Split UI code into application/plugin UI and UI library.

1 files changed, 0 insertions, 369 deletions

diff --git a/plugingui/pixelbuffer.cc b/plugingui/pixelbuffer.cc
deleted file mode 100644
index 3c666cd..0000000
--- a/plugingui/pixelbuffer.cc
+++ /dev/null
@@ -1,369 +0,0 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/***************************************************************************
- *            pixelbuffer.cc
- *
- *  Thu Nov 10 09:00:38 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.
- */
-#include "pixelbuffer.h"
-
-#include <cassert>
-
-#include <cstdlib>
-#include <cstring>
-#include <algorithm>
-
-namespace GUI
-{
-
-PixelBuffer::PixelBuffer(std::size_t width, std::size_t height)
-{
-	realloc(width, height);
-}
-
-PixelBuffer::~PixelBuffer()
-{
-}
-
-void PixelBuffer::realloc(std::size_t width, std::size_t height)
-{
-	buf_data.resize(width * height * 3);
-	buf = buf_data.data();
-	this->width = width;
-	this->height = height;
-}
-
-void PixelBuffer::blendLine(std::size_t x, std::size_t y,
-                            const std::uint8_t* line, std::size_t len)
-{
-	std::uint8_t* target = buf + (x + y * width) * 3;
-	while(len)
-	{
-		if(line[3] == 0xff)
-		{
-			std::memcpy(target, line, 3);
-		}
-		else
-		{
-			unsigned int a = line[3];
-			unsigned int b = 255 - a;
-
-			target[0] = (std::uint8_t)((line[0] * a + target[0] * b) / 255);
-			target[1] = (std::uint8_t)((line[1] * a + target[1] * b) / 255);
-			target[2] = (std::uint8_t)((line[2] * a + target[2] * b) / 255);
-		}
-		target += 3;
-		line += 4;
-		--len;
-	}
-}
-
-Rect PixelBuffer::updateBuffer(std::vector<PixelBufferAlpha*>& pixel_buffers)
-{
-	bool has_dirty_rect{false};
-	Rect dirty_rect;
-
-	for(const auto& pixel_buffer : pixel_buffers)
-	{
-		if(pixel_buffer->dirty)
-		{
-			auto x1 = (std::size_t)std::max(pixel_buffer->x, 0);
-			auto x2 = (std::size_t)std::max((pixel_buffer->x + (int)pixel_buffer->width), 0);
-			auto y1 = (std::size_t)std::max(pixel_buffer->y, 0);
-			auto y2 = (std::size_t)std::max((pixel_buffer->y + (int)pixel_buffer->height), 0);
-
-			pixel_buffer->dirty = false;
-			if(!has_dirty_rect)
-			{
-				// Insert this area:
-				dirty_rect = {x1, y1, x2, y2};
-				has_dirty_rect = true;
-			}
-			else
-			{
-				// Expand existing area:
-				auto x1_0 = dirty_rect.x1;
-				auto y1_0 = dirty_rect.y1;
-				auto x2_0 = dirty_rect.x2;
-				auto y2_0 = dirty_rect.y2;
-				dirty_rect = {
-					(x1_0 < x1) ? x1_0 : x1,
-					(y1_0 < y1) ? y1_0 : y1,
-					(x2_0 > x2) ? x2_0 : x2,
-					(y2_0 > y2) ? y2_0 : y2
-				};
-			}
-		}
-
-		if(pixel_buffer->has_last)
-		{
-			auto x1 = (std::size_t)pixel_buffer->last_x;
-			auto x2 = (std::size_t)(pixel_buffer->last_x + pixel_buffer->last_width);
-			auto y1 = (std::size_t)pixel_buffer->last_y;
-			auto y2 = (std::size_t)(pixel_buffer->last_y + pixel_buffer->last_height);
-
-			pixel_buffer->has_last = false;
-			if(!has_dirty_rect)
-			{
-				// Insert this area:
-				dirty_rect = {x1, y1, x2, y2};
-				has_dirty_rect = true;
-			}
-			else
-			{
-				// Expand existing area:
-				auto x1_0 = dirty_rect.x1;
-				auto y1_0 = dirty_rect.y1;
-				auto x2_0 = dirty_rect.x2;
-				auto y2_0 = dirty_rect.y2;
-				dirty_rect = {
-					(x1_0 < x1) ? x1_0 : x1,
-					(y1_0 < y1) ? y1_0 : y1,
-					(x2_0 > x2) ? x2_0 : x2,
-					(y2_0 > y2) ? y2_0 : y2
-				};
-			}
-		}
-	}
-
-	if(!has_dirty_rect)
-	{
-		return {};
-	}
-
-	for(const auto& pixel_buffer : pixel_buffers)
-	{
-		if(!pixel_buffer->visible)
-		{
-			continue;
-		}
-
-		int update_width = pixel_buffer->width;
-		int update_height = pixel_buffer->height;
-
-		// Skip buffer if not inside window.
