test/testvidinfo.c
author Sam Lantinga <slouken@libsdl.org>
Thu, 06 May 2004 15:55:06 +0000
changeset 886 05c551e5bc64
parent 821 30168104389f
child 1545 8d9bb0cf2c2a
permissions -rw-r--r--
Date: Sat, 24 Apr 2004 15:13:32 +0300 From: "Mike Gorchak" Subject: SDL updates for the QNX6 1. Updated the README.QNX 2. Updated libtool scripts, which are shipped with SDL for QNX6 support. 3. Added some code to support the new QNX 6.3.0, which is in beta now. 4. Added code to detect the hw features, which driver supports. 5. Added hw alpha blits code. 6. Fixed bug when application switches to fullscreen more the 2 times. (afte\ r that window becames always stay on top). 7. Updated a bit README for the tests. 8. Added information about acceleration show in the testalpha.c test. 9. Added small fixes to the testoverlay2.c test. 10. Added alpha and cc+alpha blits benchmarks to the testvidinfo.c test.


/* Simple program -- figure out what kind of video display we have */

#include <stdlib.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#include "SDL.h"

#define NUM_BLITS	10
#define NUM_UPDATES	500

#define FLAG_MASK	(SDL_HWSURFACE | SDL_FULLSCREEN | SDL_DOUBLEBUF | \
                         SDL_SRCCOLORKEY | SDL_SRCALPHA | SDL_RLEACCEL  | \
                         SDL_RLEACCELOK)

void PrintFlags(Uint32 flags)
{
	printf("0x%8.8x", (flags & FLAG_MASK));
	if ( flags & SDL_HWSURFACE ) {
		printf(" SDL_HWSURFACE");
	} else {
		printf(" SDL_SWSURFACE");
	}
	if ( flags & SDL_FULLSCREEN ) {
		printf(" | SDL_FULLSCREEN");
	}
	if ( flags & SDL_DOUBLEBUF ) {
		printf(" | SDL_DOUBLEBUF");
	}
	if ( flags & SDL_SRCCOLORKEY ) {
		printf(" | SDL_SRCCOLORKEY");
	}
	if ( flags & SDL_SRCALPHA ) {
		printf(" | SDL_SRCALPHA");
	}
	if ( flags & SDL_RLEACCEL ) {
		printf(" | SDL_RLEACCEL");
	}
	if ( flags & SDL_RLEACCELOK ) {
		printf(" | SDL_RLEACCELOK");
	}
}

int RunBlitTests(SDL_Surface *screen, SDL_Surface *bmp, int blitcount)
{
	int i, j;
	int maxx;
	int maxy;
	SDL_Rect dst;

	maxx = (int)screen->w - bmp->w + 1;
	maxy = (int)screen->h - bmp->h + 1;
	for ( i = 0; i < NUM_UPDATES; ++i ) {
		for ( j = 0; j < blitcount; ++j ) {
			if ( maxx ) {
				dst.x = rand() % maxx;
			} else {
				dst.x = 0;
			}
			if ( maxy ) {
				dst.y = rand() % maxy;
			} else {
				dst.y = 0;
			}
			dst.w = bmp->w;
			dst.h = bmp->h;
			SDL_BlitSurface(bmp, NULL, screen, &dst);
		}
		SDL_Flip(screen);
	}

	return i;
}

int RunModeTests(SDL_Surface *screen)
{
	Uint32 then, now;
	Uint32 frames;
	float seconds;
	int i;
	Uint8 r, g, b;
	SDL_Surface *bmp, *bmpcc, *tmp;
	SDL_Event event;

	while ( SDL_PollEvent(&event) ) {
		if ( event.type == SDL_KEYDOWN )
			return 0;
	}

	/* First test fills and screen update speed */
	printf("Running color fill and fullscreen update test\n");
	then = SDL_GetTicks();
	frames = 0;
	for ( i = 0; i < 256; ++i ) {
		r = i;
		g = 0;
		b = 0;
		SDL_FillRect(screen, NULL, SDL_MapRGB(screen->format, r, g, b));
		SDL_Flip(screen);
		++frames;
	}
	for ( i = 0; i < 256; ++i ) {
		r = 0;
		g = i;
		b = 0;
		SDL_FillRect(screen, NULL, SDL_MapRGB(screen->format, r, g, b));
		SDL_Flip(screen);
		++frames;
	}
	for ( i = 0; i < 256; ++i ) {
		r = 0;
		g = 0;
		b = i;
		SDL_FillRect(screen, NULL, SDL_MapRGB(screen->format, r, g, b));
		SDL_Flip(screen);
		++frames;
	}
	now = SDL_GetTicks();
	seconds = (float)(now - then) / 1000.0f;
	if ( seconds > 0.0f ) {
		printf("%d fills and flips in %2.2f seconds, %2.2f FPS\n", frames, seconds, (float)frames / seconds);
	} else {
		printf("%d fills and flips in zero seconds!n", frames);
	}

