pcsx2/plugins/GSdx/res/convert.fx

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#ifdef SHADER_MODEL // make safe to include in resource file to enforce dependency
#if SHADER_MODEL >= 0x400
#ifndef PS_SCALE_FACTOR
#define PS_SCALE_FACTOR 1
#endif
struct VS_INPUT
{
float4 p : POSITION;
float2 t : TEXCOORD0;
};
struct VS_OUTPUT
{
float4 p : SV_Position;
float2 t : TEXCOORD0;
};
Texture2D Texture;
SamplerState TextureSampler;
float4 sample_c(float2 uv)
{
return Texture.Sample(TextureSampler, uv);
}
struct PS_INPUT
{
float4 p : SV_Position;
float2 t : TEXCOORD0;
};
struct PS_OUTPUT
{
float4 c : SV_Target0;
};
#elif SHADER_MODEL <= 0x300
struct VS_INPUT
{
float4 p : POSITION;
float2 t : TEXCOORD0;
};
struct VS_OUTPUT
{
float4 p : POSITION;
float2 t : TEXCOORD0;
};
struct PS_INPUT
{
#if SHADER_MODEL < 0x300
float4 p : TEXCOORD1;
#else
float4 p : VPOS;
#endif
float2 t : TEXCOORD0;
};
struct PS_OUTPUT
{
float4 c : COLOR;
};
sampler Texture : register(s0);
float4 sample_c(float2 uv)
{
return tex2D(Texture, uv);
}
#endif
VS_OUTPUT vs_main(VS_INPUT input)
{
VS_OUTPUT output;
output.p = input.p;
output.t = input.t;
return output;
}
PS_OUTPUT ps_main0(PS_INPUT input)
{
PS_OUTPUT output;
output.c = sample_c(input.t);
return output;
}
PS_OUTPUT ps_main7(PS_INPUT input)
{
PS_OUTPUT output;
float4 c = sample_c(input.t);
c.a = dot(c.rgb, float3(0.299, 0.587, 0.114));
output.c = c;
return output;
}
float4 ps_crt(PS_INPUT input, int i)
{
float4 mask[4] =
{
float4(1, 0, 0, 0),
float4(0, 1, 0, 0),
float4(0, 0, 1, 0),
float4(1, 1, 1, 0)
};
return sample_c(input.t) * saturate(mask[i] + 0.5f);
}
float4 ps_scanlines(PS_INPUT input, int i)
{
float4 mask[2] =
{
float4(1, 1, 1, 0),
float4(0, 0, 0, 0)
};
return sample_c(input.t) * saturate(mask[i] + 0.5f);
}
#if SHADER_MODEL >= 0x400
uint ps_main1(PS_INPUT input) : SV_Target0
{
float4 c = sample_c(input.t);
c.a *= 256.0f / 127; // hm, 0.5 won't give us 1.0 if we just multiply with 2
uint4 i = c * float4(0x001f, 0x03e0, 0x7c00, 0x8000);
return (i.x & 0x001f) | (i.y & 0x03e0) | (i.z & 0x7c00) | (i.w & 0x8000);
}
PS_OUTPUT ps_main2(PS_INPUT input)
{
PS_OUTPUT output;
clip(sample_c(input.t).a - 127.5f / 255); // >= 0x80 pass
output.c = 0;
return output;
}
PS_OUTPUT ps_main3(PS_INPUT input)
{
PS_OUTPUT output;
clip(127.5f / 255 - sample_c(input.t).a); // < 0x80 pass (== 0x80 should not pass)
output.c = 0;
return output;
}
PS_OUTPUT ps_main4(PS_INPUT input)
{
PS_OUTPUT output;
output.c = fmod(sample_c(input.t) * 255 + 0.5f, 256) / 255;
return output;
}
PS_OUTPUT ps_main5(PS_INPUT input) // scanlines
{
PS_OUTPUT output;
uint4 p = (uint4)input.p;
output.c = ps_scanlines(input, p.y % 2);
return output;
}
PS_OUTPUT ps_main6(PS_INPUT input) // diagonal
{
PS_OUTPUT output;
uint4 p = (uint4)input.p;
output.c = ps_crt(input, (p.x + (p.y % 3)) % 3);
return output;
}
PS_OUTPUT ps_main8(PS_INPUT input) // triangular
{
PS_OUTPUT output;
uint4 p = (uint4)input.p;
// output.c = ps_crt(input, ((p.x + (p.y & 1) * 3) >> 1) % 3);
output.c = ps_crt(input, ((p.x + ((p.y >> 1) & 1) * 3) >> 1) % 3);
