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path: root/Source/Core/VideoCommon/Src/VertexShaderGen.cpp
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Diffstat (limited to 'Source/Core/VideoCommon/Src/VertexShaderGen.cpp')
-rw-r--r--Source/Core/VideoCommon/Src/VertexShaderGen.cpp102
1 files changed, 61 insertions, 41 deletions
diff --git a/Source/Core/VideoCommon/Src/VertexShaderGen.cpp b/Source/Core/VideoCommon/Src/VertexShaderGen.cpp
index 294e363756..eac041d5c9 100644
--- a/Source/Core/VideoCommon/Src/VertexShaderGen.cpp
+++ b/Source/Core/VideoCommon/Src/VertexShaderGen.cpp
@@ -1,19 +1,6 @@
-// Copyright (C) 2003 Dolphin Project.
-
-// This program is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, version 2.0.
-
-// This program is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-// GNU General Public License 2.0 for more details.
-
-// A copy of the GPL 2.0 should have been included with the program.
-// If not, see http://www.gnu.org/licenses/
-
-// Official SVN repository and contact information can be found at
-// http://code.google.com/p/dolphin-emu/
+// Copyright 2013 Dolphin Emulator Project
+// Licensed under GPLv2
+// Refer to the license.txt file included.
#include <math.h>
#include <locale.h>
@@ -125,7 +112,7 @@ static void GenerateVertexShader(T& out, u32 components, API_TYPE api_type)
{
out.Write("ATTRIN float4 rawpos; // ATTR%d,\n", SHADER_POSITION_ATTRIB);
if (components & VB_HAS_POSMTXIDX)
- out.Write("ATTRIN int posmtx; // ATTR%d,\n", SHADER_POSMTX_ATTRIB);
+ out.Write("ATTRIN float posmtx; // ATTR%d,\n", SHADER_POSMTX_ATTRIB);
if (components & VB_HAS_NRM0)
out.Write("ATTRIN float3 rawnorm0; // ATTR%d,\n", SHADER_NORM0_ATTRIB);
if (components & VB_HAS_NRM1)
@@ -138,7 +125,8 @@ static void GenerateVertexShader(T& out, u32 components, API_TYPE api_type)
if (components & VB_HAS_COL1)
out.Write("ATTRIN float4 color1; // ATTR%d,\n", SHADER_COLOR1_ATTRIB);
- for (int i = 0; i < 8; ++i) {
+ for (int i = 0; i < 8; ++i)
+ {
u32 hastexmtx = (components & (VB_HAS_TEXMTXIDX0<<i));
if ((components & (VB_HAS_UV0<<i)) || hastexmtx)
out.Write("ATTRIN float%d tex%d; // ATTR%d,\n", hastexmtx ? 3 : 2, i, SHADER_TEXTURE0_ATTRIB + i);
@@ -179,13 +167,15 @@ static void GenerateVertexShader(T& out, u32 components, API_TYPE api_type)
// inputs
if (components & VB_HAS_NRM0)
out.Write(" float3 rawnorm0 : NORMAL0,\n");
- if (components & VB_HAS_NRM1) {
+ if (components & VB_HAS_NRM1)
+ {
if (is_d3d)
out.Write(" float3 rawnorm1 : NORMAL1,\n");
else
out.Write(" float3 rawnorm1 : ATTR%d,\n", SHADER_NORM1_ATTRIB);
}
- if (components & VB_HAS_NRM2) {
+ if (components & VB_HAS_NRM2)
+ {
if (is_d3d)
out.Write(" float3 rawnorm2 : NORMAL2,\n");
else
@@ -195,12 +185,14 @@ static void GenerateVertexShader(T& out, u32 components, API_TYPE api_type)
out.Write(" float4 color0 : COLOR0,\n");
if (components & VB_HAS_COL1)
out.Write(" float4 color1 : COLOR1,\n");
- for (int i = 0; i < 8; ++i) {
+ for (int i = 0; i < 8; ++i)
+ {
u32 hastexmtx = (components & (VB_HAS_TEXMTXIDX0<<i));
if ((components & (VB_HAS_UV0<<i)) || hastexmtx)
out.Write(" float%d tex%d : TEXCOORD%d,\n", hastexmtx ? 3 : 2, i, i);
}
- if (components & VB_HAS_POSMTXIDX) {
+ if (components & VB_HAS_POSMTXIDX)
+ {
if (is_d3d)
out.Write(" float4 blend_indices : BLENDINDICES,\n");
else
@@ -208,7 +200,7 @@ static void GenerateVertexShader(T& out, u32 components, API_TYPE api_type)
}
out.Write(" float4 rawpos : POSITION) {\n");
}
- out.Write("VS_OUTPUT o;\n");
+ out.Write("VS_OUTPUT o;\n");
// transforms
if (components & VB_HAS_POSMTXIDX)
