGL.cpp: Copied from platform/graphics/mac/GraphicsContext3DMac.mm.
+
2010-09-10 Paul Sawaya <psawaya at apple.com>
Reviewed by Chris Marrin.
diff --git a/WebCore/platform/graphics/opengl/GraphicsContext3DOpenGL.cpp b/WebCore/platform/graphics/opengl/GraphicsContext3DOpenGL.cpp
new file mode 100644
index 0000000..53d9b86
--- /dev/null
+++ b/WebCore/platform/graphics/opengl/GraphicsContext3DOpenGL.cpp
@@ -0,0 +1,1454 @@
+/*
+ * Copyright (C) 2010 Apple Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "config.h"
+
+#if ENABLE(3D_CANVAS)
+
+#include "GraphicsContext3D.h"
+
+#include "ArrayBuffer.h"
+#include "ArrayBufferView.h"
+#include "WebGLObject.h"
+#include "CanvasRenderingContext.h"
+#include "Float32Array.h"
+#include "GraphicsContext.h"
+#include "HTMLCanvasElement.h"
+#include "ImageBuffer.h"
+#include "Int32Array.h"
+#include "NotImplemented.h"
+#include "Uint8Array.h"
+
+#if PLATFORM(MAC)
+#include <OpenGL/gl.h>
+#endif
+
+#include <wtf/UnusedParam.h>
+#include <wtf/text/CString.h>
+
+namespace WebCore {
+
+void GraphicsContext3D::validateAttributes()
+{
+ const char* extensions = reinterpret_cast<const char*>(::glGetString(GL_EXTENSIONS));
+ if (m_attrs.stencil) {
+ if (std::strstr(extensions, "GL_EXT_packed_depth_stencil")) {
+ if (!m_attrs.depth)
+ m_attrs.depth = true;
+ } else
+ m_attrs.stencil = false;
+ }
+ if (m_attrs.antialias) {
+ bool isValidVendor = true;
+ // Currently in Mac we only turn on antialias if vendor is NVIDIA.
+ const char* vendor = reinterpret_cast<const char*>(::glGetString(GL_VENDOR));
+ if (!std::strstr(vendor, "NVIDIA"))
+ isValidVendor = false;
+ if (!isValidVendor || !std::strstr(extensions, "GL_EXT_framebuffer_multisample"))
+ m_attrs.antialias = false;
+ }
+ // FIXME: instead of enforcing premultipliedAlpha = true, implement the
+ // correct behavior when premultipliedAlpha = false is requested.
+ m_attrs.premultipliedAlpha = true;
+}
+
+void GraphicsContext3D::paintRenderingResultsToCanvas(CanvasRenderingContext* context)
+{
+ HTMLCanvasElement* canvas = context->canvas();
+ ImageBuffer* imageBuffer = canvas->buffer();
+
+ int rowBytes = m_currentWidth * 4;
+ int totalBytes = rowBytes * m_currentHeight;
+
+ OwnArrayPtr<unsigned char> pixels(new unsigned char[totalBytes]);
+ if (!pixels)
+ return;
+
+ makeContextCurrent();
+
+ bool mustRestoreFBO = false;
+ if (m_attrs.antialias) {
+ ::glBindFramebufferEXT(GL_READ_FRAMEBUFFER_EXT, m_multisampleFBO);
+ ::glBindFramebufferEXT(GL_DRAW_FRAMEBUFFER_EXT, m_fbo);
+ ::glBlitFramebufferEXT(0, 0, m_currentWidth, m_currentHeight, 0, 0, m_currentWidth, m_currentHeight, GL_COLOR_BUFFER_BIT, GL_LINEAR);
+ ::glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, m_fbo);
+ mustRestoreFBO = true;
+ } else {
+ if (m_boundFBO != m_fbo) {
+ mustRestoreFBO = true;
+ ::glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, m_fbo);
+ }
+ }
+
+ GLint packAlignment = 4;
+ bool mustRestorePackAlignment = false;
+ ::glGetIntegerv(GL_PACK_ALIGNMENT, &packAlignment);
+ if (packAlignment > 4) {
+ ::glPixelStorei(GL_PACK_ALIGNMENT, 4);
+ mustRestorePackAlignment = true;
+ }
+
+ ::glReadPixels(0, 0, m_currentWidth, m_currentHeight, GL_BGRA, GL_UNSIGNED_INT_8_8_8_8_REV, pixels.get());
+
+ if (mustRestorePackAlignment)
+ ::glPixelStorei(GL_PACK_ALIGNMENT, packAlignment);
+
+ if (mustRestoreFBO)
+ ::glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, m_boundFBO);
+
+ paintToCanvas(pixels.get(), m_currentWidth, m_currentHeight,
+ canvas->width(), canvas->height(), imageBuffer->context()->platformContext());
+}
+
+void GraphicsContext3D::reshape(int width, int height)
+{
+ if (width == m_currentWidth && height == m_currentHeight || !m_contextObj)
+ return;
+
+ m_currentWidth = width;
+ m_currentHeight = height;
+
+ makeContextCurrent();
+
+ GLuint internalColorFormat, colorFormat, internalDepthStencilFormat = 0;
+ if (m_attrs.alpha) {
+ internalColorFormat = GL_RGBA8;
+ colorFormat = GL_RGBA;
+ } else {
+ internalColorFormat = GL_RGB8;
+ colorFormat = GL_RGB;
+ }
+ if (m_attrs.stencil || m_attrs.depth) {
+ // We don't allow the logic where stencil is required and depth is not.
+ // See GraphicsContext3D constructor.
