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, 56 insertions, 3 deletions

diff --git a/src/mesa/drivers/dri/mga/mgaspan.c b/src/mesa/drivers/dri/mga/mgaspan.c
index 4b2c5cd6829..4279dfd95bc 100644
--- a/src/mesa/drivers/dri/mga/mgaspan.c
+++ b/src/mesa/drivers/dri/mga/mgaspan.c
@@ -204,9 +204,9 @@ static void mgaDDSetBuffer(GLcontext *ctx, GLframebuffer *buffer,
    mgaContextPtr mmesa = MGA_CONTEXT(ctx);
    unsigned int   offset;
 
-   assert((bufferBit == DD_FRONT_LEFT_BIT) || (bufferBit == DD_BACK_LEFT_BIT));
+   assert((bufferBit == BUFFER_BIT_FRONT_LEFT) || (bufferBit == BUFFER_BIT_BACK_LEFT));
 
-   offset = (bufferBit == DD_FRONT_LEFT_BIT)
+   offset = (bufferBit == BUFFER_BIT_FRONT_LEFT)
        ? mmesa->mgaScreen->frontOffset
        : mmesa->mgaScreen->backOffset;
 
@@ -237,15 +237,17 @@ void mgaDDInitSpanFuncs( GLcontext *ctx )
 
    switch (mmesa->mgaScreen->cpp) {
    case 2:
+#if 0
       mgaInitPointers_565( swdd );
-
       swdd->ReadDepthSpan = mgaReadDepthSpan_16;
       swdd->WriteDepthSpan = mgaWriteDepthSpan_16;
       swdd->ReadDepthPixels = mgaReadDepthPixels_16;
       swdd->WriteDepthPixels = mgaWriteDepthPixels_16;
+#endif
       break;
 
    case 4:
+#if 0
       mgaInitPointers_8888( swdd );
       
       if (!mmesa->hw_stencil) {
@@ -264,6 +266,57 @@ void mgaDDInitSpanFuncs( GLcontext *ctx )
 	 swdd->ReadStencilPixels = mgaReadStencilPixels_24_8;
 	 swdd->WriteStencilPixels = mgaWriteStencilPixels_24_8;
       }
+#endif
       break;
    }
 }
+
+
+
+/**
+ * Plug in the Get/Put routines for the given driRenderbuffer.
+ */
+void
+mgaSetSpanFunctions(driRenderbuffer *drb, const GLvisual *vis)
+{
+   if (drb->Base.InternalFormat == GL_RGBA) {
+      if (vis->redBits == 5 && vis->greenBits == 6 && vis->blueBits == 5) {
+         mgaInitPointers_565(&drb->Base);
+      }
+      else {
+         mgaInitPointers_8888(&drb->Base);
+      }
+   }
+   else if (drb->Base.InternalFormat == GL_DEPTH_COMPONENT16) {
+      drb->Base.GetRow        = mgaReadDepthSpan_16;
+      drb->Base.GetValues     = mgaReadDepthPixels_16;
+      drb->Base.PutRow        = mgaWriteDepthSpan_16;
+      drb->Base.PutMonoRow    = mgaWriteMonoDepthSpan_16;
+      drb->Base.PutValues     = mgaWriteDepthPixels_16;
+      drb->Base.PutMonoValues = NULL;
+   }
+   else if (drb->Base.InternalFormat == GL_DEPTH_COMPONENT24) {
+      drb->Base.GetRow        = mgaReadDepthSpan_24_8;
+      drb->Base.GetValues     = mgaReadDepthPixels_24_8;
+      drb->Base.PutRow        = mgaWriteDepthSpan_24_8;
+      drb->Base.PutMonoRow    = mgaWriteMonoDepthSpan_24_8;
+      drb->Base.PutValues     = mgaWriteDepthPixels_24_8;
+      drb->Base.PutMonoValues = NULL;
+   }
+   else if (drb->Base.InternalFormat == GL_DEPTH_COMPONENT32) {
+      drb->Base.GetRow        = mgaReadDepthSpan_32;
+      drb->Base.GetValues     = mgaReadDepthPixels_32;
+      drb->Base.PutRow        = mgaWriteDepthSpan_32;
+      drb->Base.PutMonoRow    = mgaWriteMonoDepthSpan_32;
+      drb->Base.PutValues     = mgaWriteDepthPixels_32;
+      drb->Base.PutMonoValues = NULL;
+   }
+   else if (drb->Base.InternalFormat == GL_STENCIL_INDEX8_EXT) {
+      drb->Base.GetRow        = mgaReadStencilSpan_24_8;
+      drb->Base.GetValues     = mgaReadStencilPixels_24_8;
+      drb->Base.PutRow        = mgaWriteStencilSpan_24_8;
+      drb->Base.PutMonoRow    = mgaWriteMonoStencilSpan_24_8;
+      drb->Base.PutValues     = mgaWriteStencilPixels_24_8;
+      drb->Base.PutMonoValues = NULL;
+   }
+}