[sdl_omap.git] / src / video / dc / SDL_dcvideo.c

/*
    SDL - Simple DirectMedia Layer
    Copyright (C) 1997-2009 Sam Lantinga

    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
    License as published by the Free Software Foundation; either
    version 2.1 of the License, or (at your option) any later version.

    This library is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    Lesser General Public License for more details.

    You should have received a copy of the GNU Lesser General Public
    License along with this library; if not, write to the Free Software
    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

    Sam Lantinga
    slouken@libsdl.org
*/
#include "SDL_config.h"

#include "SDL_video.h"
#include "SDL_mouse.h"
#include "../SDL_sysvideo.h"
#include "../SDL_pixels_c.h"
#include "../../events/SDL_events_c.h"

#include "SDL_dcvideo.h"
#include "SDL_dcevents_c.h"
#include "SDL_dcmouse_c.h"

#include <dc/video.h>
#include <dc/pvr.h>


/* Initialization/Query functions */
static int DC_VideoInit(_THIS, SDL_PixelFormat *vformat);
static SDL_Rect **DC_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags);
static SDL_Surface *DC_SetVideoMode(_THIS, SDL_Surface *current, int width, int height, int bpp, Uint32 flags);
static int DC_SetColors(_THIS, int firstcolor, int ncolors, SDL_Color *colors);
static void DC_VideoQuit(_THIS);

/* Hardware surface functions */
static int DC_AllocHWSurface(_THIS, SDL_Surface *surface);
static int DC_LockHWSurface(_THIS, SDL_Surface *surface);
static void DC_UnlockHWSurface(_THIS, SDL_Surface *surface);
static void DC_FreeHWSurface(_THIS, SDL_Surface *surface);
static int DC_FlipHWSurface(_THIS, SDL_Surface *surface);

/* etc. */
static void DC_UpdateRects(_THIS, int numrects, SDL_Rect *rects);

/* OpenGL */
#if SDL_VIDEO_OPENGL
static void *DC_GL_GetProcAddress(_THIS, const char *proc);
static int DC_GL_LoadLibrary(_THIS, const char *path);
static int DC_GL_GetAttribute(_THIS, SDL_GLattr attrib, int* value);
static void DC_GL_SwapBuffers(_THIS);
#endif

/* DC driver bootstrap functions */

static int DC_Available(void)
{
	return 1;
}

static void DC_DeleteDevice(SDL_VideoDevice *device)
{
	SDL_free(device->hidden);
	SDL_free(device);
}

static SDL_VideoDevice *DC_CreateDevice(int devindex)
{
	SDL_VideoDevice *device;

	/* Initialize all variables that we clean on shutdown */
	device = (SDL_VideoDevice *)SDL_malloc(sizeof(SDL_VideoDevice));
	if ( device ) {
		SDL_memset(device, 0, (sizeof *device));
		device->hidden = (struct SDL_PrivateVideoData *)
				SDL_malloc((sizeof *device->hidden));
	}
	if ( (device == NULL) || (device->hidden == NULL) ) {
		SDL_OutOfMemory();
		if ( device ) {
			SDL_free(device);
		}
		return(0);
	}
	SDL_memset(device->hidden, 0, (sizeof *device->hidden));

	/* Set the function pointers */
	device->VideoInit = DC_VideoInit;
	device->ListModes = DC_ListModes;
	device->SetVideoMode = DC_SetVideoMode;
	device->CreateYUVOverlay = NULL;
	device->SetColors = DC_SetColors;
	device->UpdateRects = DC_UpdateRects;
	device->VideoQuit = DC_VideoQuit;
	device->AllocHWSurface = DC_AllocHWSurface;
	device->CheckHWBlit = NULL;
	device->FillHWRect = NULL;
	device->SetHWColorKey = NULL;
	device->SetHWAlpha = NULL;
	device->LockHWSurface = DC_LockHWSurface;
	device->UnlockHWSurface = DC_UnlockHWSurface;
	device->FlipHWSurface = DC_FlipHWSurface;
	device->FreeHWSurface = DC_FreeHWSurface;
#if SDL_VIDEO_OPENGL
	device->GL_LoadLibrary = DC_GL_LoadLibrary;
	device->GL_GetProcAddress = DC_GL_GetProcAddress;
	device->GL_GetAttribute = DC_GL_GetAttribute;
	device->GL_MakeCurrent = NULL;
	device->GL_SwapBuffers = DC_GL_SwapBuffers;
#endif
	device->SetCaption = NULL;
	device->SetIcon = NULL;
	device->IconifyWindow = NULL;
	device->GrabInput = NULL;
	device->GetWMInfo = NULL;
	device->InitOSKeymap = DC_InitOSKeymap;
	device->PumpEvents = DC_PumpEvents;

