/*
** Copyright (c) 2007-2009 The Khronos Group Inc.
**
** Permission is hereby granted, free of charge, to any person obtaining a
** copy of this software and/or associated documentation files (the
** "Materials"), to deal in the Materials without restriction, including
** without limitation the rights to use, copy, modify, merge, publish,
** distribute, sublicense, and/or sell copies of the Materials, and to
** permit persons to whom the Materials are furnished to do so, subject to
** the following conditions:
**
** The above copyright notice and this permission notice shall be included
** in all copies or substantial portions of the Materials.
**
** THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
** EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
** MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
** IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
** CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
** TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
** MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS.
*/

#ifndef __egl_h_
#define __egl_h_

/* All platform-dependent types and macro boilerplate (such as EGLAPI
 * and EGLAPIENTRY) should go in eglplatform.h.
 */
#include <EGL/eglplatform.h>

#ifdef __cplusplus
extern "C" {
#endif

/* EGL Types */
/* EGLint is defined in eglplatform.h */
typedef unsigned int EGLBoolean;
typedef unsigned int EGLenum;
typedef void *EGLConfig;
typedef void *EGLContext;
typedef void *EGLDisplay;
typedef void *EGLSurface;
typedef void *EGLClientBuffer;

/* EGL Versioning */
#define EGL_VERSION_1_0         1
#define EGL_VERSION_1_1         1
#define EGL_VERSION_1_2         1
#define EGL_VERSION_1_3         1
#define EGL_VERSION_1_4         1

/* EGL Enumerants. Bitmasks and other exceptional cases aside, most
 * enums are assigned unique values starting at 0x3000.
 */

/* EGL aliases */
#define EGL_FALSE           0
#define EGL_TRUE            1

/* Out-of-band handle values */
#define EGL_DEFAULT_DISPLAY     ((EGLNativeDisplayType)0)
#define EGL_NO_CONTEXT          ((EGLContext)0)
#define EGL_NO_DISPLAY          ((EGLDisplay)0)
#define EGL_NO_SURFACE          ((EGLSurface)0)

/* Out-of-band attribute value */
#define EGL_DONT_CARE           ((EGLint)-1)

/* Errors / GetError return values */
#define EGL_SUCCESS         0x3000
#define EGL_NOT_INITIALIZED     0x3001
#define EGL_BAD_ACCESS          0x3002
#define EGL_BAD_ALLOC           0x3003
#define EGL_BAD_ATTRIBUTE       0x3004
#define EGL_BAD_CONFIG          0x3005
#define EGL_BAD_CONTEXT         0x3006
#define EGL_BAD_CURRENT_SURFACE     0x3007
#define EGL_BAD_DISPLAY         0x3008
#define EGL_BAD_MATCH           0x3009
#define EGL_BAD_NATIVE_PIXMAP       0x300A
#define EGL_BAD_NATIVE_WINDOW       0x300B
#define EGL_BAD_PARAMETER       0x300C
#define EGL_BAD_SURFACE         0x300D
#define EGL_CONTEXT_LOST        0x300E  /* EGL 1.1 - IMG_power_management */

/* Reserved 0x300F-0x301F for additional errors */

/* Config attributes */
#define EGL_BUFFER_SIZE         0x3020
#define EGL_ALPHA_SIZE          0x3021
#define EGL_BLUE_SIZE           0x3022
#define EGL_GREEN_SIZE          0x3023
#define EGL_RED_SIZE            0x3024
#define EGL_DEPTH_SIZE          0x3025
#define EGL_STENCIL_SIZE        0x3026
#define EGL_CONFIG_CAVEAT       0x3027
#define EGL_CONFIG_ID           0x3028
#define EGL_LEVEL           0x3029
#define EGL_MAX_PBUFFER_HEIGHT      0x302A
#define EGL_MAX_PBUFFER_PIXELS      0x302B
#define EGL_MAX_PBUFFER_WIDTH       0x302C
#define EGL_NATIVE_RENDERABLE       0x302D
#define EGL_NATIVE_VISUAL_ID        0x302E
#define EGL_NATIVE_VISUAL_TYPE      0x302F
#define EGL_PRESERVED_RESOURCES     0x3030
#define EGL_SAMPLES         0x3031
#define EGL_SAMPLE_BUFFERS      0x3032
#define EGL_SURFACE_TYPE        0x3033
#define EGL_TRANSPARENT_TYPE        0x3034
#define EGL_TRANSPARENT_BLUE_VALUE  0x3035
#define EGL_TRANSPARENT_GREEN_VALUE 0x3036
#define EGL_TRANSPARENT_RED_VALUE   0x3037
#define EGL_NONE            0x3038  /* Attrib list terminator */
#define EGL_BIND_TO_TEXTURE_RGB     0x3039
#define EGL_BIND_TO_TEXTURE_RGBA    0x303A
#define EGL_MIN_SWAP_INTERVAL       0x303B
#define EGL_MAX_SWAP_INTERVAL       0x303C
#define EGL_LUMINANCE_SIZE      0x303D
#define EGL_ALPHA_MASK_SIZE     0x303E
#define EGL_COLOR_BUFFER_TYPE       0x303F
#define EGL_RENDERABLE_TYPE     0x3040
#define EGL_MATCH_NATIVE_PIXMAP     0x3041  /* Pseudo-attribute (not queryable) */
#define EGL_CONFORMANT          0x3042

