v0.4.1 updates.

Makefile

@@ -67,7 +67,7 @@ ifeq ($(HAVE_PULSE), 1)
 endif
 
 ifeq ($(HAVE_SDL), 1)
-   OBJ += gfx/gl.o input/sdl.o audio/sdl.o audio/buffer.o
+   OBJ += gfx/sdl.o gfx/gl.o input/sdl.o audio/sdl.o audio/buffer.o
    DEFINES += $(SDL_CFLAGS)
    LIBS += $(SDL_LIBS)
 ifeq ($(OSX),1)
@@ -92,7 +92,7 @@ ifeq ($(HAVE_CG), 1)
 endif
 
 ifeq ($(HAVE_XML), 1)
-   OBJ += gfx/shader_glsl.o
+   OBJ += gfx/shader_glsl.o sha256.o cheats.o
    LIBS += $(XML_LIBS)
    DEFINES += $(XML_CFLAGS)
 endif

Makefile.win32

@@ -33,7 +33,7 @@ else
 endif
 
 ifeq ($(HAVE_SDL), 1)
-   OBJ += gfx/gl.o input/sdl.o audio/sdl.o audio/buffer.o
+   OBJ += gfx/sdl.o gfx/gl.o input/sdl.o audio/sdl.o audio/buffer.o
    LIBS += $(SDL_LIBS) -lopengl32
    DEFINES += $(SDL_CFLAGS) -DHAVE_SDL
 endif
@@ -50,7 +50,7 @@ ifeq ($(HAVE_RSOUND), 1)
 endif
 
 ifeq ($(HAVE_XML), 1)
-   OBJ += gfx/shader_glsl.o
+   OBJ += gfx/shader_glsl.o sha256.o cheats.o
    DEFINES += $(XML_CFLAGS) -DHAVE_XML
    LIBS += -lxml2
 endif
@@ -116,7 +116,7 @@ clean:
 	rm -f tools/*.o
 
 dist: all
-	zip -r ssnes-win32-0.4-beta.zip $(TARGET) ssnes.cfg snes.dll libxml2.dll iconv.dll zlib1.dll SDL.dll freetype6.dll xaudio-c.dll rsound.dll pthreadGC2.dll README.win32.txt $(JTARGET)
+	zip -r ssnes-win32-0.4.1.zip $(TARGET) ssnes.cfg snes.dll libxml2.dll iconv.dll zlib1.dll SDL.dll freetype6.dll xaudio-c.dll rsound.dll pthreadGC2.dll README.win32.txt $(JTARGET)
 
 libs:
 	wget https://github.com/downloads/Themaister/SSNES/SSNES-win32-libs.zip --no-check-certificate

cheats.c

@@ -0,0 +1,261 @@
+/*  SSNES - A Super Nintendo Entertainment System (SNES) Emulator frontend for libsnes.
+ *  Copyright (C) 2010-2011 - Hans-Kristian Arntzen
+ *
+ *  Some code herein may be based on code found in BSNES.
+ * 
+ *  SSNES is free software: you can redistribute it and/or modify it under the terms
+ *  of the GNU General Public License as published by the Free Software Found-
+ *  ation, either version 3 of the License, or (at your option) any later version.
+ *
+ *  SSNES is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
+ *  without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
+ *  PURPOSE.  See the GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License along with SSNES.
+ *  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "cheats.h"
+#include "sha256.h"
+#include "dynamic.h"
+#include "general.h"
+#include "strl.h"
+
+#include <stdlib.h>
+#include <stddef.h>
+#include <string.h>
+#include <assert.h>
+
+#include <libxml/parser.h>
+#include <libxml/tree.h>
+
+struct cheat
+{
+   char *desc;
+   bool state;
+   char *code;
+};
+
+struct cheat_manager
+{
+   struct cheat *cheats;
+   unsigned ptr;
+   unsigned size;
+   unsigned buf_size;
+};
+
+static char* strcat_alloc(char *dest, const char *input)
+{
+   size_t dest_len = dest ? strlen(dest) : 0;
+   size_t input_len = strlen(input);
+   size_t required_len = dest_len + input_len + 1;
+
+   char *output = realloc(dest, required_len);
+   assert(output);
+
+   if (dest)
+      strlcat(output, input, required_len);
+   else
+      strlcpy(output, input, required_len);
+
+   return output;
+}
+
+static void xml_grab_cheat(struct cheat *cht, xmlNodePtr ptr)
+{
+   memset(cht, 0, sizeof(struct cheat));
+   bool first = true;
+   for (xmlNodePtr node = ptr; node; node = node->next)
+   {
+      if (strcmp((const char*)node->name, "description") == 0)
+      {
+         cht->desc = (char*)xmlNodeGetContent(node);
+      }
+      else if (strcmp((const char*)node->name, "code") == 0)
+      {
+         if (!first)
+            cht->code = strcat_alloc(cht->code, "+");
+
+         xmlChar *code = xmlNodeGetContent(node);
+         assert(code);
+
+         cht->code = strcat_alloc(cht->code, (const char*)code);
+         xmlFree(code);
+
+         first = false;
+      }
+   }
+}
+
+static void xml_grab_cheats(cheat_manager_t *handle, xmlNodePtr ptr)
+{
+   xmlNodePtr node = NULL;
+   for (node = ptr; node; node = node->next)
+   {
+      if (strcmp((const char*)node->name, "name") == 0)
+      {
+         xmlChar *name = xmlNodeGetContent(node);
+         if (name)
+         {
+            SSNES_LOG("Found cheat for game: \"%s\"\n", name);
+            xmlFree(name);
+         }
+      }
+      else if (strcmp((const char*)node->name, "cheat") == 0)
+      {
+         if (handle->size == handle->buf_size)
+         {
+            handle->buf_size *= 2;
+            handle->cheats = realloc(handle->cheats, handle->buf_size * sizeof(struct cheat));
+            assert(handle->cheats);
+         }
+
+         xml_grab_cheat(&handle->cheats[handle->size++], node->children);
+      }
+   }
+}
+
+cheat_manager_t* cheat_manager_new(const char *path)
+{
+   psnes_cheat_reset();
+
+   xmlParserCtxtPtr ctx = NULL;
+   xmlDocPtr doc = NULL;
+   cheat_manager_t *handle = calloc(1, sizeof(handle));
+   if (!handle)
+      return NULL;
+
+   handle->buf_size = 32;
+   handle->cheats = malloc(handle->buf_size * sizeof(struct cheat));
+   if (!handle->cheats)
+   {
+      handle->buf_size = 0;
+      goto error;
+   }
+
+   ctx = xmlNewParserCtxt();
+   if (!ctx)
+      goto error;
+
+   doc = xmlCtxtReadFile(ctx, path, NULL, 0);
+   if (!doc)
+   {
+      SSNES_ERR("Failed to parse XML file: %s\n", path);
+      goto error;
+   }
+
+   if (ctx->valid == 0)
+   {
+      SSNES_ERR("Cannot validate XML file: %s\n", path);
+      goto error;
+   }
+
+   xmlNodePtr head = xmlDocGetRootElement(doc);
+   xmlNodePtr cur = NULL;
+   for (cur = head; cur; cur = cur->next)
+   {
+      if (cur->type == XML_ELEMENT_NODE && strcmp((const char*)cur->name, "database") == 0)
+         break;
+   }
+
+   if (!cur)
+      goto error;
+
+   for (cur = cur->children; cur; cur = cur->next)
+   {
+      if (cur->type != XML_ELEMENT_NODE)
+         continue;
+
+      if (strcmp((const char*)cur->name, "cartridge") == 0)
+      {
+         xmlChar *sha256 = xmlGetProp(cur, (const xmlChar*)"sha256");
+         if (!sha256)
+            continue;
+
+         if (memcmp(sha256, g_extern.sha256, 64) == 0)
+         {
+            xmlFree(sha256);
+            break;
+         }
+
+         xmlFree(sha256);
+      }
+   }
+
+   if (!cur)
+      goto error;
+
+   xml_grab_cheats(handle, cur->children);
+
+   xmlFreeDoc(doc);
+   xmlFreeParserCtxt(ctx);
+   return handle;
+
+error:
+   cheat_manager_free(handle);
+   if (doc)
+      xmlFreeDoc(doc);
+   if (ctx)
+      xmlFreeParserCtxt(ctx);
+   return NULL;
+}
+
+void cheat_manager_free(cheat_manager_t *handle)
+{
+   if (!handle)
+      return;
+
+   if (handle->cheats)
+   {
+      for (unsigned i = 0; i < handle->size; i++)
+      {
+         xmlFree(handle->cheats[i].desc);
+         free(handle->cheats[i].code);
+      }
+
+      free(handle->cheats);
+   }
+
+   free(handle);
+}
+
+static void cheat_manager_update(cheat_manager_t *handle)
+{
+   msg_queue_clear(g_extern.msg_queue);
+   char msg[256];
+   snprintf(msg, sizeof(msg), "Cheat: #%u [%s]: %s", handle->ptr, handle->cheats[handle->ptr].state ? "ON" : "OFF", handle->cheats[handle->ptr].desc);
+   msg_queue_push(g_extern.msg_queue, msg, 1, 180);
+   SSNES_LOG("%s\n", msg);
+}
+
+void cheat_manager_toggle(cheat_manager_t *handle)
+{
+   handle->cheats[handle->ptr].state ^= true;
+
+   unsigned index = 0;
+   psnes_cheat_reset();
+   for (unsigned i = 0; i < handle->size; i++)
+   {
+      if (handle->cheats[handle->ptr].state)
+         psnes_cheat_set(index++, true, handle->cheats[handle->ptr].code);
+   }
+
+   cheat_manager_update(handle);
+}
+
+void cheat_manager_index_next(cheat_manager_t *handle)
+{
+   handle->ptr = (handle->ptr + 1) % handle->size;
+   cheat_manager_update(handle);
+}
+
+void cheat_manager_index_prev(cheat_manager_t *handle)
+{
+   if (handle->ptr == 0)
+      handle->ptr = handle->size - 1;
+   else
+      handle->ptr--;
+
+   cheat_manager_update(handle);
+}
+

