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https://github.com/libretro/scummvm.git
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faeb24f037
Since the only use case for SVGBitmap is blitting it to a ManagedSurface, combine both into one to avoid unnecessary allocation and blitting.
72 lines
2.1 KiB
C++
72 lines
2.1 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "graphics/svg.h"
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#include "common/endian.h"
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#include "common/stream.h"
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#include "common/textconsole.h"
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#include "graphics/pixelformat.h"
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#define NANOSVG_IMPLEMENTATION
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#include "graphics/nanosvg/nanosvg.h"
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#define NANOSVGRAST_IMPLEMENTATION
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#include "graphics/nanosvg/nanosvgrast.h"
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#ifdef SCUMM_BIG_ENDIAN
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#define PIXELFORMAT Graphics::PixelFormat(4, 8, 8, 8, 8, 24, 16, 8, 0)
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#else
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#define PIXELFORMAT Graphics::PixelFormat(4, 8, 8, 8, 8, 0, 8, 16, 24)
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#endif
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namespace Graphics {
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SVGBitmap::SVGBitmap(Common::SeekableReadStream *in, int dw, int dh)
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: ManagedSurface(dw, dh, PIXELFORMAT) {
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if (dw == 0 || dh == 0)
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return;
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int64 size = in->size();
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char *data = new char[size + 1];
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in->read(data, size);
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data[size] = '\0';
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NSVGimage *svg = nsvgParse(data, "px", 96);
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if (svg == NULL)
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error("Cannot parse SVG image");
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delete[] data;
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data = nullptr;
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// Maintain aspect ratio
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float xRatio = 1.0f * dw / svg->width;
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float yRatio = 1.0f * dh / svg->height;
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float ratio = xRatio < yRatio ? xRatio : yRatio;
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NSVGrasterizer *rasterizer = nsvgCreateRasterizer();
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nsvgRasterize(rasterizer, svg, 0, 0, ratio, (byte *)getPixels(), dw, dh, pitch);
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nsvgDeleteRasterizer(rasterizer);
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nsvgDelete(svg);
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}
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} // end of namespace Graphics
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