void VideoLayerChromium::drawYUV(const SharedValues* sv)
{
GraphicsContext3D* context = layerRendererContext();
GLC(context, context->activeTexture(GraphicsContext3D::TEXTURE1));
GLC(context, context->bindTexture(GraphicsContext3D::TEXTURE_2D, m_textures[VideoFrameChromium::yPlane]));
GLC(context, context->activeTexture(GraphicsContext3D::TEXTURE2));
GLC(context, context->bindTexture(GraphicsContext3D::TEXTURE_2D, m_textures[VideoFrameChromium::uPlane]));
GLC(context, context->activeTexture(GraphicsContext3D::TEXTURE3));
GLC(context, context->bindTexture(GraphicsContext3D::TEXTURE_2D, m_textures[VideoFrameChromium::vPlane]));
layerRenderer()->useShader(sv->yuvShaderProgram());
unsigned frameWidth = m_frameSizes[VideoFrameChromium::yPlane].width();
unsigned textureWidth = m_textureSizes[VideoFrameChromium::yPlane].width();
float widthScaleFactor = static_cast<float>(frameWidth) / textureWidth;
GLC(context, context->uniform1f(sv->yuvWidthScaleFactorLocation(), widthScaleFactor));
GLC(context, context->uniform1i(sv->yTextureLocation(), 1));
GLC(context, context->uniform1i(sv->uTextureLocation(), 2));
GLC(context, context->uniform1i(sv->vTextureLocation(), 3));
GLC(context, context->uniformMatrix3fv(sv->ccMatrixLocation(), 0, const_cast<float*>(yuv2RGB), 1));
drawTexturedQuad(context, layerRenderer()->projectionMatrix(), drawTransform(),
bounds().width(), bounds().height(), drawOpacity(),
sv->yuvShaderMatrixLocation(), sv->yuvAlphaLocation());
// Reset active texture back to texture 0.
GLC(context, context->activeTexture(GraphicsContext3D::TEXTURE0));
}
void ContentLayerChromium::draw()
{
if (m_skipsDraw)
return;
ASSERT(layerRenderer());
const ContentLayerChromium::SharedValues* sv = layerRenderer()->contentLayerSharedValues();
ASSERT(sv && sv->initialized());
GraphicsContext3D* context = layerRendererContext();
GLC(context, context->activeTexture(GraphicsContext3D::TEXTURE0));
GLC(context, context->bindTexture(GraphicsContext3D::TEXTURE_2D, m_contentsTexture));
layerRenderer()->useShader(sv->contentShaderProgram());
GLC(context, context->uniform1i(sv->shaderSamplerLocation(), 0));
if (requiresClippedUpdateRect()) {
float m43 = drawTransform().m43();
TransformationMatrix transform;
transform.translate3d(m_largeLayerDrawRect.center().x(), m_largeLayerDrawRect.center().y(), m43);
drawTexturedQuad(context, layerRenderer()->projectionMatrix(),
transform, m_largeLayerDrawRect.width(),
m_largeLayerDrawRect.height(), drawOpacity(),
sv->shaderMatrixLocation(), sv->shaderAlphaLocation());
} else {
drawTexturedQuad(context, layerRenderer()->projectionMatrix(),
drawTransform(), m_bounds.width(), m_bounds.height(),
drawOpacity(), sv->shaderMatrixLocation(),
sv->shaderAlphaLocation());
}
}
void CCTextureLayerImpl::willDraw(LayerRendererChromium* layerRenderer)
{
CCLayerImpl::willDraw(layerRenderer);
if (m_ioSurfaceChanged) {
GraphicsContext3D* context = layerRenderer->context();
Extensions3DChromium* extensions = static_cast<Extensions3DChromium*>(context->getExtensions());
ASSERT(extensions->supports("GL_CHROMIUM_iosurface"));
ASSERT(extensions->supports("GL_ARB_texture_rectangle"));
if (!m_ioSurfaceTextureId)
m_ioSurfaceTextureId = context->createTexture();
