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pcsx2/plugins/GSdx/res/tfx.glsl

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GLSL
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//#version 420 // Keep it for text editor detection
// note lerp => mix
#define FMT_32 0
#define FMT_24 1
#define FMT_16 2
#define FMT_PAL 4 /* flag bit */
// Not sure we have same issue on opengl. Doesn't work anyway on ATI card
// And I say this as an ATI user.
#define ATI_SUCKS 0
#ifndef VS_BPPZ
#define VS_BPPZ 0
#define VS_TME 1
#define VS_FST 1
#define VS_LOGZ 0
#endif
#ifndef PS_FST
#define PS_FST 0
#define PS_WMS 0
#define PS_WMT 0
#define PS_FMT FMT_32
#define PS_AEM 0
#define PS_TFX 0
#define PS_TCC 1
#define PS_ATST 1
#define PS_FOG 0
#define PS_CLR1 0
#define PS_FBA 0
#define PS_AOUT 0
#define PS_LTF 1
#define PS_COLCLIP 0
#define PS_DATE 0
#define PS_SPRITEHACK 0
#define PS_POINT_SAMPLER 0
#define PS_TCOFFSETHACK 0
#define PS_IIP 1
#endif
struct vertex
{
vec4 t;
vec4 c;
vec4 fc;
};
#ifdef VERTEX_SHADER
layout(location = 0) in vec2 i_st;
layout(location = 2) in vec4 i_c;
layout(location = 3) in float i_q;
layout(location = 4) in uvec2 i_p;
layout(location = 5) in uint i_z;
layout(location = 6) in uvec2 i_uv;
layout(location = 7) in vec4 i_f;
out SHADER
{
vec4 t;
vec4 c;
flat vec4 fc;
} VSout;
#define VSout_t (VSout.t)
#define VSout_c (VSout.c)
#define VSout_fc (VSout.fc)
out gl_PerVertex {
invariant vec4 gl_Position;
float gl_PointSize;
#if !pGL_ES
float gl_ClipDistance[];
#endif
};
layout(std140, binding = 20) uniform cb20
{
vec2 VertexScale;
vec2 VertexOffset;
vec2 TextureScale;
};
#ifdef ZERO_TO_ONE_DEPTH
const float exp_min32 = exp2(-32.0f);
#else
const float exp_min31 = exp2(-31.0f);
#endif
#ifdef SUBROUTINE_GL40
// Function pointer type
subroutine void TextureCoordType(void);
// a function pointer variable
layout(location = 0) subroutine uniform TextureCoordType texture_coord;
layout(index = 0) subroutine(TextureCoordType)
void tme_0()
{
VSout_t.xy = vec2(0.0f, 0.0f);
VSout_t.w = 1.0f;
}
layout(index = 1) subroutine(TextureCoordType)
void tme_1_fst_0()
{
VSout_t.xy = i_st;
VSout_t.w = i_q;
}
layout(index = 2) subroutine(TextureCoordType)
void tme_1_fst_1()
{
VSout_t.xy = vec2(i_uv) * TextureScale;
VSout_t.w = 1.0f;
}
#else
void texture_coord()
{
if(VS_TME != 0)
{
if(VS_FST != 0)
{
VSout_t.xy = vec2(i_uv) * TextureScale;
VSout_t.w = 1.0f;
}
else
{
VSout_t.xy = i_st;
VSout_t.w = i_q;
}
}
else
{
VSout_t.xy = vec2(0.0f, 0.0f);
VSout_t.w = 1.0f;
}
}
#endif
void vs_main()
{
highp uint z;
if(VS_BPPZ == 1) // 24
z = i_z & uint(0xffffff);
else if(VS_BPPZ == 2) // 16
z = i_z & uint(0xffff);
else
z = i_z;
// pos -= 0.05 (1/320 pixel) helps avoiding rounding problems (integral part of pos is usually 5 digits, 0.05 is about as low as we can go)
// example: ceil(afterseveralvertextransformations(y = 133)) => 134 => line 133 stays empty
// input granularity is 1/16 pixel, anything smaller than that won't step drawing up/left by one pixel
// example: 133.0625 (133 + 1/16) should start from line 134, ceil(133.0625 - 0.05) still above 133
vec4 p;
p.xy = vec2(i_p) - vec2(0.05f, 0.05f);
p.xy = p.xy * VertexScale - VertexOffset;
p.w = 1.0f;
#ifdef ZERO_TO_ONE_DEPTH
if(VS_LOGZ == 1) {
