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panvk: Emit viewport when state is NULL

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When rasterizerDiscardEnable is active, it is allowed to have viewport
and scissor disabled.

In case we don't have any viewport defined we now define an empty one.

This is required for
"dEQP-VK.api.pipeline.pipeline_invalid_pointers_unused_structs.graphics"
as it never set any viewports and cause fault on IDVS jobs as a result.

Signed-off-by: Mary Guillemard <mary.guillemard@collabora.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/30293>
This commit is contained in:
Mary Guillemard 2024-07-02 14:02:41 +02:00 • committed by Marge Bot
parent cec45cac84
commit 0329070233
1 changed files with 11 additions and 2 deletions
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13
src/panfrost/vulkan/jm/panvk_vX_cmd_draw.c
View file

@ -778,11 +778,20 @@ static void
panvk_draw_prepare_viewport(struct panvk_cmd_buffer *cmdbuf,
struct panvk_draw_info *draw)
{
if (is_dirty(cmdbuf, VP_VIEWPORTS) || is_dirty(cmdbuf, VP_SCISSORS)) {
/* When rasterizerDiscardEnable is active, it is allowed to have viewport and
* scissor disabled.
* As a result, we define an empty one.
*/
if (!cmdbuf->state.gfx.vpd || is_dirty(cmdbuf, VP_VIEWPORTS) ||
is_dirty(cmdbuf, VP_SCISSORS)) {
struct panfrost_ptr vp =
pan_pool_alloc_desc(&cmdbuf->desc_pool.base, VIEWPORT);
panvk_emit_viewport(&cmdbuf->vk.dynamic_graphics_state.vp, vp.cpu);
const struct vk_viewport_state *vps =
&cmdbuf->vk.dynamic_graphics_state.vp;
if (vps->viewport_count > 0)
panvk_emit_viewport(vps, vp.cpu);
cmdbuf->state.gfx.vpd = vp.gpu;
}