        /* clear the screen after fill test */
        SDL_FillRect(screen, NULL, SDL_MapRGB(screen->format, 0, 0, 0));
	SDL_Flip(screen);

	while ( SDL_PollEvent(&event) ) {
		if ( event.type == SDL_KEYDOWN )
			return 0;
	}

        /* run the generic blit test */
	bmp = SDL_LoadBMP("sample.bmp");
	if ( ! bmp ) {
		printf("Couldn't load sample.bmp: %s\n", SDL_GetError());
		return 0;
	}
	printf("Running freshly loaded blit test: %dx%d at %d bpp, flags: ",
		bmp->w, bmp->h, bmp->format->BitsPerPixel);
	PrintFlags(bmp->flags);
	printf("\n");
	then = SDL_GetTicks();
	frames = RunBlitTests(screen, bmp, NUM_BLITS);
	now = SDL_GetTicks();
	seconds = (float)(now - then) / 1000.0f;
	if ( seconds > 0.0f ) {
		printf("%d blits / %d updates in %2.2f seconds, %2.2f FPS\n", NUM_BLITS*frames, frames, seconds, (float)frames / seconds);
	} else {
		printf("%d blits / %d updates in zero seconds!\n", NUM_BLITS*frames, frames);
	}

        /* clear the screen after blit test */
        SDL_FillRect(screen, NULL, SDL_MapRGB(screen->format, 0, 0, 0));
	SDL_Flip(screen);

	while ( SDL_PollEvent(&event) ) {
		if ( event.type == SDL_KEYDOWN )
			return 0;
	}

        /* run the colorkeyed blit test */
	bmpcc = SDL_LoadBMP("sample.bmp");
	if ( ! bmpcc ) {
		printf("Couldn't load sample.bmp: %s\n", SDL_GetError());
		return 0;
	}
	printf("Running freshly loaded cc blit test: %dx%d at %d bpp, flags: ",
		bmpcc->w, bmpcc->h, bmpcc->format->BitsPerPixel);
        SDL_SetColorKey(bmpcc, SDL_SRCCOLORKEY | SDL_RLEACCEL, *(Uint8 *)bmpcc->pixels);

	PrintFlags(bmpcc->flags);
	printf("\n");
	then = SDL_GetTicks();
	frames = RunBlitTests(screen, bmpcc, NUM_BLITS);
	now = SDL_GetTicks();
	seconds = (float)(now - then) / 1000.0f;
	if ( seconds > 0.0f ) {
		printf("%d cc blits / %d updates in %2.2f seconds, %2.2f FPS\n", NUM_BLITS*frames, frames, seconds, (float)frames / seconds);
	} else {
		printf("%d cc blits / %d updates in zero seconds!\n", NUM_BLITS*frames, frames);
	}

        /* clear the screen after cc blit test */
        SDL_FillRect(screen, NULL, SDL_MapRGB(screen->format, 0, 0, 0));
	SDL_Flip(screen);

	while ( SDL_PollEvent(&event) ) {
		if ( event.type == SDL_KEYDOWN )
			return 0;
	}

        /* run the generic blit test */
	tmp = bmp;
	bmp = SDL_DisplayFormat(bmp);
	SDL_FreeSurface(tmp);
	if ( ! bmp ) {
		printf("Couldn't convert sample.bmp: %s\n", SDL_GetError());
		return 0;
	}
	printf("Running display format blit test: %dx%d at %d bpp, flags: ",
		bmp->w, bmp->h, bmp->format->BitsPerPixel);
	PrintFlags(bmp->flags);
	printf("\n");
	then = SDL_GetTicks();
	frames = RunBlitTests(screen, bmp, NUM_BLITS);
	now = SDL_GetTicks();
	seconds = (float)(now - then) / 1000.0f;
	if ( seconds > 0.0f ) {
		printf("%d blits / %d updates in %2.2f seconds, %2.2f FPS\n", NUM_BLITS*frames, frames, seconds, (float)frames / seconds);
	} else {
		printf("%d blits / %d updates in zero seconds!\n", NUM_BLITS*frames, frames);
	}

        /* clear the screen after blit test */
        SDL_FillRect(screen, NULL, SDL_MapRGB(screen->format, 0, 0, 0));
	SDL_Flip(screen);

	while ( SDL_PollEvent(&event) ) {
		if ( event.type == SDL_KEYDOWN )
			return 0;
	}

