cc: Rename Texture class to Resource.

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"
 #include "base/string_split.h"
 #include "base/string_util.h"
 #include "cc/damage_tracker.h"
 #include "cc/geometry_binding.h"
 #include "cc/layer_quad.h"
 #include "cc/math_util.h"
 #include "cc/platform_color.h"
 #include "cc/priority_calculator.h"
 #include "cc/proxy.h"
 #include "cc/render_pass.h"
 #include "cc/render_surface_filters.h"
-#include "cc/scoped_texture.h"
+#include "cc/scoped_resource.h"
 #include "cc/settings.h"
 #include "cc/single_thread_proxy.h"
 #include "cc/stream_video_draw_quad.h"
 #include "cc/texture_draw_quad.h"
 #include "cc/video_layer_impl.h"
 #include "third_party/khronos/GLES2/gl2.h"
 #include "third_party/khronos/GLES2/gl2ext.h"
 #include "third_party/skia/include/core/SkBitmap.h"
 #include "third_party/skia/include/core/SkColor.h"
 #include "third_party/skia/include/gpu/GrContext.h"
@@ skipping 318 matching lines @@
 }
 
 static GrContext* getFilterGrContext(bool hasImplThread)
 {
     if (hasImplThread)
         return WebSharedGraphicsContext3D::compositorThreadGrContext();
     else
         return WebSharedGraphicsContext3D::mainThreadGrContext();
 }
 
-static inline SkBitmap applyFilters(GLRenderer* renderer, const WebKit::WebFilterOperations& filters, ScopedTexture* sourceTexture, bool hasImplThread)
+static inline SkBitmap applyFilters(GLRenderer* renderer, const WebKit::WebFilterOperations& filters, ScopedResource* sourceTexture, bool hasImplThread)
 {
     if (filters.isEmpty())
         return SkBitmap();
 
     WebGraphicsContext3D* filterContext = getFilterContext(hasImplThread);
     GrContext* filterGrContext = getFilterGrContext(hasImplThread);
 
     if (!filterContext || !filterGrContext)
         return SkBitmap();
 
     renderer->context()->flush();
 
     ResourceProvider::ScopedWriteLockGL lock(renderer->resourceProvider(), sourceTexture->id());
     SkBitmap source = RenderSurfaceFilters::apply(filters, lock.textureId(), sourceTexture->size(), filterContext, filterGrContext);
     return source;
 }
 
-static SkBitmap applyImageFilter(GLRenderer* renderer, SkImageFilter* filter, ScopedTexture* sourceTexture, bool hasImplThread)
+static SkBitmap applyImageFilter(GLRenderer* renderer, SkImageFilter* filter, ScopedResource* sourceTexture, bool hasImplThread)
 {
     if (!filter)
         return SkBitmap();
 
     WebGraphicsContext3D* context3d = getFilterContext(hasImplThread);
     GrContext* grContext = getFilterGrContext(hasImplThread);
 
     if (!context3d || !grContext)
         return SkBitmap();
 
@@ skipping 31 matching lines @@
     // Draw the source bitmap through the filter to the canvas.
     SkPaint paint;
     paint.setImageFilter(filter);
     canvas.clear(0x0);
     canvas.drawSprite(source, 0, 0, &paint);
     canvas.flush();
     context3d->flush();
     return device.accessBitmap(false);
 }
 
-scoped_ptr<ScopedTexture> GLRenderer::drawBackgroundFilters(
+scoped_ptr<ScopedResource> GLRenderer::drawBackgroundFilters(
     DrawingFrame& frame, const RenderPassDrawQuad* quad,
     const WebKit::WebFilterOperations& filters,
     const WebTransformationMatrix& contentsDeviceTransform,
     const WebTransformationMatrix& contentsDeviceTransformInverse)
 {
     // This method draws a background filter, which applies a filter to any pixels behind the quad and seen through its background.
     // The algorithm works as follows:
     // 1. Compute a bounding box around the pixels that will be visible through the quad.
     // 2. Read the pixels in the bounding box into a buffer R.
     // 3. Apply the background filter to R, so that it is applied in the pixels' coordinate space.
     // 4. Apply the quad's inverse transform to map the pixels in R into the quad's content space. This implicitly
     // clips R by the content bounds of the quad since the destination texture has bounds matching the quad's content.
     // 5. Draw the background texture for the contents using the same transform as used to draw the contents itself. This is done
     // without blending to replace the current background pixels with the new filtered background.
     // 6. Draw the contents of the quad over drop of the new background with blending, as per usual. The filtered background
     // pixels will show through any non-opaque pixels in this draws.
     //
     // Pixel copies in this algorithm occur at steps 2, 3, 4, and 5.
 
