/* OK */
}
else if (ctx->Extensions.EXT_packed_depth_stencil &&
+ ctx->Extensions.ARB_depth_texture &&
texImage->TexFormat->BaseFormat == GL_DEPTH_STENCIL_EXT) {
/* OK */
}
}
}
else {
- /* no such thing as stencil textures */
- att_incomplete("illegal stencil texture");
- att->Complete = GL_FALSE;
- return;
+ ASSERT(format == GL_STENCIL);
+ ASSERT(att->Renderbuffer->StencilBits);
+ if (ctx->Extensions.EXT_packed_depth_stencil &&
+ ctx->Extensions.ARB_depth_texture &&
+ att->Renderbuffer->_BaseFormat == GL_DEPTH_STENCIL_EXT) {
+ /* OK */
+ }
+ else {
+ /* no such thing as stencil-only textures */
+ att_incomplete("illegal stencil texture");
+ att->Complete = GL_FALSE;
+ return;
+ }
}
}
else if (att->Type == GL_RENDERBUFFER_EXT) {
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;
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;