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mesa: generate GL_INVALID_OPERATION for missing z/stencil when blitting

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If glBlitFramebuffer() is called with GL_DEPTH_BUFFER_BIT or
GL_STENCIL_BUFFER_BIT and the src/dst depth/stencil buffers are absent,
report an error.
This commit is contained in:
Brian Paul
2009-08-05 13:44:59 -06:00
parent f792137593
commit dcebe220f4
1 changed files with 6 additions and 2 deletions
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src/mesa/main/fbobject.c
+6 -2
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@@ -2038,7 +2038,9 @@ _mesa_BlitFramebufferEXT(GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1,
if (mask & GL_STENCIL_BUFFER_BIT) {
struct gl_renderbuffer *readRb = readFb->_StencilBuffer;
struct gl_renderbuffer *drawRb = drawFb->_StencilBuffer;
if (readRb->StencilBits != drawRb->StencilBits) {
if (!readRb ||
!drawRb ||
readRb->StencilBits != drawRb->StencilBits) {
_mesa_error(ctx, GL_INVALID_OPERATION,
"glBlitFramebufferEXT(stencil buffer size mismatch");
return;
@@ -2048,7 +2050,9 @@ _mesa_BlitFramebufferEXT(GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1,
if (mask & GL_DEPTH_BUFFER_BIT) {
struct gl_renderbuffer *readRb = readFb->_DepthBuffer;
struct gl_renderbuffer *drawRb = drawFb->_DepthBuffer;
if (readRb->DepthBits != drawRb->DepthBits) {
if (!readRb ||
!drawRb ||
readRb->DepthBits != drawRb->DepthBits) {
_mesa_error(ctx, GL_INVALID_OPERATION,
"glBlitFramebufferEXT(depth buffer size mismatch");
return;