From 4d4f2daefabdc4ca1dd778a9265475c65ef52936 Mon Sep 17 00:00:00 2001 From: Eric Anholt Date: Fri, 2 Mar 2012 13:09:51 -0800 Subject: [PATCH] i915: Fix piglit fbo-nodepth-test on i830. This is a direct port of fc4fba52cf7e9616c70dd76b4d6bdba6582e157b from i915, and fixes GPU hangs when running piglit. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=41372 Reviewed-by: Eric Anholt NOTE: This is a candidate for release branches. --- src/mesa/drivers/dri/i915/i830_state.c | 8 +++++++- src/mesa/drivers/dri/i915/i830_vtbl.c | 3 +-- 2 files changed, 8 insertions(+), 3 deletions(-) diff --git a/src/mesa/drivers/dri/i915/i830_state.c b/src/mesa/drivers/dri/i915/i830_state.c index 3136ced..c6f1b03 100644 --- a/src/mesa/drivers/dri/i915/i830_state.c +++ b/src/mesa/drivers/dri/i915/i830_state.c @@ -436,7 +436,10 @@ i830DepthMask(struct gl_context * ctx, GLboolean flag) struct i830_context *i830 = i830_context(ctx); DBG("%s flag (%d)\n", __FUNCTION__, flag); - + + if (!ctx->DrawBuffer || !ctx->DrawBuffer->Visual.depthBits) + flag = false; + I830_STATECHANGE(i830, I830_UPLOAD_CTX); i830->state.Ctx[I830_CTXREG_ENABLES_2] &= ~ENABLE_DIS_DEPTH_WRITE_MASK; @@ -795,6 +798,9 @@ i830Enable(struct gl_context * ctx, GLenum cap, GLboolean state) I830_STATECHANGE(i830, I830_UPLOAD_CTX); i830->state.Ctx[I830_CTXREG_ENABLES_1] &= ~ENABLE_DIS_DEPTH_TEST_MASK; + if (!ctx->DrawBuffer || !ctx->DrawBuffer->Visual.depthBits) + state = false; + if (state) i830->state.Ctx[I830_CTXREG_ENABLES_1] |= ENABLE_DEPTH_TEST; else diff --git a/src/mesa/drivers/dri/i915/i830_vtbl.c b/src/mesa/drivers/dri/i915/i830_vtbl.c index 8b25596..8acbc87 100644 --- a/src/mesa/drivers/dri/i915/i830_vtbl.c +++ b/src/mesa/drivers/dri/i915/i830_vtbl.c @@ -826,8 +826,7 @@ i830_update_draw_buffer(struct intel_context *intel) /* * Update depth and stencil test state */ - ctx->Driver.Enable(ctx, GL_DEPTH_TEST, - (ctx->Depth.Test && fb->Visual.depthBits > 0)); + ctx->Driver.Enable(ctx, GL_DEPTH_TEST, ctx->Depth.Test); ctx->Driver.Enable(ctx, GL_STENCIL_TEST, (ctx->Stencil.Enabled && fb->Visual.stencilBits > 0)); -- 2.7.4