	device->free = DC_DeleteDevice;

	return device;
}

VideoBootStrap DC_bootstrap = {
	"dcvideo", "Dreamcast Video",
	DC_Available, DC_CreateDevice
};


int DC_VideoInit(_THIS, SDL_PixelFormat *vformat)
{
	/* Determine the screen depth (use default 16-bit depth) */
	/* we change this during the SDL_SetVideoMode implementation... */
	vformat->BitsPerPixel = 16;
	vformat->Rmask = 0x0000f800;
	vformat->Gmask = 0x000007e0;
	vformat->Bmask = 0x0000001f;

	/* We're done! */
	return(0);
}

const static SDL_Rect
	RECT_800x600 = {0,0,800,600},
	RECT_640x480 = {0,0,640,480},
	RECT_320x240 = {0,0,320,240};
const static SDL_Rect *vid_modes[] = {
	&RECT_800x600,
	&RECT_640x480,
	&RECT_320x240,
	NULL
};

SDL_Rect **DC_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags)
{
	switch(format->BitsPerPixel) {
	case 15:
	case 16:
		return &vid_modes;
	case 32:
		if (!(flags & SDL_OPENGL))
		return &vid_modes;
	default:
		return NULL;
	}
//	return (SDL_Rect **) -1;
}

pvr_init_params_t params = {
        /* Enable opaque and translucent polygons with size 16 */
        { PVR_BINSIZE_16, PVR_BINSIZE_0, PVR_BINSIZE_16, PVR_BINSIZE_0, PVR_BINSIZE_16 },

        /* Vertex buffer size */
        512*1024
};

#if SDL_VIDEO_OPENGL
static int pvr_inited;
#endif

SDL_Surface *DC_SetVideoMode(_THIS, SDL_Surface *current,
				int width, int height, int bpp, Uint32 flags)
{
	int disp_mode,pixel_mode,pitch;
	Uint32 Rmask, Gmask, Bmask;

	if (width==320 && height==240) disp_mode=DM_320x240;
	else if (width==640 && height==480) disp_mode=DM_640x480;
	else if (width==800 && height==600) disp_mode=DM_800x608;
	else {
		SDL_SetError("Couldn't find requested mode in list");
		return(NULL);
	}

	switch(bpp) {
	case 15: pixel_mode = PM_RGB555; pitch = width*2;
		/* 5-5-5 */
		Rmask = 0x00007c00;
		Gmask = 0x000003e0;
		Bmask = 0x0000001f;
		break;
	case 16: pixel_mode = PM_RGB565; pitch = width*2;
		/* 5-6-5 */
		Rmask = 0x0000f800;
		Gmask = 0x000007e0;
		Bmask = 0x0000001f;
		break;
	case 24: bpp = 32;
	case 32: pixel_mode = PM_RGB888; pitch = width*4;
		Rmask = 0x00ff0000;
		Gmask = 0x0000ff00;
		Bmask = 0x000000ff;
#if SDL_VIDEO_OPENGL
		if (!(flags & SDL_OPENGL))
#endif
		break;
	default:
		SDL_SetError("Couldn't find requested mode in list");
		return(NULL);
	}

//  if ( bpp != current->format->BitsPerPixel ) {
	if ( ! SDL_ReallocFormat(current, bpp, Rmask, Gmask, Bmask, 0) ) {
		return(NULL);
	}
//  }

	/* Set up the new mode framebuffer */
	current->flags = (SDL_FULLSCREEN|SDL_HWSURFACE);
	current->w = width;
	current->h = height;
	current->pitch = pitch;

#if SDL_VIDEO_OPENGL
	if (pvr_inited) {
		pvr_inited = 0;
		pvr_shutdown();
	}
#endif

	vid_set_mode(disp_mode,pixel_mode);

	current->pixels = vram_s;