/* Reserved 0x3041-0x304F for additional config attributes */

/* Config attribute values */
#define EGL_SLOW_CONFIG         0x3050  /* EGL_CONFIG_CAVEAT value */
#define EGL_NON_CONFORMANT_CONFIG   0x3051  /* EGL_CONFIG_CAVEAT value */
#define EGL_TRANSPARENT_RGB     0x3052  /* EGL_TRANSPARENT_TYPE value */
#define EGL_RGB_BUFFER          0x308E  /* EGL_COLOR_BUFFER_TYPE value */
#define EGL_LUMINANCE_BUFFER        0x308F  /* EGL_COLOR_BUFFER_TYPE value */

/* More config attribute values, for EGL_TEXTURE_FORMAT */
#define EGL_NO_TEXTURE          0x305C
#define EGL_TEXTURE_RGB         0x305D
#define EGL_TEXTURE_RGBA        0x305E
#define EGL_TEXTURE_2D          0x305F

/* Config attribute mask bits */
#define EGL_PBUFFER_BIT         0x0001  /* EGL_SURFACE_TYPE mask bits */
#define EGL_PIXMAP_BIT          0x0002  /* EGL_SURFACE_TYPE mask bits */
#define EGL_WINDOW_BIT          0x0004  /* EGL_SURFACE_TYPE mask bits */
#define EGL_VG_COLORSPACE_LINEAR_BIT    0x0020  /* EGL_SURFACE_TYPE mask bits */
#define EGL_VG_ALPHA_FORMAT_PRE_BIT 0x0040  /* EGL_SURFACE_TYPE mask bits */
#define EGL_MULTISAMPLE_RESOLVE_BOX_BIT 0x0200  /* EGL_SURFACE_TYPE mask bits */
#define EGL_SWAP_BEHAVIOR_PRESERVED_BIT 0x0400  /* EGL_SURFACE_TYPE mask bits */

#define EGL_OPENGL_ES_BIT       0x0001  /* EGL_RENDERABLE_TYPE mask bits */
#define EGL_OPENVG_BIT          0x0002  /* EGL_RENDERABLE_TYPE mask bits */
#define EGL_OPENGL_ES2_BIT      0x0004  /* EGL_RENDERABLE_TYPE mask bits */
#define EGL_OPENGL_BIT          0x0008  /* EGL_RENDERABLE_TYPE mask bits */

/* QueryString targets */
#define EGL_VENDOR          0x3053
#define EGL_VERSION         0x3054
#define EGL_EXTENSIONS          0x3055
#define EGL_CLIENT_APIS         0x308D

/* QuerySurface / SurfaceAttrib / CreatePbufferSurface targets */
#define EGL_HEIGHT          0x3056
#define EGL_WIDTH           0x3057
#define EGL_LARGEST_PBUFFER     0x3058
#define EGL_TEXTURE_FORMAT      0x3080
#define EGL_TEXTURE_TARGET      0x3081
#define EGL_MIPMAP_TEXTURE      0x3082
#define EGL_MIPMAP_LEVEL        0x3083
#define EGL_RENDER_BUFFER       0x3086
#define EGL_VG_COLORSPACE       0x3087
#define EGL_VG_ALPHA_FORMAT     0x3088
#define EGL_HORIZONTAL_RESOLUTION   0x3090
#define EGL_VERTICAL_RESOLUTION     0x3091
#define EGL_PIXEL_ASPECT_RATIO      0x3092
#define EGL_SWAP_BEHAVIOR       0x3093
#define EGL_MULTISAMPLE_RESOLVE     0x3099

