1
2/* Simple program -- figure out what kind of video display we have */
3
4#include <stdlib.h>
5#include <stdio.h>
6#include <stdlib.h>
7#include <string.h>
8
9#include "SDL.h"
10
11#define NUM_BLITS	10
12#define NUM_UPDATES	500
13
14#define FLAG_MASK	(SDL_HWSURFACE | SDL_FULLSCREEN | SDL_DOUBLEBUF | \
15                         SDL_SRCCOLORKEY | SDL_SRCALPHA | SDL_RLEACCEL  | \
16                         SDL_RLEACCELOK)
17
18void PrintFlags(Uint32 flags)
19{
20	printf("0x%8.8x", (flags & FLAG_MASK));
21	if ( flags & SDL_HWSURFACE ) {
22		printf(" SDL_HWSURFACE");
23	} else {
24		printf(" SDL_SWSURFACE");
25	}
26	if ( flags & SDL_FULLSCREEN ) {
27		printf(" | SDL_FULLSCREEN");
28	}
29	if ( flags & SDL_DOUBLEBUF ) {
30		printf(" | SDL_DOUBLEBUF");
31	}
32	if ( flags & SDL_SRCCOLORKEY ) {
33		printf(" | SDL_SRCCOLORKEY");
34	}
35	if ( flags & SDL_SRCALPHA ) {
36		printf(" | SDL_SRCALPHA");
37	}
38	if ( flags & SDL_RLEACCEL ) {
39		printf(" | SDL_RLEACCEL");
40	}
41	if ( flags & SDL_RLEACCELOK ) {
42		printf(" | SDL_RLEACCELOK");
43	}
44}
45
46int RunBlitTests(SDL_Surface *screen, SDL_Surface *bmp, int blitcount)
47{
48	int i, j;
49	int maxx;
50	int maxy;
51	SDL_Rect dst;
52
53	maxx = (int)screen->w - bmp->w + 1;
54	maxy = (int)screen->h - bmp->h + 1;
55	for ( i = 0; i < NUM_UPDATES; ++i ) {
56		for ( j = 0; j < blitcount; ++j ) {
57			if ( maxx ) {
58				dst.x = rand() % maxx;
59			} else {
60				dst.x = 0;
61			}
62			if ( maxy ) {
63				dst.y = rand() % maxy;
64			} else {
65				dst.y = 0;
66			}
67			dst.w = bmp->w;
68			dst.h = bmp->h;
69			SDL_BlitSurface(bmp, NULL, screen, &dst);
70		}
71		SDL_Flip(screen);
72	}
73
74	return i;
75}
76
77int RunModeTests(SDL_Surface *screen)
78{
79	Uint32 then, now;
80	Uint32 frames;
81	float seconds;
82	int i;
83	Uint8 r, g, b;
84	SDL_Surface *bmp, *bmpcc, *tmp;
85	SDL_Event event;
86
87	while ( SDL_PollEvent(&event) ) {
88		if ( event.type == SDL_KEYDOWN )
89			return 0;
90	}
91
92	/* First test fills and screen update speed */
93	printf("Running color fill and fullscreen update test\n");
94	then = SDL_GetTicks();
95	frames = 0;
96	for ( i = 0; i < 256; ++i ) {
97		r = i;
98		g = 0;
99		b = 0;
100		SDL_FillRect(screen, NULL, SDL_MapRGB(screen->format, r, g, b));
101		SDL_Flip(screen);
102		++frames;
103	}
104	for ( i = 0; i < 256; ++i ) {
105		r = 0;
106		g = i;
107		b = 0;
108		SDL_FillRect(screen, NULL, SDL_MapRGB(screen->format, r, g, b));
109		SDL_Flip(screen);
110		++frames;
111	}
112	for ( i = 0; i < 256; ++i ) {
113		r = 0;
114		g = 0;
115		b = i;
116		SDL_FillRect(screen, NULL, SDL_MapRGB(screen->format, r, g, b));
117		SDL_Flip(screen);
118		++frames;
119	}
120	now = SDL_GetTicks();
121	seconds = (float)(now - then) / 1000.0f;
122	if ( seconds > 0.0f ) {
123		printf("%d fills and flips in %2.2f seconds, %2.2f FPS\n", frames, seconds, (float)frames / seconds);