p.z = log2(float(1u+z)) / 32.0f;
} else {
p.z = float(z) * exp_min32;
}
#else
if(VS_LOGZ == 1) {
p.z = log2(float(1u+z)) / 31.0f - 1.0f;
} else {
p.z = float(z) * exp_min31 - 1.0f;
}
#endif
gl_Position = p;
texture_coord();
VSout_c = i_c;
VSout_fc = i_c;
VSout_t.z = i_f.r;
}
#endif
#ifdef GEOMETRY_SHADER
in gl_PerVertex {
invariant vec4 gl_Position;
float gl_PointSize;
#if !pGL_ES
float gl_ClipDistance[];
#endif
} gl_in[];
//in int gl_PrimitiveIDIn;
out gl_PerVertex {
vec4 gl_Position;
float gl_PointSize;
#if !pGL_ES
float gl_ClipDistance[];
#endif
};
//out int gl_PrimitiveID;
in SHADER
{
vec4 t;
vec4 c;
flat vec4 fc;
} GSin[];
out SHADER
{
vec4 t;
vec4 c;
flat vec4 fc;
} GSout;
void out_vertex(in vertex v)
{
GSout.t = v.t;
GSout.c = v.c;
GSout.fc = v.fc;
gl_PrimitiveID = gl_PrimitiveIDIn;
EmitVertex();
}
layout(lines) in;
layout(triangle_strip, max_vertices = 6) out;
void gs_main()
{
// left top => GSin[0];
// right bottom => GSin[1];
vertex rb = vertex(GSin[1].t, GSin[1].c, GSin[1].fc);
vertex lt = vertex(GSin[0].t, GSin[0].c, GSin[0].fc);
vec4 rb_p = gl_in[1].gl_Position;
vec4 lb_p = gl_in[1].gl_Position;
vec4 rt_p = gl_in[1].gl_Position;
vec4 lt_p = gl_in[0].gl_Position;
// flat depth
lt_p.z = rb_p.z;
// flat fog and texture perspective
lt.t.zw = rb.t.zw;
// flat color
lt.c = rb.c;
// Swap texture and position coordinate
vertex lb = rb;
lb_p.x = lt_p.x;
lb.t.x = lt.t.x;
vertex rt = rb;
rt_p.y = lt_p.y;
rt.t.y = lt.t.y;
// Triangle 1
gl_Position = lt_p;
out_vertex(lt);
gl_Position = lb_p;
out_vertex(lb);
gl_Position = rt_p;
out_vertex(rt);
EndPrimitive();
// Triangle 2
gl_Position = lb_p;
out_vertex(lb);
gl_Position = rt_p;
out_vertex(rt);
gl_Position = rb_p;
out_vertex(rb);
EndPrimitive();
}
#endif
#ifdef FRAGMENT_SHADER
in SHADER
{
vec4 t;
vec4 c;
flat vec4 fc;
} PSin;
#define PSin_t (PSin.t)
#define PSin_c (PSin.c)
#define PSin_fc (PSin.fc)
// Same buffer but 2 colors for dual source blending
#if pGL_ES
layout(location = 0) out vec4 SV_Target0;
#else
layout(location = 0, index = 0) out vec4 SV_Target0;
layout(location = 0, index = 1) out vec4 SV_Target1;
#endif
#ifdef ENABLE_BINDLESS_TEX
layout(bindless_sampler, location = 0) uniform sampler2D TextureSampler;
layout(bindless_sampler, location = 1) uniform sampler2D PaletteSampler;
#else
layout(binding = 0) uniform sampler2D TextureSampler;
layout(binding = 1) uniform sampler2D PaletteSampler;
#endif
#ifndef DISABLE_GL42_image
#if PS_DATE > 0
// FIXME how to declare memory access
layout(r32i, binding = 2) coherent uniform iimage2D img_prim_min;
#endif
#else
// use basic stencil
#endif
#ifndef DISABLE_GL42_image
#if PS_DATE > 0
// origin_upper_left
layout(pixel_center_integer) in vec4 gl_FragCoord;
//in int gl_PrimitiveID;
#endif
#endif
layout(std140, binding = 21) uniform cb21
{
vec3 FogColor;
float AREF;
vec4 WH;
vec2 MinF;
vec2 TA;
uvec4 MskFix;
vec4 HalfTexel;
vec4 MinMax;
vec4 TC_OffsetHack;
};
vec4 sample_c(vec2 uv)
{
// FIXME: check the issue on openGL
if (ATI_SUCKS == 1 && PS_POINT_SAMPLER == 1)
{
// Weird issue with ATI cards (happens on at least HD 4xxx and 5xxx),
// it looks like they add 127/128 of a texel to sampling coordinates
// occasionally causing point sampling to erroneously round up.
