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(libretro) Prevent illegal usage of RETRO_ENVIRONMENT_SET_SYSTEM_AV_INFO/RETRO_ENVIRONMENT_SET_GEOMETRY environment callbacks

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jdgleaver 2022-04-05 10:53:16 +01:00 • committed by irixxxx
parent a987b67801
commit 906cc85456
1 changed files with 33 additions and 16 deletions
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49
platform/libretro/libretro.c
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@ -102,6 +102,9 @@ static int vout_width, vout_height, vout_offset;
static float vout_aspect = 0.0;
static int vout_ghosting = 0;
static bool libretro_update_av_info = false;
static bool libretro_update_geometry = false;
#if defined(RENDER_GSKIT_PS2)
#define VOUT_8BIT_WIDTH 328
#define VOUT_8BIT_HEIGHT 256
@ -603,8 +606,6 @@ static void apply_renderer()
void emu_video_mode_change(int start_line, int line_count, int start_col, int col_count)
{
struct retro_system_av_info av_info;
vm_current_start_line = start_line;
vm_current_line_count = line_count;
vm_current_start_col = start_col;
@ -653,9 +654,8 @@ void emu_video_mode_change(int start_line, int line_count, int start_col, int co
#endif
Pico.m.dirtyPal = 1;
// Update the geometry
retro_get_system_av_info(&av_info);
environ_cb(RETRO_ENVIRONMENT_SET_GEOMETRY, &av_info);
/* Notify frontend of geometry update */
libretro_update_geometry = true;
}
void emu_32x_startup(void)
@ -1327,6 +1327,15 @@ bool retro_load_game(const struct retro_game_info *info)
init_frameskip();
/* Initialisation routines may have 'triggered'
* a libretro AV info or geometry update; this
* happens automatically after retro_load_game(),
* so disable the relevant flags here to avoid
* redundant updates on the first call of
* retro_run() */
libretro_update_av_info = false;
libretro_update_geometry = false;
return true;
}
@ -1585,13 +1594,9 @@ static void update_variables(bool first_run)
vout_aspect = VOUT_PAR;
}
/* Notify frontend of geometry update */
if (vout_aspect != old_vout_aspect)
{
// Update the geometry
struct retro_system_av_info av_info;
retro_get_system_av_info(&av_info);
environ_cb(RETRO_ENVIRONMENT_SET_GEOMETRY, &av_info);
}
libretro_update_geometry = true;
var.value = NULL;
var.key = "picodrive_sprlim";
@ -1690,16 +1695,15 @@ static void update_variables(bool first_run)
var.value = NULL;
var.key = "picodrive_sound_rate";
if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value) {
new_sound_rate = atoi(var.value);
if (!strcmp(var.value, "native"))
new_sound_rate = YM2612_NATIVE_RATE();
new_sound_rate = YM2612_NATIVE_RATE();
else
new_sound_rate = atoi(var.value);
if (new_sound_rate != PicoIn.sndRate) {
/* Update the sound rate */
PicoIn.sndRate = new_sound_rate;
PsndRerate(!first_run);
struct retro_system_av_info av_info;
retro_get_system_av_info(&av_info);
environ_cb(RETRO_ENVIRONMENT_SET_SYSTEM_AV_INFO, &av_info);
libretro_update_av_info = true;
}
}
@ -1787,6 +1791,19 @@ void retro_run(void)
PicoFrame();
/* Check whether frontend needs to be notified
* of timing/geometry changes */
if (libretro_update_av_info || libretro_update_geometry) {
struct retro_system_av_info av_info;
retro_get_system_av_info(&av_info);
environ_cb(libretro_update_av_info ?
RETRO_ENVIRONMENT_SET_SYSTEM_AV_INFO :
RETRO_ENVIRONMENT_SET_GEOMETRY,
&av_info);
libretro_update_av_info = false;
libretro_update_geometry = false;
}
/* If frame was skipped, call video_cb() with
* a NULL buffer and return immediately */
if (PicoIn.skipFrame) {