86 lines
2.5 KiB
Plaintext
86 lines
2.5 KiB
Plaintext
// SPDX-FileCopyrightText: Copyright 2020 yuzu Emulator Project
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// SPDX-License-Identifier: GPL-2.0-or-later
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#version 430
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#ifdef VULKAN
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#extension GL_EXT_shader_16bit_storage : require
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#extension GL_EXT_shader_8bit_storage : require
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#define HAS_EXTENDED_TYPES 1
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#define BEGIN_PUSH_CONSTANTS layout(push_constant) uniform PushConstants {
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#define END_PUSH_CONSTANTS };
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#define UNIFORM(n)
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#define BINDING_INPUT_BUFFER 0
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#define BINDING_OUTPUT_IMAGE 1
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#else // ^^^ Vulkan ^^^ // vvv OpenGL vvv
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#extension GL_NV_gpu_shader5 : enable
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#ifdef GL_NV_gpu_shader5
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#define HAS_EXTENDED_TYPES 1
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#else
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#define HAS_EXTENDED_TYPES 0
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#endif
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#define BEGIN_PUSH_CONSTANTS
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#define END_PUSH_CONSTANTS
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#define UNIFORM(n) layout (location = n) uniform
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#define BINDING_INPUT_BUFFER 0
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#define BINDING_OUTPUT_IMAGE 0
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#endif
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BEGIN_PUSH_CONSTANTS
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UNIFORM(0) uvec2 origin;
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UNIFORM(1) ivec2 destination;
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UNIFORM(2) uint bytes_per_block;
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UNIFORM(3) uint pitch;
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END_PUSH_CONSTANTS
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#if HAS_EXTENDED_TYPES
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layout(binding = BINDING_INPUT_BUFFER, std430) readonly buffer InputBufferU8 { uint8_t u8data[]; };
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layout(binding = BINDING_INPUT_BUFFER, std430) readonly buffer InputBufferU16 { uint16_t u16data[]; };
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#endif
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layout(binding = BINDING_INPUT_BUFFER, std430) readonly buffer InputBufferU32 { uint u32data[]; };
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layout(binding = BINDING_INPUT_BUFFER, std430) readonly buffer InputBufferU64 { uvec2 u64data[]; };
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layout(binding = BINDING_INPUT_BUFFER, std430) readonly buffer InputBufferU128 { uvec4 u128data[]; };
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layout(binding = BINDING_OUTPUT_IMAGE) writeonly uniform uimage2D output_image;
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layout(local_size_x = 32, local_size_y = 32, local_size_z = 1) in;
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uvec4 ReadTexel(uint offset) {
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switch (bytes_per_block) {
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#if HAS_EXTENDED_TYPES
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case 1:
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return uvec4(u8data[offset], 0, 0, 0);
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case 2:
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return uvec4(u16data[offset / 2], 0, 0, 0);
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#else
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case 1:
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return uvec4(bitfieldExtract(u32data[offset / 4], int((offset * 8) & 24), 8), 0, 0, 0);
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case 2:
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return uvec4(bitfieldExtract(u32data[offset / 4], int((offset * 8) & 16), 16), 0, 0, 0);
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#endif
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case 4:
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return uvec4(u32data[offset / 4], 0, 0, 0);
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case 8:
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return uvec4(u64data[offset / 8], 0, 0);
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case 16:
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return u128data[offset / 16];
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}
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return uvec4(0);
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}
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void main() {
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uvec2 pos = gl_GlobalInvocationID.xy + origin;
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uint offset = 0;
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offset += pos.x * bytes_per_block;
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offset += pos.y * pitch;
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const uvec4 texel = ReadTexel(offset);
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const ivec2 coord = ivec2(gl_GlobalInvocationID.xy) + destination;
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imageStore(output_image, coord, texel);
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}
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