diff options
Diffstat (limited to 'src/core/SkBitmapProcShader.cpp')
| -rw-r--r-- | src/core/SkBitmapProcShader.cpp | 25 |
1 files changed, 23 insertions, 2 deletions
diff --git a/src/core/SkBitmapProcShader.cpp b/src/core/SkBitmapProcShader.cpp index bd4fece..c3fd7d0 100644 --- a/src/core/SkBitmapProcShader.cpp +++ b/src/core/SkBitmapProcShader.cpp @@ -137,6 +137,15 @@ bool SkBitmapProcShader::setContext(const SkBitmap& device, #define BUF_MAX 128 +#define TEST_BUFFER_OVERRITEx + +#ifdef TEST_BUFFER_OVERRITE + #define TEST_BUFFER_EXTRA 32 + #define TEST_PATTERN 0x88888888 +#else + #define TEST_BUFFER_EXTRA 0 +#endif + void SkBitmapProcShader::shadeSpan(int x, int y, SkPMColor dstC[], int count) { const SkBitmapProcState& state = fState; if (state.fShaderProc32) { @@ -144,10 +153,10 @@ void SkBitmapProcShader::shadeSpan(int x, int y, SkPMColor dstC[], int count) { return; } - uint32_t buffer[BUF_MAX]; + uint32_t buffer[BUF_MAX + TEST_BUFFER_EXTRA]; SkBitmapProcState::MatrixProc mproc = state.fMatrixProc; SkBitmapProcState::SampleProc32 sproc = state.fSampleProc32; - int max = fState.maxCountForBufferSize(sizeof(buffer)); + int max = fState.maxCountForBufferSize(sizeof(buffer[0]) * BUF_MAX); SkASSERT(state.fBitmap->getPixels()); SkASSERT(state.fBitmap->pixelRef() == NULL || @@ -158,12 +167,24 @@ void SkBitmapProcShader::shadeSpan(int x, int y, SkPMColor dstC[], int count) { if (n > max) { n = max; } + SkASSERT(n > 0 && n < BUF_MAX*2); +#ifdef TEST_BUFFER_OVERRITE + for (int i = 0; i < TEST_BUFFER_EXTRA; i++) { + buffer[BUF_MAX + i] = TEST_PATTERN; + } +#endif mproc(state, buffer, n, x, y); +#ifdef TEST_BUFFER_OVERRITE + for (int j = 0; j < TEST_BUFFER_EXTRA; j++) { + SkASSERT(buffer[BUF_MAX + j] == TEST_PATTERN); + } +#endif sproc(state, buffer, n, dstC); if ((count -= n) == 0) { break; } + SkASSERT(count > 0); x += n; dstC += n; } |