Major check-in of changes for GL_EXT_framebuffer_object extension.

Main driver impacts:
- new code for creating the Mesa GLframebuffer
- new span/pixel read/write code
Some drivers not yet updated/tested.

1 files changed, 45 insertions, 0 deletions

diff --git a/src/mesa/drivers/dri/i810/i810screen.c b/src/mesa/drivers/dri/i810/i810screen.c
index 072bcd0318e..f270df66b65 100644
--- a/src/mesa/drivers/dri/i810/i810screen.c
+++ b/src/mesa/drivers/dri/i810/i810screen.c
@@ -36,7 +36,10 @@ SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #include "glheader.h"
 #include "imports.h"
 #include "context.h"
+#include "framebuffer.h"
+#include "fbobject.h"
 #include "matrix.h"
+#include "renderbuffer.h"
 #include "simple_list.h"
 #include "utils.h"
 
@@ -330,22 +333,64 @@ i810DestroyScreen(__DRIscreenPrivate *sPriv)
 }
 
 
+/**
+ * Create a buffer which corresponds to the window.
+ */
 static GLboolean
 i810CreateBuffer( __DRIscreenPrivate *driScrnPriv,
                   __DRIdrawablePrivate *driDrawPriv,
                   const __GLcontextModes *mesaVis,
                   GLboolean isPixmap )
 {
+   i810ScreenPrivate *screen = (i810ScreenPrivate *) driScrnPriv->private;
+
    if (isPixmap) {
       return GL_FALSE; /* not implemented */
    }
    else {
+#if 0
       driDrawPriv->driverPrivate = (void *)
          _mesa_create_framebuffer(mesaVis,
                                   GL_FALSE,  /* software depth buffer? */
                                   mesaVis->stencilBits > 0,
                                   mesaVis->accumRedBits > 0,
                                   GL_FALSE /* s/w alpha planes */);
+#else
+      struct gl_framebuffer *fb = _mesa_create_framebuffer(mesaVis);
+
+      {
+         driRenderbuffer *frontRb
+            = driNewRenderbuffer(GL_RGBA, screen->cpp,
+                                 /*screen->frontOffset*/0, screen->backPitch);
+         i810SetSpanFunctions(frontRb, mesaVis);
+         _mesa_add_renderbuffer(fb, BUFFER_FRONT_LEFT, &frontRb->Base);
+      }
+
+      if (mesaVis->doubleBufferMode) {
+         driRenderbuffer *backRb
+            = driNewRenderbuffer(GL_RGBA, screen->cpp,
+                                 screen->backOffset, screen->backPitch);
+         i810SetSpanFunctions(backRb, mesaVis);
+         _mesa_add_renderbuffer(fb, BUFFER_BACK_LEFT, &backRb->Base);
+      }
+
+      if (mesaVis->depthBits == 16) {
+         driRenderbuffer *depthRb
+            = driNewRenderbuffer(GL_DEPTH_COMPONENT16, screen->cpp,
+                                 screen->depthOffset, screen->backPitch);
+         i810SetSpanFunctions(depthRb, mesaVis);
+         _mesa_add_renderbuffer(fb, BUFFER_DEPTH, &depthRb->Base);
+      }
+
+      _mesa_add_soft_renderbuffers(fb,
+                                   GL_FALSE, /* color */
+                                   GL_FALSE, /* depth */
+                                   mesaVis->stencilBits > 0,
+                                   mesaVis->accumRedBits > 0,
+                                   GL_FALSE, /* alpha */
+                                   GL_FALSE /* aux */);
+      driDrawPriv->driverPrivate = (void *) fb;
+#endif
       return (driDrawPriv->driverPrivate != NULL);
    }
 }