remove bitmaps entirely from sprite blits (as source)

src/core/SkSpriteBlitter_ARGB32.cpp

 
 /*
  * Copyright 2006 The Android Open Source Project
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 
 #include "SkSpriteBlitter.h"
 #include "SkBlitRow.h"
 #include "SkColorFilter.h"
 #include "SkColorPriv.h"
 #include "SkTemplates.h"
 #include "SkUtils.h"
 #include "SkXfermode.h"
 
 ///////////////////////////////////////////////////////////////////////////////
 
 class Sprite_D32_S32 : public SkSpriteBlitter {
 public:
-    Sprite_D32_S32(const SkBitmap& src, U8CPU alpha)  : INHERITED(src) {
+    Sprite_D32_S32(const SkPixmap& src, U8CPU alpha)  : INHERITED(src) {
         SkASSERT(src.colorType() == kN32_SkColorType);
 
         unsigned flags32 = 0;
         if (255 != alpha) {
             flags32 |= SkBlitRow::kGlobalAlpha_Flag32;
         }
         if (!src.isOpaque()) {
             flags32 |= SkBlitRow::kSrcPixelAlpha_Flag32;
         }
 
         fProc32 = SkBlitRow::Factory32(flags32);
         fAlpha = alpha;
     }
 
     void blitRect(int x, int y, int width, int height) override {
         SkASSERT(width > 0 && height > 0);
         uint32_t* SK_RESTRICT dst = fDevice->getAddr32(x, y);
-        const uint32_t* SK_RESTRICT src = fSource->addr32(x - fLeft, y - fTop);
+        const uint32_t* SK_RESTRICT src = fSource.addr32(x - fLeft, y - fTop);
         size_t dstRB = fDevice->rowBytes();
-        size_t srcRB = fSource->rowBytes();
+        size_t srcRB = fSource.rowBytes();
         SkBlitRow::Proc32 proc = fProc32;
         U8CPU             alpha = fAlpha;
 
         do {
             proc(dst, src, width, alpha);
             dst = (uint32_t* SK_RESTRICT)((char*)dst + dstRB);
             src = (const uint32_t* SK_RESTRICT)((const char*)src + srcRB);
         } while (--height != 0);
     }
 
 private:
     SkBlitRow::Proc32   fProc32;
     U8CPU               fAlpha;
 
     typedef SkSpriteBlitter INHERITED;
 };
 
 ///////////////////////////////////////////////////////////////////////////////
 
 class Sprite_D32_XferFilter : public SkSpriteBlitter {
 public:
-    Sprite_D32_XferFilter(const SkBitmap& source, const SkPaint& paint)
-        : SkSpriteBlitter(source) {
+    Sprite_D32_XferFilter(const SkPixmap& source, const SkPaint& paint) : SkSpriteBlitter(source) {
         fColorFilter = paint.getColorFilter();
         SkSafeRef(fColorFilter);
 
         fXfermode = paint.getXfermode();
         SkSafeRef(fXfermode);
 
         fBufferSize = 0;
         fBuffer = NULL;
 
         unsigned flags32 = 0;
         if (255 != paint.getAlpha()) {
             flags32 |= SkBlitRow::kGlobalAlpha_Flag32;
         }
         if (!source.isOpaque()) {
             flags32 |= SkBlitRow::kSrcPixelAlpha_Flag32;
         }
 
         fProc32 = SkBlitRow::Factory32(flags32);
         fAlpha = paint.getAlpha();
     }
 
     virtual ~Sprite_D32_XferFilter() {
         delete[] fBuffer;
         SkSafeUnref(fXfermode);
         SkSafeUnref(fColorFilter);
     }
 
-    bool setup(const SkBitmap& device, int left, int top, const SkPaint& paint) override {
-        if (!this->INHERITED::setup(device, left, top, paint)) {
-            return false;
-        }
+    void setup(const SkBitmap& device, int left, int top, const SkPaint& paint) override {
+        this->INHERITED::setup(device, left, top, paint);
 
         int width = device.width();
         if (width > fBufferSize) {
             fBufferSize = width;
             delete[] fBuffer;
             fBuffer = new SkPMColor[width];
         }
-        return true;
     }
 
 protected:
     SkColorFilter*      fColorFilter;
     SkXfermode*         fXfermode;
     int                 fBufferSize;
     SkPMColor*          fBuffer;
     SkBlitRow::Proc32   fProc32;
     U8CPU               fAlpha;
 
 private:
     typedef SkSpriteBlitter INHERITED;
 };
 
 ///////////////////////////////////////////////////////////////////////////////
 
 class Sprite_D32_S32A_XferFilter : public Sprite_D32_XferFilter {
 public:
-    Sprite_D32_S32A_XferFilter(const SkBitmap& source, const SkPaint& paint)
+    Sprite_D32_S32A_XferFilter(const SkPixmap& source, const SkPaint& paint)
         : Sprite_D32_XferFilter(source, paint) {}
 
     void blitRect(int x, int y, int width, int height) override {
         SkASSERT(width > 0 && height > 0);
         uint32_t* SK_RESTRICT dst = fDevice->getAddr32(x, y);
-        const uint32_t* SK_RESTRICT src = fSource->addr32(x - fLeft, y - fTop);
+        const uint32_t* SK_RESTRICT src = fSource.addr32(x - fLeft, y - fTop);
         size_t dstRB = fDevice->rowBytes();
-        size_t srcRB = fSource->rowBytes();
+        size_t srcRB = fSource.rowBytes();
         SkColorFilter* colorFilter = fColorFilter;
         SkXfermode* xfermode = fXfermode;
 
