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Copy pathBBitmap.cpp
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1664 lines (1467 loc) · 46.6 KB
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#include "BBitmap.h"
//#include <Display/Display.h>
#include "BViewPort.h"
#include <cstring>
#include "Panic.h"
#include "BFont.h"
#include <strings.h>
#include <cmath>
#ifndef __XTENSA__
#include <cstdio>
#endif
#ifndef SCREEN_WIDTH
#define SCREEN_WIDTH 320
#define SCREEN_HEIGHT 240
#define SCREEN_DEPTH 8
#endif
#define RLE
BBitmap *BBitmap::CreateBBitmap(TUint aWidth, TUint aHeight, TUint aDepth, TUint16 aMemoryFlag) {
if (aDepth != 8) {
Panic("CreateBBitmap Unsupported depth %d", aDepth);
}
return new BBitmap(aWidth, aHeight, aDepth, aMemoryFlag);
}
BBitmap *BBitmap::CreateBBitmap(TAny *aRom, TUint16 aMemoryFlag) {
return new BBitmap(aRom, aMemoryFlag);
}
BBitmap::BBitmap(TUint aWidth, TUint aHeight, TUint aDepth, TUint16 aMemoryType) {
mROM = EFalse;
mWidth = aWidth;
mHeight = aHeight;
mDepth = aDepth;
mPitch = mWidth;
mColors = 256;
mPalette = new TRGB[mColors];
mPixels = (TUint8 *)AllocMem((mWidth * mHeight) * sizeof(TUint8), aMemoryType);
mTransparentColor = -1;
mDimensions.x1 = mDimensions.y1 = 0;
mDimensions.x2 = mWidth - 1;
mDimensions.y2 = mHeight - 1;
for (TInt i = 0; i < 256; i++) {
mColorsUsed[i] = ENull;
}
}
/**
* construct a BBitmap from ROM definition
*/
struct ROMBitmap {
TUint16 width, height, depth, bytesPerRow, paletteSize;
TUint8 palette[1];
};
static TBool once = EFalse;
BBitmap::BBitmap(TAny *aROM, TUint16 aMemoryType) {
auto *bmp = (ROMBitmap *)aROM;
for (TInt i = 0; i < 256; i++) {
mColorsUsed[i] = EFalse;
}
mROM = ETrue;
mWidth = bmp->width;
mHeight = bmp->height;
mDepth = bmp->depth;
mPitch = bmp->bytesPerRow;
mColors = bmp->paletteSize;
mPalette = new TRGB[bmp->paletteSize];
if (!mPalette) {
Panic("Cannot allocate mPalette\n");
}
mDimensions.x1 = mDimensions.y1 = 0;
mDimensions.x2 = mWidth - 1;
mDimensions.y2 = mHeight - 1;
mTransparentColor = -1;
TUint8 *ptr = &bmp->palette[0];
for (TInt i = 0; i < bmp->paletteSize * 3; i += 3) {
const TUint8 r = *ptr++;
const TUint8 g = *ptr++;
const TUint8 b = *ptr++;
mPalette[i / 3].Set(r, g, b);
if (r == 0xff && g == 0x00 && b == 0xff) {
mTransparentColor = i / 3;
}
}
mPixels = (TUint8 *)AllocMem((mWidth * mHeight) * sizeof(TUint8), aMemoryType);
if (!mPixels) {
Panic("Cannot allocate mPixels\n");
}
#ifdef RLE
TUint8 *dst = mPixels;
TInt length = mWidth * mHeight;
while (length > 0) {
TInt8 count = *ptr++;
if (count & 0x80) {
count &= 0x7f;
count++;
#ifdef DEBUGME
if (!once) {
printf("rle run ");
}
#endif
for (TUint8 i = 0; i < count; i++) {
#ifdef DEBUGME
if (!once) {
printf("%02x ", *ptr);
}
#endif
TUint8 color = *ptr++;
mColorsUsed[color] = ETrue;
*dst++ = color;
length--;
}
#ifdef DEBUGME
if (!once) {
printf(" => rle %d length %d\n", count, length);
}
#endif
}
else {
count &= 0x7f;
count++;
TUint8 byte = *ptr++;
mColorsUsed[byte] = ETrue;
for (TUint8 i = 0; i < count; i++) {
*dst++ = byte;
length--;
}
#ifdef DEBUGME
if (!once) {
printf("rle dup %3d %02x length %d\n", count, byte, length);
}
#endif
}
}
once = ETrue;
#else
TUint8 *dst = mPixels;
for (TInt i = 0; i < mHeight * mPitch; i++) {
TUint8 color = *ptr++;
mColorsUsed[color] = ETrue;
*dst++ = color;
}
#endif
}
BBitmap::~BBitmap() {