124	} else {
125		printf("%d fills and flips in zero seconds!n", frames);
126	}
127
128        /* clear the screen after fill test */
129        SDL_FillRect(screen, NULL, SDL_MapRGB(screen->format, 0, 0, 0));
130	SDL_Flip(screen);
131
132	while ( SDL_PollEvent(&event) ) {
133		if ( event.type == SDL_KEYDOWN )
134			return 0;
135	}
136
137        /* run the generic blit test */
138	bmp = SDL_LoadBMP("sample.bmp");
139	if ( ! bmp ) {
140		printf("Couldn't load sample.bmp: %s\n", SDL_GetError());
141		return 0;
142	}
143	printf("Running freshly loaded blit test: %dx%d at %d bpp, flags: ",
144		bmp->w, bmp->h, bmp->format->BitsPerPixel);
145	PrintFlags(bmp->flags);
146	printf("\n");
147	then = SDL_GetTicks();
148	frames = RunBlitTests(screen, bmp, NUM_BLITS);
149	now = SDL_GetTicks();
150	seconds = (float)(now - then) / 1000.0f;
151	if ( seconds > 0.0f ) {
152		printf("%d blits / %d updates in %2.2f seconds, %2.2f FPS\n", NUM_BLITS*frames, frames, seconds, (float)frames / seconds);
153	} else {
154		printf("%d blits / %d updates in zero seconds!\n", NUM_BLITS*frames, frames);
155	}
156
157        /* clear the screen after blit test */
158        SDL_FillRect(screen, NULL, SDL_MapRGB(screen->format, 0, 0, 0));
159	SDL_Flip(screen);
160
161	while ( SDL_PollEvent(&event) ) {
162		if ( event.type == SDL_KEYDOWN )
163			return 0;
164	}
165
166        /* run the colorkeyed blit test */
167	bmpcc = SDL_LoadBMP("sample.bmp");
168	if ( ! bmpcc ) {
169		printf("Couldn't load sample.bmp: %s\n", SDL_GetError());
170		return 0;
171	}
172	printf("Running freshly loaded cc blit test: %dx%d at %d bpp, flags: ",
173		bmpcc->w, bmpcc->h, bmpcc->format->BitsPerPixel);
174        SDL_SetColorKey(bmpcc, SDL_SRCCOLORKEY | SDL_RLEACCEL, *(Uint8 *)bmpcc->pixels);
175
176	PrintFlags(bmpcc->flags);
177	printf("\n");
178	then = SDL_GetTicks();
179	frames = RunBlitTests(screen, bmpcc, NUM_BLITS);
180	now = SDL_GetTicks();
181	seconds = (float)(now - then) / 1000.0f;
182	if ( seconds > 0.0f ) {
183		printf("%d cc blits / %d updates in %2.2f seconds, %2.2f FPS\n", NUM_BLITS*frames, frames, seconds, (float)frames / seconds);
184	} else {
185		printf("%d cc blits / %d updates in zero seconds!\n", NUM_BLITS*frames, frames);
186	}
187
188        /* clear the screen after cc blit test */
189        SDL_FillRect(screen, NULL, SDL_MapRGB(screen->format, 0, 0, 0));
190	SDL_Flip(screen);
191
192	while ( SDL_PollEvent(&event) ) {
193		if ( event.type == SDL_KEYDOWN )
194			return 0;
195	}
196
197        /* run the generic blit test */
198	tmp = bmp;
199	bmp = SDL_DisplayFormat(bmp);
200	SDL_FreeSurface(tmp);
201	if ( ! bmp ) {
202		printf("Couldn't convert sample.bmp: %s\n", SDL_GetError());
203		return 0;
204	}
205	printf("Running display format blit test: %dx%d at %d bpp, flags: ",
206		bmp->w, bmp->h, bmp->format->BitsPerPixel);
