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anv: implement VK_EXT_depth_clip_enable

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A new extension allowing the user to explictly specify the clipping
behavior.

Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
This commit is contained in:
Lionel Landwerlin 2019-01-14 18:06:33 +00:00
parent fa4e103c32
commit f509213675
5 changed files with 23 additions and 4 deletions
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7
src/intel/vulkan/anv_device.c
View file

@ -943,6 +943,13 @@ void anv_GetPhysicalDeviceFeatures2(
break;
}
case VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_DEPTH_CLIP_ENABLE_FEATURES_EXT: {
VkPhysicalDeviceDepthClipEnableFeaturesEXT *features =
(VkPhysicalDeviceDepthClipEnableFeaturesEXT *)ext;
features->depthClipEnable = VK_TRUE;
break;
}
case VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_MULTIVIEW_FEATURES: {
VkPhysicalDeviceMultiviewFeatures *features =
(VkPhysicalDeviceMultiviewFeatures *)ext;

1
src/intel/vulkan/anv_extensions.py
View file

@ -122,6 +122,7 @@ EXTENSIONS = [
Extension('VK_EXT_calibrated_timestamps', 1, True),
Extension('VK_EXT_conditional_rendering', 1, 'device->info.gen >= 8 || device->info.is_haswell'),
Extension('VK_EXT_debug_report', 8, True),
Extension('VK_EXT_depth_clip_enable', 1, True),
Extension('VK_EXT_direct_mode_display', 1, 'VK_USE_PLATFORM_DISPLAY_KHR'),
Extension('VK_EXT_display_control', 1, 'VK_USE_PLATFORM_DISPLAY_KHR'),
Extension('VK_EXT_display_surface_counter', 1, 'VK_USE_PLATFORM_DISPLAY_KHR'),

10
src/intel/vulkan/anv_pipeline.c
View file

@ -1517,6 +1517,16 @@ anv_pipeline_init(struct anv_pipeline *pipeline,
pipeline->depth_clamp_enable = pCreateInfo->pRasterizationState &&
pCreateInfo->pRasterizationState->depthClampEnable;
/* Previously we enabled depth clipping when !depthClampEnable.
* DepthClipStateCreateInfo now makes depth clipping explicit so if the
* clipping info is available, use its enable value to determine clipping,
* otherwise fallback to the previous !depthClampEnable logic.
*/
const VkPipelineRasterizationDepthClipStateCreateInfoEXT *clip_info =
vk_find_struct_const(pCreateInfo->pRasterizationState->pNext,
PIPELINE_RASTERIZATION_DEPTH_CLIP_STATE_CREATE_INFO_EXT);
pipeline->depth_clip_enable = clip_info ? clip_info->depthClipEnable : !pipeline->depth_clamp_enable;
pipeline->sample_shading_enable = pCreateInfo->pMultisampleState &&
pCreateInfo->pMultisampleState->sampleShadingEnable;

1
src/intel/vulkan/anv_private.h
View file

@ -2624,6 +2624,7 @@ struct anv_pipeline {
bool writes_stencil;
bool stencil_test_enable;
bool depth_clamp_enable;
bool depth_clip_enable;
bool sample_shading_enable;
bool kill_pixel;

8
src/intel/vulkan/genX_pipeline.c
View file

@ -508,10 +508,10 @@ emit_rs_state(struct anv_pipeline *pipeline,
#if GEN_GEN >= 9
/* GEN9+ splits ViewportZClipTestEnable into near and far enable bits */
raster.ViewportZFarClipTestEnable = !pipeline->depth_clamp_enable;
raster.ViewportZNearClipTestEnable = !pipeline->depth_clamp_enable;
raster.ViewportZFarClipTestEnable = pipeline->depth_clip_enable;
raster.ViewportZNearClipTestEnable = pipeline->depth_clip_enable;
#elif GEN_GEN >= 8
raster.ViewportZClipTestEnable = !pipeline->depth_clamp_enable;
raster.ViewportZClipTestEnable = pipeline->depth_clip_enable;
#endif
raster.GlobalDepthOffsetEnableSolid = rs_info->depthBiasEnable;
@ -1113,7 +1113,7 @@ emit_3dstate_clip(struct anv_pipeline *pipeline,
#if GEN_GEN == 7
clip.FrontWinding = vk_to_gen_front_face[rs_info->frontFace];
clip.CullMode = vk_to_gen_cullmode[rs_info->cullMode];
clip.ViewportZClipTestEnable = !pipeline->depth_clamp_enable;
clip.ViewportZClipTestEnable = pipeline->depth_clip_enable;
clip.UserClipDistanceClipTestEnableBitmask = last->clip_distance_mask;
clip.UserClipDistanceCullTestEnableBitmask = last->cull_distance_mask;
#else