#if SDL_VIDEO_OPENGL
	if (flags & SDL_OPENGL) {
		this->gl_config.driver_loaded = 1;
		current->flags = SDL_FULLSCREEN | SDL_OPENGL;
		current->pixels = NULL;
		pvr_inited = 1;
		pvr_init(&params);
		glKosInit();
		glKosBeginFrame();
	} else
#endif
	if (flags | SDL_DOUBLEBUF) {
		current->flags |= SDL_DOUBLEBUF;
		current->pixels = (void*)((int)current->pixels | 0x400000);
	}

	/* We're done */
	return(current);
}

/* We don't actually allow hardware surfaces other than the main one */
static int DC_AllocHWSurface(_THIS, SDL_Surface *surface)
{
	return(-1);
}
static void DC_FreeHWSurface(_THIS, SDL_Surface *surface)
{
	return;
}

/* We need to wait for vertical retrace on page flipped displays */
static int DC_LockHWSurface(_THIS, SDL_Surface *surface)
{
	return(0);
}

static void DC_UnlockHWSurface(_THIS, SDL_Surface *surface)
{
	return;
}

static int DC_FlipHWSurface(_THIS, SDL_Surface *surface)
{
	if (surface->flags & SDL_DOUBLEBUF) {
		vid_set_start((int)surface->pixels & 0xffffff);
		surface->pixels = (void*)((int)surface->pixels ^ 0x400000);
	}
	return(0);
}

static void DC_UpdateRects(_THIS, int numrects, SDL_Rect *rects)
{
	/* do nothing. */
}

static int DC_SetColors(_THIS, int firstcolor, int ncolors, SDL_Color *colors)
{
	/* do nothing of note. */
	return(1);
}

/* Note:  If we are terminated, this could be called in the middle of
   another SDL video routine -- notably UpdateRects.
*/
static void DC_VideoQuit(_THIS)
{
#if SDL_VIDEO_OPENGL
	if (pvr_inited) {
		pvr_inited = 0;
		pvr_shutdown();
	}
#endif
}

#if SDL_VIDEO_OPENGL

void dmyfunc(void) {}

typedef void (*funcptr)();
const static struct {
	char *name;
	funcptr addr;
} glfuncs[] = {
#define	DEF(func)	{#func,&func}
	DEF(glBegin),
	DEF(glBindTexture),
	DEF(glBlendFunc),
	DEF(glColor4f),
//	DEF(glCopyImageID),
	DEF(glDisable),
	DEF(glEnable),
	DEF(glEnd),
	DEF(glFlush),
	DEF(glGenTextures),
	DEF(glGetString),
	DEF(glLoadIdentity),
	DEF(glMatrixMode),
	DEF(glOrtho),
	DEF(glPixelStorei),
//	DEF(glPopAttrib),
//	DEF(glPopClientAttrib),
	{"glPopAttrib",&dmyfunc},
	{"glPopClientAttrib",&dmyfunc},
	DEF(glPopMatrix),
//	DEF(glPushAttrib),
//	DEF(glPushClientAttrib),
	{"glPushAttrib",&dmyfunc},
	{"glPushClientAttrib",&dmyfunc},
	DEF(glPushMatrix),
	DEF(glTexCoord2f),
	DEF(glTexEnvf),
	DEF(glTexImage2D),
	DEF(glTexParameteri),
	DEF(glTexSubImage2D),
	DEF(glVertex2i),
	DEF(glViewport),
#undef	DEF
};

static void *DC_GL_GetProcAddress(_THIS, const char *proc)
{
	void *ret;
	int i;

	ret = glKosGetProcAddress(proc);
	if (ret) return ret;

	for(i=0;i<sizeof(glfuncs)/sizeof(glfuncs[0]);i++) {
		if (SDL_strcmp(proc,glfuncs[i].name)==0) return glfuncs[i].addr;
	}

	return NULL;
}

static int DC_GL_LoadLibrary(_THIS, const char *path)
{
	this->gl_config.driver_loaded = 1;

	return 0;
}

static int DC_GL_GetAttribute(_THIS, SDL_GLattr attrib, int* value)
{
	GLenum mesa_attrib;
	int val;

