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/**************************************************************************
*
* Copyright 2008 VMware, Inc.
* Copyright 2009-2010 Chia-I Wu <olvaffe@gmail.com>
* Copyright 2010-2011 LunarG, Inc.
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sub license, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
*
* THE SOFTWARE IS 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 SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
**************************************************************************/
#ifndef EGLCONFIG_INCLUDED
#define EGLCONFIG_INCLUDED
#include <assert.h>
#include <stddef.h>
#include "c99_compat.h"
#include "egltypedefs.h"
/* update _eglValidationTable and _eglOffsetOfConfig before updating this
* struct */
struct _egl_config
{
_EGLDisplay *Display;
/* core */
EGLint BufferSize;
EGLint AlphaSize;
EGLint BlueSize;
EGLint GreenSize;
EGLint RedSize;
EGLint DepthSize;
EGLint StencilSize;
EGLint ConfigCaveat;
EGLint ConfigID;
EGLint Level;
EGLint MaxPbufferHeight;
EGLint MaxPbufferPixels;
EGLint MaxPbufferWidth;
EGLint NativeRenderable;
EGLint NativeVisualID;
EGLint NativeVisualType;
EGLint Samples;
EGLint SampleBuffers;
EGLint SurfaceType;
EGLint TransparentType;
EGLint TransparentBlueValue;
EGLint TransparentGreenValue;
EGLint TransparentRedValue;
EGLint BindToTextureRGB;
EGLint BindToTextureRGBA;
EGLint MinSwapInterval;
EGLint MaxSwapInterval;
EGLint LuminanceSize;
EGLint AlphaMaskSize;
EGLint ColorBufferType;
EGLint RenderableType;
EGLint MatchNativePixmap;
EGLint Conformant;
/* extensions */
EGLint YInvertedNOK;
};
/**
* Map an EGL attribute enum to the offset of the member in _EGLConfig.
*/
static inline EGLint
_eglOffsetOfConfig(EGLint attr)
{
switch (attr) {
#define ATTRIB_MAP(attr, memb) case attr: return offsetof(_EGLConfig, memb)
/* core */
ATTRIB_MAP(EGL_BUFFER_SIZE, BufferSize);
ATTRIB_MAP(EGL_ALPHA_SIZE, AlphaSize);
ATTRIB_MAP(EGL_BLUE_SIZE, BlueSize);
ATTRIB_MAP(EGL_GREEN_SIZE, GreenSize);
ATTRIB_MAP(EGL_RED_SIZE, RedSize);
ATTRIB_MAP(EGL_DEPTH_SIZE, DepthSize);
ATTRIB_MAP(EGL_STENCIL_SIZE, StencilSize);
ATTRIB_MAP(EGL_CONFIG_CAVEAT, ConfigCaveat);
ATTRIB_MAP(EGL_CONFIG_ID, ConfigID);
ATTRIB_MAP(EGL_LEVEL, Level);
ATTRIB_MAP(EGL_MAX_PBUFFER_HEIGHT, MaxPbufferHeight);
ATTRIB_MAP(EGL_MAX_PBUFFER_PIXELS, MaxPbufferPixels);
ATTRIB_MAP(EGL_MAX_PBUFFER_WIDTH, MaxPbufferWidth);
ATTRIB_MAP(EGL_NATIVE_RENDERABLE, NativeRenderable);
ATTRIB_MAP(EGL_NATIVE_VISUAL_ID, NativeVisualID);
ATTRIB_MAP(EGL_NATIVE_VISUAL_TYPE, NativeVisualType);
ATTRIB_MAP(EGL_SAMPLES, Samples);
ATTRIB_MAP(EGL_SAMPLE_BUFFERS, SampleBuffers);
ATTRIB_MAP(EGL_SURFACE_TYPE, SurfaceType);
ATTRIB_MAP(EGL_TRANSPARENT_TYPE, TransparentType);
ATTRIB_MAP(EGL_TRANSPARENT_BLUE_VALUE, TransparentBlueValue);
ATTRIB_MAP(EGL_TRANSPARENT_GREEN_VALUE, TransparentGreenValue);
