From 41b2af66d56e81faa771d891b0c1be1d47658c5d Mon Sep 17 00:00:00 2001
From: Themaister <maister@archlinux.us>
Date: Sun, 6 Mar 2011 18:19:31 +0100
Subject: [PATCH] Add settings.

---
 config.def.h |  6 ++++++
 general.h    |  6 ++++++
 settings.c   | 12 ++++++++++++
 ssnes.cfg    | 14 ++++++++++++++
 4 files changed, 38 insertions(+)

diff --git a/config.def.h b/config.def.h
index 6d7255619e..e5e3f2e135 100644
--- a/config.def.h
+++ b/config.def.h
@@ -113,6 +113,12 @@ static const unsigned font_size = 48;
 static const float message_pos_offset_x = 0.05;
 static const float message_pos_offset_y = 0.05;
 
+// Render-to-texture before rendering to screen (multi-pass shaders)
+static const bool render_to_texture = false;
+static const float fbo_scale_x = 2.0;
+static const float fbo_scale_y = 2.0;
+static const bool second_pass_smooth = true;
+
 #define SNES_ASPECT_RATIO (4.0/3)
 
 ////////////////
diff --git a/general.h b/general.h
index a5a7c0383b..651763e556 100644
--- a/general.h
+++ b/general.h
@@ -72,6 +72,12 @@ struct settings
       unsigned filter;
       enum ssnes_shader_type shader_type;
 
+      bool render_to_texture;
+      double fbo_scale_x;
+      double fbo_scale_y;
+      char second_pass_shader[256];
+      bool second_pass_smooth;
+
       char font_path[256];
       unsigned font_size;
       float msg_pos_x;
diff --git a/settings.c b/settings.c
index d933baa897..047a754847 100644
--- a/settings.c
+++ b/settings.c
@@ -115,6 +115,13 @@ static void set_defaults(void)
    g_settings.video.msg_pos_y = message_pos_offset_y;
 #endif
 
+#if defined(HAVE_CG) || defined(HAVE_XML)
+   g_settings.video.render_to_texture = render_to_texture;
+   g_settings.video.fbo_scale_x = fbo_scale_x;
+   g_settings.video.fbo_scale_y = fbo_scale_y;
+   g_settings.video.second_pass_smooth = second_pass_smooth;
+#endif
+
    g_settings.audio.enable = audio_enable;
    g_settings.audio.out_rate = out_rate;
    g_settings.audio.in_rate = in_rate;
@@ -280,6 +287,11 @@ static void parse_config_file(void)
 
    CONFIG_GET_STRING(video.cg_shader_path, "video_cg_shader");
    CONFIG_GET_STRING(video.bsnes_shader_path, "video_bsnes_shader");
+   CONFIG_GET_STRING(video.second_pass_shader, "video_second_pass_shader");
+   CONFIG_GET_BOOL(video.render_to_texture, "video_render_to_texture");
+   CONFIG_GET_DOUBLE(video.fbo_scale_x, "video_fbo_scale_x");
+   CONFIG_GET_DOUBLE(video.fbo_scale_x, "video_fbo_scale_y");
+   CONFIG_GET_BOOL(video.second_pass_smooth, "video_second_pass_smooth");
 
 #ifdef HAVE_FREETYPE
    CONFIG_GET_STRING(video.font_path, "video_font_path");
diff --git a/ssnes.cfg b/ssnes.cfg
index 715b4ecf6d..1919bf0680 100644
--- a/ssnes.cfg
+++ b/ssnes.cfg
@@ -38,6 +38,20 @@
 # Which shader type to use. Valid values are "cg", "bsnes", "none" and "auto"
 # video_shader_type = auto
 
+# Render to texture first. Useful when doing multi-pass shaders or control the output of shaders better.
+# video_render_to_texture = false
+
+# Defines the video scale of render-to-texture. 
+# The output FBO size is scaled by these amounts against the input size (typically 256 * 224 for SNES).
+# video_fbo_scale_x = 2.0
+# video_fbo_scale_y = 2.0
+
+# Define shader to use for second pass (needs render-to-texture).
+# video_second_pass_shader = "/path/to/second/shader.{cg,shader}"
+
+# Defines if bilinear filtering is used during second pass (needs render-to-texture).
+# video_second_pass_smooth = true
+
 # CPU-based filter. Valid ones are: hq2x, hq4x, grayscale, bleed, ntsc.
 # video_filter = ntsc