mirror of
https://codeberg.org/dnkl/yambar.git
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particles/icon: init
Introduce a new icon particle. It follows the icon spec (https://specifications.freedesktop.org/icon-theme-spec/latest/index.html). Rendering logic is taken from fuzzel (using nanosvg + libpng), while loading logic is taken from sway. Standard usage is with `use-tag = false` which expands the provided string template and then loads the string as the icon name. There are settings to manually override the base paths, themes, etc. The second usage which is required for tray support is a special icon tag that transfers raw pixmaps. With `use-tag = true` it first expands the string, and then uses that output to find an icon pixmap tag. To reduce memory usage, themes are reference counted so they can be passed down the configuration stack without having to load them in multiple times. For programmability, a fallback particle can be specified if no icon/tag is found `fallback: ...`. And the new icon pixmap tag can be existence checked in map conditions using `+{tag_name}`. Future work to be done in follow up diffs: 1. Icon caching. Currently performs an icon lookup on each instantiation & a render on each refresh. 2. Theme caching. Changing theme directories results in a new "theme collection" being created resulting in the possibility of duplicated theme loading.
This commit is contained in:
Jordan Isaacs
parent
1a323c6d21
commit
6113f9b94e
51 changed files with 8473 additions and 40 deletions
730
3rd-party/nanosvg/example/23.svg
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730
3rd-party/nanosvg/example/23.svg
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97
3rd-party/nanosvg/example/drawing.svg
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97
3rd-party/nanosvg/example/drawing.svg
vendored
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|
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@ -0,0 +1,97 @@
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<?xml version="1.0" encoding="UTF-8" standalone="no"?>
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<!-- Created with Inkscape (http://www.inkscape.org/) -->
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<svg
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xmlns:dc="http://purl.org/dc/elements/1.1/"
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xmlns:cc="http://creativecommons.org/ns#"
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xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
|
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xmlns:svg="http://www.w3.org/2000/svg"
|
||||
xmlns="http://www.w3.org/2000/svg"
|
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xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
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xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
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width="1000"
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height="1000"
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id="svg2"
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version="1.1"
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inkscape:version="0.48.2 r9819"
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sodipodi:docname="drawing.svg">
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<defs
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id="defs4" />
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<sodipodi:namedview
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id="base"
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pagecolor="#ffffff"
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bordercolor="#666666"
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borderopacity="1.0"
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inkscape:pageopacity="0.0"
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inkscape:pageshadow="2"
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inkscape:zoom="0.35"
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inkscape:cx="375"
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inkscape:cy="520"
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inkscape:document-units="px"
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inkscape:current-layer="layer1"
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showgrid="false"
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inkscape:window-width="751"
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inkscape:window-height="578"
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inkscape:window-x="0"
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inkscape:window-y="22"
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inkscape:window-maximized="0" />
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<metadata
|
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id="metadata7">
|
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<rdf:RDF>
|
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<cc:Work
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rdf:about="">
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||||
<dc:format>image/svg+xml</dc:format>
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||||
<dc:type
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rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
|
||||
<dc:title></dc:title>
|
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</cc:Work>
|
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</rdf:RDF>
|
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</metadata>
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<g
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inkscape:label="Layer 1"
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inkscape:groupmode="layer"
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id="layer1"
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transform="translate(0,-52.362183)">
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<path
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style="fill:#ff5555;stroke:#000000;stroke-width:10.62107277px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1"
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width="390.01697"
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height="200.70551"
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<path
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sodipodi:type="arc"
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style="fill:#00ffff"
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id="path3008"
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sodipodi:cx="157.14285"
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<rect
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style="fill:#00ff00"
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id="rect3010"
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width="371.42856"
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height="145.71428"
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x="261.66104"
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y="945.44141"
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transform="matrix(0.948958,-0.31540248,0.31540248,0.948958,0,0)"
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ry="51.42857" />
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<path
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sodipodi:type="arc"
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style="fill:#00ff00"
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id="path3038"
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sodipodi:cx="200"
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</g>
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</svg>
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After Width: | Height: | Size: 3.4 KiB |
258
3rd-party/nanosvg/example/example1.c
vendored
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258
3rd-party/nanosvg/example/example1.c
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@ -0,0 +1,258 @@
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//
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// Copyright (c) 2013 Mikko Mononen memon@inside.org
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//
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// This software is provided 'as-is', without any express or implied
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// warranty. In no event will the authors be held liable for any damages
|
||||
// arising from the use of this software.
|
||||
// Permission is granted to anyone to use this software for any purpose,
|
||||
// including commercial applications, and to alter it and redistribute it
|
||||
// freely, subject to the following restrictions:
|
||||
// 1. The origin of this software must not be misrepresented; you must not
|
||||
// claim that you wrote the original software. If you use this software
|
||||
// in a product, an acknowledgment in the product documentation would be
|
||||
// appreciated but is not required.
|
||||
// 2. Altered source versions must be plainly marked as such, and must not be
|
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// misrepresented as being the original software.
