266 lines
8.7 KiB
C
266 lines
8.7 KiB
C
#ifndef __egl_h_
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#define __egl_h_
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/*
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** Copyright 2002-2003 Promoters of the Khronos Group (3Dlabs, ARM Ltd.,
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** ATI Technologies, Inc., Discreet, Ericsson Mobile, Imagination
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** Technologies Group plc, Motorola, Inc., Nokia, Silicon Graphics, Inc.,
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** SK Telecom, and Sun Microsystems).
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**
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** This document is protected by copyright, and contains information
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** proprietary to The Khronos Group. Any copying, adaptation, distribution,
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** public performance, or public display of this document without the
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** express written consent of the copyright holders is strictly prohibited.
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** The receipt or possession of this document does not convey any rights to
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** reproduce, disclose, or distribute its contents, or to manufacture, use,
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** or sell anything that it may describe, in whole or in part.
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*/
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#include <GLES/gl.h>
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#include <GLES/egltypes.h>
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/*
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** Versioning and extensions
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*/
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#define EGL_VERSION_1_0 1
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#define EGL_VERSION_1_1 1
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/*
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** Boolean
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*/
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#define EGL_FALSE 0
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#define EGL_TRUE 1
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/*
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** Errors
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*/
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#define EGL_SUCCESS 0x3000
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#define EGL_NOT_INITIALIZED 0x3001
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#define EGL_BAD_ACCESS 0x3002
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#define EGL_BAD_ALLOC 0x3003
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#define EGL_BAD_ATTRIBUTE 0x3004
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#define EGL_BAD_CONFIG 0x3005
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#define EGL_BAD_CONTEXT 0x3006
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#define EGL_BAD_CURRENT_SURFACE 0x3007
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#define EGL_BAD_DISPLAY 0x3008
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#define EGL_BAD_MATCH 0x3009
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#define EGL_BAD_NATIVE_PIXMAP 0x300A
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#define EGL_BAD_NATIVE_WINDOW 0x300B
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#define EGL_BAD_PARAMETER 0x300C
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#define EGL_BAD_SURFACE 0x300D
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#define EGL_CONTEXT_LOST 0x300E
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/* 0x300F - 0x301F reserved for additional errors. */
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/*
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** Config attributes
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*/
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#define EGL_BUFFER_SIZE 0x3020
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#define EGL_ALPHA_SIZE 0x3021
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#define EGL_BLUE_SIZE 0x3022
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#define EGL_GREEN_SIZE 0x3023
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#define EGL_RED_SIZE 0x3024
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#define EGL_DEPTH_SIZE 0x3025
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#define EGL_STENCIL_SIZE 0x3026
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#define EGL_CONFIG_CAVEAT 0x3027
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#define EGL_CONFIG_ID 0x3028
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#define EGL_LEVEL 0x3029
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#define EGL_MAX_PBUFFER_HEIGHT 0x302A
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#define EGL_MAX_PBUFFER_PIXELS 0x302B
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#define EGL_MAX_PBUFFER_WIDTH 0x302C
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#define EGL_NATIVE_RENDERABLE 0x302D
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#define EGL_NATIVE_VISUAL_ID 0x302E
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#define EGL_NATIVE_VISUAL_TYPE 0x302F
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/*#define EGL_PRESERVED_RESOURCES 0x3030*/
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#define EGL_SAMPLES 0x3031
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#define EGL_SAMPLE_BUFFERS 0x3032
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#define EGL_SURFACE_TYPE 0x3033
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#define EGL_TRANSPARENT_TYPE 0x3034
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#define EGL_TRANSPARENT_BLUE_VALUE 0x3035
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#define EGL_TRANSPARENT_GREEN_VALUE 0x3036
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#define EGL_TRANSPARENT_RED_VALUE 0x3037
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#define EGL_NONE 0x3038 /* Also a config value */
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#define EGL_BIND_TO_TEXTURE_RGB 0x3039