return output;
}
static const float PI = 3.14159265359f;
PS_OUTPUT ps_main9(PS_INPUT input) // triangular
{
PS_OUTPUT output;
float2 texdim, halfpixel;
Texture.GetDimensions(texdim.x, texdim.y);
if (ddy(input.t.y) * texdim.y > 0.5)
output.c = sample_c(input.t);
else
output.c = (0.9 - 0.4 * cos(2 * PI * input.t.y * texdim.y)) * sample_c(float2(input.t.x, (floor(input.t.y * texdim.y) + 0.5) / texdim.y));
return output;
}
uint ps_main10(PS_INPUT input) : SV_Target0
{
// Convert a FLOAT32 depth texture into a 32 bits UINT texture
return uint(exp2(32.0f) * sample_c(input.t).r);
}
PS_OUTPUT ps_main11(PS_INPUT input)
{
PS_OUTPUT output;
// Convert a FLOAT32 depth texture into a RGBA color texture
const float4 bitSh = float4(exp2(24.0f), exp2(16.0f), exp2(8.0f), exp2(0.0f));
const float4 bitMsk = float4(0.0, 1.0 / 256.0, 1.0 / 256.0, 1.0 / 256.0);
float4 res = frac(float4(sample_c(input.t).rrrr) * bitSh);
output.c = (res - res.xxyz * bitMsk) * 256.0f / 255.0f;
return output;
}
PS_OUTPUT ps_main12(PS_INPUT input)
{
PS_OUTPUT output;
// Convert a FLOAT32 (only 16 lsb) depth into a RGB5A1 color texture
const float4 bitSh = float4(exp2(32.0f), exp2(27.0f), exp2(22.0f), exp2(17.0f));
const uint4 bitMsk = uint4(0x1F, 0x1F, 0x1F, 0x1);
uint4 color = uint4(float4(sample_c(input.t).rrrr) * bitSh) & bitMsk;
output.c = float4(color) / float4(32.0f, 32.0f, 32.0f, 1.0f);
return output;
}
float ps_main13(PS_INPUT input) : SV_Depth
{
// Convert a RRGBA texture into a float depth texture
// FIXME: I'm afraid of the accuracy
const float4 bitSh = float4(exp2(-32.0f), exp2(-24.0f), exp2(-16.0f), exp2(-8.0f)) * (float4)255.0;
return dot(sample_c(input.t), bitSh);
}
float ps_main14(PS_INPUT input) : SV_Depth
{
// Same as above but without the alpha channel (24 bits Z)
// Convert a RRGBA texture into a float depth texture
const float3 bitSh = float3(exp2(-32.0f), exp2(-24.0f), exp2(-16.0f)) * (float3)255.0;
return dot(sample_c(input.t).rgb, bitSh);
}
float ps_main15(PS_INPUT input) : SV_Depth
{
// Same as above but without the A/B channels (16 bits Z)
// Convert a RRGBA texture into a float depth texture
// FIXME: I'm afraid of the accuracy
const float2 bitSh = float2(exp2(-32.0f), exp2(-24.0f)) * (float2)255.0;
return dot(sample_c(input.t).rg, bitSh);
}
float ps_main16(PS_INPUT input) : SV_Depth
{
// Convert a RGB5A1 (saved as RGBA8) color to a 16 bit Z
// FIXME: I'm afraid of the accuracy
const float4 bitSh = float4(exp2(-32.0f), exp2(-27.0f), exp2(-22.0f), exp2(-17.0f));
// Trunc color to drop useless lsb
float4 color = trunc(sample_c(input.t) * (float4)255.0 / float4(8.0f, 8.0f, 8.0f, 128.0f));
return dot(float4(color), bitSh);
}
PS_OUTPUT ps_main17(PS_INPUT input)
{
PS_OUTPUT output;
// Potential speed optimization. There is a high probability that
// game only want to extract a single channel (blue). It will allow
// to remove most of the conditional operation and yield a +2/3 fps
// boost on MGS3
//
// Hypothesis wrong in Prince of Persia ... Seriously WTF !