        /* run the colorkeyed blit test */
	tmp = bmpcc;
	bmpcc = SDL_DisplayFormat(bmpcc);
	SDL_FreeSurface(tmp);
	if ( ! bmpcc ) {
		printf("Couldn't convert sample.bmp: %s\n", SDL_GetError());
		return 0;
	}
	printf("Running display format cc blit test: %dx%d at %d bpp, flags: ",
		bmpcc->w, bmpcc->h, bmpcc->format->BitsPerPixel);
	PrintFlags(bmpcc->flags);
	printf("\n");
	then = SDL_GetTicks();
	frames = RunBlitTests(screen, bmpcc, NUM_BLITS);
	now = SDL_GetTicks();
	seconds = (float)(now - then) / 1000.0f;
	if ( seconds > 0.0f ) {
		printf("%d cc blits / %d updates in %2.2f seconds, %2.2f FPS\n", NUM_BLITS*frames, frames, seconds, (float)frames / seconds);
	} else {
		printf("%d cc blits / %d updates in zero seconds!\n", NUM_BLITS*frames, frames);
	}

        /* clear the screen after cc blit test */
        SDL_FillRect(screen, NULL, SDL_MapRGB(screen->format, 0, 0, 0));
	SDL_Flip(screen);

	while ( SDL_PollEvent(&event) ) {
		if ( event.type == SDL_KEYDOWN )
			return 0;
	}

        /* run the alpha blit test only if screen bpp>8 */
        if (bmp->format->BitsPerPixel>8)
        {
		SDL_FreeSurface(bmp);
                bmp = SDL_LoadBMP("sample.bmp");
		SDL_SetAlpha(bmp, SDL_SRCALPHA, 85); /* 85 - 33% alpha */
		tmp = bmp;
		bmp = SDL_DisplayFormat(bmp);
		SDL_FreeSurface(tmp);
		if ( ! bmp ) {
			printf("Couldn't convert sample.bmp: %s\n", SDL_GetError());
			return 0;
		}
		printf("Running display format alpha blit test: %dx%d at %d bpp, flags: ",
			bmp->w, bmp->h, bmp->format->BitsPerPixel);
		PrintFlags(bmp->flags);
		printf("\n");
		then = SDL_GetTicks();
		frames = RunBlitTests(screen, bmp, NUM_BLITS);
		now = SDL_GetTicks();
		seconds = (float)(now - then) / 1000.0f;
		if ( seconds > 0.0f ) {
			printf("%d alpha blits / %d updates in %2.2f seconds, %2.2f FPS\n", NUM_BLITS*frames, frames, seconds, (float)frames / seconds);
		} else {
			printf("%d alpha blits / %d updates in zero seconds!\n", NUM_BLITS*frames, frames);
		}
	}

        /* clear the screen after alpha blit test */
        SDL_FillRect(screen, NULL, SDL_MapRGB(screen->format, 0, 0, 0));
	SDL_Flip(screen);

	while ( SDL_PollEvent(&event) ) {
		if ( event.type == SDL_KEYDOWN )
			return 0;
	}

        /* run the cc+alpha blit test only if screen bpp>8 */
        if (bmp->format->BitsPerPixel>8)
        {
		SDL_FreeSurface(bmpcc);
                bmpcc = SDL_LoadBMP("sample.bmp");
		SDL_SetAlpha(bmpcc, SDL_SRCALPHA, 85); /* 85 - 33% alpha */
                SDL_SetColorKey(bmpcc, SDL_SRCCOLORKEY | SDL_RLEACCEL, *(Uint8 *)bmpcc->pixels);
		tmp = bmpcc;
		bmpcc = SDL_DisplayFormat(bmpcc);
		SDL_FreeSurface(tmp);
		if ( ! bmpcc ) {
			printf("Couldn't convert sample.bmp: %s\n", SDL_GetError());
			return 0;
		}
		printf("Running display format cc+alpha blit test: %dx%d at %d bpp, flags: ",
			bmpcc->w, bmpcc->h, bmpcc->format->BitsPerPixel);
		PrintFlags(bmpcc->flags);
		printf("\n");
		then = SDL_GetTicks();
		frames = RunBlitTests(screen, bmpcc, NUM_BLITS);
		now = SDL_GetTicks();
		seconds = (float)(now - then) / 1000.0f;
		if ( seconds > 0.0f ) {
			printf("%d cc+alpha blits / %d updates in %2.2f seconds, %2.2f FPS\n", NUM_BLITS*frames, frames, seconds, (float)frames / seconds);
		} else {
			printf("%d cc+alpha blits / %d updates in zero seconds!\n", NUM_BLITS*frames, frames);
		}
	}

