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// Copyright 2020 The Dawn & Tint Authors
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice, this
// list of conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
// and/or other materials provided with the distribution.
//
// 3. Neither the name of the copyright holder nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
// CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#include "dawn/native/Subresource.h"
#include "absl/numeric/bits.h"
#include "dawn/common/Assert.h"
#include "dawn/native/Format.h"
namespace dawn::native {
Aspect ConvertSingleAspect(const Format& format, wgpu::TextureAspect aspect) {
Aspect aspectMask = ConvertAspect(format, aspect);
DAWN_ASSERT(HasOneBit(aspectMask));
return aspectMask;
}
Aspect ConvertAspect(const Format& format, wgpu::TextureAspect aspect) {
Aspect aspectMask = SelectFormatAspects(format, aspect);
DAWN_ASSERT(aspectMask != Aspect::None);
return aspectMask;
}
Aspect ConvertViewAspect(const Format& format, wgpu::TextureAspect aspect) {
// Color view |format| must be treated as the same plane |aspect|.
if (format.aspects == Aspect::Color) {
switch (aspect) {
case wgpu::TextureAspect::Plane0Only:
return Aspect::Plane0;
case wgpu::TextureAspect::Plane1Only:
return Aspect::Plane1;
case wgpu::TextureAspect::Plane2Only:
return Aspect::Plane2;
default:
break;
}
}
return ConvertAspect(format, aspect);
}
Aspect GetPlaneAspect(const Format& format, uint32_t planeIndex) {
wgpu::TextureAspect textureAspect;
switch (planeIndex) {
case 0:
textureAspect = wgpu::TextureAspect::Plane0Only;
break;
case 1:
textureAspect = wgpu::TextureAspect::Plane1Only;
break;
case 2:
textureAspect = wgpu::TextureAspect::Plane2Only;
break;
default:
DAWN_UNREACHABLE();
}
return ConvertAspect(format, textureAspect);
}
Aspect SelectFormatAspects(const Format& format, wgpu::TextureAspect aspect) {
switch (aspect) {
case wgpu::TextureAspect::All:
return format.aspects;
case wgpu::TextureAspect::DepthOnly:
return format.aspects & Aspect::Depth;
case wgpu::TextureAspect::StencilOnly:
return format.aspects & Aspect::Stencil;
case wgpu::TextureAspect::Plane0Only:
return format.aspects & Aspect::Plane0;
case wgpu::TextureAspect::Plane1Only:
return format.aspects & Aspect::Plane1;
case wgpu::TextureAspect::Plane2Only:
return format.aspects & Aspect::Plane2;
}
DAWN_UNREACHABLE();
}
uint8_t GetAspectIndex(Aspect aspect) {
DAWN_ASSERT(HasOneBit(aspect));
switch (aspect) {
case Aspect::Color:
case Aspect::Depth:
case Aspect::Plane0:
case Aspect::CombinedDepthStencil:
return 0;
case Aspect::Plane1:
case Aspect::Stencil:
return 1;
case Aspect::Plane2:
return 2;
default:
DAWN_UNREACHABLE();
}
}
uint8_t GetAspectCount(Aspect aspects) {
if (aspects == Aspect::Stencil) {
// Fake a the existence of a depth aspect so that the stencil data stays at index 1.
DAWN_ASSERT(GetAspectIndex(Aspect::Stencil) == 1);
return 2;
}
return absl::popcount(static_cast<uint8_t>(aspects));
}
SubresourceRange::SubresourceRange(Aspect aspects,
FirstAndCountRange<uint32_t> arrayLayerParam,
FirstAndCountRange<uint32_t> mipLevelParams)
: aspects(aspects),
baseArrayLayer(arrayLayerParam.first),
layerCount(arrayLayerParam.count),
baseMipLevel(mipLevelParams.first),
levelCount(mipLevelParams.count) {}
SubresourceRange::SubresourceRange()
: aspects(Aspect::None), baseArrayLayer(0), layerCount(0), baseMipLevel(0), levelCount(0) {}
// static
SubresourceRange SubresourceRange::SingleMipAndLayer(uint32_t baseMipLevel,
uint32_t baseArrayLayer,
Aspect aspects) {
return {aspects, {baseArrayLayer, 1}, {baseMipLevel, 1}};
}
// static
SubresourceRange SubresourceRange::MakeSingle(Aspect aspect,
uint32_t baseArrayLayer,
uint32_t baseMipLevel) {
DAWN_ASSERT(HasOneBit(aspect));
return {aspect, {baseArrayLayer, 1}, {baseMipLevel, 1}};
}
// static
SubresourceRange SubresourceRange::MakeFull(Aspect aspects,
uint32_t layerCount,
uint32_t levelCount) {
return {aspects, {0, layerCount}, {0, levelCount}};
}
} // namespace dawn::native