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refactored FPS blitting

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This commit is contained in:
Shaun Inman 2023-01-20 22:31:07 -05:00
parent d71dc59cd3
commit c576123cad
1 changed files with 41 additions and 32 deletions
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73
src/minarch/main.c
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@ -587,61 +587,65 @@ static bool environment_callback(unsigned cmd, void *data) { // copied from pico
///////////////////////////////
// TODO: tmp?
// TODO: tmp? rename this HUD_*? support messages too?
SDL_Surface* digits;
#define DIGIT_WIDTH 14
#define DIGIT_HEIGHT 16
enum {
DIGIT_SLASH = 10,
DIGIT_DOT,
DIGIT_COUNT,
};
static void FPS_init(void) {
// TODO: scale
digits = SDL_CreateRGBSurface(SDL_SWSURFACE, 20*11,32, 16, 0,0,0,0);
digits = SDL_CreateRGBSurface(SDL_SWSURFACE,DIGIT_WIDTH*DIGIT_COUNT,DIGIT_HEIGHT,SCREEN_DEPTH, 0,0,0,0);
SDL_FillRect(digits, NULL, RGB_BLACK);
SDL_Surface* digit;
char* chars[] = { "0","1","2","3","4","5","6","7","8","9",".", NULL };
char* chars[] = { "0","1","2","3","4","5","6","7","8","9","/",".", NULL };
char* c;
int i = 0;
#define DIGIT_WIDTH 20
#define DIGIT_HEIGHT 32
#define CHAR_DOT 10
while (c = chars[i]) {
digit = TTF_RenderUTF8_Blended(font.large, c, COLOR_WHITE);
digit = TTF_RenderUTF8_Blended(font.tiny, c, COLOR_WHITE);
SDL_BlitSurface(digit, NULL, digits, &(SDL_Rect){ (i * DIGIT_WIDTH) + (DIGIT_WIDTH - digit->w)/2, (DIGIT_HEIGHT - digit->h)/2});
SDL_FreeSurface(digit);
i += 1;
}
}
static void FPS_blitDouble(double num, int x, int y) {
static int FPS_blitChar(int n, int x, int y) {
SDL_BlitSurface(digits, &(SDL_Rect){n*DIGIT_WIDTH,0,DIGIT_WIDTH,DIGIT_HEIGHT}, screen, &(SDL_Rect){x,y});
return x + DIGIT_WIDTH;
}
static int FPS_blitDouble(double num, int x, int y) {
int i = num;
int r = (num-i) * 10;
int n;
// if (i > 999) {
// n = i / 1000;
// i -= n * 1000;
// SDL_BlitSurface(digits, &(SDL_Rect){n*20,0,20,32}, screen, &(SDL_Rect){x,y});
// x += 20;
// }
// if (i > 99) {
// n = i / 100;
// i -= n * 100;
// SDL_BlitSurface(digits, &(SDL_Rect){n*20,0,20,32}, screen, &(SDL_Rect){x,y});
// x += 20;
// }
if (i > 999) {
n = i / 1000;
i -= n * 1000;
x = FPS_blitChar(n,x,y);
}
if (i > 99) {
n = i / 100;
i -= n * 100;
x = FPS_blitChar(n,x,y);
}
n = i / 10;
i -= n * 10;
SDL_BlitSurface(digits, &(SDL_Rect){n*20,0,20,32}, screen, &(SDL_Rect){x,y});
x += 20;
x = FPS_blitChar(n,x,y);
n = i;
SDL_BlitSurface(digits, &(SDL_Rect){n*20,0,20,32}, screen, &(SDL_Rect){x,y});
x += 20;
x = FPS_blitChar(n,x,y);
n = 10;
SDL_BlitSurface(digits, &(SDL_Rect){n*20,0,20,32}, screen, &(SDL_Rect){x,y});
x += 20;
n = DIGIT_DOT;
x = FPS_blitChar(n,x,y);
n = r;
SDL_BlitSurface(digits, &(SDL_Rect){n*20,0,20,32}, screen, &(SDL_Rect){x,y});
x = FPS_blitChar(n,x,y);
return x;
}
static void FPS_quit(void) {
SDL_FreeSurface(digits);
@ -1197,8 +1201,13 @@ static void video_refresh_callback(const void *data, unsigned width, unsigned he
if (frame>=fps) frame -= fps;
}
if (fps_double) FPS_blitDouble(fps_double, 0,0);
if (cpu_double) FPS_blitDouble(cpu_double, 100,0);
int x = 0;
int y = SCREEN_HEIGHT - DIGIT_HEIGHT;
if (fps_double) x = FPS_blitDouble(fps_double, x,y);
if (cpu_double) {
x = FPS_blitChar(DIGIT_SLASH,x,y);
FPS_blitDouble(cpu_double, x,y);
}
GFX_flip(screen);
@ -1904,7 +1913,7 @@ int main(int argc , char* argv[]) {
if (now - sec_start>=1000) {
fps_double = fps_ticks / ((double)(now - sec_start) / 1000);
cpu_double = cpu_ticks / ((double)(now - sec_start) / 1000);
// printf("fps: %i (%i)\n", cpu_ticks, fps_ticks);
// printf("fps: %f (%f)\n", fps_double, cpu_double); fflush(stdout);
sec_start = now;
cpu_ticks = 0;
fps_ticks = 0;