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#define EGL_BIND_TO_TEXTURE_RGBA 0x303A
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#define EGL_MIN_SWAP_INTERVAL 0x303B
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#define EGL_MAX_SWAP_INTERVAL 0x303C
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/*
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** Config values
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*/
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#define EGL_DONT_CARE ((EGLint) -1)
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#define EGL_SLOW_CONFIG 0x3050 /* EGL_CONFIG_CAVEAT value */
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#define EGL_NON_CONFORMANT_CONFIG 0x3051 /* " */
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#define EGL_TRANSPARENT_RGB 0x3052 /* EGL_TRANSPARENT_TYPE value */
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#define EGL_NO_TEXTURE 0x305C /* EGL_TEXTURE_FORMAT/TARGET value */
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#define EGL_TEXTURE_RGB 0x305D /* EGL_TEXTURE_FORMAT value */
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#define EGL_TEXTURE_RGBA 0x305E /* " */
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#define EGL_TEXTURE_2D 0x305F /* EGL_TEXTURE_TARGET value */
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/*
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** Config attribute mask bits
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*/
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#define EGL_PBUFFER_BIT 0x01 /* EGL_SURFACE_TYPE mask bit */
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#define EGL_PIXMAP_BIT 0x02 /* " */
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#define EGL_WINDOW_BIT 0x04 /* " */
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/*
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** String names
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*/
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#define EGL_VENDOR 0x3053 /* eglQueryString target */
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#define EGL_VERSION 0x3054 /* " */
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#define EGL_EXTENSIONS 0x3055 /* " */
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/*
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** Surface attributes
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*/
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#define EGL_HEIGHT 0x3056
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#define EGL_WIDTH 0x3057
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#define EGL_LARGEST_PBUFFER 0x3058
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#define EGL_TEXTURE_FORMAT 0x3080 /* For pbuffers bound as textures */
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#define EGL_TEXTURE_TARGET 0x3081 /* " */
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#define EGL_MIPMAP_TEXTURE 0x3082 /* " */
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#define EGL_MIPMAP_LEVEL 0x3083 /* " */
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/*
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** BindTexImage / ReleaseTexImage buffer target
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*/
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#define EGL_BACK_BUFFER 0x3084
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/*
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** Current surfaces
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*/
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#define EGL_DRAW 0x3059
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#define EGL_READ 0x305A
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/*
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** Engines
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*/
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#define EGL_CORE_NATIVE_ENGINE 0x305B
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/* 0x305C-0x3FFFF reserved for future use */
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/*
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** Functions
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*/
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#ifdef __cplusplus
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extern "C" {
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#endif
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GLAPI EGLint APIENTRY eglGetError (void);
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GLAPI EGLDisplay APIENTRY eglGetDisplay (NativeDisplayType display);
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GLAPI EGLBoolean APIENTRY eglInitialize (EGLDisplay dpy, EGLint *major, EGLint *minor);
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GLAPI EGLBoolean APIENTRY eglTerminate (EGLDisplay dpy);
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GLAPI const char * APIENTRY eglQueryString (EGLDisplay dpy, EGLint name);
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GLAPI void (APIENTRY * eglGetProcAddress (const char *procname))();
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GLAPI EGLBoolean APIENTRY eglGetConfigs (EGLDisplay dpy, EGLConfig *configs, EGLint config_size, EGLint *num_config);
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GLAPI EGLBoolean APIENTRY eglChooseConfig (EGLDisplay dpy, const EGLint *attrib_list, EGLConfig *configs, EGLint config_size, EGLint *num_config);
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GLAPI EGLBoolean APIENTRY eglGetConfigAttrib (EGLDisplay dpy, EGLConfig config, EGLint attribute, EGLint *value);
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GLAPI EGLSurface APIENTRY eglCreateWindowSurface (EGLDisplay dpy, EGLConfig config, NativeWindowType window, const EGLint *attrib_list);
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GLAPI EGLSurface APIENTRY eglCreatePixmapSurface (EGLDisplay dpy, EGLConfig config, NativePixmapType pixmap, const EGLint *attrib_list);
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GLAPI EGLSurface APIENTRY eglCreatePbufferSurface (EGLDisplay dpy, EGLConfig config, const EGLint *attrib_list);
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GLAPI EGLBoolean APIENTRY eglDestroySurface (EGLDisplay dpy, EGLSurface surface);
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GLAPI EGLBoolean APIENTRY eglQuerySurface (EGLDisplay dpy, EGLSurface surface, EGLint attribute, EGLint *value);
