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- Fixed: 3D hardware texture filling did not copy pixels with 0 alpha,

Browse source 
preserving whatever was underneath in the texture box previously.


SVN r976 (trunk)
This commit is contained in:
Randy Heit 2008-05-16 23:36:47 +00:00
parent a4da6f1ac1
commit 32557c4a28
4 changed files with 52 additions and 13 deletions
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2
docs/rh-log.txt
View file

@ -1,4 +1,6 @@
May 16, 2008
- Fixed: 3D hardware texture filling did not copy pixels with 0 alpha,
preserving whatever was underneath in the texture box previously.
- Fixed: s_sound.cpp had its own idea of whether or not sounds were paused
and did not entirely keep it in sync with the sound system's. This meant
that when starting a new game from the menu, all sounds were played as

43
src/textures/bitmap.cpp
View file

@ -57,7 +57,8 @@ void iCopyColors(BYTE *pout, const BYTE *pin, int count, int step, FCopyInfo *in
case BLEND_NONE:
for(i=0;i<count;i++)
{
if ((a = TSrc::A(pin)))
a = TSrc::A(pin);
if (TBlend::ProcessAlpha0() || a)
{
TBlend::OpC(pout[TDest::RED], TSrc::R(pin), a, inf);
TBlend::OpC(pout[TDest::GREEN], TSrc::G(pin), a, inf);
@ -73,7 +74,8 @@ void iCopyColors(BYTE *pout, const BYTE *pin, int count, int step, FCopyInfo *in
// Doom's inverted invulnerability map
for(i=0;i<count;i++)
{
if ((a = TSrc::A(pin)))
a = TSrc::A(pin);
if (TBlend::ProcessAlpha0() || a)
{
gray = clamp<int>(255 - TSrc::Gray(pin),0,255);
@ -91,7 +93,8 @@ void iCopyColors(BYTE *pout, const BYTE *pin, int count, int step, FCopyInfo *in
// Heretic's golden invulnerability map
for(i=0;i<count;i++)
{
if ((a = TSrc::A(pin)))
a = TSrc::A(pin);
if (TBlend::ProcessAlpha0() || a)
{
gray = TSrc::Gray(pin);
r=clamp<int>(gray+(gray>>1),0,255);
@ -111,7 +114,8 @@ void iCopyColors(BYTE *pout, const BYTE *pin, int count, int step, FCopyInfo *in
// Skulltag's red Doomsphere map
for(i=0;i<count;i++)
{
if ((a = TSrc::A(pin)))
a = TSrc::A(pin);
if (TBlend::ProcessAlpha0() || a)
{
gray = TSrc::Gray(pin);
r=clamp<int>(gray+(gray>>1),0,255);
@ -130,7 +134,8 @@ void iCopyColors(BYTE *pout, const BYTE *pin, int count, int step, FCopyInfo *in
// Skulltags's Guardsphere map
for(i=0;i<count;i++)
{
if ((a = TSrc::A(pin)))
a = TSrc::A(pin);
if (TBlend::ProcessAlpha0() || a)
{
gray = TSrc::Gray(pin);
r=clamp<int>(gray+(gray>>1),0,255);
@ -150,7 +155,8 @@ void iCopyColors(BYTE *pout, const BYTE *pin, int count, int step, FCopyInfo *in
// Since this is done in True Color the purplish tint is fully preserved - even in Doom!
for(i=0;i<count;i++)
{
if ((a = TSrc::A(pin)))
a = TSrc::A(pin);
if (TBlend::ProcessAlpha0() || a)
{
int gray = TSrc::Gray(pin)>>4;
@ -171,7 +177,8 @@ void iCopyColors(BYTE *pout, const BYTE *pin, int count, int step, FCopyInfo *in
fac=inf->blend-BLEND_DESATURATE1+1;
for(i=0;i<count;i++)
{
if ((a = TSrc::A(pin)))
a = TSrc::A(pin);
if (TBlend::ProcessAlpha0() || a)
{
gray = TSrc::Gray(pin);
r = (TSrc::R(pin)*(31-fac) + gray*fac)/31;
@ -192,7 +199,8 @@ void iCopyColors(BYTE *pout, const BYTE *pin, int count, int step, FCopyInfo *in
case BLEND_MODULATE:
for(i=0;i<count;i++)
{
if ((a = TSrc::A(pin)))
a = TSrc::A(pin);
if (TBlend::ProcessAlpha0() || a)
{
r = (TSrc::R(pin)*inf->blendcolor[0])>>FRACBITS;
g = (TSrc::G(pin)*inf->blendcolor[1])>>FRACBITS;
@ -212,7 +220,8 @@ void iCopyColors(BYTE *pout, const BYTE *pin, int count, int step, FCopyInfo *in
for(i=0;i<count;i++)
{
// color blend
if ((a = TSrc::A(pin)))
a = TSrc::A(pin);
if (TBlend::ProcessAlpha0() || a)
{
r = (TSrc::R(pin)*inf->blendcolor[3] + inf->blendcolor[0]) >> FRACBITS;
g = (TSrc::G(pin)*inf->blendcolor[3] + inf->blendcolor[1]) >> FRACBITS;
@ -311,6 +320,17 @@ static const CopyFunc copyfuncs[][9]={
iCopyColors<cRGB555, cBGRA, bCopyAlpha>,
iCopyColors<cPalEntry, cBGRA, bCopyAlpha>
},
{
iCopyColors<cRGB, cBGRA, bOverwrite>,
iCopyColors<cRGBA, cBGRA, bOverwrite>,
iCopyColors<cIA, cBGRA, bOverwrite>,
iCopyColors<cCMYK, cBGRA, bOverwrite>,
iCopyColors<cBGR, cBGRA, bOverwrite>,
iCopyColors<cBGRA, cBGRA, bOverwrite>,
iCopyColors<cI16, cBGRA, bOverwrite>,
iCopyColors<cRGB555, cBGRA, bOverwrite>,
iCopyColors<cPalEntry, cBGRA, bOverwrite>
},
};
//===========================================================================
@ -461,9 +481,9 @@ void iCopyPaletted(BYTE *buffer, const BYTE * patch, int srcwidth, int srcheight
for (x=0;x<srcwidth;x++,pos+=4)
{
int v=(unsigned char)patch[y*step_y+x*step_x];
int a;
int a = palette[v].a;
if ((a = palette[v].a))
if (TBlend::ProcessAlpha0() || a)
{
TBlend::OpC(buffer[pos + TDest::RED], palette[v].r, a, inf);
TBlend::OpC(buffer[pos + TDest::GREEN], palette[v].g, a, inf);
@ -487,6 +507,7 @@ static const CopyPalettedFunc copypalettedfuncs[]=
iCopyPaletted<cBGRA, bReverseSubtract>,
iCopyPaletted<cBGRA, bModulate>,
iCopyPaletted<cBGRA, bCopyAlpha>,
iCopyPaletted<cBGRA, bOverwrite>
};
//===========================================================================

