r600g/Cayman: Fix blending using destination alpha factor but non-alpha dest
Only compile tested, but should fix at least some piglit fbo-blending tests. NOTE: This is a candidate for the stable branches. Reviewed-by: Marek Olšák <maraeo@gmail.com>
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@ -1460,10 +1460,15 @@ void evergreen_init_color_surface(struct r600_context *rctx,
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S_028C74_NON_DISP_TILING_ORDER(non_disp_tiling) |
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S_028C74_FMASK_BANK_HEIGHT(fmask_bankh);
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if (rctx->chip_class == CAYMAN && rtex->resource.b.b.nr_samples > 1) {
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unsigned log_samples = util_logbase2(rtex->resource.b.b.nr_samples);
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color_attrib |= S_028C74_NUM_SAMPLES(log_samples) |
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S_028C74_NUM_FRAGMENTS(log_samples);
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if (rctx->chip_class == CAYMAN) {
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color_attrib |= S_028C74_FORCE_DST_ALPHA_1(desc->swizzle[3] ==
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UTIL_FORMAT_SWIZZLE_1);
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if (rtex->resource.b.b.nr_samples > 1) {
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unsigned log_samples = util_logbase2(rtex->resource.b.b.nr_samples);
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color_attrib |= S_028C74_NUM_SAMPLES(log_samples) |
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S_028C74_NUM_FRAGMENTS(log_samples);
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}
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}
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ntype = V_028C70_NUMBER_UNORM;
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