cheats.h

@@ -0,0 +1,30 @@
+/*  SSNES - A Super Nintendo Entertainment System (SNES) Emulator frontend for libsnes.
+ *  Copyright (C) 2010-2011 - Hans-Kristian Arntzen
+ *
+ *  Some code herein may be based on code found in BSNES.
+ * 
+ *  SSNES is free software: you can redistribute it and/or modify it under the terms
+ *  of the GNU General Public License as published by the Free Software Found-
+ *  ation, either version 3 of the License, or (at your option) any later version.
+ *
+ *  SSNES is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
+ *  without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
+ *  PURPOSE.  See the GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License along with SSNES.
+ *  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef __SSNES_CHEATS_H
+#define __SSNES_CHEATS_H
+
+typedef struct cheat_manager cheat_manager_t;
+
+cheat_manager_t* cheat_manager_new(const char *path);
+void cheat_manager_free(cheat_manager_t *handle);
+
+void cheat_manager_index_next(cheat_manager_t *handle);
+void cheat_manager_index_prev(cheat_manager_t *handle);
+void cheat_manager_toggle(cheat_manager_t *handle);
+
+#endif

config.def.h

@@ -44,6 +44,7 @@
 ///////////////// Drivers
 #define VIDEO_GL 0
 #define VIDEO_XVIDEO 11
+#define VIDEO_SDL 13
 ////////////////////////
 #define AUDIO_RSOUND 1
 #define AUDIO_OSS 2
@@ -107,6 +108,9 @@ static const bool fullscreen = false;  // To start in Fullscreen or not
 static const unsigned fullscreen_x = 0; // Fullscreen resolution. A value of 0 uses the desktop resolution.
 static const unsigned fullscreen_y = 0;
 
+// Force 16-bit colors.
+static const bool force_16bit = false;
+
 // Video VSYNC (recommended)
 static const bool vsync = true;
 
@@ -223,6 +227,9 @@ static const struct snes_keybind snes_keybinds_1[] = {
    { SSNES_RESET,                      SDLK_h,      NO_BTN,      AXIS_NONE },
    { SSNES_SHADER_NEXT,                SDLK_m,      NO_BTN,      AXIS_NONE },
    { SSNES_SHADER_PREV,                SDLK_n,      NO_BTN,      AXIS_NONE },
+   { SSNES_CHEAT_INDEX_PLUS,           SDLK_y,      NO_BTN,      AXIS_NONE },
+   { SSNES_CHEAT_INDEX_MINUS,          SDLK_t,      NO_BTN,      AXIS_NONE },
+   { SSNES_CHEAT_TOGGLE,               SDLK_u,      NO_BTN,      AXIS_NONE },
    { -1 }
 };
 

docs/ssnes.1

@@ -131,5 +131,9 @@ Network port used for netplay. This defaults to 55435. This option affects both
 Attempts to apply an UPS patch to the current ROM image. No files are altered. 
 If this flag is not specified, SSNES will look for a .ups file with same basename as ROM specified.
 
+.TP
+\fB-D, --detach\fR
+Detach from the current console. This is currently only relevant for Microsoft Windows.
+
 .SH "SEE ALSO"
 \fBssnes-joyconfig\fR(1)

driver.c

@@ -61,6 +61,7 @@ static const audio_driver_t *audio_drivers[] = {
 static const video_driver_t *video_drivers[] = {
 #ifdef HAVE_SDL
    &video_gl,
+   &video_sdl,
 #endif
 #ifdef HAVE_XVIDEO
    &video_xvideo,
@@ -336,7 +337,7 @@ void init_video_input(void)
       scale = g_extern.filter.scale;
 
    video_info_t video = {
-      .width = (g_settings.video.fullscreen) ? g_settings.video.fullscreen_x : (296 * g_settings.video.xscale),
+      .width = (g_settings.video.fullscreen) ? g_settings.video.fullscreen_x : (224 * g_settings.video.xscale * g_settings.video.aspect_ratio),
       .height = (g_settings.video.fullscreen) ? g_settings.video.fullscreen_y : (224 * g_settings.video.yscale),
       .fullscreen = g_settings.video.fullscreen,
       .vsync = g_settings.video.vsync,

driver.h

@@ -42,6 +42,9 @@ enum
    SSNES_RESET,
    SSNES_SHADER_NEXT,
    SSNES_SHADER_PREV,
+   SSNES_CHEAT_INDEX_PLUS,
+   SSNES_CHEAT_INDEX_MINUS,
+   SSNES_CHEAT_TOGGLE
 };
 
 
@@ -108,7 +111,7 @@ typedef struct input_driver
 
 typedef struct video_driver
 {
-   void* (*init)(video_info_t *video, const input_driver_t **input, void **input_data); 
+   void* (*init)(const video_info_t *video, const input_driver_t **input, void **input_data); 
    // Should the video driver act as an input driver as well? :) The video init might preinitialize an input driver to override the settings in case the video driver relies on input driver for event handling, e.g.
    bool (*frame)(void* data, const void* frame, unsigned width, unsigned height, unsigned pitch, const char *msg); // msg is for showing a message on the screen along with the video frame.
    void (*set_nonblock_state)(void* data, bool toggle); // Should we care about syncing to vblank? Fast forwarding.
@@ -153,6 +156,7 @@ extern const audio_driver_t audio_xa;
 extern const audio_driver_t audio_pulse;
 extern const video_driver_t video_gl;
 extern const video_driver_t video_xvideo;
+extern const video_driver_t video_sdl;
 extern const input_driver_t input_sdl;
 extern const input_driver_t input_x;
 ////////////////////////////////////////////////

dynamic.c

@@ -57,6 +57,9 @@ void (*psnes_set_input_state)(snes_input_state_t);
 void (*psnes_reset)(void);
 void (*psnes_run)(void);
 