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||||
// 3. This notice may not be removed or altered from any source distribution.
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//
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#include <stdio.h>
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#include <string.h>
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#include <float.h>
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#include <GLFW/glfw3.h>
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#define NANOSVG_IMPLEMENTATION
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#include "nanosvg.h"
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NSVGimage* g_image = NULL;
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static unsigned char bgColor[4] = {205,202,200,255};
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static unsigned char lineColor[4] = {0,160,192,255};
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static float distPtSeg(float x, float y, float px, float py, float qx, float qy)
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{
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float pqx, pqy, dx, dy, d, t;
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pqx = qx-px;
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pqy = qy-py;
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dx = x-px;
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dy = y-py;
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d = pqx*pqx + pqy*pqy;
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t = pqx*dx + pqy*dy;
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if (d > 0) t /= d;
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if (t < 0) t = 0;
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else if (t > 1) t = 1;
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dx = px + t*pqx - x;
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dy = py + t*pqy - y;
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return dx*dx + dy*dy;
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}
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static void cubicBez(float x1, float y1, float x2, float y2,
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float x3, float y3, float x4, float y4,
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float tol, int level)
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{
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float x12,y12,x23,y23,x34,y34,x123,y123,x234,y234,x1234,y1234;
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float d;
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if (level > 12) return;
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x12 = (x1+x2)*0.5f;
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y12 = (y1+y2)*0.5f;
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x23 = (x2+x3)*0.5f;
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y23 = (y2+y3)*0.5f;
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x34 = (x3+x4)*0.5f;
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y34 = (y3+y4)*0.5f;
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x123 = (x12+x23)*0.5f;
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y123 = (y12+y23)*0.5f;
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x234 = (x23+x34)*0.5f;
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y234 = (y23+y34)*0.5f;
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x1234 = (x123+x234)*0.5f;
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y1234 = (y123+y234)*0.5f;
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d = distPtSeg(x1234, y1234, x1,y1, x4,y4);
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if (d > tol*tol) {
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cubicBez(x1,y1, x12,y12, x123,y123, x1234,y1234, tol, level+1);
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cubicBez(x1234,y1234, x234,y234, x34,y34, x4,y4, tol, level+1);
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} else {
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glVertex2f(x4, y4);
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}
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}
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void drawPath(float* pts, int npts, char closed, float tol)
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{
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int i;
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glBegin(GL_LINE_STRIP);
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glColor4ubv(lineColor);
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glVertex2f(pts[0], pts[1]);
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for (i = 0; i < npts-1; i += 3) {
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float* p = &pts[i*2];
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cubicBez(p[0],p[1], p[2],p[3], p[4],p[5], p[6],p[7], tol, 0);
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}
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if (closed) {
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glVertex2f(pts[0], pts[1]);
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}
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glEnd();
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}
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void drawControlPts(float* pts, int npts)
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{
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int i;
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// Control lines
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glColor4ubv(lineColor);
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glBegin(GL_LINES);
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for (i = 0; i < npts-1; i += 3) {
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float* p = &pts[i*2];
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glVertex2f(p[0],p[1]);
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glVertex2f(p[2],p[3]);
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glVertex2f(p[4],p[5]);
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glVertex2f(p[6],p[7]);
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}
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glEnd();
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// Points
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glPointSize(6.0f);
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glColor4ubv(lineColor);
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glBegin(GL_POINTS);
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glVertex2f(pts[0],pts[1]);
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for (i = 0; i < npts-1; i += 3) {
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float* p = &pts[i*2];
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glVertex2f(p[6],p[7]);
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}
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glEnd();
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// Points
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glPointSize(3.0f);
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glBegin(GL_POINTS);
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glColor4ubv(bgColor);
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glVertex2f(pts[0],pts[1]);
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for (i = 0; i < npts-1; i += 3) {
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float* p = &pts[i*2];
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glColor4ubv(lineColor);
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glVertex2f(p[2],p[3]);
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glVertex2f(p[4],p[5]);
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glColor4ubv(bgColor);
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glVertex2f(p[6],p[7]);
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}
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glEnd();
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}
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void drawframe(GLFWwindow* window)
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{