+ if (m_attrs.stencil && m_attrs.depth)
+ internalDepthStencilFormat = GL_DEPTH24_STENCIL8_EXT;
+ else
+ internalDepthStencilFormat = GL_DEPTH_COMPONENT;
+ }
+
+ bool mustRestoreFBO = false;
+
+ // resize multisample FBO
+ if (m_attrs.antialias) {
+ GLint maxSampleCount;
+ ::glGetIntegerv(GL_MAX_SAMPLES_EXT, &maxSampleCount);
+ GLint sampleCount = std::min(8, maxSampleCount);
+ if (sampleCount > maxSampleCount)
+ sampleCount = maxSampleCount;
+ if (m_boundFBO != m_multisampleFBO) {
+ ::glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, m_multisampleFBO);
+ mustRestoreFBO = true;
+ }
+ ::glBindRenderbufferEXT(GL_RENDERBUFFER_EXT, m_multisampleColorBuffer);
+ ::glRenderbufferStorageMultisampleEXT(GL_RENDERBUFFER_EXT, sampleCount, internalColorFormat, width, height);
+ ::glFramebufferRenderbufferEXT(GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0_EXT, GL_RENDERBUFFER_EXT, m_multisampleColorBuffer);
+ if (m_attrs.stencil || m_attrs.depth) {
+ ::glBindRenderbufferEXT(GL_RENDERBUFFER_EXT, m_multisampleDepthStencilBuffer);
+ ::glRenderbufferStorageMultisampleEXT(GL_RENDERBUFFER_EXT, sampleCount, internalDepthStencilFormat, width, height);
+ if (m_attrs.stencil)
+ ::glFramebufferRenderbufferEXT(GL_FRAMEBUFFER_EXT, GL_STENCIL_ATTACHMENT_EXT, GL_RENDERBUFFER_EXT, m_multisampleDepthStencilBuffer);
+ if (m_attrs.depth)
+ ::glFramebufferRenderbufferEXT(GL_FRAMEBUFFER_EXT, GL_DEPTH_ATTACHMENT_EXT, GL_RENDERBUFFER_EXT, m_multisampleDepthStencilBuffer);
+ }
+ ::glBindRenderbufferEXT(GL_RENDERBUFFER_EXT, 0);
+ if (glCheckFramebufferStatusEXT(GL_FRAMEBUFFER_EXT) != GL_FRAMEBUFFER_COMPLETE_EXT) {
+ // FIXME: cleanup.
+ notImplemented();
+ }
+ }
+
+ // resize regular FBO
+ if (m_boundFBO != m_fbo) {
+ mustRestoreFBO = true;
+ ::glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, m_fbo);
+ }
+ ::glBindTexture(GL_TEXTURE_2D, m_texture);
+ ::glTexImage2D(GL_TEXTURE_2D, 0, internalColorFormat, width, height, 0, colorFormat, GL_UNSIGNED_BYTE, 0);
+ ::glFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0_EXT, GL_TEXTURE_2D, m_texture, 0);
+ ::glBindTexture(GL_TEXTURE_2D, 0);
+ if (!m_attrs.antialias && (m_attrs.stencil || m_attrs.depth)) {
+ ::glBindRenderbufferEXT(GL_RENDERBUFFER_EXT, m_depthStencilBuffer);
+ ::glRenderbufferStorageEXT(GL_RENDERBUFFER_EXT, internalDepthStencilFormat, width, height);
+ if (m_attrs.stencil)
+ ::glFramebufferRenderbufferEXT(GL_FRAMEBUFFER_EXT, GL_STENCIL_ATTACHMENT_EXT, GL_RENDERBUFFER_EXT, m_depthStencilBuffer);
+ if (m_attrs.depth)
+ ::glFramebufferRenderbufferEXT(GL_FRAMEBUFFER_EXT, GL_DEPTH_ATTACHMENT_EXT, GL_RENDERBUFFER_EXT, m_depthStencilBuffer);
+ ::glBindRenderbufferEXT(GL_RENDERBUFFER_EXT, 0);
+ }
+ if (glCheckFramebufferStatusEXT(GL_FRAMEBUFFER_EXT) != GL_FRAMEBUFFER_COMPLETE_EXT) {
+ // FIXME: cleanup
+ notImplemented();
+ }
+
+ if (m_attrs.antialias) {
+ ::glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, m_multisampleFBO);
+ if (m_boundFBO == m_multisampleFBO)
+ mustRestoreFBO = false;
+ }
+
+ // Initialize renderbuffers to 0.
+ GLboolean colorMask[] = {GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE}, depthMask = GL_TRUE, stencilMask = GL_TRUE;
+ GLboolean isScissorEnabled = GL_FALSE;
+ GLboolean isDitherEnabled = GL_FALSE;
+ GLbitfield clearMask = GL_COLOR_BUFFER_BIT;
+ ::glGetBooleanv(GL_COLOR_WRITEMASK, colorMask);
+ ::glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
+ if (m_attrs.depth) {
+ ::glGetBooleanv(GL_DEPTH_WRITEMASK, &depthMask);
+ ::glDepthMask(GL_TRUE);
+ clearMask |= GL_DEPTH_BUFFER_BIT;
+ }
+ if (m_attrs.stencil) {
+ ::glGetBooleanv(GL_STENCIL_WRITEMASK, &stencilMask);
+ ::glStencilMask(GL_TRUE);
+ clearMask |= GL_STENCIL_BUFFER_BIT;
+ }
+ isScissorEnabled = ::glIsEnabled(GL_SCISSOR_TEST);
+ ::glDisable(GL_SCISSOR_TEST);
+ isDitherEnabled = ::glIsEnabled(GL_DITHER);
+ ::glDisable(GL_DITHER);
+
+ ::glClear(clearMask);
+
+ ::glColorMask(colorMask[0], colorMask[1], colorMask[2], colorMask[3]);
+ if (m_attrs.depth)
+ ::glDepthMask(depthMask);
+ if (m_attrs.stencil)
+ ::glStencilMask(stencilMask);
+ if (isScissorEnabled)
+ ::glEnable(GL_SCISSOR_TEST);
+ else
+ ::glDisable(GL_SCISSOR_TEST);
+ if (isDitherEnabled)
+ ::glEnable(GL_DITHER);
+ else
+ ::glDisable(GL_DITHER);
+
+ if (mustRestoreFBO)
+ ::glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, m_boundFBO);
+
+ ::glFlush();
+}
+
+void GraphicsContext3D::prepareTexture()
+{
+ makeContextCurrent();
+ if (m_attrs.antialias) {
+ ::glBindFramebufferEXT(GL_READ_FRAMEBUFFER_EXT, m_multisampleFBO);
+ ::glBindFramebufferEXT(GL_DRAW_FRAMEBUFFER_EXT, m_fbo);
+ ::glBlitFramebufferEXT(0, 0, m_currentWidth, m_currentHeight, 0, 0, m_currentWidth, m_currentHeight, GL_COLOR_BUFFER_BIT, GL_LINEAR);
+ ::glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, m_boundFBO);
+ }
+ ::glFinish();
+}
+
+void GraphicsContext3D::activeTexture(unsigned long texture)
+{
+ makeContextCurrent();
+ ::glActiveTexture(texture);
+}
+
+void GraphicsContext3D::attachShader(Platform3DObject program, Platform3DObject shader)
+{
+ ASSERT(program);
+ ASSERT(shader);
+ makeContextCurrent();
+ ::glAttachShader((GLuint) program, (GLuint) shader);
+}
+
