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  1. /*
  2.  * Copyright © 2013 Intel Corporation
  3.  *
  4.  * Permission is hereby granted, free of charge, to any person obtaining a
  5.  * copy of this software and associated documentation files (the "Software"),
  6.  * to deal in the Software without restriction, including without limitation
  7.  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  8.  * and/or sell copies of the Software, and to permit persons to whom the
  9.  * Software is furnished to do so, subject to the following conditions:
  10.  *
  11.  * The above copyright notice and this permission notice (including the next
  12.  * paragraph) shall be included in all copies or substantial portions of the
  13.  * Software.
  14.  *
  15.  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16.  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17.  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  18.  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  19.  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  20.  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  21.  * DEALINGS IN THE SOFTWARE.
  22.  */
  23.  
  24. #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
  25.  
  26. #include "glxclient.h"
  27. #include "glx_error.h"
  28. #include "dri_interface.h"
  29. #include "dri2_priv.h"
  30. #if defined(HAVE_DRI3)
  31. #include "dri3_priv.h"
  32. #endif
  33. #include "drisw_priv.h"
  34.  
  35. #define __RENDERER(attrib) \
  36.     { GLX_RENDERER_##attrib##_MESA, __DRI2_RENDERER_##attrib }
  37.  
  38. static const struct {
  39.    unsigned int glx_attrib, dri2_attrib;
  40. } query_renderer_map[] = {
  41.   __RENDERER(VENDOR_ID),
  42.   __RENDERER(DEVICE_ID),
  43.   __RENDERER(VERSION),
  44.   __RENDERER(ACCELERATED),
  45.   __RENDERER(VIDEO_MEMORY),
  46.   __RENDERER(UNIFIED_MEMORY_ARCHITECTURE),
  47.   __RENDERER(PREFERRED_PROFILE),
  48.   __RENDERER(OPENGL_CORE_PROFILE_VERSION),
  49.   __RENDERER(OPENGL_COMPATIBILITY_PROFILE_VERSION),
  50.   __RENDERER(OPENGL_ES_PROFILE_VERSION),
  51.   __RENDERER(OPENGL_ES2_PROFILE_VERSION),
  52. };
  53.  
  54. #undef __RENDERER
  55.  
  56. static int
  57. dri2_convert_glx_query_renderer_attribs(int attribute)
  58. {
  59.    int i;
  60.  
  61.    for (i = 0; i < ARRAY_SIZE(query_renderer_map); i++)
  62.       if (query_renderer_map[i].glx_attrib == attribute)
  63.          return query_renderer_map[i].dri2_attrib;
  64.  
  65.    return -1;
  66. }
  67.  
  68. /* Convert internal dri context profile bits into GLX context profile bits */
  69. static inline void
  70. dri_convert_context_profile_bits(int attribute, unsigned int *value)
  71. {
  72.    if (attribute == GLX_RENDERER_PREFERRED_PROFILE_MESA) {
  73.       if (value[0] == (1U << __DRI_API_OPENGL_CORE))
  74.          value[0] = GLX_CONTEXT_CORE_PROFILE_BIT_ARB;
  75.       else if (value[0] == (1U << __DRI_API_OPENGL))
  76.          value[0] = GLX_CONTEXT_COMPATIBILITY_PROFILE_BIT_ARB;
  77.    }
  78. }
  79.  
  80. _X_HIDDEN int
  81. dri2_query_renderer_integer(struct glx_screen *base, int attribute,
  82.                             unsigned int *value)
  83. {
  84.    int ret;
  85.    struct dri2_screen *const psc = (struct dri2_screen *) base;
  86.  
  87.    /* Even though there are invalid values (and
  88.     * dri2_convert_glx_query_renderer_attribs may return -1), the higher level
  89.     * GLX code is required to perform the filtering.  Assume that we got a
  90.     * good value.
  91.     */
  92.    const int dri_attribute = dri2_convert_glx_query_renderer_attribs(attribute);
  93.  
  94.    if (psc->rendererQuery == NULL)
  95.       return -1;
  96.  
  97.    ret = psc->rendererQuery->queryInteger(psc->driScreen, dri_attribute,
  98.                                           value);
  99.    dri_convert_context_profile_bits(attribute, value);
  100.  
  101.    return ret;
  102. }
  103.  
