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c629c54153
- Move header to base/include to make it applicable for base types like 'Affinity' down the road. - Represent 'Rect' as typle of point and area, which is the most common form of initialization, creates in valid 'Rect' by default. - Turn Point, Area, and Rect into compound types, making x, y, w, h, at, area accessible without a method call - 'Rect::Compound' function for constructing a 'Rect' from two points, replacing a former constructor - Use result type 'Rect::Cut_remainder' instead of out parameters. Fixes #5239
49 lines
1.0 KiB
C++
49 lines
1.0 KiB
C++
/*
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* \brief Support for Genode::Texture
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* \author Norman Feske
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* \date 2014-08-14
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*/
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/*
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* Copyright (C) 2014-2017 Genode Labs GmbH
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*
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* This file is part of the Genode OS framework, which is distributed
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* under the terms of the GNU Affero General Public License version 3.
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*/
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#ifndef _INCLUDE__GEMS__TEXTURE_RGB888_H_
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#define _INCLUDE__GEMS__TEXTURE_RGB888_H_
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/* Genode includes */
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#include <os/texture.h>
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#include <os/pixel_rgb888.h>
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namespace Genode {
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template <>
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inline void
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Texture<Pixel_rgb888>::rgba(unsigned char const *rgba, size_t len, int y)
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{
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if (len > size().w) len = size().w;
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if (y < 0 || y >= (int)size().h) return;
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Pixel_rgb888 *dst_pixel = pixel() + y*size().w;
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unsigned char *dst_alpha = alpha() ? alpha() + y*size().w : 0;
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for (unsigned i = 0; i < len; i++) {
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int r = *rgba++;
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int g = *rgba++;
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int b = *rgba++;
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int a = *rgba++;
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dst_pixel[i].rgba(r, g, b);
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if (dst_alpha)
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dst_alpha[i] = (unsigned char)min(a, 255);
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}
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}
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}
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#endif /* _INCLUDE__GEMS__TEXTURE_RGB888_H_ */
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