207	PrintFlags(bmp->flags);
208	printf("\n");
209	then = SDL_GetTicks();
210	frames = RunBlitTests(screen, bmp, NUM_BLITS);
211	now = SDL_GetTicks();
212	seconds = (float)(now - then) / 1000.0f;
213	if ( seconds > 0.0f ) {
214		printf("%d blits / %d updates in %2.2f seconds, %2.2f FPS\n", NUM_BLITS*frames, frames, seconds, (float)frames / seconds);
215	} else {
216		printf("%d blits / %d updates in zero seconds!\n", NUM_BLITS*frames, frames);
217	}
218
219        /* clear the screen after blit test */
220        SDL_FillRect(screen, NULL, SDL_MapRGB(screen->format, 0, 0, 0));
221	SDL_Flip(screen);
222
223	while ( SDL_PollEvent(&event) ) {
224		if ( event.type == SDL_KEYDOWN )
225			return 0;
226	}
227
228        /* run the colorkeyed blit test */
229	tmp = bmpcc;
230	bmpcc = SDL_DisplayFormat(bmpcc);
231	SDL_FreeSurface(tmp);
232	if ( ! bmpcc ) {
233		printf("Couldn't convert sample.bmp: %s\n", SDL_GetError());
234		return 0;
235	}
236	printf("Running display format cc blit test: %dx%d at %d bpp, flags: ",
237		bmpcc->w, bmpcc->h, bmpcc->format->BitsPerPixel);
238	PrintFlags(bmpcc->flags);
239	printf("\n");
240	then = SDL_GetTicks();
241	frames = RunBlitTests(screen, bmpcc, NUM_BLITS);
242	now = SDL_GetTicks();
243	seconds = (float)(now - then) / 1000.0f;
244	if ( seconds > 0.0f ) {
245		printf("%d cc blits / %d updates in %2.2f seconds, %2.2f FPS\n", NUM_BLITS*frames, frames, seconds, (float)frames / seconds);
246	} else {
247		printf("%d cc blits / %d updates in zero seconds!\n", NUM_BLITS*frames, frames);
248	}
249
250        /* clear the screen after cc blit test */
251        SDL_FillRect(screen, NULL, SDL_MapRGB(screen->format, 0, 0, 0));
252	SDL_Flip(screen);
253
254	while ( SDL_PollEvent(&event) ) {
255		if ( event.type == SDL_KEYDOWN )
256			return 0;
257	}
258
259        /* run the alpha blit test only if screen bpp>8 */
260        if (bmp->format->BitsPerPixel>8)
261        {
262		SDL_FreeSurface(bmp);
263                bmp = SDL_LoadBMP("sample.bmp");
264		SDL_SetAlpha(bmp, SDL_SRCALPHA, 85); /* 85 - 33% alpha */
265		tmp = bmp;
266		bmp = SDL_DisplayFormat(bmp);
267		SDL_FreeSurface(tmp);
268		if ( ! bmp ) {
269			printf("Couldn't convert sample.bmp: %s\n", SDL_GetError());
270			return 0;
271		}
272		printf("Running display format alpha blit test: %dx%d at %d bpp, flags: ",
273			bmp->w, bmp->h, bmp->format->BitsPerPixel);
274		PrintFlags(bmp->flags);
275		printf("\n");
276		then = SDL_GetTicks();
277		frames = RunBlitTests(screen, bmp, NUM_BLITS);
278		now = SDL_GetTicks();
279		seconds = (float)(now - then) / 1000.0f;
280		if ( seconds > 0.0f ) {
281			printf("%d alpha blits / %d updates in %2.2f seconds, %2.2f FPS\n", NUM_BLITS*frames, frames, seconds, (float)frames / seconds);
282		} else {
283			printf("%d alpha blits / %d updates in zero seconds!\n", NUM_BLITS*frames, frames);
