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host_shaders: Add Vulkan assembler compute shaders

This commit is contained in:
ReinUsesLisp 2020-12-30 02:03:50 -03:00
parent 87ff58b1d7
commit 21b18057f7
4 changed files with 96 additions and 0 deletions

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@ -12,6 +12,9 @@ set(SHADER_FILES
vulkan_blit_depth_stencil.frag
vulkan_present.frag
vulkan_present.vert
vulkan_quad_array.comp
vulkan_quad_indexed.comp
vulkan_uint8.comp
)
find_program(GLSLANGVALIDATOR "glslangValidator" REQUIRED)

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@ -0,0 +1,28 @@
// Copyright 2019 yuzu Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#version 460 core
layout (local_size_x = 1024) in;
layout (std430, set = 0, binding = 0) buffer OutputBuffer {
uint output_indexes[];
};
layout (push_constant) uniform PushConstants {
uint first;
};
void main() {
uint primitive = gl_GlobalInvocationID.x;
if (primitive * 6 >= output_indexes.length()) {
return;
}
const uint quad_map[6] = uint[](0, 1, 2, 0, 2, 3);
for (uint vertex = 0; vertex < 6; ++vertex) {
uint index = first + primitive * 4 + quad_map[vertex];
output_indexes[primitive * 6 + vertex] = index;
}
}

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@ -0,0 +1,41 @@
// Copyright 2020 yuzu Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#version 460 core
layout (local_size_x = 1024) in;
layout (std430, set = 0, binding = 0) readonly buffer InputBuffer {
uint input_indexes[];
};
layout (std430, set = 0, binding = 1) writeonly buffer OutputBuffer {
uint output_indexes[];
};
layout (push_constant) uniform PushConstants {
uint base_vertex;
int index_shift; // 0: uint8, 1: uint16, 2: uint32
};
void main() {
int primitive = int(gl_GlobalInvocationID.x);
if (primitive * 6 >= output_indexes.length()) {
return;
}
int index_size = 8 << index_shift;
int flipped_shift = 2 - index_shift;
int mask = (1 << flipped_shift) - 1;
const int quad_swizzle[6] = int[](0, 1, 2, 0, 2, 3);
for (uint vertex = 0; vertex < 6; ++vertex) {
int offset = primitive * 4 + quad_swizzle[vertex];
int int_offset = offset >> flipped_shift;
int bit_offset = (offset & mask) * index_size;
uint packed_input = input_indexes[int_offset];
uint index = bitfieldExtract(packed_input, bit_offset, index_size);
output_indexes[primitive * 6 + vertex] = index + base_vertex;
}
}

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@ -0,0 +1,24 @@
// Copyright 2019 yuzu Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#version 460 core
#extension GL_EXT_shader_16bit_storage : require
#extension GL_EXT_shader_8bit_storage : require
layout (local_size_x = 1024) in;
layout (std430, set = 0, binding = 0) readonly buffer InputBuffer {
uint8_t input_indexes[];
};
layout (std430, set = 0, binding = 1) writeonly buffer OutputBuffer {
uint16_t output_indexes[];
};
void main() {
uint id = gl_GlobalInvocationID.x;
if (id < input_indexes.length()) {
output_indexes[id] = uint16_t(input_indexes[id]);
}
}