blob: 191d343cf2ca3261314a0cdba75bae4879ee0ab2 [file] [log] [blame]
// 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 "ui/ozone/demo/gl_renderer.h"
#include "ui/gl/gl_bindings.h"
#include "ui/gl/gl_context.h"
#include "ui/gl/gl_surface.h"
namespace ui {
GlRenderer::GlRenderer(gfx::AcceleratedWidget widget, const gfx::Size& size)
: RendererBase(widget, size) {
}
GlRenderer::~GlRenderer() {
}
bool GlRenderer::Initialize() {
surface_ = CreateSurface();
if (!surface_.get()) {
LOG(ERROR) << "Failed to create GL surface";
return false;
}
context_ = gfx::GLContext::CreateGLContext(NULL, surface_.get(),
gfx::PreferIntegratedGpu);
if (!context_.get()) {
LOG(ERROR) << "Failed to create GL context";
return false;
}
surface_->Resize(size_);
if (!context_->MakeCurrent(surface_.get())) {
LOG(ERROR) << "Failed to make GL context current";
return false;
}
return true;
}
void GlRenderer::RenderFrame() {
float fraction = NextFraction();
context_->MakeCurrent(surface_.get());
glViewport(0, 0, size_.width(), size_.height());
glClearColor(1 - fraction, fraction, 0.0, 1.0);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
if (!surface_->SwapBuffers())
LOG(FATAL) << "Failed to swap buffers";
}
scoped_refptr<gfx::GLSurface> GlRenderer::CreateSurface() {
return gfx::GLSurface::CreateViewGLSurface(widget_);
}
} // namespace ui