+void GraphicsContext3D::bindAttribLocation(Platform3DObject program, unsigned long index, const String& name)
+{
+ ASSERT(program);
+ makeContextCurrent();
+ ::glBindAttribLocation((GLuint) program, index, name.utf8().data());
+}
+
+void GraphicsContext3D::bindBuffer(unsigned long target, Platform3DObject buffer)
+{
+ makeContextCurrent();
+ ::glBindBuffer(target, (GLuint) buffer);
+}
+
+
+void GraphicsContext3D::bindFramebuffer(unsigned long target, Platform3DObject buffer)
+{
+ makeContextCurrent();
+ GLuint fbo;
+ if (buffer)
+ fbo = (GLuint)buffer;
+ else
+ fbo = (m_attrs.antialias ? m_multisampleFBO : m_fbo);
+ if (fbo != m_boundFBO) {
+ ::glBindFramebufferEXT(target, fbo);
+ m_boundFBO = fbo;
+ }
+}
+
+void GraphicsContext3D::bindRenderbuffer(unsigned long target, Platform3DObject renderbuffer)
+{
+ makeContextCurrent();
+ ::glBindRenderbufferEXT(target, (GLuint) renderbuffer);
+}
+
+
+void GraphicsContext3D::bindTexture(unsigned long target, Platform3DObject texture)
+{
+ makeContextCurrent();
+ ::glBindTexture(target, (GLuint) texture);
+}
+
+void GraphicsContext3D::blendColor(double red, double green, double blue, double alpha)
+{
+ makeContextCurrent();
+ ::glBlendColor(static_cast<float>(red), static_cast<float>(green), static_cast<float>(blue), static_cast<float>(alpha));
+}
+
+void GraphicsContext3D::blendEquation( unsigned long mode )
+{
+ makeContextCurrent();
+ ::glBlendEquation(mode);
+}
+
+void GraphicsContext3D::blendEquationSeparate(unsigned long modeRGB, unsigned long modeAlpha)
+{
+ makeContextCurrent();
+ ::glBlendEquationSeparate(modeRGB, modeAlpha);
+}
+
+
+void GraphicsContext3D::blendFunc(unsigned long sfactor, unsigned long dfactor)
+{
+ makeContextCurrent();
+ ::glBlendFunc(sfactor, dfactor);
+}
+
+void GraphicsContext3D::blendFuncSeparate(unsigned long srcRGB, unsigned long dstRGB, unsigned long srcAlpha, unsigned long dstAlpha)
+{
+ makeContextCurrent();
+ ::glBlendFuncSeparate(srcRGB, dstRGB, srcAlpha, dstAlpha);
+}
+
+void GraphicsContext3D::bufferData(unsigned long target, int size, unsigned long usage)
+{
+ makeContextCurrent();
+ ::glBufferData(target, size, 0, usage);
+}
+
+void GraphicsContext3D::bufferData(unsigned long target, int size, const void* data, unsigned long usage)
+{
+ makeContextCurrent();
+ ::glBufferData(target, size, data, usage);
+}
+
+void GraphicsContext3D::bufferSubData(unsigned long target, long offset, int size, const void* data)
+{
+ makeContextCurrent();
+ ::glBufferSubData(target, offset, size, data);
+}
+
+unsigned long GraphicsContext3D::checkFramebufferStatus(unsigned long target)
+{
+ makeContextCurrent();
+ return ::glCheckFramebufferStatusEXT(target);
+}
+
+void GraphicsContext3D::clearColor(double r, double g, double b, double a)
+{
+ makeContextCurrent();
+ ::glClearColor(static_cast<float>(r), static_cast<float>(g), static_cast<float>(b), static_cast<float>(a));
+}
+
+void GraphicsContext3D::clear(unsigned long mask)
+{
+ makeContextCurrent();
+ ::glClear(mask);
+}
+
+void GraphicsContext3D::clearDepth(double depth)
+{
+ makeContextCurrent();
+ ::glClearDepth(depth);
+}
+
+void GraphicsContext3D::clearStencil(long s)
+{
+ makeContextCurrent();
+ ::glClearStencil(s);
+}
+
+void GraphicsContext3D::colorMask(bool red, bool green, bool blue, bool alpha)
+{
+ makeContextCurrent();
+ ::glColorMask(red, green, blue, alpha);
+}
+
+void GraphicsContext3D::compileShader(Platform3DObject shader)
+{
+ ASSERT(shader);
+ makeContextCurrent();
+
+ int GLshaderType;
+ ANGLEShaderType shaderType;
+
+ glGetShaderiv(shader, SHADER_TYPE, &GLshaderType);
+
+ if (GLshaderType == VERTEX_SHADER)
+ shaderType = SHADER_TYPE_VERTEX;
+ else if (GLshaderType == FRAGMENT_SHADER)
+ shaderType = SHADER_TYPE_FRAGMENT;
+ else
+ return; // Invalid shader type.
+
+ HashMap<Platform3DObject, ShaderSourceEntry>::iterator result = m_shaderSourceMap.find(shader);
+
+ if (result == m_shaderSourceMap.end())
+ return;
+
+ ShaderSourceEntry& entry = result->second;
+
+ String translatedShaderSource;
+ String shaderInfoLog;
+
+ bool isValid = m_compiler.validateShaderSource(entry.source.utf8().data(), shaderType, translatedShaderSource, shaderInfoLog);
+
+ entry.log = shaderInfoLog;
+ entry.isValid = isValid;
+
+ if (!isValid)
+ return; // Shader didn't validate, don't move forward with compiling translated source
+
+ int translatedShaderLength = translatedShaderSource.length();
+
+ const CString& translatedShaderCString = translatedShaderSource.utf8();
+ const char* translatedShaderPtr = translatedShaderCString.data();
+
+ ::glShaderSource((GLuint) shader, 1, &translatedShaderPtr, &translatedShaderLength);
+
+ ::glCompileShader((GLuint) shader);
+
+ int GLCompileSuccess;
+
+ ::glGetShaderiv((GLuint) shader, COMPILE_STATUS, &GLCompileSuccess);
+
+ // ASSERT that ANGLE generated GLSL will be accepted by OpenGL
+ ASSERT(GLCompileSuccess == GL_TRUE);
+}
+
+void GraphicsContext3D::copyTexImage2D(unsigned long target, long level, unsigned long internalformat, long x, long y, unsigned long width, unsigned long height, long border)
+{
+ makeContextCurrent();
+ if (m_attrs.antialias && m_boundFBO == m_multisampleFBO) {