284		}
285	}
286
287        /* clear the screen after alpha blit test */
288        SDL_FillRect(screen, NULL, SDL_MapRGB(screen->format, 0, 0, 0));
289	SDL_Flip(screen);
290
291	while ( SDL_PollEvent(&event) ) {
292		if ( event.type == SDL_KEYDOWN )
293			return 0;
294	}
295
296        /* run the cc+alpha blit test only if screen bpp>8 */
297        if (bmp->format->BitsPerPixel>8)
298        {
299		SDL_FreeSurface(bmpcc);
300                bmpcc = SDL_LoadBMP("sample.bmp");
301		SDL_SetAlpha(bmpcc, SDL_SRCALPHA, 85); /* 85 - 33% alpha */
302                SDL_SetColorKey(bmpcc, SDL_SRCCOLORKEY | SDL_RLEACCEL, *(Uint8 *)bmpcc->pixels);
303		tmp = bmpcc;
304		bmpcc = SDL_DisplayFormat(bmpcc);
305		SDL_FreeSurface(tmp);
306		if ( ! bmpcc ) {
307			printf("Couldn't convert sample.bmp: %s\n", SDL_GetError());
308			return 0;
309		}
310		printf("Running display format cc+alpha blit test: %dx%d at %d bpp, flags: ",
311			bmpcc->w, bmpcc->h, bmpcc->format->BitsPerPixel);
312		PrintFlags(bmpcc->flags);
313		printf("\n");
314		then = SDL_GetTicks();
315		frames = RunBlitTests(screen, bmpcc, NUM_BLITS);
316		now = SDL_GetTicks();
317		seconds = (float)(now - then) / 1000.0f;
318		if ( seconds > 0.0f ) {
319			printf("%d cc+alpha blits / %d updates in %2.2f seconds, %2.2f FPS\n", NUM_BLITS*frames, frames, seconds, (float)frames / seconds);
320		} else {
321			printf("%d cc+alpha blits / %d updates in zero seconds!\n", NUM_BLITS*frames, frames);
322		}
323	}
324
325	SDL_FreeSurface(bmpcc);
326	SDL_FreeSurface(bmp);
327
328	while ( SDL_PollEvent(&event) ) {
329		if ( event.type == SDL_KEYDOWN )
330			return 0;
331	}
332	return 1;
333}
334
335void RunVideoTests()
336{
337	static const struct {
338		int w, h, bpp;
339	} mode_list[] = {
340		{ 640, 480, 8 }, { 640, 480, 16 }, { 640, 480, 32 },
341		{ 800, 600, 8 }, { 800, 600, 16 }, { 800, 600, 32 },
342		{ 1024, 768, 8 }, { 1024, 768, 16 }, { 1024, 768, 32 }
343	};
344	static const Uint32 flags[] = {
345		(SDL_SWSURFACE),
346		(SDL_SWSURFACE | SDL_FULLSCREEN),
347		(SDL_HWSURFACE | SDL_FULLSCREEN),
348		(SDL_HWSURFACE | SDL_FULLSCREEN | SDL_DOUBLEBUF)
349	};
350	int i, j;
351	SDL_Surface *screen;
352
353	/* Test out several different video mode combinations */
354	SDL_WM_SetCaption("SDL Video Benchmark", "vidtest");
355	SDL_ShowCursor(0);
356	for ( i = 0; i < SDL_TABLESIZE(mode_list); ++i ) {
357		for ( j = 0; j < SDL_TABLESIZE(flags); ++j ) {
358			printf("===================================\n");
359			printf("Setting video mode: %dx%d at %d bpp, flags: ",
360			                          mode_list[i].w,
361			                          mode_list[i].h,
362			                          mode_list[i].bpp);
363			PrintFlags(flags[j]);
364			printf("\n");
365			screen = SDL_SetVideoMode(mode_list[i].w,
366			                          mode_list[i].h,
