From 9974540c73e0c6e03f2da46483e38363d62a2e7b Mon Sep 17 00:00:00 2001
From: Brian Paul <brian.paul@tungstengraphics.com>
Date: Wed, 1 Mar 2006 02:02:43 +0000
Subject: remove temporary tokens, more error checks for blit function

---
 src/mesa/main/fbobject.c | 51 ++++++++++++++++++++++++++++++++++++------------
 1 file changed, 39 insertions(+), 12 deletions(-)

(limited to 'src/mesa/main')

diff --git a/src/mesa/main/fbobject.c b/src/mesa/main/fbobject.c
index 3e425bd672..6aeca7b721 100644
--- a/src/mesa/main/fbobject.c
+++ b/src/mesa/main/fbobject.c
@@ -34,17 +34,11 @@
 #include "framebuffer.h"
 #include "hash.h"
 #include "renderbuffer.h"
+#include "state.h"
 #include "teximage.h"
 #include "texstore.h"
 
 
-/* XXX temporarily here */
-#define GL_READ_FRAMEBUFFER_EXT                0x90
-#define GL_DRAW_FRAMEBUFFER_EXT                0x9a
-#define GL_DRAW_FRAMEBUFFER_BINDING_EXT        GL_FRAMEBUFFER_BINDING_EXT
-#define GL_READ_FRAMEBUFFER_BINDING_EXT        0x9b
-
-
 /**
  * Notes:
  *
@@ -1527,6 +1521,14 @@ _mesa_BlitFramebufferEXT(GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1,
    ASSERT_OUTSIDE_BEGIN_END(ctx);
    FLUSH_VERTICES(ctx, _NEW_BUFFERS);
 
+   if (ctx->NewState) {
+      _mesa_update_state(ctx);
+   }
+
+   if (!ctx->ReadBuffer) {
+      /* XXX */
+   }
+
    /* check for complete framebuffers */
    if (ctx->DrawBuffer->_Status != GL_FRAMEBUFFER_COMPLETE_EXT ||
        ctx->ReadBuffer->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) {
@@ -1535,11 +1537,8 @@ _mesa_BlitFramebufferEXT(GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1,
       return;
    }
 
-   /* depth/stencil must be blitted with nearest filtering */
-   if ((mask & (GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT))
-        && filter != GL_NEAREST) {
-      _mesa_error(ctx, GL_INVALID_OPERATION,
-             "glBlitFramebufferEXT(depth/stencil requires GL_NEAREST filter");
+   if (filter != GL_NEAREST && filter != GL_LINEAR) {
+      _mesa_error(ctx, GL_INVALID_ENUM, "glBlitFramebufferEXT(filter)");
       return;
    }
 
@@ -1550,6 +1549,34 @@ _mesa_BlitFramebufferEXT(GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1,
       return;
    }
 
+   /* depth/stencil must be blitted with nearest filtering */
+   if ((mask & (GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT))
+        && filter != GL_NEAREST) {
+      _mesa_error(ctx, GL_INVALID_OPERATION,
+             "glBlitFramebufferEXT(depth/stencil requires GL_NEAREST filter");
+      return;
+   }
+
+   if (mask & GL_STENCIL_BUFFER_BIT) {
+      struct gl_renderbuffer *readRb = ctx->ReadBuffer->_StencilBuffer;
+      struct gl_renderbuffer *drawRb = ctx->DrawBuffer->_StencilBuffer;
+      if (readRb->StencilBits != drawRb->StencilBits) {
+         _mesa_error(ctx, GL_INVALID_OPERATION,
+                     "glBlitFramebufferEXT(stencil buffer size mismatch");
+         return;
+      }
+   }
+
+   if (mask & GL_DEPTH_BUFFER_BIT) {
+      struct gl_renderbuffer *readRb = ctx->ReadBuffer->_DepthBuffer;
+      struct gl_renderbuffer *drawRb = ctx->DrawBuffer->_DepthBuffer;
+      if (readRb->DepthBits != drawRb->DepthBits) {
+         _mesa_error(ctx, GL_INVALID_OPERATION,
+                     "glBlitFramebufferEXT(depth buffer size mismatch");
+         return;
+      }
+   }
+
    if (!ctx->Extensions.EXT_framebuffer_blit) {
       _mesa_error(ctx, GL_INVALID_OPERATION, "glBlitFramebufferEXT");
       return;
-- 
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