/*
* Set an RLE pixel using the color table
*/
void SkBmpRLECodec::setPixel(void* dst, size_t dstRowBytes,
const SkImageInfo& dstInfo, uint32_t x, uint32_t y,
uint8_t index) {
// Set the row
int height = dstInfo.height();
int row;
if (SkBmpCodec::kBottomUp_RowOrder == this->rowOrder()) {
row = height - y - 1;
} else {
row = y;
}
// Set the pixel based on destination color type
switch (dstInfo.colorType()) {
case kN32_SkColorType: {
SkPMColor* dstRow = SkTAddOffset<SkPMColor>((SkPMColor*) dst,
row * (int) dstRowBytes);
dstRow[x] = fColorTable->operator[](index);
break;
}
case kRGB_565_SkColorType: {
uint16_t* dstRow = SkTAddOffset<uint16_t>(dst, row * (int) dstRowBytes);
dstRow[x] = SkPixel32ToPixel16(fColorTable->operator[](index));
break;
}
default:
// This case should not be reached. We should catch an invalid
// color type when we check that the conversion is possible.
SkASSERT(false);
break;
}
}
bool onGetPixels(const SkImageInfo& info, void* pixels, size_t rowBytes,
const Options& options) override {
REPORTER_ASSERT(fReporter, pixels != nullptr);
REPORTER_ASSERT(fReporter, rowBytes >= info.minRowBytes());
if (fType != kSucceedGetPixels_TestType) {
return false;
}
if (info.colorType() != kN32_SkColorType && info.colorType() != getInfo().colorType()) {
return false;
}
char* bytePtr = static_cast<char*>(pixels);
switch (info.colorType()) {
case kN32_SkColorType:
for (int y = 0; y < info.height(); ++y) {
sk_memset32((uint32_t*)bytePtr,
TestImageGenerator::PMColor(), info.width());
bytePtr += rowBytes;
}
break;
case kRGB_565_SkColorType:
for (int y = 0; y < info.height(); ++y) {
sk_memset16((uint16_t*)bytePtr,
SkPixel32ToPixel16(TestImageGenerator::PMColor()), info.width());
bytePtr += rowBytes;
}
break;
default:
return false;
}
return true;
}
/*
* Set an RLE pixel using the color table
*/
void SkBmpRLECodec::setPixel(void* dst, size_t dstRowBytes,
const SkImageInfo& dstInfo, uint32_t x, uint32_t y,
uint8_t index) {
if (dst && is_coord_necessary(x, fSampleX, dstInfo.width())) {
// Set the row
uint32_t row = this->getDstRow(y, dstInfo.height());
// Set the pixel based on destination color type
const int dstX = get_dst_coord(x, fSampleX);
switch (dstInfo.colorType()) {
case kRGBA_8888_SkColorType:
case kBGRA_8888_SkColorType: {
SkPMColor* dstRow = SkTAddOffset<SkPMColor>(dst, row * (int) dstRowBytes);
dstRow[dstX] = fColorTable->operator[](index);
break;
}
case kRGB_565_SkColorType: {
uint16_t* dstRow = SkTAddOffset<uint16_t>(dst, row * (int) dstRowBytes);
dstRow[dstX] = SkPixel32ToPixel16(fColorTable->operator[](index));
break;
}
default:
// This case should not be reached. We should catch an invalid
// color type when we check that the conversion is possible.
SkASSERT(false);
break;
}
}
}
static void make_image(SkBitmap* bm, SkColorType ct, int configIndex) {
const int width = 98;
const int height = 100;
const SkImageInfo info = SkImageInfo::Make(width, height, ct, kPremul_SkAlphaType);
SkBitmap device;
device.allocN32Pixels(width, height);
SkCanvas canvas(device);
SkPaint paint;
paint.setAntiAlias(true);
canvas.drawColor(SK_ColorRED);
paint.setColor(SK_ColorBLUE);
canvas.drawCircle(SkIntToScalar(width)/2, SkIntToScalar(height)/2,
SkIntToScalar(width)/2, paint);
switch (ct) {
case kPMColor_SkColorType:
bm->swap(device);
break;
case kRGB_565_SkColorType: {
bm->allocPixels(info);
for (int y = 0; y < height; y++) {
for (int x = 0; x < width; x++) {
*bm->getAddr16(x, y) = SkPixel32ToPixel16(*device.getAddr32(x, y));
}
}
break;
}
case kIndex_8_SkColorType: {
SkPMColor colors[256];
for (int i = 0; i < 256; i++) {
if (configIndex & 1) {
colors[i] = SkPackARGB32(255-i, 0, 0, 255-i);
} else {
colors[i] = SkPackARGB32(0xFF, i, 0, 255-i);
}
}
SkColorTable* ctable = new SkColorTable(colors, 256);
bm->allocPixels(info, NULL, ctable);
ctable->unref();
for (int y = 0; y < height; y++) {
for (int x = 0; x < width; x++) {
*bm->getAddr8(x, y) = SkGetPackedR32(*device.getAddr32(x, y));
}
}
break;
}
default:
SkASSERT(0);
}
}
static uint16_t srcatop_modeproc16_255(SkPMColor src, uint16_t dst) {
SkASSERT(require_255(src));
return SkPixel32ToPixel16(src);
}
virtual void filterSpan16(const uint16_t shader[], int count,
uint16_t result[]) {
SkASSERT(this->getFlags() & kHasFilter16_Flag);
sk_memset16(result, SkPixel32ToPixel16(fPMColor), count);
}
SkColor color_to_565(SkColor color) {
SkPMColor pmColor = SkPreMultiplyColor(color);
U16CPU color16 = SkPixel32ToPixel16(pmColor);
return SkPixel16ToColor(color16);
}
}
}
// kIndex1, kIndex2, kIndex4
static void swizzle_small_index_to_565(
void* SK_RESTRICT dstRow, const uint8_t* SK_RESTRICT src, int dstWidth,
int bpp, int deltaSrc, int offset, const SkPMColor ctable[]) {
uint16_t* dst = (uint16_t*) dstRow;
src += offset / 8;
int bitIndex = offset % 8;
uint8_t currByte = *src;
const uint8_t mask = (1 << bpp) - 1;
uint8_t index = (currByte >> (8 - bpp - bitIndex)) & mask;
dst[0] = SkPixel32ToPixel16(ctable[index]);
for (int x = 1; x < dstWidth; x++) {
int bitOffset = bitIndex + deltaSrc;
bitIndex = bitOffset % 8;
currByte = *(src += bitOffset / 8);
index = (currByte >> (8 - bpp - bitIndex)) & mask;
dst[x] = SkPixel32ToPixel16(ctable[index]);
}
}
static void swizzle_small_index_to_n32(
void* SK_RESTRICT dstRow, const uint8_t* SK_RESTRICT src, int dstWidth,
int bpp, int deltaSrc, int offset, const SkPMColor ctable[]) {
SkPMColor* dst = (SkPMColor*) dstRow;