367			                          mode_list[i].bpp,
368			                          flags[j]);
369			if ( ! screen ) {
370				printf("Setting video mode failed: %s\n", SDL_GetError());
371				continue;
372			}
373			if ( (screen->flags & FLAG_MASK) != flags[j] ) {
374				printf("Flags didn't match: ");
375				PrintFlags(screen->flags);
376				printf("\n");
377				continue;
378			}
379			if ( ! RunModeTests(screen) ) {
380				return;
381			}
382		}
383	}
384}
385
386int main(int argc, char *argv[])
387{
388	const SDL_VideoInfo *info;
389	int i;
390	SDL_Rect **modes;
391	char driver[128];
392
393	if ( SDL_Init(SDL_INIT_VIDEO) < 0 ) {
394		fprintf(stderr,
395			"Couldn't initialize SDL: %s\n", SDL_GetError());
396		exit(1);
397	}
398	if ( SDL_VideoDriverName(driver, sizeof(driver)) ) {
399		printf("Video driver: %s\n", driver);
400	}
401	info = SDL_GetVideoInfo();
402	printf(
403"Current display: %dx%d, %d bits-per-pixel\n",
404		info->current_w, info->current_h, info->vfmt->BitsPerPixel);
405	if ( info->vfmt->palette == NULL ) {
406		printf("	Red Mask = 0x%.8x\n", info->vfmt->Rmask);
407		printf("	Green Mask = 0x%.8x\n", info->vfmt->Gmask);
408		printf("	Blue Mask = 0x%.8x\n", info->vfmt->Bmask);
409	}
410	/* Print available fullscreen video modes */
411	modes = SDL_ListModes(NULL, SDL_FULLSCREEN);
412	if ( modes == (SDL_Rect **)0 ) {
413		printf("No available fullscreen video modes\n");
414	} else
415	if ( modes == (SDL_Rect **)-1 ) {
416		printf("No special fullscreen video modes\n");
417	} else {
418		printf("Fullscreen video modes:\n");
419		for ( i=0; modes[i]; ++i ) {
420			printf("\t%dx%dx%d\n", modes[i]->w, modes[i]->h, info->vfmt->BitsPerPixel);
421		}
422	}
423	if ( info->wm_available ) {
424		printf("A window manager is available\n");
425	}
426	if ( info->hw_available ) {
427		printf("Hardware surfaces are available (%dK video memory)\n",
428			info->video_mem);
429	}
430	if ( info->blit_hw ) {
431		printf(
432"Copy blits between hardware surfaces are accelerated\n");
433	}
434	if ( info->blit_hw_CC ) {
435		printf(
436"Colorkey blits between hardware surfaces are accelerated\n");
437	}
438	if ( info->blit_hw_A ) {
439		printf(
440"Alpha blits between hardware surfaces are accelerated\n");
441	}
442	if ( info->blit_sw ) {
443		printf(
444"Copy blits from software surfaces to hardware surfaces are accelerated\n");
445	}
446	if ( info->blit_sw_CC ) {
447		printf(
448"Colorkey blits from software surfaces to hardware surfaces are accelerated\n");
449	}
450	if ( info->blit_sw_A ) {
451		printf(
452"Alpha blits from software surfaces to hardware surfaces are accelerated\n");
453	}
454	if ( info->blit_fill ) {
455		printf(
456"Color fills on hardware surfaces are accelerated\n");
457	}
458
459	if ( argv[1] && (strcmp(argv[1], "-benchmark") == 0) ) {
460		RunVideoTests();
461	}
462
463	SDL_Quit();
464	return(0);
465}
466