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libretro-mpv
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Fix OpenGL initialisation 

get_proc_address must be called in context_reset() rather than in
retro_load_game().

Signed-off-by: Mahyar Koshkouei <mahyar.koshkouei@gmail.com>
This commit is contained in:
Mahyar Koshkouei 2018-01-01 18:08:30 +00:00
parent 7b12e813cc
commit 3b09221d3d
2 changed files with 75 additions and 72 deletions
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2
libretro-common

@ -1 +1 @@
Subproject commit d5cdb5af7301521826b339e21f007e8a0890833e
Subproject commit 8dd21acbe42b23110536e04efceaba66e5c7d3df

145
mpv-libretro.c
View File

@ -3,6 +3,7 @@
#include <string.h>
#include <math.h>
#include <stdlib.h>
#include <unistd.h>
#include <mpv/client.h>
#include <mpv/opengl_cb.h>
@ -23,6 +24,7 @@ static retro_input_state_t input_state_cb;
static mpv_handle *mpv;
static mpv_opengl_cb_context *mpv_gl;
static char *filepath = NULL;
static void fallback_log(enum retro_log_level level, const char *fmt, ...)
{
@ -40,8 +42,6 @@ void retro_init(void)
void retro_deinit(void)
{
mpv_opengl_cb_uninit_gl(mpv_gl);
mpv_terminate_destroy(mpv);
return;
}
@ -111,14 +111,83 @@ void retro_set_environment(retro_environment_t cb)
log_cb = fallback_log;
}
static void *get_proc_address_mpv(void *fn_ctx, const char *name)
{
#if 0
/* This doesn't work */
glsm_ctx_proc_address_t proc_info;
proc_info.addr = NULL;
if (!glsm_ctl(GLSM_CTL_PROC_ADDRESS_GET, NULL))
{
log_cb(RETRO_LOG_ERROR, "unable to get proc: %s\n", name);
return NULL;
}
return proc_info.addr(name);
#endif
/* This doesn't work either */
log_cb(RETRO_LOG_INFO, "attempting to obtain %s proc using %p at %p\n", name,
hw_render.get_proc_address, hw_render.get_proc_address(name));
return (void *) hw_render.get_proc_address(name);
}
static void context_reset(void)
{
log_cb(RETRO_LOG_DEBUG, "Context reset.\n");
const char *cmd[] = {"loadfile", filepath, NULL};
mpv = mpv_create();
if(!mpv)
{
log_cb(RETRO_LOG_ERROR, "failed creating context\n");
return;
}
if(mpv_initialize(mpv) < 0)
{
log_cb(RETRO_LOG_ERROR, "mpv init failed\n");
return;
}
// The OpenGL API is somewhat separate from the normal mpv API. This only
// returns NULL if no OpenGL support is compiled.
mpv_opengl_cb_context *mpv_gl = mpv_get_sub_api(mpv, MPV_SUB_API_OPENGL_CB);
if(!mpv_gl)
{
log_cb(RETRO_LOG_ERROR, "failed to create mpv GL API handle\n");
return;
}
if(mpv_opengl_cb_init_gl(mpv_gl, NULL, get_proc_address_mpv, NULL) < 0)
log_cb(RETRO_LOG_ERROR, "failed to initialize mpv GL context\n");
// Actually using the opengl_cb state has to be explicitly requested.
// Otherwise, mpv will create a separate platform window.
if(mpv_set_option_string(mpv, "vo", "opengl-cb") < 0)
{
log_cb(RETRO_LOG_ERROR, "failed to set VO");
return;
}
if(mpv_command(mpv, cmd) != 0)
{
log_cb(RETRO_LOG_ERROR, "failed issue mpv_command\n");
return;
}
log_cb(RETRO_LOG_INFO, "Context reset.\n");
}
static void context_destroy(void)
{
log_cb(RETRO_LOG_DEBUG, "Context destroyed.\n");
free(filepath);
filepath = NULL;
mpv_opengl_cb_uninit_gl(mpv_gl);
mpv_terminate_destroy(mpv);
log_cb(RETRO_LOG_INFO, "Context destroyed.\n");
}
#ifdef HAVE_OPENGLES
@ -225,30 +294,9 @@ bool retro_unserialize(const void *data_, size_t size)
return true;
}
static void *get_proc_address_mpv(void *fn_ctx, const char *name)
{
#if 0
/* This doesn't work */
glsm_ctx_proc_address_t proc_info;
proc_info.addr = NULL;
if (!glsm_ctl(GLSM_CTL_PROC_ADDRESS_GET, NULL))
{
log_cb(RETRO_LOG_ERROR, "unable to get proc: %s\n", name);
return NULL;
}
return proc_info.addr(name);
#endif
/* This doesn't work either */
log_cb(RETRO_LOG_INFO, "attempting to obtain %s proc using %p at %p\n", name,
hw_render.get_proc_address, hw_render.get_proc_address(name));
return (void *) hw_render.get_proc_address(name);
}
bool retro_load_game(const struct retro_game_info *info)
{
const char *cmd[] = {"loadfile", info->path, NULL};
filepath = strdup(info->path);
enum retro_pixel_format fmt = RETRO_PIXEL_FORMAT_XRGB8888;
if (!environ_cb(RETRO_ENVIRONMENT_SET_PIXEL_FORMAT, &fmt))
@ -261,51 +309,6 @@ bool retro_load_game(const struct retro_game_info *info)
log_cb(RETRO_LOG_ERROR, "HW Context could not be initialized\n");
return false;
}
mpv = mpv_create();
if(!mpv)
{
log_cb(RETRO_LOG_ERROR, "failed creating context\n");
return false;
}
if(mpv_initialize(mpv) < 0)
{
log_cb(RETRO_LOG_ERROR, "mpv init failed\n");
return false;
}
// The OpenGL API is somewhat separate from the normal mpv API. This only
// returns NULL if no OpenGL support is compiled.
mpv_opengl_cb_context *mpv_gl = mpv_get_sub_api(mpv, MPV_SUB_API_OPENGL_CB);
if(!mpv_gl)
{
log_cb(RETRO_LOG_ERROR, "failed to create mpv GL API handle\n");
return false;
}
if(mpv_opengl_cb_init_gl(mpv_gl, NULL, get_proc_address_mpv, NULL) < 0)
{
log_cb(RETRO_LOG_ERROR, "failed to initialize mpv GL context\n");
return false;
}
// Actually using the opengl_cb state has to be explicitly requested.
// Otherwise, mpv will create a separate platform window.
if(mpv_set_option_string(mpv, "vo", "opengl-cb") < 0)
{
log_cb(RETRO_LOG_ERROR, "failed to set VO");
return false;
}
if(mpv_command(mpv, cmd) != 0)
{
log_cb(RETRO_LOG_ERROR, "failed issue mpv_command\n");
return false;
}
return true;
}