mirror of https://gitlab.freedesktop.org/mesa/mesa
306 lines
9.2 KiB
C
306 lines
9.2 KiB
C
/*
|
|
* (C) Copyright IBM Corporation 2003
|
|
* 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
|
|
* on 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 NON-INFRINGEMENT. IN NO EVENT SHALL
|
|
* VA LINUX SYSTEM, IBM AND/OR THEIR SUPPLIERS 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.
|
|
*/
|
|
|
|
/**
|
|
* \file glxconfig.c
|
|
* Utility routines for working with \c struct glx_config structures. At
|
|
* some point most or all of these functions will be moved to the Mesa
|
|
* code base.
|
|
*
|
|
* \author Ian Romanick <idr@us.ibm.com>
|
|
*/
|
|
|
|
#include <GL/glx.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
|
|
#include "glxconfig.h"
|
|
|
|
#define NUM_VISUAL_TYPES 6
|
|
|
|
/**
|
|
* Get data from a GLX config
|
|
*
|
|
* \param mode GL context mode whose data is to be returned.
|
|
* \param attribute Attribute of \c mode that is to be returned.
|
|
* \param value_return Location to store the data member of \c mode.
|
|
* \return If \c attribute is a valid attribute of \c mode, zero is
|
|
* returned. Otherwise \c GLX_BAD_ATTRIBUTE is returned.
|
|
*/
|
|
_X_HIDDEN int
|
|
glx_config_get(struct glx_config * mode, int attribute, int *value_return)
|
|
{
|
|
switch (attribute) {
|
|
case GLX_USE_GL:
|
|
*value_return = GL_TRUE;
|
|
return 0;
|
|
case GLX_BUFFER_SIZE:
|
|
*value_return = mode->rgbBits;
|
|
return 0;
|
|
case GLX_RGBA:
|
|
*value_return = !(mode->renderType & GLX_COLOR_INDEX_BIT);
|
|
return 0;
|
|
case GLX_RED_SIZE:
|
|
*value_return = mode->redBits;
|
|
return 0;
|
|
case GLX_GREEN_SIZE:
|
|
*value_return = mode->greenBits;
|
|
return 0;
|
|
case GLX_BLUE_SIZE:
|
|
*value_return = mode->blueBits;
|
|
return 0;
|
|
case GLX_ALPHA_SIZE:
|
|
*value_return = mode->alphaBits;
|
|
return 0;
|
|
case GLX_DOUBLEBUFFER:
|
|
*value_return = mode->doubleBufferMode;
|
|
return 0;
|
|
case GLX_STEREO:
|
|
*value_return = mode->stereoMode;
|
|
return 0;
|
|
case GLX_AUX_BUFFERS:
|
|
*value_return = mode->numAuxBuffers;
|
|
return 0;
|
|
case GLX_DEPTH_SIZE:
|
|
*value_return = mode->depthBits;
|
|
return 0;
|
|
case GLX_STENCIL_SIZE:
|
|
*value_return = mode->stencilBits;
|
|
return 0;
|
|
case GLX_ACCUM_RED_SIZE:
|
|
*value_return = mode->accumRedBits;
|
|
return 0;
|
|
case GLX_ACCUM_GREEN_SIZE:
|
|
*value_return = mode->accumGreenBits;
|
|
return 0;
|
|
case GLX_ACCUM_BLUE_SIZE:
|
|
*value_return = mode->accumBlueBits;
|
|
return 0;
|
|
case GLX_ACCUM_ALPHA_SIZE:
|
|
*value_return = mode->accumAlphaBits;
|
|
return 0;
|
|
case GLX_LEVEL:
|
|
*value_return = mode->level;
|
|
return 0;
|
|
#ifndef GLX_USE_APPLEGL /* This isn't supported by CGL. */
|
|
case GLX_TRANSPARENT_TYPE_EXT:
|
|