FreeMem(mPixels);
mPixels = ENull;
delete[] mPalette;
mPalette = ENull;
}
void BBitmap::Dump() {
#ifndef PRODUCTION
#if (defined(__XTENSA__) && defined(DEBUGME)) || !defined(__XTENSA__)
printf("mRom: %d\n", mROM);
printf("mWidth: %d, mHeight: %d, mDepth: %d, mPitch: %d\n", mWidth, mHeight,
mDepth, mPitch);
printf("mPixels: %s\n", mPixels);
printf("mColors: %d, mPalette: %p\n", mColors, mPalette);
for (TInt c = 0; c < mColors; c++) {
printf("%3d ", c);
mPalette[c].Dump();
}
#endif
#endif
}
TInt BBitmap::NextUnusedColor() {
for (TInt i = 0; i < 256; i++) {
if (!mColorsUsed[i]) {
return i;
}
}
return -1;
}
TInt BBitmap::FindColor(const TRGB &aColor) {
for (TInt ndx = 0; ndx < 256; ndx++) {
if (mColorsUsed[ndx] && mPalette[ndx] == aColor) {
return ndx;
}
}
return -1;
}
// add aStartColor (it's an offset) to each pixel
// copy palette from 0 to aStartColor (index) for the number of colors
void BBitmap::Remap(BBitmap *aOther) {
TRGB transparent(255, 0, 255);
mTransparentColor = -1;
TInt16 remap[256];
for (TInt i = 0; i < 256; i++) {
remap[i] = -1;
}
for (TInt y = 0; y < mHeight; y++) {
for (TInt x = 0; x < mWidth; x++) {
TInt pixel = ReadPixel(x, y);
if (remap[pixel] != -1) {
WritePixel(x, y, remap[pixel]);
}
else {
TRGB &color = ReadColor(x, y);
TInt found = aOther->FindColor(color);
if (found != -1) {
remap[pixel] = found;
if (mTransparentColor == -1 && color == transparent) {
mTransparentColor = found;
}
WritePixel(x, y, found);
}
else {
found = aOther->NextUnusedColor();
if (found == -1) {
Panic("Can't remap BBitmap: out of colors\n");
}
if (mTransparentColor == -1 && color == transparent) {
mTransparentColor = found;
}
remap[pixel] = found;
WritePixel(x, y, found);
aOther->UseColor(found);
aOther->SetColor(found, color);
}
}
}
}
}
TInt BBitmap::CountUsedColors() {
TInt count = 0;
for (TInt i = 0; i < 256; i++) {
if (mColorsUsed[i]) {
count++;
}
}
return count;
}
TInt BBitmap::CountColors() {
TBool used[256];
TInt count = 0;
for (TInt i = 0; i < 256; i++) {
used[i] = EFalse;
}
for (TInt y = 0; y < mHeight; y++) {
for (TInt x = 0; x < mWidth; x++) {
TUint8 color = ReadPixel(x, y);
if (!used[color]) {
used[color] = ETrue;
count++;
}
}
}
return count;
}
void BBitmap::SetPalette(TRGB aPalette[], TInt aIndex, TInt aCount) {
TInt cnt = MIN(mColors, aCount);
for (TInt i = 0; i < cnt; i++) {
mPalette[aIndex + i].Set(aPalette[aIndex + i]);
}
}
TBool BBitmap::DrawBitmap(BViewPort *aViewPort, BBitmap *aSrcBitmap, TRect aSrcRect, TInt aX, TInt aY, TUint32 aFlags) {
TUint8 *pixels;
TRect clipRect, spriteRect;
TInt nextRow,
viewPortOffsetX = 0,
viewPortOffsetY = 0,
incX = 1,
incY = 1;
if (aViewPort) {
aViewPort->GetRect(clipRect);
viewPortOffsetX = TInt(round(aViewPort->mOffsetX));
viewPortOffsetY = TInt(round(aViewPort->mOffsetY));
}
else {
clipRect.Set(0, 0, SCREEN_WIDTH - 1, SCREEN_HEIGHT - 1);
}
TInt destX = MAX(0, aX) + viewPortOffsetX,
destY = MAX(0, aY) + viewPortOffsetY;
// rotations (x, y are switched)
if (aFlags & (DRAW_ROTATE_LEFT | DRAW_ROTATE_RIGHT)) {
if (aFlags & DRAW_FLOPPED) {
if (aFlags & DRAW_FLIPPED) {
if (aFlags & DRAW_ROTATE_LEFT) {
// rotate left, flipped, flopped = rotate right
aFlags = DRAW_ROTATE_RIGHT;
}
else if (aFlags & DRAW_ROTATE_RIGHT) {
// rotate right, flipped, flopped = rotate left
aFlags = DRAW_ROTATE_LEFT;
}
}
else {
if (aFlags & DRAW_ROTATE_LEFT) {