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/* EGL 1.1 render-to-texture APIs */
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GLAPI EGLBoolean APIENTRY eglSurfaceAttrib (EGLDisplay dpy, EGLSurface surface, EGLint attribute, EGLint value);
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GLAPI EGLBoolean APIENTRY eglBindTexImage(EGLDisplay dpy, EGLSurface surface, EGLint buffer);
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GLAPI EGLBoolean APIENTRY eglReleaseTexImage(EGLDisplay dpy, EGLSurface surface, EGLint buffer);
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/* EGL 1.1 swap control API */
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GLAPI EGLBoolean APIENTRY eglSwapInterval(EGLDisplay dpy, EGLint interval);
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GLAPI EGLContext APIENTRY eglCreateContext (EGLDisplay dpy, EGLConfig config, EGLContext share_list, const EGLint *attrib_list);
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GLAPI EGLBoolean APIENTRY eglDestroyContext (EGLDisplay dpy, EGLContext ctx);
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GLAPI EGLBoolean APIENTRY eglMakeCurrent (EGLDisplay dpy, EGLSurface draw, EGLSurface read, EGLContext ctx);
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GLAPI EGLContext APIENTRY eglGetCurrentContext (void);
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GLAPI EGLSurface APIENTRY eglGetCurrentSurface (EGLint readdraw);
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GLAPI EGLDisplay APIENTRY eglGetCurrentDisplay (void);
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GLAPI EGLBoolean APIENTRY eglQueryContext (EGLDisplay dpy, EGLContext ctx, EGLint attribute, EGLint *value);
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GLAPI EGLBoolean APIENTRY eglWaitGL (void);
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GLAPI EGLBoolean APIENTRY eglWaitNative (EGLint engine);
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GLAPI EGLBoolean APIENTRY eglSwapBuffers (EGLDisplay dpy, EGLSurface draw);
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GLAPI EGLBoolean APIENTRY eglCopyBuffers (EGLDisplay dpy, EGLSurface surface, NativePixmapType target);
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#ifdef __cplusplus
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}
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#endif
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#endif /* ___egl_h_ */
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/* usage
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// ----------------------------------------------------------------------
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// Initialization
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// ----------------------------------------------------------------------
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HDC hdc = GetDC(0); // the screen or window device context, for example
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EGLDisplay display = eglGetDisplay(hdc);
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EGLint major, minor;
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if (!eglInitialize(display, &major, &minor)) {
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// could not initialize display
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}
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EGLConfig configs[10];
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EGLint matchingConfigs;
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EGLint attribList[] = { 0 }; // extend this
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if (!eglChooseConfig(display, attribList, &configs, 10, &matchingConfigs)) {
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// could not choose config
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}
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if (matchingConfigs < 1) {
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// did not find a suitable configuration
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}
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EGLConfig config = configs[0]; // pick any
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EGLSurface surface = eglCreatePbufferSurface(display, config, attribList);
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// test for error
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EGLContext context = eglCreateContext(display, config, 0, attribList);
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// test for error
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// ----------------------------------------------------------------------
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// Rendering Loop
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// ----------------------------------------------------------------------
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eglMakeCurrent(display, surface, surface, context);
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// actual GL rendering goes here
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eglWait();
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eglSwapBuffers(display, surface);
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// ----------------------------------------------------------------------
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// Cleanup
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// ----------------------------------------------------------------------
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if (!eglDestoyContext(display, context)) {
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// error deallocating context
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}
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if (!eglDestroySurface(display, surface)) {
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// error deallocating surface
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}
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if (!eglTerminate(display)) {
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// error while cleaning up display
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}
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*/
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