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TINYGL: Encapsulated pixel access in FrameBuffer class, provided an implementation of glBlendFunc.

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This commit is contained in:
Stefano Musumeci 2014-06-18 00:14:55 +02:00
parent 10c25d49d4
commit 03072c4b7b
5 changed files with 286 additions and 85 deletions
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4
graphics/tinygl/misc.cpp
View file

@ -63,6 +63,7 @@ void glopEnableDisable(GLContext *c, GLParam *p) {
break; break;
case TGL_BLEND: case TGL_BLEND:
c->enable_blend = v; c->enable_blend = v;
c->fb->enableBlending(v);
break; break;
case TGL_POLYGON_OFFSET_FILL: case TGL_POLYGON_OFFSET_FILL:
if (v) if (v)
@ -105,6 +106,9 @@ void glopEnableDisable(GLContext *c, GLParam *p) {
} }
void glopBlendFunc(GLContext *c, GLParam *p) { void glopBlendFunc(GLContext *c, GLParam *p) {
TGLenum sfactor = p[1].i;
TGLenum dfactor = p[2].i;
c->fb->setBlendingFactors(sfactor,dfactor);
} }
void glopShadeModel(GLContext *c, GLParam *p) { void glopShadeModel(GLContext *c, GLParam *p) {

10
graphics/tinygl/zbuffer.cpp
View file

@ -85,6 +85,7 @@ FrameBuffer::FrameBuffer(int width, int height, const Graphics::PixelBuffer &fra
this->buffer.pbuf = this->pbuf.getRawBuffer(); this->buffer.pbuf = this->pbuf.getRawBuffer();
this->buffer.zbuf = this->zbuf; this->buffer.zbuf = this->zbuf;
_blendingEnabled = false;
} }
FrameBuffer::~FrameBuffer() { FrameBuffer::~FrameBuffer() {
@ -161,4 +162,13 @@ void FrameBuffer::setTexture(const Graphics::PixelBuffer &texture) {
current_texture = texture; current_texture = texture;
} }
void FrameBuffer::setBlendingFactors( int sfactor, int dfactor ) {
_sourceBlendingFactor = sfactor;
_destinationBlendingFactor = dfactor;
}
void FrameBuffer::enableBlending(bool enableBlending) {
_blendingEnabled = enableBlending;
}
} // end of namespace TinyGL } // end of namespace TinyGL

204
graphics/tinygl/zbuffer.h
View file

@ -2,6 +2,7 @@
#define GRAPHICS_TINYGL_ZBUFFER_H_ #define GRAPHICS_TINYGL_ZBUFFER_H_
#include "graphics/pixelbuffer.h" #include "graphics/pixelbuffer.h"
#include "graphics/tinygl/gl.h"
namespace TinyGL { namespace TinyGL {
@ -55,8 +56,203 @@ struct FrameBuffer {
void delOffscreenBuffer(Buffer *buffer); void delOffscreenBuffer(Buffer *buffer);
void clear(int clear_z, int z, int clear_color, int r, int g, int b); void clear(int clear_z, int z, int clear_color, int r, int g, int b);
void writePixel(int pixel, int value); FORCEINLINE void writePixel(int pixel, int value) {
void writePixel(int pixel, byte r, byte g, byte b); if (_blendingEnabled == false) {
this->pbuf.setPixelAt(pixel,value);
} else {
byte rSrc, gSrc, bSrc, aSrc;
byte rDst, gDst, bDst, aDst;
this->pbuf.getFormat().colorToARGB(value, aDst, rDst, gDst, bDst);
switch (_sourceBlendingFactor) {
case TGL_ZERO:
rSrc = gSrc = bSrc = 0;
break;
case TGL_ONE:
this->pbuf.getRGBAt(pixel, rSrc, gSrc, bSrc);
break;
case TGL_DST_COLOR:
this->pbuf.getRGBAt(pixel, rSrc, gSrc, bSrc);
rSrc = (rSrc * rDst) >> 8;
gSrc = (gSrc * gDst) >> 8;
bSrc = (bSrc * bDst) >> 8;
