From b90f7f3ad324b1e4c39e334cdeb9556c3eb808ab Mon Sep 17 00:00:00 2001 From: Ian Romanick Date: Mon, 14 Dec 2009 16:16:26 -0800 Subject: i965: Use current draw buffer instead of drawable visual to get alpha bits Use the currently bound draw buffer instead of the visual from the drawable used to create the context. This cause problems generating mipmaps for an RGBA texture in an RGB context. This fixes the failure in piglit's glsl-lod-bias test reported in bug #25614. --- src/mesa/drivers/dri/i965/brw_cc.c | 4 ++-- src/mesa/drivers/dri/i965/brw_wm_surface_state.c | 2 +- 2 files changed, 3 insertions(+), 3 deletions(-) (limited to 'src') diff --git a/src/mesa/drivers/dri/i965/brw_cc.c b/src/mesa/drivers/dri/i965/brw_cc.c index ab301b9a3a0..bac1c3a49c3 100644 --- a/src/mesa/drivers/dri/i965/brw_cc.c +++ b/src/mesa/drivers/dri/i965/brw_cc.c @@ -158,9 +158,9 @@ cc_unit_populate_key(struct brw_context *brw, struct brw_cc_unit_key *key) /* If the renderbuffer is XRGB, we have to frob the blend function to * force the destination alpha to 1.0. This means replacing GL_DST_ALPHA - * with GL_ONE and GL_ONE_MINUS_DST_ALPAH with GL_ZERO. + * with GL_ONE and GL_ONE_MINUS_DST_ALPHA with GL_ZERO. */ - if (ctx->Visual.alphaBits == 0) { + if (ctx->DrawBuffer->Visual.alphaBits == 0) { key->blend_src_rgb = fix_xRGB_alpha(key->blend_src_rgb); key->blend_src_a = fix_xRGB_alpha(key->blend_src_a); key->blend_dst_rgb = fix_xRGB_alpha(key->blend_dst_rgb); diff --git a/src/mesa/drivers/dri/i965/brw_wm_surface_state.c b/src/mesa/drivers/dri/i965/brw_wm_surface_state.c index 3f9b1fbfdc6..8335e5a650e 100644 --- a/src/mesa/drivers/dri/i965/brw_wm_surface_state.c +++ b/src/mesa/drivers/dri/i965/brw_wm_surface_state.c @@ -581,7 +581,7 @@ brw_update_renderbuffer_surface(struct brw_context *brw, /* As mentioned above, disable writes to the alpha component when the * renderbuffer is XRGB. */ - if (ctx->Visual.alphaBits == 0) + if (ctx->DrawBuffer->Visual.alphaBits == 0) key.color_mask[3] = GL_FALSE; key.color_blend = (!ctx->Color._LogicOpEnabled && -- cgit v1.2.3