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int width = 0, height = 0;
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float view[4], cx, cy, hw, hh, aspect, px;
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NSVGshape* shape;
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NSVGpath* path;
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glfwSetInputMode(window, GLFW_CURSOR, GLFW_CURSOR_NORMAL);
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glfwGetFramebufferSize(window, &width, &height);
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glViewport(0, 0, width, height);
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glClearColor(220.0f/255.0f, 220.0f/255.0f, 220.0f/255.0f, 1.0f);
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glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
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glEnable(GL_BLEND);
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glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
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glDisable(GL_TEXTURE_2D);
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glMatrixMode(GL_PROJECTION);
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glLoadIdentity();
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// Fit view to bounds
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cx = g_image->width*0.5f;
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cy = g_image->height*0.5f;
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hw = g_image->width*0.5f;
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hh = g_image->height*0.5f;
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if (width/hw < height/hh) {
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aspect = (float)height / (float)width;
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view[0] = cx - hw * 1.2f;
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view[2] = cx + hw * 1.2f;
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view[1] = cy - hw * 1.2f * aspect;
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view[3] = cy + hw * 1.2f * aspect;
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} else {
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aspect = (float)width / (float)height;
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view[0] = cx - hh * 1.2f * aspect;
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view[2] = cx + hh * 1.2f * aspect;
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view[1] = cy - hh * 1.2f;
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view[3] = cy + hh * 1.2f;
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}
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// Size of one pixel.
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px = (view[2] - view[1]) / (float)width;
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glOrtho(view[0], view[2], view[3], view[1], -1, 1);
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glMatrixMode(GL_MODELVIEW);
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glLoadIdentity();
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glDisable(GL_DEPTH_TEST);
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glColor4ub(255,255,255,255);
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glEnable(GL_BLEND);
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glBlendFunc(GL_SRC_ALPHA,GL_ONE_MINUS_SRC_ALPHA);
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// Draw bounds
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glColor4ub(0,0,0,64);
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glBegin(GL_LINE_LOOP);
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glVertex2f(0, 0);
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glVertex2f(g_image->width, 0);
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glVertex2f(g_image->width, g_image->height);
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glVertex2f(0, g_image->height);
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glEnd();
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for (shape = g_image->shapes; shape != NULL; shape = shape->next) {
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for (path = shape->paths; path != NULL; path = path->next) {
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drawPath(path->pts, path->npts, path->closed, px * 1.5f);
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drawControlPts(path->pts, path->npts);
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}
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}
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glfwSwapBuffers(window);
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}
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void resizecb(GLFWwindow* window, int width, int height)
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{
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// Update and render
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NSVG_NOTUSED(width);
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NSVG_NOTUSED(height);
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drawframe(window);
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}
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int main()
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{
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GLFWwindow* window;
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const GLFWvidmode* mode;
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if (!glfwInit())
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return -1;
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mode = glfwGetVideoMode(glfwGetPrimaryMonitor());
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window = glfwCreateWindow(mode->width - 40, mode->height - 80, "Nano SVG", NULL, NULL);
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if (!window)
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{
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printf("Could not open window\n");
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glfwTerminate();
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return -1;
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}
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glfwSetFramebufferSizeCallback(window, resizecb);
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glfwMakeContextCurrent(window);
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glEnable(GL_POINT_SMOOTH);
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glEnable(GL_LINE_SMOOTH);
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g_image = nsvgParseFromFile("../example/nano.svg", "px", 96.0f);
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if (g_image == NULL) {
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printf("Could not open SVG image.\n");
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glfwTerminate();
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return -1;
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}
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while (!glfwWindowShouldClose(window))
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{
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drawframe(window);
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glfwPollEvents();
|
||||
}
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||||
|
||||
nsvgDelete(g_image);
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glfwTerminate();
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return 0;
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||||
}
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69
3rd-party/nanosvg/example/example2.c
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Normal file
69
3rd-party/nanosvg/example/example2.c
vendored
Normal file
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@ -0,0 +1,69 @@
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//
|
||||
// Copyright (c) 2013 Mikko Mononen memon@inside.org
|
||||
//
|
||||
// This software is provided 'as-is', without any express or implied
|
||||
// warranty. In no event will the authors be held liable for any damages
|
||||
// arising from the use of this software.