break;
case TGL_ONE_MINUS_DST_COLOR:
this->pbuf.getRGBAt(pixel, rSrc, gSrc, bSrc);
rSrc = (rSrc * (255 - rDst)) >> 8;
gSrc = (gSrc * (255 - gDst)) >> 8;
bSrc = (bSrc * (255 - bDst)) >> 8;
break;
case TGL_SRC_ALPHA:
this->pbuf.getARGBAt(pixel, aSrc, rSrc, gSrc, bSrc);
rSrc = (rSrc * aSrc) >> 8;
gSrc = (gSrc * aSrc) >> 8;
bSrc = (bSrc * aSrc) >> 8;
break;
case TGL_ONE_MINUS_SRC_ALPHA:
this->pbuf.getARGBAt(pixel, aSrc, rSrc, gSrc, bSrc);
rSrc = (rSrc * (255 - aSrc)) >> 8;
gSrc = (gSrc * (255 - aSrc)) >> 8;
bSrc = (bSrc * (255 - aSrc)) >> 8;
break;
case TGL_DST_ALPHA:
this->pbuf.getRGBAt(pixel, rSrc, gSrc, bSrc);
rSrc = (rSrc * aDst) >> 8;
gSrc = (gSrc * aDst) >> 8;
bSrc = (bSrc * aDst) >> 8;
break;
case TGL_ONE_MINUS_DST_ALPHA:
rSrc = (rSrc * (1 - aDst)) >> 8;
gSrc = (gSrc * (1 - aDst)) >> 8;
bSrc = (bSrc * (1 - aDst)) >> 8;
break;
case TGL_SRC_ALPHA_SATURATE: {
int factor = aDst < 1 - aSrc ? aDst : 1 - aSrc;
rSrc = (rSrc * factor) >> 8;
gSrc = (gSrc * factor) >> 8;
bSrc = (bSrc * factor) >> 8;
}
break;
default:
break;
}
switch (_destinationBlendingFactor) {
case TGL_ZERO:
rDst = gDst = bDst = 0;
break;
case TGL_ONE:
break;
case TGL_SRC_COLOR:
this->pbuf.getRGBAt(pixel, rSrc, gSrc, bSrc);
rDst = (rSrc * rDst) >> 8;
gDst = (gSrc * gDst) >> 8;
bDst = (bSrc * bDst) >> 8;
break;
case TGL_ONE_MINUS_SRC_COLOR:
this->pbuf.getRGBAt(pixel, rSrc, gSrc, bSrc);
rDst = (rDst * (255 - rSrc)) >> 8;
gDst = (gDst * (255 - gSrc)) >> 8;
bDst = (bDst * (255 - bSrc)) >> 8;
break;
case TGL_SRC_ALPHA:
this->pbuf.getARGBAt(pixel, aSrc, rSrc, gSrc, bSrc);
rDst = (rDst * aSrc) >> 8;
gDst = (gDst * aSrc) >> 8;
bDst = (bDst * aSrc) >> 8;
break;
case TGL_ONE_MINUS_SRC_ALPHA:
this->pbuf.getARGBAt(pixel, aSrc, rSrc, gSrc, bSrc);
rDst = (rDst * (255 - aSrc)) >> 8;
gDst = (gDst * (255 - aSrc)) >> 8;
bDst = (bDst * (255 - aSrc)) >> 8;
break;
case TGL_DST_ALPHA:
rDst = (rDst * aDst) >> 8;
gDst = (gDst * aDst) >> 8;
bDst = (bDst * aDst) >> 8;
break;
case TGL_ONE_MINUS_DST_ALPHA:
rDst = (rDst * (255 - aDst)) >> 8;
gDst = (gDst * (255 - aDst)) >> 8;
bDst = (bDst * (255 - aDst)) >> 8;
break;
default:
break;
}
this->pbuf.setPixelAt(pixel,255,rSrc + rDst,gSrc + gDst,bSrc + bDst);
}
}
FORCEINLINE void writePixel(int pixel, byte rDst, byte gDst, byte bDst) {
if (_blendingEnabled == false) {
this->pbuf.setPixelAt(pixel,255,rDst,gDst,bDst);
} else {
byte rSrc, gSrc, bSrc, aSrc;
switch (_sourceBlendingFactor) {
case TGL_ZERO:
rSrc = gSrc = bSrc = 0;
break;
case TGL_ONE:
this->pbuf.getRGBAt(pixel, rSrc, gSrc, bSrc);
break;
case TGL_DST_COLOR:
this->pbuf.getRGBAt(pixel, rSrc, gSrc, bSrc);
rSrc = (rSrc * rDst) >> 8;
gSrc = (gSrc * gDst) >> 8;
bSrc = (bSrc * bDst) >> 8;
break;
case TGL_ONE_MINUS_DST_COLOR:
this->pbuf.getRGBAt(pixel, rSrc, gSrc, bSrc);
rSrc = (rSrc * (255 - rDst)) >> 8;
gSrc = (gSrc * (255 - gDst)) >> 8;
bSrc = (bSrc * (255 - bDst)) >> 8;
break;
case TGL_SRC_ALPHA:
this->pbuf.getARGBAt(pixel, aSrc, rSrc, gSrc, bSrc);
rSrc = (rSrc * aSrc) >> 8;
gSrc = (gSrc * aSrc) >> 8;
bSrc = (bSrc * aSrc) >> 8;
break;
case TGL_ONE_MINUS_SRC_ALPHA:
this->pbuf.getARGBAt(pixel, aSrc, rSrc, gSrc, bSrc);