17
src/textures/bitmap.h
View file

@ -281,7 +281,8 @@ enum ECopyOp
OP_SUBTRACT,
OP_REVERSESUBTRACT,
OP_MODULATE,
OP_COPYALPHA
OP_COPYALPHA,
OP_OVERWRITE
};
struct FCopyInfo
@ -297,42 +298,56 @@ struct bCopy
{
static __forceinline void OpC(BYTE &d, BYTE s, BYTE a, FCopyInfo *i) { d = s; }
static __forceinline void OpA(BYTE &d, BYTE s, FCopyInfo *i) { d = s; }
static __forceinline bool ProcessAlpha0() { return false; }
};
struct bOverwrite
{
static __forceinline void OpC(BYTE &d, BYTE s, BYTE a, FCopyInfo *i) { d = s; }
static __forceinline void OpA(BYTE &d, BYTE s, FCopyInfo *i) { d = s; }
static __forceinline bool ProcessAlpha0() { return true; }
};
struct bBlend
{
static __forceinline void OpC(BYTE &d, BYTE s, BYTE a, FCopyInfo *i) { d = (d*i->invalpha + s*i->alpha) >> FRACBITS; }
static __forceinline void OpA(BYTE &d, BYTE s, FCopyInfo *i) { d = s; }
static __forceinline bool ProcessAlpha0() { return true; }
};
struct bAdd
{
static __forceinline void OpC(BYTE &d, BYTE s, BYTE a, FCopyInfo *i) { d = MIN<int>((d*FRACUNIT + s*i->alpha) >> FRACBITS, 255); }
static __forceinline void OpA(BYTE &d, BYTE s, FCopyInfo *i) { d = s; }
static __forceinline bool ProcessAlpha0() { return true; }
};
struct bSubtract
{
static __forceinline void OpC(BYTE &d, BYTE s, BYTE a, FCopyInfo *i) { d = MAX<int>((d*FRACUNIT - s*i->alpha) >> FRACBITS, 0); }
static __forceinline void OpA(BYTE &d, BYTE s, FCopyInfo *i) { d = s; }
static __forceinline bool ProcessAlpha0() { return true; }
};
struct bReverseSubtract
{
static __forceinline void OpC(BYTE &d, BYTE s, BYTE a, FCopyInfo *i) { d = MAX<int>((-d*FRACUNIT + s*i->alpha) >> FRACBITS, 0); }
static __forceinline void OpA(BYTE &d, BYTE s, FCopyInfo *i) { d = s; }
static __forceinline bool ProcessAlpha0() { return true; }
};
struct bModulate
{
static __forceinline void OpC(BYTE &d, BYTE s, BYTE a, FCopyInfo *i) { d = (s*d)/255; }
static __forceinline void OpA(BYTE &d, BYTE s, FCopyInfo *i) { d = s; }
static __forceinline bool ProcessAlpha0() { return true; }
};
struct bCopyAlpha
{
static __forceinline void OpC(BYTE &d, BYTE s, BYTE a, FCopyInfo *i) { d = (s*a + d*(255-a))/255; }
static __forceinline void OpA(BYTE &d, BYTE s, FCopyInfo *i) { d = s; }
static __forceinline bool ProcessAlpha0() { return true; }
};

3
src/textures/texture.cpp
View file

@ -458,8 +458,9 @@ void FTexture::FillBuffer(BYTE *buff, int pitch, int height, FTextureFormat fmt)
case TEX_RGB:
{
FCopyInfo inf = {OP_OVERWRITE, };
FBitmap bmp(buff, pitch, pitch/4, height);
CopyTrueColorPixels(&bmp, 0, 0);
CopyTrueColorPixels(&bmp, 0, 0, 0, &inf);
break;
}