// I'm manually adjusting coordinates to the centre of texels here,
// though the centre is just paranoia, the top left corner works fine.
uv = (trunc(uv * WH.zw) + vec2(0.5, 0.5)) / WH.zw;
}
return texture(TextureSampler, uv);
}
vec4 sample_p(float u)
{
//FIXME do we need a 1D sampler. Big impact on opengl to find 1 dim
// So for the moment cheat with 0.0f dunno if it work
return texture(PaletteSampler, vec2(u, 0.0f));
}
#if 0
vec4 sample_rt(vec2 uv)
{
return texture(RTCopySampler, uv);
}
#endif
// FIXME crash nvidia
#if 0
// Function pointer type
subroutine vec4 WrapType(vec4 uv);
// a function pointer variable
layout(location = 4) subroutine uniform WrapType wrapuv;
layout(index = 24) subroutine(WrapType)
vec4 wrapuv_wms_wmt_2(vec4 uv)
{
vec4 uv_out = uv;
uv_out = clamp(uv, MinMax.xyxy, MinMax.zwzw);
return uv_out;
}
layout(index = 25) subroutine(WrapType)
vec4 wrapuv_wms_wmt3(vec4 uv)
{
vec4 uv_out = uv;
uv_out = vec4((ivec4(uv * WH.xyxy) & ivec4(MskFix.xyxy)) | ivec4(MskFix.zwzw)) / WH.xyxy;
return uv_out;
}
layout(index = 26) subroutine(WrapType)
vec4 wrapuv_wms2_wmt3(vec4 uv)
{
vec4 uv_out = uv;
uv_out.xz = clamp(uv.xz, MinMax.xx, MinMax.zz);
uv_out.yw = vec2((ivec2(uv.yw * WH.yy) & ivec2(MskFix.yy)) | ivec2(MskFix.ww)) / WH.yy;
return uv_out;
}
layout(index = 27) subroutine(WrapType)
vec4 wrapuv_wms3_wmt2(vec4 uv)
{
vec4 uv_out = uv;
uv_out.xz = vec2((ivec2(uv.xz * WH.xx) & ivec2(MskFix.xx)) | ivec2(MskFix.zz)) / WH.xx;
uv_out.yw = clamp(uv.yw, MinMax.yy, MinMax.ww);
return uv_out;
}
layout(index = 28) subroutine(WrapType)
vec4 wrapuv_wms2_wmtx(vec4 uv)
{
vec4 uv_out = uv;
uv_out.xz = clamp(uv.xz, MinMax.xx, MinMax.zz);
return uv_out;
}
layout(index = 29) subroutine(WrapType)
vec4 wrapuv_wmsx_wmt3(vec4 uv)
{
vec4 uv_out = uv;
uv_out.yw = vec2((ivec2(uv.yw * WH.yy) & ivec2(MskFix.yy)) | ivec2(MskFix.ww)) / WH.yy;
return uv_out;
}
layout(index = 30) subroutine(WrapType)
vec4 wrapuv_wms3_wmtx(vec4 uv)
{
vec4 uv_out = uv;
uv_out.xz = vec2((ivec2(uv.xz * WH.xx) & ivec2(MskFix.xx)) | ivec2(MskFix.zz)) / WH.xx;
return uv_out;
}