rSrc = (rSrc * (255 - aSrc)) >> 8;
gSrc = (gSrc * (255 - aSrc)) >> 8;
bSrc = (bSrc * (255 - aSrc)) >> 8;
break;
case TGL_DST_ALPHA:
this->pbuf.getRGBAt(pixel, rSrc, gSrc, bSrc);
break;
case TGL_ONE_MINUS_DST_ALPHA:
rSrc = gSrc = bSrc = 0;
break;
case TGL_SRC_ALPHA_SATURATE: // Still not sure
break;
default:
break;
}
switch (_destinationBlendingFactor) {
case TGL_ZERO:
rDst = gDst = bDst = 0;
break;
case TGL_ONE:
break;
case TGL_SRC_COLOR:
this->pbuf.getRGBAt(pixel, rSrc, gSrc, bSrc);
rDst = (rSrc * rDst) >> 8;
gDst = (gSrc * gDst) >> 8;
bDst = (bSrc * bDst) >> 8;
break;
case TGL_ONE_MINUS_SRC_COLOR:
this->pbuf.getRGBAt(pixel, rSrc, gSrc, bSrc);
rDst = (rDst * (255 - rSrc)) >> 8;
gDst = (gDst * (255 - gSrc)) >> 8;
bDst = (bDst * (255 - bSrc)) >> 8;
break;
case TGL_SRC_ALPHA:
this->pbuf.getARGBAt(pixel, aSrc, rSrc, gSrc, bSrc);
rDst = (rDst * aSrc) >> 8;
gDst = (gDst * aSrc) >> 8;
bDst = (bDst * aSrc) >> 8;
break;
case TGL_ONE_MINUS_SRC_ALPHA:
this->pbuf.getARGBAt(pixel, aSrc, rSrc, gSrc, bSrc);
rDst = (rDst * (255 - aSrc)) >> 8;
gDst = (gDst * (255 - aSrc)) >> 8;
bDst = (bDst * (255 - aSrc)) >> 8;
break;
case TGL_DST_ALPHA:
break;
case TGL_ONE_MINUS_DST_ALPHA:
rDst = gDst = bDst = 0;
break;
default:
break;
}
this->pbuf.setPixelAt(pixel,255,rSrc + rDst,gSrc + gDst,bSrc + bDst);
}
}
void enableBlending(bool enableBlending);
void setBlendingFactors(int sfactor, int dfactor);
/** /**
* Blit the buffer to the screen buffer, checking the depth of the pixels. * Blit the buffer to the screen buffer, checking the depth of the pixels.
@ -109,6 +305,10 @@ struct FrameBuffer {
int *ctable; int *ctable;
Graphics::PixelBuffer current_texture; Graphics::PixelBuffer current_texture;
Graphics::PixelBuffer pbuf; Graphics::PixelBuffer pbuf;
private:
bool _blendingEnabled;
int _sourceBlendingFactor;
int _destinationBlendingFactor;
}; };
// memory.c // memory.c

49
graphics/tinygl/zline.cpp
View file

@ -6,32 +6,30 @@ namespace TinyGL {
#define ZCMP(z,zpix) ((z) >= (zpix)) #define ZCMP(z,zpix) ((z) >= (zpix))
template <bool interpRGB, bool interpZ> template <bool interpRGB, bool interpZ>
FORCEINLINE static void putPixel(PIXEL *pp, const Graphics::PixelFormat &cmode, unsigned int *pz, FORCEINLINE static void putPixel(FrameBuffer *buffer, int pixelOffset, const Graphics::PixelFormat &cmode, unsigned int *pz, unsigned int &z, int &color, unsigned int &r, unsigned int &g, unsigned int &b) {
unsigned int &z, int &color, unsigned int &r, unsigned int &g, unsigned int &b) {
if (interpZ) { if (interpZ) {
if (ZCMP(z, *pz)) { if (ZCMP(z, *pz)) {
if (interpRGB) { if (interpRGB) {
*pp = RGB_TO_PIXEL(r >> 8, g >> 8, b >> 8); buffer->writePixel(pixelOffset,RGB_TO_PIXEL(r >> 8,g >> 8,b >> 8));
} }
else { else {
*pp = color; buffer->writePixel(pixelOffset,color);
} }
*pz = z; *pz = z;
} }
} }
else { else {
if (interpRGB) { if (interpRGB) {
*pp = RGB_TO_PIXEL(r >> 8, g >> 8, b >> 8); buffer->writePixel(pixelOffset,RGB_TO_PIXEL(r >> 8,g >> 8,b >> 8));
} }
else { else {
*pp = color; buffer->writePixel(pixelOffset,color);
} }
} }
} }
