mirror of
https://github.com/CTCaer/RetroArch.git
synced 2024-12-14 22:38:34 +00:00
262 lines
6.5 KiB
C
262 lines
6.5 KiB
C
/* RetroArch - A frontend for libretro.
|
|
* Copyright (C) 2010-2012 - Hans-Kristian Arntzen
|
|
*
|
|
* RetroArch is free software: you can redistribute it and/or modify it under the terms
|
|
* of the GNU General Public License as published by the Free Software Found-
|
|
* ation, either version 3 of the License, or (at your option) any later version.
|
|
*
|
|
* RetroArch is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
|
|
* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
|
|
* PURPOSE. See the GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License along with RetroArch.
|
|
* If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include "screenshot.h"
|
|
#include "compat/strl.h"
|
|
#include <stdio.h>
|
|
#include <time.h>
|
|
#include "boolean.h"
|
|
#include <stdint.h>
|
|
#include <string.h>
|
|
#include "general.h"
|
|
#include "file.h"
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
#include "config.h"
|
|
#endif
|
|
|
|
#ifdef HAVE_LIBPNG
|
|
#include <png.h>
|
|
#endif
|
|
|
|
#ifdef HAVE_LIBPNG
|
|
static png_structp png_ptr;
|
|
static png_infop png_info_ptr;
|
|
|
|
static void destroy_png(void)
|
|
{
|
|
if (png_ptr)
|
|
png_destroy_write_struct(&png_ptr, &png_info_ptr);
|
|
}
|
|
|
|
static bool write_header_png(FILE *file, unsigned width, unsigned height)
|
|
{
|
|
png_ptr = png_create_write_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);
|
|
if (!png_ptr)
|
|
return false;
|
|
|
|
if (setjmp(png_jmpbuf(png_ptr)))
|
|
goto error;
|
|
|
|
png_info_ptr = png_create_info_struct(png_ptr);
|
|
if (!png_info_ptr)
|
|
goto error;
|
|
|
|
png_init_io(png_ptr, file);
|
|
|
|
png_set_IHDR(png_ptr, png_info_ptr, width, height, 8,
|
|
PNG_COLOR_TYPE_RGB, PNG_INTERLACE_NONE,
|
|
PNG_COMPRESSION_TYPE_DEFAULT, PNG_FILTER_TYPE_DEFAULT);
|
|
|
|
png_write_info(png_ptr, png_info_ptr);
|
|
png_set_compression_level(png_ptr, 2);
|
|
|
|
return true;
|
|
|
|
error:
|
|
destroy_png();
|
|
return false;
|
|
}
|
|
|
|
static void dump_lines_png(uint8_t **lines, int height)
|
|
{
|
|
if (setjmp(png_jmpbuf(png_ptr)))
|
|
{
|
|
RARCH_ERR("PNG: dump_lines_png() failed!\n");
|
|
goto end;
|
|
}
|
|
|
|
// PNG is top-down, BMP is bottom-up.
|
|
for (int i = 0, j = height - 1; i < j; i++, j--)
|
|
{
|
|
uint8_t *tmp = lines[i];
|
|
lines[i] = lines[j];
|
|
lines[j] = tmp;
|
|
}
|
|
|
|
png_set_rows(png_ptr, png_info_ptr, lines);
|
|
png_write_png(png_ptr, png_info_ptr, PNG_TRANSFORM_BGR, NULL);
|
|
png_write_end(png_ptr, NULL);
|
|
|
|
end:
|
|
destroy_png();
|
|
}
|
|
|
|
#else
|
|
|
|
static bool write_header_bmp(FILE *file, unsigned width, unsigned height)
|
|
{
|
|
unsigned line_size = (width * 3 + 3) & ~3;
|
|
unsigned size = line_size * height + 54;
|
|
unsigned size_array = line_size * height;
|
|
|
|
// Generic BMP stuff.