	switch(attrib) {
	case SDL_GL_RED_SIZE:
		val = 5;
		break;
	case SDL_GL_GREEN_SIZE:
		val = 6;
		break;
	case SDL_GL_BLUE_SIZE:
		val = 5;
		break;
	case SDL_GL_ALPHA_SIZE:
		val = 0;
		break;
	case SDL_GL_DOUBLEBUFFER:
		val = 1;
		break;
	case SDL_GL_DEPTH_SIZE:
		val = 16; /* or 32? */
		break;
	case SDL_GL_STENCIL_SIZE:
		val = 0;
		break;
	case SDL_GL_ACCUM_RED_SIZE:
		val = 0;
		break;
	case SDL_GL_ACCUM_GREEN_SIZE:
		val = 0;
	case SDL_GL_ACCUM_BLUE_SIZE:
		val = 0;
		break;
	case SDL_GL_ACCUM_ALPHA_SIZE:
		val = 0;
		break;
	default :
		return -1;
	}
	*value = val;
	return 0;
}

static void DC_GL_SwapBuffers(_THIS)
{
	glKosFinishFrame();
	glKosBeginFrame();
}
#endif
Commit	Line	Data
e14743d1	1	/*
	2	SDL - Simple DirectMedia Layer
	3	Copyright (C) 1997-2009 Sam Lantinga
	4
	5	This library is free software; you can redistribute it and/or
	6	modify it under the terms of the GNU Lesser General Public
	7	License as published by the Free Software Foundation; either
	8	version 2.1 of the License, or (at your option) any later version.
	9
	10	This library is distributed in the hope that it will be useful,
	11	but WITHOUT ANY WARRANTY; without even the implied warranty of
	12	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	13	Lesser General Public License for more details.
	14
	15	You should have received a copy of the GNU Lesser General Public
	16	License along with this library; if not, write to the Free Software
	17	Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
	18
	19	Sam Lantinga
	20	slouken@libsdl.org
	21	*/
	22	#include "SDL_config.h"
	23
	24	#include "SDL_video.h"
	25	#include "SDL_mouse.h"
	26	#include "../SDL_sysvideo.h"
	27	#include "../SDL_pixels_c.h"
	28	#include "../../events/SDL_events_c.h"
	29
	30	#include "SDL_dcvideo.h"
	31	#include "SDL_dcevents_c.h"
	32	#include "SDL_dcmouse_c.h"
	33
	34	#include <dc/video.h>
	35	#include <dc/pvr.h>
	36
	37
	38	/* Initialization/Query functions */
	39	static int DC_VideoInit(_THIS, SDL_PixelFormat *vformat);
	40	static SDL_Rect *DC_ListModes(_THIS, SDL_PixelFormat format, Uint32 flags);
	41	static SDL_Surface DC_SetVideoMode(_THIS, SDL_Surface current, int width, int height, int bpp, Uint32 flags);
	42	static int DC_SetColors(_THIS, int firstcolor, int ncolors, SDL_Color *colors);
	43	static void DC_VideoQuit(_THIS);
	44
	45	/* Hardware surface functions */
	46	static int DC_AllocHWSurface(_THIS, SDL_Surface *surface);
	47	static int DC_LockHWSurface(_THIS, SDL_Surface *surface);
	48	static void DC_UnlockHWSurface(_THIS, SDL_Surface *surface);
	49	static void DC_FreeHWSurface(_THIS, SDL_Surface *surface);
	50	static int DC_FlipHWSurface(_THIS, SDL_Surface *surface);
	51
	52	/* etc. */
	53	static void DC_UpdateRects(_THIS, int numrects, SDL_Rect *rects);
	54
	55	/* OpenGL */
	56	#if SDL_VIDEO_OPENGL
	57	static void DC_GL_GetProcAddress(_THIS, const char proc);
	58	static int DC_GL_LoadLibrary(_THIS, const char *path);
	59	static int DC_GL_GetAttribute(_THIS, SDL_GLattr attrib, int* value);
	60	static void DC_GL_SwapBuffers(_THIS);
	61	#endif
	62
