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// Copyright 2015 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 "ui/gl/test/gl_image_test_support.h"
#include <vector>
#include "third_party/skia/include/core/SkTypes.h"
#include "ui/gl/gl_context.h"
#include "ui/gl/gl_implementation.h"
#include "ui/gl/gl_version_info.h"
#include "ui/gl/test/gl_surface_test_support.h"
#if defined(USE_OZONE)
#include "base/message_loop/message_loop.h"
#endif
namespace gfx {
// static
void GLImageTestSupport::InitializeGL() {
#if defined(USE_OZONE)
// On Ozone, the backend initializes the event system using a UI thread.
base::MessageLoopForUI main_loop;
#endif
std::vector<GLImplementation> allowed_impls;
GetAllowedGLImplementations(&allowed_impls);
DCHECK(!allowed_impls.empty());
GLImplementation impl = allowed_impls[0];
GLSurfaceTestSupport::InitializeOneOffImplementation(impl, true);
}
// static
void GLImageTestSupport::CleanupGL() {
ClearGLBindings();
}
// static
GLenum GLImageTestSupport::GetPreferredInternalFormat() {
bool has_texture_format_bgra8888 =
GLContext::GetCurrent()->HasExtension(
"GL_APPLE_texture_format_BGRA8888") ||
GLContext::GetCurrent()->HasExtension("GL_EXT_texture_format_BGRA8888") ||
!GLContext::GetCurrent()->GetVersionInfo()->is_es;
return (!SK_B32_SHIFT && has_texture_format_bgra8888) ? GL_BGRA_EXT : GL_RGBA;
}
// static
BufferFormat GLImageTestSupport::GetPreferredBufferFormat() {
return GetPreferredInternalFormat() == GL_BGRA_EXT ? BufferFormat::BGRA_8888
: BufferFormat::RGBA_8888;
}
// static
void GLImageTestSupport::SetBufferDataToColor(int width,
int height,
int stride,
BufferFormat format,
const uint8_t color[4],
uint8_t* data) {
switch (format) {
case BufferFormat::RGBA_8888:
for (int y = 0; y < height; ++y) {
for (int x = 0; x < width; ++x) {
data[y * stride + x * 4 + 0] = color[0];
data[y * stride + x * 4 + 1] = color[1];
data[y * stride + x * 4 + 2] = color[2];
data[y * stride + x * 4 + 3] = color[3];
}
}
return;
case BufferFormat::BGRA_8888:
for (int y = 0; y < height; ++y) {
for (int x = 0; x < width; ++x) {
data[y * stride + x * 4 + 0] = color[2];
data[y * stride + x * 4 + 1] = color[1];
data[y * stride + x * 4 + 2] = color[0];
data[y * stride + x * 4 + 3] = color[3];
}
}
return;
case BufferFormat::ATC:
case BufferFormat::ATCIA:
case BufferFormat::DXT1:
case BufferFormat::DXT5:
case BufferFormat::ETC1:
case BufferFormat::R_8:
case BufferFormat::RGBA_4444:
case BufferFormat::BGRX_8888:
case BufferFormat::UYVY_422:
case BufferFormat::YUV_420_BIPLANAR:
case BufferFormat::YUV_420:
NOTREACHED();
return;
}
NOTREACHED();
}
} // namespace gfx
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