+void (*psnes_cheat_reset)(void);
+void (*psnes_cheat_set)(unsigned, bool, const char*);
+
 const char *(*psnes_library_id)(void) = NULL;
 unsigned (*psnes_library_revision_minor)(void);
 unsigned (*psnes_library_revision_major)(void);
@@ -111,6 +114,8 @@ static void load_dynamic(void)
    OPT_SYM(snes_library_id);
    SYM(snes_library_revision_minor);
    SYM(snes_library_revision_major);
+   SYM(snes_cheat_reset);
+   SYM(snes_cheat_set);
    SYM(snes_reset);
    SYM(snes_run);
    SYM(snes_get_region);
@@ -145,6 +150,8 @@ static void set_statics(void)
    SSYM(snes_set_input_state);
    SSYM(snes_library_revision_minor);
    SSYM(snes_library_revision_major);
+   SSYM(snes_cheat_reset);
+   SSYM(snes_cheat_set);
    SSYM(snes_reset);
    SSYM(snes_run);
    SSYM(snes_get_region);

dynamic.h

@@ -37,6 +37,9 @@ extern void (*psnes_set_audio_sample)(snes_audio_sample_t);
 extern void (*psnes_set_input_poll)(snes_input_poll_t);
 extern void (*psnes_set_input_state)(snes_input_state_t);
 
+extern void (*psnes_cheat_reset)(void);
+extern void (*psnes_cheat_set)(unsigned, bool, const char*);
+
 extern const char* (*psnes_library_id)(void);
 extern unsigned (*psnes_library_revision_minor)(void);
 extern unsigned (*psnes_library_revision_major)(void);

file.c

@@ -26,6 +26,10 @@
 #include "ups.h"
 #include "strl.h"
 
+#ifdef HAVE_XML
+#include "sha256.h"
+#endif
+
 #ifdef _WIN32
 #include <io.h>
 #include <fcntl.h>
@@ -175,6 +179,10 @@ static ssize_t read_rom_file(FILE* file, void** buf)
    }
 
    g_extern.cart_crc = crc32_calculate(ret_buf, ret);
+#ifdef HAVE_XML
+   sha256_hash(g_extern.sha256, ret_buf, ret);
+   SSNES_LOG("SHA256 sum: %s\n", g_extern.sha256);
+#endif
    *buf = ret_buf;
    return ret;
 }

general.h

@@ -29,6 +29,7 @@
 #include "autosave.h"
 #include "netplay.h"
 #include "dynamic.h"
+#include "cheats.h"
 
 #ifdef HAVE_CONFIG_H
 #include "config.h"
@@ -42,7 +43,7 @@
 
 
 #define MAX_PLAYERS 5
-#define MAX_BINDS 28 // Needs to be increased every time there are new binds added.
+#define MAX_BINDS 31 // Needs to be increased every time there are new binds added.
 #define SSNES_NO_JOYPAD 0xFFFF
 
 enum ssnes_shader_type
@@ -85,6 +86,7 @@ struct settings
       float msg_pos_x;
       float msg_pos_y;
 
+      bool force_16bit;
    } video;
 
    struct
@@ -110,6 +112,7 @@ struct settings
    } input;
 
    char libsnes[256];
+   char cheat_database[256];
 
    bool rewind_enable;
    unsigned rewind_buffer_size;
@@ -243,6 +246,12 @@ struct global
       size_t size;
       size_t ptr;
    } shader_dir;
+
+   char sha256[65];
+
+#ifdef HAVE_XML
+   cheat_manager_t *cheat;
+#endif
 };
 
 void parse_config(void);

gfx/gfx_common.c

@@ -35,7 +35,7 @@ bool gfx_window_title(char *buf, size_t size)
    if (frames == 0)
    {
       gettimeofday(&tv, NULL);
-      snprintf(buf, size, g_extern.title_buf);
+      snprintf(buf, size, "%s", g_extern.title_buf);
       ret = true;
    }
 

gfx/gl.c

@@ -893,7 +893,7 @@ static void gl_set_nonblock_state(void *data, bool state)
    }
 }
 
-static void* gl_init(video_info_t *video, const input_driver_t **input, void **input_data)
+static void* gl_init(const video_info_t *video, const input_driver_t **input, void **input_data)
 {
    if (SDL_Init(SDL_INIT_VIDEO) < 0)
       return NULL;
@@ -907,7 +907,7 @@ static void* gl_init(video_info_t *video, const input_driver_t **input, void **i
    SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
    SDL_GL_SetAttribute(SDL_GL_SWAP_CONTROL, video->vsync ? 1 : 0);
 
-   if (!SDL_SetVideoMode(video->width, video->height, 0, SDL_OPENGL | SDL_RESIZABLE | (video->fullscreen ? SDL_FULLSCREEN : 0)))
+   if (!SDL_SetVideoMode(video->width, video->height, g_settings.video.force_16bit ? 16 : 0, SDL_OPENGL | SDL_RESIZABLE | (video->fullscreen ? SDL_FULLSCREEN : 0)))
       return NULL;
 