// rotate left, flopped = rotate right, flipped
aFlags = DRAW_ROTATE_RIGHT | DRAW_FLIPPED;
}
else if (aFlags & DRAW_ROTATE_RIGHT) {
// rotate right, flopped = rotate left, flipped
aFlags = DRAW_ROTATE_LEFT | DRAW_FLIPPED;
}
}
}
if (aFlags & DRAW_FLIPPED) {
if (aFlags & DRAW_ROTATE_LEFT) {
// flip and rotate left
incX = -1;
incY = -1;
destX = MIN(clipRect.x2, aX + aSrcRect.Width() - 1 + viewPortOffsetX);
destY = MIN(clipRect.y2, aY + aSrcRect.Height() - 1 + viewPortOffsetY);
spriteRect.Set(
aSrcRect.y1 - MIN(0, clipRect.Width() - aX - aSrcRect.Width()),
aSrcRect.x1 - MIN(0, clipRect.Height() - aY - aSrcRect.Height()),
aSrcRect.y2 - MAX(0, clipRect.x1 - aX - viewPortOffsetX - 1),
aSrcRect.x2 - MAX(0, clipRect.y1 - aY - viewPortOffsetY - 1));
}
else {
// flip and rotate right
spriteRect.Set(
aSrcRect.y1 + MAX(0, clipRect.x1 - aX - viewPortOffsetX),
aSrcRect.x1 + MAX(0, clipRect.y1 - aY - viewPortOffsetY),
aSrcRect.y2 + MIN(0, clipRect.Width() - aX - aSrcRect.Width() + 1),
aSrcRect.x2 + MIN(0, clipRect.Height() - aY - aSrcRect.Height() + 1));
}
}
else if (aFlags & DRAW_ROTATE_LEFT) {
// rotate left
incY = -1;
destY = MIN(clipRect.y2, aY + aSrcRect.Height() - 1 + viewPortOffsetY);
spriteRect.Set(
aSrcRect.y1 + MAX(0, clipRect.x1 - aX - viewPortOffsetX),
aSrcRect.x1 - MIN(0, clipRect.Height() - aY - aSrcRect.Height()),
aSrcRect.y2 + MIN(0, clipRect.Width() - aX - aSrcRect.Width() + 1),
aSrcRect.x2 - MAX(0, clipRect.y1 - aY - viewPortOffsetY - 1));
}
else {
// rotate right
incX = -1;
destX = MIN(clipRect.x2, aX + aSrcRect.Width() - 1 + viewPortOffsetX);
spriteRect.Set(
aSrcRect.y1 - MIN(0, clipRect.Width() - aX - aSrcRect.Width()),
aSrcRect.x1 + MAX(0, clipRect.y1 - aY - viewPortOffsetY),
aSrcRect.y2 - MAX(0, clipRect.x1 - aX - viewPortOffsetX - 1),
aSrcRect.x2 + MIN(0, clipRect.Height() - aY - aSrcRect.Height() + 1));
}
if (spriteRect.Width() <= 1 || spriteRect.Height() <= 1) {
return EFalse;
}
pixels = &this->mPixels[destY * mPitch + destX];
nextRow = (mPitch * incY) - ((spriteRect.Width() - 1) * incX);
for (TInt y = spriteRect.y1; y < spriteRect.y2; y++, pixels += nextRow) {
for (TInt x = spriteRect.x1; x < spriteRect.x2; x++, pixels += incX) {
*pixels = aSrcBitmap->ReadPixel(y, x);
}
}
}
else {
// no rotations
if (aFlags & DRAW_FLIPPED) {
if (aFlags & DRAW_FLOPPED) {
// flipped and flopped
incX = -1;
incY = -1;
destX = MIN(clipRect.x2, aX + aSrcRect.Width() - 1 + viewPortOffsetX);
destY = MIN(clipRect.y2, aY + aSrcRect.Height() - 1 + viewPortOffsetY);
spriteRect.Set(
aSrcRect.x1 - MIN(0, clipRect.Width() - aX - aSrcRect.Width()),
aSrcRect.y1 - MIN(0, clipRect.Height() - aY - aSrcRect.Height()),
aSrcRect.x2 - MAX(0, clipRect.x1 - aX - viewPortOffsetX - 1),
aSrcRect.y2 - MAX(0, clipRect.y1 - aY - viewPortOffsetY - 1));
}
else {
// flipped
incX = -1;
destX = MIN(clipRect.x2, aX + aSrcRect.Width() - 1 + viewPortOffsetX);
spriteRect.Set(
aSrcRect.x1 - MIN(0, clipRect.Width() - aX - aSrcRect.Width()),
aSrcRect.y1 + MAX(0, clipRect.y1 - aY - viewPortOffsetY),
aSrcRect.x2 - MAX(0, clipRect.x1 - aX - viewPortOffsetX - 1),
aSrcRect.y2 + MIN(0, clipRect.Height() - aY - aSrcRect.Height() + 1));
}
}
else if (aFlags & DRAW_FLOPPED) {
// flopped
incY = -1;
destY = MIN(clipRect.y2, aY + aSrcRect.Height() - 1 + viewPortOffsetY);
spriteRect.Set(
aSrcRect.x1 + MAX(0, clipRect.x1 - aX - viewPortOffsetX),
