diff options
| author | Brian <brian.paul@tungstengraphics.com> | 2008-01-22 21:11:55 -0700 |
|---|---|---|
| committer | Brian <brian.paul@tungstengraphics.com> | 2008-01-22 21:11:55 -0700 |
| commit | 2a077500a84819d1e6ac62e84ded130aa655c5e9 (patch) | |
| tree | e16cbba8051acc5ee5fc4409e5697e11d0041989 /src/mesa/swrast/s_triangle.c | |
| parent | e1ae5b89fce51ce1138a5cbe93caa0e1fccf219f (diff) | |
Fix some issues with glDrawBuffer(GL_NONE), bug 14198
Set _ColorDrawBuffers[0] = NULL if no renderbuffers enabled.
Check that _ColorDrawBuffers[0] is non-null before dereferencing in a few places.
Diffstat (limited to 'src/mesa/swrast/s_triangle.c')
| -rw-r--r-- | src/mesa/swrast/s_triangle.c | 10 |
1 files changed, 4 insertions, 6 deletions
diff --git a/src/mesa/swrast/s_triangle.c b/src/mesa/swrast/s_triangle.c index 5036020b7c..59e15645f3 100644 --- a/src/mesa/swrast/s_triangle.c +++ b/src/mesa/swrast/s_triangle.c @@ -130,7 +130,7 @@ _swrast_culltriangle( GLcontext *ctx, #define T_SCALE theight #define SETUP_CODE \ - struct gl_renderbuffer *rb = ctx->DrawBuffer->_ColorDrawBuffers[0];\ + struct gl_renderbuffer *rb = ctx->DrawBuffer->_ColorDrawBuffers[0]; \ struct gl_texture_object *obj = ctx->Texture.Unit[0].Current2D; \ const GLint b = obj->BaseLevel; \ const GLfloat twidth = (GLfloat) obj->Image[0][b]->Width; \ @@ -139,8 +139,7 @@ _swrast_culltriangle( GLcontext *ctx, const GLchan *texture = (const GLchan *) obj->Image[0][b]->Data; \ const GLint smask = obj->Image[0][b]->Width - 1; \ const GLint tmask = obj->Image[0][b]->Height - 1; \ - if (!texture) { \ - /* this shouldn't happen */ \ + if (!rb || !texture) { \ return; \ } @@ -182,7 +181,7 @@ _swrast_culltriangle( GLcontext *ctx, #define T_SCALE theight #define SETUP_CODE \ - struct gl_renderbuffer *rb = ctx->DrawBuffer->_ColorDrawBuffers[0];\ + struct gl_renderbuffer *rb = ctx->DrawBuffer->_ColorDrawBuffers[0]; \ struct gl_texture_object *obj = ctx->Texture.Unit[0].Current2D; \ const GLint b = obj->BaseLevel; \ const GLfloat twidth = (GLfloat) obj->Image[0][b]->Width; \ @@ -191,8 +190,7 @@ _swrast_culltriangle( GLcontext *ctx, const GLchan *texture = (const GLchan *) obj->Image[0][b]->Data; \ const GLint smask = obj->Image[0][b]->Width - 1; \ const GLint tmask = obj->Image[0][b]->Height - 1; \ - if (!texture) { \ - /* this shouldn't happen */ \ + if (!rb || !texture) { \ return; \ } |