@@ -222,6 +214,10 @@ static void GenerateVertexShader(T& out, u32 components, API_TYPE api_type)
{
out.Write("int posmtx = blend_indices.x * 255.0f;\n");
}
+ else
+ {
+ out.Write("int posmtx = int(fposmtx);\n");
+ }
out.Write("float4 pos = float4(dot(" I_TRANSFORMMATRICES"[posmtx], rawpos), dot(" I_TRANSFORMMATRICES"[posmtx+1], rawpos), dot(" I_TRANSFORMMATRICES"[posmtx+2], rawpos), 1);\n");
@@ -288,19 +284,22 @@ static void GenerateVertexShader(T& out, u32 components, API_TYPE api_type)
// transform texcoords
out.Write("float4 coord = float4(0.0f, 0.0f, 1.0f, 1.0f);\n");
- for (unsigned int i = 0; i < xfregs.numTexGen.numTexGens; ++i) {
+ for (unsigned int i = 0; i < xfregs.numTexGen.numTexGens; ++i)
+ {
TexMtxInfo& texinfo = xfregs.texMtxInfo[i];
out.Write("{\n");
out.Write("coord = float4(0.0f, 0.0f, 1.0f, 1.0f);\n");
uid_data.texMtxInfo[i].sourcerow = xfregs.texMtxInfo[i].sourcerow;
- switch (texinfo.sourcerow) {
+ switch (texinfo.sourcerow)
+ {
case XF_SRCGEOM_INROW:
_assert_( texinfo.inputform == XF_TEXINPUT_ABC1 );
out.Write("coord = rawpos;\n"); // pos.w is 1
break;
case XF_SRCNORMAL_INROW:
- if (components & VB_HAS_NRM0) {
+ if (components & VB_HAS_NRM0)
+ {
_assert_( texinfo.inputform == XF_TEXINPUT_ABC1 );
out.Write("coord = float4(rawnorm0.xyz, 1.0f);\n");
}
@@ -309,13 +308,15 @@ static void GenerateVertexShader(T& out, u32 components, API_TYPE api_type)
_assert_( texinfo.texgentype == XF_TEXGEN_COLOR_STRGBC0 || texinfo.texgentype == XF_TEXGEN_COLOR_STRGBC1 );
break;
case XF_SRCBINORMAL_T_INROW:
- if (components & VB_HAS_NRM1) {
+ if (components & VB_HAS_NRM1)
+ {
_assert_( texinfo.inputform == XF_TEXINPUT_ABC1 );
out.Write("coord = float4(rawnorm1.xyz, 1.0f);\n");
}
break;
case XF_SRCBINORMAL_B_INROW:
- if (components & VB_HAS_NRM2) {
+ if (components & VB_HAS_NRM2)
+ {
_assert_( texinfo.inputform == XF_TEXINPUT_ABC1 );
out.Write("coord = float4(rawnorm2.xyz, 1.0f);\n");
}
@@ -329,10 +330,12 @@ static void GenerateVertexShader(T& out, u32 components, API_TYPE api_type)
// first transformation
uid_data.texMtxInfo[i].texgentype = xfregs.texMtxInfo[i].texgentype;
- switch (texinfo.texgentype) {
+ switch (texinfo.texgentype)
+ {
case XF_TEXGEN_EMBOSS_MAP: // calculate tex coords into bump map
- if (components & (VB_HAS_NRM1|VB_HAS_NRM2)) {
+ if (components & (VB_HAS_NRM1|VB_HAS_NRM2))
+ {
// transform the light dir into tangent space
uid_data.texMtxInfo[i].embosslightshift = xfregs.texMtxInfo[i].embosslightshift;
uid_data.texMtxInfo[i].embosssourceshift = xfregs.texMtxInfo[i].embosssourceshift;
@@ -363,11 +366,11 @@ static void GenerateVertexShader(T& out, u32 components, API_TYPE api_type)
out.Write("int tmp = int(tex%d.z);\n", i);
if (texinfo.projection == XF_TEXPROJ_STQ)
out.Write("o.tex%d.xyz = float3(dot(coord, " I_TRANSFORMMATRICES"[tmp]), dot(coord, " I_TRANSFORMMATRICES"[tmp+1]), dot(coord, " I_TRANSFORMMATRICES"[tmp+2]));\n", i);
- else {
+ else
out.Write("o.tex%d.xyz = float3(dot(coord, " I_TRANSFORMMATRICES"[tmp]), dot(coord, " I_TRANSFORMMATRICES"[tmp+1]), 1);\n", i);
- }
}
- else {
+ else
+ {
if (texinfo.projection == XF_TEXPROJ_STQ)
out.Write("o.tex%d.xyz = float3(dot(coord, " I_TEXMATRICES"[%d]), dot(coord, " I_TEXMATRICES"[%d]), dot(coord, " I_TEXMATRICES"[%d]));\n", i, 3*i, 3*i+1, 3*i+2);
else
@@ -377,7 +380,9 @@ static void GenerateVertexShader(T& out, u32 components, API_TYPE api_type)
}
uid_data.dualTexTrans.enabled = xfregs.dualTexTrans.enabled;
- if (xfregs.dualTexTrans.enabled && texinfo.texgentype == XF_TEXGEN_REGULAR) { // only works for regular tex gen types?
