f582327191
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
79 lines
2.0 KiB
C++
79 lines
2.0 KiB
C++
#pragma once
|
|
|
|
#include <mbgl/shaders/shader_source.hpp>
|
|
#include <mbgl/shaders/mtl/shader_program.hpp>
|
|
|
|
namespace mbgl {
|
|
namespace shaders {
|
|
|
|
struct alignas(16) ClipUBO {
|
|
/* 0 */ std::array<float, 4 * 4> matrix;
|
|
/* 64 */ std::uint32_t stencil_ref;
|
|
/* 68 */ float pad1;
|
|
/* 72 */ float pad2;
|
|
/* 76 */ float pad3;
|
|
/* 80 */
|
|
};
|
|
static_assert(sizeof(ClipUBO) == 5 * 16);
|
|
|
|
#define CLIPPING_MASK_SHADER_PRELUDE \
|
|
R"(
|
|
|
|
#include <metal_stdlib>
|
|
using namespace metal;
|
|
|
|
enum {
|
|
idClippingMaskUBO = idDrawableReservedVertexOnlyUBO,
|
|
clippingMaskUBOCount = drawableReservedUBOCount
|
|
};
|
|
|
|
struct alignas(16) ClipUBO {
|
|
/* 0 */ float4x4 matrix;
|
|
/* 64 */ uint32_t stencil_ref;
|
|
/* 68 */ float pad1;
|
|
/* 72 */ float pad2;
|
|
/* 76 */ float pad3;
|
|
/* 80 */
|
|
};
|
|
static_assert(sizeof(ClipUBO) == 5 * 16, "wrong size");
|
|
|
|
)"
|
|
|
|
template <>
|
|
struct ShaderSource<BuiltIn::ClippingMaskProgram, gfx::Backend::Type::Metal> {
|
|
static constexpr auto name = "ClippingMaskProgram";
|
|
static constexpr auto vertexMainFunction = "vertexMain";
|
|
static constexpr auto fragmentMainFunction = "fragmentMain";
|
|
|
|
static const std::array<AttributeInfo, 1> attributes;
|
|
static constexpr std::array<AttributeInfo, 0> instanceAttributes{};
|
|
static const std::array<TextureInfo, 0> textures;
|
|
|
|
static constexpr auto source = CLIPPING_MASK_SHADER_PRELUDE R"(
|
|
struct VertexStage {
|
|
short2 position [[attribute(clippingMaskUBOCount + 0)]];
|
|
};
|
|
|
|
struct FragmentStage {
|
|
float4 position [[position, invariant]];
|
|
};
|
|
|
|
struct FragmentResult {
|
|
// color output is only needed because we're using implicit stencil writes
|
|
half4 color [[color(0)]];
|
|
};
|
|
|
|
FragmentStage vertex vertexMain(VertexStage in [[stage_in]],
|
|
device const ClipUBO& clipUBO [[buffer(idClippingMaskUBO)]]) {
|
|
return { clipUBO.matrix * float4(float2(in.position.xy), 0, 1) };
|
|
}
|
|
|
|
half4 fragment fragmentMain(FragmentStage in [[stage_in]]) {
|
|
return half4(1.0);
|
|
}
|
|
)";
|
|
};
|
|
|
|
} // namespace shaders
|
|
} // namespace mbgl
|