aSrcRect.y1 - MIN(0, clipRect.Height() - aY - aSrcRect.Height()),
aSrcRect.x2 + MIN(0, clipRect.Width() - aX - aSrcRect.Width() + 1),
aSrcRect.y2 - MAX(0, clipRect.y1 - aY - viewPortOffsetY - 1));
}
else {
// normal
spriteRect.Set(
aSrcRect.x1 + MAX(0, clipRect.x1 - aX - viewPortOffsetX),
aSrcRect.y1 + MAX(0, clipRect.y1 - aY - viewPortOffsetY),
aSrcRect.x2 + MIN(0, clipRect.Width() - aX - aSrcRect.Width() + 1),
aSrcRect.y2 + MIN(0, clipRect.Height() - aY - aSrcRect.Height() + 1));
}
if (spriteRect.Width() <= 1 || spriteRect.Height() <= 1) {
return EFalse;
}
pixels = &this->mPixels[destY * mPitch + destX];
nextRow = (mPitch * incY) - ((spriteRect.Width() - 1) * incX);
for (TInt y = spriteRect.y1; y < spriteRect.y2; y++, pixels += nextRow) {
for (TInt x = spriteRect.x1; x < spriteRect.x2; x++, pixels += incX) {
*pixels = aSrcBitmap->ReadPixel(x, y);
}
}
}
return ETrue;
}
void BBitmap::CopyPixels(BBitmap *aOther) {
if (aOther->mWidth != mWidth || aOther->mHeight != mHeight) {
#ifndef PRODUCTION
#if (defined(__XTENSA__) && defined(DEBUGME)) || !defined(__XTENSA__)
printf("CopyPixels: other bitmap has different dimensions\n");
#endif
#endif
return;
}
memcpy(mPixels, aOther->mPixels, mWidth * mHeight * sizeof(TUint8));
}
TBool BBitmap::DrawBitmapTransparent(BViewPort *aViewPort, BBitmap *aSrcBitmap, TRect aSrcRect, TInt aX, TInt aY, TUint32 aFlags) {
const TInt t = aSrcBitmap->mTransparentColor;
TUint8 *pixels;
TRect clipRect, spriteRect;
TInt nextRow,
viewPortOffsetX = 0,
viewPortOffsetY = 0,
incX = 1,
incY = 1;
if (aViewPort) {
aViewPort->GetRect(clipRect);
viewPortOffsetX = TInt(round(aViewPort->mOffsetX));
viewPortOffsetY = TInt(round(aViewPort->mOffsetY));
}
else {
clipRect.Set(0, 0, SCREEN_WIDTH - 1, SCREEN_HEIGHT - 1);
}
TInt destX = MAX(0, aX) + viewPortOffsetX,
destY = MAX(0, aY) + viewPortOffsetY;
// rotations (x, y are switched)
if (aFlags & (DRAW_ROTATE_LEFT | DRAW_ROTATE_RIGHT)) {
if (aFlags & DRAW_FLOPPED) {
if (aFlags & DRAW_FLIPPED) {
if (aFlags & DRAW_ROTATE_LEFT) {
// rotate left, flipped, flopped = rotate right
aFlags = DRAW_ROTATE_RIGHT;
}
else if (aFlags & DRAW_ROTATE_RIGHT) {
// rotate right, flipped, flopped = rotate left
aFlags = DRAW_ROTATE_LEFT;
}
}
else {
if (aFlags & DRAW_ROTATE_LEFT) {
// rotate left, flopped = rotate right, flipped
aFlags = DRAW_ROTATE_RIGHT | DRAW_FLIPPED;
}
else if (aFlags & DRAW_ROTATE_RIGHT) {
// rotate right, flopped = rotate left, flipped
aFlags = DRAW_ROTATE_LEFT | DRAW_FLIPPED;
}
}
}
if (aFlags & DRAW_FLIPPED) {
if (aFlags & DRAW_ROTATE_LEFT) {
// flip and rotate left
incX = -1;
incY = -1;
destX = MIN(clipRect.x2, aX + aSrcRect.Width() - 1 + viewPortOffsetX);
destY = MIN(clipRect.y2, aY + aSrcRect.Height() - 1 + viewPortOffsetY);
spriteRect.Set(
aSrcRect.y1 - MIN(0, clipRect.Width() - aX - aSrcRect.Width()),
aSrcRect.x1 - MIN(0, clipRect.Height() - aY - aSrcRect.Height()),
aSrcRect.y2 - MAX(0, clipRect.x1 - aX - viewPortOffsetX - 1),
aSrcRect.x2 - MAX(0, clipRect.y1 - aY - viewPortOffsetY - 1));
}
else {
// flip and rotate right
spriteRect.Set(
aSrcRect.y1 + MAX(0, clipRect.x1 - aX - viewPortOffsetX),
aSrcRect.x1 + MAX(0, clipRect.y1 - aY - viewPortOffsetY),
aSrcRect.y2 + MIN(0, clipRect.Width() - aX - aSrcRect.Width() + 1),
aSrcRect.x2 + MIN(0, clipRect.Height() - aY - aSrcRect.Height() + 1));
