Plumb through cropped output size for VideoFrame

cc/gl_renderer.cc

 // Copyright 2010 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 "config.h"
 
 #include "cc/gl_renderer.h"
 
 #include "base/debug/trace_event.h"
 #include "base/logging.h"
@@ skipping 849 matching lines @@
     ResourceProvider::ScopedReadLockGL vPlaneLock(m_resourceProvider, vPlane.resourceId);
     GLC(context(), context()->activeTexture(GL_TEXTURE1));
     GLC(context(), context()->bindTexture(GL_TEXTURE_2D, yPlaneLock.textureId()));
     GLC(context(), context()->activeTexture(GL_TEXTURE2));
     GLC(context(), context()->bindTexture(GL_TEXTURE_2D, uPlaneLock.textureId()));
     GLC(context(), context()->activeTexture(GL_TEXTURE3));
     GLC(context(), context()->bindTexture(GL_TEXTURE_2D, vPlaneLock.textureId()));
 
     GLC(context(), context()->useProgram(program->program()));
 
-    float yWidthScaleFactor = static_cast<float>(yPlane.visibleSize.width()) / yPlane.size.width();
-    // Arbitrarily take the u sizes because u and v dimensions are identical.
-    float uvWidthScaleFactor = static_cast<float>(uPlane.visibleSize.width()) / uPlane.size.width();
-    GLC(context(), context()->uniform1f(program->vertexShader().yWidthScaleFactorLocation(), yWidthScaleFactor));
-    GLC(context(), context()->uniform1f(program->vertexShader().uvWidthScaleFactorLocation(), uvWidthScaleFactor));
-
+    GLC(context(), context()->uniform2f(program->vertexShader().texScaleLocation(), quad->texScale().width(), quad->texScale().height()));
     GLC(context(), context()->uniform1i(program->fragmentShader().yTextureLocation(), 1));
     GLC(context(), context()->uniform1i(program->fragmentShader().uTextureLocation(), 2));
     GLC(context(), context()->uniform1i(program->fragmentShader().vTextureLocation(), 3));
 
     // These values are magic numbers that are used in the transformation from YUV to RGB color values.
     // They are taken from the following webpage: http://www.fourcc.org/fccyvrgb.php
     float yuv2RGB[9] = {
         1.164f, 1.164f, 1.164f,
         0.f, -.391f, 2.018f,
         1.596f, -.813f, 0.f,
@@ skipping 739 matching lines @@
 
     releaseRenderPassTextures();
 }
 
 bool GLRenderer::isContextLost()
 {
     return (m_context->getGraphicsResetStatusARB() != GL_NO_ERROR);
 }
 
 }  // namespace cc