template <bool interpRGB, bool interpZ> FORCEINLINE static void drawLine(ZBufferPoint *p1, ZBufferPoint *p2, PIXEL *pp, template <bool interpRGB, bool interpZ>
const Graphics::PixelFormat &cmode, unsigned int *pz, unsigned int &z, int &color, FORCEINLINE static void drawLine(FrameBuffer *buffer, ZBufferPoint *p1, ZBufferPoint *p2, int &pixelOffset, const Graphics::PixelFormat &cmode, unsigned int *pz, unsigned int &z, int &color, unsigned int &r, unsigned int &g, unsigned int &b, int dx, int dy, int inc_1, int inc_2) {
unsigned int &r, unsigned int &g, unsigned int &b, int dx, int dy, int inc_1, int inc_2) {
int n = dx; int n = dx;
int rinc, ginc, binc; int rinc, ginc, binc;
int zinc; int zinc;
@ -46,10 +44,10 @@ template <bool interpRGB, bool interpZ> FORCEINLINE static void drawLine(ZBuffer
int a = 2 * dy - dx; int a = 2 * dy - dx;
dy = 2 * dy; dy = 2 * dy;
dx = 2 * dx - dy; dx = 2 * dx - dy;
int pp_inc_1 = (inc_1) * PSZB; int pp_inc_1 = (inc_1);
int pp_inc_2 = (inc_2) * PSZB; int pp_inc_2 = (inc_2);
do { do {
putPixel<interpRGB, interpZ>(pp, cmode, pz, z, color, r, g, b); putPixel<interpRGB,interpZ>(buffer, pixelOffset, cmode, pz, z, color, r, g, b);
if (interpZ) { if (interpZ) {
z += zinc; z += zinc;
} }
@ -59,13 +57,13 @@ template <bool interpRGB, bool interpZ> FORCEINLINE static void drawLine(ZBuffer
b += binc; b += binc;
} }
if (a > 0) { if (a > 0) {
pp = (PIXEL *)((char *)pp + pp_inc_1); pixelOffset += pp_inc_1;
if (interpZ) { if (interpZ) {
pz += inc_1; pz += inc_1;
} }
a -= dx; a -= dx;
} else { } else {
pp = (PIXEL *)((char *)pp + pp_inc_2); pixelOffset += pp_inc_2;
if (interpZ) { if (interpZ) {
pz += inc_2; pz += inc_2;
} }
@ -74,12 +72,13 @@ template <bool interpRGB, bool interpZ> FORCEINLINE static void drawLine(ZBuffer
} while (--n >= 0); } while (--n >= 0);
} }
template <bool interpRGB, bool interpZ> void FrameBuffer::fillLine(ZBufferPoint *p1, ZBufferPoint *p2, int color) { template <bool interpRGB, bool interpZ>
int dx, dy, sx; void FrameBuffer::fillLine(ZBufferPoint *p1, ZBufferPoint *p2, int color) {
PIXEL *pp; int dx, dy, sx, pp;
unsigned int r, g, b; unsigned int r, g, b;
unsigned int *pz = NULL; unsigned int *pz = NULL;
unsigned int z; unsigned int z;
int pixelOffset;
if (p1->y > p2->y || (p1->y == p2->y && p1->x > p2->x)) { if (p1->y > p2->y || (p1->y == p2->y && p1->x > p2->x)) {
ZBufferPoint *tmp; ZBufferPoint *tmp;
@ -88,7 +87,7 @@ template <bool interpRGB, bool interpZ> void FrameBuffer::fillLine(ZBufferPoint
p2 = tmp; p2 = tmp;
} }
sx = xsize; sx = xsize;
pp = (PIXEL *)((char *)pbuf.getRawBuffer() + linesize * p1->y + p1->x * PSZB); pixelOffset = xsize * p1->y + p1->x;
if (interpZ) { if (interpZ) {
pz = zbuf + (p1->y * sx + p1->x); pz = zbuf + (p1->y * sx + p1->x);
z = p1->z; z = p1->z;
@ -102,33 +101,31 @@ template <bool interpRGB, bool interpZ> void FrameBuffer::fillLine(ZBufferPoint
} }
if (dx == 0 && dy == 0) { if (dx == 0 && dy == 0) {
putPixel<interpRGB,interpZ>(pp, cmode, pz, z, color, r, g, b); putPixel<interpRGB,interpZ>(this, pixelOffset, cmode, pz, z, color, r, g, b);
} else if (dx > 0) { } else if (dx > 0) {
