From c0f792760991950d94443a09cacf777db4a617e8 Mon Sep 17 00:00:00 2001
From: Ricardo Cruz <rick2@aeiou.pt>
Date: Mon, 12 Apr 2004 21:14:17 +0000
Subject: [PATCH] A first attempt to make a simple and clean way of an on the
 fly videomode change. But there is this problem: it seems to work on the
 first transition from SDL to OpenGL, but doesn't work well in the following
 transitions to OpenGL. I think it is not really related with the texture
 code, but with the st_video_setup_gl(). The way OpenGL is initialized.
 Ingo/Tobias, please give a look at this ;)

SVN-Revision: 507
---
 src/setup.cpp   | 24 +++++++++++++++++-------
 src/texture.cpp | 16 ++++++++++++++++
 2 files changed, 33 insertions(+), 7 deletions(-)

diff --git a/src/setup.cpp b/src/setup.cpp
index a1c8af96c..dba7cf02e 100644
--- a/src/setup.cpp
+++ b/src/setup.cpp
@@ -373,6 +373,7 @@ void st_menu(void)
 
   options_menu->additem(MN_LABEL,"Options",0,0);
   options_menu->additem(MN_HL,"",0,0);
+  options_menu->additem(MN_TOGGLE,"OpenGL",use_gl,0);
   options_menu->additem(MN_TOGGLE,"Fullscreen",use_fullscreen,0);
   if(audio_device)
     {
@@ -509,18 +510,27 @@ void process_options_menu(void)
   switch (options_menu->check())
     {
     case 2:
-      if(use_fullscreen != options_menu->item[2].toggled)
+      if(use_gl != options_menu->item[2].toggled)
         {
-          use_fullscreen = !use_fullscreen;
+#ifndef NOOPENGL
+          use_gl = !use_gl;
           st_video_setup();
+#endif
         }
       break;
     case 3:
-      if(use_sound != options_menu->item[3].toggled)
-        use_sound = !use_sound;
+      if(use_fullscreen != options_menu->item[3].toggled)
+        {
+          use_fullscreen = !use_fullscreen;
+          st_video_setup();
+        }
       break;
     case 4:
-      if(use_music != options_menu->item[4].toggled)
+      if(use_sound != options_menu->item[4].toggled)
+        use_sound = !use_sound;
+      break;
+    case 5:
+      if(use_music != options_menu->item[5].toggled)
         {
           if(use_music)
             {
@@ -540,8 +550,8 @@ void process_options_menu(void)
             }
         }
       break;
-    case 5:
-      if(show_fps != options_menu->item[5].toggled)
+    case 6:
+      if(show_fps != options_menu->item[6].toggled)
         show_fps = !show_fps;
       break;
     }
diff --git a/src/texture.cpp b/src/texture.cpp
index ef22a3e77..ea6ce13ba 100644
--- a/src/texture.cpp
+++ b/src/texture.cpp
@@ -17,6 +17,8 @@
 #include "setup.h"
 #include "texture.h"
 
+#define NO_TEXTURE 0
+
 void (*texture_load)     (texture_type* ptexture, const std::string& file, int use_alpha);
 void (*texture_load_part)(texture_type* ptexture, const std::string& file, int x, int y, int w, int h, int use_alpha);
 void (*texture_free)     (texture_type* ptexture);  
@@ -137,6 +139,9 @@ void texture_free_gl(texture_type* ptexture)
 
 void texture_draw_gl(texture_type* ptexture, float x, float y, Uint8 alpha, bool update)
 {
+if(ptexture->gl_texture == NO_TEXTURE)
+  texture_create_gl(ptexture->sdl_surface,&ptexture->gl_texture);
+
 float pw = power_of_two(ptexture->w);
 float ph = power_of_two(ptexture->h);
 
@@ -168,6 +173,9 @@ if(update)
 
 void texture_draw_bg_gl(texture_type* ptexture, Uint8 alpha, bool update)
 {
+if(ptexture->gl_texture == NO_TEXTURE)
+  texture_create_gl(ptexture->sdl_surface,&ptexture->gl_texture);
+
 float pw = power_of_two(ptexture->w);
 float ph = power_of_two(ptexture->h);
 
@@ -196,6 +204,9 @@ if(update)
 
 void texture_draw_part_gl(texture_type* ptexture,float sx, float sy, float x, float y, float w, float h, Uint8 alpha, bool update)
 {
+if(ptexture->gl_texture == NO_TEXTURE)
+  texture_create_gl(ptexture->sdl_surface,&ptexture->gl_texture);
+
 float pw = power_of_two(ptexture->w);
 float ph = power_of_two(ptexture->h);
 
@@ -254,6 +265,7 @@ void texture_load_sdl(texture_type* ptexture, const std::string& file, int use_a
   ptexture->w = ptexture->sdl_surface->w;
   ptexture->h = ptexture->sdl_surface->h;
   
+  ptexture->gl_texture = NO_TEXTURE;
 }
 
 void texture_load_part_sdl(texture_type* ptexture, const std::string& file, int x, int y, int w, int h,  int use_alpha)
@@ -416,5 +428,9 @@ void texture_draw_part_sdl(texture_type* ptexture, float sx, float sy, float x,
 void texture_free_sdl(texture_type* ptexture)
 {
   SDL_FreeSurface(ptexture->sdl_surface);
+#ifndef NOOPENGL
+  if(ptexture->gl_texture != NO_TEXTURE)
+    glDeleteTextures(1, &ptexture->gl_texture);
+#endif
 }
 
-- 
2.11.0