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(GX) refactor EFB screenshot code

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now might be feasible to implement it in normal compiles
This commit is contained in:
Toad King 2012-08-24 23:31:58 -04:00
parent 492e474826
commit e479a50203
1 changed files with 26 additions and 43 deletions
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69
gx/gx_video.c
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@ -174,64 +174,47 @@ static void build_disp_list(void)
display_list_size = GX_EndDispList();
}
//#define TAKE_VIEWPORT_SCREENSHOT_ON_EXIT
//#define TAKE_EFB_SCREENSHOT_ON_EXIT
#ifdef TAKE_VIEWPORT_SCREENSHOT_ON_EXIT
#ifdef TAKE_EFB_SCREENSHOT_ON_EXIT
#define _SS_SHIFTL(v, s, w) \
((uint32_t) (((uint32_t)(v) & ((0x01 << (w)) - 1)) << (s)))
#define _SS_SHIFTR(v, s, w) \
((uint32_t)(((uint32_t)(v) >> (s)) & ((0x01 << (w)) - 1)))
// Coded by Crayon for GRRLIB (http://code.google.com/p/grrlib)
static void gx_viewport_screenshot()
// Adapted from code by Crayon for GRRLIB (http://code.google.com/p/grrlib)
static void gx_efb_screenshot()
{
uint32_t x,y, tmpy, tmpxy, regval, val, i;
unsigned char * tmpbuffer = (unsigned char *)malloc(640*480*3);
memset(tmpbuffer, 0, 640*480*3);
for(y=0; y < 480; y++)
{
tmpy = y * 640*3;
for(x=0; x < 640; x++)
{
regval = 0xc8000000|(_SS_SHIFTL(x,2,10));
regval = (regval&~0x3FF000)|(_SS_SHIFTL(y,12,10));
val = *(uint32_t*)regval;
tmpxy = x * 3 + tmpy;
tmpbuffer[tmpxy ] = val&0xff; // R
tmpbuffer[tmpxy+1] = _SS_SHIFTR(val,8,8); // G
tmpbuffer[tmpxy+2] = _SS_SHIFTR(val,16,8); // B
}
}
int x, y;
uint8_t tga_header[] = {0x00, 0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0x02, 0xE0, 0x01, 0x18, 0x00};
FILE *out = fopen("/screenshot.tga", "wb");
if (!out)
{
free(tmpbuffer);
return;
}
fwrite(tga_header, 1, sizeof(tga_header), out);
uint8_t *line = &tmpbuffer[640 * 479 * 3];
for (i = 0; i < 480; i++)
{
fwrite(line, 1, 640 * 3, out);
line -= 640 * 3;
}
fclose(out);
free(tmpbuffer);
fwrite(tga_header, 1, sizeof(tga_header), out);
for (y = 479; y >= 0; --y)
{
uint8_t line[640 * 3];
unsigned i = 0;
for (x = 0; x < 640; x++)
{
GXColor color;
GX_PeekARGB(x, y, &color);
line[i++] = color.b;
line[i++] = color.g;
line[i++] = color.r;
}
fwrite(line, 1, sizeof(line), out);
}
fclose(out);
}
#endif
static void gx_stop(void)
{
#ifdef TAKE_VIEWPORT_SCREENSHOT_ON_EXIT
gx_viewport_screenshot();
#ifdef TAKE_EFB_SCREENSHOT_ON_EXIT
gx_efb_screenshot();
#endif
GX_DrawDone();
GX_AbortFrame();
@ -597,7 +580,7 @@ static bool gx_frame(void *data, const void *frame,
GX_DrawDone();
}
#ifdef TAKE_VIEWPORT_SCREENSHOT_ON_EXIT
#ifdef TAKE_EFB_SCREENSHOT_ON_EXIT
GX_CopyDisp(g_framebuf[g_current_framebuf], GX_FALSE);
#else
GX_CopyDisp(g_framebuf[g_current_framebuf], GX_TRUE);