+ ::glBindFramebufferEXT(GL_READ_FRAMEBUFFER_EXT, m_multisampleFBO);
+ ::glBindFramebufferEXT(GL_DRAW_FRAMEBUFFER_EXT, m_fbo);
+ ::glBlitFramebufferEXT(x, y, x + width, y + height, x, y, x + width, y + height, GL_COLOR_BUFFER_BIT, GL_LINEAR);
+ ::glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, m_fbo);
+ }
+ ::glCopyTexImage2D(target, level, internalformat, x, y, width, height, border);
+ if (m_attrs.antialias && m_boundFBO == m_multisampleFBO)
+ ::glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, m_multisampleFBO);
+}
+
+void GraphicsContext3D::copyTexSubImage2D(unsigned long target, long level, long xoffset, long yoffset, long x, long y, unsigned long width, unsigned long height)
+{
+ makeContextCurrent();
+ if (m_attrs.antialias && m_boundFBO == m_multisampleFBO) {
+ ::glBindFramebufferEXT(GL_READ_FRAMEBUFFER_EXT, m_multisampleFBO);
+ ::glBindFramebufferEXT(GL_DRAW_FRAMEBUFFER_EXT, m_fbo);
+ ::glBlitFramebufferEXT(x, y, x + width, y + height, x, y, x + width, y + height, GL_COLOR_BUFFER_BIT, GL_LINEAR);
+ ::glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, m_fbo);
+ }
+ ::glCopyTexSubImage2D(target, level, xoffset, yoffset, x, y, width, height);
+ if (m_attrs.antialias && m_boundFBO == m_multisampleFBO)
+ ::glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, m_multisampleFBO);
+}
+
+void GraphicsContext3D::cullFace(unsigned long mode)
+{
+ makeContextCurrent();
+ ::glCullFace(mode);
+}
+
+void GraphicsContext3D::depthFunc(unsigned long func)
+{
+ makeContextCurrent();
+ ::glDepthFunc(func);
+}
+
+void GraphicsContext3D::depthMask(bool flag)
+{
+ makeContextCurrent();
+ ::glDepthMask(flag);
+}
+
+void GraphicsContext3D::depthRange(double zNear, double zFar)
+{
+ makeContextCurrent();
+ ::glDepthRange(zNear, zFar);
+}
+
+void GraphicsContext3D::detachShader(Platform3DObject program, Platform3DObject shader)
+{
+ ASSERT(program);
+ ASSERT(shader);
+ makeContextCurrent();
+ ::glDetachShader((GLuint) program, (GLuint) shader);
+}
+
+void GraphicsContext3D::disable(unsigned long cap)
+{
+ makeContextCurrent();
+ ::glDisable(cap);
+}
+
+void GraphicsContext3D::disableVertexAttribArray(unsigned long index)
+{
+ makeContextCurrent();
+ ::glDisableVertexAttribArray(index);
+}
+
+void GraphicsContext3D::drawArrays(unsigned long mode, long first, long count)
+{
+ makeContextCurrent();
+ ::glDrawArrays(mode, first, count);
+}
+
+void GraphicsContext3D::drawElements(unsigned long mode, unsigned long count, unsigned long type, long offset)
+{
+ makeContextCurrent();
+ ::glDrawElements(mode, count, type, reinterpret_cast<void*>(static_cast<intptr_t>(offset)));
+}
+
+void GraphicsContext3D::enable(unsigned long cap)
+{
+ makeContextCurrent();
+ ::glEnable(cap);
+}
+
+void GraphicsContext3D::enableVertexAttribArray(unsigned long index)
+{
+ makeContextCurrent();
+ ::glEnableVertexAttribArray(index);
+}
+
+void GraphicsContext3D::finish()
+{
+ makeContextCurrent();
+ ::glFinish();
+}
+
+void GraphicsContext3D::flush()
+{
+ makeContextCurrent();
+ ::glFlush();
+}
+
+void GraphicsContext3D::framebufferRenderbuffer(unsigned long target, unsigned long attachment, unsigned long renderbuffertarget, Platform3DObject buffer)
+{
+ makeContextCurrent();
+ GLuint renderbuffer = (GLuint) buffer;
+ if (attachment == DEPTH_STENCIL_ATTACHMENT) {
+ ::glFramebufferRenderbufferEXT(target, DEPTH_ATTACHMENT, renderbuffertarget, renderbuffer);
+ ::glFramebufferRenderbufferEXT(target, STENCIL_ATTACHMENT, renderbuffertarget, renderbuffer);
+ } else
+ ::glFramebufferRenderbufferEXT(target, attachment, renderbuffertarget, renderbuffer);
+}
+
+void GraphicsContext3D::framebufferTexture2D(unsigned long target, unsigned long attachment, unsigned long textarget, Platform3DObject texture, long level)
+{
+ makeContextCurrent();
+ ::glFramebufferTexture2DEXT(target, attachment, textarget, (GLuint) texture, level);
+}
+
+void GraphicsContext3D::frontFace(unsigned long mode)
+{
+ makeContextCurrent();
+ ::glFrontFace(mode);
+}
+
+void GraphicsContext3D::generateMipmap(unsigned long target)
+{
+ makeContextCurrent();
+ ::glGenerateMipmapEXT(target);
+}
+
+bool GraphicsContext3D::getActiveAttrib(Platform3DObject program, unsigned long index, ActiveInfo& info)
+{
+ if (!program) {
+ synthesizeGLError(INVALID_VALUE);
+ return false;
+ }
+ makeContextCurrent();
+ GLint maxAttributeSize = 0;
+ ::glGetProgramiv(static_cast<GLuint>(program), GL_ACTIVE_ATTRIBUTE_MAX_LENGTH, &maxAttributeSize);
+ GLchar name[maxAttributeSize]; // GL_ACTIVE_ATTRIBUTE_MAX_LENGTH includes null termination
+ GLsizei nameLength = 0;
+ GLint size = 0;
+ GLenum type = 0;
+ ::glGetActiveAttrib(static_cast<GLuint>(program), index, maxAttributeSize, &nameLength, &size, &type, name);
+ if (!nameLength)
+ return false;
+ info.name = String(name, nameLength);
+ info.type = type;
+ info.size = size;
+ return true;
+}
+
+bool GraphicsContext3D::getActiveUniform(Platform3DObject program, unsigned long index, ActiveInfo& info)
+{
+ if (!program) {
+ synthesizeGLError(INVALID_VALUE);
+ return false;
+ }
+ makeContextCurrent();
+ GLint maxUniformSize = 0;
+ ::glGetProgramiv(static_cast<GLuint>(program), GL_ACTIVE_UNIFORM_MAX_LENGTH, &maxUniformSize);