/* EGL_RENDER_BUFFER values / BindTexImage / ReleaseTexImage buffer targets */
#define EGL_BACK_BUFFER         0x3084
#define EGL_SINGLE_BUFFER       0x3085

/* OpenVG color spaces */
#define EGL_VG_COLORSPACE_sRGB      0x3089  /* EGL_VG_COLORSPACE value */
#define EGL_VG_COLORSPACE_LINEAR    0x308A  /* EGL_VG_COLORSPACE value */

/* OpenVG alpha formats */
#define EGL_VG_ALPHA_FORMAT_NONPRE  0x308B  /* EGL_ALPHA_FORMAT value */
#define EGL_VG_ALPHA_FORMAT_PRE     0x308C  /* EGL_ALPHA_FORMAT value */

/* Constant scale factor by which fractional display resolutions &
 * aspect ratio are scaled when queried as integer values.
 */
#define EGL_DISPLAY_SCALING     10000

/* Unknown display resolution/aspect ratio */
#define EGL_UNKNOWN         ((EGLint)-1)

/* Back buffer swap behaviors */
#define EGL_BUFFER_PRESERVED        0x3094  /* EGL_SWAP_BEHAVIOR value */
#define EGL_BUFFER_DESTROYED        0x3095  /* EGL_SWAP_BEHAVIOR value */

/* CreatePbufferFromClientBuffer buffer types */
#define EGL_OPENVG_IMAGE        0x3096

/* QueryContext targets */
#define EGL_CONTEXT_CLIENT_TYPE     0x3097

/* CreateContext attributes */
#define EGL_CONTEXT_CLIENT_VERSION  0x3098

/* Multisample resolution behaviors */
#define EGL_MULTISAMPLE_RESOLVE_DEFAULT 0x309A  /* EGL_MULTISAMPLE_RESOLVE value */
#define EGL_MULTISAMPLE_RESOLVE_BOX 0x309B  /* EGL_MULTISAMPLE_RESOLVE value */

/* BindAPI/QueryAPI targets */
#define EGL_OPENGL_ES_API       0x30A0
#define EGL_OPENVG_API          0x30A1
#define EGL_OPENGL_API          0x30A2

/* GetCurrentSurface targets */
#define EGL_DRAW            0x3059
#define EGL_READ            0x305A

/* WaitNative engines */
#define EGL_CORE_NATIVE_ENGINE      0x305B

/* EGL 1.2 tokens renamed for consistency in EGL 1.3 */
#define EGL_COLORSPACE          EGL_VG_COLORSPACE
#define EGL_ALPHA_FORMAT        EGL_VG_ALPHA_FORMAT
#define EGL_COLORSPACE_sRGB     EGL_VG_COLORSPACE_sRGB
#define EGL_COLORSPACE_LINEAR       EGL_VG_COLORSPACE_LINEAR
#define EGL_ALPHA_FORMAT_NONPRE     EGL_VG_ALPHA_FORMAT_NONPRE
#define EGL_ALPHA_FORMAT_PRE        EGL_VG_ALPHA_FORMAT_PRE

/* EGL extensions must request enum blocks from the Khronos
 * API Registrar, who maintains the enumerant registry. Submit
 * a bug in Khronos Bugzilla against task "Registry".
 */



/* EGL Functions */

EGLAPI EGLint EGLAPIENTRY eglGetError(void);

EGLAPI EGLDisplay EGLAPIENTRY eglGetDisplay(EGLNativeDisplayType display_id);
EGLAPI EGLBoolean EGLAPIENTRY eglInitialize(EGLDisplay dpy, EGLint *major, EGLint *minor);
EGLAPI EGLBoolean EGLAPIENTRY eglTerminate(EGLDisplay dpy);

EGLAPI const char * EGLAPIENTRY eglQueryString(EGLDisplay dpy, EGLint name);

