From 708384a6b1fca22c6352deb79e52422266dc307e Mon Sep 17 00:00:00 2001
From: Bjørn Lindeijer <bjorn@lindeijer.nl>
Date: Mon, 18 Apr 2005 15:53:56 +0000
Subject: Ok, of course the biggest problem to solve with OpenGL integration is
 loading and rendering of images.

---
 src/graphics.cpp | 27 +++++++++++++++++++--------
 1 file changed, 19 insertions(+), 8 deletions(-)

(limited to 'src/graphics.cpp')

diff --git a/src/graphics.cpp b/src/graphics.cpp
index 88ba744a..e0763c29 100644
--- a/src/graphics.cpp
+++ b/src/graphics.cpp
@@ -32,6 +32,16 @@ SDL_Surface *screen;
 Graphics::Graphics():
     mouseCursor(NULL)
 {
+    if (useOpenGL) {
+        // Setup OpenGL
+        glViewport(0, 0, 800, 600);
+        glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
+        int gotDoubleBuffer;
+        SDL_GL_GetAttribute(SDL_GL_DOUBLEBUFFER, &gotDoubleBuffer);
+        logger.log("Using OpenGL %s double buffering.",
+                (gotDoubleBuffer ? "with" : "without"));
+    }
+
 #ifdef USE_OPENGL
     setTargetPlane(800, 600);
 #else
@@ -125,12 +135,13 @@ void Graphics::updateScreen()
     SDL_GetMouseState(&mouseX, &mouseY);
     mouseCursor->draw(screen, mouseX - 5, mouseY - 2);
 
-#ifdef USE_OPENGL
-    glFlush();
-    glFinish();
-    SDL_GL_SwapBuffers();
-    glClear(GL_COLOR_BUFFER_BIT);
-#else
-    SDL_Flip(screen);
-#endif
+    if (useOpenGL) {
+        glFlush();
+        glFinish();
+        SDL_GL_SwapBuffers();
+        glClear(GL_COLOR_BUFFER_BIT);
+    }
+    else {
+        SDL_Flip(screen);
+    }
 }
-- 
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