}
}
else if (aFlags & DRAW_ROTATE_LEFT) {
// rotate left
incY = -1;
destY = MIN(clipRect.y2, aY + aSrcRect.Height() - 1 + viewPortOffsetY);
spriteRect.Set(
aSrcRect.y1 + MAX(0, clipRect.x1 - aX - viewPortOffsetX),
aSrcRect.x1 - MIN(0, clipRect.Height() - aY - aSrcRect.Height()),
aSrcRect.y2 + MIN(0, clipRect.Width() - aX - aSrcRect.Width() + 1),
aSrcRect.x2 - MAX(0, clipRect.y1 - aY - viewPortOffsetY - 1));
}
else {
// rotate right
incX = -1;
destX = MIN(clipRect.x2, aX + aSrcRect.Width() - 1 + viewPortOffsetX);
spriteRect.Set(
aSrcRect.y1 - MIN(0, clipRect.Width() - aX - aSrcRect.Width()),
aSrcRect.x1 + MAX(0, clipRect.y1 - aY - viewPortOffsetY),
aSrcRect.y2 - MAX(0, clipRect.x1 - aX - viewPortOffsetX - 1),
aSrcRect.x2 + MIN(0, clipRect.Height() - aY - aSrcRect.Height() + 1));
}
if (spriteRect.Width() <= 1 || spriteRect.Height() <= 1) {
return EFalse;
}
pixels = &this->mPixels[destY * mPitch + destX];
nextRow = (mPitch * incY) - ((spriteRect.Width() - 1) * incX);
for (TInt y = spriteRect.y1; y < spriteRect.y2; y++, pixels += nextRow) {
for (TInt x = spriteRect.x1; x < spriteRect.x2; x++, pixels += incX) {
TUint8 pix = aSrcBitmap->ReadPixel(y, x);
if (pix != t) {
*pixels = pix;
}
}
}
}
else {
// no rotations
if (aFlags & DRAW_FLIPPED) {
if (aFlags & DRAW_FLOPPED) {
// flipped and flopped
incX = -1;
incY = -1;
destX = MIN(clipRect.x2, aX + aSrcRect.Width() - 1 + viewPortOffsetX);
destY = MIN(clipRect.y2, aY + aSrcRect.Height() - 1 + viewPortOffsetY);
spriteRect.Set(
aSrcRect.x1 - MIN(0, clipRect.Width() - aX - aSrcRect.Width()),
aSrcRect.y1 - MIN(0, clipRect.Height() - aY - aSrcRect.Height()),
aSrcRect.x2 - MAX(0, clipRect.x1 - aX - viewPortOffsetX - 1),
aSrcRect.y2 - MAX(0, clipRect.y1 - aY - viewPortOffsetY - 1));
}
else {
// flipped
incX = -1;
destX = MIN(clipRect.x2, aX + aSrcRect.Width() - 1 + viewPortOffsetX);
spriteRect.Set(
aSrcRect.x1 - MIN(0, clipRect.Width() - aX - aSrcRect.Width()),
aSrcRect.y1 + MAX(0, clipRect.y1 - aY - viewPortOffsetY),
aSrcRect.x2 - MAX(0, clipRect.x1 - aX - viewPortOffsetX - 1),
aSrcRect.y2 + MIN(0, clipRect.Height() - aY - aSrcRect.Height() + 1));
}
}
else if (aFlags & DRAW_FLOPPED) {
// flopped
incY = -1;
destY = MIN(clipRect.y2, aY + aSrcRect.Height() - 1 + viewPortOffsetY);
spriteRect.Set(
aSrcRect.x1 + MAX(0, clipRect.x1 - aX - viewPortOffsetX),
aSrcRect.y1 - MIN(0, clipRect.Height() - aY - aSrcRect.Height()),
aSrcRect.x2 + MIN(0, clipRect.Width() - aX - aSrcRect.Width() + 1),
aSrcRect.y2 - MAX(0, clipRect.y1 - aY - viewPortOffsetY - 1));
}
else {
// normal
spriteRect.Set(
aSrcRect.x1 + MAX(0, clipRect.x1 - aX - viewPortOffsetX),
aSrcRect.y1 + MAX(0, clipRect.y1 - aY - viewPortOffsetY),
aSrcRect.x2 + MIN(0, clipRect.Width() - aX - aSrcRect.Width() + 1),
aSrcRect.y2 + MIN(0, clipRect.Height() - aY - aSrcRect.Height() + 1));
}
if (spriteRect.Width() <= 1 || spriteRect.Height() <= 1) {
return EFalse;
}
pixels = &this->mPixels[destY * mPitch + destX];
nextRow = (mPitch * incY) - ((spriteRect.Width() - 1) * incX);
for (TInt y = spriteRect.y1; y < spriteRect.y2; y++, pixels += nextRow) {
for (TInt x = spriteRect.x1; x < spriteRect.x2; x++, pixels += incX) {
TUint8 pix = aSrcBitmap->ReadPixel(x, y);
if (pix != t) {
*pixels = pix;
}
}
}
}
return ETrue;
}
TBool BBitmap::FillBitmapTransparent(BViewPort *aViewPort, BBitmap *aSrcBitmap, TRect aSrcRect, TInt aX, TInt aY, TInt16 aFill, TUint32 aFlags) {
