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swiftshader
Commit 8d7f233a by Chris Forbes
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Refactor float sampling path to be more regular

Change-Id: I8e68ecda72c9ac077c81e7a03eb53ec3c43e7812 Reviewed-on: https://swiftshader-review.googlesource.com/c/SwiftShader/+/30433Tested-by: 's avatarChris Forbes <chrisforbes@google.com> Presubmit-Ready: Chris Forbes <chrisforbes@google.com> Reviewed-by: 's avatarNicolas Capens <nicolascapens@google.com> Reviewed-by: 's avatarAlexis Hétu <sugoi@google.com> Kokoro-Presubmit: kokoro <noreply+kokoro@google.com>
parent 788ea9f7
Showing with 80 additions and 88 deletions
src/Pipeline/SamplerCore.cpp
......@@ -1835,6 +1835,7 @@ namespace sw
Vector4f c;
UInt index[4];
UInt4 t0, t1, t2, t3;
computeIndices(index, uuuu, vvvv, wwww, mipmap, function);
if(hasFloatTexture() || has32bitIntegerTextureComponents())
......@@ -1844,95 +1845,86 @@ namespace sw
int f2 = state.textureType == TEXTURE_CUBE ? 2 : 0;
int f3 = state.textureType == TEXTURE_CUBE ? 3 : 0;
if (has16bitTextureComponents())
switch (state.textureFormat)
{
switch (textureComponentCount())
{
case 4:
{
UInt4 t0 = Int4(*Pointer<UShort4>(buffer[f0] + index[0] * 8));
UInt4 t1 = Int4(*Pointer<UShort4>(buffer[f1] + index[1] * 8));
UInt4 t2 = Int4(*Pointer<UShort4>(buffer[f2] + index[2] * 8));
UInt4 t3 = Int4(*Pointer<UShort4>(buffer[f3] + index[3] * 8));
c.x = As<Float4>(halfToFloatBits(t0));
c.y = As<Float4>(halfToFloatBits(t1));
c.z = As<Float4>(halfToFloatBits(t2));
c.w = As<Float4>(halfToFloatBits(t3));
transpose4x4(c.x, c.y, c.z, c.w);
break;
}
case 2:
{
UInt4 t0 = Int4(*Pointer<UShort4>(buffer[f0] + index[0] * 4));
UInt4 t1 = Int4(*Pointer<UShort4>(buffer[f1] + index[1] * 4));
UInt4 t2 = Int4(*Pointer<UShort4>(buffer[f2] + index[2] * 4));
UInt4 t3 = Int4(*Pointer<UShort4>(buffer[f3] + index[3] * 4));
// FIXME: shuffles
c.x = As<Float4>(halfToFloatBits(t0));
c.y = As<Float4>(halfToFloatBits(t1));
c.z = As<Float4>(halfToFloatBits(t2));
c.w = As<Float4>(halfToFloatBits(t3));
transpose4x4(c.x, c.y, c.z, c.w);
break;
}
case 1:
{
UInt4 t0 = Int4(*Pointer<UShort4>(buffer[f0] + index[0] * 2));
UInt4 t1 = Int4(*Pointer<UShort4>(buffer[f1] + index[1] * 2));
UInt4 t2 = Int4(*Pointer<UShort4>(buffer[f2] + index[2] * 2));
UInt4 t3 = Int4(*Pointer<UShort4>(buffer[f3] + index[3] * 2));
c.x.x = Extract(As<Float4>(halfToFloatBits(t0)), 0);
c.x.y = Extract(As<Float4>(halfToFloatBits(t1)), 0);
c.x.z = Extract(As<Float4>(halfToFloatBits(t2)), 0);
c.x.w = Extract(As<Float4>(halfToFloatBits(t3)), 0);
break;
}
default:
UNIMPLEMENTED("fp16 sampling %d components", textureComponentCount());
}
}
else
{
// Read texels
switch (textureComponentCount())
{
case 4:
c.x = *Pointer<Float4>(buffer[f0] + index[0] * 16, 16);
c.y = *Pointer<Float4>(buffer[f1] + index[1] * 16, 16);
c.z = *Pointer<Float4>(buffer[f2] + index[2] * 16, 16);
c.w = *Pointer<Float4>(buffer[f3] + index[3] * 16, 16);
transpose4x4(c.x, c.y, c.z, c.w);
break;
case 3:
c.x = *Pointer<Float4>(buffer[f0] + index[0] * 16, 16);
c.y = *Pointer<Float4>(buffer[f1] + index[1] * 16, 16);
c.z = *Pointer<Float4>(buffer[f2] + index[2] * 16, 16);
c.w = *Pointer<Float4>(buffer[f3] + index[3] * 16, 16);
transpose4x3(c.x, c.y, c.z, c.w);
break;
case 2:
// FIXME: Optimal shuffling?
c.x.xy = *Pointer<Float4>(buffer[f0] + index[0] * 8);
c.x.zw = *Pointer<Float4>(buffer[f1] + index[1] * 8 - 8);
c.z.xy = *Pointer<Float4>(buffer[f2] + index[2] * 8);
c.z.zw = *Pointer<Float4>(buffer[f3] + index[3] * 8 - 8);
c.y = c.x;
c.x = Float4(c.x.xz, c.z.xz);
c.y = Float4(c.y.yw, c.z.yw);
break;
case 1:
// FIXME: Optimal shuffling?
