From caf87b1198acc6f78507ac3f8d8e3faa55fae2d4 Mon Sep 17 00:00:00 2001
From: Themaister <maister@archlinux.us>
Date: Tue, 29 Mar 2011 18:28:31 +0200
Subject: [PATCH] Font handling and stuff.

---
 config.def.h |  2 ++
 gfx/gl.c     |  8 ++++++++
 ssnes.c      | 49 +++++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 59 insertions(+)

diff --git a/config.def.h b/config.def.h
index 332baffebc..6ed3417fa4 100644
--- a/config.def.h
+++ b/config.def.h
@@ -221,6 +221,8 @@ static const struct snes_keybind snes_keybinds_1[] = {
    { SSNES_MOVIE_RECORD_TOGGLE,        SDLK_o,      NO_BTN,      AXIS_NONE },
    { SSNES_PAUSE_TOGGLE,               SDLK_p,      NO_BTN,      AXIS_NONE },
    { 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 },
    { -1 }
 };
 
diff --git a/gfx/gl.c b/gfx/gl.c
index b621807376..c303b7ec17 100644
--- a/gfx/gl.c
+++ b/gfx/gl.c
@@ -1049,6 +1049,13 @@ static bool gl_focus(void *data)
    return (SDL_GetAppState() & (SDL_APPINPUTFOCUS | SDL_APPACTIVE)) == (SDL_APPINPUTFOCUS | SDL_APPACTIVE);
 }
 
+static bool gl_xml_shader(void *data, const char *path)
+{
+   (void)data;
+   (void)path;
+   return true;
+}
+
 const video_driver_t video_gl = {
    .init = gl_init,
    .frame = gl_frame,
@@ -1056,6 +1063,7 @@ const video_driver_t video_gl = {
    .set_nonblock_state = gl_set_nonblock_state,
    .focus = gl_focus,
    .free = gl_free,
+   .xml_shader = gl_xml_shader,
    .ident = "gl"
 };
 
diff --git a/ssnes.c b/ssnes.c
index 09c7223dcc..a05202573b 100644
--- a/ssnes.c
+++ b/ssnes.c
@@ -1158,6 +1158,51 @@ static void check_reset(void)
    }
 }
 
+#ifdef HAVE_XML
+static void check_shader_dir(void)
+{
+   static bool old_pressed_next = false;
+   static bool old_pressed_prev = true;
+
+   if (!g_extern.shader_dir.elems || !driver.video->xml_shader)
+      return;
+
+   bool should_apply = false;
+   bool pressed_next = driver.input->key_pressed(driver.input_data, SSNES_SHADER_NEXT);
+   bool pressed_prev = driver.input->key_pressed(driver.input_data, SSNES_SHADER_PREV);
+   if (pressed_next && !old_pressed_next)
+   {
+      should_apply = true;
+      g_extern.shader_dir.ptr = (g_extern.shader_dir.ptr + 1) % g_extern.shader_dir.size;
+   }
+   else if (pressed_prev && !old_pressed_prev)
+   {
+      should_apply = true;
+      if (g_extern.shader_dir.ptr == 0)
+         g_extern.shader_dir.ptr = g_extern.shader_dir.size - 1;
+      else
+         g_extern.shader_dir.ptr--;
+   }
+
+   if (should_apply)
+   {
+      const char *shader = g_extern.shader_dir.elems[g_extern.shader_dir.ptr];
+      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);
+      msg_queue_push(g_extern.msg_queue, msg, 1, 120);
+      SSNES_LOG("Applying shader \"%s\"\n", shader);
+
+      if (!driver.video->xml_shader(driver.video_data, shader))
+         SSNES_WARN("Failed to apply shader!\n");
+   }
+
+   old_pressed_next = pressed_next;
+   old_pressed_prev = pressed_prev;
+
+}
+#endif
+
 static void do_state_checks(void)
 {
    if (!g_extern.netplay)
@@ -1178,6 +1223,10 @@ static void do_state_checks(void)
 
       if (!g_extern.bsv_movie_playback)
          check_movie_record();
+
+#ifdef HAVE_XML
+      check_shader_dir();
+#endif
    }
 
    check_fullscreen();