1 files changed, 142 insertions, 0 deletions
diff --git a/src/utils/mac/SkBitmap_Mac.cpp b/src/utils/mac/SkBitmap_Mac.cpp
new file mode 100644
index 0000000..06c2b27
--- /dev/null
+++ b/src/utils/mac/SkBitmap_Mac.cpp
@@ -0,0 +1,142 @@
+#include "SkBitmap.h"
+#include "SkColorPriv.h"
+#include "SkMath.h"
+
+#if defined(SK_BUILD_FOR_MAC) && !defined(SK_USE_WXWIDGETS)
+
+#include <ApplicationServices/ApplicationServices.h>
+
+#ifndef __ppc__
+    #define SWAP_16BIT
+#endif
+
+static void convertGL32_to_Mac32(uint32_t dst[], const SkBitmap& bm) {
+    memcpy(dst, bm.getPixels(), bm.getSize());
+    return;
+    
+    uint32_t* stop = dst + (bm.getSize() >> 2);
+    const uint8_t* src = (const uint8_t*)bm.getPixels();
+    while (dst < stop) {
+        *dst++ = src[2] << 24 | src[1] << 16 | src[0] << 8 | src[3] << 0;
+        src += sizeof(uint32_t);
+    }
+}
+
+static void convert565_to_32(uint32_t dst[], const SkBitmap& bm) {
+    for (int y = 0; y < bm.height(); y++) {
+        const uint16_t* src = bm.getAddr16(0, y);
+        const uint16_t* stop = src + bm.width();
+        while (src < stop) {
+            unsigned c = *src++;
+            unsigned r = SkPacked16ToR32(c);
+            unsigned g = SkPacked16ToG32(c);
+            unsigned b = SkPacked16ToB32(c);
+        
+            *dst++ = (b << 24) | (g << 16) | (r << 8) | 0xFF;
+        }
+    }
+}
+
+static void convert4444_to_555(uint16_t dst[], const uint16_t src[], int count)
+{
+    const uint16_t* stop = src + count;
+    
+    while (src < stop)
+    {
+        unsigned c = *src++;
+        
+        unsigned r = SkGetPackedR4444(c);
+        unsigned g = SkGetPackedG4444(c);
+        unsigned b = SkGetPackedB4444(c);
+        // convert to 5 bits
+        r = (r << 1) | (r >> 3);
+        g = (g << 1) | (g >> 3);
+        b = (b << 1) | (b >> 3);
+        // build the 555
+        c = (r << 10) | (g << 5) | b;
+        
+#ifdef SWAP_16BIT
+        c = (c >> 8) | (c << 8);
+#endif
+        *dst++ = c;
+    }
+}
+
+#include "SkTemplates.h"
+
+static CGImageRef bitmap2imageref(const SkBitmap& bm) {
+    size_t  bitsPerComp;
+    size_t  bitsPerPixel;
+    CGBitmapInfo info;
+    CGColorSpaceRef cs = CGColorSpaceCreateWithName(kCGColorSpaceGenericRGB);
+    CGDataProviderRef data = CGDataProviderCreateWithData(NULL,
+                                                           bm.getPixels(),
+                                                           bm.getSize(),
+                                                           NULL);
+    SkAutoTCallVProc<CGDataProvider, CGDataProviderRelease> acp(data);
+    SkAutoTCallVProc<CGColorSpace, CGColorSpaceRelease> acp2(cs);
+
+    switch (bm.config()) {
+        case SkBitmap::kARGB_8888_Config:
+            bitsPerComp = 8;
+            bitsPerPixel = 32;
+            info = kCGImageAlphaPremultipliedLast;
+            break;
+        case SkBitmap::kARGB_4444_Config:
+            bitsPerComp = 4;
+            bitsPerPixel = 16;
+            info = kCGImageAlphaPremultipliedLast |  kCGBitmapByteOrder16Little;
+            break;
+#if 0   // not supported by quartz !!!
+        case SkBitmap::kRGB_565_Config:
+            bitsPerComp = 5;
+            bitsPerPixel = 16;
+            info = kCGImageAlphaNone | kCGBitmapByteOrder16Little;
+            break;
+#endif
+        default:
+            return NULL;
+    }
+
+    return CGImageCreate(bm.width(), bm.height(), bitsPerComp, bitsPerPixel,
+                         bm.rowBytes(), cs, info, data,
+                         NULL, false, kCGRenderingIntentDefault);
+}
+
+void SkBitmap::drawToPort(WindowRef wind, CGContextRef cg) const {
+	if (fPixels == NULL || fWidth == 0 || fHeight == 0) {
+		return;
+    }
+    
+    bool useQD = false;
+    if (NULL == cg) {
+        SetPortWindowPort(wind);
+        QDBeginCGContext(GetWindowPort(wind), &cg);
+        useQD = true;
+    }
+
+    SkBitmap bm;
+    if (this->config() == kRGB_565_Config) {
+        this->copyTo(&bm, kARGB_8888_Config);
+    } else {
+        bm = *this;
+    }
+    bm.lockPixels();
+
+    CGImageRef image = bitmap2imageref(bm);
+    if (image) {
+        CGRect rect;
+        rect.origin.x = rect.origin.y = 0;
+        rect.size.width = bm.width();
+        rect.size.height = bm.height();
+        
+        CGContextDrawImage(cg, rect, image);
+        CGImageRelease(image);
+    }
+
+    if (useQD) {
+        QDEndCGContext(GetWindowPort(wind), &cg);
+    }
+}
+
+#endif