1/*
2 * Copyright 2021 Google LLC
3 *
4 * Use of this source code is governed by a BSD-style license that can be
5 * found in the LICENSE file.
6 */
7
8#ifndef skgpu_MtlGraphicsPipeline_DEFINED
9#define skgpu_MtlGraphicsPipeline_DEFINED
10
11#include "experimental/graphite/src/GraphicsPipeline.h"
12
13#include "include/ports/SkCFObject.h"
14#include <memory>
15
16#import <Metal/Metal.h>
17
18namespace skgpu {
19class GraphicsPipelineDesc;
20} // namespace skgpu
21
22namespace skgpu::mtl {
23class Gpu;
24
25class GraphicsPipeline final : public skgpu::GraphicsPipeline {
26public:
27    inline static constexpr unsigned int kUniformBufferIndex = 0;
28    inline static constexpr unsigned int kVertexBufferIndex = 1;
29    inline static constexpr unsigned int kInstanceBufferIndex = 2;
30
31    static sk_sp<GraphicsPipeline> Make(const Gpu*, const skgpu::GraphicsPipelineDesc&);
32    ~GraphicsPipeline() override {}
33
34    id<MTLRenderPipelineState> mtlPipelineState() const { return fPipelineState.get(); }
35    size_t vertexStride() const { return fVertexStride; }
36    size_t instanceStride() const { return fInstanceStride; }
37
38private:
39    GraphicsPipeline(sk_cfp<id<MTLRenderPipelineState>> pso,
40                     size_t vertexStride,
41                     size_t instanceStride)
42        : fPipelineState(std::move(pso))
43        , fVertexStride(vertexStride)
44        , fInstanceStride(instanceStride) {}
45
46    sk_cfp<id<MTLRenderPipelineState>> fPipelineState;
47    size_t fVertexStride = 0;
48    size_t fInstanceStride = 0;
49};
50
51} // namespace skgpu::mtl
52
53#endif // skgpu_MtlGraphicsPipeline_DEFINED
54