Initial import

[glmemperf] / util.h

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+/**
+ * OpenGL ES 2.0 memory performance estimator
+ * Copyright (C) 2009 Nokia
+ *
+ * This program 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 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * \author Sami Kyöstilä <sami.kyostila@nokia.com>
+ *
+ * EGL and OpenGL ES utility functions
+ */
+#ifndef UTIL_H
+#define UTIL_H
+
+#include <string>
+#include <GLES2/gl2.h>
+#include <EGL/egl.h>
+#include <assert.h>
+
+/**
+ *  Verify that GL commands up to this point have not produced any errors.
+ */
+#define ASSERT_GL() \
+    do \
+    { \
+        GLint err = glGetError(); \
+        if (err) \
+        { \
+            printf("GL error 0x%x (%d) at %s:%d\n", err, err, __FILE__, __LINE__); \
+            assert(!err); \
+        } \
+    } while (0)
+
+/**
+ *  Verify that EGL commands up to this point have not produced any errors.
+ */
+#define ASSERT_EGL() \
+    do \
+    { \
+        EGLint err = eglGetError(); \
+        if (err != EGL_SUCCESS) \
+        { \
+            printf("EGL error 0x%x (%d) at %s:%d\n", err, err, __FILE__, __LINE__); \
+            assert(!err); \
+        } \
+    } while (0)
+
+/**
+ *  EGL context objects available to all tests
+ */
+struct Context
+{
+    EGLNativeDisplayType nativeDisplay;
+    EGLConfig config;
+    EGLNativeWindowType win;
+    EGLDisplay dpy;
+    EGLContext context;
+    EGLSurface surface;
+};
+
+extern struct Context ctx;
+
+/**
+ *  Indicate that a frame is complete
+ */
+void swapBuffers();
+
+/**
+ *  Load a texture from a binary file
+ *
+ *  @param target               Texture target (usually GL_TEXTURE_2D)
+ *  @param level                Mipmap level
+ *  @param internalFormat       Internal texture format
+ *  @param width                Texture width in pixels
+ *  @param height               Texture height in pixels
+ *  @param type                 Data type
+ *  @param fileName             File containing the texture data
+ *
+ *  @returns true on success, false on failure
+ */
+bool loadRawTexture(GLenum target, int level, GLenum internalFormat, int width,
+                    int height, GLenum format, GLenum type, const std::string& fileName);
+
+/**
+ *  Load a compressed texture from a binary file
+ *
+ *  @param target               Texture target (usually GL_TEXTURE_2D)
+ *  @param internalFormat       Internal texture format
+ *  @param width                Texture width in pixels
+ *  @param height               Texture height in pixels
+ *  @param fileName             File containing the texture data
+ *
+ *  @returns true on success, false on failure
+ */
+bool loadCompressedTexture(GLenum target, int level, GLenum internalFormat, int width,
+                           int height, const std::string& fileName);
+
+/**
+ *  Check whether an EGL extension is supported
+ *
+ *  @param name                 Extension name
+ *
+ *  @returns true if extension is supported
+ */
+bool isEGLExtensionSupported(const std::string& name);
+
+/**
+ *  Check whether an OpenGL ES extension is supported
+ *
+ *  @param name                 Extension name
+ *
+ *  @returns true if extension is supported
+ */
+bool isGLExtensionSupported(const std::string& name);
+
+/**
+ *  Compile a vertex and fragment shader and create a new program from the
+ *  result
+ *
+ *  @param vertSrc              Vertex program source
+ *  @param fragSrc              Fragment program source
+ *
+ *  @returns new program handle
+ */
+GLint createProgram(const std::string& vertSrc, const std::string& fragSrc);
+
+/**
+ *  Describe a texture format and type combination
+ *
+ *  @param format               Texture format
+ *  @param type                 Texture type
+ */
+std::string textureFormatName(GLenum format, GLenum type);
+
+/**
+ *  Print EGL config attributes on the terminal
+ *
+ *  @param dpy                  EGL display
+ *  @param config               EGL config
+ */
+void dumpConfig(EGLDisplay dpy, EGLConfig config);
+
+#endif // UTIL_H