EGLAPI EGLBoolean EGLAPIENTRY eglGetConfigs(EGLDisplay dpy, EGLConfig *configs,           EGLint config_size, EGLint *num_config);
EGLAPI EGLBoolean EGLAPIENTRY eglChooseConfig(EGLDisplay dpy, const EGLint *attrib_list,                EGLConfig *configs, EGLint config_size,                EGLint *num_config);
EGLAPI EGLBoolean EGLAPIENTRY eglGetConfigAttrib(EGLDisplay dpy, EGLConfig config,                   EGLint attribute, EGLint *value);

EGLAPI EGLSurface EGLAPIENTRY eglCreateWindowSurface(EGLDisplay dpy, EGLConfig config,                   EGLNativeWindowType win,                   const EGLint *attrib_list);
EGLAPI EGLSurface EGLAPIENTRY eglCreatePbufferSurface(EGLDisplay dpy, EGLConfig config,                    const EGLint *attrib_list); 
EGLAPI EGLSurface EGLAPIENTRY eglCreatePixmapSurface(EGLDisplay dpy, EGLConfig config,                   EGLNativePixmapType pixmap,                   const EGLint *attrib_list);
EGLAPI EGLBoolean EGLAPIENTRY eglDestroySurface(EGLDisplay dpy, EGLSurface surface);
EGLAPI EGLBoolean EGLAPIENTRY eglQuerySurface(EGLDisplay dpy, EGLSurface surface,                EGLint attribute, EGLint *value);

EGLAPI EGLBoolean EGLAPIENTRY eglBindAPI(EGLenum api);
EGLAPI EGLenum EGLAPIENTRY eglQueryAPI(void);

EGLAPI EGLBoolean EGLAPIENTRY eglWaitClient(void);

EGLAPI EGLBoolean EGLAPIENTRY eglReleaseThread(void);

EGLAPI EGLSurface EGLAPIENTRY eglCreatePbufferFromClientBuffer(          EGLDisplay dpy, EGLenum buftype, EGLClientBuffer buffer,           EGLConfig config, const EGLint *attrib_list); 
EGLAPI EGLBoolean EGLAPIENTRY eglSurfaceAttrib(EGLDisplay dpy, EGLSurface surface,                 EGLint attribute, EGLint value);
EGLAPI EGLBoolean EGLAPIENTRY eglBindTexImage(EGLDisplay dpy, EGLSurface surface, EGLint buffer);
EGLAPI EGLBoolean EGLAPIENTRY eglReleaseTexImage(EGLDisplay dpy, EGLSurface surface, EGLint buffer);


EGLAPI EGLBoolean EGLAPIENTRY eglSwapInterval(EGLDisplay dpy, EGLint interval);


EGLAPI EGLContext EGLAPIENTRY eglCreateContext(EGLDisplay dpy, EGLConfig config,                 EGLContext share_context,                 const EGLint *attrib_list);
EGLAPI EGLBoolean EGLAPIENTRY eglDestroyContext(EGLDisplay dpy, EGLContext ctx);
EGLAPI EGLBoolean EGLAPIENTRY eglMakeCurrent(EGLDisplay dpy, EGLSurface draw,               EGLSurface read, EGLContext ctx);

EGLAPI EGLContext EGLAPIENTRY eglGetCurrentContext(void);
EGLAPI EGLSurface EGLAPIENTRY eglGetCurrentSurface(EGLint readdraw);
EGLAPI EGLDisplay EGLAPIENTRY eglGetCurrentDisplay(void);
EGLAPI EGLBoolean EGLAPIENTRY eglQueryContext(EGLDisplay dpy, EGLContext ctx,                EGLint attribute, EGLint *value);

EGLAPI EGLBoolean EGLAPIENTRY eglWaitGL(void);
EGLAPI EGLBoolean EGLAPIENTRY eglWaitNative(EGLint engine);
EGLAPI EGLBoolean EGLAPIENTRY eglSwapBuffers(EGLDisplay dpy, EGLSurface surface);
EGLAPI EGLBoolean EGLAPIENTRY eglCopyBuffers(EGLDisplay dpy, EGLSurface surface,               EGLNativePixmapType target);

/* This is a generic function pointer type, whose name indicates it must
 * be cast to the proper type *and calling convention* before use.
 */
typedef void (*__eglMustCastToProperFunctionPointerType)(void);

/* Now, define eglGetProcAddress using the generic function ptr. type */
EGLAPI __eglMustCastToProperFunctionPointerType EGLAPIENTRY        eglGetProcAddress(const char *procname);

#ifdef __cplusplus
}
#endif

#endif /* __egl_h_ */