if (dx >= dy) { if (dx >= dy) {
drawLine<interpRGB, interpZ>(p1, p2, pp, cmode, pz, z, color, r, g, b, dx, dy, sx + 1, 1); drawLine<interpRGB,interpZ>(this, p1, p2, pixelOffset, cmode, pz, z, color, r, g, b, dx, dy, sx + 1, 1);
} else { } else {
drawLine<interpRGB, interpZ>(p1, p2, pp, cmode, pz, z, color, r, g, b, dx, dy, sx + 1, sx); drawLine<interpRGB,interpZ>(this, p1, p2, pixelOffset, cmode, pz, z, color, r, g, b, dx, dy, sx + 1, sx);
} }
} else { } else {
dx = -dx; dx = -dx;
if (dx >= dy) { if (dx >= dy) {
drawLine<interpRGB, interpZ>(p1, p2, pp, cmode, pz, z, color, r, g, b, dx, dy, sx - 1, -1); drawLine<interpRGB,interpZ>(this, p1, p2, pixelOffset, cmode, pz, z, color, r, g, b, dx, dy, sx - 1, -1);
} else { } else {
drawLine<interpRGB, interpZ>(p1, p2, pp, cmode, pz, z, color, r, g, b, dx, dy, sx - 1, sx); drawLine<interpRGB,interpZ>(this, p1, p2, pixelOffset, cmode, pz, z, color, r, g, b, dx, dy, sx - 1, sx);
} }
} }
} }
void FrameBuffer::plot(ZBufferPoint *p) { void FrameBuffer::plot(ZBufferPoint *p) {
unsigned int *pz; unsigned int *pz;
PIXEL *pp;
pz = zbuf + (p->y * xsize + p->x); pz = zbuf + (p->y * xsize + p->x);
pp = (PIXEL *)((char *) pbuf.getRawBuffer() + linesize * p->y + p->x * PSZB);
unsigned int r, g, b; unsigned int r, g, b;
int col = RGB_TO_PIXEL(p->r, p->g, p->b); int col = RGB_TO_PIXEL(p->r, p->g, p->b);
unsigned int z = p->z; unsigned int z = p->z;
putPixel<false, true>(pp, cmode, pz, z, col, r, g, b); putPixel<false, true>(this, linesize * p->y + p->x * PSZB, cmode, pz, z, col, r, g, b);
} }
void FrameBuffer::fillLineFlatZ(ZBufferPoint *p1, ZBufferPoint *p2, int color) { void FrameBuffer::fillLineFlatZ(ZBufferPoint *p1, ZBufferPoint *p2, int color) {

102
graphics/tinygl/ztriangle.cpp
View file

@ -18,10 +18,9 @@ static const int NB_INTERP = 8;
#define SAR_RND_TO_ZERO(v,n) (v / (1 << n)) #define SAR_RND_TO_ZERO(v,n) (v / (1 << n))
FORCEINLINE static void putPixelMapping(PIXEL *pp, unsigned int *pz, Graphics::PixelBuffer &texture, FORCEINLINE static void putPixelMapping(FrameBuffer *buffer, int buf, unsigned int *pz, Graphics::PixelBuffer &texture, int _a, unsigned int &z, unsigned int &t, unsigned int &s, int &dzdx, int &dsdx, int &dtdx) {
int _a, unsigned int &z, unsigned int &t, unsigned int &s, int &dzdx, int &dsdx, int &dtdx) {
if (ZCMP(z, pz[_a])) { if (ZCMP(z, pz[_a])) {
pp[_a] = texture.getRawBuffer()[((t & 0x3FC00000) | s) >> 14]; buffer->writePixel(buf + _a, texture.getRawBuffer()[((t & 0x3FC00000) | s) >> 14]);
pz[_a] = z; pz[_a] = z;
} }
z += dzdx; z += dzdx;
@ -29,10 +28,9 @@ FORCEINLINE static void putPixelMapping(PIXEL *pp, unsigned int *pz, Graphics::P
t += dtdx; t += dtdx;
} }
FORCEINLINE static void putPixelFlat(PIXEL *pp, unsigned int *pz, int _a, unsigned int &z, FORCEINLINE static void putPixelFlat(FrameBuffer *buffer, int buf, unsigned int *pz, int _a, unsigned int &z, int color, int &dzdx) {
int color, int &dzdx) {
if (ZCMP(z, pz[_a])) { if (ZCMP(z, pz[_a])) {
pp[_a] = color; buffer->writePixel(buf + _a, color);
pz[_a] = z; pz[_a] = z;
} }
z += dzdx; z += dzdx;
