From 645250e1cd8ce9bc1faea599df7a1b05836bfeb8 Mon Sep 17 00:00:00 2001 From: Bent Bisballe Nyeng Date: Tue, 29 Dec 2020 16:09:43 +0100 Subject: Split UI code into application/plugin UI and UI library. --- dggui/pixelbuffer.h | 101 ++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 101 insertions(+) create mode 100644 dggui/pixelbuffer.h (limited to 'dggui/pixelbuffer.h') diff --git a/dggui/pixelbuffer.h b/dggui/pixelbuffer.h new file mode 100644 index 0000000..5c11d14 --- /dev/null +++ b/dggui/pixelbuffer.h @@ -0,0 +1,101 @@ +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/*************************************************************************** + * pixelbuffer.h + * + * Thu Nov 10 09:00:37 CET 2011 + * Copyright 2011 Bent Bisballe Nyeng + * deva@aasimon.org + ****************************************************************************/ + +/* + * This file is part of DrumGizmo. + * + * DrumGizmo is free software; you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License as published by + * the Free Software Foundation; either version 3 of the License, or + * (at your option) any later version. + * + * DrumGizmo is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public License + * along with DrumGizmo; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. + */ +#pragma once + +#include "colour.h" + +#include +#include +#include + +#include "guievent.h" + +namespace GUI +{ + +class PixelBuffer +{ +public: + PixelBuffer(std::size_t width, std::size_t height); + ~PixelBuffer(); + + void realloc(std::size_t width, std::size_t height); + + void blendLine(std::size_t x, std::size_t y, + const std::uint8_t* line, std::size_t len); + + Rect updateBuffer(std::vector& pixel_buffers); + + std::vector buf_data; + std::uint8_t* buf{nullptr}; + std::size_t width{0}; + std::size_t height{0}; +}; + +class PixelBufferAlpha +{ +public: + PixelBufferAlpha() = default; + PixelBufferAlpha(std::size_t width, std::size_t height); + ~PixelBufferAlpha(); + + void realloc(std::size_t width, std::size_t height); + + void clear(); + + void setPixel(std::size_t x, std::size_t y, const Colour& c); + + void writeLine(std::size_t x, std::size_t y, + const std::uint8_t* line, std::size_t len); + void blendLine(std::size_t x, std::size_t y, + const std::uint8_t* line, std::size_t len); + + void addPixel(std::size_t x, std::size_t y, const Colour& c); + + const Colour& pixel(std::size_t x, std::size_t y) const; + + const std::uint8_t* getLine(std::size_t x, std::size_t y) const; + + std::vector buf_data; + std::uint8_t* buf{nullptr}; + std::size_t width{0}; + std::size_t height{0}; + int x{0}; + int y{0}; + bool dirty{true}; + bool visible{true}; + + // Add optional dirty rect that this pixelbuffer took up since it was last + // rendered. Make sure to update this list on resize and/or move. + std::size_t last_width{0}; + std::size_t last_height{0}; + int last_x{0}; + int last_y{0}; + bool has_last{false}; +}; + +} // GUI:: -- cgit v1.2.3