i2p/haiku-beta6
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Refactor IconUtils.cpp

Browse Source 
Mostly style changes, some functional changes although there is no
change in functionality for the success case, just cleaner code.
This commit is contained in:
John Scipione
2012-07-29 13:07:45 -04:00
parent 224f75100b
commit 1ac528017d
1 changed files with 23 additions and 28 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/libs/icon/IconUtils.cpp
+23 -28
View File
@@ -46,7 +46,7 @@ scale_bilinear(uint8* bits, int32 srcWidth, int32 srcHeight, int32 dstWidth,
for (int32 x = 0; x < srcWidth; x++) {
uint8* d = dst;
for (int32 y = dstHeight - 1; y >= 0; y--) {
int32 lineF = y * 256 * (srcHeight - 1) / (dstHeight - 1);
int32 lineF = (y << 8) * (srcHeight - 1) / (dstHeight - 1);
int32 lineI = lineF >> 8;
uint8 weight = (uint8)(lineF & 0xff);
uint8* s1 = bits + lineI * bpr + 4 * x;
@@ -76,7 +76,7 @@ scale_bilinear(uint8* bits, int32 srcWidth, int32 srcHeight, int32 dstWidth,
for (int32 y = 0; y < dstWidth; y++) {
uint8* d = dst;
for (int32 x = dstWidth - 1; x >= 0; x--) {
int32 columnF = x * 256 * (srcWidth - 1) / (dstWidth - 1);
int32 columnF = (x << 8) * (srcWidth - 1) / (dstWidth - 1);
int32 columnI = columnF >> 8;
uint8 weight = (uint8)(columnF & 0xff);
uint8* s1 = bits + y * bpr + 4 * columnI;
@@ -162,10 +162,8 @@ scale3x(const uint8* srcBits, uint8* dstBits, int32 srcWidth, int32 srcHeight,
*/
// Assume that both src and dst are 4 BPP (B_RGBA32)
for(int32 y = 0; y < srcHeight; ++y)
{
for(int32 x = 0; x < srcWidth; ++x)
{
for(int32 y = 0; y < srcHeight; ++y) {
for(int32 x = 0; x < srcWidth; ++x) {
uint32 a = *(uint32*)(srcBits + (MAX(0, y - 1) * srcBPR)
+ (4 * MAX(0, x - 1)));
uint32 b = *(uint32*)(srcBits + (MAX(0, y - 1) * srcBPR)
@@ -563,13 +561,18 @@ status_t
BIconUtils::ConvertFromCMAP8(const uint8* src, uint32 width, uint32 height,
uint32 srcBPR, BBitmap* result)
{
if (!src || !result || srcBPR == 0)
if (src == NULL || result == NULL || srcBPR == 0)
return B_BAD_VALUE;
status_t ret = result->InitCheck();
if (ret < B_OK)
return ret;
if (result->ColorSpace() != B_RGBA32 && result->ColorSpace() != B_RGB32) {
// TODO: support other color spaces
return B_BAD_VALUE;
}
uint32 dstWidth = result->Bounds().IntegerWidth() + 1;
uint32 dstHeight = result->Bounds().IntegerHeight() + 1;
@@ -578,15 +581,12 @@ BIconUtils::ConvertFromCMAP8(const uint8* src, uint32 width, uint32 height,
return B_ERROR;
}
if (result->ColorSpace() != B_RGBA32 && result->ColorSpace() != B_RGB32) {
// TODO: support other color spaces
return B_BAD_VALUE;
}
uint8* dst = (uint8*)result->Bits();
uint32 dstBPR = result->BytesPerRow();
const rgb_color* colorMap = system_colors()->color_list;
if (colorMap == NULL)
return B_NO_INIT;
const uint8* srcStart = src;
uint8* dstStart = dst;
@@ -594,14 +594,12 @@ BIconUtils::ConvertFromCMAP8(const uint8* src, uint32 width, uint32 height,
for (uint32 y = 0; y < height; y++) {
uint32* d = (uint32*)dst;
const uint8* s = src;
for (uint32 x = 0; x < width; x++) {
for (uint32 x = 0; x < width; x++, s++, d++) {
const rgb_color c = colorMap[*s];
uint8 alpha = 255;
uint8 alpha = 0xff;
if (*s == B_TRANSPARENT_MAGIC_CMAP8)
alpha = 0;
*d = (alpha << 24) | (c.red << 16) | (c.green << 8) | (c.blue);
s++;
d++;
}
src += srcBPR;
dst += dstBPR;
@@ -611,13 +609,10 @@ BIconUtils::ConvertFromCMAP8(const uint8* src, uint32 width, uint32 height,
src = srcStart;
dst = dstStart;
if (dstWidth == width && dstHeight == height) {
// No scaling, just convert to B_RGBA32
result->ImportBits(src, height * srcBPR, srcBPR, 0, B_CMAP8);
} else if (dstWidth == dstHeight && dstWidth == 2 * width
|| dstWidth == 3 * width
|| dstWidth == 4 * width) {
// we can do some special convertions here
if ((dstWidth == 2 * width && dstHeight == 2 * height)
|| (dstWidth == 3 * width && dstHeight == 3 * height)
|| (dstWidth == 4 * width && dstHeight == 4 * height)) {
// we can do some special scaling here
// first convert to B_RGBA32
BBitmap* converted
@@ -628,13 +623,12 @@ BIconUtils::ConvertFromCMAP8(const uint8* src, uint32 width, uint32 height,
int32 convertedBPR = converted->BytesPerRow();
// scale using the scale2x/scale3x/scale4x algorithm
if (dstWidth == 2 * width && dstHeight == 2 * height) {
if (dstWidth == 2 * width && dstHeight == 2 * height)
scale2x(convertedBits, dst, width, height, convertedBPR, dstBPR);
} else if (dstWidth == 3 * width && dstHeight == 3 * height) {
else if (dstWidth == 3 * width && dstHeight == 3 * height)
scale3x(convertedBits, dst, width, height, convertedBPR, dstBPR);
} else if (dstWidth == 4 * width && dstHeight == 4 * height) {
else if (dstWidth == 4 * width && dstHeight == 4 * height)
scale4x(convertedBits, dst, width, height, convertedBPR, dstBPR);
}
// cleanup
delete converted;
@@ -683,8 +677,9 @@ memset(result->Bits(), 255, result->BitsLength());
uint32 dstBPR = result->BytesPerRow();
const color_map* colorMap = system_colors();
if (!colorMap)
if (colorMap == NULL)
return B_NO_INIT;
uint16 index;
for (uint32 y = 0; y < height; y++) {