layout(index = 31) subroutine(WrapType)
vec4 wrapuv_wmsx_wmt2(vec4 uv)
{
vec4 uv_out = uv;
uv_out.yw = clamp(uv.yw, MinMax.yy, MinMax.ww);
return uv_out;
}
layout(index = 32) subroutine(WrapType)
vec4 wrapuv_dummy(vec4 uv)
{
return uv;
}
#else
vec4 wrapuv(vec4 uv)
{
vec4 uv_out = uv;
if(PS_WMS == PS_WMT)
{
if(PS_WMS == 2)
{
uv_out = clamp(uv, MinMax.xyxy, MinMax.zwzw);
}
else if(PS_WMS == 3)
{
uv_out = vec4((ivec4(uv * WH.xyxy) & ivec4(MskFix.xyxy)) | ivec4(MskFix.zwzw)) / WH.xyxy;
}
}
else
{
if(PS_WMS == 2)
{
uv_out.xz = clamp(uv.xz, MinMax.xx, MinMax.zz);
}
else if(PS_WMS == 3)
{
uv_out.xz = vec2((ivec2(uv.xz * WH.xx) & ivec2(MskFix.xx)) | ivec2(MskFix.zz)) / WH.xx;
}
if(PS_WMT == 2)
{
uv_out.yw = clamp(uv.yw, MinMax.yy, MinMax.ww);
}
else if(PS_WMT == 3)
{
uv_out.yw = vec2((ivec2(uv.yw * WH.yy) & ivec2(MskFix.yy)) | ivec2(MskFix.ww)) / WH.yy;
}
}
return uv_out;
}
#endif
// FIXME crash nvidia
#if 0
// Function pointer type
subroutine vec2 ClampType(vec2 uv);
// a function pointer variable
layout(location = 3) subroutine uniform ClampType clampuv;
layout(index = 20) subroutine(ClampType)
vec2 clampuv_wms2_wmt2(vec2 uv)
{
return clamp(uv, MinF, MinMax.zw);
}
layout(index = 21) subroutine(ClampType)
vec2 clampuv_wms2(vec2 uv)
{
vec2 uv_out = uv;
uv_out.x = clamp(uv.x, MinF.x, MinMax.z);
return uv_out;
}
layout(index = 22) subroutine(ClampType)
vec2 clampuv_wmt2(vec2 uv)
{
vec2 uv_out = uv;
uv_out.y = clamp(uv.y, MinF.y, MinMax.w);
return uv_out;
}
layout(index = 23) subroutine(ClampType)
vec2 clampuv_dummy(vec2 uv)
{
return uv;
}
#else
vec2 clampuv(vec2 uv)
{
vec2 uv_out = uv;
if(PS_WMS == 2 && PS_WMT == 2)
{
uv_out = clamp(uv, MinF, MinMax.zw);
}
else if(PS_WMS == 2)
{
uv_out.x = clamp(uv.x, MinF.x, MinMax.z);
}
else if(PS_WMT == 2)
{
uv_out.y = clamp(uv.y, MinF.y, MinMax.w);
}
return uv_out;
}
#endif
mat4 sample_4c(vec4 uv)
{
mat4 c;
c[0] = sample_c(uv.xy);
c[1] = sample_c(uv.zy);
c[2] = sample_c(uv.xw);
c[3] = sample_c(uv.zw);
return c;
}
vec4 sample_4a(vec4 uv)
{
vec4 c;
// Dx used the alpha channel.
// Opengl is only 8 bits on red channel.
