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initial implementation of fog range adjust, I don't think is correct or work right but is a start.

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some tweaks and fixes.

git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@6957 8ced0084-cf51-0410-be5f-012b33b47a6e
This commit is contained in:
Rodolfo Osvaldo Bogado
2011-01-29 04:31:56 +00:00
parent 64af8abcae
commit 4c58c7ea03
9 changed files with 94 additions and 37 deletions
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30
Source/Core/VideoCommon/Src/PixelShaderGen.cpp
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@ -61,7 +61,7 @@ void GetPixelShaderId(PIXELSHADERUID *uid, DSTALPHA_MODE dstAlphaMode)
uid->values[2] = (u32)bpmem.fog.c_proj_fsel.fsel |
((u32)bpmem.fog.c_proj_fsel.proj << 3) |
((u32)enableZTexture << 4);
((u32)enableZTexture << 4) | ((u32)bpmem.fogRange.Base.Enabled << 5);
if(g_ActiveConfig.bEnablePixelLigting && g_ActiveConfig.backend_info.bSupportsPixelLighting)
{
@ -504,7 +504,7 @@ const char *GeneratePixelShaderCode(DSTALPHA_MODE dstAlphaMode, API_TYPE ApiType
WRITE(p, "uniform float4 "I_ZBIAS"[2] : register(c%d);\n", C_ZBIAS);
WRITE(p, "uniform float4 "I_INDTEXSCALE"[2] : register(c%d);\n", C_INDTEXSCALE);
WRITE(p, "uniform float4 "I_INDTEXMTX"[6] : register(c%d);\n", C_INDTEXMTX);
WRITE(p, "uniform float4 "I_FOG"[2] : register(c%d);\n", C_FOG);
WRITE(p, "uniform float4 "I_FOG"[3] : register(c%d);\n", C_FOG);
if(g_ActiveConfig.bEnablePixelLigting && g_ActiveConfig.backend_info.bSupportsPixelLighting)
{
@ -521,7 +521,7 @@ const char *GeneratePixelShaderCode(DSTALPHA_MODE dstAlphaMode, API_TYPE ApiType
WRITE(p, " out float4 ocol0 : COLOR0,%s%s\n in float4 rawpos : %s,\n",
dstAlphaMode == DSTALPHA_DUAL_SOURCE_BLEND ? "\n out float4 ocol1 : COLOR1," : "",
DepthTextureEnable ? "\n out float depth : DEPTH," : "",
ApiType == API_OPENGL ? "WPOS" : "POSITION");
ApiType == API_OPENGL ? "WPOS" : "VPOS");
}
else
{
@ -792,7 +792,7 @@ const char *GeneratePixelShaderCode(DSTALPHA_MODE dstAlphaMode, API_TYPE ApiType
}
// emulation of unisgned 8 overflow when casting if needed
if(RegisterStates[0].AlphaNeedOverflowControl || RegisterStates[0].ColorNeedOverflowControl)
WRITE(p, "prev = frac(4.0f + prev * (255.0f/256.0f)) * (256.0f/255.0f);\n");
WRITE(p, "prev = frac(prev * (255.0f/256.0f)) * (256.0f/255.0f);\n");
if (!WriteAlphaTest(p, ApiType, dstAlphaMode))
{
@ -997,7 +997,7 @@ static void WriteStage(char *&p, int n, API_TYPE ApiType)
if(bCRas || bARas)
{
WRITE(p, "rastemp = %s.%s;\n", tevRasTable[bpmem.tevorders[n / 2].getColorChan(n & 1)], rasswap);
WRITE(p, "crastemp = frac(4.0f + rastemp * (255.0f/256.0f)) * (256.0f/255.0f);\n");
WRITE(p, "crastemp = frac(rastemp * (255.0f/256.0f)) * (256.0f/255.0f);\n");
}
@ -1030,7 +1030,7 @@ static void WriteStage(char *&p, int n, API_TYPE ApiType)