*value_return = mode->transparentPixel;
|
|
return 0;
|
|
#endif
|
|
case GLX_TRANSPARENT_RED_VALUE:
|
|
*value_return = mode->transparentRed;
|
|
return 0;
|
|
case GLX_TRANSPARENT_GREEN_VALUE:
|
|
*value_return = mode->transparentGreen;
|
|
return 0;
|
|
case GLX_TRANSPARENT_BLUE_VALUE:
|
|
*value_return = mode->transparentBlue;
|
|
return 0;
|
|
case GLX_TRANSPARENT_ALPHA_VALUE:
|
|
*value_return = mode->transparentAlpha;
|
|
return 0;
|
|
case GLX_TRANSPARENT_INDEX_VALUE:
|
|
*value_return = mode->transparentIndex;
|
|
return 0;
|
|
case GLX_X_VISUAL_TYPE:
|
|
*value_return = mode->visualType;
|
|
return 0;
|
|
case GLX_CONFIG_CAVEAT:
|
|
*value_return = mode->visualRating;
|
|
return 0;
|
|
case GLX_VISUAL_ID:
|
|
*value_return = mode->visualID;
|
|
return 0;
|
|
case GLX_DRAWABLE_TYPE:
|
|
*value_return = mode->drawableType;
|
|
return 0;
|
|
case GLX_RENDER_TYPE:
|
|
*value_return = mode->renderType;
|
|
return 0;
|
|
case GLX_X_RENDERABLE:
|
|
*value_return = mode->xRenderable;
|
|
return 0;
|
|
case GLX_FBCONFIG_ID:
|
|
*value_return = mode->fbconfigID;
|
|
return 0;
|
|
case GLX_MAX_PBUFFER_WIDTH:
|
|
*value_return = 4096; /* _EGL_MAX_PBUFFER_WIDTH */
|
|
return 0;
|
|
case GLX_MAX_PBUFFER_HEIGHT:
|
|
*value_return = 4096; /* _EGL_MAX_PBUFFER_HEIGHT */
|
|
return 0;
|
|
case GLX_MAX_PBUFFER_PIXELS:
|
|
*value_return = mode->maxPbufferPixels;
|
|
return 0;
|
|
#ifndef GLX_USE_APPLEGL /* These aren't supported by CGL. */
|
|
case GLX_OPTIMAL_PBUFFER_WIDTH_SGIX:
|
|
*value_return = mode->optimalPbufferWidth;
|
|
return 0;
|
|
case GLX_OPTIMAL_PBUFFER_HEIGHT_SGIX:
|
|
*value_return = mode->optimalPbufferHeight;
|
|
return 0;
|
|
case GLX_SWAP_METHOD_OML:
|
|
*value_return = mode->swapMethod;
|
|
return 0;
|
|
#endif
|
|
case GLX_SAMPLE_BUFFERS_SGIS:
|
|
*value_return = mode->sampleBuffers;
|
|
return 0;
|
|
case GLX_SAMPLES_SGIS:
|
|
*value_return = mode->samples;
|
|
return 0;
|
|
case GLX_BIND_TO_TEXTURE_RGB_EXT:
|
|
*value_return = mode->bindToTextureRgb;
|
|
return 0;
|
|
case GLX_BIND_TO_TEXTURE_RGBA_EXT:
|
|
*value_return = mode->bindToTextureRgba;
|
|
return 0;
|
|
case GLX_BIND_TO_MIPMAP_TEXTURE_EXT:
|
|
*value_return = mode->bindToMipmapTexture == GL_TRUE ? GL_TRUE :
|
|
GL_FALSE;
|
|
return 0;
|
|
case GLX_BIND_TO_TEXTURE_TARGETS_EXT:
|
|
*value_return = mode->bindToTextureTargets;
|
|
return 0;
|
|
case GLX_Y_INVERTED_EXT:
|
|
*value_return = mode->yInverted;
|
|
return 0;
|
|
case GLX_FRAMEBUFFER_SRGB_CAPABLE_EXT:
|
|
*value_return = mode->sRGBCapable;
|
|
return 0;
|
|
case GLX_FLOAT_COMPONENTS_NV:
|
|
*value_return = mode->floatComponentsNV;
|
|
return 0;
|
|
|
|
/* Applications are NOT allowed to query GLX_VISUAL_SELECT_GROUP_SGIX.
|
|
* It is ONLY for communication between the GLX client and the GLX
|
|
* server.
