16 bpp video stream capture, render and WebGL usage - Realsense R200 & SR300 support.

media/renderers/skcanvas_video_renderer_unittest.cc

 // 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 <stdint.h>
+#include <GLES3/gl3.h>
 
 #include "base/macros.h"
 #include "base/message_loop/message_loop.h"
 #include "gpu/GLES2/gl2extchromium.h"
 #include "gpu/command_buffer/client/gles2_interface_stub.h"
 #include "media/base/timestamp_constants.h"
 #include "media/base/video_frame.h"
 #include "media/base/video_util.h"
 #include "media/renderers/skcanvas_video_renderer.h"
 #include "testing/gtest/include/gtest/gtest.h"
@@ skipping 494 matching lines @@
             GetColorAt(target_canvas(), kWidth * 3 / 8, kHeight * 3 / 6));
 }
 
 namespace {
 class TestGLES2Interface : public gpu::gles2::GLES2InterfaceStub {
  public:
   void GenTextures(GLsizei n, GLuint* textures) override {
     DCHECK_EQ(1, n);
     *textures = 1;
   }
+
+  GLuint CreateProgram() override { return ++program_base_; }
+
+  unsigned program_base_ = 0;
 };
 void MailboxHoldersReleased(const gpu::SyncToken& sync_token) {}
 }  // namespace
 
 // Test that SkCanvasVideoRendererTest::Paint doesn't crash when GrContext is
 // abandoned.
 TEST_F(SkCanvasVideoRendererTest, ContextLost) {
   sk_sp<const GrGLInterface> null_interface(GrGLCreateNullInterface());
   sk_sp<GrContext> gr_context(GrContext::Create(
       kOpenGL_GrBackend,
       reinterpret_cast<GrBackendContext>(null_interface.get())));
   gr_context->abandonContext();
 
   SkCanvas canvas(AllocBitmap(kWidth, kHeight));
 
   TestGLES2Interface gles2;
   Context3D context_3d(&gles2, gr_context.get());
   gfx::Size size(kWidth, kHeight);
   gpu::MailboxHolder holders[VideoFrame::kMaxPlanes] = {gpu::MailboxHolder(
       gpu::Mailbox::Generate(), gpu::SyncToken(), GL_TEXTURE_RECTANGLE_ARB)};
   auto video_frame = VideoFrame::WrapNativeTextures(
       PIXEL_FORMAT_UYVY, holders, base::Bind(MailboxHoldersReleased), size,
       gfx::Rect(size), size, kNoTimestamp);
 
   SkPaint paint;
   paint.setFilterQuality(kLow_SkFilterQuality);
   renderer_.Paint(video_frame, &canvas, kNaturalRect, paint, VIDEO_ROTATION_90,
                   context_3d);
 }
+
+// Test that cached resources are restored when gl context is lost and restored.
+TEST_F(SkCanvasVideoRendererTest, Y16CachedGLResourcesContextRestore) {
+  sk_sp<const GrGLInterface> null_interface(GrGLCreateNullInterface());
+  sk_sp<GrContext> gr_context(GrContext::Create(
+      kOpenGL_GrBackend,
+      reinterpret_cast<GrBackendContext>(null_interface.get())));
+
+  SkCanvas canvas(AllocBitmap(kWidth, kHeight));
+
+  TestGLES2Interface gles2;
+  TestGLES2Interface gl_destination;
+  unsigned texture, texture1, texture2;
+  gl_destination.GenTextures(1, &texture);
+  Context3D context_3d(&gles2, gr_context.get());
+  gfx::Size size(kWidth, kHeight);
+  gpu::MailboxHolder holders[VideoFrame::kMaxPlanes] = {gpu::MailboxHolder(
+      gpu::Mailbox::Generate(), gpu::SyncToken(), GL_TEXTURE_2D)};
+  auto video_frame = VideoFrame::WrapNativeTextures(
+      PIXEL_FORMAT_Y16, holders, base::Bind(MailboxHoldersReleased), size,
+      gfx::Rect(size), size, kNoTimestamp);
+
+  unsigned program_base_before = gles2.program_base_;
+  renderer_.CopyVideoFrameTexturesToGLTexture(
+      context_3d, &gl_destination, video_frame.get(), texture, GL_R32F,
+      GL_FLOAT, true /*premultiply_alpha*/, true /*flip_y*/);
+  // It is expected that the program for RG8 -> R32F conversion is created.
+  EXPECT_EQ(gles2.program_base_ - program_base_before, 1u);
+
+  gl_destination.GenTextures(1, &texture1);
+  program_base_before = gles2.program_base_;
+  renderer_.CopyVideoFrameTexturesToGLTexture(
+      context_3d, &gl_destination, video_frame.get(), texture, GL_R32F,
+      GL_FLOAT, true /*premultiply_alpha*/, true /*flip_y*/);
+  // The program is expected to be cached - no new program created.
+  EXPECT_EQ(gles2.program_base_ - program_base_before, 0u);
+
+  gr_context->abandonContext();
+
+  sk_sp<const GrGLInterface> null_interface_1(GrGLCreateNullInterface());
+  sk_sp<GrContext> gr_context_1(GrContext::Create(
+      kOpenGL_GrBackend,
+      reinterpret_cast<GrBackendContext>(null_interface_1.get())));
+
+  gl_destination.GenTextures(1, &texture2);
+  Context3D context_3d_1(&gles2, gr_context_1.get());
+  program_base_before = gles2.program_base_;
+  renderer_.CopyVideoFrameTexturesToGLTexture(
+      context_3d_1, &gl_destination, video_frame.get(), texture1, GL_R32F,
+      GL_FLOAT, true /*premultiply_alpha*/, true /*flip_y*/);
+  // As the new context is created, the new program is expected.
+  EXPECT_EQ(gles2.program_base_ - program_base_before, 1u);
+}
+
 }  // namespace media