Test gfx::GpuMemoryBuffer::BGRA_8888 GpuMemoryBuffer lifecycle.

gpu/command_buffer/tests/gl_gpu_memory_buffer_unittest.cc

 // Copyright 2014 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 <GLES2/gl2.h>
 #include <GLES2/gl2chromium.h>
 #include <GLES2/gl2ext.h>
 #include <GLES2/gl2extchromium.h>
 
 #include "base/bind.h"
@@ skipping 15 matching lines @@
 using testing::Invoke;
 using testing::Return;
 using testing::SetArgPointee;
 using testing::StrictMock;
 
 namespace gpu {
 namespace gles2 {
 
 static const int kImageWidth = 32;
 static const int kImageHeight = 32;
-static const int kImageBytesPerPixel = 4;
 
-class GpuMemoryBufferTest : public testing::Test {
+class GpuMemoryBufferTest
+    : public testing::TestWithParam<gfx::GpuMemoryBuffer::Format> {
  protected:
   void SetUp() override {
     gl_.Initialize(GLManager::Options());
     gl_.MakeCurrent();
 
     glGenTextures(2, texture_ids_);
     glBindTexture(GL_TEXTURE_2D, texture_ids_[1]);
 
     glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
     glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
@@ skipping 14 matching lines @@
     glDeleteFramebuffers(1, &framebuffer_id_);
 
     gl_.Destroy();
   }
 
   GLManager gl_;
   GLuint texture_ids_[2];
   GLuint framebuffer_id_;
 };
 
+namespace {
+
+std::vector<uint8> GetTexturePixel(const gfx::GpuMemoryBuffer::Format format) {
+  std::vector<uint8> pixel;
+  switch (format) {
+    case gfx::GpuMemoryBuffer::RGBA_8888:
+      pixel.push_back(255u);
+      pixel.push_back(0u);
+      pixel.push_back(0u);
+      pixel.push_back(255u);
+      return pixel;
+    case gfx::GpuMemoryBuffer::BGRA_8888:
+      pixel.push_back(0u);
+      pixel.push_back(0u);
+      pixel.push_back(255u);
+      pixel.push_back(255u);
+      return pixel;
+    case gfx::GpuMemoryBuffer::ATC:
+    case gfx::GpuMemoryBuffer::ATCIA:
+    case gfx::GpuMemoryBuffer::DXT1:
+    case gfx::GpuMemoryBuffer::DXT5:
+    case gfx::GpuMemoryBuffer::ETC1:
+    case gfx::GpuMemoryBuffer::RGBX_8888:
+      NOTREACHED();
+      return std::vector<uint8>();
+  }
+
+  NOTREACHED();
+  return std::vector<uint8>();
+}
+
+std::vector<uint8> GetFramebufferPixel(
+    const gfx::GpuMemoryBuffer::Format format) {
+  std::vector<uint8> pixel;
+  switch (format) {
+    case gfx::GpuMemoryBuffer::RGBA_8888:
+    case gfx::GpuMemoryBuffer::BGRA_8888:
+      pixel.push_back(255u);
+      pixel.push_back(0u);
+      pixel.push_back(0u);
+      pixel.push_back(255u);
+      return pixel;
+    case gfx::GpuMemoryBuffer::ATC:
+    case gfx::GpuMemoryBuffer::ATCIA:
+    case gfx::GpuMemoryBuffer::DXT1:
+    case gfx::GpuMemoryBuffer::DXT5:
+    case gfx::GpuMemoryBuffer::ETC1:
+    case gfx::GpuMemoryBuffer::RGBX_8888:
+      NOTREACHED();
+      return std::vector<uint8>();
+  }
+
+  NOTREACHED();
+  return std::vector<uint8>();
+}
+
+GLenum TextureFormat(gfx::GpuMemoryBuffer::Format format) {
+  switch (format) {
+    case gfx::GpuMemoryBuffer::RGBA_8888:
+      return GL_RGBA;
+    case gfx::GpuMemoryBuffer::BGRA_8888:
+      return GL_BGRA_EXT;
+    case gfx::GpuMemoryBuffer::ATC:
+    case gfx::GpuMemoryBuffer::ATCIA:
+    case gfx::GpuMemoryBuffer::DXT1:
+    case gfx::GpuMemoryBuffer::DXT5:
+    case gfx::GpuMemoryBuffer::ETC1:
+    case gfx::GpuMemoryBuffer::RGBX_8888:
+      NOTREACHED();
+      return 0;
+  }
+
+  NOTREACHED();
+  return 0;
+}
+
+}  // namespace
+
 // An end to end test that tests the whole GpuMemoryBuffer lifecycle.
-TEST_F(GpuMemoryBufferTest, Lifecycle) {
-  uint8 pixels[1 * 4] = { 255u, 0u, 0u, 255u };
-
+TEST_P(GpuMemoryBufferTest, Lifecycle) {
   scoped_ptr<gfx::GpuMemoryBuffer> buffer(gl_.CreateGpuMemoryBuffer(
-      gfx::Size(kImageWidth, kImageHeight), gfx::GpuMemoryBuffer::RGBA_8888));
+      gfx::Size(kImageWidth, kImageHeight), GetParam()));
 