|
|
*/
|
|
case GLX_VISUAL_SELECT_GROUP_SGIX:
|
|
default:
|
|
return GLX_BAD_ATTRIBUTE;
|
|
}
|
|
}
|
|
|
|
|
|
/**
|
|
* Allocate a linked list of \c struct glx_config structures. The fields of
|
|
* each structure will be initialized to "reasonable" default values. In
|
|
* most cases this is the default value defined by table 3.4 of the GLX
|
|
* 1.3 specification. This means that most values are either initialized to
|
|
* zero or \c GLX_DONT_CARE (which is -1). As support for additional
|
|
* extensions is added, the new values will be initialized to appropriate
|
|
* values from the extension specification.
|
|
*
|
|
* \param count Number of structures to allocate.
|
|
* \returns A pointer to the first element in a linked list of \c count
|
|
* stuctures on success, or \c NULL on failure.
|
|
*/
|
|
_X_HIDDEN struct glx_config *
|
|
glx_config_create_list(unsigned count)
|
|
{
|
|
const size_t size = sizeof(struct glx_config);
|
|
struct glx_config *base = NULL;
|
|
struct glx_config **next;
|
|
unsigned i;
|
|
|
|
next = &base;
|
|
for (i = 0; i < count; i++) {
|
|
*next = calloc(1, size);
|
|
if (*next == NULL) {
|
|
glx_config_destroy_list(base);
|
|
base = NULL;
|
|
break;
|
|
}
|
|
|
|
(*next)->visualID = GLX_DONT_CARE;
|
|
(*next)->visualType = GLX_DONT_CARE;
|
|
(*next)->visualRating = GLX_NONE;
|
|
(*next)->transparentPixel = GLX_NONE;
|
|
(*next)->transparentRed = GLX_DONT_CARE;
|
|
(*next)->transparentGreen = GLX_DONT_CARE;
|
|
(*next)->transparentBlue = GLX_DONT_CARE;
|
|
(*next)->transparentAlpha = GLX_DONT_CARE;
|
|
(*next)->transparentIndex = GLX_DONT_CARE;
|
|
(*next)->xRenderable = GLX_DONT_CARE;
|
|
(*next)->fbconfigID = GLX_DONT_CARE;
|
|
(*next)->swapMethod = GLX_SWAP_UNDEFINED_OML;
|
|
(*next)->bindToTextureRgb = GLX_DONT_CARE;
|
|
(*next)->bindToTextureRgba = GLX_DONT_CARE;
|
|
(*next)->bindToMipmapTexture = GLX_DONT_CARE;
|
|
(*next)->bindToTextureTargets = GLX_DONT_CARE;
|
|
(*next)->yInverted = GLX_DONT_CARE;
|
|
(*next)->sRGBCapable = GL_FALSE;
|
|
|
|
next = &((*next)->next);
|
|
}
|
|
|
|
return base;
|
|
}
|
|
|
|
_X_HIDDEN void
|
|
glx_config_destroy_list(struct glx_config *configs)
|
|
{
|
|
while (configs != NULL) {
|
|
struct glx_config *const next = configs->next;
|
|
|
|
free(configs);
|
|
configs = next;
|
|
}
|
|
}
|
|
|
|
|
|
/**
|
|
* Find a context mode matching a Visual ID.
|
|
*
|
|
* \param modes List list of context-mode structures to be searched.
|
|
* \param vid Visual ID to be found.
|
|
* \returns A pointer to a context-mode in \c modes if \c vid was found in
|
|
* the list, or \c NULL if it was not.
|
|
*/
|
|
|
|
_X_HIDDEN struct glx_config *
|
|
glx_config_find_visual(struct glx_config *configs, int vid)
|
|
{
|
|
struct glx_config *c;
|
|
|
|
for (c = configs; c != NULL; c = c->next)
|
|
if (c->visualID == vid)
|
|
return c;
|
|
|
|
return NULL;
|
|
}
|
|
|
|
_X_HIDDEN struct glx_config *
|
|
glx_config_find_fbconfig(struct glx_config *configs, int fbid)
|
|
{
|
|
struct glx_config *c;
|
|
|
|
for (c = configs; c != NULL; c = c->next)
|
|
if (c->fbconfigID == fbid)
|
|
return c;
|
|
|
|
return NULL;
|
|
}
|