64 lines
1.6 KiB
Plaintext
64 lines
1.6 KiB
Plaintext
; ftpd is a server implementation based on the following:
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; - RFC 959 (https://tools.ietf.org/html/rfc959)
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; - RFC 3659 (https://tools.ietf.org/html/rfc3659)
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; - suggested implementation details from https://cr.yp.to/ftp/filesystem.html
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;
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; Copyright (C) 2020 Michael Theall
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;
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; This program is free software: you can redistribute it and/or modify
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; it under the terms of the GNU General Public License as published by
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; the Free Software Foundation, either version 3 of the License, or
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; (at your option) any later version.
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;
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; This program is distributed in the hope that it will be useful,
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; but WITHOUT ANY WARRANTY; without even the implied warranty of
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; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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; GNU General Public License for more details.
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;
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; You should have received a copy of the GNU General Public License
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; along with this program. If not, see <https://www.gnu.org/licenses/>.
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; ImGui PICA200 vertex shader
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; uniforms
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; Projection matrix
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.fvec proj[4]
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; constants
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; [1.0, 0.0, 1.0/255.0, 0.0]
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.constf constants(1.0, 0.0, 0.00392156862745, 0.0)
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; outputs
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.out outPos position
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.out outUv texcoord0
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.out outColor color
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; inputs (defined as aliases for convenience)
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.alias inPos v0
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.alias inUv v1
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.alias inColor v2
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.proc main
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; force inPos.z = 0.0, inPos.w = 1.0
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mov r0.xy, inPos.xy
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mov r0.zw, constants.yx
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; outPos = proj * inPos
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dp4 outPos.x, proj[0], r0
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dp4 outPos.y, proj[1], r0
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dp4 outPos.z, proj[2], r0
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dp4 outPos.w, proj[3], r0
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; outUv = inUv
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mov outUv, inUv
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; normalize inColor
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mul r1, constants.zzzz, inColor
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; outColor = inColor
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mov outColor, r1
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; we're finished
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end
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.end
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