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lavapipe: implement VK_EXT_line_rasterization

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rectangular and strict lines aren't supported in this, and multisampling
must be disabled for correct line rasterization

Reviewed-by: Dave Airlie <airlied@redhat.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/11066>
This commit is contained in:
Mike Blumenkrantz
2021-07-02 10:37:47 -04:00
committed by Marge Bot
parent 73ad0bcfd8
commit 9fbf6b2abf
5 changed files with 83 additions and 2 deletions
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14
src/gallium/frontends/lavapipe/lvp_pipeline.c
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@@ -806,6 +806,20 @@ lvp_graphics_pipeline_init(struct lvp_pipeline *pipeline,
PIPELINE_RASTERIZATION_PROVOKING_VERTEX_STATE_CREATE_INFO_EXT);
pipeline->provoking_vertex_last = pv_state && pv_state->provokingVertexMode == VK_PROVOKING_VERTEX_MODE_LAST_VERTEX_EXT;
const VkPipelineRasterizationLineStateCreateInfoEXT *line_state =
vk_find_struct_const(pCreateInfo->pRasterizationState,
PIPELINE_RASTERIZATION_LINE_STATE_CREATE_INFO_EXT);
if (line_state) {
/* always draw bresenham if !smooth */
pipeline->line_stipple_enable = line_state->stippledLineEnable;
pipeline->line_smooth = line_state->lineRasterizationMode == VK_LINE_RASTERIZATION_MODE_RECTANGULAR_SMOOTH_EXT;
pipeline->disable_multisample = line_state->lineRasterizationMode != VK_LINE_RASTERIZATION_MODE_RECTANGULAR_EXT;
if (!dynamic_state_contains(pipeline->graphics_create_info.pDynamicState, VK_DYNAMIC_STATE_LINE_STIPPLE_EXT)) {
pipeline->line_stipple_factor = line_state->lineStippleFactor - 1;
pipeline->line_stipple_pattern = line_state->lineStipplePattern;
}
}
for (uint32_t i = 0; i < pCreateInfo->stageCount; i++) {
VK_FROM_HANDLE(vk_shader_module, module,