mirror of
https://github.com/libretro/RetroArch.git
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373 lines
9.6 KiB
C
373 lines
9.6 KiB
C
/* RetroArch - A frontend for libretro.
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* Copyright (C) 2010-2014 - Hans-Kristian Arntzen
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* Copyright (C) 2011-2015 - Daniel De Matteis
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*
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* RetroArch is free software: you can redistribute it and/or modify it under the terms
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* of the GNU General Public License as published by the Free Software Found-
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* ation, either version 3 of the License, or (at your option) any later version.
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*
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* RetroArch is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
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* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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* PURPOSE. See the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along with RetroArch.
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* If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <compat/strl.h>
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#include <stdio.h>
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#include <stddef.h>
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#include <time.h>
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#include <boolean.h>
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#include <stdint.h>
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#include <string.h>
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#include "general.h"
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#include "intl/intl.h"
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#include <file/file_path.h>
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#include "gfx/scaler/scaler.h"
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#include "retroarch.h"
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#include "runloop.h"
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#include "retroarch_logger.h"
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#include "screenshot.h"
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#include "gfx/video_viewport.h"
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#ifdef HAVE_ZLIB_DEFLATE
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#include <formats/rpng.h>
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#define IMG_EXT "png"
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#else
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#define IMG_EXT "bmp"
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static bool write_header_bmp(FILE *file, unsigned width, unsigned height)
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{
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unsigned line_size = (width * 3 + 3) & ~3;
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unsigned size = line_size * height + 54;
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unsigned size_array = line_size * height;
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/* Generic BMP stuff. */
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const uint8_t header[] = {
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'B', 'M',
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(uint8_t)(size >> 0), (uint8_t)(size >> 8),
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(uint8_t)(size >> 16), (uint8_t)(size >> 24),
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0, 0, 0, 0,
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54, 0, 0, 0,
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40, 0, 0, 0,
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(uint8_t)(width >> 0), (uint8_t)(width >> 8),
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(uint8_t)(width >> 16), (uint8_t)(width >> 24),
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(uint8_t)(height >> 0), (uint8_t)(height >> 8),
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(uint8_t)(height >> 16), (uint8_t)(height >> 24),
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1, 0,
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24, 0,
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0, 0, 0, 0,
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(uint8_t)(size_array >> 0), (uint8_t)(size_array >> 8),
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(uint8_t)(size_array >> 16), (uint8_t)(size_array >> 24),
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19, 11, 0, 0,
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19, 11, 0, 0,
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0, 0, 0, 0,
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0, 0, 0, 0
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};
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return fwrite(header, 1, sizeof(header), file) == sizeof(header);
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}
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static void dump_lines_file(FILE *file, uint8_t **lines,
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size_t line_size, unsigned height)
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{
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unsigned i;
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for (i = 0; i < height; i++)
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fwrite(lines[i], 1, line_size, file);
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}
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static void dump_line_bgr(uint8_t *line, const uint8_t *src, unsigned width)
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{
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memcpy(line, src, width * 3);
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}
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static void dump_line_16(uint8_t *line, const uint16_t *src, unsigned width)
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{
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unsigned i;
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for (i = 0; i < width; i++)
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{
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uint16_t pixel = *src++;
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uint8_t b = (pixel >> 0) & 0x1f;
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uint8_t g = (pixel >> 5) & 0x3f;
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uint8_t r = (pixel >> 11) & 0x1f;
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*line++ = (b << 3) | (b >> 2);
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*line++ = (g << 2) | (g >> 4);
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*line++ = (r << 3) | (r >> 2);
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}
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}
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static void dump_line_32(uint8_t *line, const uint32_t *src, unsigned width)
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{
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unsigned i;
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for (i = 0; i < width; i++)
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{
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uint32_t pixel = *src++;
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*line++ = (pixel >> 0) & 0xff;
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*line++ = (pixel >> 8) & 0xff;
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*line++ = (pixel >> 16) & 0xff;
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}
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}
