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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 "ui/gl/gl_implementation.h"
#include "ui/gl/test/gl_surface_test_support.h"
#if defined(USE_OZONE)
#include "base/message_loop/message_loop.h"
#endif
namespace gl {
// 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<gfx::GLImplementation> allowed_impls;
GetAllowedGLImplementations(&allowed_impls);
DCHECK(!allowed_impls.empty());
gfx::GLImplementation impl = allowed_impls[0];
gfx::GLSurfaceTestSupport::InitializeOneOffImplementation(impl, true);
}
// static
void GLImageTestSupport::CleanupGL() {
gfx::ClearGLBindings();
}
// static
void GLImageTestSupport::SetBufferDataToColor(int width,
int height,
int stride,
int plane,
gfx::BufferFormat format,
const uint8_t color[4],
uint8_t* data) {
switch (format) {
case gfx::BufferFormat::RGBX_8888:
DCHECK_EQ(0, plane);
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] = 0xaa; // unused
}
}
return;
case gfx::BufferFormat::RGBA_8888:
DCHECK_EQ(0, plane);
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 gfx::BufferFormat::BGRX_8888:
DCHECK_EQ(0, plane);
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] = 0xaa; // unused
}
}
return;
case gfx::BufferFormat::BGRA_8888:
DCHECK_EQ(0, plane);
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 gfx::BufferFormat::YUV_420_BIPLANAR: {
DCHECK_LT(plane, 2);
DCHECK_EQ(0, height % 2);
DCHECK_EQ(0, width % 2);
// These values are used in the transformation from YUV to RGB color
// values. They are taken from the following webpage:
// http://www.fourcc.org/fccyvrgb.php
uint8_t yuv[] = {
(0.257 * color[0]) + (0.504 * color[1]) + (0.098 * color[2]) + 16,
-(0.148 * color[0]) - (0.291 * color[1]) + (0.439 * color[2]) + 128,
(0.439 * color[0]) - (0.368 * color[1]) - (0.071 * color[2]) + 128};
if (plane == 0) {
for (int y = 0; y < height; ++y) {
for (int x = 0; x < width; ++x) {
data[stride * y + x] = yuv[0];
}
}
} else {
for (int y = 0; y < height / 2; ++y) {
for (int x = 0; x < width / 2; ++x) {
data[stride * y + x * 2] = yuv[1];
data[stride * y + x * 2 + 1] = yuv[2];
}
}
}
return;
}
case gfx::BufferFormat::ATC:
case gfx::BufferFormat::ATCIA:
case gfx::BufferFormat::DXT1:
case gfx::BufferFormat::DXT5:
case gfx::BufferFormat::ETC1:
case gfx::BufferFormat::R_8:
case gfx::BufferFormat::RGBA_4444:
case gfx::BufferFormat::UYVY_422:
case gfx::BufferFormat::YUV_420:
NOTREACHED();
return;
}
NOTREACHED();
}
} // namespace gl
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