+ GLchar name[maxUniformSize]; // GL_ACTIVE_UNIFORM_MAX_LENGTH includes null termination
+ GLsizei nameLength = 0;
+ GLint size = 0;
+ GLenum type = 0;
+ ::glGetActiveUniform(static_cast<GLuint>(program), index, maxUniformSize, &nameLength, &size, &type, name);
+ if (!nameLength)
+ return false;
+ info.name = String(name, nameLength);
+ info.type = type;
+ info.size = size;
+ return true;
+}
+
+void GraphicsContext3D::getAttachedShaders(Platform3DObject program, int maxCount, int* count, unsigned int* shaders)
+{
+ if (!program) {
+ synthesizeGLError(INVALID_VALUE);
+ return;
+ }
+ makeContextCurrent();
+ ::glGetAttachedShaders(static_cast<GLuint>(program), maxCount, count, shaders);
+}
+
+int GraphicsContext3D::getAttribLocation(Platform3DObject program, const String& name)
+{
+ if (!program)
+ return -1;
+
+ makeContextCurrent();
+ return ::glGetAttribLocation((GLuint) program, name.utf8().data());
+}
+
+GraphicsContext3D::Attributes GraphicsContext3D::getContextAttributes()
+{
+ return m_attrs;
+}
+
+unsigned long GraphicsContext3D::getError()
+{
+ if (m_syntheticErrors.size() > 0) {
+ ListHashSet<unsigned long>::iterator iter = m_syntheticErrors.begin();
+ unsigned long err = *iter;
+ m_syntheticErrors.remove(iter);
+ return err;
+ }
+
+ makeContextCurrent();
+ return ::glGetError();
+}
+
+String GraphicsContext3D::getString(unsigned long name)
+{
+ makeContextCurrent();
+ return String((const char*) ::glGetString(name));
+}
+
+void GraphicsContext3D::hint(unsigned long target, unsigned long mode)
+{
+ makeContextCurrent();
+ ::glHint(target, mode);
+}
+
+bool GraphicsContext3D::isBuffer(Platform3DObject buffer)
+{
+ if (!buffer)
+ return false;
+
+ makeContextCurrent();
+ return ::glIsBuffer((GLuint) buffer);
+}
+
+bool GraphicsContext3D::isEnabled(unsigned long cap)
+{
+ makeContextCurrent();
+ return ::glIsEnabled(cap);
+}
+
+bool GraphicsContext3D::isFramebuffer(Platform3DObject framebuffer)
+{
+ if (!framebuffer)
+ return false;
+
+ makeContextCurrent();
+ return ::glIsFramebufferEXT((GLuint) framebuffer);
+}
+
+bool GraphicsContext3D::isProgram(Platform3DObject program)
+{
+ if (!program)
+ return false;
+
+ makeContextCurrent();
+ return ::glIsProgram((GLuint) program);
+}
+
+bool GraphicsContext3D::isRenderbuffer(Platform3DObject renderbuffer)
+{
+ if (!renderbuffer)
+ return false;
+
+ makeContextCurrent();
+ return ::glIsRenderbufferEXT((GLuint) renderbuffer);
+}
+
+bool GraphicsContext3D::isShader(Platform3DObject shader)
+{
+ if (!shader)
+ return false;
+
+ makeContextCurrent();
+ return ::glIsShader((GLuint) shader);
+}
+
+bool GraphicsContext3D::isTexture(Platform3DObject texture)
+{
+ if (!texture)
+ return false;
+
+ makeContextCurrent();
+ return ::glIsTexture((GLuint) texture);
+}
+
+void GraphicsContext3D::lineWidth(double width)
+{
+ makeContextCurrent();
+ ::glLineWidth(static_cast<float>(width));
+}
+
+void GraphicsContext3D::linkProgram(Platform3DObject program)
+{
+ ASSERT(program);
+ makeContextCurrent();
+ ::glLinkProgram((GLuint) program);
+}
+
+void GraphicsContext3D::pixelStorei(unsigned long pname, long param)
+{
+ makeContextCurrent();
+ ::glPixelStorei(pname, param);
+}
+
+void GraphicsContext3D::polygonOffset(double factor, double units)
+{
+ makeContextCurrent();
+ ::glPolygonOffset(static_cast<float>(factor), static_cast<float>(units));
+}
+
+void GraphicsContext3D::readPixels(long x, long y, unsigned long width, unsigned long height, unsigned long format, unsigned long type, void* data)
+{
+ // FIXME: remove the two glFlush calls when the driver bug is fixed, i.e.,
+ // all previous rendering calls should be done before reading pixels.
+ makeContextCurrent();
+ ::glFlush();
+ if (m_attrs.antialias && m_boundFBO == m_multisampleFBO) {
+ ::glBindFramebufferEXT(GL_READ_FRAMEBUFFER_EXT, m_multisampleFBO);
+ ::glBindFramebufferEXT(GL_DRAW_FRAMEBUFFER_EXT, m_fbo);
+ ::glBlitFramebufferEXT(x, y, x + width, y + height, x, y, x + width, y + height, GL_COLOR_BUFFER_BIT, GL_LINEAR);
+ ::glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, m_fbo);
+ ::glFlush();
+ }
+ ::glReadPixels(x, y, width, height, format, type, data);
+ if (m_attrs.antialias && m_boundFBO == m_multisampleFBO)
+ ::glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, m_multisampleFBO);
+}
+
+void GraphicsContext3D::releaseShaderCompiler()
+{
+ // FIXME: This is not implemented on desktop OpenGL. We need to have ifdefs for the different GL variants
+ makeContextCurrent();
+ //::glReleaseShaderCompiler();
+}
+
+void GraphicsContext3D::renderbufferStorage(unsigned long target, unsigned long internalformat, unsigned long width, unsigned long height)
+{
+ makeContextCurrent();
+ switch (internalformat) {
+ case DEPTH_STENCIL:
+ internalformat = GL_DEPTH24_STENCIL8_EXT;
+ break;
+ case DEPTH_COMPONENT16:
+ internalformat = GL_DEPTH_COMPONENT;
+ break;
+ case RGBA4:
+ case RGB5_A1:
+ internalformat = GL_RGBA;
+ break;
+ case RGB565:
+ internalformat = GL_RGB;
+ break;
+ }
+ ::glRenderbufferStorageEXT(target, internalformat, width, height);
+}
+
+void GraphicsContext3D::sampleCoverage(double value, bool invert)
+{
