1 // Copyright 2012 Intel Corporation
2 //
3 // All rights reserved.
4 //
5 // Redistribution and use in source and binary forms, with or without
6 // modification, are permitted provided that the following conditions are met:
7 //
8 // - Redistributions of source code must retain the above copyright notice, this
9 // list of conditions and the following disclaimer.
10 //
11 // - Redistributions in binary form must reproduce the above copyright notice,
12 // this list of conditions and the following disclaimer in the documentation
13 // and/or other materials provided with the distribution.
14 //
15 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
16 // AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 // IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
18 // DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
19 // FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 // DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
21 // SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
22 // CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
23 // OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
24 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25
26 #include "api_priv.h"
27
28 #include "wcore_error.h"
29 #include "wcore_platform.h"
30
31 struct wcore_platform* cgl_platform_create(void);
32 struct wcore_platform* droid_platform_create(void);
33 struct wcore_platform* glx_platform_create(void);
34 struct wcore_platform* wayland_platform_create(void);
35 struct wcore_platform* xegl_platform_create(void);
36 struct wcore_platform* wgbm_platform_create(void);
37 struct wcore_platform* wgl_platform_create(void);
38 struct wcore_platform* nacl_platform_create(void);
39 struct wcore_platform* sl_platform_create(void);
40
41 static bool
waffle_init_parse_attrib_list(const int32_t attrib_list[],int * platform)42 waffle_init_parse_attrib_list(
43 const int32_t attrib_list[],
44 int *platform)
45 {
46 bool found_platform = false;
47
48 for (const int32_t *i = attrib_list; *i != 0; i += 2) {
49 const int32_t attr = i[0];
50 const int32_t value = i[1];
51
52 switch (attr) {
53 case WAFFLE_PLATFORM:
54 switch (value) {
55 #define CASE_DEFINED_PLATFORM(name) \
56 case WAFFLE_PLATFORM_##name : \
57 found_platform = true; \
58 *platform = value; \
59 break;
60
61 #define CASE_UNDEFINED_PLATFORM(name) \
62 case WAFFLE_PLATFORM_##name : \
63 wcore_errorf(WAFFLE_ERROR_BUILT_WITHOUT_SUPPORT, \
64 "waffle was built without support for WAFFLE_PLATFORM_" #name); \
65 return false;
66
67 #ifdef WAFFLE_HAS_ANDROID
68 CASE_DEFINED_PLATFORM(ANDROID)
69 #else
70 CASE_UNDEFINED_PLATFORM(ANDROID)
71 #endif
72
73 #ifdef WAFFLE_HAS_CGL
74 CASE_DEFINED_PLATFORM(CGL)
75 #else
76 CASE_UNDEFINED_PLATFORM(CGL)
77 #endif
78
79 #ifdef WAFFLE_HAS_GLX
80 CASE_DEFINED_PLATFORM(GLX)
81 #else
82 CASE_UNDEFINED_PLATFORM(GLX)
83 #endif
84
85 #ifdef WAFFLE_HAS_WAYLAND
86 CASE_DEFINED_PLATFORM(WAYLAND)
87 #else
88 CASE_UNDEFINED_PLATFORM(WAYLAND)
89 #endif
90
91 #ifdef WAFFLE_HAS_X11_EGL
92 CASE_DEFINED_PLATFORM(X11_EGL)
93 #else
94 CASE_UNDEFINED_PLATFORM(X11_EGL)
95 #endif
96
97 #ifdef WAFFLE_HAS_GBM
98 CASE_DEFINED_PLATFORM(GBM)
99 #else
100 CASE_UNDEFINED_PLATFORM(GBM)
101 #endif
102
103 #ifdef WAFFLE_HAS_WGL
104 CASE_DEFINED_PLATFORM(WGL)