	63	/* DC driver bootstrap functions */
	64
65	static int DC_Available(void)
66	{
67	return 1;
68	}
69
70	static void DC_DeleteDevice(SDL_VideoDevice *device)
71	{
72	SDL_free(device->hidden);
73	SDL_free(device);
74	}
75
76	static SDL_VideoDevice *DC_CreateDevice(int devindex)
77	{
78	SDL_VideoDevice *device;
79
80	/* Initialize all variables that we clean on shutdown */
81	device = (SDL_VideoDevice *)SDL_malloc(sizeof(SDL_VideoDevice));
82	if ( device ) {
83	SDL_memset(device, 0, (sizeof *device));
84	device->hidden = (struct SDL_PrivateVideoData *)
85	SDL_malloc((sizeof *device->hidden));
86	}
87	if ( (device == NULL) \|\| (device->hidden == NULL) ) {
88	SDL_OutOfMemory();
89	if ( device ) {
90	SDL_free(device);
91	}
92	return(0);
93	}
94	SDL_memset(device->hidden, 0, (sizeof *device->hidden));
95
96	/* Set the function pointers */
97	device->VideoInit = DC_VideoInit;
98	device->ListModes = DC_ListModes;
99	device->SetVideoMode = DC_SetVideoMode;
100	device->CreateYUVOverlay = NULL;
101	device->SetColors = DC_SetColors;
102	device->UpdateRects = DC_UpdateRects;
103	device->VideoQuit = DC_VideoQuit;
104	device->AllocHWSurface = DC_AllocHWSurface;
105	device->CheckHWBlit = NULL;
106	device->FillHWRect = NULL;
107	device->SetHWColorKey = NULL;
108	device->SetHWAlpha = NULL;
109	device->LockHWSurface = DC_LockHWSurface;
110	device->UnlockHWSurface = DC_UnlockHWSurface;
111	device->FlipHWSurface = DC_FlipHWSurface;
112	device->FreeHWSurface = DC_FreeHWSurface;
113	#if SDL_VIDEO_OPENGL
114	device->GL_LoadLibrary = DC_GL_LoadLibrary;
115	device->GL_GetProcAddress = DC_GL_GetProcAddress;
116	device->GL_GetAttribute = DC_GL_GetAttribute;
117	device->GL_MakeCurrent = NULL;
118	device->GL_SwapBuffers = DC_GL_SwapBuffers;
119	#endif
120	device->SetCaption = NULL;
121	device->SetIcon = NULL;
122	device->IconifyWindow = NULL;
123	device->GrabInput = NULL;
124	device->GetWMInfo = NULL;
125	device->InitOSKeymap = DC_InitOSKeymap;
126	device->PumpEvents = DC_PumpEvents;
127
128	device->free = DC_DeleteDevice;
129
130	return device;
131	}
132
133	VideoBootStrap DC_bootstrap = {
134	"dcvideo", "Dreamcast Video",
135	DC_Available, DC_CreateDevice
136	};
137
138
139	int DC_VideoInit(_THIS, SDL_PixelFormat *vformat)
140	{
141	/* Determine the screen depth (use default 16-bit depth) */
142	/* we change this during the SDL_SetVideoMode implementation... */
143	vformat->BitsPerPixel = 16;
144	vformat->Rmask = 0x0000f800;
145	vformat->Gmask = 0x000007e0;
146	vformat->Bmask = 0x0000001f;
147
148	/* We're done! */
149	return(0);
150	}
151
152	const static SDL_Rect
153	RECT_800x600 = {0,0,800,600},
154	RECT_640x480 = {0,0,640,480},
155	RECT_320x240 = {0,0,320,240};
156	const static SDL_Rect *vid_modes[] = {
157	&RECT_800x600,
158	&RECT_640x480,
159	&RECT_320x240,
160	NULL
161	};
162
163	SDL_Rect *DC_ListModes(_THIS, SDL_PixelFormat format, Uint32 flags)
164	{
165	switch(format->BitsPerPixel) {
166	case 15:
167	case 16:
168	return &vid_modes;
169	case 32:
170	if (!(flags & SDL_OPENGL))
171	return &vid_modes;
172	default:
173	return NULL;
174	}