c.x = sample_c(uv.xy).r;
c.y = sample_c(uv.zy).r;
c.z = sample_c(uv.xw).r;
c.w = sample_c(uv.zw).r;
return c * 255.0/256.0 + 0.5/256.0;
}
mat4 sample_4p(vec4 u)
{
mat4 c;
c[0] = sample_p(u.x);
c[1] = sample_p(u.y);
c[2] = sample_p(u.z);
c[3] = sample_p(u.w);
return c;
}
vec4 sample_color(vec2 st, float q)
{
if(PS_FST == 0) st /= q;
if(PS_TCOFFSETHACK == 1) st += TC_OffsetHack.xy;
vec4 t;
mat4 c;
vec2 dd;
if (PS_LTF == 0 && PS_FMT <= FMT_16 && PS_WMS < 3 && PS_WMT < 3)
{
c[0] = sample_c(clampuv(st));
}
else
{
vec4 uv;
if(PS_LTF != 0)
{
uv = st.xyxy + HalfTexel;
dd = fract(uv.xy * WH.zw);
}
else
{
uv = st.xyxy;
}
uv = wrapuv(uv);
if((PS_FMT & FMT_PAL) != 0)
{
c = sample_4p(sample_4a(uv));
}
else
{
c = sample_4c(uv);
}
}
// PERF: see the impact of the exansion before/after the interpolation
for (int i = 0; i < 4; i++)
{
if((PS_FMT & ~FMT_PAL) == FMT_24)
{
// FIXME GLSL any only support bvec so try to mix it with notEqual
bvec3 rgb_check = notEqual( c[i].rgb, vec3(0.0f, 0.0f, 0.0f) );
c[i].a = ( (PS_AEM == 0) || any(rgb_check) ) ? TA.x : 0.0f;
}
else if((PS_FMT & ~FMT_PAL) == FMT_16)
{
// FIXME GLSL any only support bvec so try to mix it with notEqual
bvec3 rgb_check = notEqual( c[i].rgb, vec3(0.0f, 0.0f, 0.0f) );
c[i].a = c[i].a >= 0.5 ? TA.y : ( (PS_AEM == 0) || any(rgb_check) ) ? TA.x : 0.0f;
}
}
if(PS_LTF != 0)
{
t = mix(mix(c[0], c[1], dd.x), mix(c[2], c[3], dd.x), dd.y);
}
else
{
t = c[0];
}
return t;
}
#ifdef SUBROUTINE_GL40
// Function pointer type
subroutine vec4 TfxType(vec4 t, vec4 c);
// a function pointer variable
layout(location = 2) subroutine uniform TfxType tfx;
layout(index = 11) subroutine(TfxType)
vec4 tfx_0_tcc_0(vec4 t, vec4 c)
{
vec4 c_out = c;
c_out.rgb = c.rgb * t.rgb * 255.0f / 128.0f;
return c_out;
}
layout(index = 12) subroutine(TfxType)
vec4 tfx_1_tcc_0(vec4 t, vec4 c)
{
vec4 c_out = c;
c_out.rgb = t.rgb;
return c_out;
}
layout(index = 13) subroutine(TfxType)
vec4 tfx_2_tcc_0(vec4 t, vec4 c)
{
vec4 c_out = c;
c_out.rgb = c.rgb * t.rgb * 255.0f / 128.0f + c.a;
return c_out;
}
layout(index = 14) subroutine(TfxType)
vec4 tfx_3_tcc_0(vec4 t, vec4 c)
{
vec4 c_out = c;
c_out.rgb = c.rgb * t.rgb * 255.0f / 128.0f + c.a;
return c_out;
}
layout(index = 15) subroutine(TfxType)
vec4 tfx_0_tcc_1(vec4 t, vec4 c)
{
vec4 c_out = c;
c_out = c * t * 255.0f / 128.0f;
return c_out;
}
layout(index = 16) subroutine(TfxType)
vec4 tfx_1_tcc_1(vec4 t, vec4 c)
{
vec4 c_out = c;
c_out = t;
return c_out;
}
layout(index = 17) subroutine(TfxType)
vec4 tfx_2_tcc_1(vec4 t, vec4 c)
{
vec4 c_out = c;
c_out.rgb = c.rgb * t.rgb * 255.0f / 128.0f + c.a;
c_out.a += t.a;
return c_out;
}
layout(index = 18) subroutine(TfxType)
vec4 tfx_3_tcc_1(vec4 t, vec4 c)
{
vec4 c_out = c;
c_out.rgb = c.rgb * t.rgb * 255.0f / 128.0f + c.a;
c_out.a = t.a;
return c_out;
}
layout(index = 19) subroutine(TfxType)
vec4 tfx_dummy(vec4 t, vec4 c)
{
return c;
}
#else
vec4 tfx(vec4 t, vec4 c)
{
vec4 c_out = c;
if(PS_TFX == 0)