         do {
             const SkPMColor* tmp = src;
 
             if (colorFilter) {
                 colorFilter->filterSpan(src, width, fBuffer);
                 tmp = fBuffer;
             }
@@ skipping 17 matching lines @@
                        const SkPMColor16* SK_RESTRICT src, int count) {
     SkASSERT(count > 0);
 
     do {
         *dst++ = SkPixel4444ToPixel32(*src++);
     } while (--count != 0);
 }
 
 class Sprite_D32_S4444_XferFilter : public Sprite_D32_XferFilter {
 public:
-    Sprite_D32_S4444_XferFilter(const SkBitmap& source, const SkPaint& paint)
+    Sprite_D32_S4444_XferFilter(const SkPixmap& source, const SkPaint& paint)
         : Sprite_D32_XferFilter(source, paint) {}
 
     void blitRect(int x, int y, int width, int height) override {
         SkASSERT(width > 0 && height > 0);
         SkPMColor* SK_RESTRICT dst = fDevice->getAddr32(x, y);
-        const SkPMColor16* SK_RESTRICT src = fSource->addr16(x - fLeft, y - fTop);
+        const SkPMColor16* SK_RESTRICT src = fSource.addr16(x - fLeft, y - fTop);
         size_t dstRB = fDevice->rowBytes();
-        size_t srcRB = fSource->rowBytes();
+        size_t srcRB = fSource.rowBytes();
         SkPMColor* SK_RESTRICT buffer = fBuffer;
         SkColorFilter* colorFilter = fColorFilter;
         SkXfermode* xfermode = fXfermode;
 
         do {
             fillbuffer(buffer, src, width);
 
             if (colorFilter) {
                 colorFilter->filterSpan(buffer, width, buffer);
             }
@@ skipping 18 matching lines @@
                     const SkPMColor16* SK_RESTRICT src, int count) {
     do {
         *dst = SkPixel4444ToPixel32(*src);
         src += 1;
         dst += 1;
     } while (--count != 0);
 }
 
 class Sprite_D32_S4444_Opaque : public SkSpriteBlitter {
 public:
-    Sprite_D32_S4444_Opaque(const SkBitmap& source) : SkSpriteBlitter(source) {}
+    Sprite_D32_S4444_Opaque(const SkPixmap& source) : SkSpriteBlitter(source) {}
 
     void blitRect(int x, int y, int width, int height) override {
         SkASSERT(width > 0 && height > 0);
         SkPMColor* SK_RESTRICT dst = fDevice->getAddr32(x, y);
-        const SkPMColor16* SK_RESTRICT src = fSource->addr16(x - fLeft, y - fTop);
+        const SkPMColor16* SK_RESTRICT src = fSource.addr16(x - fLeft, y - fTop);
         size_t dstRB = fDevice->rowBytes();
-        size_t srcRB = fSource->rowBytes();
+        size_t srcRB = fSource.rowBytes();
 
         do {
             src_row(dst, src, width);
             dst = (SkPMColor* SK_RESTRICT)((char*)dst + dstRB);
             src = (const SkPMColor16* SK_RESTRICT)((const char*)src + srcRB);
         } while (--height != 0);
     }
 };
 
 static void srcover_row(SkPMColor* SK_RESTRICT dst,
                         const SkPMColor16* SK_RESTRICT src, int count) {
     do {
         *dst = SkPMSrcOver(SkPixel4444ToPixel32(*src), *dst);
         src += 1;
         dst += 1;
     } while (--count != 0);
 }
 
 class Sprite_D32_S4444 : public SkSpriteBlitter {
 public:
-    Sprite_D32_S4444(const SkBitmap& source) : SkSpriteBlitter(source) {}
+    Sprite_D32_S4444(const SkPixmap& source) : SkSpriteBlitter(source) {}
 
     void blitRect(int x, int y, int width, int height) override {
         SkASSERT(width > 0 && height > 0);
         SkPMColor* SK_RESTRICT dst = fDevice->getAddr32(x, y);
-        const SkPMColor16* SK_RESTRICT src = fSource->addr16(x - fLeft, y - fTop);
+        const SkPMColor16* SK_RESTRICT src = fSource.addr16(x - fLeft, y - fTop);
         size_t dstRB = fDevice->rowBytes();
-        size_t srcRB = fSource->rowBytes();
+        size_t srcRB = fSource.rowBytes();
 
         do {
             srcover_row(dst, src, width);
             dst = (SkPMColor* SK_RESTRICT)((char*)dst + dstRB);
             src = (const SkPMColor16* SK_RESTRICT)((const char*)src + srcRB);
         } while (--height != 0);
     }
 };
 
 ///////////////////////////////////////////////////////////////////////////////
 
-SkSpriteBlitter* SkSpriteBlitter::ChooseD32(const SkBitmap& source, const SkPaint& paint,
+SkSpriteBlitter* SkSpriteBlitter::ChooseD32(const SkPixmap& source, const SkPaint& paint,
         SkTBlitterAllocator* allocator) {
     SkASSERT(allocator != NULL);
 
     if (paint.getMaskFilter() != NULL) {
         return NULL;
     }
 
     U8CPU       alpha = paint.getAlpha();
     SkXfermode* xfermode = paint.getXfermode();
     SkColorFilter* filter = paint.getColorFilter();
@@ skipping 21 matching lines @@
             } else {
                 // this can handle alpha, but not xfermode or filter
                 blitter = allocator->createT<Sprite_D32_S32>(source, alpha);
             }
             break;
         default:
             break;
     }
     return blitter;
 }