Framebuffer done.

src/dusksdl2/display/renderbackbuffer.c

@@ -11,27 +11,16 @@
 #include "display/camera/camera.h"
 
 #if RENDER_USE_FRAMEBUFFER
-  SDL_Texture *RENDER_BACKBUFFER;
-#else
-
+  framebuffer_t RENDER_BACKBUFFER;
 #endif
 
 errorret_t renderBackBufferInit(void) {
   #if RENDER_USE_FRAMEBUFFER
-    // RENDER_BACKBUFFER = SDL_CreateTexture(
-    //   RENDER_RENDERER,
-    //   SDL_PIXELFORMAT_RGBA8888,
-    //   SDL_TEXTUREACCESS_TARGET,
-    //   RENDER_WIDTH,
-    //   RENDER_HEIGHT
-    // );
-
-    if(!RENDER_BACKBUFFER) {
-      errorThrow("SDL_CreateTexture failed: %s", SDL_GetError());
-    }
-
-    // Make sure we unbind the back buffer after creation
-    // SDL_SetRenderTarget(RENDER_RENDERER, NULL);
+    frameBufferInit(
+      &RENDER_BACKBUFFER,
+      RENDER_WIDTH,
+      RENDER_HEIGHT
+    );
   #else
     // No back buffer needed for window rendering
   #endif
@@ -41,7 +30,7 @@ errorret_t renderBackBufferInit(void) {
 
 void renderBackBufferBind(void) {
   #if RENDER_USE_FRAMEBUFFER
-    // SDL_SetRenderTarget(RENDER_RENDERER, RENDER_BACKBUFFER);
+    frameBufferBind(&RENDER_BACKBUFFER);
   #endif
   
   // Fill background with cornflower blue.
@@ -51,7 +40,7 @@ void renderBackBufferBind(void) {
 
 void renderBackBufferUnbind(void) {
   #if RENDER_USE_FRAMEBUFFER
-    // SDL_SetRenderTarget(RENDER_RENDERER, NULL);
+    frameBufferBind(NULL);
   #endif
 }
 
@@ -82,11 +71,11 @@ void renderBackBufferDraw(void) {
     // Draw the back buffer texture
     spriteBatchClear();
     spriteBatchPush(
-      NULL,
+      &RENDER_BACKBUFFER.texture,
       renderX, renderY,
       renderX+renderWidth, renderY+renderHeight,
-      0xFF, 0x00, 0xFF, 0xFF,
-      0, 0, 1, 1
+      0xFF, 0xFF, 0xFF, 0xFF,
+      0, 1, 1, 0
     );
     spriteBatchFlush();
     cameraScreenPop();
@@ -97,8 +86,7 @@ void renderBackBufferDraw(void) {
 
 errorret_t renderBackBufferDispose(void) {
   #if RENDER_USE_FRAMEBUFFER
-    SDL_DestroyTexture(RENDER_BACKBUFFER);
-    RENDER_BACKBUFFER = NULL;
+    frameBufferDispose(&RENDER_BACKBUFFER);
   #endif
 
   errorOk();