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TWINE: fixed filler methods

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This commit is contained in:
Martin Gerhardy 2021-10-10 11:14:24 +02:00
parent 40dc338671
commit 37c48f7e44
1 changed files with 35 additions and 78 deletions
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113
engines/twine/renderer/renderer.cpp
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@ -473,79 +473,31 @@ void Renderer::renderPolygonsCopper(int vtop, int32 vsize, uint8 color) const {
if (renderLoop > screenHeight) {
renderLoop = screenHeight;
}
int32 sens = 1;
for (int32 currentLine = 0; currentLine < renderLoop; ++currentLine) {
int16 start = ptr1[0];
int16 stop = ptr1[screenHeight];
int16 xMin = ptr1[0];
int16 xMax = ptr1[screenHeight];
ptr1++;
int32 hsize = stop - start;
uint8 *pDest = out + xMin;
if (hsize >= 0) {
uint16 mask = 0x43DB;
for (; xMin <= xMax; xMin++) {
*pDest++ = (uint8)color;
}
hsize++;
const int32 startCopy = start;
for (int32 j = startCopy; j < hsize + startCopy; j++) {
start += mask;
start = (start & 0xFF00) | ((start & 0xFF) & 3U);
start = (start & 0xFF00) | ((start & 0xFF) + color);
if (j >= 0 && j < screenWidth) {
out[j] = start & 0xFF;
}
mask = (mask * 4) | (mask / SCENE_SIZE_HALF);
mask++;
color += sens;
if (!(color & 0xF)) {
sens = -sens;
if (sens < 0) {
color += sens;
}
}
out += screenWidth;
pDest += screenWidth;
}
}
void Renderer::renderPolygonsBopper(int vtop, int32 vsize, uint8 color) const {
#if 0
uint8 *out = (uint8 *)_engine->_frontVideoBuffer.getBasePtr(0, vtop);
const int16 *ptr1 = &_polyTab[vtop];
const int screenWidth = _engine->width();
const int screenHeight = _engine->height();
int32 j = 0;
do {
uint16 stop = *(const uint16 *)(ptr1 + screenHeight);
uint16 start = *(const uint16 *)ptr1;
++ptr1;
if (stop >= start) {
++j;
uint8 *out2 = out + start;
memset(out2, color, j);
++color;
if (!(color & 0xF)) {
while (1) {
--color;
if (!(color & 0xF)) {
break;
}
out += screenWidth;
--vsize;
if (!vsize) {
return;
}
stop = *(const uint16 *)(ptr1 + screenHeight);
start = *(const uint16 *)ptr1;
++ptr1;
if (stop >= start) {
++j;
out2 = out + start;
memset(out2, color, j);
}
}
}
}
out += screenWidth;
--vsize;
} while (vsize);
#else
uint8 *out = (uint8 *)_engine->_frontVideoBuffer.getBasePtr(0, vtop);
const int16 *ptr1 = &_polyTab[vtop];
const int screenWidth = _engine->width();
@ -558,24 +510,32 @@ void Renderer::renderPolygonsBopper(int vtop, int32 vsize, uint8 color) const {
if (renderLoop > screenHeight) {
renderLoop = screenHeight;
}
int32 sens = 1;
int32 line = 2;
for (int32 currentLine = 0; currentLine < renderLoop; ++currentLine) {
int16 start = ptr1[0];
int16 stop = ptr1[screenHeight];
int16 xMin = ptr1[0];
int16 xMax = ptr1[screenHeight];
ptr1++;
const int32 hsize = stop - start;
if (start & 1) {
if (hsize >= 0) {
for (int32 j = start; j <= hsize + start; j++) {
if (j >= 0 && j < screenWidth) {
out[j] = color;
}
uint8 *pDest = out + xMin;
for (; xMin <= xMax; xMin++) {
*pDest++ = (uint8)color;
}
line--;
if (!line) {
line = 2;
color += sens;
if (!(color & 0xF)) {
sens = -sens;
if (sens < 0) {
color += sens;
}
}
}
out += screenWidth;
}
#endif
}
void Renderer::renderPolygonsFlat(int vtop, int32 vsize, uint8 color) const {
@ -1053,13 +1013,10 @@ void Renderer::fillVertices(int vtop, int32 vsize, uint8 renderType, uint8 color
}
break;
case POLYGONTYPE_COPPER:
// TODO: activate again after POLYGONTYPE_BOPPER is fixed
//renderPolygonsCopper(vtop, vsize, colorStart);
//break;
case POLYGONTYPE_BOPPER:
renderPolygonsCopper(vtop, vsize, colorStart);
// TODO: fix this render method:
// renderPolygonsBopper(vtop, vsize, colorStart);
break;
case POLYGONTYPE_BOPPER:
renderPolygonsBopper(vtop, vsize, colorStart);
break;
case POLYGONTYPE_TRANS:
renderPolygonsTrans(vtop, vsize, colorStart);