@ -45,21 +43,17 @@ FORCEINLINE static void putPixelDepth(unsigned int *pz, int _a, unsigned int &z,
z += dzdx; z += dzdx;
} }
FORCEINLINE static void putPixelSmooth(Graphics::PixelBuffer &buf, unsigned int *pz, int _a, FORCEINLINE static void putPixelSmooth(FrameBuffer *buffer, int buf, unsigned int *pz, int _a, unsigned int &z, int &tmp, unsigned int &rgb, int &dzdx, unsigned int &drgbdx) {
unsigned int &z, int &tmp, unsigned int &rgb, int &dzdx, unsigned int &drgbdx) {
if (ZCMP(z, pz[_a])) { if (ZCMP(z, pz[_a])) {
tmp = rgb & 0xF81F07E0; tmp = rgb & 0xF81F07E0;
buf.setPixelAt(_a, tmp | (tmp >> 16)); buffer->writePixel(buf + _a,tmp | (tmp >> 16));
pz[_a] = z; pz[_a] = z;
} }
z += dzdx; z += dzdx;
rgb = (rgb + drgbdx) & (~0x00200800); rgb = (rgb + drgbdx) & (~0x00200800);
} }
FORCEINLINE static void putPixelMappingPerspective(Graphics::PixelBuffer &buf, FORCEINLINE static void putPixelMappingPerspective(FrameBuffer *buffer, int buf, Graphics::PixelFormat &textureFormat, Graphics::PixelBuffer &texture, unsigned int *pz, int _a, unsigned int &z, unsigned int &t, unsigned int &s, int &tmp, unsigned int &rgb, int &dzdx, int &dsdx, int &dtdx, unsigned int &drgbdx) {
Graphics::PixelFormat &textureFormat, Graphics::PixelBuffer &texture, unsigned int *pz,
int _a, unsigned int &z, unsigned int &t, unsigned int &s, int &tmp, unsigned int &rgb,
int &dzdx, int &dsdx, int &dtdx, unsigned int &drgbdx) {
if (ZCMP(z, pz[_a])) { if (ZCMP(z, pz[_a])) {
unsigned ttt = (t & 0x003FC000) >> (9 - PSZSH); unsigned ttt = (t & 0x003FC000) >> (9 - PSZSH);
unsigned sss = (s & 0x003FC000) >> (17 - PSZSH); unsigned sss = (s & 0x003FC000) >> (17 - PSZSH);
@ -80,7 +74,7 @@ FORCEINLINE static void putPixelMappingPerspective(Graphics::PixelBuffer &buf,
c_r = (c_r * l_r) / 256; c_r = (c_r * l_r) / 256;
c_g = (c_g * l_g) / 256; c_g = (c_g * l_g) / 256;
c_b = (c_b * l_b) / 256; c_b = (c_b * l_b) / 256;
buf.setPixelAt(_a, c_r, c_g, c_b); buffer->writePixel(buf + _a,c_r, c_g, c_b);
pz[_a] = z; pz[_a] = z;
} }
} }
@ -218,7 +212,7 @@ void FrameBuffer::fillTriangle(ZBufferPoint *p0, ZBufferPoint *p1, ZBufferPoint
// screen coordinates // screen coordinates
byte *pp1 = pbuf.getRawBuffer() + linesize * p0->y; int pp1 = xsize * p0->y;
pz1 = zbuf + p0->y * xsize; pz1 = zbuf + p0->y * xsize;
switch (drawLogic) { switch (drawLogic) {
@ -366,14 +360,16 @@ void FrameBuffer::fillTriangle(ZBufferPoint *p0, ZBufferPoint *p1, ZBufferPoint
nb_lines--; nb_lines--;
{ {
switch (drawLogic) { switch (drawLogic) {
case DRAW_DEPTH_ONLY: { case DRAW_DEPTH_ONLY:
PIXEL *pp; case DRAW_FLAT:
case DRAW_MAPPING: {
int pp;
int n; int n;
unsigned int *pz; unsigned int *pz;
unsigned int z; unsigned int z;
unsigned int s, t; unsigned int s, t;
n = (x2 >> 16) - x1; n = (x2 >> 16) - x1;
pp = (PIXEL *)((char *)pp1 + x1 * PSZB); pp = pp1 + x1;
if (interpZ) { if (interpZ) {
pz = pz1 + x1; pz = pz1 + x1;
z = z1; z = z1;
@ -384,27 +380,27 @@ void FrameBuffer::fillTriangle(ZBufferPoint *p0, ZBufferPoint *p1, ZBufferPoint
} }
while (n >= 3) { while (n >= 3) {
if (drawLogic == DRAW_DEPTH_ONLY) { if (drawLogic == DRAW_DEPTH_ONLY) {