//#define ONLY_BLUE;
// Convert a RGBA texture into a 8 bits packed texture
// Input column: 8x2 RGBA pixels
// 0: 8 RGBA
// 1: 8 RGBA
// Output column: 16x4 Index pixels
// 0: 8 R | 8 B
// 1: 8 R | 8 B
// 2: 8 G | 8 A
// 3: 8 G | 8 A
float c;
uint2 sel = uint2(input.p.xy) % uint2(16u, 16u);
int2 tb = ((int2(input.p.xy) & ~int2(15, 3)) >> 1);
int ty = tb.y | (int(input.p.y) & 1);
int txN = tb.x | (int(input.p.x) & 7);
int txH = tb.x | ((int(input.p.x) + 4) & 7);
txN *= PS_SCALE_FACTOR;
txH *= PS_SCALE_FACTOR;
ty *= PS_SCALE_FACTOR;
// TODO investigate texture gather
float4 cN = Texture.Load(int3(txN, ty, 0));
float4 cH = Texture.Load(int3(txH, ty, 0));
if ((sel.y & 4u) == 0u)
{
#ifdef ONLY_BLUE
c = cN.b;
#else
// Column 0 and 2
if ((sel.y & 3u) < 2u)
{
// First 2 lines of the col
if (sel.x < 8u)
c = cN.r;
else
c = cN.b;
}
else
{
if (sel.x < 8u)
c = cH.g;
else
c = cH.a;
}
#endif
}
else
{
#ifdef ONLY_BLUE
c = cH.b;
#else
// Column 1 and 3
if ((sel.y & 3u) < 2u)
{
// First 2 lines of the col
if (sel.x < 8u)
c = cH.r;
else
c = cH.b;
}
else
{
if (sel.x < 8u)
c = cN.g;
else
c = cN.a;
}
#endif
}
output.c = (float4)(c); // Divide by something here?
return output;
}
#elif SHADER_MODEL <= 0x300
PS_OUTPUT ps_main1(PS_INPUT input)
{
PS_OUTPUT output;
float4 c = sample_c(input.t);
c.a *= 128.0f / 255; // *= 0.5f is no good here, need to do this in order to get 0x80 for 1.0f (instead of 0x7f)
output.c = c;
return output;
}
PS_OUTPUT ps_main2(PS_INPUT input)
{
PS_OUTPUT output;
clip(sample_c(input.t).a - 255.0f / 255); // >= 0x80 pass
output.c = 0;
return output;
}
PS_OUTPUT ps_main3(PS_INPUT input)
{
PS_OUTPUT output;
clip(254.95f / 255 - sample_c(input.t).a); // < 0x80 pass (== 0x80 should not pass)
output.c = 0;
return output;
}
PS_OUTPUT ps_main4(PS_INPUT input)
{
PS_OUTPUT output;
output.c = 1;
return output;
}
PS_OUTPUT ps_main5(PS_INPUT input) // scanlines
{
PS_OUTPUT output;
int4 p = (int4)input.p;
output.c = ps_scanlines(input, p.y % 2);
return output;
}
PS_OUTPUT ps_main6(PS_INPUT input) // diagonal
{
PS_OUTPUT output;
int4 p = (int4)input.p;
output.c = ps_crt(input, (p.x + (p.y % 3)) % 3);
return output;
}
PS_OUTPUT ps_main8(PS_INPUT input) // triangular
{
PS_OUTPUT output;
int4 p = (int4)input.p;
// output.c = ps_crt(input, ((p.x + (p.y % 2) * 3) / 2) % 3);
output.c = ps_crt(input, ((p.x + ((p.y / 2) % 2) * 3) / 2) % 3);
return output;
}
static const float PI = 3.14159265359f;
PS_OUTPUT ps_main9(PS_INPUT input) // triangular
{
PS_OUTPUT output;
// Needs DX9 conversion
/*float2 texdim, halfpixel;
Texture.GetDimensions(texdim.x, texdim.y);
if (ddy(input.t.y) * texdim.y > 0.5)
output.c = sample_c(input.t);
else
output.c = (0.5 - 0.5 * cos(2 * PI * input.t.y * texdim.y)) * sample_c(float2(input.t.x, (floor(input.t.y * texdim.y) + 0.5) / texdim.y));
*/
// replacement shader
int4 p = (int4)input.p;
output.c = ps_crt(input, ((p.x + ((p.y / 2) % 2) * 3) / 2) % 3);
return output;
}
#endif
#endif