GLC(context, context->activeTexture(GraphicsContext3D::TEXTURE0));
GLC(context, context->bindTexture(Extensions3D::TEXTURE_RECTANGLE_ARB, m_ioSurfaceTextureId));
GLC(context, context->texParameteri(Extensions3D::TEXTURE_RECTANGLE_ARB, GraphicsContext3D::TEXTURE_MIN_FILTER, GraphicsContext3D::LINEAR));
GLC(context, context->texParameteri(Extensions3D::TEXTURE_RECTANGLE_ARB, GraphicsContext3D::TEXTURE_MAG_FILTER, GraphicsContext3D::LINEAR));
GLC(context, context->texParameteri(Extensions3D::TEXTURE_RECTANGLE_ARB, GraphicsContext3D::TEXTURE_WRAP_S, GraphicsContext3D::CLAMP_TO_EDGE));
GLC(context, context->texParameteri(Extensions3D::TEXTURE_RECTANGLE_ARB, GraphicsContext3D::TEXTURE_WRAP_T, GraphicsContext3D::CLAMP_TO_EDGE));
extensions->texImageIOSurface2DCHROMIUM(Extensions3D::TEXTURE_RECTANGLE_ARB,
m_ioSurfaceSize.width(),
m_ioSurfaceSize.height(),
m_ioSurfaceId,
0);
// Do not check for error conditions. texImageIOSurface2DCHROMIUM is supposed to hold on to
// the last good IOSurface if the new one is already closed. This is only a possibility
// during live resizing of plugins. However, it seems that this is not sufficient to
// completely guard against garbage being drawn. If this is found to be a significant issue,
// it may be necessary to explicitly tell the embedder when to free the surfaces it has
// allocated.
m_ioSurfaceChanged = false;
}
}
void Canvas2DLayerChromium::updateCompositorResources()
{
if (!m_contentsDirty || !m_drawingBuffer)
return;
if (m_textureChanged) { // We have to generate a new backing texture.
GraphicsContext3D* context = layerRendererContext();
if (m_textureId)
context->deleteTexture(m_textureId);
m_textureId = context->createTexture();
context->activeTexture(GraphicsContext3D::TEXTURE0);
context->bindTexture(GraphicsContext3D::TEXTURE_2D, m_textureId);
IntSize size = m_drawingBuffer->size();
context->texImage2DResourceSafe(GraphicsContext3D::TEXTURE_2D, 0, GraphicsContext3D::RGBA, size.width(), size.height(), 0, GraphicsContext3D::RGBA, GraphicsContext3D::UNSIGNED_BYTE);
// Set the min-mag filters to linear and wrap modes to GraphicsContext3D::CLAMP_TO_EDGE
// to get around NPOT texture limitations of GLES.
context->texParameteri(GraphicsContext3D::TEXTURE_2D, GraphicsContext3D::TEXTURE_MIN_FILTER, GraphicsContext3D::LINEAR);
context->texParameteri(GraphicsContext3D::TEXTURE_2D, GraphicsContext3D::TEXTURE_MAG_FILTER, GraphicsContext3D::LINEAR);
context->texParameteri(GraphicsContext3D::TEXTURE_2D, GraphicsContext3D::TEXTURE_WRAP_S, GraphicsContext3D::CLAMP_TO_EDGE);
context->texParameteri(GraphicsContext3D::TEXTURE_2D, GraphicsContext3D::TEXTURE_WRAP_T, GraphicsContext3D::CLAMP_TO_EDGE);
m_textureChanged = false;
// FIXME: The finish() here is required because we have to make sure that the texture created in this
// context (the compositor context) is actually created by the service side before the child context
// attempts to use it (in publishToPlatformLayer). finish() is currently the only call with strong
// enough semantics to promise this, but is actually much stronger. Ideally we'd do something like
// inserting a fence here and waiting for it before trying to publish.
context->finish();
}
// Update the contents of the texture used by the compositor.