|
||||
// Permission is granted to anyone to use this software for any purpose,
|
||||
// including commercial applications, and to alter it and redistribute it
|
||||
// freely, subject to the following restrictions:
|
||||
// 1. The origin of this software must not be misrepresented; you must not
|
||||
// claim that you wrote the original software. If you use this software
|
||||
// in a product, an acknowledgment in the product documentation would be
|
||||
// appreciated but is not required.
|
||||
// 2. Altered source versions must be plainly marked as such, and must not be
|
||||
// misrepresented as being the original software.
|
||||
// 3. This notice may not be removed or altered from any source distribution.
|
||||
//
|
||||
|
||||
#include <stdio.h>
|
||||
#include <string.h>
|
||||
#include <float.h>
|
||||
#define STB_IMAGE_WRITE_IMPLEMENTATION
|
||||
#include "stb_image_write.h"
|
||||
#define NANOSVG_IMPLEMENTATION
|
||||
#include "nanosvg.h"
|
||||
#define NANOSVGRAST_IMPLEMENTATION
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||||
#include "nanosvgrast.h"
|
||||
|
||||
int main()
|
||||
{
|
||||
NSVGimage *image = NULL;
|
||||
NSVGrasterizer *rast = NULL;
|
||||
unsigned char* img = NULL;
|
||||
int w, h;
|
||||
const char* filename = "../example/23.svg";
|
||||
|
||||
printf("parsing %s\n", filename);
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||||
image = nsvgParseFromFile(filename, "px", 96.0f);
|
||||
if (image == NULL) {
|
||||
printf("Could not open SVG image.\n");
|
||||
goto error;
|
||||
}
|
||||
w = (int)image->width;
|
||||
h = (int)image->height;
|
||||
|
||||
rast = nsvgCreateRasterizer();
|
||||
if (rast == NULL) {
|
||||
printf("Could not init rasterizer.\n");
|
||||
goto error;
|
||||
}
|
||||
|
||||
img = malloc(w*h*4);
|
||||
if (img == NULL) {
|
||||
printf("Could not alloc image buffer.\n");
|
||||
goto error;
|
||||
}
|
||||
|
||||
printf("rasterizing image %d x %d\n", w, h);
|
||||
nsvgRasterize(rast, image, 0,0,1, img, w, h, w*4);
|
||||
|
||||
printf("writing svg.png\n");
|
||||
stbi_write_png("svg.png", w, h, 4, img, w*4);
|
||||
|
||||
error:
|
||||
nsvgDeleteRasterizer(rast);
|
||||
nsvgDelete(image);
|
||||
|
||||
return 0;
|
||||
}
|
||||
27
3rd-party/nanosvg/example/nano.svg
vendored
Normal file
27
3rd-party/nanosvg/example/nano.svg
vendored
Normal file
|
|
@ -0,0 +1,27 @@
|
|||
<?xml version="1.0" encoding="utf-8"?>
|
||||
<!-- Generator: Adobe Illustrator 13.0.0, SVG Export Plug-In . SVG Version: 6.00 Build 14948) -->
|
||||
<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
|
||||
<svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
|
||||
width="640px" height="480px" viewBox="0 0 640 480" enable-background="new 0 0 640 480" xml:space="preserve">
|
||||
<path d="M282.658,250.271c0,5.31-1.031,10.156-3.087,14.543c-2.059,4.387-4.984,8.152-8.774,11.293
|
||||
c-3.793,3.144-8.477,5.58-14.055,7.312c-5.581,1.731-11.836,2.601-18.767,2.601c-9.968,0-18.605-1.572-25.917-4.713
|
||||
s-13.299-6.986-17.955-11.536l13.812-15.111c4.116,3.684,8.584,6.499,13.405,8.449c4.819,1.95,9.993,2.925,15.518,2.925
|
||||
