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365864ccdf
Implemented Apple II hi-res bitmap conversion. Supports B&W and color. Uses essentially the same algorithm as CiderPress. Experimented with displaying non-text items in ListView. I assumed it would work, since it's the sort of thing WPF is designed to do, but it's always wise to approach with caution. Visualization Sets now show a 64x64 button as a placeholder for the eventual thumbnail. Some things were being flaky, which turned out to be because I wasn't Prepare()ing the plugins before using them from Edit Visualization. To make this a deterministic failure I added an Unprepare() call that tells the plugin that we're all done. NOTE: this breaks all existing plugins.
100 lines
3.1 KiB
C#
100 lines
3.1 KiB
C#
/*
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* Copyright 2019 faddenSoft
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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using System;
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using System.Collections.Generic;
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using System.Diagnostics;
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using System.Text;
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namespace PluginCommon {
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/// <summary>
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/// Bitmap with 8-bit palette indices, for use with plugin visualizers.
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/// </summary>
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[Serializable]
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public class VisBitmap8 : IVisualization2d {
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public const int MAX_DIMENSION = 4096;
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public int Width { get; private set; }
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public int Height { get; private set; }
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private byte[] mData;
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private int[] mPalette;
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private int mNextColor;
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public VisBitmap8(int width, int height) {
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Debug.Assert(width > 0 && width <= MAX_DIMENSION);
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Debug.Assert(height > 0 && height <= MAX_DIMENSION);
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Width = width;
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Height = height;
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mData = new byte[width * height];
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mPalette = new int[256];
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mNextColor = 0;
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}
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// IVisualization2d
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public int GetPixel(int x, int y) {
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byte pix = mData[x + y * Width];
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return mPalette[pix];
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}
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public void SetPixelIndex(int x, int y, byte colorIndex) {
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if (x < 0 || x >= Width || y < 0 || y >= Height) {
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throw new ArgumentException("Bad x/y: " + x + "," + y + " (width=" + Width +
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" height=" + Height + ")");
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}
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if (colorIndex < 0 || colorIndex >= mNextColor) {
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throw new ArgumentException("Bad color: " + colorIndex + " (nextCol=" +
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mNextColor + ")");
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}
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mData[x + y * Width] = colorIndex;
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}
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// IVisualization2d
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public byte[] GetPixels() {
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return mData;
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}
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// IVisualization2d
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public int[] GetPalette() {
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int[] pal = new int[mNextColor];
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for (int i = 0; i < mNextColor; i++) {
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pal[i] = mPalette[i];
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}
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return pal;
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}
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public void AddColor(int color) {
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if (mNextColor == 256) {
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Debug.WriteLine("Palette is full");
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return;
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}
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for (int i = 0; i < mNextColor; i++) {
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if (mPalette[i] == color) {
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Debug.WriteLine("Color " + color.ToString("x6") +
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" already exists in palette (" + i + ")");
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return;
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}
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}
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mPalette[mNextColor++] = color;
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}
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public void AddColor(byte a, byte r, byte g, byte b) {
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AddColor(Util.MakeARGB(a, r, g, b));
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}
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}
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}
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