+ makeContextCurrent();
+ ::glSampleCoverage(static_cast<float>(value), invert);
+}
+
+void GraphicsContext3D::scissor(long x, long y, unsigned long width, unsigned long height)
+{
+ makeContextCurrent();
+ ::glScissor(x, y, width, height);
+}
+
+void GraphicsContext3D::shaderSource(Platform3DObject shader, const String& string)
+{
+ ASSERT(shader);
+
+ makeContextCurrent();
+
+ ShaderSourceEntry entry;
+
+ entry.source = string;
+
+ m_shaderSourceMap.set(shader, entry);
+}
+
+void GraphicsContext3D::stencilFunc(unsigned long func, long ref, unsigned long mask)
+{
+ makeContextCurrent();
+ ::glStencilFunc(func, ref, mask);
+}
+
+void GraphicsContext3D::stencilFuncSeparate(unsigned long face, unsigned long func, long ref, unsigned long mask)
+{
+ makeContextCurrent();
+ ::glStencilFuncSeparate(face, func, ref, mask);
+}
+
+void GraphicsContext3D::stencilMask(unsigned long mask)
+{
+ makeContextCurrent();
+ ::glStencilMask(mask);
+}
+
+void GraphicsContext3D::stencilMaskSeparate(unsigned long face, unsigned long mask)
+{
+ makeContextCurrent();
+ ::glStencilMaskSeparate(face, mask);
+}
+
+void GraphicsContext3D::stencilOp(unsigned long fail, unsigned long zfail, unsigned long zpass)
+{
+ makeContextCurrent();
+ ::glStencilOp(fail, zfail, zpass);
+}
+
+void GraphicsContext3D::stencilOpSeparate(unsigned long face, unsigned long fail, unsigned long zfail, unsigned long zpass)
+{
+ makeContextCurrent();
+ ::glStencilOpSeparate(face, fail, zfail, zpass);
+}
+
+void GraphicsContext3D::texParameterf(unsigned target, unsigned pname, float value)
+{
+ makeContextCurrent();
+ ::glTexParameterf(target, pname, static_cast<float>(value));
+}
+
+void GraphicsContext3D::texParameteri(unsigned target, unsigned pname, int value)
+{
+ makeContextCurrent();
+ ::glTexParameteri(target, pname, static_cast<float>(value));
+}
+
+void GraphicsContext3D::uniform1f(long location, float v0)
+{
+ makeContextCurrent();
+ ::glUniform1f(location, v0);
+}
+
+void GraphicsContext3D::uniform1fv(long location, float* array, int size)
+{
+ makeContextCurrent();
+ ::glUniform1fv(location, size, array);
+}
+
+void GraphicsContext3D::uniform2f(long location, float v0, float v1)
+{
+ makeContextCurrent();
+ ::glUniform2f(location, v0, v1);
+}
+
+void GraphicsContext3D::uniform2fv(long location, float* array, int size)
+{
+ // FIXME: length needs to be a multiple of 2
+ makeContextCurrent();
+ ::glUniform2fv(location, size, array);
+}
+
+void GraphicsContext3D::uniform3f(long location, float v0, float v1, float v2)
+{
+ makeContextCurrent();
+ ::glUniform3f(location, v0, v1, v2);
+}
+
+void GraphicsContext3D::uniform3fv(long location, float* array, int size)
+{
+ // FIXME: length needs to be a multiple of 3
+ makeContextCurrent();
+ ::glUniform3fv(location, size, array);
+}
+
+void GraphicsContext3D::uniform4f(long location, float v0, float v1, float v2, float v3)
+{
+ makeContextCurrent();
+ ::glUniform4f(location, v0, v1, v2, v3);
+}
+
+void GraphicsContext3D::uniform4fv(long location, float* array, int size)
+{
+ // FIXME: length needs to be a multiple of 4
+ makeContextCurrent();
+ ::glUniform4fv(location, size, array);
+}
+
+void GraphicsContext3D::uniform1i(long location, int v0)
+{
+ makeContextCurrent();
+ ::glUniform1i(location, v0);
+}
+
+void GraphicsContext3D::uniform1iv(long location, int* array, int size)
+{
+ makeContextCurrent();
+ ::glUniform1iv(location, size, array);
+}
+
+void GraphicsContext3D::uniform2i(long location, int v0, int v1)
+{
+ makeContextCurrent();
+ ::glUniform2i(location, v0, v1);
+}
+
+void GraphicsContext3D::uniform2iv(long location, int* array, int size)
+{
+ // FIXME: length needs to be a multiple of 2
+ makeContextCurrent();
+ ::glUniform2iv(location, size, array);
+}
+
+void GraphicsContext3D::uniform3i(long location, int v0, int v1, int v2)
+{
+ makeContextCurrent();
+ ::glUniform3i(location, v0, v1, v2);
+}
+
+void GraphicsContext3D::uniform3iv(long location, int* array, int size)
+{
+ // FIXME: length needs to be a multiple of 3
+ makeContextCurrent();
+ ::glUniform3iv(location, size, array);
+}
+
+void GraphicsContext3D::uniform4i(long location, int v0, int v1, int v2, int v3)
+{
+ makeContextCurrent();
+ ::glUniform4i(location, v0, v1, v2, v3);
+}
+
+void GraphicsContext3D::uniform4iv(long location, int* array, int size)
+{
+ // FIXME: length needs to be a multiple of 4
+ makeContextCurrent();
+ ::glUniform4iv(location, size, array);
+}
+
+void GraphicsContext3D::uniformMatrix2fv(long location, bool transpose, float* array, int size)
+{
+ // FIXME: length needs to be a multiple of 4
+ makeContextCurrent();
+ ::glUniformMatrix2fv(location, size, transpose, array);
+}
+
+void GraphicsContext3D::uniformMatrix3fv(long location, bool transpose, float* array, int size)
+{
+ // FIXME: length needs to be a multiple of 9
+ makeContextCurrent();
+ ::glUniformMatrix3fv(location, size, transpose, array);
+}
+
+void GraphicsContext3D::uniformMatrix4fv(long location, bool transpose, float* array, int size)
+{
+ // FIXME: length needs to be a multiple of 16
+ makeContextCurrent();
+ ::glUniformMatrix4fv(location, size, transpose, array);
+}
+