     // FIXME: When this algorithm changes, update LayerTreeHost::prioritizeTextures() accordingly.
 
     if (filters.isEmpty())
-        return scoped_ptr<ScopedTexture>();
+        return scoped_ptr<ScopedResource>();
 
     // FIXME: We only allow background filters on an opaque render surface because other surfaces may contain
     // translucent pixels, and the contents behind those translucent pixels wouldn't have the filter applied.
     if (frame.currentRenderPass->hasTransparentBackground())
-        return scoped_ptr<ScopedTexture>();
+        return scoped_ptr<ScopedResource>();
     DCHECK(!frame.currentTexture);
 
     // FIXME: Do a single readback for both the surface and replica and cache the filtered results (once filter textures are not reused).
     gfx::Rect deviceRect = gfx::ToEnclosingRect(MathUtil::mapClippedRect(contentsDeviceTransform, sharedGeometryQuad().BoundingBox()));
 
     int top, right, bottom, left;
     filters.getOutsets(top, right, bottom, left);
     deviceRect.Inset(-left, -top, -right, -bottom);
 
     deviceRect.Intersect(frame.currentRenderPass->outputRect());
 
-    scoped_ptr<ScopedTexture> deviceBackgroundTexture = ScopedTexture::create(m_resourceProvider);
+    scoped_ptr<ScopedResource> deviceBackgroundTexture = ScopedResource::create(m_resourceProvider);
     if (!getFramebufferTexture(deviceBackgroundTexture.get(), deviceRect))
-        return scoped_ptr<ScopedTexture>();
+        return scoped_ptr<ScopedResource>();
 
     SkBitmap filteredDeviceBackground = applyFilters(this, filters, deviceBackgroundTexture.get(), m_client->hasImplThread());
     if (!filteredDeviceBackground.getTexture())
-        return scoped_ptr<ScopedTexture>();
+        return scoped_ptr<ScopedResource>();
 
     GrTexture* texture = reinterpret_cast<GrTexture*>(filteredDeviceBackground.getTexture());
     int filteredDeviceBackgroundTextureId = texture->getTextureHandle();
 
-    scoped_ptr<ScopedTexture> backgroundTexture = ScopedTexture::create(m_resourceProvider);
+    scoped_ptr<ScopedResource> backgroundTexture = ScopedResource::create(m_resourceProvider);
     if (!backgroundTexture->allocate(Renderer::ImplPool, quad->quadRect().size(), GL_RGBA, ResourceProvider::TextureUsageFramebuffer))
-        return scoped_ptr<ScopedTexture>();
+        return scoped_ptr<ScopedResource>();
 
     const RenderPass* targetRenderPass = frame.currentRenderPass;
     bool usingBackgroundTexture = useScopedTexture(frame, backgroundTexture.get(), quad->quadRect());
 
     if (usingBackgroundTexture) {
         // Copy the readback pixels from device to the background texture for the surface.
         WebTransformationMatrix deviceToFramebufferTransform;
         deviceToFramebufferTransform.translate(quad->quadRect().width() / 2.0, quad->quadRect().height() / 2.0);
         deviceToFramebufferTransform.scale3d(quad->quadRect().width(), quad->quadRect().height(), 1);
         deviceToFramebufferTransform.multiply(contentsDeviceTransformInverse);
         copyTextureToFramebuffer(frame, filteredDeviceBackgroundTextureId, deviceRect, deviceToFramebufferTransform);
     }
 
     useRenderPass(frame, targetRenderPass);
 
     if (!usingBackgroundTexture)
-        return scoped_ptr<ScopedTexture>();
+        return scoped_ptr<ScopedResource>();
     return backgroundTexture.Pass();
 }
 
 void GLRenderer::drawRenderPassQuad(DrawingFrame& frame, const RenderPassDrawQuad* quad)
 {
-    CachedTexture* contentsTexture = m_renderPassTextures.get(quad->renderPassId());
+    CachedResource* contentsTexture = m_renderPassTextures.get(quad->renderPassId());
     if (!contentsTexture || !contentsTexture->id())
         return;
 
     const RenderPass* renderPass = frame.renderPassesById->get(quad->renderPassId());
     DCHECK(renderPass);
     if (!renderPass)
         return;
 