ATTRIB_MAP(EGL_TRANSPARENT_RED_VALUE, TransparentRedValue);
ATTRIB_MAP(EGL_BIND_TO_TEXTURE_RGB, BindToTextureRGB);
ATTRIB_MAP(EGL_BIND_TO_TEXTURE_RGBA, BindToTextureRGBA);
ATTRIB_MAP(EGL_MIN_SWAP_INTERVAL, MinSwapInterval);
ATTRIB_MAP(EGL_MAX_SWAP_INTERVAL, MaxSwapInterval);
ATTRIB_MAP(EGL_LUMINANCE_SIZE, LuminanceSize);
ATTRIB_MAP(EGL_ALPHA_MASK_SIZE, AlphaMaskSize);
ATTRIB_MAP(EGL_COLOR_BUFFER_TYPE, ColorBufferType);
ATTRIB_MAP(EGL_RENDERABLE_TYPE, RenderableType);
ATTRIB_MAP(EGL_MATCH_NATIVE_PIXMAP, MatchNativePixmap);
ATTRIB_MAP(EGL_CONFORMANT, Conformant);
/* extensions */
ATTRIB_MAP(EGL_Y_INVERTED_NOK, YInvertedNOK);
#undef ATTRIB_MAP
default:
return -1;
}
}
/**
* Update a config for a given key.
*
* Note that a valid key is not necessarily a valid attribute. There are gaps
* in the attribute enums. The separation is to catch application errors.
* Drivers should never set a key that is an invalid attribute.
*/
static inline void
_eglSetConfigKey(_EGLConfig *conf, EGLint key, EGLint val)
{
EGLint offset = _eglOffsetOfConfig(key);
assert(offset >= 0);
*((EGLint *) ((char *) conf + offset)) = val;
}
/**
* Return the value for a given key.
*/
static inline EGLint
_eglGetConfigKey(const _EGLConfig *conf, EGLint key)
{
EGLint offset = _eglOffsetOfConfig(key);
assert(offset >= 0);
return *((EGLint *) ((char *) conf + offset));
}
extern void
_eglInitConfig(_EGLConfig *config, _EGLDisplay *dpy, EGLint id);
extern EGLConfig
_eglLinkConfig(_EGLConfig *conf);
extern _EGLConfig *
_eglLookupConfig(EGLConfig config, _EGLDisplay *dpy);
/**
* Return the handle of a linked config.
*/
static inline EGLConfig
_eglGetConfigHandle(_EGLConfig *conf)
{
return (EGLConfig) conf;
}
extern EGLBoolean
_eglValidateConfig(const _EGLConfig *conf, EGLBoolean for_matching);
extern EGLBoolean
_eglMatchConfig(const _EGLConfig *conf, const _EGLConfig *criteria);
extern EGLBoolean
_eglParseConfigAttribList(_EGLConfig *conf, _EGLDisplay *dpy,
const EGLint *attrib_list);
extern EGLint
_eglCompareConfigs(const _EGLConfig *conf1, const _EGLConfig *conf2,
const _EGLConfig *criteria, EGLBoolean compare_id);
extern EGLBoolean
_eglFilterConfigArray(_EGLArray *array, EGLConfig *configs,
EGLint config_size, EGLint *num_configs,
EGLBoolean (*match)(const _EGLConfig *, void *),
EGLint (*compare)(const _EGLConfig *, const _EGLConfig *,
void *),
void *filter_data);
extern EGLBoolean
_eglChooseConfig(_EGLDriver *drv, _EGLDisplay *dpy, const EGLint *attrib_list, EGLConfig *configs, EGLint config_size, EGLint *num_config);
extern EGLBoolean
_eglGetConfigAttrib(_EGLDriver *drv, _EGLDisplay *dpy, _EGLConfig *conf, EGLint attribute, EGLint *value);
extern EGLBoolean
_eglGetConfigs(_EGLDriver *drv, _EGLDisplay *dpy, EGLConfig *configs, EGLint config_size, EGLint *num_config);
#endif /* EGLCONFIG_INCLUDED */
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