c5.525,0,9.856-1.219,12.999-3.656c3.141-2.438,4.712-5.769,4.712-9.993c0-2.056-0.3-3.844-0.894-5.361
|
||||
c-0.596-1.517-1.653-2.925-3.168-4.226c-1.518-1.3-3.549-2.519-6.093-3.655c-2.546-1.138-5.768-2.301-9.668-3.494
|
||||
c-6.5-2.056-11.943-4.25-16.33-6.58c-4.387-2.328-7.937-4.9-10.643-7.719c-2.709-2.815-4.659-5.931-5.849-9.343
|
||||
c-1.193-3.412-1.788-7.23-1.788-11.455c0-5.2,1.082-9.831,3.25-13.893c2.166-4.062,5.144-7.5,8.937-10.318
|
||||
c3.791-2.815,8.178-4.956,13.162-6.418c4.981-1.462,10.343-2.193,16.086-2.193c8.449,0,15.842,1.247,22.179,3.737
|
||||
c6.337,2.493,11.997,6.121,16.98,10.887l-12.674,14.624c-7.583-6.281-15.655-9.424-24.21-9.424c-4.875,0-8.721,0.95-11.537,2.844
|
||||
c-2.818,1.896-4.225,4.578-4.225,8.043c0,1.843,0.297,3.412,0.894,4.712c0.594,1.3,1.65,2.519,3.168,3.656
|
||||
c1.516,1.137,3.656,2.249,6.418,3.331c2.763,1.084,6.309,2.33,10.643,3.736c5.306,1.734,10.046,3.631,14.218,5.688
|
||||
c4.169,2.06,7.662,4.524,10.48,7.394c2.815,2.871,4.981,6.174,6.5,9.911C281.898,240.603,282.658,245.071,282.658,250.271z
|
||||
M335.953,260.833l20.637-90.181h27.46l-32.011,112.604h-33.634l-32.173-112.604h28.598l20.311,90.181H335.953z M437.832,286.019
|
||||
c-16.357,0-28.896-5.01-37.615-15.03c-8.722-10.019-13.081-24.779-13.081-44.278c0-9.531,1.407-17.98,4.225-25.348
|
||||
c2.815-7.366,6.688-13.54,11.618-18.524c4.928-4.981,10.668-8.747,17.223-11.293c6.555-2.544,13.568-3.818,21.043-3.818
|
||||
c8.23,0,15.436,1.3,21.611,3.899c6.174,2.6,11.537,5.959,16.086,10.075l-14.137,14.624c-3.467-3.032-6.906-5.281-10.318-6.744
|
||||
s-7.393-2.193-11.941-2.193c-4.01,0-7.693,0.731-11.051,2.193s-6.256,3.793-8.691,6.987c-2.438,3.196-4.334,7.287-5.688,12.268
|
||||
c-1.355,4.984-2.031,10.996-2.031,18.037c0,7.367,0.486,13.567,1.463,18.604c0.975,5.037,2.408,9.1,4.305,12.187
|
||||
c1.895,3.087,4.307,5.309,7.23,6.662c2.926,1.355,6.338,2.031,10.238,2.031c5.631,0,10.613-1.244,14.947-3.737v-25.186h-14.785
|
||||
l-2.6-18.849h43.547v55.57c-5.85,3.793-12.297,6.718-19.336,8.774C453.051,284.987,445.631,286.019,437.832,286.019z M523.5,151.5
|
||||
c0-6.627-5.373-12-12-12h-343c-6.627,0-12,5.373-12,12v150c0,6.627,5.373,12,12,12h343c6.627,0,12-5.373,12-12V151.5z"/>
|
||||
</svg>
|
||||
|
After Width: | Height: | Size: 2.8 KiB |
BIN
3rd-party/nanosvg/example/screenshot-1.png
vendored
Normal file
BIN
3rd-party/nanosvg/example/screenshot-1.png
vendored
Normal file
Binary file not shown.
|
After Width: | Height: | Size: 59 KiB |
BIN
3rd-party/nanosvg/example/screenshot-2.png
vendored
Normal file
BIN
3rd-party/nanosvg/example/screenshot-2.png
vendored
Normal file
Binary file not shown.
|
After Width: | Height: | Size: 154 KiB |
511
3rd-party/nanosvg/example/stb_image_write.h
vendored
Normal file
511
3rd-party/nanosvg/example/stb_image_write.h
vendored
Normal file
|
|
@ -0,0 +1,511 @@
|
|||
/* stbiw-0.92 - public domain - http://nothings.org/stb/stb_image_write.h
|
||||
writes out PNG/BMP/TGA images to C stdio - Sean Barrett 2010
|
||||
no warranty implied; use at your own risk
|
||||
|
||||
|
||||
Before including,
|
||||
|
||||
#define STB_IMAGE_WRITE_IMPLEMENTATION
|
||||
|
||||
in the file that you want to have the implementation.