    // Remove that ugly mouse :D

gfx/sdl.c

@@ -0,0 +1,497 @@
+/*  SSNES - A Super Nintendo Entertainment System (SNES) Emulator frontend for libsnes.
+ *  Copyright (C) 2010-2011 - Hans-Kristian Arntzen
+ *
+ *  Some code herein may be based on code found in BSNES.
+ * 
+ *  SSNES is free software: you can redistribute it and/or modify it under the terms
+ *  of the GNU General Public License as published by the Free Software Found-
+ *  ation, either version 3 of the License, or (at your option) any later version.
+ *
+ *  SSNES is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
+ *  without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
+ *  PURPOSE.  See the GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License along with SSNES.
+ *  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "SDL.h"
+#include "driver.h"
+#include <assert.h>
+#include <stdlib.h>
+#include <string.h>
+#include "general.h"
+#include "input/ssnes_sdl_input.h"
+#include "gfx_common.h"
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#ifdef HAVE_FREETYPE
+#include "fonts.h"
+#endif
+
+static void convert_15bit_15bit_direct(uint16_t *out, unsigned outpitch, const uint16_t *input, unsigned width, unsigned height, unsigned pitch, const SDL_PixelFormat *fmt);
+static void convert_32bit_32bit_direct(uint32_t *out, unsigned outpitch, const uint32_t *input, unsigned width, unsigned height, unsigned pitch, const SDL_PixelFormat *fmt);
+static void convert_15bit_15bit_shift(uint16_t *out, unsigned outpitch, const uint16_t *input, unsigned width, unsigned height, unsigned pitch, const SDL_PixelFormat *fmt);
+static void convert_32bit_32bit_shift(uint32_t *out, unsigned outpitch, const uint32_t *input, unsigned width, unsigned height, unsigned pitch, const SDL_PixelFormat *fmt);
+
+typedef struct sdl_video sdl_video_t;
+struct sdl_video
+{
+   SDL_Surface *screen, *buffer;
+   bool quitting;
+   bool rgb32;
+   bool upsample;
+
+   void (*convert_15_func)(uint16_t*, unsigned, const uint16_t*, unsigned, unsigned, unsigned, const SDL_PixelFormat*);
+   void (*convert_32_func)(uint32_t*, unsigned, const uint32_t*, unsigned, unsigned, unsigned, const SDL_PixelFormat*);
+
+#ifdef HAVE_FREETYPE
+   font_renderer_t *font;
+#endif
+};
+
+static void sdl_gfx_free(void *data)
+{
+   sdl_video_t *vid = data;
+   if (!vid)
+      return;
+
+   if (vid->buffer)
+      SDL_FreeSurface(vid->buffer);
+
+   SDL_QuitSubSystem(SDL_INIT_VIDEO);
+
+#ifdef HAVE_FREETYPE
+   if (vid->font)
+      font_renderer_free(vid->font);
+#endif
+
+   free(vid);
+}
+
+static void sdl_init_font(sdl_video_t *vid, const char *font_path, unsigned font_size)
+{
+#ifdef HAVE_FREETYPE
+   if (*font_path)
+   {
+      vid->font = font_renderer_new(font_path, font_size);
+      if (!vid->font)
+         SSNES_WARN("Failed to init font.\n");
+   }
+#else
+   (void)vid;
+   (void)font_path;
+   (void)font_size;
+#endif
+}
+
+// Not very optimized, but hey :D
+static void sdl_render_msg_15(sdl_video_t *vid, SDL_Surface *buffer, const char *msg, unsigned width, unsigned height, const SDL_PixelFormat *fmt)
+{
+#ifdef HAVE_FREETYPE
+   struct font_output_list out;
+   font_renderer_msg(vid->font, msg, &out);
+   struct font_output *head = out.head;
+
+   int base_x = g_settings.video.msg_pos_x * width;
+   int base_y = (1.0 - g_settings.video.msg_pos_y) * height;
+
+   unsigned rshift = fmt->Rshift;
+   unsigned gshift = fmt->Gshift;
+   unsigned bshift = fmt->Bshift;
+
+   while (head)
+   {
+      int rbase_x = base_x + head->off_x;
+      int rbase_y = base_y - head->off_y;
+      if (rbase_y >= 0)
+      {
+         for (int y = 0; y < head->height && (y + rbase_y) < height; y++)
+         {
+            if (rbase_x < 0)
+               continue;
+
+            const uint8_t *a = head->output + head->pitch * y;
+            uint16_t *out = (uint16_t*)buffer->pixels + (rbase_y - head->height + y) * (buffer->pitch >> 1) + rbase_x;
+
+            for (int x = 0; x < head->width && (x + rbase_x) < width; x++)
+            {
+               unsigned blend = a[x];
+               unsigned out_pix = out[x];
+               unsigned r = (out_pix >> rshift) & 0x1f;
+               unsigned g = (out_pix >> gshift) & 0x1f;
+               unsigned b = (out_pix >> bshift) & 0x1f;
+
+               unsigned out_r = (r * (256 - blend) + 0x1f * blend) >> 8;
+               unsigned out_g = (g * (256 - blend) + 0x1f * blend) >> 8;
+               unsigned out_b = (b * (256 - blend) + 0x1f * blend) >> 8;
+               out[x] = (out_r << rshift) | (out_g << gshift) | (out_b << bshift);
+            }
+         }
+      }
+
+      head = head->next;
+   }
+
+   font_renderer_free_output(&out);
+
+#else
+   (void)vid;
+   (void)buffer;
+   (void)msg;
+   (void)width;
+   (void)height;
+#endif
+}
+
+static void sdl_render_msg_32(sdl_video_t *vid, SDL_Surface *buffer, const char *msg, unsigned width, unsigned height, const SDL_PixelFormat *fmt)
+{
+#ifdef HAVE_FREETYPE
+   struct font_output_list out;
+   font_renderer_msg(vid->font, msg, &out);
+   struct font_output *head = out.head;
+
+   int base_x = g_settings.video.msg_pos_x * width;
+   int base_y = (1.0 - g_settings.video.msg_pos_y) * height;
+
+   unsigned rshift = fmt->Rshift;
+   unsigned gshift = fmt->Gshift;
+   unsigned bshift = fmt->Bshift;
+
+   while (head)
+   {
+      int rbase_x = base_x + head->off_x;
+      int rbase_y = base_y - head->off_y;
+      if (rbase_y >= 0)
+      {
+         for (int y = 0; y < head->height && (y + rbase_y) < height; y++)
+         {
+            if (rbase_x < 0)
+               continue;
+
+            const uint8_t *a = head->output + head->pitch * y;
+            uint32_t *out = (uint32_t*)buffer->pixels + (rbase_y - head->height + y) * (buffer->pitch >> 2) + rbase_x;
+
+            for (int x = 0; x < head->width && (x + rbase_x) < width; x++)
+            {
+               unsigned blend = a[x];
+               unsigned out_pix = out[x];
+               unsigned r = (out_pix >> rshift) & 0xff;
+               unsigned g = (out_pix >> gshift) & 0xff;
+               unsigned b = (out_pix >> bshift) & 0xff;
+
+               unsigned out_r = (r * (256 - blend) + 0xff * blend) >> 8;
+               unsigned out_g = (g * (256 - blend) + 0xff * blend) >> 8;
+               unsigned out_b = (b * (256 - blend) + 0xff * blend) >> 8;
+               out[x] = (out_r << rshift) | (out_g << gshift) | (out_b << bshift);
+            }
+         }
+      }
+
+      head = head->next;
+   }
+
+   font_renderer_free_output(&out);
+
+#else
+   (void)vid;
+   (void)buffer;
+   (void)msg;
+   (void)width;
+   (void)height;
+#endif
+}
+
+static void* sdl_gfx_init(const video_info_t *video, const input_driver_t **input, void **input_data)
+{
+   SDL_InitSubSystem(SDL_INIT_VIDEO);
+
+   sdl_video_t *vid = calloc(1, sizeof(*vid));
+   if (!vid)
+      return NULL;
+
+   const SDL_VideoInfo *video_info = SDL_GetVideoInfo();
+   assert(video_info);
+   unsigned full_x = video_info->current_w;
+   unsigned full_y = video_info->current_h;
+   SSNES_LOG("Detecting desktop resolution %ux%u.\n", full_x, full_y);
+
+   if (!video->fullscreen)
+      SSNES_LOG("Creating window @ %ux%u\n", video->width, video->height);
+
+   vid->screen = SDL_SetVideoMode(video->width, video->height, (g_settings.video.force_16bit || !video->rgb32) ? 15 : 32, SDL_HWSURFACE | SDL_HWACCEL | SDL_DOUBLEBUF | (video->fullscreen ? SDL_FULLSCREEN : 0));
+
+   if (!vid->screen && !g_settings.video.force_16bit && !video->rgb32)
+   {
+      vid->upsample = true;
+      vid->screen = SDL_SetVideoMode(video->width, video->height, 32, SDL_HWSURFACE | SDL_HWACCEL | SDL_DOUBLEBUF | (video->fullscreen ? SDL_FULLSCREEN : 0));
+      SSNES_WARN("SDL: 15-bit colors failed, attempting 32-bit colors.\n");
+   }
+
+   if (!vid->screen)
+   {
+      SSNES_ERR("Failed to init SDL surface: %s\n", SDL_GetError());
+      goto error;
+   }
+
+   SDL_ShowCursor(SDL_DISABLE);
+