const TInt t = aSrcBitmap->mTransparentColor;
TUint8 *pixels;
TRect clipRect, spriteRect;
TInt nextRow,
viewPortOffsetX = 0,
viewPortOffsetY = 0,
incX = 1,
incY = 1;
if (aViewPort) {
aViewPort->GetRect(clipRect);
viewPortOffsetX = TInt(round(aViewPort->mOffsetX));
viewPortOffsetY = TInt(round(aViewPort->mOffsetY));
}
else {
clipRect.Set(0, 0, SCREEN_WIDTH - 1, SCREEN_HEIGHT - 1);
}
TInt destX = MAX(0, aX) + viewPortOffsetX,
destY = MAX(0, aY) + viewPortOffsetY;
// rotations (x, y are switched)
if (aFlags & (DRAW_ROTATE_LEFT | DRAW_ROTATE_RIGHT)) {
if (aFlags & DRAW_FLOPPED) {
if (aFlags & DRAW_FLIPPED) {
if (aFlags & DRAW_ROTATE_LEFT) {
// rotate left, flipped, flopped = rotate right
aFlags = DRAW_ROTATE_RIGHT;
}
else if (aFlags & DRAW_ROTATE_RIGHT) {
// rotate right, flipped, flopped = rotate left
aFlags = DRAW_ROTATE_LEFT;
}
}
else {
if (aFlags & DRAW_ROTATE_LEFT) {
// rotate left, flopped = rotate right, flipped
aFlags = DRAW_ROTATE_RIGHT | DRAW_FLIPPED;
}
else if (aFlags & DRAW_ROTATE_RIGHT) {
// rotate right, flopped = rotate left, flipped
aFlags = DRAW_ROTATE_LEFT | DRAW_FLIPPED;
}
}
}
if (aFlags & DRAW_FLIPPED) {
if (aFlags & DRAW_ROTATE_LEFT) {
// flip and rotate left
incX = -1;
incY = -1;
destX = MIN(clipRect.x2, aX + aSrcRect.Width() - 1 + viewPortOffsetX);
destY = MIN(clipRect.y2, aY + aSrcRect.Height() - 1 + viewPortOffsetY);
spriteRect.Set(
aSrcRect.y1 - MIN(0, clipRect.Width() - aX - aSrcRect.Width()),
aSrcRect.x1 - MIN(0, clipRect.Height() - aY - aSrcRect.Height()),
aSrcRect.y2 - MAX(0, clipRect.x1 - aX - viewPortOffsetX - 1),
aSrcRect.x2 - MAX(0, clipRect.y1 - aY - viewPortOffsetY - 1));
}
else {
// flip and rotate right
spriteRect.Set(
aSrcRect.y1 + MAX(0, clipRect.x1 - aX - viewPortOffsetX),
aSrcRect.x1 + MAX(0, clipRect.y1 - aY - viewPortOffsetY),
aSrcRect.y2 + MIN(0, clipRect.Width() - aX - aSrcRect.Width() + 1),
aSrcRect.x2 + MIN(0, clipRect.Height() - aY - aSrcRect.Height() + 1));
}
}
else if (aFlags & DRAW_ROTATE_LEFT) {
// rotate left
incY = -1;
destY = MIN(clipRect.y2, aY + aSrcRect.Height() - 1 + viewPortOffsetY);
spriteRect.Set(
aSrcRect.y1 - MIN(0, clipRect.Width() - aX - aSrcRect.Width()),
aSrcRect.x1 - MIN(0, clipRect.Height() - aY - aSrcRect.Height()),
aSrcRect.y2 - MAX(0, clipRect.x1 - aX - viewPortOffsetX - 1),
aSrcRect.x2 - MAX(0, clipRect.y1 - aY - viewPortOffsetY - 1));
}
else {
// rotate right
incX = -1;
destX = MIN(clipRect.x2, aX + aSrcRect.Width() - 1 + viewPortOffsetX);
spriteRect.Set(
aSrcRect.y1 - MIN(0, clipRect.Width() - aX - aSrcRect.Width()),
aSrcRect.x1 + MAX(0, clipRect.y1 - aY - viewPortOffsetY),
aSrcRect.y2 - MAX(0, clipRect.x1 - aX - viewPortOffsetX - 1),
aSrcRect.x2 + MIN(0, clipRect.Height() - aY - aSrcRect.Height() + 1));
}
if (spriteRect.Width() == 1 || spriteRect.Height() == 1) {
return EFalse;
}
pixels = &this->mPixels[destY * mPitch + destX];
nextRow = (mPitch * incY) - ((spriteRect.Width() - 1) * incX);
for (TInt y = spriteRect.y1; y < spriteRect.y2; y++, pixels += nextRow) {
for (TInt x = spriteRect.x1; x < spriteRect.x2; x++, pixels += incX) {
TUint8 pix = aSrcBitmap->ReadPixel(y, x);
if (pix != t) {
*pixels = aFill;
}
}
}
}
else {
// no rotations
if (aFlags & DRAW_FLIPPED) {
if (aFlags & DRAW_FLOPPED) {
// flipped and flopped
incX = -1;