-		if(((int)width < pixel_buffer->x) ||
-		   ((int)height < pixel_buffer->y))
-		{
-			continue;
-		}
-
-		if(update_width > ((int)width - pixel_buffer->x))
-		{
-			update_width = ((int)width - pixel_buffer->x);
-		}
-
-		if(update_height > ((int)height - pixel_buffer->y))
-		{
-			update_height = ((int)height - pixel_buffer->y);
-		}
-
-		auto from_x  = (int)dirty_rect.x1 - pixel_buffer->x;
-		from_x = std::max(0, from_x);
-		auto from_y  = (int)dirty_rect.y1 - pixel_buffer->y;
-		from_y = std::max(0, from_y);
-
-		auto to_x = (int)dirty_rect.x2 - pixel_buffer->x;
-		to_x = std::min(to_x, (int)update_width);
-		auto to_y = (int)dirty_rect.y2 - pixel_buffer->y;
-		to_y = std::min(to_y, (int)update_height);
-
-		if(to_x < from_x)
-		{
-			continue;
-		}
-
-		for(int y = from_y; y < to_y; y++)
-		{
-			blendLine(pixel_buffer->x + from_x,
-			          pixel_buffer->y + y,
-			          pixel_buffer->getLine(from_x, y),
-			          to_x - from_x);
-		}
-	}
-
-	dirty_rect.x2 = std::min(width, dirty_rect.x2);
-	dirty_rect.y2 = std::min(height, dirty_rect.y2);
-
-	// Make sure we don't try to paint a rect backwards.
-	if(dirty_rect.x1 > dirty_rect.x2)
-	{
-		std::swap(dirty_rect.x1, dirty_rect.x2);
-	}
-
-	if(dirty_rect.y1 > dirty_rect.y2)
-	{
-		std::swap(dirty_rect.y1, dirty_rect.y2);
-	}
-
-	return dirty_rect;
-}
-
-PixelBufferAlpha::PixelBufferAlpha(std::size_t width, std::size_t height)
-{
-	realloc(width, height);
-}
-
-PixelBufferAlpha::~PixelBufferAlpha()
-{
-}
-
-void PixelBufferAlpha::realloc(std::size_t width, std::size_t height)
-{
-	buf_data.resize(width * height * 4);
-	buf = buf_data.data();
-	this->width = width;
-	this->height = height;
-	clear();
-}
-
-void PixelBufferAlpha::clear()
-{
-	std::memset(buf, 0, width * height * 4);
-}
-
-void PixelBufferAlpha::setPixel(std::size_t x, std::size_t y, const Colour& c)
-{
-	std::uint8_t* pixel = buf + (x + y * width) * 4;
-	std::memcpy(pixel, c.data(), 4);
-}
-
-void PixelBufferAlpha::writeLine(std::size_t x, std::size_t y,
-                                 const std::uint8_t* line, std::size_t len)
-{
-	if(x >= width || y >= height)
-	{
-		return;
-	}
-
-	if(x + len > width)
-	{
-		len = width - x;
-	}
-
-	auto offset = buf + (x + y * width) * 4;
-
-	std::memcpy(offset, line, len * 4);
-}
-
-
-// SIMD: https://github.com/WojciechMula/toys/blob/master/blend_32bpp/blend_32bpp.c
-// Alpha blending: http://en.wikipedia.org/wiki/Alpha_compositing
-
-void PixelBufferAlpha::blendLine(std::size_t x, std::size_t y,
-                                 const std::uint8_t* line, std::size_t len)
-{
-	if(x >= width || y >= height)
-	{
-		return;
-	}
-
-	if(x + len > width)
-	{
-		len = width - x;
-	}
-
-	int a, b;
-	std::uint8_t* target = buf + (x + y * width) * 4;
-	while(len)
-	{
-		if(line[3] == 0xff)
-		{
-			const std::uint8_t* end = line;
-			while(end[3] == 0xff && end < line + len * 4)
-			{
-				end += 4;
-			}
-			auto chunk_len = end - line;
-			std::memcpy(target, line, chunk_len);
-			line += chunk_len;
-			target += chunk_len;
-			len -= chunk_len / 4;
-			continue;
-		}
-		else if(line[3] == 0)
-		{
-			// Do nothing
-		}
-		else
-		{
-			a = line[3];
-			b = target[3] * (255 - a) / 255;
-
-			target[0] = (line[0] * a + target[0] * b) / (a + b);
-			target[1] = (line[1] * a + target[1] * b) / (a + b);
-			target[2] = (line[2] * a + target[2] * b) / (a + b);
-			target[3] = (int)target[3] + line[3] * (255 - target[3]) / 255;
-		}
-
-		line += 4;
-		target += 4;
-		--len;
-	}
-}
-
-void PixelBufferAlpha::addPixel(std::size_t x, std::size_t y, const Colour& c)
-{
-	if(x >= width || y >= height)
-	{
-		return; // out of bounds
-	}
-
-	const std::uint8_t* colour = c.data();
-
-	if(colour[3] == 0)
-	{
-		return;
-	}
-
-	int a, b;
-	std::uint8_t* target = buf + (x + y * width) * 4;
-
-	if(colour[3] == 0xff)
-	{
-		std::memcpy(target, colour, 4);
-	}
-	else
-	{
-		a = colour[3];
-		b = target[3] * (255 - a) / 255;
-
-		target[0] = (colour[0] * a + target[0] * b) / (a + b);
-		target[1] = (colour[1] * a + target[1] * b) / (a + b);
-		target[2] = (colour[2] * a + target[2] * b) / (a + b);
-		target[3] = (int)target[3] + colour[3] * (255 - target[3]) / 255;
-	}
-}
-
-const Colour& PixelBufferAlpha::pixel(std::size_t x, std::size_t y) const
-{
-	static Colour c;
-	std::memcpy(c.data(), buf + (x + y * width) * 4, 4);
-	return c;
-}
-
-const std::uint8_t* PixelBufferAlpha::getLine(std::size_t x, std::size_t y) const
-{
-	return buf + (x + y * width) * 4;
-}
-
-} // GUI::