AuroraMiddleware/skia2
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defer allocating blitter until we know we need it (i.e. gpu-devices don't need,

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which they signal by setting a custom D1G proc)



git-svn-id: http://skia.googlecode.com/svn/trunk@1791 2bbb7eff-a529-9590-31e7-b0007b416f81
This commit is contained in:
reed@google.com 2011-07-05 17:44:56 +00:00
parent b5c97895f3
commit 1d6ee0bd4d
1 changed files with 32 additions and 6 deletions
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38
src/core/SkDraw.cpp
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@ -38,6 +38,14 @@
//#define TRACE_BITMAP_DRAWS
static bool hasCustomD1GProc(const SkDraw& draw) {
return draw.fProcs && draw.fProcs->fD1GProc;
}
static bool needsRasterTextBlit(const SkDraw& draw) {
return !hasCustomD1GProc(draw);
}
class SkAutoRestoreBounder : SkNoncopyable {
public:
// note: initializing fBounder is done only to fix a warning
@ -71,17 +79,27 @@ static SkPoint* rect_points(SkRect& r, int index) {
class SkAutoBlitterChoose {
public:
SkAutoBlitterChoose() {
fBlitter = NULL;
}
SkAutoBlitterChoose(const SkBitmap& device, const SkMatrix& matrix,
const SkPaint& paint) {
fBlitter = SkBlitter::Choose(device, matrix, paint,
fStorage, sizeof(fStorage));
}
~SkAutoBlitterChoose();
SkBlitter* operator->() { return fBlitter; }
SkBlitter* get() const { return fBlitter; }
void choose(const SkBitmap& device, const SkMatrix& matrix,
const SkPaint& paint) {
SkASSERT(!fBlitter);
fBlitter = SkBlitter::Choose(device, matrix, paint,
fStorage, sizeof(fStorage));
}
private:
SkBlitter* fBlitter;
uint32_t fStorage[kBlitterStorageLongCount];
@ -1496,7 +1514,7 @@ SkDraw1Glyph::Proc SkDraw1Glyph::init(const SkDraw* draw, SkBlitter* blitter,
fBlitter = blitter;
fCache = cache;
if (draw->fProcs && draw->fProcs->fD1GProc) {
if (hasCustomD1GProc(*draw)) {
return draw->fProcs->fD1GProc;
}
@ -1572,7 +1590,7 @@ void SkDraw::drawText(const char text[], size_t byteLength,
const SkMatrix* matrix = fMatrix;
SkFixed finalFYMask = ~0xFFFF; // trunc fy;
if (fProcs && fProcs->fD1GProc) {
if (hasCustomD1GProc(*this)) {
// only support the fMVMatrix (for now) for the GPU case, which also
// sets the fD1GProc
if (fMVMatrix) {
@ -1583,7 +1601,6 @@ void SkDraw::drawText(const char text[], size_t byteLength,
SkAutoGlyphCache autoCache(paint, matrix);
SkGlyphCache* cache = autoCache.getCache();
SkAutoBlitterChoose blitter(*fBitmap, *matrix, paint);
// transform our starting point
{
@ -1630,6 +1647,11 @@ void SkDraw::drawText(const char text[], size_t byteLength,
fy += SK_FixedHalf;
fyMask &= finalFYMask;
SkAutoBlitterChoose blitter;
if (needsRasterTextBlit(*this)) {
blitter.choose(*fBitmap, *matrix, paint);
}
SkAutoKern autokern;
SkDraw1Glyph d1g;
SkDraw1Glyph::Proc proc = d1g.init(this, blitter.get(), cache);
@ -1767,7 +1789,7 @@ void SkDraw::drawPosText(const char text[], size_t byteLength,
}
const SkMatrix* matrix = fMatrix;
if (fProcs && fProcs->fD1GProc) {
if (hasCustomD1GProc(*this)) {
// only support the fMVMatrix (for now) for the GPU case, which also
// sets the fD1GProc
if (fMVMatrix) {
@ -1778,8 +1800,12 @@ void SkDraw::drawPosText(const char text[], size_t byteLength,
SkDrawCacheProc glyphCacheProc = paint.getDrawCacheProc();
SkAutoGlyphCache autoCache(paint, matrix);
SkGlyphCache* cache = autoCache.getCache();
SkAutoBlitterChoose blitter(*fBitmap, *matrix, paint);
SkAutoBlitterChoose blitter;
if (needsRasterTextBlit(*this)) {
blitter.choose(*fBitmap, *matrix, paint);
}
const char* stop = text + byteLength;
AlignProc alignProc = pick_align_proc(paint.getTextAlign());
SkDraw1Glyph d1g;