1 files changed, 130 insertions, 0 deletions
diff --git a/src/egl-state.h b/src/egl-state.h
new file mode 100644
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+++ b/src/egl-state.h
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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_;
+    EGLint bufferType_;
+    // Base config attributes
+    EGLint caveat_;
+    EGLint configID_;
+    // Depth buffer
+    EGLint depthSize_;
+    // 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),
+        bufferType_(EGL_RGB_BUFFER),
+        caveat_(0),
+        configID_(0),
+        depthSize_(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_