if (m_contentsDirty) {
m_drawingBuffer->publishToPlatformLayer();
m_contentsDirty = false;
}
}
void CCVideoLayerImpl::drawYUV(LayerRendererChromium* layerRenderer) const
{
const YUVProgram* program = layerRenderer->videoLayerYUVProgram();
ASSERT(program && program->initialized());
GraphicsContext3D* context = layerRenderer->context();
CCVideoLayerImpl::Texture yTexture = m_textures[VideoFrameChromium::yPlane];
CCVideoLayerImpl::Texture uTexture = m_textures[VideoFrameChromium::uPlane];
CCVideoLayerImpl::Texture vTexture = m_textures[VideoFrameChromium::vPlane];
GLC(context, context->activeTexture(GraphicsContext3D::TEXTURE1));
GLC(context, context->bindTexture(GraphicsContext3D::TEXTURE_2D, yTexture.id));
GLC(context, context->activeTexture(GraphicsContext3D::TEXTURE2));
GLC(context, context->bindTexture(GraphicsContext3D::TEXTURE_2D, uTexture.id));
GLC(context, context->activeTexture(GraphicsContext3D::TEXTURE3));
GLC(context, context->bindTexture(GraphicsContext3D::TEXTURE_2D, vTexture.id));
GLC(context, context->useProgram(program->program()));
float yWidthScaleFactor = static_cast<float>(yTexture.visibleSize.width()) / yTexture.size.width();
// Arbitrarily take the u sizes because u and v dimensions are identical.
float uvWidthScaleFactor = static_cast<float>(uTexture.visibleSize.width()) / uTexture.size.width();
GLC(context, context->uniform1f(program->vertexShader().yWidthScaleFactorLocation(), yWidthScaleFactor));
GLC(context, context->uniform1f(program->vertexShader().uvWidthScaleFactorLocation(), uvWidthScaleFactor));
GLC(context, context->uniform1i(program->fragmentShader().yTextureLocation(), 1));
GLC(context, context->uniform1i(program->fragmentShader().uTextureLocation(), 2));
GLC(context, context->uniform1i(program->fragmentShader().vTextureLocation(), 3));
GLC(context, context->uniformMatrix3fv(program->fragmentShader().ccMatrixLocation(), 0, const_cast<float*>(yuv2RGB), 1));
GLC(context, context->uniform3fv(program->fragmentShader().yuvAdjLocation(), const_cast<float*>(yuvAdjust), 1));
layerRenderer->drawTexturedQuad(drawTransform(), bounds().width(), bounds().height(), drawOpacity(), FloatQuad(),
program->vertexShader().matrixLocation(),
program->fragmentShader().alphaLocation(),
-1);
// Reset active texture back to texture 0.
GLC(context, context->activeTexture(GraphicsContext3D::TEXTURE0));
}
void ContentLayerChromium::draw()
{
if (m_skipsDraw)
return;
ASSERT(layerRenderer());
const ContentLayerChromium::SharedValues* sv = layerRenderer()->contentLayerSharedValues();
ASSERT(sv && sv->initialized());
GraphicsContext3D* context = layerRendererContext();
GLC(context, context->activeTexture(GraphicsContext3D::TEXTURE0));
GLC(context, context->bindTexture(GraphicsContext3D::TEXTURE_2D, m_contentsTexture));
layerRenderer()->useShader(sv->contentShaderProgram());
GLC(context, context->uniform1i(sv->shaderSamplerLocation(), 0));
drawTexturedQuad(context, layerRenderer()->projectionMatrix(), drawTransform(),
bounds().width(), bounds().height(), drawOpacity(),
sv->shaderMatrixLocation(), sv->shaderAlphaLocation());
}
void VideoLayerChromium::drawRGBA(const SharedValues* sv)
{
GraphicsContext3D* context = layerRendererContext();
GLC(context, context->activeTexture(GraphicsContext3D::TEXTURE0));
GLC(context, context->bindTexture(GraphicsContext3D::TEXTURE_2D, m_textures[VideoFrameChromium::rgbPlane]));
layerRenderer()->useShader(sv->rgbaShaderProgram());
unsigned frameWidth = m_frameSizes[VideoFrameChromium::rgbPlane].width();
unsigned textureWidth = m_textureSizes[VideoFrameChromium::rgbPlane].width();
float widthScaleFactor = static_cast<float>(frameWidth) / textureWidth;
GLC(context, context->uniform1f(sv->rgbaWidthScaleFactorLocation(), widthScaleFactor));
GLC(context, context->uniform1i(sv->rgbaTextureLocation(), 0));
