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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
dri2_convert_glx_query_renderer_attribs(int attribute)57 dri2_convert_glx_query_renderer_attribs(int attribute)
58 {
59    unsigned 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
dri_convert_context_profile_bits(int attribute,unsigned int * value)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
dri2_query_renderer_integer(struct glx_screen * base,int attribute,unsigned int * value)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
dri2_query_renderer_string(struct glx_screen * base,int attribute,const char ** value)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
dri3_query_renderer_integer(struct glx_screen * base,int attribute,unsigned int * value)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
dri3_query_renderer_string(struct glx_screen * base,int attribute,const char ** value)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
drisw_query_renderer_integer(struct glx_screen * base,int attribute,unsigned int * value)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
drisw_query_renderer_string(struct glx_screen * base,int attribute,const char ** value)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