incY = -1;
destX = MIN(clipRect.x2, aX + aSrcRect.Width() - 1 + viewPortOffsetX);
destY = MIN(clipRect.y2, aY + aSrcRect.Height() - 1 + viewPortOffsetY);
spriteRect.Set(
aSrcRect.x1 - MIN(0, clipRect.Width() - aX - aSrcRect.Width()),
aSrcRect.y1 - MIN(0, clipRect.Height() - aY - aSrcRect.Height()),
aSrcRect.x2 - MAX(0, clipRect.x1 - aX - viewPortOffsetX - 1),
aSrcRect.y2 - MAX(0, clipRect.y1 - aY - viewPortOffsetY - 1));
}
else {
// flipped
incX = -1;
destX = MIN(clipRect.x2, aX + aSrcRect.Width() - 1 + viewPortOffsetX);
spriteRect.Set(
aSrcRect.x1 - MIN(0, clipRect.Width() - aX - aSrcRect.Width()),
aSrcRect.y1 + MAX(0, clipRect.y1 - aY - viewPortOffsetY),
aSrcRect.x2 - MAX(0, clipRect.x1 - aX - viewPortOffsetX - 1),
aSrcRect.y2 + MIN(0, clipRect.Height() - aY - aSrcRect.Height() + 1));
}
}
else if (aFlags & DRAW_FLOPPED) {
// flopped
incY = -1;
destY = MIN(clipRect.y2, aY + aSrcRect.Height() - 1 + viewPortOffsetY);
spriteRect.Set(
aSrcRect.x1 + MAX(0, clipRect.x1 - aX - viewPortOffsetX),
aSrcRect.y1 - MIN(0, clipRect.Height() - aY - aSrcRect.Height()),
aSrcRect.x2 + MIN(0, clipRect.Width() - aX - aSrcRect.Width() + 1),
aSrcRect.y2 - MAX(0, clipRect.y1 - aY - viewPortOffsetY - 1));
}
else {
// normal
spriteRect.Set(
aSrcRect.x1 + MAX(0, clipRect.x1 - aX - viewPortOffsetX),
aSrcRect.y1 + MAX(0, clipRect.y1 - aY - viewPortOffsetY),
aSrcRect.x2 + MIN(0, clipRect.Width() - aX - aSrcRect.Width() + 1),
aSrcRect.y2 + MIN(0, clipRect.Height() - aY - aSrcRect.Height() + 1));
}
if (spriteRect.Width() == 1 || spriteRect.Height() == 1) {
return EFalse;
}
pixels = &this->mPixels[destY * mPitch + destX];
nextRow = (mPitch * incY) - ((spriteRect.Width() - 1) * incX);
for (TInt y = spriteRect.y1; y < spriteRect.y2; y++, pixels += nextRow) {
for (TInt x = spriteRect.x1; x < spriteRect.x2; x++, pixels += incX) {
TUint8 pix = aSrcBitmap->ReadPixel(x, y);
if (pix != t) {
*pixels = aFill;
}
}
}
}
return ETrue;
}
TBool BBitmap::DrawStringShadow(BViewPort *aViewPort, const char *aStr, const BFont *aFont, TInt aX, TInt aY, TUint8 aFgColor, TUint8 aShadowColor, TInt16 aBgColor, TInt aLetterSpacing) {
return DrawString(aViewPort, aStr, aFont, aX, aY, aShadowColor, aBgColor, aLetterSpacing)
? DrawString(aViewPort, aStr, aFont, aX - 1, aY - 1, aFgColor, aBgColor, aLetterSpacing)
: EFalse;
}
TBool BBitmap::DrawString(BViewPort *aViewPort, const char *aStr, const BFont *aFont, TInt aX, TInt aY, TUint8 aFgColor, TInt16 aBgColor, TInt aLetterSpacing) {
const TInt fontWidth = aFont->mWidth,
fontHeight = aFont->mHeight,
charOffset = fontWidth + aLetterSpacing;
const TBool drawBg = aBgColor != -1;
TBool drawn = EFalse;
BBitmap *fontBitmap = aFont->mBitmap;
TUint8 *pixels;
TRect clipRect, charRect;
TInt nextRow,
viewPortOffsetX = 0,
viewPortOffsetY = 0;
if (aViewPort) {
aViewPort->GetRect(clipRect);
viewPortOffsetX = TInt(round(aViewPort->mOffsetX));
viewPortOffsetY = TInt(round(aViewPort->mOffsetY));
}
else {
clipRect.Set(0, 0, SCREEN_WIDTH - 1, SCREEN_HEIGHT - 1);
}
while (*aStr) {
TInt destX = MAX(0, aX) + viewPortOffsetX,
destY = MAX(0, aY) + viewPortOffsetY;
// Get character
const char c = *aStr++;
const TInt col = (c % 16) * fontWidth;
const TInt row = (c / 16) * fontHeight;
charRect.Set(
col + MAX(0, clipRect.x1 - aX - viewPortOffsetX),
row + MAX(0, clipRect.y1 - aY - viewPortOffsetY),