{
if(PS_TCC != 0)
{
c_out = c * t * 255.0f / 128.0f;
}
else
{
c_out.rgb = c.rgb * t.rgb * 255.0f / 128.0f;
}
}
else if(PS_TFX == 1)
{
if(PS_TCC != 0)
{
c_out = t;
}
else
{
c_out.rgb = t.rgb;
}
}
else if(PS_TFX == 2)
{
c_out.rgb = c.rgb * t.rgb * 255.0f / 128.0f + c.a;
if(PS_TCC != 0)
{
c_out.a += t.a;
}
}
else if(PS_TFX == 3)
{
c_out.rgb = c.rgb * t.rgb * 255.0f / 128.0f + c.a;
if(PS_TCC != 0)
{
c_out.a = t.a;
}
}
return c_out;
}
#endif
#if 0
void datst()
{
#if PS_DATE > 0
float alpha = sample_rt(PSin_tp.xy).a;
float alpha0x80 = 128.0 / 255;
if (PS_DATE == 1 && alpha >= alpha0x80)
discard;
else if (PS_DATE == 2 && alpha < alpha0x80)
discard;
#endif
}
#endif
#ifdef SUBROUTINE_GL40
// Function pointer type
subroutine void AlphaTestType(vec4 c);
// a function pointer variable
layout(location = 0) subroutine uniform AlphaTestType atst;
layout(index = 0) subroutine(AlphaTestType)
void atest_never(vec4 c)
{
discard;
}
layout(index = 1) subroutine(AlphaTestType)
void atest_always(vec4 c)
{
// Nothing to do
}
layout(index = 2) subroutine(AlphaTestType)
void atest_l(vec4 c)
{
float a = trunc(c.a * 255.0 + 0.01);
if (PS_SPRITEHACK == 0)
if ((AREF - a - 0.5f) < 0.0f)
discard;
}
layout(index = 3) subroutine(AlphaTestType)
void atest_le(vec4 c)
{
float a = trunc(c.a * 255.0 + 0.01);
if ((AREF - a + 0.5f) < 0.0f)
discard;
}
layout(index = 4) subroutine(AlphaTestType)
void atest_e(vec4 c)
{
float a = trunc(c.a * 255.0 + 0.01);
if ((0.5f - abs(a - AREF)) < 0.0f)
discard;
}
layout(index = 5) subroutine(AlphaTestType)
void atest_ge(vec4 c)
{
float a = trunc(c.a * 255.0 + 0.01);
if ((a-AREF + 0.5f) < 0.0f)
discard;
}
layout(index = 6) subroutine(AlphaTestType)
void atest_g(vec4 c)
{
float a = trunc(c.a * 255.0 + 0.01);
if ((a-AREF - 0.5f) < 0.0f)
discard;
}
layout(index = 7) subroutine(AlphaTestType)
void atest_ne(vec4 c)
{
float a = trunc(c.a * 255.0 + 0.01);
if ((abs(a - AREF) - 0.5f) < 0.0f)
discard;
}
#else
void atst(vec4 c)
{
float a = trunc(c.a * 255.0 + 0.01);
if(PS_ATST == 0) // never
{
discard;
}
else if(PS_ATST == 1) // always
{
// nothing to do
}
else if(PS_ATST == 2 ) // l
{
if (PS_SPRITEHACK == 0)
if ((AREF - a - 0.5f) < 0.0f)
discard;
}
else if(PS_ATST == 3 ) // le
{
if ((AREF - a + 0.5f) < 0.0f)
discard;
}
else if(PS_ATST == 4) // e
{
if ((0.5f - abs(a - AREF)) < 0.0f)
discard;
}
else if(PS_ATST == 5) // ge
{
if ((a-AREF + 0.5f) < 0.0f)
discard;
}
else if(PS_ATST == 6) // g
{
if ((a-AREF - 0.5f) < 0.0f)
discard;
}
else if(PS_ATST == 7) // ne
{
if ((abs(a - AREF) - 0.5f) < 0.0f)
discard;
}
}
#endif
// Note layout stuff might require gl4.3
#ifdef SUBROUTINE_GL40
// Function pointer type
subroutine void ColClipType(inout vec4 c);
// a function pointer variable
layout(location = 1) subroutine uniform ColClipType colclip;
layout(index = 8) subroutine(ColClipType)
void colclip_0(inout vec4 c)
{
// nothing to do
}
layout(index = 9) subroutine(ColClipType)
void colclip_1(inout vec4 c)
{
// FIXME !!!!