drawTexturedQuad(context, layerRenderer()->projectionMatrix(), drawTransform(),
bounds().width(), bounds().height(), drawOpacity(),
sv->rgbaShaderMatrixLocation(), sv->rgbaAlphaLocation());
}
void CCCanvasLayerImpl::draw(const IntRect&)
{
ASSERT(layerRenderer());
const CCCanvasLayerImpl::Program* program = layerRenderer()->canvasLayerProgram();
ASSERT(program && program->initialized());
GraphicsContext3D* context = layerRenderer()->context();
GLC(context, context->activeTexture(GraphicsContext3D::TEXTURE0));
GLC(context, context->bindTexture(GraphicsContext3D::TEXTURE_2D, m_textureId));
GC3Denum sfactor = m_premultipliedAlpha ? GraphicsContext3D::ONE : GraphicsContext3D::SRC_ALPHA;
GLC(context, context->blendFunc(sfactor, GraphicsContext3D::ONE_MINUS_SRC_ALPHA));
layerRenderer()->useShader(program->program());
GLC(context, context->uniform1i(program->fragmentShader().samplerLocation(), 0));
LayerChromium::drawTexturedQuad(context, layerRenderer()->projectionMatrix(), drawTransform(),
bounds().width(), bounds().height(), drawOpacity(),
program->vertexShader().matrixLocation(),
program->fragmentShader().alphaLocation());
}
void CCVideoLayerImpl::drawNativeTexture(LayerRendererChromium* layerRenderer) const
{
const NativeTextureProgram* program = layerRenderer->videoLayerNativeTextureProgram();
ASSERT(program && program->initialized());
GraphicsContext3D* context = layerRenderer->context();
GLC(context, context->activeTexture(GraphicsContext3D::TEXTURE0));
GLC(context, context->bindTexture(GraphicsContext3D::TEXTURE_2D, m_nativeTextureId));
GLC(context, context->useProgram(program->program()));
float widthScaleFactor = static_cast<float>(m_nativeTextureVisibleSize.width()) / m_nativeTextureSize.width();
GLC(context, context->uniform4f(program->vertexShader().texTransformLocation(), 0, 0, widthScaleFactor, 1));
GLC(context, context->uniform1i(program->fragmentShader().samplerLocation(), 0));
layerRenderer->drawTexturedQuad(drawTransform(), bounds().width(), bounds().height(), drawOpacity(), layerRenderer->sharedGeometryQuad(),
program->vertexShader().matrixLocation(),
program->fragmentShader().alphaLocation(),
-1);
}
void CCPluginLayerImpl::draw()
{
ASSERT(layerRenderer());
const CCPluginLayerImpl::Program* program = layerRenderer()->pluginLayerProgram();
ASSERT(program && program->initialized());
GraphicsContext3D* context = layerRenderer()->context();
GLC(context, context->activeTexture(GraphicsContext3D::TEXTURE0));
GLC(context, context->bindTexture(GraphicsContext3D::TEXTURE_2D, m_textureId));
// FIXME: setting the texture parameters every time is redundant. Move this code somewhere
// where it will only happen once per texture.
GLC(context, context->texParameteri(GraphicsContext3D::TEXTURE_2D, GraphicsContext3D::TEXTURE_MIN_FILTER, GraphicsContext3D::LINEAR));
GLC(context, context->texParameteri(GraphicsContext3D::TEXTURE_2D, GraphicsContext3D::TEXTURE_MAG_FILTER, GraphicsContext3D::LINEAR));
GLC(context, context->texParameteri(GraphicsContext3D::TEXTURE_2D, GraphicsContext3D::TEXTURE_WRAP_S, GraphicsContext3D::CLAMP_TO_EDGE));
GLC(context, context->texParameteri(GraphicsContext3D::TEXTURE_2D, GraphicsContext3D::TEXTURE_WRAP_T, GraphicsContext3D::CLAMP_TO_EDGE));
layerRenderer()->useShader(program->program());
GLC(context, context->uniform1i(program->fragmentShader().samplerLocation(), 0));
LayerChromium::drawTexturedQuad(context, layerRenderer()->projectionMatrix(), drawTransform(),
bounds().width(), bounds().height(), drawOpacity(),
program->vertexShader().matrixLocation(),
program->fragmentShader().alphaLocation());
}
void CCHeadsUpDisplay::draw()
{
GraphicsContext3D* context = m_layerRenderer->context();
if (!m_hudTexture)
m_hudTexture = ManagedTexture::create(m_layerRenderer->renderSurfaceTextureManager());
// Use a fullscreen texture only if we need to...