+void GraphicsContext3D::useProgram(Platform3DObject program)
+{
+ makeContextCurrent();
+ ::glUseProgram((GLuint) program);
+}
+
+void GraphicsContext3D::validateProgram(Platform3DObject program)
+{
+ ASSERT(program);
+
+ makeContextCurrent();
+ ::glValidateProgram((GLuint) program);
+}
+
+void GraphicsContext3D::vertexAttrib1f(unsigned long indx, float v0)
+{
+ makeContextCurrent();
+ ::glVertexAttrib1f(indx, v0);
+}
+
+void GraphicsContext3D::vertexAttrib1fv(unsigned long indx, float* array)
+{
+ makeContextCurrent();
+ ::glVertexAttrib1fv(indx, array);
+}
+
+void GraphicsContext3D::vertexAttrib2f(unsigned long indx, float v0, float v1)
+{
+ makeContextCurrent();
+ ::glVertexAttrib2f(indx, v0, v1);
+}
+
+void GraphicsContext3D::vertexAttrib2fv(unsigned long indx, float* array)
+{
+ makeContextCurrent();
+ ::glVertexAttrib2fv(indx, array);
+}
+
+void GraphicsContext3D::vertexAttrib3f(unsigned long indx, float v0, float v1, float v2)
+{
+ makeContextCurrent();
+ ::glVertexAttrib3f(indx, v0, v1, v2);
+}
+
+void GraphicsContext3D::vertexAttrib3fv(unsigned long indx, float* array)
+{
+ makeContextCurrent();
+ ::glVertexAttrib3fv(indx, array);
+}
+
+void GraphicsContext3D::vertexAttrib4f(unsigned long indx, float v0, float v1, float v2, float v3)
+{
+ makeContextCurrent();
+ ::glVertexAttrib4f(indx, v0, v1, v2, v3);
+}
+
+void GraphicsContext3D::vertexAttrib4fv(unsigned long indx, float* array)
+{
+ makeContextCurrent();
+ ::glVertexAttrib4fv(indx, array);
+}
+
+void GraphicsContext3D::vertexAttribPointer(unsigned long indx, int size, int type, bool normalized, unsigned long stride, unsigned long offset)
+{
+ makeContextCurrent();
+ ::glVertexAttribPointer(indx, size, type, normalized, stride, reinterpret_cast<void*>(static_cast<intptr_t>(offset)));
+}
+
+void GraphicsContext3D::viewport(long x, long y, unsigned long width, unsigned long height)
+{
+ makeContextCurrent();
+ ::glViewport(static_cast<GLint>(x), static_cast<GLint>(y), static_cast<GLsizei>(width), static_cast<GLsizei>(height));
+}
+
+void GraphicsContext3D::getBooleanv(unsigned long pname, unsigned char* value)
+{
+ makeContextCurrent();
+ ::glGetBooleanv(pname, value);
+}
+
+void GraphicsContext3D::getBufferParameteriv(unsigned long target, unsigned long pname, int* value)
+{
+ makeContextCurrent();
+ ::glGetBufferParameteriv(target, pname, value);
+}
+
+void GraphicsContext3D::getFloatv(unsigned long pname, float* value)
+{
+ makeContextCurrent();
+ ::glGetFloatv(pname, value);
+}
+
+void GraphicsContext3D::getFramebufferAttachmentParameteriv(unsigned long target, unsigned long attachment, unsigned long pname, int* value)
+{
+ makeContextCurrent();
+ if (attachment == DEPTH_STENCIL_ATTACHMENT)
+ attachment = DEPTH_ATTACHMENT; // Or STENCIL_ATTACHMENT, either works.
+ ::glGetFramebufferAttachmentParameterivEXT(target, attachment, pname, value);
+}
+
+void GraphicsContext3D::getIntegerv(unsigned long pname, int* value)
+{
+ // Need to emulate IMPLEMENTATION_COLOR_READ_FORMAT/TYPE for GL. Any valid
+ // combination should work, but GL_RGB/GL_UNSIGNED_BYTE might be the most
+ // useful for desktop WebGL users.
+ // Need to emulate MAX_FRAGMENT/VERTEX_UNIFORM_VECTORS and MAX_VARYING_VECTORS
+ // because desktop GL's corresponding queries return the number of components
+ // whereas GLES2 return the number of vectors (each vector has 4 components).
+ // Therefore, the value returned by desktop GL needs to be divided by 4.
+ makeContextCurrent();
+ switch (pname) {
+ case IMPLEMENTATION_COLOR_READ_FORMAT:
+ *value = GL_RGB;
+ break;
+ case IMPLEMENTATION_COLOR_READ_TYPE:
+ *value = GL_UNSIGNED_BYTE;
+ break;
+ case MAX_FRAGMENT_UNIFORM_VECTORS:
+ ::glGetIntegerv(GL_MAX_FRAGMENT_UNIFORM_COMPONENTS, value);
+ *value /= 4;
+ break;
+ case MAX_VERTEX_UNIFORM_VECTORS:
+ ::glGetIntegerv(GL_MAX_VERTEX_UNIFORM_COMPONENTS, value);
+ *value /= 4;
+ break;
+ case MAX_VARYING_VECTORS:
+ ::glGetIntegerv(GL_MAX_VARYING_FLOATS, value);
+ *value /= 4;
+ break;
+ default:
+ ::glGetIntegerv(pname, value);
+ }
+}
+
+void GraphicsContext3D::getProgramiv(Platform3DObject program, unsigned long pname, int* value)
+{
+ makeContextCurrent();
+ ::glGetProgramiv((GLuint) program, pname, value);
+}
+
+String GraphicsContext3D::getProgramInfoLog(Platform3DObject program)
+{
+ ASSERT(program);
+
+ makeContextCurrent();
+ GLint length;
+ ::glGetProgramiv((GLuint) program, GL_INFO_LOG_LENGTH, &length);
+
+ GLsizei size;
+ GLchar* info = (GLchar*) fastMalloc(length);
+ if (!info)
+ return "";
+
+ ::glGetProgramInfoLog((GLuint) program, length, &size, info);
+ String s(info);
+ fastFree(info);
+ return s;
+}
+
+void GraphicsContext3D::getRenderbufferParameteriv(unsigned long target, unsigned long pname, int* value)
+{
+ makeContextCurrent();
+ ::glGetRenderbufferParameterivEXT(target, pname, value);
+}
+
+void GraphicsContext3D::getShaderiv(Platform3DObject shader, unsigned long pname, int* value)
+{
+ ASSERT(shader);
+
+ makeContextCurrent();
+
+ HashMap<Platform3DObject, ShaderSourceEntry>::iterator result = m_shaderSourceMap.find(shader);
+
+ switch (pname) {
+ case DELETE_STATUS:
+ case SHADER_TYPE:
+ // Let OpenGL handle these.
