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cff04b4d3f
Introduces the majority of the logic associated with enabling multiplanar external textures. Removes most backend logic associated with external textures in favor of expanding them into their components in the frontend. Includes a basic e2e test demonstrating multiplanar YUV-to-RGB conversion. Bug: dawn:1082 Change-Id: Ib5c042e5639b1a8efe2954680abc346c8c6c76d7 Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/78248 Reviewed-by: Austin Eng <enga@chromium.org> Reviewed-by: Corentin Wallez <cwallez@chromium.org> Commit-Queue: Brandon1 Jones <brandon1.jones@intel.com>
69 lines
2.9 KiB
C++
69 lines
2.9 KiB
C++
// Copyright 2017 The Dawn Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#ifndef COMMON_CONSTANTS_H_
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#define COMMON_CONSTANTS_H_
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#include <cstdint>
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static constexpr uint32_t kMaxBindGroups = 4u;
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static constexpr uint8_t kMaxVertexAttributes = 16u;
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static constexpr uint8_t kMaxVertexBuffers = 8u;
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static constexpr uint32_t kMaxVertexBufferArrayStride = 2048u;
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static constexpr uint32_t kNumStages = 3;
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static constexpr uint8_t kMaxColorAttachments = 8u;
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static constexpr uint32_t kTextureBytesPerRowAlignment = 256u;
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static constexpr uint32_t kMaxInterStageShaderComponents = 60u;
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static constexpr uint32_t kMaxInterStageShaderVariables = kMaxInterStageShaderComponents / 4;
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// Per stage limits
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static constexpr uint32_t kMaxSampledTexturesPerShaderStage = 16;
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static constexpr uint32_t kMaxSamplersPerShaderStage = 16;
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static constexpr uint32_t kMaxStorageBuffersPerShaderStage = 8;
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static constexpr uint32_t kMaxStorageTexturesPerShaderStage = 4;
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static constexpr uint32_t kMaxUniformBuffersPerShaderStage = 12;
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// Per pipeline layout limits
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static constexpr uint32_t kMaxDynamicUniformBuffersPerPipelineLayout = 8u;
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static constexpr uint32_t kMaxDynamicStorageBuffersPerPipelineLayout = 4u;
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// Indirect command sizes
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static constexpr uint64_t kDispatchIndirectSize = 3 * sizeof(uint32_t);
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static constexpr uint64_t kDrawIndirectSize = 4 * sizeof(uint32_t);
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static constexpr uint64_t kDrawIndexedIndirectSize = 5 * sizeof(uint32_t);
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// Non spec defined constants.
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static constexpr float kLodMin = 0.0;
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static constexpr float kLodMax = 1000.0;
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// Offset alignment for CopyB2B. Strictly speaking this alignment is required only
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// on macOS, but we decide to do it on all platforms.
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static constexpr uint64_t kCopyBufferToBufferOffsetAlignment = 4u;
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// The maximum size of visibilityResultBuffer is 256KB on Metal, to fit the restriction, limit the
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// maximum size of query set to 64KB. The size of a query is 8-bytes, the maximum query count is 64
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// * 1024 / 8.
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static constexpr uint32_t kMaxQueryCount = 8192u;
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// An external texture occupies multiple binding slots. These are the per-external-texture bindings
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// needed.
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static constexpr uint8_t kSampledTexturesPerExternalTexture = 4u;
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static constexpr uint8_t kSamplersPerExternalTexture = 1u;
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static constexpr uint8_t kUniformsPerExternalTexture = 1u;
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// A spec defined constant but that doesn't have a name.
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static constexpr uint32_t kMaxBindingNumber = 65535;
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#endif // COMMON_CONSTANTS_H_
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