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lavapipe: fix setting colormasks when attachments get remapped

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this requires blend state updates

cc: mesa-stable

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/41407>
This commit is contained in:
Mike Blumenkrantz 2026-05-06 15:32:46 -04:00 • committed by Marge Bot
parent abc6f351b1
commit 2e9e8e9a36
1 changed files with 8 additions and 1 deletions
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9
src/gallium/frontends/lavapipe/lvp_execute.c
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@ -123,6 +123,7 @@ struct rendering_state {
struct pipe_grid_info trace_rays_info;
struct pipe_framebuffer_state framebuffer;
int fb_map[PIPE_MAX_COLOR_BUFS];
unsigned fb_max_cbufs;
bool fb_remapped;
struct pipe_blend_state blend_state;
@ -395,6 +396,7 @@ emit_fb_state(struct rendering_state *state)
fb.nr_cbufs = MAX2(fb.nr_cbufs, state->fb_map[i] + 1);
}
}
state->fb_max_cbufs = fb.nr_cbufs;
state->pctx->set_framebuffer_state(state->pctx, &fb);
} else {
state->pctx->set_framebuffer_state(state->pctx, &state->framebuffer);
@ -523,7 +525,7 @@ static void emit_state(struct rendering_state *state)
}
if (state->fb_remapped) {
struct pipe_blend_state blend = state->blend_state;
for (unsigned i = 0; i < state->framebuffer.nr_cbufs; i++) {
for (unsigned i = 0; i < state->fb_max_cbufs; i++) {
if (state->fb_map[i] < PIPE_MAX_COLOR_BUFS) {
blend.rt[state->fb_map[i]] = state->blend_state.rt[i];
}
@ -1909,6 +1911,7 @@ handle_begin_rendering(struct vk_cmd_queue_entry *cmd,
bool suspending = (info->flags & VK_RENDERING_SUSPENDING_BIT) == VK_RENDERING_SUSPENDING_BIT;
state->fb_remapped = false;
state->fb_max_cbufs = 0;
for (unsigned i = 0; i < PIPE_MAX_COLOR_BUFS; i++)
state->fb_map[i] = i;
@ -2007,6 +2010,7 @@ static void handle_end_rendering(struct vk_cmd_queue_entry *cmd,
/* ensure that textures are correctly framebuffer-referenced in llvmpipe */
if (state->fb_remapped) {
state->fb_remapped = false;
state->fb_max_cbufs = 0;
emit_fb_state(state);
}
@ -2062,6 +2066,7 @@ handle_rendering_attachment_locations(struct vk_cmd_queue_entry *cmd, struct ren
{
VkRenderingAttachmentLocationInfoKHR *set = cmd->u.set_rendering_attachment_locations.location_info;
state->fb_remapped = !!set->pColorAttachmentLocations;
state->fb_max_cbufs = 0;
memset(state->fb_map, PIPE_MAX_COLOR_BUFS, sizeof(state->fb_map));
assert(state->color_att_count == set->colorAttachmentCount);
if (set->pColorAttachmentLocations) {
@ -2071,6 +2076,8 @@ handle_rendering_attachment_locations(struct vk_cmd_queue_entry *cmd, struct ren
state->fb_map[i] = set->pColorAttachmentLocations[i];
}
}
/* force re-emitting colormasks */
state->blend_dirty = true;
emit_fb_state(state);
}