radv: write the alpha channel of MRT0 when alpha coverage is enabled

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=109597
Cc: 18.3 19.0 <mesa-stable@lists.freedesktop.org>
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
This commit is contained in:
Samuel Pitoiset
2019-02-15 18:02:52 +01:00
parent 2cf5433b99
commit 0d8f096293

View File

@@ -511,6 +511,13 @@ radv_pipeline_compute_spi_color_formats(struct radv_pipeline *pipeline,
if (subpass->color_attachments[i].attachment == VK_ATTACHMENT_UNUSED) { if (subpass->color_attachments[i].attachment == VK_ATTACHMENT_UNUSED) {
cf = V_028714_SPI_SHADER_ZERO; cf = V_028714_SPI_SHADER_ZERO;
if (blend->need_src_alpha & (1 << i)) {
/* Write the alpha channel of MRT0 when alpha coverage is
* enabled because the depth attachment needs it.
*/
col_format |= V_028714_SPI_SHADER_32_ABGR;
}
} else { } else {
struct radv_render_pass_attachment *attachment = pass->attachments + subpass->color_attachments[i].attachment; struct radv_render_pass_attachment *attachment = pass->attachments + subpass->color_attachments[i].attachment;
bool blend_enable = bool blend_enable =
@@ -689,6 +696,7 @@ radv_pipeline_init_blend_state(struct radv_pipeline *pipeline,
if (vkms && vkms->alphaToCoverageEnable) { if (vkms && vkms->alphaToCoverageEnable) {
blend.db_alpha_to_mask |= S_028B70_ALPHA_TO_MASK_ENABLE(1); blend.db_alpha_to_mask |= S_028B70_ALPHA_TO_MASK_ENABLE(1);
blend.need_src_alpha |= 0x1;
} }
blend.cb_target_mask = 0; blend.cb_target_mask = 0;