putPixelDepth(pz, 0, z ,dzdx); putPixelDepth(pz, 0, z, dzdx);
putPixelDepth(pz, 1, z, dzdx); putPixelDepth(pz, 1, z, dzdx);
putPixelDepth(pz, 2, z, dzdx); putPixelDepth(pz, 2, z, dzdx);
putPixelDepth(pz, 3, z, dzdx); putPixelDepth(pz, 3, z, dzdx);
} }
if (drawLogic == DRAW_FLAT) { if (drawLogic == DRAW_FLAT) {
putPixelFlat(pp, pz, 0, z, color, dzdx); putPixelFlat(this, pp, pz, 0, z, color, dzdx);
putPixelFlat(pp, pz, 1, z, color, dzdx); putPixelFlat(this, pp, pz, 1, z, color, dzdx);
putPixelFlat(pp, pz, 2, z, color, dzdx); putPixelFlat(this, pp, pz, 2, z, color, dzdx);
putPixelFlat(pp, pz, 3, z, color, dzdx); putPixelFlat(this, pp, pz, 3, z, color, dzdx);
} }
if (drawLogic == DRAW_MAPPING) { if (drawLogic == DRAW_MAPPING) {
putPixelMapping(pp, pz, texture, 0, z, t, s, dzdx, dsdx, dtdx); putPixelMapping(this, pp, pz, texture, 0, z, t, s, dzdx, dsdx, dtdx);
putPixelMapping(pp, pz, texture, 1, z, t, s, dzdx, dsdx, dtdx); putPixelMapping(this, pp, pz, texture, 1, z, t, s, dzdx, dsdx, dtdx);
putPixelMapping(pp, pz, texture, 2, z, t, s, dzdx, dsdx, dtdx); putPixelMapping(this, pp, pz, texture, 2, z, t, s, dzdx, dsdx, dtdx);
putPixelMapping(pp, pz, texture, 3, z, t, s, dzdx, dsdx, dtdx); putPixelMapping(this, pp, pz, texture, 3, z, t, s, dzdx, dsdx, dtdx);
} }
if (interpZ) { if (interpZ) {
pz += 4; pz += 4;
} }
pp = (PIXEL *)((char *)pp + 4 * PSZB); pp += 4;
n -= 4; n -= 4;
} }
while (n >= 0) { while (n >= 0) {
@ -412,15 +408,15 @@ void FrameBuffer::fillTriangle(ZBufferPoint *p0, ZBufferPoint *p1, ZBufferPoint
putPixelDepth(pz, 0, z, dzdx); putPixelDepth(pz, 0, z, dzdx);
} }
if (drawLogic == DRAW_FLAT) { if (drawLogic == DRAW_FLAT) {
putPixelFlat(pp, pz, 0, z, color, dzdx); putPixelFlat(this, pp, pz, 0, z, color, dzdx);
} }
if (drawLogic == DRAW_MAPPING) { if (drawLogic == DRAW_MAPPING) {
putPixelMapping(pp, pz, texture, 0, z, t, s, dzdx, dsdx, dtdx); putPixelMapping(this, pp, pz, texture, 0, z, t, s, dzdx, dsdx, dtdx);
} }
if (interpZ) { if (interpZ) {
pz += 1; pz += 1;
} }
pp = (PIXEL *)((char *)pp + PSZB); pp += 1;
n -= 1; n -= 1;
} }
} }
@ -453,8 +449,7 @@ void FrameBuffer::fillTriangle(ZBufferPoint *p0, ZBufferPoint *p1, ZBufferPoint
n = (x2 >> 16) - x1; n = (x2 >> 16) - x1;
Graphics::PixelBuffer buf = pbuf; int buf = pp1 + x1;
buf = pp1 + x1 * PSZB;
pm = pm1 + x1; pm = pm1 + x1;
pz = pz1 + x1; pz = pz1 + x1;
@ -462,36 +457,34 @@ void FrameBuffer::fillTriangle(ZBufferPoint *p0, ZBufferPoint *p1, ZBufferPoint
while (n >= 3) { while (n >= 3) {
for (int a = 0; a < 4; a++) { for (int a = 0; a < 4; a++) {
if (ZCMP(z, pz[a]) && pm[0]) { if (ZCMP(z, pz[a]) && pm[0]) {
buf.setPixelAt(a, color); writePixel(buf + a, color);
pz[a] = z; pz[a] = z;
} }
z += dzdx; z += dzdx;
} }
pz += 4; pz += 4;
pm += 4; pm += 4;
buf.shiftBy(4); buf += 4;
n -= 4; n -= 4;
} }
while (n >= 0) { while (n >= 0) {
if (ZCMP(z, pz[0]) && pm[0]) { if (ZCMP(z, pz[0]) && pm[0]) {
buf.setPixelAt(0, color); writePixel(buf, color);
pz[0] = z; pz[0] = z;
} }
pz += 1; pz += 1;
pm += 1; pm += 1;
buf.shiftBy(1); buf += 1;
n -= 1; n -= 1;
} }
} }
break; break;
case DRAW_SMOOTH: { case DRAW_SMOOTH: {