+   const SDL_PixelFormat *fmt = vid->screen->format;
+   if (!g_settings.video.force_16bit && (video->rgb32 || vid->upsample))
+   {
+      SSNES_LOG("SDL: Creating 32-bit buffer.\n");
+      vid->buffer = SDL_CreateRGBSurface(SDL_SWSURFACE, 256 * video->input_scale, 256 * video->input_scale, 32,
+            fmt->Rmask, fmt->Bmask, fmt->Gmask, fmt->Amask);
+   }
+   else
+   {
+      SSNES_LOG("SDL: Creating 15-bit buffer.\n");
+      vid->buffer = SDL_CreateRGBSurface(SDL_SWSURFACE, 256 * video->input_scale, 256 * video->input_scale, 15,
+            fmt->Rmask, fmt->Gmask, fmt->Bmask, fmt->Amask);
+   }
+   SSNES_LOG("[Debug]: SDL Pixel format: Rshift = %u, Gshift = %u, Bshift = %u\n", 
+         (unsigned)fmt->Rshift, (unsigned)fmt->Gshift, (unsigned)fmt->Bshift);
+
+   if (!vid->buffer)
+   {
+      SSNES_ERR("SDL_CreateRGBSurface failed: %s\n", SDL_GetError());
+      goto error;
+   }
+
+   sdl_input_t *sdl_input = input_sdl.init();
+   if (sdl_input)
+   {
+      sdl_input->quitting = &vid->quitting;
+      *input = &input_sdl;
+      *input_data = sdl_input;
+   }
+   else
+      *input = NULL;
+
+   vid->rgb32 = video->rgb32;
+
+   sdl_init_font(vid, g_settings.video.font_path, g_settings.video.font_size);
+
+
+   if (fmt->Rshift == 10 && fmt->Gshift ==  5 && fmt->Bshift == 0) 
+   {
+      SSNES_LOG("SDL: 15-bit format matches. Fast blit.\n");
+      vid->convert_15_func = convert_15bit_15bit_direct;
+   }
+   else
+   {
+      SSNES_LOG("SDL: 15-bit format does not match. Needs conversion.\n");
+      vid->convert_15_func = convert_15bit_15bit_shift;
+   }
+
+   if (fmt->Rshift == 24 && fmt->Gshift == 16 && fmt->Bshift == 8) 
+   {
+      SSNES_LOG("SDL: 32-bit format matches. Fast blit.\n");
+      vid->convert_32_func = convert_32bit_32bit_direct;
+   }
+   else
+   {
+      SSNES_LOG("SDL: 32-bit format does not match. Needs conversion.\n");
+      vid->convert_32_func = convert_32bit_32bit_shift;
+   }
+
+   return vid;
+
+error:
+   sdl_gfx_free(vid);
+   return NULL;
+}
+
+static inline uint16_t conv_pixel_32_15(uint32_t pix, const SDL_PixelFormat *fmt)
+{
+   uint16_t r = ((pix & 0xf8000000) >> 27) << fmt->Rshift;
+   uint16_t g = ((pix & 0x00f80000) >> 19) << fmt->Gshift;
+   uint16_t b = ((pix & 0x0000f800) >> 11) << fmt->Bshift;
+   return r | g | b;
+}
+
+static inline uint32_t conv_pixel_15_32(uint16_t pix, const SDL_PixelFormat *fmt)
+{
+   uint32_t r = ((pix >> 10) & 0x1f) << (fmt->Rshift + 3);
+   uint32_t g = ((pix >>  5) & 0x1f) << (fmt->Gshift + 3);
+   uint32_t b = ((pix >>  0) & 0x1f) << (fmt->Bshift + 3);
+   return r | g | b;
+}
+
+static void convert_32bit_15bit(uint16_t *out, unsigned outpitch, const uint32_t *input, unsigned width, unsigned height, unsigned pitch, const SDL_PixelFormat *fmt)
+{
+   for (unsigned y = 0; y < height; y++)
+   {
+      for (unsigned x = 0; x < width; x++)
+         out[x] = conv_pixel_32_15(input[x], fmt);
+
+      out += outpitch >> 1;
+      input += pitch >> 2;
+   }
+}
+
+static void convert_15bit_32bit(uint32_t *out, unsigned outpitch, const uint16_t *input, unsigned width, unsigned height, unsigned pitch, const SDL_PixelFormat *fmt)
+{
+   for (unsigned y = 0; y < height; y++)
+   {
+      for (unsigned x = 0; x < width; x++)
+         out[x] = conv_pixel_15_32(input[x], fmt);
+
+      out += outpitch >> 2;
+      input += pitch >> 1;
+   }
+}
+
+static void convert_15bit_15bit_direct(uint16_t *out, unsigned outpitch, const uint16_t *input, unsigned width, unsigned height, unsigned pitch, const SDL_PixelFormat *fmt)
+{
+   for (unsigned y = 0; y < height; y++)
+   {
+      uint16_t *dest = out + ((y * outpitch) >> 1);
+      const uint16_t *src = input + ((y * pitch) >> 1);
+      memcpy(dest, src, width * sizeof(uint16_t));
+   }
+   (void)fmt;
+}
+
+static void convert_32bit_32bit_direct(uint32_t *out, unsigned outpitch, const uint32_t *input, unsigned width, unsigned height, unsigned pitch, const SDL_PixelFormat *fmt)
+{
+   for (unsigned y = 0; y < height; y++)
+   {
+      uint32_t *dest = out + ((y * outpitch) >> 2);
+      const uint32_t *src = input + ((y * pitch) >> 2);
+      memcpy(dest, src, width * sizeof(uint32_t));
+   }
+   (void)fmt;
+}
+
+static void convert_15bit_15bit_shift(uint16_t *out, unsigned outpitch, const uint16_t *input, unsigned width, unsigned height, unsigned pitch, const SDL_PixelFormat *fmt)
+{
+   for (unsigned y = 0; y < height; y++)
+   {
+      uint16_t *dest = out + ((y * outpitch) >> 1);
+      const uint16_t *src = input + ((y * pitch) >> 1);
+      for (unsigned x = 0; x < width; x++)
+      {
+         uint16_t color = src[x];
+         uint16_t r = ((color >> 10) & 0x1f) << fmt->Rshift;
+         uint16_t g = ((color >>  5) & 0x1f) << fmt->Gshift;
+         uint16_t b = ((color >>  0) & 0x1f) << fmt->Bshift;
+         dest[x] = r | g | b;
+      }
+   }
+}
+
+static void convert_32bit_32bit_shift(uint32_t *out, unsigned outpitch, const uint32_t *input, unsigned width, unsigned height, unsigned pitch, const SDL_PixelFormat *fmt)
+{
+   for (unsigned y = 0; y < height; y++)
+   {
+      uint32_t *dest = out + ((y * outpitch) >> 2);
+      const uint32_t *src = input + ((y * pitch) >> 2);
+      for (unsigned x = 0; x < width; x++)
+      {
+         uint32_t color = src[x];
+         uint32_t r = ((color >> 24) & 0xff) << fmt->Rshift;
+         uint32_t g = ((color >> 16) & 0xff) << fmt->Gshift;
+         uint32_t b = ((color >>  8) & 0xff) << fmt->Bshift;
+         dest[x] = r | g | b;
+      }
+   }
+}
+
+static bool sdl_gfx_frame(void *data, const void* frame, unsigned width, unsigned height, unsigned pitch, const char *msg)
+{
+   sdl_video_t *vid = data;
+
+   if (SDL_MUSTLOCK(vid->buffer))
+      SDL_LockSurface(vid->buffer);
+
+   // :(
+   // 15-bit -> 32-bit (Sometimes 15-bit won't work on "modern" OSes :\)
+   if (vid->upsample)
+   {
+      convert_15bit_32bit(vid->buffer->pixels, vid->buffer->pitch, frame, width, height, pitch, vid->screen->format);
+   }
+   // 15-bit -> 15-bit
+   else if (!vid->rgb32)
+   {
+      vid->convert_15_func(vid->buffer->pixels, vid->buffer->pitch, frame, width, height, pitch, vid->screen->format);
+   }
+   // 32-bit -> 15-bit
+   else if (vid->rgb32 && g_settings.video.force_16bit)
+   {
+      convert_32bit_15bit(vid->buffer->pixels, vid->buffer->pitch, frame, width, height, pitch, vid->screen->format);
+   }
+   // 32-bit -> 32-bit
+   else
+   {
+      vid->convert_32_func(vid->buffer->pixels, vid->buffer->pitch, frame, width, height, pitch, vid->screen->format);
+   }
+
+   if (msg)
+   {
+      if ((!vid->rgb32 || g_settings.video.force_16bit) && !vid->upsample)
+         sdl_render_msg_15(vid, vid->buffer, msg, width, height, vid->screen->format);
+      else
+         sdl_render_msg_32(vid, vid->buffer, msg, width, height, vid->screen->format);
+   }
+
+   if (SDL_MUSTLOCK(vid->buffer))
+      SDL_UnlockSurface(vid->buffer);
+
+   SDL_Rect src = {
+      .x = 0,
+      .y = 0,
+      .w = width,
+      .h = height
+   };
+
+   SDL_Rect dest = {
+      .x = 0,
+      .y = 0,
+      .w = vid->screen->w,
+      .h = vid->screen->h
+   };
+
+   SDL_SoftStretch(vid->buffer, &src, vid->screen, &dest);
+
+   char buf[128];
+   if (gfx_window_title(buf, sizeof(buf)))
+      SDL_WM_SetCaption(buf, NULL);
+
+   SDL_Flip(vid->screen);
+
+   return true;
+}
+
+static void sdl_gfx_set_nonblock_state(void *data, bool state)
+{
+   (void)data; // Can SDL even do this?
+   (void)state;
+}
+
+static bool sdl_gfx_alive(void *data)
+{
+   sdl_video_t *vid = data;
+   return !vid->quitting;
+}
+
+static bool sdl_gfx_focus(void *data)
+{
+   (void)data;
+   return (SDL_GetAppState() & (SDL_APPINPUTFOCUS | SDL_APPACTIVE)) == (SDL_APPINPUTFOCUS | SDL_APPACTIVE);
+}
+
+
+const video_driver_t video_sdl = {
+   .init = sdl_gfx_init,
+   .frame = sdl_gfx_frame,
+   .alive = sdl_gfx_alive,
+   .set_nonblock_state = sdl_gfx_set_nonblock_state,
+   .focus = sdl_gfx_focus,
+   .free = sdl_gfx_free,
+   .ident = "sdl"
+};
+