c.x.x = *Pointer<Float>(buffer[f0] + index[0] * 4);
c.x.y = *Pointer<Float>(buffer[f1] + index[1] * 4);
c.x.z = *Pointer<Float>(buffer[f2] + index[2] * 4);
c.x.w = *Pointer<Float>(buffer[f3] + index[3] * 4);
break;
default:
ASSERT(false);
}
case VK_FORMAT_R16_SFLOAT:
t0 = Int4(*Pointer<UShort4>(buffer[f0] + index[0] * 2));
t1 = Int4(*Pointer<UShort4>(buffer[f1] + index[1] * 2));
t2 = Int4(*Pointer<UShort4>(buffer[f2] + index[2] * 2));
t3 = Int4(*Pointer<UShort4>(buffer[f3] + index[3] * 2));
c.x.x = Extract(As<Float4>(halfToFloatBits(t0)), 0);
c.x.y = Extract(As<Float4>(halfToFloatBits(t1)), 0);
c.x.z = Extract(As<Float4>(halfToFloatBits(t2)), 0);
c.x.w = Extract(As<Float4>(halfToFloatBits(t3)), 0);
break;
case VK_FORMAT_R16G16_SFLOAT:
t0 = Int4(*Pointer<UShort4>(buffer[f0] + index[0] * 4));
t1 = Int4(*Pointer<UShort4>(buffer[f1] + index[1] * 4));
t2 = Int4(*Pointer<UShort4>(buffer[f2] + index[2] * 4));
t3 = Int4(*Pointer<UShort4>(buffer[f3] + index[3] * 4));
// FIXME: shuffles
c.x = As<Float4>(halfToFloatBits(t0));
c.y = As<Float4>(halfToFloatBits(t1));
c.z = As<Float4>(halfToFloatBits(t2));
c.w = As<Float4>(halfToFloatBits(t3));
transpose4x4(c.x, c.y, c.z, c.w);
break;
case VK_FORMAT_R16G16B16A16_SFLOAT:
t0 = Int4(*Pointer<UShort4>(buffer[f0] + index[0] * 8));
t1 = Int4(*Pointer<UShort4>(buffer[f1] + index[1] * 8));
t2 = Int4(*Pointer<UShort4>(buffer[f2] + index[2] * 8));
t3 = Int4(*Pointer<UShort4>(buffer[f3] + index[3] * 8));
c.x = As<Float4>(halfToFloatBits(t0));
c.y = As<Float4>(halfToFloatBits(t1));
c.z = As<Float4>(halfToFloatBits(t2));
c.w = As<Float4>(halfToFloatBits(t3));
transpose4x4(c.x, c.y, c.z, c.w);
break;
case VK_FORMAT_R32_SFLOAT:
case VK_FORMAT_R32_SINT:
case VK_FORMAT_R32_UINT:
// FIXME: Optimal shuffling?
c.x.x = *Pointer<Float>(buffer[f0] + index[0] * 4);
c.x.y = *Pointer<Float>(buffer[f1] + index[1] * 4);
c.x.z = *Pointer<Float>(buffer[f2] + index[2] * 4);
c.x.w = *Pointer<Float>(buffer[f3] + index[3] * 4);
break;
case VK_FORMAT_R32G32_SFLOAT:
case VK_FORMAT_R32G32_SINT:
case VK_FORMAT_R32G32_UINT:
// FIXME: Optimal shuffling?
c.x.xy = *Pointer<Float4>(buffer[f0] + index[0] * 8);
c.x.zw = *Pointer<Float4>(buffer[f1] + index[1] * 8 - 8);
c.z.xy = *Pointer<Float4>(buffer[f2] + index[2] * 8);
c.z.zw = *Pointer<Float4>(buffer[f3] + index[3] * 8 - 8);
c.y = c.x;
c.x = Float4(c.x.xz, c.z.xz);
c.y = Float4(c.y.yw, c.z.yw);
break;
case VK_FORMAT_R32G32B32_SFLOAT:
case VK_FORMAT_R32G32B32_SINT:
case VK_FORMAT_R32G32B32_UINT:
c.x = *Pointer<Float4>(buffer[f0] + index[0] * 16, 16);
c.y = *Pointer<Float4>(buffer[f1] + index[1] * 16, 16);
c.z = *Pointer<Float4>(buffer[f2] + index[2] * 16, 16);
c.w = *Pointer<Float4>(buffer[f3] + index[3] * 16, 16);
transpose4x3(c.x, c.y, c.z, c.w);
break;
case VK_FORMAT_R32G32B32A32_SFLOAT:
case VK_FORMAT_R32G32B32A32_SINT:
case VK_FORMAT_R32G32B32A32_UINT:
c.x = *Pointer<Float4>(buffer[f0] + index[0] * 16, 16);
c.y = *Pointer<Float4>(buffer[f1] + index[1] * 16, 16);
c.z = *Pointer<Float4>(buffer[f2] + index[2] * 16, 16);
c.w = *Pointer<Float4>(buffer[f3] + index[3] * 16, 16);
transpose4x4(c.x, c.y, c.z, c.w);
break;
default:
UNIMPLEMENTED("Format %d", VkFormat(state.textureFormat));
}
if(state.compare != COMPARE_BYPASS)
......
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