diff options
| author | Eric Anholt <[email protected]> | 2011-07-12 10:48:40 -0700 |
|---|---|---|
| committer | Eric Anholt <[email protected]> | 2011-07-18 11:26:33 -0700 |
| commit | fc4fba52cf7e9616c70dd76b4d6bdba6582e157b (patch) | |
| tree | 94793fe750c01dd4ad9571eec4fbfd1d6986857f /src/mesa/drivers/dri/i915/i915_state.c | |
| parent | 4c47fce92e381cb182b51ce6d0727c0a1365e8b0 (diff) | |
i915: Disable the depth test whenever we don't have a depth buffer.
We were disabling it once at the moment we changed draw buffers, but
later enabling of depth test could turn it back on. Fixes
fbo-nodepth-test.
Note that ctx->DrawBuffer has to be checked because during context
create we get called while it's still unset. However, we know we'll
get an intel_draw_buffer() after that, so it's safe to make a silly
choice at this point.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=30080
Diffstat (limited to 'src/mesa/drivers/dri/i915/i915_state.c')
| -rw-r--r-- | src/mesa/drivers/dri/i915/i915_state.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/i915/i915_state.c b/src/mesa/drivers/dri/i915/i915_state.c index 99212ad4fd1..73dda65261e 100644 --- a/src/mesa/drivers/dri/i915/i915_state.c +++ b/src/mesa/drivers/dri/i915/i915_state.c @@ -375,6 +375,9 @@ i915DepthMask(struct gl_context * ctx, GLboolean flag) DBG("%s flag (%d)\n", __FUNCTION__, flag); + if (!ctx->DrawBuffer || !ctx->DrawBuffer->Visual.depthBits) + flag = false; + dw = i915->state.Ctx[I915_CTXREG_LIS6]; if (flag && ctx->Depth.Test) dw |= S6_DEPTH_WRITE_ENABLE; @@ -797,6 +800,10 @@ i915Enable(struct gl_context * ctx, GLenum cap, GLboolean state) case GL_DEPTH_TEST: dw = i915->state.Ctx[I915_CTXREG_LIS6]; + + if (!ctx->DrawBuffer || !ctx->DrawBuffer->Visual.depthBits) + state = false; + if (state) dw |= S6_DEPTH_TEST_ENABLE; else |