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//
// Copyright © 2012 Linaro Limited
//
// This file is part of the glmark2 OpenGL (ES) 2.0 benchmark.
//
// glmark2 is free software: you can redistribute it and/or modify it under the
// terms of the GNU General Public License as published by the Free Software
// Foundation, either version 3 of the License, or (at your option) any later
// version.
//
// glmark2 is distributed in the hope that it will be useful, but WITHOUT ANY
// WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
// FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
// details.
//
// You should have received a copy of the GNU General Public License along with
// glmark2. If not, see <http://www.gnu.org/licenses/>.
//
// Authors:
// Jesse Barker
//
#ifndef EGL_STATE_H_
#define EGL_STATE_H_
#include <vector>
#include <EGL/egl.h>
#include "gl-visual-config.h"
class EglConfig
{
EGLConfig handle_;
// Color buffer attributes.
EGLint bufferSize_;
EGLint redSize_;
EGLint greenSize_;
EGLint blueSize_;
EGLint luminanceSize_;
EGLint alphaSize_;
EGLint alphaMaskSize_;
bool bindTexRGB_;
bool bindTexRGBA_;
EGLint bufferType_;
// Base config attributes
EGLint caveat_;
EGLint configID_;
EGLint conformant_;
// Depth buffer
EGLint depthSize_;
// Framebuffer level
EGLint level_;
// Pbuffers
EGLint pbufferWidth_;
EGLint pbufferHeight_;
EGLint pbufferPixels_;
// Swap interval
EGLint minSwapInterval_;
EGLint maxSwapInterval_;
// Native window system attributes.
EGLint nativeID_;
EGLint nativeType_;
bool nativeRenderable_;
// Multisample support
EGLint sampleBuffers_;
EGLint samples_;
// Stencil buffer
EGLint stencilSize_;
EGLint surfaceType_;
// Transparency
EGLint xparentType_; // Should be RGB or NONE
EGLint xparentRedValue_;
EGLint xparentGreenValue_;
EGLint xparentBlueValue_;
public:
EglConfig() :
handle_(0),
bufferSize_(0),
redSize_(0),
greenSize_(0),
blueSize_(0),
luminanceSize_(0),
alphaSize_(0),
alphaMaskSize_(0),
bindTexRGB_(false),
bindTexRGBA_(false),
bufferType_(EGL_RGB_BUFFER),
caveat_(0),
configID_(0),
conformant_(0),
depthSize_(0),
level_(0),
pbufferWidth_(0),
pbufferHeight_(0),
pbufferPixels_(0),
minSwapInterval_(0),
maxSwapInterval_(0),
nativeID_(0),
nativeType_(0),
nativeRenderable_(false),
sampleBuffers_(0),
samples_(0),
stencilSize_(0),
surfaceType_(0),
xparentType_(0),
xparentRedValue_(0),
xparentGreenValue_(0),
xparentBlueValue_(0) {}
EglConfig(EGLDisplay dpy, EGLConfig config);
~EglConfig() {}
void print() const;
static void print_header();
bool isWindowConfig() const { return surfaceType_ & EGL_WINDOW_BIT; }
EGLint configID() const { return configID_; }
};
class EGLState
{
EGLNativeDisplayType native_display_;
EGLNativeWindowType native_window_;
EGLDisplay egl_display_;
EGLConfig egl_config_;
EGLContext egl_context_;
EGLSurface egl_surface_;
GLVisualConfig visual_config_;
EglConfig best_config_;
bool gotValidDisplay();
bool gotValidConfig();
bool gotValidSurface();
bool gotValidContext();
void get_glvisualconfig(EGLConfig config, GLVisualConfig& visual_config);
EGLConfig select_best_config(std::vector<EGLConfig>& configs);
public:
EGLState() :
native_display_(0),
native_window_(0),
egl_display_(0),
egl_config_(0),
egl_context_(0),
egl_surface_(0) {}
~EGLState() {}
bool valid();
bool init_display(EGLNativeDisplayType native_display, GLVisualConfig& config_pref);
bool init_surface(EGLNativeWindowType native_window);
bool reset();
void swap();
// Performs a config search, returning a native visual ID on success
bool gotNativeConfig(int& vid);
void getVisualConfig(GLVisualConfig& vc) { vc = visual_config_; }
};
#endif // EGL_STATE_H_
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