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mesa: Always use the original mask to update stencil buffer

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in stencil_and_ztest_pixels. fix #12263
This commit is contained in:
Xiang, Haihao 2007-09-18 09:32:44 +08:00
parent c29886718a
commit e21d2c6ef3
1 changed files with 5 additions and 2 deletions
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7
src/mesa/swrast/s_stencil.c
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@ -923,6 +923,8 @@ stencil_and_ztest_pixels( GLcontext *ctx, SWspan *span, GLuint face )
ASSERT(rb->DataType == GL_UNSIGNED_BYTE);
_swrast_get_values(ctx, rb, n, x, y, stencil, sizeof(GLubyte));
_mesa_memcpy(origMask, mask, n * sizeof(GLubyte));
(void) do_stencil_test(ctx, face, n, stencil, mask);
if (ctx->Depth.Test == GL_FALSE) {
@ -930,11 +932,12 @@ stencil_and_ztest_pixels( GLcontext *ctx, SWspan *span, GLuint face )
n, stencil, mask);
}
else {
_mesa_memcpy(origMask, mask, n * sizeof(GLubyte));
GLubyte tmpMask[MAX_WIDTH];
_mesa_memcpy(tmpMask, mask, n * sizeof(GLubyte));
_swrast_depth_test_span(ctx, span);
compute_pass_fail_masks(n, origMask, mask, passMask, failMask);
compute_pass_fail_masks(n, tmpMask, mask, passMask, failMask);
if (ctx->Stencil.ZFailFunc[face] != GL_KEEP) {
apply_stencil_op(ctx, ctx->Stencil.ZFailFunc[face], face,