unsigned int *pz; unsigned int *pz;
Graphics::PixelBuffer buf = pbuf; int buf = pp1 + x1;
unsigned int z, rgb, drgbdx; unsigned int z, rgb, drgbdx;
int n; int n;
n = (x2 >> 16) - x1; n = (x2 >> 16) - x1;
int bpp = buf.getFormat().bytesPerPixel;
buf = (byte *)pp1 + x1 * bpp;
pz = pz1 + x1; pz = pz1 + x1;
z = z1; z = z1;
rgb = (r1 << 16) & 0xFFC00000; rgb = (r1 << 16) & 0xFFC00000;
@ -499,17 +492,17 @@ void FrameBuffer::fillTriangle(ZBufferPoint *p0, ZBufferPoint *p1, ZBufferPoint
rgb |= (b1 << 5) & 0x001FF000; rgb |= (b1 << 5) & 0x001FF000;
drgbdx = _drgbdx; drgbdx = _drgbdx;
while (n >= 3) { while (n >= 3) {
putPixelSmooth(buf, pz, 0, z, tmp, rgb, dzdx, drgbdx); putPixelSmooth(this, buf, pz, 0, z, tmp, rgb, dzdx, drgbdx);
putPixelSmooth(buf, pz, 1, z, tmp, rgb, dzdx, drgbdx); putPixelSmooth(this, buf, pz, 1, z, tmp, rgb, dzdx, drgbdx);
putPixelSmooth(buf, pz, 2, z, tmp, rgb, dzdx, drgbdx); putPixelSmooth(this, buf, pz, 2, z, tmp, rgb, dzdx, drgbdx);
putPixelSmooth(buf, pz, 3, z, tmp, rgb, dzdx, drgbdx); putPixelSmooth(this, buf, pz, 3, z, tmp, rgb, dzdx, drgbdx);
pz += 4; pz += 4;
buf.shiftBy(4); buf += 4;
n -= 4; n -= 4;
} }
while (n >= 0) { while (n >= 0) {
putPixelSmooth(buf, pz, 0, z, tmp, rgb, dzdx, drgbdx); putPixelSmooth(this, buf, pz, 0, z, tmp, rgb, dzdx, drgbdx);
buf.shiftBy(1); buf += 1;
pz += 1; pz += 1;
n -= 1; n -= 1;
} }
@ -524,8 +517,7 @@ void FrameBuffer::fillTriangle(ZBufferPoint *p0, ZBufferPoint *p1, ZBufferPoint
fz = (float)z1; fz = (float)z1;
zinv = (float)(1.0 / fz); zinv = (float)(1.0 / fz);
Graphics::PixelBuffer buf = pbuf; int buf = pp1 + x1;
buf = pp1 + x1 * PSZB;
pz = pz1 + x1; pz = pz1 + x1;
z = z1; z = z1;
@ -548,11 +540,10 @@ void FrameBuffer::fillTriangle(ZBufferPoint *p0, ZBufferPoint *p1, ZBufferPoint
zinv = (float)(1.0 / fz); zinv = (float)(1.0 / fz);
} }
for (int _a = 0; _a < 8; _a++) { for (int _a = 0; _a < 8; _a++) {
putPixelMappingPerspective(buf, textureFormat, texture, pz, _a, z, t, s, tmp, rgb, dzdx, dsdx, dtdx, putPixelMappingPerspective(this, buf, textureFormat, texture, pz, _a, z, t, s, tmp, rgb, dzdx, dsdx, dtdx, drgbdx);
drgbdx);
} }
pz += NB_INTERP; pz += NB_INTERP;
buf.shiftBy(NB_INTERP); buf += NB_INTERP;
n -= NB_INTERP; n -= NB_INTERP;
sz += ndszdx; sz += ndszdx;
tz += ndtzdx; tz += ndtzdx;
@ -569,10 +560,9 @@ void FrameBuffer::fillTriangle(ZBufferPoint *p0, ZBufferPoint *p1, ZBufferPoint
} }
while (n >= 0) { while (n >= 0) {
putPixelMappingPerspective(buf, textureFormat, texture, pz, 0, z, t, s, tmp, rgb, dzdx, dsdx, dtdx, putPixelMappingPerspective(this, buf, textureFormat, texture, pz, 0, z, t, s, tmp, rgb, dzdx, dsdx, dtdx, drgbdx);
drgbdx);
pz += 1; pz += 1;
buf.shiftBy(1); buf += 1;
n -= 1; n -= 1;
} }
} }
@ -630,7 +620,7 @@ void FrameBuffer::fillTriangle(ZBufferPoint *p0, ZBufferPoint *p1, ZBufferPoint
x2 += dx2dy2; x2 += dx2dy2;
// screen coordinates // screen coordinates
pp1 += linesize; pp1 += xsize;
pz1 += xsize; pz1 += xsize;
if (drawLogic == DRAW_SHADOW || drawLogic == DRAW_SHADOW_MASK) if (drawLogic == DRAW_SHADOW || drawLogic == DRAW_SHADOW_MASK)