mirror of
https://github.com/mamedev/mame.git
synced 2024-11-16 07:48:32 +01:00
e57c90084c
- HLSL now uses NPOT sized target surfaces (breaks compatibility with graphics cards based on R300/R400/NV30 and older) - HLSL target surfaces now have the size of the screen canvas - removed HLSL pre-scale factor - HLSL now uses a sharp bilinear interpolation to pre-scale textures to screen canvas size, based on [Themaister's] implementation - improved overall performance (based on the previously required pre-scale factor, you might notice a 5-50% speed-up depending on your graphics card, more if you used a higher pre-scale factor) - improved shadow mask quality (pixel-perfect) in screen-mode - fixed half source texel offset of bloom level alignment - removed ./hlsl/artwork_support folder - all shaders after pre-scale are now based on screen coordinate (workaground, till both raster and vector pass can work on texture coordinates) - disabled distortion shader for more than one screen and for artworks in full mode, does not affect artworks in copped mode (workaground, till both raster and vector pass can work on texture coordinates) - moved compute_texture_size() from texture_info to texture_manager (nw)
125 lines
3.1 KiB
HLSL
125 lines
3.1 KiB
HLSL
// license:BSD-3-Clause
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// copyright-holders:Ryan Holtz
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//-----------------------------------------------------------------------------
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// Phosphor Effect
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//-----------------------------------------------------------------------------
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//-----------------------------------------------------------------------------
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// Sampler Definitions
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//-----------------------------------------------------------------------------
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texture Diffuse;
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sampler DiffuseSampler = sampler_state
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{
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Texture = <Diffuse>;
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MipFilter = LINEAR;
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MinFilter = LINEAR;
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MagFilter = LINEAR;
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AddressU = CLAMP;
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AddressV = CLAMP;
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AddressW = CLAMP;
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};
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texture LastPass;
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sampler PreviousSampler = sampler_state
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{
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Texture = <LastPass>;
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MipFilter = LINEAR;
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MinFilter = LINEAR;
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MagFilter = LINEAR;
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AddressU = CLAMP;
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AddressV = CLAMP;
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AddressW = CLAMP;
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};
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//-----------------------------------------------------------------------------
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// Vertex Definitions
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//-----------------------------------------------------------------------------
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struct VS_OUTPUT
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{
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float4 Position : POSITION;
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float4 Color : COLOR0;
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float2 TexCoord : TEXCOORD0;
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float2 PrevCoord : TEXCOORD1;
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};
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struct VS_INPUT
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{
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float3 Position : POSITION;
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float4 Color : COLOR0;
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float2 TexCoord : TEXCOORD0;
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};
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struct PS_INPUT
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{
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float4 Color : COLOR0;
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float2 TexCoord : TEXCOORD0;
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float2 PrevCoord : TEXCOORD1;
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};
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//-----------------------------------------------------------------------------
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// Phosphor Vertex Shader
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//-----------------------------------------------------------------------------
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uniform float2 ScreenDims;
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uniform float2 TargetDims;
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uniform bool Passthrough;
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VS_OUTPUT vs_main(VS_INPUT Input)
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{
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VS_OUTPUT Output = (VS_OUTPUT)0;
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Output.Position = float4(Input.Position.xyz, 1.0f);
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Output.Position.xy /= ScreenDims;
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Output.Position.y = 1.0f - Output.Position.y; // flip y
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Output.Position.xy -= 0.5f; // center
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Output.Position.xy *= 2.0f; // zoom
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Output.TexCoord = Input.Position.xy / ScreenDims;
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Output.TexCoord += 0.5f / TargetDims; // half texel offset correction (DX9)
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Output.PrevCoord = Output.TexCoord;
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Output.Color = Input.Color;
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return Output;
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}
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//-----------------------------------------------------------------------------
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// Phosphor Pixel Shader
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//-----------------------------------------------------------------------------
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uniform float3 Phosphor = float3(0.0f, 0.0f, 0.0f);
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float4 ps_main(PS_INPUT Input) : COLOR
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{
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float4 CurrPix = tex2D(DiffuseSampler, Input.TexCoord);
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float3 PrevPix = tex2D(PreviousSampler, Input.PrevCoord).rgb * float3(Phosphor.r, Phosphor.g, Phosphor.b);
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float RedMax = max(CurrPix.r, PrevPix.r);
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float GreenMax = max(CurrPix.g, PrevPix.g);
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float BlueMax = max(CurrPix.b, PrevPix.b);
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return Passthrough
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? CurrPix
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: float4(RedMax, GreenMax, BlueMax, CurrPix.a);
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}
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//-----------------------------------------------------------------------------
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// Phosphor Technique
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//-----------------------------------------------------------------------------
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technique DefaultTechnique
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{
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pass Pass0
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{
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Lighting = FALSE;
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VertexShader = compile vs_2_0 vs_main();
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PixelShader = compile ps_2_0 ps_main();
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}
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}
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