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static void dump_content(FILE *file, const void *frame,
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int width, int height, int pitch, bool bgr24)
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{
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size_t line_size;
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int i, j;
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uint8_t **lines;
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union
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{
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const uint8_t *u8;
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const uint16_t *u16;
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const uint32_t *u32;
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} u;
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u.u8 = (const uint8_t*)frame;
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lines = (uint8_t**)calloc(height, sizeof(uint8_t*));
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if (!lines)
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return;
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line_size = (width * 3 + 3) & ~3;
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for (i = 0; i < height; i++)
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{
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lines[i] = (uint8_t*)calloc(1, line_size);
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if (!lines[i])
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goto end;
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}
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if (bgr24) /* BGR24 byte order. Can directly copy. */
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{
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for (j = 0; j < height; j++, u.u8 += pitch)
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dump_line_bgr(lines[j], u.u8, width);
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}
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else if (g_extern.system.pix_fmt == RETRO_PIXEL_FORMAT_XRGB8888)
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{
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for (j = 0; j < height; j++, u.u8 += pitch)
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dump_line_32(lines[j], u.u32, width);
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}
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else /* RGB565 */
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{
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for (j = 0; j < height; j++, u.u8 += pitch)
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dump_line_16(lines[j], u.u16, width);
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}
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dump_lines_file(file, lines, line_size, height);
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end:
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for (i = 0; i < height; i++)
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free(lines[i]);
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free(lines);
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}
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#endif
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static bool take_screenshot_viewport(void)
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{
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char screenshot_path[PATH_MAX_LENGTH];
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const char *screenshot_dir = NULL;
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uint8_t *buffer = NULL;
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bool retval = false;
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struct video_viewport vp = {0};
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if (driver.video && driver.video->viewport_info)
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driver.video->viewport_info(driver.video_data, &vp);
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if (!vp.width || !vp.height)
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return false;
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if (!(buffer = (uint8_t*)malloc(vp.width * vp.height * 3)))
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return false;
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if (driver.video && driver.video->read_viewport)
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if (!driver.video->read_viewport(driver.video_data, buffer))
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goto done;
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screenshot_dir = g_settings.screenshot_directory;
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if (!*g_settings.screenshot_directory)
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{
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fill_pathname_basedir(screenshot_path, g_extern.basename,
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sizeof(screenshot_path));
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screenshot_dir = screenshot_path;
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}
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/* Data read from viewport is in bottom-up order, suitable for BMP. */
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if (!screenshot_dump(screenshot_dir, buffer, vp.width, vp.height,
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vp.width * 3, true))
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goto done;
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retval = true;
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done:
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if (buffer)
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free(buffer);
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return retval;
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}
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static bool take_screenshot_raw(void)
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{
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char screenshot_path[PATH_MAX_LENGTH];
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const void *data = g_extern.frame_cache.data;
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unsigned width = g_extern.frame_cache.width;
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unsigned height = g_extern.frame_cache.height;
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int pitch = g_extern.frame_cache.pitch;
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const char *screenshot_dir = g_settings.screenshot_directory;
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if (!*g_settings.screenshot_directory)
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{
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fill_pathname_basedir(screenshot_path, g_extern.basename,
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sizeof(screenshot_path));
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screenshot_dir = screenshot_path;
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}
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/* Negative pitch is needed as screenshot takes bottom-up,
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* but we use top-down.
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*/
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return screenshot_dump(screenshot_dir,
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(const uint8_t*)data + (height - 1) * pitch,
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width, height, -pitch, false);
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}
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/**
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* take_screenshot:
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*
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* Returns: true (1) if successful, otherwise false (0).
