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misc cleanup

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This commit is contained in:
Shaun Inman 2023-02-15 21:30:24 -05:00
parent a9fd90ad6a
commit a39620bc99
4 changed files with 63 additions and 40 deletions
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33
src/common/api.c
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@ -168,11 +168,23 @@ SDL_Surface* GFX_init(int mode) {
gfx.vinfo.yres_virtual = VIRTUAL_HEIGHT;
gfx.vinfo.xoffset = 0;
gfx.vinfo.yoffset = 0;
ioctl(gfx.fb0_fd, FBIOPUT_VSCREENINFO, &gfx.vinfo);
if (ioctl(gfx.fb0_fd, FBIOPUT_VSCREENINFO, &gfx.vinfo)) LOG_info("FBIOPUT_VSCREENINFO failed %s\n", strerror(errno));
// printf("bits_per_pixel: %i\n", gfx.vinfo.bits_per_pixel);
// printf("xres: %i\n", gfx.vinfo.xres);
// printf("yres: %i\n", gfx.vinfo.yres);
// printf("xres_virtual: %i\n", gfx.vinfo.xres_virtual);
// printf("yres_virtual: %i\n", gfx.vinfo.yres_virtual);
// printf("xoffset: %i\n", gfx.vinfo.xoffset);
// printf("yoffset: %i\n", gfx.vinfo.yoffset);
// printf("activate: %i\n", gfx.vinfo.activate);
// printf("vmode: %i\n", gfx.vinfo.vmode);
// printf("sync: %i\n", gfx.vinfo.sync);
// fflush(stdout);
struct owlfb_sync_info sinfo;
sinfo.enabled = 1;
ioctl(gfx.fb0_fd, OWLFB_VSYNC_EVENT_EN, &sinfo);
if (ioctl(gfx.fb0_fd, OWLFB_VSYNC_EVENT_EN, &sinfo)) LOG_info("OWLFB_VSYNC_EVENT_EN failed %s\n", strerror(errno));
gfx.page = 1; // start on the backbuffer
gfx.fb0_buffer = mmap(0, VIRTUAL_SIZE, PROT_READ | PROT_WRITE, MAP_SHARED, gfx.fb0_fd, 0);
@ -229,6 +241,17 @@ void GFX_quit(void) {
GFX_clearAll();
munmap(gfx.fb0_buffer, VIRTUAL_SIZE);
// restore for other binaries
gfx.vinfo.bits_per_pixel = FIXED_DEPTH;
gfx.vinfo.xres = FIXED_WIDTH;
gfx.vinfo.yres = FIXED_HEIGHT;
gfx.vinfo.xres_virtual = FIXED_WIDTH;
gfx.vinfo.yres_virtual = FIXED_HEIGHT;
gfx.vinfo.xoffset = 0;
gfx.vinfo.yoffset = 0;
if (ioctl(gfx.fb0_fd, FBIOPUT_VSCREENINFO, &gfx.vinfo)) LOG_info("FBIOPUT_VSCREENINFO failed %s\n", strerror(errno));
close(gfx.fb0_fd);
SDL_Quit();
}
@ -279,13 +302,13 @@ SDL_Surface* GFX_resize(int w, int h, int pitch) {
void GFX_flip(SDL_Surface* screen) {
// point framebuffer at the first line of the backbuffer
gfx.vinfo.yoffset = gfx.page * PAGE_HEIGHT;
ioctl(gfx.fb0_fd, gfx.resized ? FBIOPUT_VSCREENINFO : FBIOPAN_DISPLAY, &gfx.vinfo);
if (ioctl(gfx.fb0_fd, gfx.resized ? FBIOPUT_VSCREENINFO : FBIOPAN_DISPLAY, &gfx.vinfo)) LOG_info("FBIOPUT_VSCREENINFO failed %s\n", strerror(errno));
gfx.resized = 0;
if (gfx.vsync!=VSYNC_OFF) {
// this limiting condition helps SuperFX chip games
if (gfx.vsync==VSYNC_STRICT || frame_start==0 || SDL_GetTicks()-frame_start<FRAME_BUDGET) { // only wait if we're under frame budget
ioctl(gfx.fb0_fd, OWLFB_WAITFORVSYNC, &_);
if (ioctl(gfx.fb0_fd, OWLFB_WAITFORVSYNC, &_)) LOG_info("OWLFB_WAITFORVSYNC failed %s\n", strerror(errno));
}
}
@ -299,7 +322,7 @@ void GFX_sync(void) {
if (gfx.vsync!=VSYNC_OFF) {
// this limiting condition helps SuperFX chip games
if (gfx.vsync==VSYNC_STRICT || frame_start==0 || SDL_GetTicks()-frame_start<FRAME_BUDGET) { // only wait if we're under frame budget
ioctl(gfx.fb0_fd, OWLFB_WAITFORVSYNC, &_);
if (ioctl(gfx.fb0_fd, OWLFB_WAITFORVSYNC, &_)) LOG_info("OWLFB_WAITFORVSYNC failed %s\n", strerror(errno));
}
}
else {