RetroArch/cores/image_core.c
2015-09-20 10:32:12 +02:00

245 lines
5.5 KiB
C

#include <stdio.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include <assert.h>
#include <boolean.h>
#define STB_IMAGE_IMPLEMENTATION
#ifdef RARCH_INTERNAL
#define STBI_NO_PSD
#define STBI_NO_GIF
#define STBI_NO_HDR
#define STBI_NO_PIC
#define STBI_NO_PNM
#define STBI_SUPPORT_ZLIB
#endif
#include "../deps/stb/stb_image.h"
#ifdef RARCH_INTERNAL
#include "internal_cores.h"
#include "../libretro.h"
#define IMAGE_CORE_PREFIX(s) libretro_imageviewer_##s
#else
#include "libretro.h"
#define IMAGE_CORE_PREFIX(s) s
#endif
static retro_log_printf_t IMAGE_CORE_PREFIX(log_cb);
static retro_video_refresh_t IMAGE_CORE_PREFIX(video_cb);
static retro_input_poll_t IMAGE_CORE_PREFIX(input_poll_cb);
static retro_input_state_t IMAGE_CORE_PREFIX(input_state_cb);
static retro_audio_sample_batch_t IMAGE_CORE_PREFIX(audio_batch_cb);
static retro_environment_t IMAGE_CORE_PREFIX(environ_cb);
static uint32_t* image_buffer;
static int image_width;
static int image_height;
static bool image_uploaded;
#if 0
#define DUPE_TEST
#endif
void IMAGE_CORE_PREFIX(retro_get_system_info)(struct retro_system_info *info)
{
info->library_name = "image display";
info->library_version = "v0.1";
info->need_fullpath = true;
info->block_extract = false;
#ifdef RARCH_INTERNAL
info->valid_extensions = "jpg|jpeg|png|bmp|tga";
#else
info->valid_extensions = "jpg|jpeg|png|bmp|psd|tga|gif|hdr|pic|ppm|pgm";
#endif
}
void IMAGE_CORE_PREFIX(retro_get_system_av_info)(struct retro_system_av_info *info)
{
info->geometry.base_width = image_width;
info->geometry.base_height = image_height;
info->geometry.max_width = image_width;
info->geometry.max_height = image_height;
info->geometry.aspect_ratio = 0;
info->timing.fps = 60.0;
info->timing.sample_rate = 44100.0;
}
void IMAGE_CORE_PREFIX(retro_init)(void)
{
struct retro_log_callback log;
if (IMAGE_CORE_PREFIX(environ_cb)(RETRO_ENVIRONMENT_GET_LOG_INTERFACE, &log))
IMAGE_CORE_PREFIX(log_cb) = log.log;
else
IMAGE_CORE_PREFIX(log_cb) = NULL;
image_buffer = NULL;
image_width = 0;
image_height = 0;
}
void IMAGE_CORE_PREFIX(retro_deinit)(void)
{
if (image_buffer)
free(image_buffer);
image_buffer = NULL;
image_width = 0;
image_height = 0;
}
void IMAGE_CORE_PREFIX(retro_set_environment)(retro_environment_t cb)
{
static const struct retro_variable vars[] = {
{ NULL, NULL },
};
IMAGE_CORE_PREFIX(environ_cb) = cb;
cb(RETRO_ENVIRONMENT_SET_VARIABLES, (void*)vars);
}
void IMAGE_CORE_PREFIX(retro_set_video_refresh)(retro_video_refresh_t cb)
{
IMAGE_CORE_PREFIX(video_cb) = cb;
}
void IMAGE_CORE_PREFIX(retro_set_audio_sample)(retro_audio_sample_t unused)
{
}
void IMAGE_CORE_PREFIX(retro_set_audio_sample_batch)(retro_audio_sample_batch_t cb)
{
IMAGE_CORE_PREFIX(audio_batch_cb) = cb;
}
void IMAGE_CORE_PREFIX(retro_set_input_poll)(retro_input_poll_t cb)
{
IMAGE_CORE_PREFIX(input_poll_cb) = cb;
}
void IMAGE_CORE_PREFIX(retro_set_input_state)(retro_input_state_t cb)
{
IMAGE_CORE_PREFIX(input_state_cb) = cb;
}
void IMAGE_CORE_PREFIX(retro_set_controller_port_device)(unsigned a, unsigned b)
{
}
void IMAGE_CORE_PREFIX(retro_reset)(void)
{
image_uploaded = false;
}
size_t IMAGE_CORE_PREFIX(retro_serialize_size)(void)
{
return 0;
}
bool IMAGE_CORE_PREFIX(retro_serialize)(void *data, size_t size)
{
(void)data;
(void)size;
return false;
}
bool IMAGE_CORE_PREFIX(retro_unserialize)(const void *data, size_t size)
{
(void)data;
(void)size;
return false;
}
void IMAGE_CORE_PREFIX(retro_cheat_reset)(void)
{
}
void IMAGE_CORE_PREFIX(retro_cheat_set)(unsigned a, bool b, const char * c)
{
}
bool IMAGE_CORE_PREFIX(retro_load_game)(const struct retro_game_info *info)
{
int comp;
uint32_t *buf, *end;
enum retro_pixel_format fmt = RETRO_PIXEL_FORMAT_XRGB8888;
image_buffer = (uint32_t*)stbi_load (info->path,&image_width, &image_height, &comp, 4);
/* RGBA > XRGB8888 */
buf = &image_buffer[0];
end = buf + (image_width*image_height*sizeof(uint32_t))/4;
while(buf < end)
{
uint32_t pixel = *buf;
*buf = (pixel & 0xff00ff00) | ((pixel << 16) & 0x00ff0000) | ((pixel >> 16) & 0xff);
buf++;
}
if (!IMAGE_CORE_PREFIX(environ_cb)(RETRO_ENVIRONMENT_SET_PIXEL_FORMAT, &fmt))
{
if (IMAGE_CORE_PREFIX(log_cb))
IMAGE_CORE_PREFIX(log_cb)(RETRO_LOG_INFO, "XRGB8888 is not supported.\n");
return false;
}
return true;
}
bool IMAGE_CORE_PREFIX(retro_load_game_special)(unsigned a, const struct retro_game_info *b, size_t c)
{
return false;
}
void IMAGE_CORE_PREFIX(retro_unload_game)(void)
{
if (image_buffer)
free(image_buffer);
image_buffer = NULL;
image_width = 0;
image_height = 0;
}
unsigned IMAGE_CORE_PREFIX(retro_get_region)(void)
{
return RETRO_REGION_NTSC;
}
void *IMAGE_CORE_PREFIX(retro_get_memory_data)(unsigned id)
{
return NULL;
}
size_t IMAGE_CORE_PREFIX(retro_get_memory_size)(unsigned id)
{
return 0;
}
void IMAGE_CORE_PREFIX(retro_run)(void)
{
IMAGE_CORE_PREFIX(input_poll_cb)();
#ifdef DUPE_TEST
if (!image_uploaded)
{
IMAGE_CORE_PREFIX(video_cb)(image_buffer, image_width, image_height, image_width * sizeof(uint32_t));
image_uploaded = true;
}
else
IMAGE_CORE_PREFIX(video_cb)(NULL, image_width, image_height, image_width * sizeof(uint32_t));
#else
IMAGE_CORE_PREFIX(video_cb)(image_buffer, image_width, image_height, image_width * sizeof(uint32_t));
#endif
}
unsigned IMAGE_CORE_PREFIX(retro_api_version)(void)
{
return RETRO_API_VERSION;
}