  104. _X_HIDDEN int
  105. dri2_query_renderer_string(struct glx_screen *base, int attribute,
  106.                            const char **value)
  107. {
  108.    struct dri2_screen *const psc = (struct dri2_screen *) base;
  109.  
  110.    /* Even though queryString only accepts a subset of the possible GLX
  111.     * queries, the higher level GLX code is required to perform the filtering.
  112.     * Assume that we got a good value.
  113.     */
  114.    const int dri_attribute = dri2_convert_glx_query_renderer_attribs(attribute);
  115.  
  116.    if (psc->rendererQuery == NULL)
  117.       return -1;
  118.  
  119.    return psc->rendererQuery->queryString(psc->driScreen, dri_attribute, value);
  120. }
  121.  
  122. #if defined(HAVE_DRI3)
  123. _X_HIDDEN int
  124. dri3_query_renderer_integer(struct glx_screen *base, int attribute,
  125.                             unsigned int *value)
  126. {
  127.    int ret;
  128.    struct dri3_screen *const psc = (struct dri3_screen *) base;
  129.  
  130.    /* Even though there are invalid values (and
  131.     * dri2_convert_glx_query_renderer_attribs may return -1), the higher level
  132.     * GLX code is required to perform the filtering.  Assume that we got a
  133.     * good value.
  134.     */
  135.    const int dri_attribute = dri2_convert_glx_query_renderer_attribs(attribute);
  136.  
  137.    if (psc->rendererQuery == NULL)
  138.       return -1;
  139.  
  140.    ret = psc->rendererQuery->queryInteger(psc->driScreen, dri_attribute,
  141.                                           value);
  142.    dri_convert_context_profile_bits(attribute, value);
  143.  
  144.    return ret;
  145. }
  146.  
  147. _X_HIDDEN int
  148. dri3_query_renderer_string(struct glx_screen *base, int attribute,
  149.                            const char **value)
  150. {
  151.    struct dri3_screen *const psc = (struct dri3_screen *) base;
  152.  
  153.    /* Even though queryString only accepts a subset of the possible GLX
  154.     * queries, the higher level GLX code is required to perform the filtering.
  155.     * Assume that we got a good value.
  156.     */
  157.    const int dri_attribute = dri2_convert_glx_query_renderer_attribs(attribute);
  158.  
  159.    if (psc->rendererQuery == NULL)
  160.       return -1;
  161.  
  162.    return psc->rendererQuery->queryString(psc->driScreen, dri_attribute, value);
  163. }
  164. #endif /* HAVE_DRI3 */
  165.  
  166. _X_HIDDEN int
  167. drisw_query_renderer_integer(struct glx_screen *base, int attribute,
  168.                              unsigned int *value)
  169. {
  170.    int ret;
  171.    struct drisw_screen *const psc = (struct drisw_screen *) base;
  172.  
  173.    /* Even though there are invalid values (and
  174.     * dri2_convert_glx_query_renderer_attribs may return -1), the higher level
  175.     * GLX code is required to perform the filtering.  Assume that we got a
  176.     * good value.
  177.     */
  178.    const int dri_attribute = dri2_convert_glx_query_renderer_attribs(attribute);
  179.  
  180.    if (psc->rendererQuery == NULL)
  181.       return -1;
  182.  
  183.    ret = psc->rendererQuery->queryInteger(psc->driScreen, dri_attribute,
  184.                                           value);
  185.    dri_convert_context_profile_bits(attribute, value);
  186.  
  187.    return ret;
  188. }
  189.  
  190. _X_HIDDEN int
  191. drisw_query_renderer_string(struct glx_screen *base, int attribute,
  192.                             const char **value)
  193. {
  194.    struct drisw_screen *const psc = (struct drisw_screen *) base;
  195.  
  196.    /* Even though queryString only accepts a subset of the possible GLX
  197.     * queries, the higher level GLX code is required to perform the filtering.
  198.     * Assume that we got a good value.
  199.     */
  200.    const int dri_attribute = dri2_convert_glx_query_renderer_attribs(attribute);
  201.  
  202.    if (psc->rendererQuery == NULL)
  203.       return -1;
  204.  
  205.    return psc->rendererQuery->queryString(psc->driScreen, dri_attribute, value);
  206. }
  207.  
  208.  
  209. #endif /* GLX_DIRECT_RENDERING */
  210.