state_tracker

時間撮記:

2015-11-27 上午10:00:08 (9 年以前)

作者:

vboxsync

訊息:

OpenGL/state_tracker: GL_FRAMEBUFFER is equivalent to GL_DRAW_FRAMEBUFFER

檔案:

trunk/src/VBox/GuestHost/OpenGL/state_tracker/state_framebuffer.c

-              r52641
+              r58895
 static GLuint crStateFramebufferGet(CRFramebufferObjectState *fbo, GLenum target, CRFramebufferObject **apFBOs)
+{
+    /** @todo Since this function returns not more than one FBO, callers can be cleaned up. */
     GLuint cPBOs = 0;
     switch (target)
 …
             apFBOs[0] = fbo->readFB;
             break;
+        /* OpenGL glFramebufferTexture, glFramebufferRenderbuffer, glFramebufferRenderbuffer specs:
+         * "GL_FRAMEBUFFER is equivalent to GL_DRAW_FRAMEBUFFER."
+         */
+        case GL_FRAMEBUFFER:
         case GL_DRAW_FRAMEBUFFER:
             cPBOs = 1;
             apFBOs[0] = fbo->drawFB;
-            break;
-        case GL_FRAMEBUFFER:
-            if (fbo->readFB == fbo->drawFB)
+            {
-                cPBOs = 1;
-                apFBOs[0] = fbo->readFB;
+            }
-            else
+            {
-                cPBOs = 2;
-                apFBOs[0] = fbo->readFB;
-                apFBOs[1] = fbo->drawFB;
+            }
             break;
         default:

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