gfx/xvideo.c

@@ -77,7 +77,7 @@ static void xv_set_nonblock_state(void *data, bool state)
 {
    xv_t *xv = data;
    Atom atom = XInternAtom(xv->display, "XV_SYNC_TO_VBLANK", true);
-   if (atom != None && xv->port >= 0)
+   if (atom != None && xv->port)
       XvSetPortAttribute(xv->display, xv->port, atom, !state);
    else
       SSNES_WARN("Failed to set SYNC_TO_VBLANK attribute.\n");
@@ -177,7 +177,7 @@ static void xv_init_font(xv_t *xv, const char *font_path, unsigned font_size)
    {
       xv->font = font_renderer_new(font_path, font_size);
       if (!xv->font)
-         SSNES_WARN("Failed to init font\n");
+         SSNES_WARN("Failed to init font.\n");
    }
 #endif
 }
@@ -298,7 +298,7 @@ static void render32_uyvy(xv_t *xv, const void *input_, unsigned width, unsigned
 }
 
 
-static void* xv_init(video_info_t *video, const input_driver_t **input, void **input_data)
+static void* xv_init(const video_info_t *video, const input_driver_t **input, void **input_data)
 {
    xv_t *xv = calloc(1, sizeof(*xv));
    if (!xv)
@@ -315,7 +315,7 @@ static void* xv_init(video_info_t *video, const input_driver_t **input, void **i
    xv->keep_aspect = video->force_aspect;
 
    // Find an appropriate Xv port.
-   xv->port = -1;
+   xv->port = 0;
    XvAdaptorInfo *adaptor_info;
    unsigned adaptor_count = 0;
    XvQueryAdaptors(xv->display, DefaultRootWindow(xv->display), &adaptor_count, &adaptor_info);
@@ -333,7 +333,7 @@ static void* xv_init(video_info_t *video, const input_driver_t **input, void **i
    }
    XvFreeAdaptorInfo(adaptor_info);
 
-   if (xv->port < 0) 
+   if (xv->port == 0) 
    {
       SSNES_ERR("XVideo: Failed to find valid XvPort.\n");
       goto error;

qb/config.params.sh

@@ -1,7 +1,7 @@
 . qb/qb.params.sh
 
 PACKAGE_NAME=ssnes
-PACKAGE_VERSION=0.4
+PACKAGE_VERSION=0.4.1
 
 # Adds a command line opt to ./configure --help
 # $1: Variable (HAVE_ALSA, HAVE_OSS, etc)   

settings.c

@@ -47,6 +47,9 @@ static void set_defaults(void)
       case VIDEO_XVIDEO:
          def_video = "xvideo";
          break;
+      case VIDEO_SDL:
+         def_video = "sdl";
+         break;
       default:
          break;
    }
@@ -105,6 +108,7 @@ static void set_defaults(void)
    g_settings.video.fullscreen = fullscreen;
    g_settings.video.fullscreen_x = fullscreen_x;
    g_settings.video.fullscreen_y = fullscreen_y;
+   g_settings.video.force_16bit = force_16bit;
    g_settings.video.vsync = vsync;
    g_settings.video.smooth = video_smooth;
    g_settings.video.force_aspect = force_aspect;
@@ -282,6 +286,7 @@ static void parse_config_file(void)
    CONFIG_GET_INT(video.fullscreen_x, "video_fullscreen_x");
    CONFIG_GET_INT(video.fullscreen_y, "video_fullscreen_y");
    CONFIG_GET_BOOL(video.fullscreen, "video_fullscreen");
+   CONFIG_GET_BOOL(video.force_16bit, "video_force_16bit");
    CONFIG_GET_BOOL(video.vsync, "video_vsync");
    CONFIG_GET_BOOL(video.smooth, "video_smooth");
    CONFIG_GET_BOOL(video.force_aspect, "video_force_aspect");
@@ -369,6 +374,8 @@ static void parse_config_file(void)
    CONFIG_GET_BOOL(pause_nonactive, "pause_nonactive");
    CONFIG_GET_INT(autosave_interval, "autosave_interval");
 
+   CONFIG_GET_STRING(cheat_database, "cheat_database_path");
+
    read_keybinds(conf);
 
    config_file_free(conf);
@@ -414,6 +421,9 @@ static const struct bind_map bind_maps[MAX_PLAYERS][MAX_BINDS - 1] = {
       DECLARE_BIND(reset,                 SSNES_RESET)
       DECLARE_BIND(shader_next,           SSNES_SHADER_NEXT)
       DECLARE_BIND(shader_prev,           SSNES_SHADER_PREV)
+      DECLARE_BIND(cheat_index_plus,      SSNES_CHEAT_INDEX_PLUS)
+      DECLARE_BIND(cheat_index_minus,     SSNES_CHEAT_INDEX_MINUS)
+      DECLARE_BIND(cheat_toggle,          SSNES_CHEAT_TOGGLE)
    },
    {
       DECLARE_BIND(player2_a,             SNES_DEVICE_ID_JOYPAD_A)
@@ -443,6 +453,9 @@ static const struct bind_map bind_maps[MAX_PLAYERS][MAX_BINDS - 1] = {
       DECLARE_BIND(reset,                 SSNES_RESET)
       DECLARE_BIND(shader_next,           SSNES_SHADER_NEXT)
       DECLARE_BIND(shader_prev,           SSNES_SHADER_PREV)
+      DECLARE_BIND(cheat_index_plus,      SSNES_CHEAT_INDEX_PLUS)
+      DECLARE_BIND(cheat_index_minus,     SSNES_CHEAT_INDEX_MINUS)
+      DECLARE_BIND(cheat_toggle,          SSNES_CHEAT_TOGGLE)
    },
    {
       DECLARE_BIND(player3_a,             SNES_DEVICE_ID_JOYPAD_A)
@@ -472,6 +485,9 @@ static const struct bind_map bind_maps[MAX_PLAYERS][MAX_BINDS - 1] = {
       DECLARE_BIND(reset,                 SSNES_RESET)
       DECLARE_BIND(shader_next,           SSNES_SHADER_NEXT)
       DECLARE_BIND(shader_prev,           SSNES_SHADER_PREV)
+      DECLARE_BIND(cheat_index_plus,      SSNES_CHEAT_INDEX_PLUS)
+      DECLARE_BIND(cheat_index_minus,     SSNES_CHEAT_INDEX_MINUS)
+      DECLARE_BIND(cheat_toggle,          SSNES_CHEAT_TOGGLE)
    },
    {
       DECLARE_BIND(player4_a,             SNES_DEVICE_ID_JOYPAD_A)
@@ -501,6 +517,9 @@ static const struct bind_map bind_maps[MAX_PLAYERS][MAX_BINDS - 1] = {
       DECLARE_BIND(reset,                 SSNES_RESET)
       DECLARE_BIND(shader_next,           SSNES_SHADER_NEXT)
       DECLARE_BIND(shader_prev,           SSNES_SHADER_PREV)
+      DECLARE_BIND(cheat_index_plus,      SSNES_CHEAT_INDEX_PLUS)
+      DECLARE_BIND(cheat_index_minus,     SSNES_CHEAT_INDEX_MINUS)
+      DECLARE_BIND(cheat_toggle,          SSNES_CHEAT_TOGGLE)
    },
    {
       DECLARE_BIND(player5_a,             SNES_DEVICE_ID_JOYPAD_A)
@@ -530,6 +549,9 @@ static const struct bind_map bind_maps[MAX_PLAYERS][MAX_BINDS - 1] = {
       DECLARE_BIND(reset,                 SSNES_RESET)
       DECLARE_BIND(shader_next,           SSNES_SHADER_NEXT)
       DECLARE_BIND(shader_prev,           SSNES_SHADER_PREV)
+      DECLARE_BIND(cheat_index_plus,      SSNES_CHEAT_INDEX_PLUS)
+      DECLARE_BIND(cheat_index_minus,     SSNES_CHEAT_INDEX_MINUS)
+      DECLARE_BIND(cheat_toggle,          SSNES_CHEAT_TOGGLE)
    },
 };
 

