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Use size_t for rowBytes.

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Previously, we were using uint32_t sometimes, int sometimes, and
size_t sometimes. Switch to using size_t, since we are actually
talking about a number of bytes.

In copyPixelsTo, use 0 as a flag to use the internal rowBytes,
which is more consistent with setConfig.

Review URL: https://codereview.appspot.com/7370047

git-svn-id: http://skia.googlecode.com/svn/trunk@7843 2bbb7eff-a529-9590-31e7-b0007b416f81
This commit is contained in:
scroggo@google.com 2013-02-25 16:02:36 +00:00
parent 9447103029
commit 0ba4bf427a
3 changed files with 19 additions and 20 deletions
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19
include/core/SkBitmap.h
View File

@ -112,7 +112,7 @@ public:
int height() const { return fHeight; }
/** Return the number of bytes between subsequent rows of the bitmap.
*/
int rowBytes() const { return fRowBytes; }
size_t rowBytes() const { return fRowBytes; }
/** Return the shift amount per pixel (i.e. 0 for 1-byte per pixel, 1 for
2-bytes per pixel configs, 2 for 4-bytes per pixel configs). Return 0
@ -206,7 +206,7 @@ public:
/** Given a config and a width, this computes the optimal rowBytes value. This is called automatically
if you pass 0 for rowBytes to setConfig().
*/
static int ComputeRowBytes(Config c, int width);
static size_t ComputeRowBytes(Config c, int width);
/** Return the bytes-per-pixel for the specified config. If the config is
not at least 1-byte per pixel, return 0, including for kNo_Config.
@ -251,7 +251,7 @@ public:
ComputeRowBytes() is called to compute the optimal value. This resets
any pixel/colortable ownership, just like reset().
*/
void setConfig(Config, int width, int height, int rowBytes = 0);
void setConfig(Config, int width, int height, size_t rowBytes = 0);
/** Use this to assign a new pixel address for an existing bitmap. This
will automatically release any pixelref previously installed. Only call
this if you are handling ownership/lifetime of the pixel memory.
@ -278,13 +278,12 @@ public:
@param dst Location of destination buffer.
@param dstSize Size of destination buffer. Must be large enough to hold
pixels using indicated stride.
@param dstRowBytes Width of each line in the buffer. If -1, uses
@param dstRowBytes Width of each line in the buffer. If 0, uses
bitmap's internal stride.
@param preserveDstPad Must we preserve padding in the dst
*/
bool copyPixelsTo(void* const dst, size_t dstSize, int dstRowBytes = -1,
bool preserveDstPad = false)
const;
bool copyPixelsTo(void* const dst, size_t dstSize, size_t dstRowBytes = 0,
bool preserveDstPad = false) const;
/** Use the standard HeapAllocator to create the pixelref that manages the
pixel memory. It will be sized based on the current width/height/config.
@ -646,7 +645,7 @@ private:
kImageIsImmutable_Flag = 0x04
};
uint32_t fRowBytes;
size_t fRowBytes;
uint32_t fWidth;
uint32_t fHeight;
uint8_t fConfig;
@ -658,11 +657,11 @@ private:
static Sk64 ComputeSafeSize64(Config config,
uint32_t width,
uint32_t height,
uint32_t rowBytes);
size_t rowBytes);
static size_t ComputeSafeSize(Config config,
uint32_t width,
uint32_t height,
uint32_t rowBytes);
size_t rowBytes);
/* Unreference any pixelrefs or colortables
*/

16
src/core/SkBitmap.cpp
View File

@ -181,7 +181,7 @@ int SkBitmap::ComputeBytesPerPixel(SkBitmap::Config config) {
return bpp;
}
int SkBitmap::ComputeRowBytes(Config c, int width) {
size_t SkBitmap::ComputeRowBytes(Config c, int width) {
if (width < 0) {
return 0;
}
@ -232,7 +232,7 @@ size_t SkBitmap::ComputeSize(Config c, int width, int height) {
Sk64 SkBitmap::ComputeSafeSize64(Config config,
uint32_t width,
uint32_t height,
uint32_t rowBytes) {
size_t rowBytes) {
Sk64 safeSize;
safeSize.setZero();
if (height > 0) {
@ -248,7 +248,7 @@ Sk64 SkBitmap::ComputeSafeSize64(Config config,
size_t SkBitmap::ComputeSafeSize(Config config,
uint32_t width,
uint32_t height,
uint32_t rowBytes) {
size_t rowBytes) {
Sk64 safeSize = ComputeSafeSize64(config, width, height, rowBytes);
return (safeSize.is32() ? safeSize.get32() : 0);
}
@ -266,10 +266,10 @@ void SkBitmap::getBounds(SkIRect* bounds) const {
///////////////////////////////////////////////////////////////////////////////
void SkBitmap::setConfig(Config c, int width, int height, int rowBytes) {
void SkBitmap::setConfig(Config c, int width, int height, size_t rowBytes) {
this->freePixels();
if ((width | height | rowBytes) < 0) {
if ((width | height) < 0) {
goto err;
}
@ -465,11 +465,11 @@ Sk64 SkBitmap::getSafeSize64() const {
}
bool SkBitmap::copyPixelsTo(void* const dst, size_t dstSize,
int dstRowBytes, bool preserveDstPad) const {
size_t dstRowBytes, bool preserveDstPad) const {
if (dstRowBytes == -1)
if (0 == dstRowBytes) {
dstRowBytes = fRowBytes;
SkASSERT(dstRowBytes >= 0);
}
if (getConfig() == kRLE_Index8_Config ||
dstRowBytes < ComputeRowBytes(getConfig(), fWidth) ||

2
src/gpu/SkGr.cpp
View File

@ -39,7 +39,7 @@ static void build_compressed_data(void* buffer, const SkBitmap& bitmap) {
// always skip a full 256 number of entries, even if we memcpy'd fewer
dst += kGrColorTableSize;
if (bitmap.width() == bitmap.rowBytes()) {
if ((unsigned)bitmap.width() == bitmap.rowBytes()) {
memcpy(dst, bitmap.getPixels(), bitmap.getSize());
} else {
// need to trim off the extra bytes per row