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Mtl implementation cleanup thread dispatch

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Moved some of the boiler-plate code related to
thread group dispatching and configuration from
the osd shader source to the example shader source.
This commit is contained in:
David G Yu 2019-05-28 10:31:54 -07:00
parent cc6c9da070
commit 232d50c231
2 changed files with 18 additions and 18 deletions
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18
examples/mtlViewer/mtlViewer.metal
View File

@ -27,6 +27,24 @@
#include <metal_stdlib>
using namespace metal;
#if OSD_IS_ADAPTIVE
#if OSD_PATCH_GREGORY_BASIS
constant constexpr unsigned IndexLookupStride = 5;
#else
constant constexpr unsigned IndexLookupStride = 1;
#endif
#define PATCHES_PER_THREADGROUP ((THREADS_PER_THREADGROUP * CONTROL_POINTS_PER_THREAD) / CONTROL_POINTS_PER_PATCH)
#define REAL_THREADGROUP_DIVISOR (CONTROL_POINTS_PER_PATCH / CONTROL_POINTS_PER_THREAD)
static_assert(REAL_THREADGROUP_DIVISOR % 2 == 0, "REAL_THREADGROUP_DIVISOR must be a power of 2");
static_assert(!OSD_ENABLE_SCREENSPACE_TESSELLATION || !USE_PTVS_FACTORS, "USE_PTVS_FACTORS cannot be enabled if OSD_ENABLE_SCREENSPACE_TESSELLATION is enabled");
static_assert((OSD_ENABLE_SCREENSPACE_TESSELLATION && (OSD_FRACTIONAL_ODD_SPACING || OSD_FRACTIONAL_EVEN_SPACING)) || !OSD_ENABLE_SCREENSPACE_TESSELLATION, "OSD_ENABLE_SCREENSPACE_TESSELLATION requires OSD_FRACTIONAL_ODD_SPACING or OSD_FRACTIONAL_EVEN_SPACING");
#endif
#define SHADING_TYPE_MATERIAL 0
#define SHADING_TYPE_FACE_VARYING_COLOR 1
#define SHADING_TYPE_PATCH_TYPE 2

18
opensubdiv/osd/mtlPatchCommon.metal
View File

@ -42,24 +42,6 @@
#define OSD_NUM_ELEMENTS 3
#endif
#if OSD_IS_ADAPTIVE
#if OSD_PATCH_GREGORY_BASIS
constant constexpr unsigned IndexLookupStride = 5;
#else
constant constexpr unsigned IndexLookupStride = 1;
#endif
#define PATCHES_PER_THREADGROUP ((THREADS_PER_THREADGROUP * CONTROL_POINTS_PER_THREAD) / CONTROL_POINTS_PER_PATCH)
#define REAL_THREADGROUP_DIVISOR (CONTROL_POINTS_PER_PATCH / CONTROL_POINTS_PER_THREAD)
static_assert(REAL_THREADGROUP_DIVISOR % 2 == 0, "REAL_THREADGROUP_DIVISOR must be a power of 2");
static_assert(!OSD_ENABLE_SCREENSPACE_TESSELLATION || !USE_PTVS_FACTORS, "USE_PTVS_FACTORS cannot be enabled if OSD_ENABLE_SCREENSPACE_TESSELLATION is enabled");
static_assert((OSD_ENABLE_SCREENSPACE_TESSELLATION && (OSD_FRACTIONAL_ODD_SPACING || OSD_FRACTIONAL_EVEN_SPACING)) || !OSD_ENABLE_SCREENSPACE_TESSELLATION, "OSD_ENABLE_SCREENSPACE_TESSELLATION requires OSD_FRACTIONAL_ODD_SPACING or OSD_FRACTIONAL_EVEN_SPACING");
#endif
using namespace metal;
using OsdPatchParamBufferType = packed_int3;