	SDL_FreeSurface(bmpcc);
	SDL_FreeSurface(bmp);

	while ( SDL_PollEvent(&event) ) {
		if ( event.type == SDL_KEYDOWN )
			return 0;
	}
	return 1;
}

void RunVideoTests()
{
	static const struct {
		int w, h, bpp;
	} mode_list[] = {
		{ 640, 480, 8 }, { 640, 480, 16 }, { 640, 480, 32 },
		{ 800, 600, 8 }, { 800, 600, 16 }, { 800, 600, 32 },
		{ 1024, 768, 8 }, { 1024, 768, 16 }, { 1024, 768, 32 }
	};
	static const Uint32 flags[] = {
		(SDL_SWSURFACE),
		(SDL_SWSURFACE | SDL_FULLSCREEN),
		(SDL_HWSURFACE | SDL_FULLSCREEN),
		(SDL_HWSURFACE | SDL_FULLSCREEN | SDL_DOUBLEBUF)
	};
	int i, j;
	SDL_Surface *screen;

	/* Test out several different video mode combinations */
	SDL_WM_SetCaption("SDL Video Benchmark", "vidtest");
	SDL_ShowCursor(0);
	for ( i = 0; i < SDL_TABLESIZE(mode_list); ++i ) {
		for ( j = 0; j < SDL_TABLESIZE(flags); ++j ) {
			printf("===================================\n");
			printf("Setting video mode: %dx%d at %d bpp, flags: ",
			                          mode_list[i].w,
			                          mode_list[i].h,
			                          mode_list[i].bpp);
			PrintFlags(flags[j]);
			printf("\n");
			screen = SDL_SetVideoMode(mode_list[i].w,
			                          mode_list[i].h,
			                          mode_list[i].bpp,
			                          flags[j]);
			if ( ! screen ) {
				printf("Setting video mode failed: %s\n", SDL_GetError());
				continue;
			}
			if ( (screen->flags & FLAG_MASK) != flags[j] ) {
				printf("Flags didn't match: ");
				PrintFlags(screen->flags);
				printf("\n");
				continue;
			}
			if ( ! RunModeTests(screen) ) {
				return;
			}
		}
	}
}

int main(int argc, char *argv[])
{
	const SDL_VideoInfo *info;
	int i;
	SDL_Rect **modes;
	char driver[128];

	if ( SDL_Init(SDL_INIT_VIDEO) < 0 ) {
		fprintf(stderr,
			"Couldn't initialize SDL: %s\n", SDL_GetError());
		exit(1);
	}
	if ( SDL_VideoDriverName(driver, sizeof(driver)) ) {
		printf("Video driver: %s\n", driver);
	}
	info = SDL_GetVideoInfo();
	printf(
"Current display: %d bits-per-pixel\n",info->vfmt->BitsPerPixel);
	if ( info->vfmt->palette == NULL ) {
		printf("	Red Mask = 0x%.8x\n", info->vfmt->Rmask);
		printf("	Green Mask = 0x%.8x\n", info->vfmt->Gmask);
		printf("	Blue Mask = 0x%.8x\n", info->vfmt->Bmask);
	}
	/* Print available fullscreen video modes */
	modes = SDL_ListModes(NULL, SDL_FULLSCREEN);
	if ( modes == (SDL_Rect **)0 ) {
		printf("No available fullscreen video modes\n");
	} else
	if ( modes == (SDL_Rect **)-1 ) {
		printf("No special fullscreen video modes\n");
	} else {
		printf("Fullscreen video modes:\n");
		for ( i=0; modes[i]; ++i ) {
			printf("\t%dx%dx%d\n", modes[i]->w, modes[i]->h, info->vfmt->BitsPerPixel);
		}
	}
	if ( info->wm_available ) {
		printf("A window manager is available\n");
	}
	if ( info->hw_available ) {
		printf("Hardware surfaces are available (%dK video memory)\n",
			info->video_mem);
	}
	if ( info->blit_hw ) {
		printf(
"Copy blits between hardware surfaces are accelerated\n");
	}
	if ( info->blit_hw_CC ) {
		printf(
"Colorkey blits between hardware surfaces are accelerated\n");
	}
	if ( info->blit_hw_A ) {
		printf(
"Alpha blits between hardware surfaces are accelerated\n");
	}
	if ( info->blit_sw ) {
		printf(
"Copy blits from software surfaces to hardware surfaces are accelerated\n");
	}
	if ( info->blit_sw_CC ) {
		printf(
"Colorkey blits from software surfaces to hardware surfaces are accelerated\n");
	}
	if ( info->blit_sw_A ) {
		printf(
"Alpha blits from software surfaces to hardware surfaces are accelerated\n");
	}
	if ( info->blit_fill ) {
		printf(
"Color fills on hardware surfaces are accelerated\n");
	}

	if ( argv[1] && (strcmp(argv[1], "-benchmark") == 0) ) {
		RunVideoTests();
	}

	SDL_Quit();
	return(0);
}