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99ceb03a1c
This formats all copyright comments according to SPDX formatting guidelines. Additionally, this resolves the remaining GPLv2 only licensed files by relicensing them to GPLv2.0-or-later.
67 lines
1.6 KiB
GLSL
67 lines
1.6 KiB
GLSL
// SPDX-FileCopyrightText: Copyright 2021 yuzu Emulator Project
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// SPDX-License-Identifier: GPL-2.0-or-later
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#version 460 core
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#ifdef VULKAN
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#define BINDING_COLOR_TEXTURE 1
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#else // ^^^ Vulkan ^^^ // vvv OpenGL vvv
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#define BINDING_COLOR_TEXTURE 0
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#endif
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layout (location = 0) in vec2 frag_tex_coord;
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layout (location = 0) out vec4 color;
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layout (binding = BINDING_COLOR_TEXTURE) uniform sampler2D color_texture;
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vec4 cubic(float v) {
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vec4 n = vec4(1.0, 2.0, 3.0, 4.0) - v;
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vec4 s = n * n * n;
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float x = s.x;
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float y = s.y - 4.0 * s.x;
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float z = s.z - 4.0 * s.y + 6.0 * s.x;
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float w = 6.0 - x - y - z;
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return vec4(x, y, z, w) * (1.0 / 6.0);
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}
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vec4 textureBicubic( sampler2D textureSampler, vec2 texCoords ) {
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vec2 texSize = textureSize(textureSampler, 0);
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vec2 invTexSize = 1.0 / texSize;
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texCoords = texCoords * texSize - 0.5;
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vec2 fxy = fract(texCoords);
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texCoords -= fxy;
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vec4 xcubic = cubic(fxy.x);
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vec4 ycubic = cubic(fxy.y);
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vec4 c = texCoords.xxyy + vec2(-0.5, +1.5).xyxy;
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vec4 s = vec4(xcubic.xz + xcubic.yw, ycubic.xz + ycubic.yw);
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vec4 offset = c + vec4(xcubic.yw, ycubic.yw) / s;
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offset *= invTexSize.xxyy;
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vec4 sample0 = texture(textureSampler, offset.xz);
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vec4 sample1 = texture(textureSampler, offset.yz);
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vec4 sample2 = texture(textureSampler, offset.xw);
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vec4 sample3 = texture(textureSampler, offset.yw);
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float sx = s.x / (s.x + s.y);
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float sy = s.z / (s.z + s.w);
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return mix(mix(sample3, sample2, sx), mix(sample1, sample0, sx), sy);
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}
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void main() {
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color = vec4(textureBicubic(color_texture, frag_tex_coord).rgb, 1.0f);
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}
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