175	// return (SDL_Rect **) -1;
176	}
177
178	pvr_init_params_t params = {
179	/* Enable opaque and translucent polygons with size 16 */
180	{ PVR_BINSIZE_16, PVR_BINSIZE_0, PVR_BINSIZE_16, PVR_BINSIZE_0, PVR_BINSIZE_16 },
181
182	/* Vertex buffer size */
183	512*1024
184	};
185
186	#if SDL_VIDEO_OPENGL
187	static int pvr_inited;
188	#endif
189
190	SDL_Surface DC_SetVideoMode(_THIS, SDL_Surface current,
191	int width, int height, int bpp, Uint32 flags)
192	{
193	int disp_mode,pixel_mode,pitch;
194	Uint32 Rmask, Gmask, Bmask;
195
196	if (width==320 && height==240) disp_mode=DM_320x240;
197	else if (width==640 && height==480) disp_mode=DM_640x480;
198	else if (width==800 && height==600) disp_mode=DM_800x608;
199	else {
200	SDL_SetError("Couldn't find requested mode in list");
201	return(NULL);
202	}
203
204	switch(bpp) {
205	case 15: pixel_mode = PM_RGB555; pitch = width*2;
206	/* 5-5-5 */
207	Rmask = 0x00007c00;
208	Gmask = 0x000003e0;
209	Bmask = 0x0000001f;
210	break;
211	case 16: pixel_mode = PM_RGB565; pitch = width*2;
212	/* 5-6-5 */
213	Rmask = 0x0000f800;
214	Gmask = 0x000007e0;
215	Bmask = 0x0000001f;
216	break;
217	case 24: bpp = 32;
218	case 32: pixel_mode = PM_RGB888; pitch = width*4;
219	Rmask = 0x00ff0000;
220	Gmask = 0x0000ff00;
221	Bmask = 0x000000ff;
222	#if SDL_VIDEO_OPENGL
223	if (!(flags & SDL_OPENGL))
224	#endif
225	break;
226	default:
227	SDL_SetError("Couldn't find requested mode in list");
228	return(NULL);
229	}
230
231	// if ( bpp != current->format->BitsPerPixel ) {
232	if ( ! SDL_ReallocFormat(current, bpp, Rmask, Gmask, Bmask, 0) ) {
233	return(NULL);
234	}
235	// }
236
237	/* Set up the new mode framebuffer */
238	current->flags = (SDL_FULLSCREEN\|SDL_HWSURFACE);
239	current->w = width;
240	current->h = height;
241	current->pitch = pitch;
242
243	#if SDL_VIDEO_OPENGL
244	if (pvr_inited) {
245	pvr_inited = 0;
246	pvr_shutdown();
247	}
248	#endif
249
250	vid_set_mode(disp_mode,pixel_mode);
251
252	current->pixels = vram_s;
253
254	#if SDL_VIDEO_OPENGL
255	if (flags & SDL_OPENGL) {
256	this->gl_config.driver_loaded = 1;
257	current->flags = SDL_FULLSCREEN \| SDL_OPENGL;
258	current->pixels = NULL;
259	pvr_inited = 1;
260	pvr_init(&params);
261	glKosInit();
262	glKosBeginFrame();
263	} else
264	#endif
265	if (flags \| SDL_DOUBLEBUF) {
266	current->flags \|= SDL_DOUBLEBUF;
267	current->pixels = (void*)((int)current->pixels \| 0x400000);
268	}
269
270	/* We're done */
271	return(current);
272	}
273
274	/* We don't actually allow hardware surfaces other than the main one */
275	static int DC_AllocHWSurface(_THIS, SDL_Surface *surface)
276	{
277	return(-1);
278	}
279	static void DC_FreeHWSurface(_THIS, SDL_Surface *surface)
280	{
281	return;
282	}
283
284	/* We need to wait for vertical retrace on page flipped displays */
285	static int DC_LockHWSurface(_THIS, SDL_Surface *surface)
286	{
287	return(0);
288	}
289
290	static void DC_UnlockHWSurface(_THIS, SDL_Surface *surface)
291	{
292	return;
293	}
294
295	static int DC_FlipHWSurface(_THIS, SDL_Surface *surface)
296	{
297	if (surface->flags & SDL_DOUBLEBUF) {
