1 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
2 * Mupen64plus-core - api/vidext.c *
3 * Mupen64Plus homepage: http://code.google.com/p/mupen64plus/ *
4 * Copyright (C) 2009 Richard Goedeken *
5 * *
6 * This program is free software; you can redistribute it and/or modify *
7 * it under the terms of the GNU General Public License as published by *
8 * the Free Software Foundation; either version 2 of the License, or *
9 * (at your option) any later version. *
10 * *
11 * This program is distributed in the hope that it will be useful, *
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
14 * GNU General Public License for more details. *
15 * *
16 * You should have received a copy of the GNU General Public License *
17 * along with this program; if not, write to the *
18 * Free Software Foundation, Inc., *
19 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. *
20 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
21
22 /* This file contains the Core video extension functions which will be exported
23 * outside of the core library.
24 */
25
26 #include <stdlib.h>
27 #include <string.h>
28
29 #include <boolean.h>
30
31 int retro_return(bool a);
32
33 #define M64P_CORE_PROTOTYPES 1
34 #include "m64p_types.h"
35 #include "m64p_vidext.h"
36 #include "vidext.h"
37 #include "callbacks.h"
38
39 #include <libretro.h>
40 #if defined(HAVE_OPENGL) || defined(HAVE_OPENGLES)
41 #include <glsm/glsmsym.h>
42 #endif
43
44 /* local variables */
45 static m64p_video_extension_functions l_ExternalVideoFuncTable = {10, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL};
46 static int l_VideoExtensionActive = 0;
47 static int l_VideoOutputActive = 0;
48
49 /* global function for use by frontend.c */
OverrideVideoFunctions(m64p_video_extension_functions * VideoFunctionStruct)50 m64p_error OverrideVideoFunctions(m64p_video_extension_functions *VideoFunctionStruct)
51 {
52 /* check input data */
53 if (VideoFunctionStruct == NULL)
54 return M64ERR_INPUT_ASSERT;
55 if (VideoFunctionStruct->Functions < 11)
56 return M64ERR_INPUT_INVALID;
57
58 /* disable video extension if any of the function pointers are NULL */
59 if (VideoFunctionStruct->VidExtFuncInit == NULL ||
60 VideoFunctionStruct->VidExtFuncQuit == NULL ||
61 VideoFunctionStruct->VidExtFuncListModes == NULL ||
62 VideoFunctionStruct->VidExtFuncSetMode == NULL ||
63 VideoFunctionStruct->VidExtFuncGLGetProc == NULL ||
64 VideoFunctionStruct->VidExtFuncGLSetAttr == NULL ||
65 VideoFunctionStruct->VidExtFuncGLGetAttr == NULL ||
66 VideoFunctionStruct->VidExtFuncGLSwapBuf == NULL ||
67 VideoFunctionStruct->VidExtFuncSetCaption == NULL ||
68 VideoFunctionStruct->VidExtFuncToggleFS == NULL ||
69 VideoFunctionStruct->VidExtFuncResizeWindow == NULL)
70 {
71 l_ExternalVideoFuncTable.Functions = 11;
72 memset(&l_ExternalVideoFuncTable.VidExtFuncInit, 0, 11 * sizeof(void *));
73 l_VideoExtensionActive = 0;
74 return M64ERR_SUCCESS;
75 }
76
77 /* otherwise copy in the override function pointers */
78 memcpy(&l_ExternalVideoFuncTable, VideoFunctionStruct, sizeof(m64p_video_extension_functions));
79 l_VideoExtensionActive = 1;
80 return M64ERR_SUCCESS;
81 }
82
VidExt_InFullscreenMode(void)83 int VidExt_InFullscreenMode(void)
84 {
85 return 1;
86 }
87
VidExt_VideoRunning(void)88 int VidExt_VideoRunning(void)
89 {
90 return l_VideoOutputActive;
91 }
92
VidExt_SetCaption(const char * Title)93 EXPORT m64p_error CALL VidExt_SetCaption(const char *Title)
94 {
95 return M64ERR_SUCCESS;
96 }
97
VidExt_ToggleFullScreen(void)98 EXPORT m64p_error CALL VidExt_ToggleFullScreen(void)
99 {
100 /* TODO/FIXME - should just do a context reset here. */
101 return M64ERR_SUCCESS;
102 }
103
VidExt_GL_SetAttribute(m64p_GLattr Attr,int Value)104 EXPORT m64p_error CALL VidExt_GL_SetAttribute(m64p_GLattr Attr, int Value)
105 {
106 return M64ERR_SUCCESS;
107 }
108
VidExt_Init(void)109 EXPORT m64p_error CALL VidExt_Init(void)
110 {
111 /* TODO/FIXME - implement. */
112 return M64ERR_SUCCESS;
113 }
114
VidExt_Quit(void)115 EXPORT m64p_error CALL VidExt_Quit(void)
116 {
117 /* TODO/FIXME - implement. */
118 return M64ERR_SUCCESS;
119 }
120
VidExt_SetVideoMode(int Width,int Height,int BitsPerPixel,m64p_video_mode ScreenMode,m64p_video_flags Flags)121 EXPORT m64p_error CALL VidExt_SetVideoMode(int Width, int Height, int BitsPerPixel,
122 m64p_video_mode ScreenMode, m64p_video_flags Flags)
123 {
124 /* TODO/FIXME - implement. */
125 return M64ERR_SUCCESS;
126 }
127
VidExt_GL_GetProcAddress(const char * Proc)128 EXPORT void * CALL VidExt_GL_GetProcAddress(const char* Proc)
129 {
130 #if defined(HAVE_OPENGL) || defined(HAVE_OPENGLES)
131 glsm_ctx_proc_address_t proc_info;
132 proc_info.addr = NULL;
133 if (!glsm_ctl(GLSM_CTL_PROC_ADDRESS_GET, NULL))
134 return NULL;
135 return proc_info.addr(Proc);
136 #else
137 return NULL;
138 #endif
139 }
140
VidExt_GL_SwapBuffers(void)141 EXPORT m64p_error CALL VidExt_GL_SwapBuffers(void)
142 {
143 retro_return(true);
144 return M64ERR_SUCCESS;
145 }
146
VidExt_ListFullscreenModes(m64p_2d_size * SizeArray,int * NumSizes)147 EXPORT m64p_error CALL VidExt_ListFullscreenModes(m64p_2d_size *SizeArray, int *NumSizes)
148 {
149 #if 0
150 /* TODO/FIXME - implement */
151 i = 0;
152 while (i < *NumSizes && modes[i] != NULL)
153 {
154 SizeArray[i].uiWidth = modes[i]->w;
155 SizeArray[i].uiHeight = modes[i]->h;
156 i++;
157 }
158
159 *NumSizes = i;
160 #endif
161
162 return M64ERR_SUCCESS;
163 }
164
VidExt_ResizeWindow(int Width,int Height)165 EXPORT m64p_error CALL VidExt_ResizeWindow(int Width, int Height)
166 {
167 /* TODO/FIXME - implement? */
168 return M64ERR_SUCCESS;
169 }
170