libretro/beetle-pce-fast-libretro
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Fix PAL PSX crashes due to insufficient framebuffer

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This commit is contained in:
pinumbernumber 2013-10-01 13:28:59 +01:00
parent 4954872605
commit 3a494ee6ca
1 changed files with 40 additions and 9 deletions
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47
libretro.cpp
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@ -54,14 +54,15 @@ static Deinterlacer deint;
#define MEDNAFEN_CORE_NAME "Mednafen PSX"
#define MEDNAFEN_CORE_VERSION "v0.9.32"
#define MEDNAFEN_CORE_EXTENSIONS "cue|toc|m3u|ccd"
#define MEDNAFEN_CORE_TIMING_FPS 59.82704 // Hardcoded for NTSC atm.
static int mednafen_psx_fps = 59.82704; // Hardcoded for NTSC atm.
#define MEDNAFEN_CORE_GEOMETRY_BASE_W 320
#define MEDNAFEN_CORE_GEOMETRY_BASE_H 240
#define MEDNAFEN_CORE_GEOMETRY_MAX_W 700
#define MEDNAFEN_CORE_GEOMETRY_MAX_H 480
#define MEDNAFEN_CORE_GEOMETRY_ASPECT_RATIO (4.0 / 3.0)
#define FB_WIDTH 700
#define FB_HEIGHT 480
static int mednafen_psx_fb_height;
static bool is_pal = false;
#elif defined(WANT_PCE_FAST_EMU)
#include "mednafen/cdrom/pcecd.h"
@ -163,10 +164,18 @@ static Deinterlacer deint;
#define FB_HEIGHT 480
#endif
#ifdef WANT_16BPP
static uint16_t mednafen_buf[FB_WIDTH * FB_HEIGHT];
#if defined(WANT_PSX_EMU)
#define FB_MAX_HEIGHT 576
#else
static uint32_t mednafen_buf[FB_WIDTH * FB_HEIGHT];
#define FB_MAX_HEIGHT FB_HEIGHT
#endif
// Wastes a little space for NTSC PSX, but better than dynamically allocating.
#ifdef WANT_16BPP
static uint16_t mednafen_buf[FB_WIDTH * FB_MAX_HEIGHT];
#else
static uint32_t mednafen_buf[FB_WIDTH * FB_MAX_HEIGHT];
#endif
const char *mednafen_core_str = MEDNAFEN_CORE_NAME;
@ -195,6 +204,13 @@ unsigned CalcDiscSCEx();
using MDFN_IEN_PSX::CD_SelectedDisc;
using MDFN_IEN_PSX::cdifs;
enum
{
REGION_JP = 0,
REGION_NA = 1,
REGION_EU = 2,
};
static unsigned disk_get_num_images(void)
{
return cdifs ? cdifs->size() : 0;
@ -684,7 +700,14 @@ bool retro_load_game(const struct retro_game_info *info)
MDFN_PixelFormat pix_fmt(MDFN_COLORSPACE_RGB, 16, 8, 0, 24);
memset(&last_pixel_format, 0, sizeof(MDFN_PixelFormat));
#if defined(WANT_PSX_EMU)
is_pal = (CalcDiscSCEx() == REGION_EU);
mednafen_psx_fb_height = is_pal ? 576 : 480;
mednafen_psx_fps = is_pal ? 50.0 : 59.82704;
surf = new MDFN_Surface(mednafen_buf, FB_WIDTH, mednafen_psx_fb_height, FB_WIDTH, pix_fmt);
#else
surf = new MDFN_Surface(mednafen_buf, FB_WIDTH, FB_HEIGHT, FB_WIDTH, pix_fmt);
#endif
#ifdef NEED_DEINTERLACER
PrevInterlaced = false;
@ -1057,7 +1080,7 @@ void retro_run()
update_input();
static int16_t sound_buf[0x10000];
static MDFN_Rect rects[FB_HEIGHT];
static MDFN_Rect rects[FB_MAX_HEIGHT];
rects[0].w = ~0;
EmulateSpecStruct spec = {0};
@ -1196,7 +1219,11 @@ void retro_get_system_info(struct retro_system_info *info)
void retro_get_system_av_info(struct retro_system_av_info *info)
{
memset(info, 0, sizeof(*info));
info->timing.fps = MEDNAFEN_CORE_TIMING_FPS; // Determined from empirical testing.
#ifdef WANT_PSX_EMU
info->timing.fps = mednafen_psx_fps; // Determined for NTSC from empirical testing.
#else
info->timing.fps = MEDNAFEN_CORE_TIMING_FPS;
#endif
info->timing.sample_rate = 44100;
info->geometry.base_width = MEDNAFEN_CORE_GEOMETRY_BASE_W;
info->geometry.base_height = MEDNAFEN_CORE_GEOMETRY_BASE_H;
@ -1219,7 +1246,11 @@ void retro_deinit()
unsigned retro_get_region(void)
{
return RETRO_REGION_NTSC;
#ifdef WANT_PSX_EMU
return is_pal ? RETRO_REGION_PAL : RETRO_REGION_NTSC;
#else
return RETRO_REGION_NTSC; // FIXME: Regions for other cores.
#endif
}
unsigned retro_api_version(void)