sha256.c

@@ -0,0 +1,180 @@
+/*  SSNES - A Super Nintendo Entertainment System (SNES) Emulator frontend for libsnes.
+ *  Copyright (C) 2010-2011 - Hans-Kristian Arntzen
+ *
+ *  Some code herein may be based on code found in BSNES.
+ * 
+ *  SSNES is free software: you can redistribute it and/or modify it under the terms
+ *  of the GNU General Public License as published by the Free Software Found-
+ *  ation, either version 3 of the License, or (at your option) any later version.
+ *
+ *  SSNES is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
+ *  without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
+ *  PURPOSE.  See the GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License along with SSNES.
+ *  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+// SHA256 implementation from bSNES. Written by valditx.
+//
+
+#include "sha256.h"
+#include <string.h>
+#include <stdio.h>
+
+#define PTR(t, a) ((t*)(a))
+
+#define SWAP32(x) ((uint32_t)(           \
+         (((uint32_t)(x) & 0x000000ff) << 24) | \
+         (((uint32_t)(x) & 0x0000ff00) <<  8) | \
+         (((uint32_t)(x) & 0x00ff0000) >>  8) | \
+         (((uint32_t)(x) & 0xff000000) >> 24)   \
+         ))
+
+#define ST32(a, d) *PTR(uint32_t, a) = (d)
+#define ST32BE(a, d) ST32(a, SWAP32(d))
+
+#define LD32(a) *PTR(uint32_t, a)
+#define LD32BE(a) SWAP32(LD32(a))
+
+#define LSL32(x, n) ((uint32_t)(x) << (n))
+#define LSR32(x, n) ((uint32_t)(x) >> (n))
+#define ROR32(x, n) (LSR32(x, n) | LSL32(x, 32 - (n)))
+
+// First 32 bits of the fractional parts of the square roots of the first 8 primes 2..19
+static const uint32_t T_H[8] = {
+   0x6a09e667, 0xbb67ae85, 0x3c6ef372, 0xa54ff53a, 0x510e527f, 0x9b05688c, 0x1f83d9ab, 0x5be0cd19,
+};
+
+// First 32 bits of the fractional parts of the cube roots of the first 64 primes 2..311
+static const uint32_t T_K[64] = {
+   0x428a2f98, 0x71374491, 0xb5c0fbcf, 0xe9b5dba5, 0x3956c25b, 0x59f111f1, 0x923f82a4, 0xab1c5ed5,
+   0xd807aa98, 0x12835b01, 0x243185be, 0x550c7dc3, 0x72be5d74, 0x80deb1fe, 0x9bdc06a7, 0xc19bf174,
+   0xe49b69c1, 0xefbe4786, 0x0fc19dc6, 0x240ca1cc, 0x2de92c6f, 0x4a7484aa, 0x5cb0a9dc, 0x76f988da,
+   0x983e5152, 0xa831c66d, 0xb00327c8, 0xbf597fc7, 0xc6e00bf3, 0xd5a79147, 0x06ca6351, 0x14292967,
+   0x27b70a85, 0x2e1b2138, 0x4d2c6dfc, 0x53380d13, 0x650a7354, 0x766a0abb, 0x81c2c92e, 0x92722c85,
+   0xa2bfe8a1, 0xa81a664b, 0xc24b8b70, 0xc76c51a3, 0xd192e819, 0xd6990624, 0xf40e3585, 0x106aa070,
+   0x19a4c116, 0x1e376c08, 0x2748774c, 0x34b0bcb5, 0x391c0cb3, 0x4ed8aa4a, 0x5b9cca4f, 0x682e6ff3,
+   0x748f82ee, 0x78a5636f, 0x84c87814, 0x8cc70208, 0x90befffa, 0xa4506ceb, 0xbef9a3f7, 0xc67178f2,
+};
+
+struct sha256_ctx 
+{
+   uint8_t in[64];
+   unsigned inlen;
+
+   uint32_t w[64];
+   uint32_t h[8];
+   uint64_t len;
+};
+
+static void sha256_init(struct sha256_ctx *p) 
+{
+   memset(p, 0, sizeof(struct sha256_ctx));
+   memcpy(p->h, T_H, sizeof(T_H));
+}
+
+static void sha256_block(struct sha256_ctx *p) 
+{
+   unsigned i;
+   uint32_t s0, s1;
+   uint32_t a, b, c, d, e, f, g, h;
+   uint32_t t1, t2, maj, ch;
+
+   for (i = 0; i < 16; i++) 
+      p->w[i] = LD32BE(p->in + i * 4);
+
+   for (i = 16; i < 64; i++) 
+   {
+      s0 = ROR32(p->w[i - 15],  7) ^ ROR32(p->w[i - 15], 18) ^ LSR32(p->w[i - 15],  3);
+      s1 = ROR32(p->w[i -  2], 17) ^ ROR32(p->w[i -  2], 19) ^ LSR32(p->w[i -  2], 10);
+      p->w[i] = p->w[i - 16] + s0 + p->w[i - 7] + s1;
+   }
+
+   a = p->h[0]; b = p->h[1]; c = p->h[2]; d = p->h[3];
+   e = p->h[4]; f = p->h[5]; g = p->h[6]; h = p->h[7];
+
+   for (i = 0; i < 64; i++) 
+   {
+      s0 = ROR32(a, 2) ^ ROR32(a, 13) ^ ROR32(a, 22);
+      maj = (a & b) ^ (a & c) ^ (b & c);
+      t2 = s0 + maj;
+      s1 = ROR32(e, 6) ^ ROR32(e, 11) ^ ROR32(e, 25);
+      ch = (e & f) ^ (~e & g);
+      t1 = h + s1 + ch + T_K[i] + p->w[i];
+
+      h = g; g = f; f = e; e = d + t1;
+      d = c; c = b; b = a; a = t1 + t2;
+   }
+
+   p->h[0] += a; p->h[1] += b; p->h[2] += c; p->h[3] += d;
+   p->h[4] += e; p->h[5] += f; p->h[6] += g; p->h[7] += h;
+
+   // Next block
+   p->inlen = 0;
+}
+
+static void sha256_chunk(struct sha256_ctx *p, const uint8_t *s, unsigned len) 
+{
+   unsigned l;
+   p->len += len;
+
+   while (len) 
+   {
+      l = 64 - p->inlen;
+      l = (len < l) ? len : l;
+
+      memcpy(p->in + p->inlen, s, l);
+      s += l;
+      p->inlen += l;
+      len -= l;
+
+      if (p->inlen == 64) 
+         sha256_block(p);
+   }
+}
+
+static void sha256_final(struct sha256_ctx *p) 
+{
+   uint64_t len;
+   p->in[p->inlen++] = 0x80;
+
+   if (p->inlen > 56) 
+   {
+      memset(p->in + p->inlen, 0, 64 - p->inlen);
+      sha256_block(p);
+   }
+
+   memset(p->in + p->inlen, 0, 56 - p->inlen);
+
+   len = p->len << 3;
+   ST32BE(p->in + 56, len >> 32);
+   ST32BE(p->in + 60, len);
+   sha256_block(p);
+}
+
+static void sha256_subhash(struct sha256_ctx *p, uint32_t *t) 
+{
+   for (unsigned i = 0; i < 8; i++) 
+      ST32BE(t++, p->h[i]);
+}
+
+void sha256_hash(char *out, const uint8_t *in, size_t size)
+{
+   struct sha256_ctx sha;
+
+   union
+   {
+      uint32_t u32[8];
+      uint8_t u8[32];
+   } shahash;
+
+   sha256_init(&sha);
+   sha256_chunk(&sha, in, size);
+   sha256_final(&sha);
+   sha256_subhash(&sha, shahash.u32);
+
+   for (unsigned i = 0; i < 32; i++)
+      snprintf(out + 2 * i, 3, "%02x", (unsigned)shahash.u8[i]);
+}
+

sha256.h

@@ -0,0 +1,28 @@
+/*  SSNES - A Super Nintendo Entertainment System (SNES) Emulator frontend for libsnes.
+ *  Copyright (C) 2010-2011 - Hans-Kristian Arntzen
+ *
+ *  Some code herein may be based on code found in BSNES.
+ * 
+ *  SSNES is free software: you can redistribute it and/or modify it under the terms
+ *  of the GNU General Public License as published by the Free Software Found-
+ *  ation, either version 3 of the License, or (at your option) any later version.
+ *
+ *  SSNES is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
+ *  without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
+ *  PURPOSE.  See the GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License along with SSNES.
+ *  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef __SSNES_SHA256_H
+#define __SSNES_SHA256_H
+
+#include <stdint.h>
+#include <stddef.h>
+
+// Hashes sha256 and outputs a human readable string for comparing with the cheat XML values.
+void sha256_hash(char *out, const uint8_t *in, size_t size);
+
+#endif
+

ssnes.c

@@ -32,6 +32,7 @@
 #include "movie.h"
 #include "netplay.h"
 #include "strl.h"
+#include "cheats.h"
 #include <assert.h>
 #ifdef HAVE_SRC
 #include <samplerate.h>
@@ -248,7 +249,7 @@ static void fill_pathname_noext(char *out_path, const char *in_path, const char
 #endif
 