+ // CHECKME: does this only work for regular tex gen types?
+ if (xfregs.dualTexTrans.enabled && texinfo.texgentype == XF_TEXGEN_REGULAR)
+ {
const PostMtxInfo& postInfo = xfregs.postMtxInfo[i];
uid_data.postMtxInfo[i].index = xfregs.postMtxInfo[i].index;
@@ -387,7 +392,8 @@ static void GenerateVertexShader(T& out, u32 components, API_TYPE api_type)
"float4 P2 = " I_POSTTRANSFORMMATRICES"[%d];\n",
postidx&0x3f, (postidx+1)&0x3f, (postidx+2)&0x3f);
- if (texGenSpecialCase) {
+ if (texGenSpecialCase)
+ {
// no normalization
// q of input is 1
// q of output is unknown
@@ -410,9 +416,12 @@ static void GenerateVertexShader(T& out, u32 components, API_TYPE api_type)
}
// clipPos/w needs to be done in pixel shader, not here
- if (xfregs.numTexGen.numTexGens < 7) {
+ if (xfregs.numTexGen.numTexGens < 7)
+ {
out.Write("o.clipPos = float4(pos.x,pos.y,o.pos.z,o.pos.w);\n");
- } else {
+ }
+ else
+ {
out.Write("o.tex0.w = pos.x;\n");
out.Write("o.tex1.w = pos.y;\n");
out.Write("o.tex2.w = o.pos.z;\n");
@@ -421,9 +430,12 @@ static void GenerateVertexShader(T& out, u32 components, API_TYPE api_type)
if(g_ActiveConfig.bEnablePixelLighting && g_ActiveConfig.backend_info.bSupportsPixelLighting)
{
- if (xfregs.numTexGen.numTexGens < 7) {
+ if (xfregs.numTexGen.numTexGens < 7)
+ {
out.Write("o.Normal = float4(_norm0.x,_norm0.y,_norm0.z,pos.z);\n");
- } else {
+ }
+ else
+ {
out.Write("o.tex4.w = _norm0.x;\n");
out.Write("o.tex5.w = _norm0.y;\n");
out.Write("o.tex6.w = _norm0.z;\n");
@@ -432,6 +444,7 @@ static void GenerateVertexShader(T& out, u32 components, API_TYPE api_type)
else
out.Write("o.tex7.w = pos.z;\n");
}
+
if (components & VB_HAS_COL0)
out.Write("o.colors_0 = color0;\n");
@@ -483,16 +496,21 @@ static void GenerateVertexShader(T& out, u32 components, API_TYPE api_type)
// Will look better when we bind uniforms in GLSL 1.3
// clipPos/w needs to be done in pixel shader, not here
- if (xfregs.numTexGen.numTexGens < 7) {
+ if (xfregs.numTexGen.numTexGens < 7)
+ {
for (unsigned int i = 0; i < 8; ++i)
+ {
if(i < xfregs.numTexGen.numTexGens)
out.Write(" uv%d_2.xyz = o.tex%d;\n", i, i);
else
out.Write(" uv%d_2.xyz = float3(0.0f, 0.0f, 0.0f);\n", i);
+ }
out.Write(" clipPos_2 = o.clipPos;\n");
if(g_ActiveConfig.bEnablePixelLighting && g_ActiveConfig.backend_info.bSupportsPixelLighting)
out.Write(" Normal_2 = o.Normal;\n");
- } else {
+ }
+ else
+ {
// clip position is in w of first 4 texcoords
if (g_ActiveConfig.bEnablePixelLighting && g_ActiveConfig.backend_info.bSupportsPixelLighting)
{
@@ -511,7 +529,9 @@ static void GenerateVertexShader(T& out, u32 components, API_TYPE api_type)
out.Write("}\n");
}
else
+ {
out.Write("return o;\n}\n");
+ }
if (text[sizeof(text) - 1] != 0x7C)
PanicAlert("VertexShader generator - buffer too small, canary has been eaten!");
generated by cgit v1.2.3 (git 2.25.1) at 2026-10-09 11:10:36 +0000