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zink: use a maybe more accurate wild guess for pcp-less gpl

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this is only reachable with an env var, so being wrong is still okay,
but maybe be right slightly more often

Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/17955>
This commit is contained in:
Mike Blumenkrantz
2022-08-09 08:51:18 -04:00
committed by Marge Bot
parent 85165a246c
commit 62b3e75e4c
1 changed files with 6 additions and 1 deletions
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src/gallium/drivers/zink/zink_pipeline.c
+6 -1
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@@ -756,7 +756,12 @@ zink_create_gfx_pipeline_library(struct zink_screen *screen, struct zink_gfx_pro
VkPipelineTessellationDomainOriginStateCreateInfo tdci = {0};
if (prog->shaders[MESA_SHADER_TESS_CTRL] && prog->shaders[MESA_SHADER_TESS_EVAL]) {
tci.sType = VK_STRUCTURE_TYPE_PIPELINE_TESSELLATION_STATE_CREATE_INFO;
tci.patchControlPoints = 3; //this is a wild guess; pray for extendedDynamicState2PatchControlPoints
//this is a wild guess; pray for extendedDynamicState2PatchControlPoints
if (!screen->info.dynamic_state2_feats.extendedDynamicState2PatchControlPoints) {
static bool warned = false;
warn_missing_feature(warned, "extendedDynamicState2PatchControlPoints");
}
tci.patchControlPoints = prog->shaders[MESA_SHADER_TESS_EVAL]->nir->info.tess._primitive_mode == TESS_PRIMITIVE_ISOLINES ? 2 : 3;
pci.pTessellationState = &tci;
tci.pNext = &tdci;
tdci.sType = VK_STRUCTURE_TYPE_PIPELINE_TESSELLATION_DOMAIN_ORIGIN_STATE_CREATE_INFO;