105 #else
106 CASE_UNDEFINED_PLATFORM(WGL)
107 #endif
108
109 #ifdef WAFFLE_HAS_NACL
110 CASE_DEFINED_PLATFORM(NACL)
111 #else
112 CASE_UNDEFINED_PLATFORM(NACL)
113 #endif
114
115 #ifdef WAFFLE_HAS_SURFACELESS_EGL
116 CASE_DEFINED_PLATFORM(SURFACELESS_EGL)
117 #else
118 CASE_UNDEFINED_PLATFORM(SURFACELESS_EGL)
119 #endif
120
121 default:
122 wcore_errorf(WAFFLE_ERROR_BAD_ATTRIBUTE,
123 "WAFFLE_PLATFORM has bad value 0x%x",
124 value);
125 return false;
126
127 #undef CASE_DEFINED_PLATFORM
128 #undef CASE_UNDEFINED_PLATFORM
129 }
130
131 break;
132 default:
133 wcore_errorf(WAFFLE_ERROR_BAD_ATTRIBUTE,
134 "bad attribute name %#x", attr);
135 return false;
136 break;
137 }
138 }
139
140 if (!found_platform) {
141 wcore_errorf(WAFFLE_ERROR_BAD_ATTRIBUTE,
142 "attribute list is missing WAFFLE_PLATFORM");
143 return false;
144 }
145
146 return true;
147 }
148
149 static struct wcore_platform*
waffle_init_create_platform(int32_t waffle_platform)150 waffle_init_create_platform(int32_t waffle_platform)
151 {
152 struct wcore_platform *wc_platform = NULL;
153
154 switch (waffle_platform) {
155 #ifdef WAFFLE_HAS_ANDROID
156 case WAFFLE_PLATFORM_ANDROID:
157 wc_platform = droid_platform_create();
158 break;
159 #endif
160 #ifdef WAFFLE_HAS_CGL
161 case WAFFLE_PLATFORM_CGL:
162 wc_platform = cgl_platform_create();
163 break;
164 #endif
165 #ifdef WAFFLE_HAS_GLX
166 case WAFFLE_PLATFORM_GLX:
167 wc_platform = glx_platform_create();
168 break;
169 #endif
170 #ifdef WAFFLE_HAS_WAYLAND
171 case WAFFLE_PLATFORM_WAYLAND:
172 wc_platform = wayland_platform_create();
173 break;
174 #endif
175 #ifdef WAFFLE_HAS_X11_EGL
176 case WAFFLE_PLATFORM_X11_EGL:
177 wc_platform = xegl_platform_create();
178 break;
179 #endif
180 #ifdef WAFFLE_HAS_GBM
181 case WAFFLE_PLATFORM_GBM:
182 wc_platform = wgbm_platform_create();
183 break;
184 #endif
185 #ifdef WAFFLE_HAS_WGL
186 case WAFFLE_PLATFORM_WGL:
187 wc_platform = wgl_platform_create();
188 break;
189 #endif
190 #ifdef WAFFLE_HAS_NACL
191 case WAFFLE_PLATFORM_NACL:
192 wc_platform = nacl_platform_create();
193 break;
194 #endif
195 #ifdef WAFFLE_HAS_SURFACELESS_EGL
196 case WAFFLE_PLATFORM_SURFACELESS_EGL:
197 wc_platform = sl_platform_create();
198 break;
199 #endif
200 default:
201 assert(false);
202 return NULL;
203 }
204
205 if (wc_platform)
206 wc_platform->waffle_platform = waffle_platform;
207
208 return wc_platform;
209 }
210
211 WAFFLE_API bool
waffle_init(const int32_t * attrib_list)212 waffle_init(const int32_t *attrib_list)
213 {
214 bool ok = true;
215 int platform;
216
217 wcore_error_reset();
218
219 if (api_platform) {
220 wcore_error(WAFFLE_ERROR_ALREADY_INITIALIZED);
221 return false;
222 }
223
224 ok &= waffle_init_parse_attrib_list(attrib_list, &platform);
225 if (!ok)
226 return false;
227
228 api_platform = waffle_init_create_platform(platform);
229 if (!api_platform)
230 return false;
231
232 return true;
233 }
234
235 WAFFLE_API bool
waffle_teardown(void)236 waffle_teardown(void)
237 {
238 bool ok = true;
239
240 wcore_error_reset();
241
242 if (!api_platform) {
243 wcore_error(WAFFLE_ERROR_NOT_INITIALIZED);
244 return false;
245 }
246
247 ok &= api_platform->vtbl->destroy(api_platform);
248 if (!ok)
249 return false;
250
251 api_platform = NULL;
252 return true;
253 }
254