   // Map buffer for writing.
   void* data;
   bool rv = buffer->Map(&data);
   DCHECK(rv);
 
   uint8* mapped_buffer = static_cast<uint8*>(data);
   ASSERT_TRUE(mapped_buffer != NULL);
 
   // Assign a value to each pixel.
-  int stride = kImageWidth * kImageBytesPerPixel;
-  for (int x = 0; x < kImageWidth; ++x) {
-    for (int y = 0; y < kImageHeight; ++y) {
-      mapped_buffer[y * stride + x * kImageBytesPerPixel + 0] = pixels[0];
-      mapped_buffer[y * stride + x * kImageBytesPerPixel + 1] = pixels[1];
-      mapped_buffer[y * stride + x * kImageBytesPerPixel + 2] = pixels[2];
-      mapped_buffer[y * stride + x * kImageBytesPerPixel + 3] = pixels[3];
+  uint32 stride = 0;
+  buffer->GetStride(&stride);
+  ASSERT_NE(stride, 0u);
+  std::vector<uint8> pixel = GetTexturePixel(GetParam());
+  for (int y = 0; y < kImageHeight; ++y) {
+    for (int x = 0; x < kImageWidth; ++x) {
+      std::copy(pixel.begin(), pixel.end(),
+                mapped_buffer + y * stride + x * pixel.size());
     }
   }
 
   // Unmap the buffer.
   buffer->Unmap();
 
   // Create the image. This should add the image ID to the ImageManager.
   GLuint image_id = glCreateImageCHROMIUM(
       buffer->AsClientBuffer(), kImageWidth, kImageHeight, GL_RGBA);
   EXPECT_NE(0u, image_id);
   EXPECT_TRUE(gl_.decoder()->GetImageManager()->LookupImage(image_id) != NULL);
 
   // Bind the texture and the image.
   glBindTexture(GL_TEXTURE_2D, texture_ids_[0]);
   glBindTexImage2DCHROMIUM(GL_TEXTURE_2D, image_id);
 
   // Copy texture so we can verify result using CheckPixels.
-  glCopyTextureCHROMIUM(GL_TEXTURE_2D,
-                        texture_ids_[0],
-                        texture_ids_[1],
-                        GL_RGBA,
-                        GL_UNSIGNED_BYTE);
+  glCopyTextureCHROMIUM(GL_TEXTURE_2D, texture_ids_[0], texture_ids_[1],
+                        TextureFormat(GetParam()), GL_UNSIGNED_BYTE);
   EXPECT_TRUE(glGetError() == GL_NO_ERROR);
 
   // Check if pixels match the values that were assigned to the mapped buffer.
-  GLTestHelper::CheckPixels(0, 0, kImageWidth, kImageHeight, 0, pixels);
+  GLTestHelper::CheckPixels(0, 0, kImageWidth, kImageHeight, 0,
+                            &GetFramebufferPixel(GetParam()).front());
   EXPECT_TRUE(GL_NO_ERROR == glGetError());
 
   // Release the image.
   glReleaseTexImage2DCHROMIUM(GL_TEXTURE_2D, image_id);
 
   // Destroy the image.
   glDestroyImageCHROMIUM(image_id);
 }
 
+INSTANTIATE_TEST_CASE_P(GpuMemoryBufferTests,
+                        GpuMemoryBufferTest,
+                        ::testing::Values(gfx::GpuMemoryBuffer::RGBA_8888,
+                                          gfx::GpuMemoryBuffer::BGRA_8888));
+
 }  // namespace gles2
 }  // namespace gpu