|
|
const uint8_t header[] = {
|
|
'B', 'M',
|
|
(uint8_t)(size >> 0), (uint8_t)(size >> 8), (uint8_t)(size >> 16), (uint8_t)(size >> 24),
|
|
0, 0, 0, 0,
|
|
54, 0, 0, 0,
|
|
40, 0, 0, 0,
|
|
(uint8_t)(width >> 0), (uint8_t)(width >> 8), (uint8_t)(width >> 16), (uint8_t)(width >> 24),
|
|
(uint8_t)(height >> 0), (uint8_t)(height >> 8), (uint8_t)(height >> 16), (uint8_t)(height >> 24),
|
|
1, 0,
|
|
24, 0,
|
|
0, 0, 0, 0,
|
|
(uint8_t)(size_array >> 0), (uint8_t)(size_array >> 8), (uint8_t)(size_array >> 16), (uint8_t)(size_array >> 24),
|
|
19, 11, 0, 0,
|
|
19, 11, 0, 0,
|
|
0, 0, 0, 0,
|
|
0, 0, 0, 0
|
|
};
|
|
|
|
return fwrite(header, 1, sizeof(header), file) == sizeof(header);
|
|
}
|
|
|
|
static void dump_lines_file(FILE *file, uint8_t **lines, size_t line_size, unsigned height)
|
|
{
|
|
for (unsigned i = 0; i < height; i++)
|
|
fwrite(lines[i], 1, line_size, file);
|
|
}
|
|
|
|
#endif
|
|
|
|
static void dump_line_bgr(uint8_t *line, const uint8_t *src, unsigned width)
|
|
{
|
|
memcpy(line, src, width * 3);
|
|
}
|
|
|
|
static void dump_line_16(uint8_t *line, const uint16_t *src, unsigned width)
|
|
{
|
|
for (unsigned i = 0; i < width; i++)
|
|
{
|
|
uint16_t pixel = *src++;
|
|
uint8_t b = (pixel >> 0) & 0x1f;
|
|
uint8_t g = (pixel >> 5) & 0x3f;
|
|
uint8_t r = (pixel >> 11) & 0x1f;
|
|
*line++ = (b << 3) | (b >> 2);
|
|
*line++ = (g << 2) | (g >> 4);
|
|
*line++ = (r << 3) | (r >> 2);
|
|
}
|
|
}
|
|
|
|
static void dump_line_32(uint8_t *line, const uint32_t *src, unsigned width)
|
|
{
|
|
for (unsigned i = 0; i < width; i++)
|
|
{
|
|
uint32_t pixel = *src++;
|
|
*line++ = (pixel >> 0) & 0xff;
|
|
*line++ = (pixel >> 8) & 0xff;
|
|
*line++ = (pixel >> 16) & 0xff;
|
|
}
|
|
}
|
|
|
|
static void dump_content(FILE *file, const void *frame,
|
|
int width, int height, int pitch, bool bgr24)
|
|
{
|
|
union
|
|
{
|
|
const uint8_t *u8;
|
|
const uint16_t *u16;
|
|
const uint32_t *u32;
|
|
} u;
|
|
u.u8 = (const uint8_t*)frame;
|
|
|
|
uint8_t **lines = (uint8_t**)calloc(height, sizeof(uint8_t*));
|
|
if (!lines)
|
|
return;
|
|
|
|
size_t line_size = (width * 3 + 3) & ~3;
|
|
|
|
for (int i = 0; i < height; i++)
|
|
{
|
|
lines[i] = (uint8_t*)calloc(1, line_size);
|
|
if (!lines[i])
|
|
goto end;
|
|
}
|
|
|
|
if (bgr24) // BGR24 byte order. Can directly copy.
|
|
{
|
|
for (int j = 0; j < height; j++, u.u8 += pitch)
|
|
dump_line_bgr(lines[j], u.u8, width);
|
|
}
|
|
else if (g_extern.system.pix_fmt == RETRO_PIXEL_FORMAT_XRGB8888)
|
|
{
|
|
for (int j = 0; j < height; j++, u.u8 += pitch)
|
|
dump_line_32(lines[j], u.u32, width);
|
|
}
|
|
else // RGB565
|
|
{
|
|
for (int j = 0; j < height; j++, u.u8 += pitch)
|
|
dump_line_16(lines[j], u.u16, width);
|
|
}
|
|
|
|
#ifdef HAVE_LIBPNG
|
|
dump_lines_png(lines, height);
|
|
#else
|
|
dump_lines_file(file, lines, line_size, height);
|
|
#endif
|
|
|
|
end:
|
|
for (int i = 0; i < height; i++)
|
|
free(lines[i]);
|
|
free(lines);
|
|
}
|
|
|
|
void screenshot_generate_filename(char *filename, size_t size)
|
|
{
|
|
time_t cur_time;
|
|
time(&cur_time);
|
|
|
|
#ifdef HAVE_LIBPNG
|
|
#define IMG_EXT "png"
|
|
#else
|
|
#define IMG_EXT "bmp"
|
|
#endif
|
|
|
|
strftime(filename, size, "RetroArch-%m%d-%H%M%S." IMG_EXT, localtime(&cur_time));
|
|
}
|
|
|
|
bool screenshot_dump(const char *folder, const void *frame,
|
|
unsigned width, unsigned height, int pitch, bool bgr24)
|
|
{
|
|
char filename[PATH_MAX];
|
|
char shotname[PATH_MAX];
|
|
|
|
screenshot_generate_filename(shotname, sizeof(shotname));
|
|
fill_pathname_join(filename, folder, shotname, sizeof(filename));
|
|
|
|
FILE *file = fopen(filename, "wb");
|
|
if (!file)
|
|
{
|
|
RARCH_ERR("Failed to open file \"%s\" for screenshot.\n", filename);
|
|
return false;
|
|
}
|
|
|
|
#ifdef HAVE_LIBPNG
|
|
bool ret = write_header_png(file, width, height);
|
|
#else
|
|
bool ret = write_header_bmp(file, width, height);
|
|
#endif
|
|
|
|
if (ret)
|
|
dump_content(file, frame, width, height, pitch, bgr24);
|
|
else
|
|
RARCH_ERR("Failed to write image header.\n");
|
|
|
|
fclose(file);
|
|
return ret;
|
|
}
|
|
|