//c.rgb *= c.rgb < 128./255;
bvec3 factor = bvec3(128.0f/255.0f, 128.0f/255.0f, 128.0f/255.0f);
c.rgb *= vec3(factor);
}
layout(index = 10) subroutine(ColClipType)
void colclip_2(inout vec4 c)
{
c.rgb = 256.0f/255.0f - c.rgb;
// FIXME !!!!
//c.rgb *= c.rgb < 128./255;
bvec3 factor = bvec3(128.0f/255.0f, 128.0f/255.0f, 128.0f/255.0f);
c.rgb *= vec3(factor);
}
#else
void colclip(inout vec4 c)
{
if (PS_COLCLIP == 2)
{
c.rgb = 256.0f/255.0f - c.rgb;
}
if (PS_COLCLIP > 0)
{
// FIXME !!!!
//c.rgb *= c.rgb < 128./255;
bvec3 factor = bvec3(128.0f/255.0f, 128.0f/255.0f, 128.0f/255.0f);
c.rgb *= vec3(factor);
}
}
#endif
void fog(inout vec4 c, float f)
{
if(PS_FOG != 0)
{
c.rgb = mix(FogColor, c.rgb, f);
}
}
vec4 ps_color()
{
vec4 t = sample_color(PSin_t.xy, PSin_t.w);
vec4 zero = vec4(0.0f, 0.0f, 0.0f, 0.0f);
vec4 one = vec4(1.0f, 1.0f, 1.0f, 1.0f);
#if PS_IIP == 1
vec4 c = clamp(tfx(t, PSin_c), zero, one);
#else
vec4 c = clamp(tfx(t, PSin_fc), zero, one);
#endif
atst(c);
fog(c, PSin_t.z);
colclip(c);
if(PS_CLR1 != 0) // needed for Cd * (As/Ad/F + 1) blending modes
{
c.rgb = vec3(1.0f, 1.0f, 1.0f);
}
return c;
}
#if pGL_ES
void ps_main()
{
vec4 c = ps_color();
c.a *= 2.0;
SV_Target0 = c;
}
#endif
#if !pGL_ES
void ps_main()
{
#if PS_DATE == 3 && !defined(DISABLE_GL42_image)
int stencil_ceil = imageLoad(img_prim_min, ivec2(gl_FragCoord.xy));
// Note gl_PrimitiveID == stencil_ceil will be the primitive that will update
// the bad alpha value so we must keep it.
if (gl_PrimitiveID > stencil_ceil) {
discard;
}
#endif
vec4 c = ps_color();
float alpha = c.a * 2.0;
if(PS_AOUT != 0) // 16 bit output
{
float a = 128.0f / 255.0; // alpha output will be 0x80
c.a = (PS_FBA != 0) ? a : step(0.5, c.a) * a;
}
else if(PS_FBA != 0)
{
if(c.a < 0.5) c.a += 0.5;
}
// Get first primitive that will write a failling alpha value
#if PS_DATE == 1 && !defined(DISABLE_GL42_image)
// DATM == 0
// Pixel with alpha equal to 1 will failed
if (c.a > 127.5f / 255.0f) {
imageAtomicMin(img_prim_min, ivec2(gl_FragCoord.xy), gl_PrimitiveID);
}
//memoryBarrier();
#elif PS_DATE == 2 && !defined(DISABLE_GL42_image)
// DATM == 1
// Pixel with alpha equal to 0 will failed
if (c.a < 127.5f / 255.0f) {
imageAtomicMin(img_prim_min, ivec2(gl_FragCoord.xy), gl_PrimitiveID);
}
#endif
#if (PS_DATE == 2 || PS_DATE == 1) && !defined(DISABLE_GL42_image)
// Don't write anything on the framebuffer
// Note: you can't use discard because it will also drop
// image operation
#else
SV_Target0 = c;
SV_Target1 = vec4(alpha, alpha, alpha, alpha);
#endif
}
#endif // !pGL_ES
#endif
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