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**/
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bool take_screenshot(void)
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{
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bool viewport_read = false;
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bool ret = true;
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const char *msg = NULL;
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/* No way to infer screenshot directory. */
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if ((!*g_settings.screenshot_directory) && (!*g_extern.basename))
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return false;
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viewport_read = (g_settings.video.gpu_screenshot ||
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g_extern.system.hw_render_callback.context_type
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!= RETRO_HW_CONTEXT_NONE) && driver.video->read_viewport &&
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driver.video->viewport_info;
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if (viewport_read)
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{
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#ifdef HAVE_MENU
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/* Avoid taking screenshot of GUI overlays. */
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if (driver.video_poke && driver.video_poke->set_texture_enable)
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driver.video_poke->set_texture_enable(driver.video_data,
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false, false);
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#endif
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if (driver.video)
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rarch_render_cached_frame();
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}
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if (viewport_read)
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ret = take_screenshot_viewport();
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else if (g_extern.frame_cache.data &&
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(g_extern.frame_cache.data != RETRO_HW_FRAME_BUFFER_VALID))
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ret = take_screenshot_raw();
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else
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RARCH_ERR(RETRO_LOG_TAKE_SCREENSHOT_ERROR);
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if (ret)
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{
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RARCH_LOG(RETRO_LOG_TAKE_SCREENSHOT);
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msg = RETRO_MSG_TAKE_SCREENSHOT;
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}
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else
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{
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RARCH_WARN(RETRO_LOG_TAKE_SCREENSHOT_FAILED);
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msg = RETRO_MSG_TAKE_SCREENSHOT_FAILED;
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}
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rarch_main_msg_queue_push(msg, 1, g_runloop.is_paused ? 1 : 180, true);
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if (g_runloop.is_paused)
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rarch_render_cached_frame();
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return ret;
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}
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/* Take frame bottom-up. */
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bool screenshot_dump(const char *folder, const void *frame,
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unsigned width, unsigned height, int pitch, bool bgr24)
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{
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char filename[PATH_MAX_LENGTH];
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char shotname[PATH_MAX_LENGTH];
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struct scaler_ctx scaler = {0};
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FILE *file = NULL;
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uint8_t *out_buffer = NULL;
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bool ret = false;
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(void)file;
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(void)out_buffer;
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(void)scaler;
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fill_dated_filename(shotname, IMG_EXT, sizeof(shotname));
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fill_pathname_join(filename, folder, shotname, sizeof(filename));
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#ifdef HAVE_ZLIB_DEFLATE
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out_buffer = (uint8_t*)malloc(width * height * 3);
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if (!out_buffer)
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return false;
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scaler.in_width = width;
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scaler.in_height = height;
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scaler.out_width = width;
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scaler.out_height = height;
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scaler.in_stride = -pitch;
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scaler.out_stride = width * 3;
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scaler.out_fmt = SCALER_FMT_BGR24;
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scaler.scaler_type = SCALER_TYPE_POINT;
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if (bgr24)
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scaler.in_fmt = SCALER_FMT_BGR24;
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else if (g_extern.system.pix_fmt == RETRO_PIXEL_FORMAT_XRGB8888)
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scaler.in_fmt = SCALER_FMT_ARGB8888;
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else
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scaler.in_fmt = SCALER_FMT_RGB565;
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scaler_ctx_gen_filter(&scaler);
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scaler_ctx_scale(&scaler, out_buffer,
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(const uint8_t*)frame + ((int)height - 1) * pitch);
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scaler_ctx_gen_reset(&scaler);
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RARCH_LOG("Using RPNG for PNG screenshots.\n");
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ret = rpng_save_image_bgr24(filename,
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out_buffer, width, height, width * 3);
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if (!ret)
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RARCH_ERR("Failed to take screenshot.\n");
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free(out_buffer);
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#else
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file = fopen(filename, "wb");
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if (!file)
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{
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RARCH_ERR("Failed to open file \"%s\" for screenshot.\n", filename);
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return false;
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}
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ret = write_header_bmp(file, width, height);
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if (ret)
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dump_content(file, frame, width, height, pitch, bgr24);
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else
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RARCH_ERR("Failed to write image header.\n");
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fclose(file);
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#endif
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return ret;
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}
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