col + fontWidth + MIN(0, clipRect.Width() - aX - fontWidth),
row + fontHeight + MIN(0, clipRect.Height() - aY - fontHeight));
if (charRect.Height() <= 1) {
return EFalse;
}
if (charRect.Width() <= 1) {
drawn |= EFalse;
aX += charOffset;
continue;
}
pixels = &mPixels[destY * mPitch + destX];
nextRow = mPitch - (charRect.Width() - 1);
for (TInt y = charRect.y1; y < charRect.y2; y++, pixels += nextRow) {
for (TInt x = charRect.x1; x < charRect.x2; x++, pixels++) {
TUint8 pix = fontBitmap->ReadPixel(x, y);
// Write background and foreground pixels
if (pix == 0) {
if (drawBg) {
*pixels = aBgColor;
}
}
else {
*pixels = aFgColor;
}
}
}
aX += charOffset;
drawn |= ETrue;
}
return drawn;
}
void BBitmap::Clear(TUint8 aIndex) {
const TInt len = mPitch * mHeight;
if (aIndex == 0) {
memset(mPixels, aIndex, len * sizeof(TUint8));
return;
}
for (TInt i = 0; i < len; i++) {
WritePixel(i, 0, aIndex);
}
}
void BBitmap::WritePixel(TInt aX, TInt aY, TUint8 aIndex) {
mPixels[aY * mPitch + aX] = aIndex;
}
void BBitmap::SafeWritePixel(TInt aX, TInt aY, TUint8 aIndex) {
if (mDimensions.PointInRect(aX, aY)) {
WritePixel(aX, aY, aIndex);
}
}
void BBitmap::DrawFastHLine(BViewPort *aViewPort, TInt aX, TInt aY, TUint aW, TUint8 aColor) {
// Initial viewport offset
TInt viewPortOffsetX = 0;
TInt viewPortOffsetY = 0;
// Create the viewport
TRect clipRect;
if (aViewPort) {
aViewPort->GetRect(clipRect);
viewPortOffsetX = TInt(round(aViewPort->mOffsetX));
viewPortOffsetY = TInt(round(aViewPort->mOffsetY));
aX += viewPortOffsetX;
aY += viewPortOffsetY;
}
else {
clipRect.Set(0, 0, SCREEN_WIDTH - 1, SCREEN_HEIGHT - 1);
}
// Store viewport width/height
const TInt clipRectWidth = clipRect.Width() - 1 + viewPortOffsetX;
const TInt clipRectHeight = clipRect.Height() - 1 + viewPortOffsetY;
// Do y bounds checks
if (aY < viewPortOffsetY || aY > clipRectHeight) {
return;
}
// last x point + 1
TInt xEnd = aX + aW;
// Check if the entire line is not on the display
if (xEnd < viewPortOffsetX || aX > clipRectWidth) {
return;
}
// Don't start before the left edge
if (aX < viewPortOffsetX) {
aX = viewPortOffsetX;
}
// Don't end past the right edge
if (xEnd > clipRectWidth) {
xEnd = clipRectWidth + 1;
}
// calculate actual width (even if unchanged)
aW = TUint(xEnd - aX);
TUint8 *pixels = &mPixels[aY * mPitch + aX];
while (aW > 3) {
*pixels++ = aColor;
*pixels++ = aColor;
*pixels++ = aColor;
*pixels++ = aColor;
aW -= 4;
}
while (aW > 0) {
*pixels++ = aColor;
aW--;
}
}
void BBitmap::DrawFastVLine(BViewPort *aViewPort, TInt aX, TInt aY, TUint aH, TUint8 aColor) {
// Initial viewport offset
TInt viewPortOffsetX = 0;
TInt viewPortOffsetY = 0;
// Create the viewport
TRect clipRect;
if (aViewPort) {
aViewPort->GetRect(clipRect);
viewPortOffsetX = TInt(round(aViewPort->mOffsetX));
viewPortOffsetY = TInt(round(aViewPort->mOffsetY));
aX += viewPortOffsetX;
aY += viewPortOffsetY;
}
else {
clipRect.Set(0, 0, SCREEN_WIDTH - 1, SCREEN_HEIGHT - 1);
}
// Store viewport width/height
const TInt clipRectWidth = clipRect.Width() - 1 + viewPortOffsetX;
const TInt clipRectHeight = clipRect.Height() - 1 + viewPortOffsetY;
// Do x bounds checks
if (aX < viewPortOffsetX || aX > clipRectWidth) {
return;
}
// last y point + 1
TInt yEnd = aY + aH;
// Check if the entire line is not on the display
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