Chromium Code Reviews
chromiumcodereview-hr@appspot.gserviceaccount.com (chromiumcodereview-hr) | Please choose your nickname with Settings | Help | Chromium Project | Gerrit Changes | Sign out
(1063)

Unified Diff: skia/effects/SkTransparentShader.cpp

Issue 113827: Remove the remainder of the skia source code from the Chromium repo.... (Closed) Base URL: svn://chrome-svn/chrome/trunk/src/
Patch Set: Created 11 years, 7 months ago
Use n/p to move between diff chunks; N/P to move between comments. Draft comments are only viewable by you.
Jump to:
View side-by-side diff with in-line comments
Download patch
« no previous file with comments | « skia/effects/SkShaderExtras.cpp ('k') | skia/effects/SkUnitMappers.cpp » ('j') | no next file with comments »
Expand Comments ('e') | Collapse Comments ('c') | Show Comments Hide Comments ('s')
Index: skia/effects/SkTransparentShader.cpp
===================================================================
--- skia/effects/SkTransparentShader.cpp (revision 16859)
+++ skia/effects/SkTransparentShader.cpp (working copy)
@@ -1,144 +0,0 @@
-/* libs/graphics/effects/SkTransparentShader.cpp
-**
-** Copyright 2006, The Android Open Source Project
-**
-** Licensed under the Apache License, Version 2.0 (the "License");
-** you may not use this file except in compliance with the License.
-** You may obtain a copy of the License at
-**
-** http://www.apache.org/licenses/LICENSE-2.0
-**
-** Unless required by applicable law or agreed to in writing, software
-** distributed under the License is distributed on an "AS IS" BASIS,
-** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-** See the License for the specific language governing permissions and
-** limitations under the License.
-*/
-
-#include "SkTransparentShader.h"
-#include "SkColorPriv.h"
-
-bool SkTransparentShader::setContext(const SkBitmap& device,
- const SkPaint& paint,
- const SkMatrix& matrix)
-{
- fDevice = &device;
- fAlpha = paint.getAlpha();
-
- return this->INHERITED::setContext(device, paint, matrix);
-}
-
-uint32_t SkTransparentShader::getFlags()
-{
- uint32_t flags = this->INHERITED::getFlags();
-
- switch (fDevice->getConfig()) {
- case SkBitmap::kRGB_565_Config:
- flags |= kHasSpan16_Flag;
- if (fAlpha == 255)
- flags |= kOpaqueAlpha_Flag;
- break;
- case SkBitmap::kARGB_8888_Config:
- case SkBitmap::kARGB_4444_Config:
- if (fAlpha == 255 && fDevice->isOpaque())
- flags |= kOpaqueAlpha_Flag;
- break;
- default:
- break;
- }
- return flags;
-}
-
-void SkTransparentShader::shadeSpan(int x, int y, SkPMColor span[], int count)
-{
- unsigned scale = SkAlpha255To256(fAlpha);
-
- switch (fDevice->getConfig()) {
- case SkBitmap::kARGB_8888_Config:
- if (scale == 256)
- memcpy(span, fDevice->getAddr32(x, y), count * sizeof(SkPMColor));
- else
- {
- const SkPMColor* src = fDevice->getAddr32(x, y);
- for (int i = count - 1; i >= 0; --i)
- span[i] = SkAlphaMulQ(src[i], scale);
- }
- break;
- case SkBitmap::kRGB_565_Config:
- {
- const uint16_t* src = fDevice->getAddr16(x, y);
- if (scale == 256)
- {
- for (int i = count - 1; i >= 0; --i)
- span[i] = SkPixel16ToPixel32(src[i]);
- }
- else
- {
- unsigned alpha = fAlpha;
- for (int i = count - 1; i >= 0; --i)
- {
- uint16_t c = src[i];
- unsigned r = SkPacked16ToR32(c);
- unsigned g = SkPacked16ToG32(c);
- unsigned b = SkPacked16ToB32(c);
-
- span[i] = SkPackARGB32( alpha,
- SkAlphaMul(r, scale),
- SkAlphaMul(g, scale),
- SkAlphaMul(b, scale));
- }
- }
- }
- break;
- case SkBitmap::kARGB_4444_Config:
- {
- const uint16_t* src = fDevice->getAddr16(x, y);
- if (scale == 256)
- {
- for (int i = count - 1; i >= 0; --i)
- span[i] = SkPixel4444ToPixel32(src[i]);
- }
- else
- {
- unsigned scale16 = scale >> 4;
- for (int i = count - 1; i >= 0; --i)
- {
- uint32_t c = SkExpand_4444(src[i]) * scale16;
- span[i] = SkCompact_8888(c);
- }
- }
- }
- break;
- case SkBitmap::kIndex8_Config:
- SkASSERT(!"index8 not supported as a destination device");
- break;
- case SkBitmap::kA8_Config:
- {
- const uint8_t* src = fDevice->getAddr8(x, y);
- if (scale == 256)
- {
- for (int i = count - 1; i >= 0; --i)
- span[i] = SkPackARGB32(src[i], 0, 0, 0);
- }
- else
- {
- for (int i = count - 1; i >= 0; --i)
- span[i] = SkPackARGB32(SkAlphaMul(src[i], scale), 0, 0, 0);
- }
- }
- break;
- case SkBitmap::kA1_Config:
- SkASSERT(!"kA1_Config umimplemented at this time");
- break;
- default: // to avoid warnings
- break;
- }
-}
-
-void SkTransparentShader::shadeSpan16(int x, int y, uint16_t span[], int count)
-{
- SkASSERT(fDevice->getConfig() == SkBitmap::kRGB_565_Config);
-
- memcpy(span, fDevice->getAddr16(x, y), count << 1);
-}
-
« no previous file with comments | « skia/effects/SkShaderExtras.cpp ('k') | skia/effects/SkUnitMappers.cpp » ('j') | no next file with comments »

Powered by Google App Engine
This is Rietveld 408576698