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SAGA2: Implement few low level drawing routines

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This commit is contained in:
Eugene Sandulenko 2021-06-10 00:20:33 +02:00
parent 269a21cdef
commit a6ec2a77de
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GPG Key ID: 014D387312D34F08
3 changed files with 103 additions and 26 deletions
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104
engines/saga2/blitters.cpp
View File

@ -310,20 +310,110 @@ void maskTile(gPixelMap *map, int32 x, int32 y, int32 height, uint8 *srcData) {
warning("STUB: maskTile()");
}
void TBlit(gPixelMap *d, gPixelMap *s, int32 x, int32 y) {
warning("STUB: TBlit()");
void TBlit(gPixelMap *dstMap, gPixelMap *srcMap, int xpos, int ypos) {
byte *srcPtr,
*dstPtr;
int16 srcMod,
dstMod;
int16 x, y, w, h;
int32 offset = 0;
w = srcMap->size.x;
h = srcMap->size.y;
if (ypos < 0) {
h += ypos;
offset -= (ypos * w);
ypos = 0;
}
if (xpos < 0) {
w += xpos;
offset -= xpos;
xpos = 0;
}
if (w > dstMap->size.x - xpos)
w = dstMap->size.x - xpos;
if (h > dstMap->size.y - ypos)
h = dstMap->size.y - ypos;
if (w < 0 || h < 0)
return;
dstMod = dstMap->size.x - w;
srcMod = srcMap->size.x - w;
srcPtr = srcMap->data + offset;
dstPtr = dstMap->data + xpos + ypos * dstMap->size.x;
for (y = 0; y < h; y++) {
for (x = 0; x < w; x++) {
byte c = *srcPtr++;
if (c == 0)
dstPtr++;
else
*dstPtr++ = c;
}
dstPtr += dstMod;
srcPtr += srcMod;
}
}
void TBlit4(gPixelMap *d, gPixelMap *s, int32 x, int32 y) {
warning("STUB: TBlit4()");
TBlit(d, s, x, y);
}
void compositePixels(gPixelMap *compMap, gPixelMap *sprMap, int32 xpos, int32 ypos, uint8 *lookup) {
warning("STUB: compositePixels()");
void compositePixels(gPixelMap *compMap, gPixelMap *sprMap, int xpos, int ypos, byte *lookup) {
byte *srcPtr,
*dstPtr;
int16 rowMod;
int16 x, y;
// Blit the temp map onto the composite map
srcPtr = sprMap->data;
dstPtr = compMap->data + xpos + ypos * compMap->size.x;
rowMod = compMap->size.x - sprMap->size.x;
for (y = 0; y < sprMap->size.y; y++) {
for (x = 0; x < sprMap->size.x; x++) {
byte c = *srcPtr++;
if (c == 0)
dstPtr++;
else
*dstPtr++ = lookup[ c ];
}
dstPtr += rowMod;
}
}
void compositePixelsRvs(gPixelMap *compMap, gPixelMap *sprMap, int32 xpos, int32 ypos, uint8 *lookup) {
warning("STUB: compositePixelsRvs()");
void compositePixelsRvs(gPixelMap *compMap, gPixelMap *sprMap, int xpos, int ypos, byte *lookup) {
byte *srcPtr,
*dstPtr;
int16 rowMod;
int16 x, y;
// Blit the temp map onto the composite map
srcPtr = sprMap->data + sprMap->bytes();
dstPtr = compMap->data + xpos + (ypos + sprMap->size.y) * compMap->size.x;
rowMod = compMap->size.x + sprMap->size.x;
for (y = 0; y < sprMap->size.y; y++) {
dstPtr -= rowMod;
for (x = 0; x < sprMap->size.x; x++) {
byte c = *--srcPtr;
if (c == 0)
dstPtr++;
else
*dstPtr++ = lookup[ c ];
}
}
}
bool initGraphics(void) {

3
engines/saga2/playmode.cpp
View File

@ -337,8 +337,11 @@ void drawCompressedImage(gPort &port, const Point16 pos, void *image) {
Graphics::Surface sur;
sur.create(map.size.x, map.size.y, Graphics::PixelFormat::createFormatCLUT8());
sur.setPixels(map.data);
#if 0
sur.debugPrint();
g_system->copyRectToScreen(sur.getPixels(), sur.pitch, 0, 0, sur.w, sur.h);
#endif
} else
map.data = (uint8 *)hdr->data;

22
engines/saga2/vwpage.cpp
View File

@ -470,7 +470,7 @@ void vWDisplayPage::vLine(int16 x, int16 y, int16 height, uint8 color) {
#define USE_BLTDDRECT
// -- we'll want to use this when we figure out why bltDDRect doesnt work here
//#define USE_RECT
#define USE_RECT
void vWDisplayPage::writePixels(Rect16 &r, uint8 *pixPtr, uint16 pixMod) {
Common::Rect wRect;
@ -499,27 +499,11 @@ void vWDisplayPage::writeTransPixels(Rect16 &r, uint8 *pixPtr, uint16 pixMod) {
}
#else
void vWDisplayPage::writeTransPixels(Rect16 &r, uint8 *pixPtr, uint16 pixMod) {
uint8 *dstPtr;
RECT wRect;
if (!displayEnabled()) //ddWindow || !ddWindow->bIsActive )
return;
wRect.left = r.x;
wRect.top = r.y;
wRect.right = r.x + r.width;
wRect.bottom = r.y + r.height;
dstPtr = (uint8 *)ddWindow->LockBackBuffer(&wRect);
if (!dstPtr) {
gError::warn("Failed buffer lock");
return;
}
_BltPixelsT(pixPtr, pixMod, dstPtr, ddWindow->lPitch, r.width, r.height);
ddWindow->UnlockBackBuffer(dstPtr);
warning("STUB: writeTransPixels, transparency is ignored");
g_system->copyRectToScreen(pixPtr, pixMod, r.x, r.y, r.width, r.height);
}
#endif