WRITE(p, "konsttemp = float4(%s, %s);\n", tevKSelTableC[kc], tevKSelTableA[ka]);
if(kc > 7 || ka > 7)
{
WRITE(p, "ckonsttemp = frac(4.0f + konsttemp * (255.0f/256.0f)) * (256.0f/255.0f);\n");
WRITE(p, "ckonsttemp = frac(konsttemp * (255.0f/256.0f)) * (256.0f/255.0f);\n");
}
else
{
@ -1050,7 +1050,7 @@ static void WriteStage(char *&p, int n, API_TYPE ApiType)
{
if(RegisterStates[0].AlphaNeedOverflowControl || RegisterStates[0].ColorNeedOverflowControl)
{
WRITE(p, "cprev = frac(4.0f + prev * (255.0f/256.0f)) * (256.0f/255.0f);\n");
WRITE(p, "cprev = frac(prev * (255.0f/256.0f)) * (256.0f/255.0f);\n");
RegisterStates[0].AlphaNeedOverflowControl = false;
RegisterStates[0].ColorNeedOverflowControl = false;
}
@ -1073,7 +1073,7 @@ static void WriteStage(char *&p, int n, API_TYPE ApiType)
{
if(RegisterStates[1].AlphaNeedOverflowControl || RegisterStates[1].ColorNeedOverflowControl)
{
WRITE(p, "cc0 = frac(4.0f + c0 * (255.0f/256.0f)) * (256.0f/255.0f);\n");
WRITE(p, "cc0 = frac(c0 * (255.0f/256.0f)) * (256.0f/255.0f);\n");
RegisterStates[1].AlphaNeedOverflowControl = false;
RegisterStates[1].ColorNeedOverflowControl = false;
}
@ -1096,7 +1096,7 @@ static void WriteStage(char *&p, int n, API_TYPE ApiType)
{
if(RegisterStates[2].AlphaNeedOverflowControl || RegisterStates[2].ColorNeedOverflowControl)
{
WRITE(p, "cc1 = frac(4.0f + c1 * (255.0f/256.0f)) * (256.0f/255.0f);\n");
WRITE(p, "cc1 = frac(c1 * (255.0f/256.0f)) * (256.0f/255.0f);\n");
RegisterStates[2].AlphaNeedOverflowControl = false;
RegisterStates[2].ColorNeedOverflowControl = false;
}
@ -1119,7 +1119,7 @@ static void WriteStage(char *&p, int n, API_TYPE ApiType)
{
if(RegisterStates[3].AlphaNeedOverflowControl || RegisterStates[3].ColorNeedOverflowControl)
{
WRITE(p, "cc2 = frac(4.0f + c2 * (255.0f/256.0f)) * (256.0f/255.0f);\n");
WRITE(p, "cc2 = frac(c2 * (255.0f/256.0f)) * (256.0f/255.0f);\n");
RegisterStates[3].AlphaNeedOverflowControl = false;
RegisterStates[3].ColorNeedOverflowControl = false;
}
@ -1340,10 +1340,15 @@ static void WriteFog(char *&p)
WRITE (p, " float ze = "I_FOG"[1].x * zCoord;\n");
}
// stuff to do!
// here, where we'll have to add/handle x range adjustment (if related BP register it's enabled)
// x_adjust = sqrt((x-center)^2 + k^2)/k
// ze *= x_adjust
//this is complitly teorical as the real hard seems to use a table intead of calculate the values.
if(bpmem.fogRange.Base.Enabled)
{
WRITE (p, " float x_adjust = (2.0f * (clipPos.x / "I_FOG"[2].y)) - 1.0f - "I_FOG"[2].x;\n");
WRITE (p, " x_adjust = sqrt(x_adjust * x_adjust + "I_FOG"[2].z * "I_FOG"[2].z) / "I_FOG"[2].z;\n");
WRITE (p, " ze *= x_adjust;\n");
}
WRITE (p, " float fog = saturate(ze - "I_FOG"[1].z);\n");
@ -1359,4 +1364,5 @@ static void WriteFog(char *&p)
WRITE(p, " prev.rgb = lerp(prev.rgb,"I_FOG"[0].rgb,fog);\n");
}