IntSize hudSize;
if (settings().showPlatformLayerTree) {
hudSize.setWidth(min(2048, m_layerRenderer->viewportWidth()));
hudSize.setHeight(min(2048, m_layerRenderer->viewportHeight()));
} else {
hudSize.setWidth(512);
hudSize.setHeight(128);
}
if (!m_hudTexture->reserve(hudSize, GraphicsContext3D::RGBA))
return;
// Render pixels into the texture.
PlatformCanvas canvas;
canvas.resize(hudSize);
{
PlatformCanvas::Painter painter(&canvas, PlatformCanvas::Painter::GrayscaleText);
drawHudContents(painter.context(), hudSize);
}
// Upload to GL.
{
PlatformCanvas::AutoLocker locker(&canvas);
m_hudTexture->bindTexture(context, m_layerRenderer->renderSurfaceTextureAllocator());
bool uploadedViaMap = false;
if (m_useMapSubForUploads) {
Extensions3DChromium* extensions = static_cast<Extensions3DChromium*>(context->getExtensions());
uint8_t* pixelDest = static_cast<uint8_t*>(extensions->mapTexSubImage2DCHROMIUM(GraphicsContext3D::TEXTURE_2D, 0, 0, 0, hudSize.width(), hudSize.height(), GraphicsContext3D::RGBA, GraphicsContext3D::UNSIGNED_BYTE, Extensions3DChromium::WRITE_ONLY));
if (pixelDest) {
uploadedViaMap = true;
memcpy(pixelDest, locker.pixels(), hudSize.width() * hudSize.height() * 4);
extensions->unmapTexSubImage2DCHROMIUM(pixelDest);
}
}
if (!uploadedViaMap) {
GLC(context, context->texImage2D(GraphicsContext3D::TEXTURE_2D, 0, GraphicsContext3D::RGBA, canvas.size().width(), canvas.size().height(), 0, GraphicsContext3D::RGBA, GraphicsContext3D::UNSIGNED_BYTE, locker.pixels()));
}
}
// Draw the HUD onto the default render surface.
const Program* program = m_layerRenderer->headsUpDisplayProgram();
ASSERT(program && program->initialized());
GLC(context, context->activeTexture(GraphicsContext3D::TEXTURE0));
m_hudTexture->bindTexture(context, m_layerRenderer->renderSurfaceTextureAllocator());
GLC(context, context->useProgram(program->program()));
GLC(context, context->uniform1i(program->fragmentShader().samplerLocation(), 0));
TransformationMatrix matrix;
matrix.translate3d(hudSize.width() * 0.5, hudSize.height() * 0.5, 0);
m_layerRenderer->drawTexturedQuad(matrix, hudSize.width(), hudSize.height(),
1.0f, m_layerRenderer->sharedGeometryQuad(), program->vertexShader().matrixLocation(),
program->fragmentShader().alphaLocation(),
-1);
m_hudTexture->unreserve();
}
void CCPluginLayerImpl::draw(LayerRendererChromium* layerRenderer)
{
ASSERT(CCProxy::isImplThread());
if (m_ioSurfaceChanged) {
GraphicsContext3D* context = layerRenderer->context();
Extensions3DChromium* extensions = static_cast<Extensions3DChromium*>(context->getExtensions());
ASSERT(extensions->supports("GL_CHROMIUM_iosurface"));
ASSERT(extensions->supports("GL_ARB_texture_rectangle"));
if (!m_ioSurfaceTextureId)
m_ioSurfaceTextureId = context->createTexture();
GLC(context, context->activeTexture(GraphicsContext3D::TEXTURE0));
GLC(context, context->bindTexture(Extensions3D::TEXTURE_RECTANGLE_ARB, m_ioSurfaceTextureId));
GLC(context, context->texParameteri(Extensions3D::TEXTURE_RECTANGLE_ARB, GraphicsContext3D::TEXTURE_MIN_FILTER, GraphicsContext3D::LINEAR));
GLC(context, context->texParameteri(Extensions3D::TEXTURE_RECTANGLE_ARB, GraphicsContext3D::TEXTURE_MAG_FILTER, GraphicsContext3D::LINEAR));
GLC(context, context->texParameteri(Extensions3D::TEXTURE_RECTANGLE_ARB, GraphicsContext3D::TEXTURE_WRAP_S, GraphicsContext3D::CLAMP_TO_EDGE));
GLC(context, context->texParameteri(Extensions3D::TEXTURE_RECTANGLE_ARB, GraphicsContext3D::TEXTURE_WRAP_T, GraphicsContext3D::CLAMP_TO_EDGE));
extensions->texImageIOSurface2DCHROMIUM(Extensions3D::TEXTURE_RECTANGLE_ARB,
m_ioSurfaceWidth,
m_ioSurfaceHeight,
m_ioSurfaceId,
0);
// Do not check for error conditions. texImageIOSurface2DCHROMIUM is supposed to hold on to
// the last good IOSurface if the new one is already closed. This is only a possibility
// during live resizing of plugins. However, it seems that this is not sufficient to
// completely guard against garbage being drawn. If this is found to be a significant issue,
// it may be necessary to explicitly tell the embedder when to free the surfaces it has
// allocated.