+
+ ::glGetShaderiv((GLuint) shader, pname, value);
+ break;
+
+ case COMPILE_STATUS:
+ if (result == m_shaderSourceMap.end()) {
+ (*value) = static_cast<int>(false);
+ return;
+ }
+
+ (*value) = static_cast<int>(result->second.isValid);
+ break;
+
+ case INFO_LOG_LENGTH:
+ if (result == m_shaderSourceMap.end()) {
+ (*value) = 0;
+ return;
+ }
+
+ (*value) = getShaderInfoLog(shader).length();
+ break;
+
+ case SHADER_SOURCE_LENGTH:
+ (*value) = getShaderSource(shader).length();
+ break;
+
+ default:
+ synthesizeGLError(INVALID_ENUM);
+ }
+}
+
+String GraphicsContext3D::getShaderInfoLog(Platform3DObject shader)
+{
+ ASSERT(shader);
+
+ makeContextCurrent();
+ GLint length;
+ ::glGetShaderiv((GLuint) shader, GL_INFO_LOG_LENGTH, &length);
+
+ HashMap<Platform3DObject, ShaderSourceEntry>::iterator result = m_shaderSourceMap.find(shader);
+
+ if (result == m_shaderSourceMap.end())
+ return "";
+
+ ShaderSourceEntry entry = result->second;
+
+ if (entry.isValid) {
+ GLint length;
+ ::glGetShaderiv((GLuint) shader, GL_INFO_LOG_LENGTH, &length);
+
+ GLsizei size;
+ GLchar* info = (GLchar*) fastMalloc(length);
+ if (!info)
+ return "";
+
+ ::glGetShaderInfoLog((GLuint) shader, length, &size, info);
+
+ String s(info);
+ fastFree(info);
+ return s;
+ }
+ else {
+ return entry.log;
+ }
+}
+
+String GraphicsContext3D::getShaderSource(Platform3DObject shader)
+{
+ ASSERT(shader);
+
+ makeContextCurrent();
+
+ HashMap<Platform3DObject, ShaderSourceEntry>::iterator result = m_shaderSourceMap.find(shader);
+
+ if (result == m_shaderSourceMap.end())
+ return "";
+
+ return result->second.source;
+}
+
+
+void GraphicsContext3D::getTexParameterfv(unsigned long target, unsigned long pname, float* value)
+{
+ makeContextCurrent();
+ ::glGetTexParameterfv(target, pname, value);
+}
+
+void GraphicsContext3D::getTexParameteriv(unsigned long target, unsigned long pname, int* value)
+{
+ makeContextCurrent();
+ ::glGetTexParameteriv(target, pname, value);
+}
+
+void GraphicsContext3D::getUniformfv(Platform3DObject program, long location, float* value)
+{
+ makeContextCurrent();
+ ::glGetUniformfv((GLuint) program, location, value);
+}
+
+void GraphicsContext3D::getUniformiv(Platform3DObject program, long location, int* value)
+{
+ makeContextCurrent();
+ ::glGetUniformiv((GLuint) program, location, value);
+}
+
+long GraphicsContext3D::getUniformLocation(Platform3DObject program, const String& name)
+{
+ ASSERT(program);
+
+ makeContextCurrent();
+ return ::glGetUniformLocation((GLuint) program, name.utf8().data());
+}
+
+void GraphicsContext3D::getVertexAttribfv(unsigned long index, unsigned long pname, float* value)
+{
+ makeContextCurrent();
+ ::glGetVertexAttribfv(index, pname, value);
+}
+
+void GraphicsContext3D::getVertexAttribiv(unsigned long index, unsigned long pname, int* value)
+{
+ makeContextCurrent();
+ ::glGetVertexAttribiv(index, pname, value);
+}
+
+long GraphicsContext3D::getVertexAttribOffset(unsigned long index, unsigned long pname)
+{
+ makeContextCurrent();
+
+ void* pointer;
+ ::glGetVertexAttribPointerv(index, pname, &pointer);
+ return reinterpret_cast<long>(pointer);
+}
+
+int GraphicsContext3D::texImage2D(unsigned target, unsigned level, unsigned internalformat, unsigned width, unsigned height, unsigned border, unsigned format, unsigned type, void* pixels)
+{
+ makeContextCurrent();
+
+ ::glTexImage2D(target, level, internalformat, width, height, border, format, type, pixels);
+ return 0;
+}
+
+int GraphicsContext3D::texSubImage2D(unsigned target, unsigned level, unsigned xoff, unsigned yoff, unsigned width, unsigned height, unsigned format, unsigned type, void* pixels)
+{
+ makeContextCurrent();
+
+ // FIXME: we will need to deal with PixelStore params when dealing with image buffers that differ from the subimage size
+ ::glTexSubImage2D(target, level, xoff, yoff, width, height, format, type, pixels);
+ return 0;
+}
+
+unsigned GraphicsContext3D::createBuffer()
+{
+ makeContextCurrent();
+ GLuint o;
+ glGenBuffers(1, &o);
+ return o;
+}
+
+unsigned GraphicsContext3D::createFramebuffer()
+{
+ makeContextCurrent();
+ GLuint o;
+ glGenFramebuffersEXT(1, &o);
+ return o;
+}
+
+unsigned GraphicsContext3D::createProgram()
+{
+ makeContextCurrent();
+ return glCreateProgram();
+}
+
+unsigned GraphicsContext3D::createRenderbuffer()
+{
+ makeContextCurrent();
+ GLuint o;
+ glGenRenderbuffersEXT(1, &o);
+ return o;
+}
+
+unsigned GraphicsContext3D::createShader(unsigned long type)
+{
+ makeContextCurrent();
+ return glCreateShader((type == FRAGMENT_SHADER) ? GL_FRAGMENT_SHADER : GL_VERTEX_SHADER);
+}
+
+unsigned GraphicsContext3D::createTexture()
+{
+ makeContextCurrent();
+ GLuint o;
+ glGenTextures(1, &o);
+ return o;
+}
+
+void GraphicsContext3D::deleteBuffer(unsigned buffer)
+{
+ makeContextCurrent();
+ glDeleteBuffers(1, &buffer);
+}
+
+void GraphicsContext3D::deleteFramebuffer(unsigned framebuffer)
+{
+ makeContextCurrent();
+ glDeleteFramebuffersEXT(1, &framebuffer);
+}
+
+void GraphicsContext3D::deleteProgram(unsigned program)
+{
+ makeContextCurrent();
+ glDeleteProgram(program);
+}
+
+void GraphicsContext3D::deleteRenderbuffer(unsigned renderbuffer)
+{
+ makeContextCurrent();
+ glDeleteRenderbuffersEXT(1, &renderbuffer);
+}
+
+void GraphicsContext3D::deleteShader(unsigned shader)
+{
+ makeContextCurrent();
+ glDeleteShader(shader);
+}
+
+void GraphicsContext3D::deleteTexture(unsigned texture)
+{
+ makeContextCurrent();
+ glDeleteTextures(1, &texture);
+}
+
+int GraphicsContext3D::sizeInBytes(int type)
+{
+ switch (type) {
+ case GL_BYTE:
+ return sizeof(GLbyte);
+ case GL_UNSIGNED_BYTE:
+ return sizeof(GLubyte);
+ case GL_SHORT:
+ return sizeof(GLshort);
+ case GL_UNSIGNED_SHORT:
+ return sizeof(GLushort);
+ case GL_INT:
+ return sizeof(GLint);
+ case GL_UNSIGNED_INT:
+ return sizeof(GLuint);
+ case GL_FLOAT:
+ return sizeof(GLfloat);
+ default:
+ return 0;
+ }
+}
+
+void GraphicsContext3D::synthesizeGLError(unsigned long error)
+{
+ m_syntheticErrors.add(error);
+}
+
+}
+
+#endif // ENABLE(3D_CANVAS)
--
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