mirror of
https://github.com/libretro/RetroArch
synced 2025-03-27 23:37:39 +00:00
Start adding snes state tracker uniforms.
This commit is contained in:
Themaister
parent
380384654c
commit
4e7a003497
2
Makefile
2
Makefile
@ -92,7 +92,7 @@ ifeq ($(HAVE_CG), 1)
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endif
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ifeq ($(HAVE_XML), 1)
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OBJ += gfx/shader_glsl.o gfx/image.o sha256.o cheats.o
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OBJ += gfx/shader_glsl.o gfx/image.o gfx/snes_state.o sha256.o cheats.o
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LIBS += $(XML_LIBS)
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DEFINES += $(XML_CFLAGS)
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endif
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@ -58,7 +58,7 @@ ifeq ($(HAVE_RSOUND), 1)
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endif
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ifeq ($(HAVE_XML), 1)
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OBJ += gfx/shader_glsl.o gfx/image.o sha256.o cheats.o
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OBJ += gfx/shader_glsl.o gfx/image.o gfx/snes_state.o sha256.o cheats.o
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DEFINES += $(XML_CFLAGS) -DHAVE_XML
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LIBS += -lxml2
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endif
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@ -58,7 +58,7 @@ ifeq ($(HAVE_RSOUND), 1)
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endif
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ifeq ($(HAVE_XML), 1)
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OBJ += gfx/shader_glsl.o gfx/image.o sha256.o cheats.o
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OBJ += gfx/shader_glsl.o gfx/image.o gfx/snes_state.o sha256.o cheats.o
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DEFINES += $(XML_CFLAGS) -DHAVE_XML -DLIBXML_STATIC
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LIBS += -lxml2 -lz -lws2_32
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endif
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142
gfx/snes_state.c
Normal file
142
gfx/snes_state.c
Normal file
@ -0,0 +1,142 @@
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/* SSNES - A Super Nintendo Entertainment System (SNES) Emulator frontend for libsnes.
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* Copyright (C) 2010-2011 - Hans-Kristian Arntzen
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*
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* Some code herein may be based on code found in BSNES.
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*
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* SSNES 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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* SSNES 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 SSNES.
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* If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "snes_state.h"
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#include <stdlib.h>
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#include <assert.h>
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#include "strl.h"
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struct snes_tracker_internal
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{
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char id[64];
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const uint8_t *ptr;
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uint32_t addr;
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enum snes_tracker_type type;
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uint8_t prev[2];
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int frame_count;
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uint8_t old_value;
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};
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struct snes_tracker
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{
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struct snes_tracker_internal *info;
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unsigned info_elem;
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};
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snes_tracker_t* snes_tracker_init(const struct snes_tracker_info *info)
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{
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snes_tracker_t *tracker = calloc(1, sizeof(*tracker));
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if (!tracker)
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return NULL;
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tracker->info = calloc(info->info_elem, sizeof(struct snes_tracker_internal));
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tracker->info_elem = info->info_elem;
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for (unsigned i = 0; i < info->info_elem; i++)
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{
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strlcpy(tracker->info[i].id, info->info[i].id, sizeof(tracker->info[i].id));
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tracker->info[i].addr = info->info[i].addr;
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tracker->info[i].type = info->info[i].type;
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assert(info->wram && info->vram && info->cgram &&
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info->oam && info->apuram);
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switch (info->info[i].ram_type)
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{
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case SSNES_STATE_WRAM:
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tracker->info[i].ptr = info->wram;
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break;
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case SSNES_STATE_APURAM:
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tracker->info[i].ptr = info->apuram;
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break;
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case SSNES_STATE_OAM:
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tracker->info[i].ptr = info->oam;
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break;
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case SSNES_STATE_CGRAM:
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tracker->info[i].ptr = info->cgram;
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break;
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case SSNES_STATE_VRAM:
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tracker->info[i].ptr = info->vram;
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break;
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default:
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tracker->info[i].ptr = NULL;
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}
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}
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return tracker;
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}
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void snes_tracker_free(snes_tracker_t *tracker)
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{
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free(tracker->info);
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free(tracker);
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}
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static void update_element(
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struct snes_tracker_uniform *uniform,
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struct snes_tracker_internal *info,
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unsigned frame_count)
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{
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uniform->id = info->id;
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switch (info->type)
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{
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case SSNES_STATE_CAPTURE:
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uniform->value = info->ptr[info->addr];
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break;
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case SSNES_STATE_TRANSITION:
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if (info->old_value != info->ptr[info->addr])
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{
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info->old_value = info->ptr[info->addr];
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info->frame_count = frame_count;
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uniform->value = info->frame_count;
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}
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else
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uniform->value = info->frame_count;
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break;
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case SSNES_STATE_CAPTURE_PREV:
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if (info->prev[0] != info->ptr[info->addr])
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{
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info->prev[1] = info->prev[0];
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info->prev[0] = info->ptr[info->addr];
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}
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uniform->value = info->prev[1];
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break;
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default:
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break;
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}
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}
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unsigned snes_get_uniform(snes_tracker_t *tracker, struct snes_tracker_uniform *uniforms, unsigned elem, unsigned frame_count)
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{
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unsigned elems = tracker->info_elem < elem ? tracker->info_elem : elem;
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for (unsigned i = 0; i < elems; i++)
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update_element(&uniforms[i], &tracker->info[i], frame_count);
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return elems;
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}
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72
gfx/snes_state.h
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72
gfx/snes_state.h
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@ -0,0 +1,72 @@
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/* SSNES - A Super Nintendo Entertainment System (SNES) Emulator frontend for libsnes.
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* Copyright (C) 2010-2011 - Hans-Kristian Arntzen
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*
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* Some code herein may be based on code found in BSNES.
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*
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* SSNES 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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* SSNES 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 SSNES.
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* If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __SSNES_SNES_STATE_H
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#define __SSNES_SNES_STATE_H
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#include <stdint.h>
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enum snes_tracker_type
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{
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SSNES_STATE_CAPTURE,
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SSNES_STATE_TRANSITION,
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SSNES_STATE_CAPTURE_PREV
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};
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enum snes_ram_type
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{
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SSNES_STATE_WRAM,
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SSNES_STATE_APURAM,
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SSNES_STATE_OAM,
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SSNES_STATE_CGRAM,
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SSNES_STATE_VRAM
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};
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struct snes_tracker_uniform_info
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{
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const char *id;
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uint32_t addr;
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enum snes_tracker_type type;
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enum snes_ram_type ram_type;
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};
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struct snes_tracker_info
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{
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const uint8_t *wram;
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const uint8_t *vram;
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const uint8_t *cgram;
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const uint8_t *oam;
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const uint8_t *apuram;
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const struct snes_tracker_uniform_info *info;
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unsigned info_elem;
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};
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struct snes_tracker_uniform
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{
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const char *id;
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int value;
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};
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typedef struct snes_tracker snes_tracker_t;
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snes_tracker_t* snes_tracker_init(const struct snes_tracker_info *info);
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void snes_tracker_free(snes_tracker_t *tracker);
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unsigned snes_get_uniform(snes_tracker_t *tracker, struct snes_tracker_uniform *uniforms, unsigned elem, unsigned frame_count);
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#endif
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