m_ioSurfaceChanged = false;
}
if (m_ioSurfaceTextureId) {
TexTransformPluginProgramBinding binding;
if (m_flipped)
binding.set(layerRenderer->pluginLayerTexRectProgramFlip());
else
binding.set(layerRenderer->pluginLayerTexRectProgram());
GraphicsContext3D* context = layerRenderer->context();
GLC(context, context->activeTexture(GraphicsContext3D::TEXTURE0));
GLC(context, context->bindTexture(Extensions3D::TEXTURE_RECTANGLE_ARB, m_ioSurfaceTextureId));
GLC(context, context->useProgram(binding.programId));
GLC(context, context->uniform1i(binding.samplerLocation, 0));
// Note: this code path ignores m_uvRect.
GLC(context, context->uniform4f(binding.texTransformLocation, 0, 0, m_ioSurfaceWidth, m_ioSurfaceHeight));
layerRenderer->drawTexturedQuad(drawTransform(), bounds().width(), bounds().height(), drawOpacity(), layerRenderer->sharedGeometryQuad(),
binding.matrixLocation,
binding.alphaLocation,
-1);
GLC(context, context->bindTexture(Extensions3D::TEXTURE_RECTANGLE_ARB, 0));
} else {
TexStretchPluginProgramBinding binding;
if (m_flipped)
binding.set(layerRenderer->pluginLayerProgramFlip());
else
binding.set(layerRenderer->pluginLayerProgram());
GraphicsContext3D* context = layerRenderer->context();
GLC(context, context->activeTexture(GraphicsContext3D::TEXTURE0));
GLC(context, context->bindTexture(GraphicsContext3D::TEXTURE_2D, m_textureId));
// FIXME: setting the texture parameters every time is redundant. Move this code somewhere
// where it will only happen once per texture.
GLC(context, context->texParameteri(GraphicsContext3D::TEXTURE_2D, GraphicsContext3D::TEXTURE_MIN_FILTER, GraphicsContext3D::LINEAR));
GLC(context, context->texParameteri(GraphicsContext3D::TEXTURE_2D, GraphicsContext3D::TEXTURE_MAG_FILTER, GraphicsContext3D::LINEAR));
GLC(context, context->texParameteri(GraphicsContext3D::TEXTURE_2D, GraphicsContext3D::TEXTURE_WRAP_S, GraphicsContext3D::CLAMP_TO_EDGE));
GLC(context, context->texParameteri(GraphicsContext3D::TEXTURE_2D, GraphicsContext3D::TEXTURE_WRAP_T, GraphicsContext3D::CLAMP_TO_EDGE));
GLC(context, context->useProgram(binding.programId));
GLC(context, context->uniform1i(binding.samplerLocation, 0));
GLC(context, context->uniform2f(binding.offsetLocation, m_uvRect.x(), m_uvRect.y()));
GLC(context, context->uniform2f(binding.scaleLocation, m_uvRect.width(), m_uvRect.height()));
layerRenderer->drawTexturedQuad(drawTransform(), bounds().width(), bounds().height(), drawOpacity(), layerRenderer->sharedGeometryQuad(),
binding.matrixLocation,
binding.alphaLocation,
-1);
}
}