     WebTransformationMatrix quadRectMatrix;
     quadRectTransform(&quadRectMatrix, quad->quadTransform(), quad->quadRect());
     WebTransformationMatrix contentsDeviceTransform = (frame.windowMatrix * frame.projectionMatrix * quadRectMatrix).to2dTransform();
 
     // Can only draw surface if device matrix is invertible.
     if (!contentsDeviceTransform.isInvertible())
         return;
 
     WebTransformationMatrix contentsDeviceTransformInverse = contentsDeviceTransform.inverse();
-    scoped_ptr<ScopedTexture> backgroundTexture = drawBackgroundFilters(
+    scoped_ptr<ScopedResource> backgroundTexture = drawBackgroundFilters(
         frame, quad, renderPass->backgroundFilters(),
         contentsDeviceTransform, contentsDeviceTransformInverse);
 
     // FIXME: Cache this value so that we don't have to do it for both the surface and its replica.
     // Apply filters to the contents texture.
     SkBitmap filterBitmap;
     if (renderPass->filter()) {
         filterBitmap = applyImageFilter(this, renderPass->filter(), contentsTexture, m_client->hasImplThread());
     } else {
         filterBitmap = applyFilters(this, renderPass->filters(), contentsTexture, m_client->hasImplThread());
@@ skipping 751 matching lines @@
         // Clean up.
         GLC(m_context, m_context->bindFramebuffer(GL_FRAMEBUFFER, 0));
         GLC(m_context, m_context->bindTexture(GL_TEXTURE_2D, 0));
         GLC(m_context, m_context->deleteFramebuffer(temporaryFBO));
         GLC(m_context, m_context->deleteTexture(temporaryTexture));
     }
 
     enforceMemoryPolicy();
 }
 
-bool GLRenderer::getFramebufferTexture(ScopedTexture* texture, const gfx::Rect& deviceRect)
+bool GLRenderer::getFramebufferTexture(ScopedResource* texture, const gfx::Rect& deviceRect)
 {
     DCHECK(!texture->id() || (texture->size() == deviceRect.size() && texture->format() == GL_RGB));
 
     if (!texture->id() && !texture->allocate(Renderer::ImplPool, deviceRect.size(), GL_RGB, ResourceProvider::TextureUsageAny))
         return false;
 
     ResourceProvider::ScopedWriteLockGL lock(m_resourceProvider, texture->id());
     GLC(m_context, m_context->bindTexture(GL_TEXTURE_2D, lock.textureId()));
     GLC(m_context, m_context->copyTexImage2D(GL_TEXTURE_2D, 0, texture->format(),
                                              deviceRect.x(), deviceRect.y(), deviceRect.width(), deviceRect.height(), 0));
     return true;
 }
 
-bool GLRenderer::useScopedTexture(DrawingFrame& frame, const ScopedTexture* texture, const gfx::Rect& viewportRect)
+bool GLRenderer::useScopedTexture(DrawingFrame& frame, const ScopedResource* texture, const gfx::Rect& viewportRect)
 {
     DCHECK(texture->id());
     frame.currentRenderPass = 0;
     frame.currentTexture = texture;
 
     return bindFramebufferToTexture(frame, texture, viewportRect);
 }
 
 void GLRenderer::bindFramebufferToOutputSurface(DrawingFrame& frame)
 {
     m_currentFramebufferLock.reset();
     GLC(m_context, m_context->bindFramebuffer(GL_FRAMEBUFFER, 0));
 }
 
-bool GLRenderer::bindFramebufferToTexture(DrawingFrame& frame, const ScopedTexture* texture, const gfx::Rect& framebufferRect)
+bool GLRenderer::bindFramebufferToTexture(DrawingFrame& frame, const ScopedResource* texture, const gfx::Rect& framebufferRect)
 {
     DCHECK(texture->id());
 
     GLC(m_context, m_context->bindFramebuffer(GL_FRAMEBUFFER, m_offscreenFramebufferId));
     m_currentFramebufferLock = make_scoped_ptr(new ResourceProvider::ScopedWriteLockGL(m_resourceProvider, texture->id()));
     unsigned textureId = m_currentFramebufferLock->textureId();
     GLC(m_context, m_context->framebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, textureId, 0));
 
     DCHECK(m_context->checkFramebufferStatus(GL_FRAMEBUFFER) == GL_FRAMEBUFFER_COMPLETE);
 
@@ skipping 272 matching lines @@
 
     releaseRenderPassTextures();
 }
 
 bool GLRenderer::isContextLost()
 {
     return (m_context->getGraphicsResetStatusARB() != GL_NO_ERROR);
 }
 
 }  // namespace cc