 #ifdef _WIN32
-#define PACKAGE_VERSION "0.4"
+#define PACKAGE_VERSION "0.4.1"
 #endif
 
 #include "config.features.h"
@@ -315,7 +316,8 @@ static void print_help(void)
    puts("\t-r/--record: Path to record video file. Settings for video/audio codecs are found in config file.");
 #endif
    puts("\t-v/--verbose: Verbose logging");
-   puts("\t-U/--ups: Specifies path for UPS patch that will be applied to ROM.\n");
+   puts("\t-U/--ups: Specifies path for UPS patch that will be applied to ROM.");
+   puts("\t-D/--detach: Detach SSNES from the running console. Not relevant for all platforms.\n");
 
    print_features();
 }
@@ -367,6 +369,7 @@ static void parse_input(int argc, char *argv[])
       { "frames", 1, NULL, 'F' },
       { "port", 1, &val, 'p' },
       { "ups", 1, NULL, 'U' },
+      { "detach", 0, NULL, 'D' },
       { NULL, 0, NULL, 0 }
    };
 
@@ -384,7 +387,7 @@ static void parse_input(int argc, char *argv[])
 #define CONFIG_FILE_ARG
 #endif
 
-   char optstring[] = "hs:vS:m:p4jJg:b:B:Y:Z:P:HC:F:U:" FFMPEG_RECORD_ARG CONFIG_FILE_ARG;
+   char optstring[] = "hs:vS:m:p4jJg:b:B:Y:Z:P:HC:F:U:D" FFMPEG_RECORD_ARG CONFIG_FILE_ARG;
    for(;;)
    {
       val = 0;
@@ -503,6 +506,12 @@ static void parse_input(int argc, char *argv[])
             strlcpy(g_extern.ups_name, optarg, sizeof(g_extern.ups_name));
             break;
 
+         case 'D':
+#ifdef _WIN32
+            FreeConsole();
+#endif
+            break;
+
          case 0:
             switch (val)
             {
@@ -708,6 +717,20 @@ static void deinit_msg_queue(void)
       msg_queue_free(g_extern.msg_queue);
 }
 
+#ifdef HAVE_XML
+static void init_cheats(void)
+{
+   if (*g_settings.cheat_database)
+      g_extern.cheat = cheat_manager_new(g_settings.cheat_database);
+}
+
+static void deinit_cheats(void)
+{
+   if (g_extern.cheat)
+      cheat_manager_free(g_extern.cheat);
+}
+#endif
+
 static void init_rewind(void)
 {
    if (g_settings.rewind_enable)
@@ -953,13 +976,17 @@ static void check_savestates(void)
 
 static void check_fullscreen(void)
 {
+   static bool was_pressed = false;
+   bool pressed;
    // If we go fullscreen we drop all drivers and reinit to be safe.
-   if (driver.input->key_pressed(driver.input_data, SSNES_FULLSCREEN_TOGGLE_KEY))
+   if ((pressed = driver.input->key_pressed(driver.input_data, SSNES_FULLSCREEN_TOGGLE_KEY)) && !was_pressed)
    {
       g_settings.video.fullscreen = !g_settings.video.fullscreen;
       uninit_drivers();
       init_drivers();
    }
+
+   was_pressed = pressed;
 }
 
 static void check_stateslots(void)
@@ -1173,7 +1200,7 @@ static void check_reset(void)
 static void check_shader_dir(void)
 {
    static bool old_pressed_next = false;
-   static bool old_pressed_prev = true;
+   static bool old_pressed_prev = false;
 
    if (!g_extern.shader_dir.elems || !driver.video->xml_shader)
       return;
@@ -1216,6 +1243,31 @@ static void check_shader_dir(void)
    old_pressed_prev = pressed_prev;
 
 }
+
+static void check_cheats(void)
+{
+   if (!g_extern.cheat)
+      return;
+
+   static bool old_pressed_prev = false;
+   static bool old_pressed_next = false;
+   static bool old_pressed_toggle = false;
+
+   bool pressed_next = driver.input->key_pressed(driver.input_data, SSNES_CHEAT_INDEX_PLUS);
+   bool pressed_prev = driver.input->key_pressed(driver.input_data, SSNES_CHEAT_INDEX_MINUS);
+   bool pressed_toggle = driver.input->key_pressed(driver.input_data, SSNES_CHEAT_TOGGLE);
+
+   if (pressed_next && !old_pressed_next)
+      cheat_manager_index_next(g_extern.cheat);
+   else if (pressed_prev && !old_pressed_prev)
+      cheat_manager_index_prev(g_extern.cheat);
+   else if (pressed_toggle && !old_pressed_toggle)
+      cheat_manager_toggle(g_extern.cheat);
+
+   old_pressed_prev = pressed_prev;
+   old_pressed_next = pressed_next;
+   old_pressed_toggle = pressed_toggle;
+}
 #endif
 
 static void do_state_checks(void)
@@ -1223,6 +1275,9 @@ static void do_state_checks(void)
    if (!g_extern.netplay)
    {
       check_reset();
+#ifdef HAVE_XML
+      check_cheats();
+#endif
       check_pause();
       if (g_extern.is_paused)
          return;
@@ -1275,6 +1330,10 @@ int main(int argc, char *argv[])
    if (!init_rom_file(g_extern.game_type))
       goto error;
 
+#ifdef HAVE_XML
+   init_cheats();
+#endif
+
    init_msg_queue();
    init_movie();
 
@@ -1376,6 +1435,10 @@ int main(int argc, char *argv[])
    if (!g_extern.netplay)
       deinit_rewind();
 
+#ifdef HAVE_XML
+   deinit_cheats();
+#endif
+
    deinit_movie();
    deinit_msg_queue();
 

ssnes.cfg

@@ -5,7 +5,7 @@
 
 #### Video
 
-# Windowed xscale and yscale (Real x res: 296 * xscale, real y scale: 224 * xscale)
+# Windowed xscale and yscale (Real x res: 224 * xscale * aspect_ratio, real y scale: 224 * xscale)
 # video_xscale = 3.0
 # video_yscale = 3.0
 
@@ -16,6 +16,9 @@
 # Start in fullscreen. Can be changed at runtime.
 # video_fullscreen = false
 
+# Force 16-bit colors. Apparently some video cards in use today have troubles with 32-bit ...
+# video_force_16bit = false
+
 # Video vsync.
 # video_vsync = true
 
@@ -252,3 +255,11 @@
 # When being client over netplay, use keybinds for player 1.
 # netplay_client_swap_input = false
 
+
+# Path to XML cheat database (as used by bSNES).
+# cheat_database_path =
+
+# Cheats.
+# input_cheat_index_plus = y
+# input_cheat_index_minus = t
+# input_cheat_toggle = u

strl.c

@@ -41,7 +41,12 @@ size_t strlcat(char *dest, const char *source, size_t size)
 {
    size_t len = strlen(dest);
    dest += len;
-   size -= len;
+
+   if (len > size)
+      size = 0;
+   else
+      size -= len;
+
    return len + strlcpy(dest, source, size);
 }
 #endif

strl.h

@@ -20,7 +20,10 @@
 
 #include <string.h>
 #include <stddef.h>
+
+#ifdef HAVE_CONFIG
 #include "config.h"
+#endif
 
 #ifndef HAVE_STRL
 // Avoid possible naming collitions during link since we prefer to use the actual name.