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support screenshots for 16bit games

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FunkyFr3sh 2021-05-23 04:36:33 +02:00
parent 209bc7b309
commit 64e2ddac0b
1 changed files with 80 additions and 31 deletions
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111
src/screenshot.c
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@ -7,12 +7,79 @@
#include "ddsurface.h"
#include "lodepng.h"
BOOL ss_take_screenshot(struct IDirectDrawSurfaceImpl *src)
static BOOL ss_screenshot_8bit(char* filename, IDirectDrawSurfaceImpl* src)
{
if (!src || !src->palette || !dds_GetBuffer(src))
LodePNGState state;
lodepng_state_init(&state);
for (int i = 0; i < 256; i++)
{
RGBQUAD* c = &src->palette->data_rgb[i];
lodepng_palette_add(&state.info_png.color, c->rgbRed, c->rgbGreen, c->rgbBlue, 255);
lodepng_palette_add(&state.info_raw, c->rgbRed, c->rgbGreen, c->rgbBlue, 255);
}
state.info_png.color.colortype = LCT_PALETTE;
state.info_png.color.bitdepth = 8;
state.info_raw.colortype = LCT_PALETTE;
state.info_raw.bitdepth = 8;
state.encoder.auto_convert = 0;
unsigned char* dst_buf = NULL;
size_t dst_buf_size = 0;
unsigned int error = lodepng_encode(&dst_buf, &dst_buf_size, dds_GetBuffer(src), src->width, src->height, &state);
if (!error && dst_buf)
lodepng_save_file(dst_buf, dst_buf_size, filename);
lodepng_state_cleanup(&state);
if (dst_buf)
free(dst_buf);
return !error;
}
static BOOL ss_screenshot_16bit(char* filename, IDirectDrawSurfaceImpl* src)
{
unsigned int error = TRUE;
unsigned int* src_buf = malloc(src->width * src->height * 4);
if (src_buf)
{
unsigned short* surface = (unsigned short*)dds_GetBuffer(src);
for (int y = 0; y < src->height; y++)
{
int src_y = y * src->width;
for (int x = 0; x < src->width; x++)
{
unsigned short pixel = surface[src_y + x];
BYTE red = ((pixel & 0xF800) >> 11) << 3;
BYTE green = ((pixel & 0x07E0) >> 5) << 2;
BYTE blue = ((pixel & 0x001F)) << 3;
src_buf[src_y + x] = (0xFF << 24) | (blue << 16) | (green << 8) | red;
}
}
error = lodepng_encode32_file(filename, (unsigned char*)src_buf, src->width, src->height);
free(src_buf);
}
return !error;
}
BOOL ss_take_screenshot(IDirectDrawSurfaceImpl *src)
{
if (!src || !dds_GetBuffer(src))
return FALSE;
int i;
char title[128];
char filename[128];
char str_time[64];
@ -20,7 +87,7 @@ BOOL ss_take_screenshot(struct IDirectDrawSurfaceImpl *src)
strncpy(title, g_ddraw->title, sizeof(g_ddraw->title));
for (i = 0; i<strlen(title); i++)
for (int i = 0; i<strlen(title); i++)
{
if (title[i] == ' ')
{
@ -32,35 +99,17 @@ BOOL ss_take_screenshot(struct IDirectDrawSurfaceImpl *src)
}
}
strftime(str_time, 64, "%Y-%m-%d-%H_%M_%S", localtime(&t));
_snprintf(filename, 128, "%s-%s.png", title, str_time);
strftime(str_time, sizeof(str_time), "%Y-%m-%d-%H_%M_%S", localtime(&t));
_snprintf(filename, sizeof(filename), "%s-%s.png", title, str_time);
unsigned char* png;
size_t pngsize;
LodePNGState state;
lodepng_state_init(&state);
for (i = 0; i < 256; i++)
if (src->bpp == 8 && src->palette)
{
RGBQUAD *c = &src->palette->data_rgb[i];
lodepng_palette_add(&state.info_png.color, c->rgbRed, c->rgbGreen, c->rgbBlue, 255);
lodepng_palette_add(&state.info_raw, c->rgbRed, c->rgbGreen, c->rgbBlue, 255);
return ss_screenshot_8bit(filename, src);
}
else if (src->bpp == 16)
{
return ss_screenshot_16bit(filename, src);
}
state.info_png.color.colortype = LCT_PALETTE;
state.info_png.color.bitdepth = 8;
state.info_raw.colortype = LCT_PALETTE;
state.info_raw.bitdepth = 8;
state.encoder.auto_convert = 0;
unsigned int error = lodepng_encode(&png, &pngsize, dds_GetBuffer(src), src->width, src->height, &state);
if (!error)
lodepng_save_file(png, pngsize, filename);
lodepng_state_cleanup(&state);
free(png);
return !error;
return FALSE;;
}