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Added support for decal texture blending and toon/highlight shading.

This commit is contained in:
luigi__ 2009-02-10 16:57:52 +00:00
parent f42c529a5a
commit c73cc81494
1 changed files with 33 additions and 5 deletions
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34
desmume/src/rasterize.cpp
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@ -46,6 +46,7 @@ template<typename T> T _max(T a, T b, T c) { return max(max(a,b),c); }
static int polynum; static int polynum;
static u8 modulate_table[32][32]; static u8 modulate_table[32][32];
static u8 decal_table[32][32][32];
//----texture cache--- //----texture cache---
@ -292,11 +293,33 @@ struct Shader
//dst.color.components.a = 31; //dst.color.components.a = 31;
break; break;
case 1: //decal case 1: //decal
case 2:
u = invu/invw; u = invu/invw;
v = invv/invw; v = invv/invw;
texColor = sampler.sample(u,v); texColor = sampler.sample(u,v);
dst.color = texColor; dst.color.components.r = decal_table[texColor.components.a][texColor.components.r][materialColor.components.r];
dst.color.components.g = decal_table[texColor.components.a][texColor.components.g][materialColor.components.g];
dst.color.components.b = decal_table[texColor.components.a][texColor.components.b][materialColor.components.b];
dst.color.components.a = materialColor.components.a;
break;
case 2: //toon/highlight shading
u = invu/invw;
v = invv/invw;
texColor = sampler.sample(u,v);
u32 toonColorVal; toonColorVal = gfx3d.rgbToonTable[materialColor.components.r];
Fragment::Color toonColor;
toonColor.components.r = ((toonColorVal & 0x0000FF) >> 3);
toonColor.components.g = ((toonColorVal & 0x00FF00) >> 11);
toonColor.components.b = ((toonColorVal & 0xFF0000) >> 19);
dst.color.components.r = modulate_table[texColor.components.r][toonColor.components.r];
dst.color.components.g = modulate_table[texColor.components.g][toonColor.components.g];
dst.color.components.b = modulate_table[texColor.components.b][toonColor.components.b];
dst.color.components.a = modulate_table[texColor.components.a][materialColor.components.a];
if(gfx3d.shading == GFX3D::HIGHLIGHT)
{
dst.color.components.r = min<u8>(31, (dst.color.components.r + toonColor.components.r));
dst.color.components.g = min<u8>(31, (dst.color.components.g + toonColor.components.g));
dst.color.components.b = min<u8>(31, (dst.color.components.b + toonColor.components.b));
}
break; break;
case 3: //shadows case 3: //shadows
//is this right? only with the material color? //is this right? only with the material color?
@ -631,8 +654,14 @@ static void triangle_from_devmaster()
static char SoftRastInit(void) static char SoftRastInit(void)
{ {
for(int i=0;i<32;i++) for(int i=0;i<32;i++)
{
for(int j=0;j<32;j++) for(int j=0;j<32;j++)
{
modulate_table[i][j] = ((i+1) * (j+1) - 1) >> 5; modulate_table[i][j] = ((i+1) * (j+1) - 1) >> 5;
for(int a=0;a<32;a++)
decal_table[a][i][j] = ((i*a) + (j*(31-a))) >> 5;
}
}
TexCache_Reset(); TexCache_Reset();
TexCache_BindTexture = BindTexture; TexCache_BindTexture = BindTexture;
@ -832,7 +861,6 @@ static void clipPoly(POLY* poly)
clipPolyVsPlane(2, 1); clipPolyVsPlane(2, 1);
//TODO - we need to parameterize back plane clipping //TODO - we need to parameterize back plane clipping
if(tempClippedPoly.type < 3) if(tempClippedPoly.type < 3)
{ {
//a totally clipped poly. discard it. //a totally clipped poly. discard it.