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nouveau: nv10: check NULL pointers

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This commit is contained in:
Patrice Mandin 2007-09-06 22:36:12 +02:00
parent 15a6bf9118
commit 249ca55555
1 changed files with 6 additions and 2 deletions
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8
src/mesa/drivers/dri/nouveau/nv10_state.c
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@ -253,8 +253,12 @@ static void nv10DepthRange(GLcontext *ctx, GLclampd nearval, GLclampd farval)
nouveauContextPtr nmesa = NOUVEAU_CONTEXT(ctx);
GLfloat depth_scale = 16777216.0;
if (ctx->DrawBuffer->_DepthBuffer->DepthBits == 16) {
depth_scale = 32768.0;
if (ctx->DrawBuffer) {
if (ctx->DrawBuffer->_DepthBuffer) {
if (ctx->DrawBuffer->_DepthBuffer->DepthBits == 16) {
depth_scale = 32768.0;
}
}
}
BEGIN_RING_CACHE(NvSub3D, NV10_TCL_PRIMITIVE_3D_DEPTH_RANGE_NEAR, 2);