298	vid_set_start((int)surface->pixels & 0xffffff);
299	surface->pixels = (void*)((int)surface->pixels ^ 0x400000);
300	}
301	return(0);
302	}
303
304	static void DC_UpdateRects(_THIS, int numrects, SDL_Rect *rects)
305	{
306	/* do nothing. */
307	}
308
309	static int DC_SetColors(_THIS, int firstcolor, int ncolors, SDL_Color *colors)
310	{
311	/* do nothing of note. */
312	return(1);
313	}
314
315	/* Note: If we are terminated, this could be called in the middle of
316	another SDL video routine -- notably UpdateRects.
317	*/
318	static void DC_VideoQuit(_THIS)
319	{
320	#if SDL_VIDEO_OPENGL
321	if (pvr_inited) {
322	pvr_inited = 0;
323	pvr_shutdown();
324	}
325	#endif
326	}
327
328	#if SDL_VIDEO_OPENGL
329
330	void dmyfunc(void) {}
331
332	typedef void (*funcptr)();
333	const static struct {
334	char *name;
335	funcptr addr;
336	} glfuncs[] = {
337	#define DEF(func) {#func,&func}
338	DEF(glBegin),
339	DEF(glBindTexture),
340	DEF(glBlendFunc),
341	DEF(glColor4f),
342	// DEF(glCopyImageID),
343	DEF(glDisable),
344	DEF(glEnable),
345	DEF(glEnd),
346	DEF(glFlush),
347	DEF(glGenTextures),
348	DEF(glGetString),
349	DEF(glLoadIdentity),
350	DEF(glMatrixMode),
351	DEF(glOrtho),
352	DEF(glPixelStorei),
353	// DEF(glPopAttrib),
354	// DEF(glPopClientAttrib),
355	{"glPopAttrib",&dmyfunc},
356	{"glPopClientAttrib",&dmyfunc},
357	DEF(glPopMatrix),
358	// DEF(glPushAttrib),
359	// DEF(glPushClientAttrib),
360	{"glPushAttrib",&dmyfunc},
361	{"glPushClientAttrib",&dmyfunc},
362	DEF(glPushMatrix),
363	DEF(glTexCoord2f),
364	DEF(glTexEnvf),
365	DEF(glTexImage2D),
366	DEF(glTexParameteri),
367	DEF(glTexSubImage2D),
368	DEF(glVertex2i),
369	DEF(glViewport),
370	#undef DEF
371	};
372
373	static void DC_GL_GetProcAddress(_THIS, const char proc)
374	{
375	void *ret;
376	int i;
377
378	ret = glKosGetProcAddress(proc);
379	if (ret) return ret;
380
381	for(i=0;i<sizeof(glfuncs)/sizeof(glfuncs[0]);i++) {
382	if (SDL_strcmp(proc,glfuncs[i].name)==0) return glfuncs[i].addr;
383	}
384
385	return NULL;
386	}
387
388	static int DC_GL_LoadLibrary(_THIS, const char *path)
389	{
390	this->gl_config.driver_loaded = 1;
391
392	return 0;
393	}
394
395	static int DC_GL_GetAttribute(_THIS, SDL_GLattr attrib, int* value)
396	{
397	GLenum mesa_attrib;
398	int val;
399
400	switch(attrib) {
401	case SDL_GL_RED_SIZE:
402	val = 5;
403	break;
404	case SDL_GL_GREEN_SIZE:
405	val = 6;
406	break;
407	case SDL_GL_BLUE_SIZE:
408	val = 5;
409	break;
410	case SDL_GL_ALPHA_SIZE:
411	val = 0;
412	break;
413	case SDL_GL_DOUBLEBUFFER:
414	val = 1;
415	break;
416	case SDL_GL_DEPTH_SIZE:
417	val = 16; /* or 32? */
418	break;
419	case SDL_GL_STENCIL_SIZE:
420	val = 0;
421	break;
422	case SDL_GL_ACCUM_RED_SIZE:
423	val = 0;
424	break;
425	case SDL_GL_ACCUM_GREEN_SIZE:
426	val = 0;
427	case SDL_GL_ACCUM_BLUE_SIZE:
428	val = 0;
429	break;
430	case SDL_GL_ACCUM_ALPHA_SIZE:
431	val = 0;
432	break;
433	default :
434	return -1;
435	}
436	*value = val;
437	return 0;
438	}
439
440	static void DC_GL_SwapBuffers(_THIS)
441	{
442	glKosFinishFrame();
443	glKosBeginFrame();
444	}
445	#endif