pandory500/SDL-mirror
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Fixed some bugs and added some features to the -benchmark facility

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--HG--
extra : convert_revision : svn%3Ac70aab31-4412-0410-b14c-859654838e24/trunk%40481
This commit is contained in:
Sam Lantinga 2002-08-31 21:00:28 +00:00
parent 5b393a92a4
commit 9e8960992e
1 changed files with 61 additions and 30 deletions
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91
test/testvidinfo.c
View file

@ -7,6 +7,9 @@
#include "SDL.h"
#define NUM_BLITS 10
#define NUM_UPDATES 500
#define FLAG_MASK (SDL_HWSURFACE | SDL_FULLSCREEN | SDL_DOUBLEBUF)
void PrintFlags(Uint32 flags)
@ -30,49 +33,47 @@ int RunBlitTests(SDL_Surface *screen, SDL_Surface *bmp, int blitcount)
int i, j;
int maxx;
int maxy;
SDL_Rect *rects;
SDL_Rect dst;
rects = (SDL_Rect *)malloc(blitcount * sizeof(*rects));
if ( ! rects ) {
return 0;
}
maxx = (int)screen->w - bmp->w;
maxy = (int)screen->h - bmp->h;
for ( i = 0; i < 100; ++i ) {
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 ) {
rects[j].x = rand() % maxx;
dst.x = rand() % maxx;
} else {
rects[j].x = 0;
dst.x = 0;
}
if ( maxy ) {
rects[j].y = rand() % maxy;
dst.y = rand() % maxy;
} else {
rects[j].y = 0;
dst.y = 0;
}
rects[j].w = bmp->w;
rects[j].h = bmp->h;
SDL_BlitSurface(bmp, NULL, screen, &rects[j]);
}
if ( screen->flags & SDL_DOUBLEBUF ) {
SDL_Flip(screen);
} else {
SDL_UpdateRects(screen, blitcount, rects);
dst.w = bmp->w;
dst.h = bmp->h;
SDL_BlitSurface(bmp, NULL, screen, &dst);
}
SDL_Flip(screen);
}
free(rects);
return i;
}
void RunModeTests(SDL_Surface *screen)
int RunModeTests(SDL_Surface *screen)
{
Uint32 then, now;
Uint32 frames;
float seconds;
int i;
Uint8 r, g, b;
Uint32 pixel;
SDL_Surface *bmp, *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");
@ -103,7 +104,17 @@ void RunModeTests(SDL_Surface *screen)
++frames;
}
now = SDL_GetTicks();
printf("%d fills and flips, %f FPS\n", frames, (float)(now - then) / frames);
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);
}
while ( SDL_PollEvent(&event) ) {
if ( event.type == SDL_KEYDOWN )
return 0;
}
bmp = SDL_LoadBMP("sample.bmp");
if ( ! bmp ) {
@ -115,10 +126,13 @@ void RunModeTests(SDL_Surface *screen)
PrintFlags(bmp->flags);
printf("\n");
then = SDL_GetTicks();
frames = RunBlitTests(screen, bmp, 10);
frames = RunBlitTests(screen, bmp, NUM_BLITS);
now = SDL_GetTicks();
if ( frames ) {
printf("%d blits, %d updates, %f FPS\n", 10*frames, frames, (float)(now - then) / frames);
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);
}
tmp = bmp;
@ -133,12 +147,21 @@ void RunModeTests(SDL_Surface *screen)
PrintFlags(bmp->flags);
printf("\n");
then = SDL_GetTicks();
frames = RunBlitTests(screen, bmp, 10);
frames = RunBlitTests(screen, bmp, NUM_BLITS);
now = SDL_GetTicks();
if ( frames ) {
printf("%d blits, %d updates, %f FPS\n", 10*frames, frames, (float)(now - then) / frames);
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);
}
SDL_FreeSurface(bmp);
while ( SDL_PollEvent(&event) ) {
if ( event.type == SDL_KEYDOWN )
return 0;
}
return 1;
}
void RunVideoTests()
@ -160,6 +183,8 @@ void RunVideoTests()
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");
@ -183,7 +208,9 @@ void RunVideoTests()
printf("\n");
continue;
}
RunModeTests(screen);
if ( ! RunModeTests(screen) ) {
return;
}
}
}
}
@ -193,12 +220,16 @@ 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);