diff options
Diffstat (limited to 'vcl/headless/svpgdi.cxx')
| -rw-r--r-- | vcl/headless/svpgdi.cxx | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/vcl/headless/svpgdi.cxx b/vcl/headless/svpgdi.cxx index c756c79ae60a..20f1c0b8a7d8 100644 --- a/vcl/headless/svpgdi.cxx +++ b/vcl/headless/svpgdi.cxx @@ -2203,7 +2203,9 @@ void SvpSalGraphics::drawMask( const SalTwoRect& rTR, } sal_Int32 nStride; unsigned char *mask_data = aSurface.getBits(nStride); +#ifndef ENABLE_WASM_STRIP_PREMULTIPLY vcl::bitmap::lookup_table const & unpremultiply_table = vcl::bitmap::get_unpremultiply_table(); +#endif for (tools::Long y = rTR.mnSrcY ; y < rTR.mnSrcY + rTR.mnSrcHeight; ++y) { unsigned char *row = mask_data + (nStride*y); @@ -2211,9 +2213,15 @@ void SvpSalGraphics::drawMask( const SalTwoRect& rTR, for (tools::Long x = rTR.mnSrcX; x < rTR.mnSrcX + rTR.mnSrcWidth; ++x) { sal_uInt8 a = data[SVP_CAIRO_ALPHA]; +#ifdef ENABLE_WASM_STRIP_PREMULTIPLY + sal_uInt8 b = vcl::bitmap::unpremultiply(a, data[SVP_CAIRO_BLUE]); + sal_uInt8 g = vcl::bitmap::unpremultiply(a, data[SVP_CAIRO_GREEN]); + sal_uInt8 r = vcl::bitmap::unpremultiply(a, data[SVP_CAIRO_RED]); +#else sal_uInt8 b = unpremultiply_table[a][data[SVP_CAIRO_BLUE]]; sal_uInt8 g = unpremultiply_table[a][data[SVP_CAIRO_GREEN]]; sal_uInt8 r = unpremultiply_table[a][data[SVP_CAIRO_RED]]; +#endif if (r == 0 && g == 0 && b == 0) { data[0] = nMaskColor.GetBlue(); @@ -2316,12 +2324,20 @@ Color SvpSalGraphics::getPixel( tools::Long nX, tools::Long nY ) cairo_destroy(cr); cairo_surface_flush(target); +#ifndef ENABLE_WASM_STRIP_PREMULTIPLY vcl::bitmap::lookup_table const & unpremultiply_table = vcl::bitmap::get_unpremultiply_table(); +#endif unsigned char *data = cairo_image_surface_get_data(target); sal_uInt8 a = data[SVP_CAIRO_ALPHA]; +#ifdef ENABLE_WASM_STRIP_PREMULTIPLY + sal_uInt8 b = vcl::bitmap::unpremultiply(a, data[SVP_CAIRO_BLUE]); + sal_uInt8 g = vcl::bitmap::unpremultiply(a, data[SVP_CAIRO_GREEN]); + sal_uInt8 r = vcl::bitmap::unpremultiply(a, data[SVP_CAIRO_RED]); +#else sal_uInt8 b = unpremultiply_table[a][data[SVP_CAIRO_BLUE]]; sal_uInt8 g = unpremultiply_table[a][data[SVP_CAIRO_GREEN]]; sal_uInt8 r = unpremultiply_table[a][data[SVP_CAIRO_RED]]; +#endif Color aColor(ColorAlpha, a, r, g, b); cairo_surface_destroy(target); @@ -2596,9 +2612,11 @@ void SvpSalGraphics::releaseCairoContext(cairo_t* cr, bool bXorModeAllowed, cons if (nUnscaledExtentsBottom > target_surface_height) nUnscaledExtentsBottom = target_surface_height; +#ifndef ENABLE_WASM_STRIP_PREMULTIPLY vcl::bitmap::lookup_table const & unpremultiply_table = vcl::bitmap::get_unpremultiply_table(); vcl::bitmap::lookup_table const & premultiply_table = vcl::bitmap::get_premultiply_table(); +#endif for (sal_Int32 y = nUnscaledExtentsTop; y < nUnscaledExtentsBottom; ++y) { unsigned char *true_row = target_surface_data + (nStride*y); @@ -2609,6 +2627,17 @@ void SvpSalGraphics::releaseCairoContext(cairo_t* cr, bool bXorModeAllowed, cons { sal_uInt8 a = true_data[SVP_CAIRO_ALPHA]; sal_uInt8 xor_a = xor_data[SVP_CAIRO_ALPHA]; +#ifdef ENABLE_WASM_STRIP_PREMULTIPLY + sal_uInt8 b = vcl::bitmap::unpremultiply(a, true_data[SVP_CAIRO_BLUE]) ^ + vcl::bitmap::unpremultiply(xor_a, xor_data[SVP_CAIRO_BLUE]); + sal_uInt8 g = vcl::bitmap::unpremultiply(a, true_data[SVP_CAIRO_GREEN]) ^ + vcl::bitmap::unpremultiply(xor_a, xor_data[SVP_CAIRO_GREEN]); + sal_uInt8 r = vcl::bitmap::unpremultiply(a, true_data[SVP_CAIRO_RED]) ^ + vcl::bitmap::unpremultiply(xor_a, xor_data[SVP_CAIRO_RED]); + true_data[SVP_CAIRO_BLUE] = vcl::bitmap::premultiply(a, b); + true_data[SVP_CAIRO_GREEN] = vcl::bitmap::premultiply(a, g); + true_data[SVP_CAIRO_RED] = vcl::bitmap::premultiply(a, r); +#else sal_uInt8 b = unpremultiply_table[a][true_data[SVP_CAIRO_BLUE]] ^ unpremultiply_table[xor_a][xor_data[SVP_CAIRO_BLUE]]; sal_uInt8 g = unpremultiply_table[a][true_data[SVP_CAIRO_GREEN]] ^ @@ -2618,6 +2647,7 @@ void SvpSalGraphics::releaseCairoContext(cairo_t* cr, bool bXorModeAllowed, cons true_data[SVP_CAIRO_BLUE] = premultiply_table[a][b]; true_data[SVP_CAIRO_GREEN] = premultiply_table[a][g]; true_data[SVP_CAIRO_RED] = premultiply_table[a][r]; +#endif true_data+=4; xor_data+=4; } |