Shader directory looks for Cg/Cgp shaders.

driver.c

@@ -528,7 +528,7 @@ static void init_shader_dir(void)
    if (!*g_settings.video.shader_dir)
       return;
 
-   g_extern.shader_dir.list = dir_list_new(g_settings.video.shader_dir, "shader", false);
+   g_extern.shader_dir.list = dir_list_new(g_settings.video.shader_dir, "shader|cg|cgp", false);
    if (g_extern.shader_dir.list->size == 0)
    {
       deinit_shader_dir();

driver.h

@@ -105,6 +105,14 @@ struct retro_keybind
    uint32_t joyaxis;
 };
 
+enum rarch_shader_type
+{
+   RARCH_SHADER_CG,
+   RARCH_SHADER_BSNES,
+   RARCH_SHADER_AUTO,
+   RARCH_SHADER_NONE
+};
+
 typedef struct video_info
 {
    unsigned width;
@@ -177,7 +185,7 @@ typedef struct video_driver
    // Is the window still active?
    bool (*alive)(void *data);
    bool (*focus)(void *data); // Does the window have focus?
-   bool (*xml_shader)(void *data, const char *path); // Sets XML-shader. Might not be implemented.
+   bool (*set_shader)(void *data, enum rarch_shader_type type, const char *path); // Sets shader. Might not be implemented.
    void (*free)(void *data);
    const char *ident;
 
@@ -281,7 +289,7 @@ extern const input_driver_t input_null;
 #define video_set_nonblock_state_func(state) driver.video->set_nonblock_state(driver.video_data, state)
 #define video_alive_func()                      driver.video->alive(driver.video_data)
 #define video_focus_func()                      driver.video->focus(driver.video_data)
-#define video_xml_shader_func(path)             driver.video->xml_shader(driver.video_data, path)
+#define video_set_shader_func(type, path)       driver.video->set_shader(driver.video_data, type, path)
 #define video_set_rotation_func(rotate)         driver.video->set_rotation(driver.video_data, rotate)
 #define video_set_aspect_ratio_func(aspect_idx) driver.video->set_aspect_ratio(driver.video_data, aspect_idx)
 #define video_viewport_size_func(width, height) driver.video->viewport_size(driver.video_data, width, height)

general.h

@@ -73,14 +73,6 @@
 
 #define MAX_PLAYERS 8
 
-enum rarch_shader_type
-{
-   RARCH_SHADER_CG,
-   RARCH_SHADER_BSNES,
-   RARCH_SHADER_AUTO,
-   RARCH_SHADER_NONE
-};
-
 // All config related settings go here.
 struct settings
 {

gfx/gl.c

@@ -1447,8 +1447,8 @@ static bool gl_focus(void *data)
    return gfx_ctx_window_has_focus();
 }
 
-#ifdef HAVE_XML
-static bool gl_xml_shader(void *data, const char *path)
+#if defined(HAVE_XML) || defined(HAVE_CG)
+static bool gl_set_shader(void *data, enum rarch_shader_type type, const char *path)
 {
    gl_t *gl = (gl_t*)data;
 
@@ -1459,8 +1459,26 @@ static bool gl_xml_shader(void *data, const char *path)
 
    gl_shader_deinit();
 
-   if (!gl_glsl_init(path))
-      return false;
+   switch (type)
+   {
+#ifdef HAVE_XML
+      case RARCH_SHADER_BSNES:
+         if (!gl_glsl_init(path))
+            return false;
+         break;
+#endif
+
+#ifdef HAVE_CG
+      case RARCH_SHADER_CG:
+         if (!gl_cg_init(path))
+            return false;
+         break;
+#endif
+
+      default:
+         RARCH_ERR("Invalid shader type in gl_set_shader().\n");
+         return false;
+   }
 
 #ifdef HAVE_FBO
    // Set up render to texture again.
@@ -1607,8 +1625,8 @@ const video_driver_t video_gl = {
    gl_alive,
    gl_focus,
 
-#ifdef HAVE_XML
-   gl_xml_shader,
+#if defined(HAVE_XML) || defined(HAVE_CG)
+   gl_set_shader,
 #else
    NULL,
 #endif

retroarch.c

@@ -2264,7 +2264,7 @@ static void check_shader_dir(void)
    static bool old_pressed_next = false;
    static bool old_pressed_prev = false;
 
-   if (!g_extern.shader_dir.list || !driver.video->xml_shader)
+   if (!g_extern.shader_dir.list || !driver.video->set_shader)
       return;
 
    bool should_apply = false;
@@ -2286,18 +2286,29 @@ static void check_shader_dir(void)
 
    if (should_apply)
    {
-      const char *shader = g_extern.shader_dir.list->elems[g_extern.shader_dir.ptr].data;
+      const char *shader          = g_extern.shader_dir.list->elems[g_extern.shader_dir.ptr].data;
+      enum rarch_shader_type type = RARCH_SHADER_NONE;
 
-      strlcpy(g_settings.video.bsnes_shader_path, shader, sizeof(g_settings.video.bsnes_shader_path));
-      g_settings.video.shader_type = RARCH_SHADER_BSNES;
+      const char *ext = strrchr(shader, '.');
+      if (ext)
+      {
+         if (strcmp(ext, ".shader") == 0)
+            type = RARCH_SHADER_BSNES;
+         else if (strcmp(ext, ".cg") == 0 || strcmp(ext, ".cgp") == 0)
+            type = RARCH_SHADER_CG;
+      }
+
+      if (type == RARCH_SHADER_NONE)
+         return;
 
       msg_queue_clear(g_extern.msg_queue);
+
       char msg[512];
-      snprintf(msg, sizeof(msg), "XML shader #%u: \"%s\"", (unsigned)g_extern.shader_dir.ptr, shader);
+      snprintf(msg, sizeof(msg), "Shader #%u: \"%s\"", (unsigned)g_extern.shader_dir.ptr, shader);
       msg_queue_push(g_extern.msg_queue, msg, 1, 120);
       RARCH_LOG("Applying shader \"%s\"\n", shader);
 
-      if (!video_xml_shader_func(shader))
+      if (!video_set_shader_func(type, shader))
          RARCH_WARN("Failed to apply shader.\n");
    }
 

retroarch.cfg

@@ -285,7 +285,7 @@
 # input_rate_step_up = kp_plus
 # input_rate_step_down = kp_minus
 
-# Applies next and previous XML shader in directory.
+# Applies next and previous XML/Cg shader in directory.
 # input_shader_next = m
 # input_shader_prev = n