|
||||
|
||||
|
||||
ABOUT:
|
||||
|
||||
This header file is a library for writing images to C stdio. It could be
|
||||
adapted to write to memory or a general streaming interface; let me know.
|
||||
|
||||
The PNG output is not optimal; it is 20-50% larger than the file
|
||||
written by a decent optimizing implementation. This library is designed
|
||||
for source code compactness and simplicitly, not optimal image file size
|
||||
or run-time performance.
|
||||
|
||||
USAGE:
|
||||
|
||||
There are three functions, one for each image file format:
|
||||
|
||||
int stbi_write_png(char const *filename, int w, int h, int comp, const void *data, int stride_in_bytes);
|
||||
int stbi_write_bmp(char const *filename, int w, int h, int comp, const void *data);
|
||||
int stbi_write_tga(char const *filename, int w, int h, int comp, const void *data);
|
||||
|
||||
Each function returns 0 on failure and non-0 on success.
|
||||
|
||||
The functions create an image file defined by the parameters. The image
|
||||
is a rectangle of pixels stored from left-to-right, top-to-bottom.
|
||||
Each pixel contains 'comp' channels of data stored interleaved with 8-bits
|
||||
per channel, in the following order: 1=Y, 2=YA, 3=RGB, 4=RGBA. (Y is
|
||||
monochrome color.) The rectangle is 'w' pixels wide and 'h' pixels tall.
|
||||
The *data pointer points to the first byte of the top-left-most pixel.
|
||||
For PNG, "stride_in_bytes" is the distance in bytes from the first byte of
|
||||
a row of pixels to the first byte of the next row of pixels.
|
||||
|
||||
PNG creates output files with the same number of components as the input.
|
||||
The BMP and TGA formats expand Y to RGB in the file format. BMP does not
|
||||
output alpha.
|
||||
|
||||
PNG supports writing rectangles of data even when the bytes storing rows of
|
||||
data are not consecutive in memory (e.g. sub-rectangles of a larger image),
|
||||
by supplying the stride between the beginning of adjacent rows. The other
|
||||
formats do not. (Thus you cannot write a native-format BMP through the BMP
|
||||
writer, both because it is in BGR order and because it may have padding
|
||||
at the end of the line.)
|
||||
*/
|
||||
|
||||
#ifndef INCLUDE_STB_IMAGE_WRITE_H
|
||||
#define INCLUDE_STB_IMAGE_WRITE_H
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif
|
||||
|
||||
extern int stbi_write_png(char const *filename, int w, int h, int comp, const void *data, int stride_in_bytes);
|
||||
extern int stbi_write_bmp(char const *filename, int w, int h, int comp, const void *data);
|
||||
extern int stbi_write_tga(char const *filename, int w, int h, int comp, const void *data);
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
||||
|
||||
#endif//INCLUDE_STB_IMAGE_WRITE_H
|
||||
|
||||
#ifdef STB_IMAGE_WRITE_IMPLEMENTATION
|
||||
|
||||
#include <stdarg.h>
|
||||
#include <stdlib.h>
|
||||
#include <stdio.h>
|
||||
#include <string.h>
|
||||
#include <assert.h>
|
||||
|
||||
typedef unsigned int stbiw_uint32;
|
||||
typedef int stb_image_write_test[sizeof(stbiw_uint32)==4 ? 1 : -1];
|
||||
|
||||
static void writefv(FILE *f, const char *fmt, va_list v)
|
||||
{
|
||||
while (*fmt) {
|
||||
switch (*fmt++) {
|
||||
case ' ': break;
|
||||
case '1': { unsigned char x = (unsigned char) va_arg(v, int); fputc(x,f); break; }
|
||||
case '2': { int x = va_arg(v,int); unsigned char b[2];
|
||||
b[0] = (unsigned char) x; b[1] = (unsigned char) (x>>8);
|
||||
fwrite(b,2,1,f); break; }
|
||||
case '4': { stbiw_uint32 x = va_arg(v,int); unsigned char b[4];
|
||||
b[0]=(unsigned char)x; b[1]=(unsigned char)(x>>8);
|
||||
b[2]=(unsigned char)(x>>16); b[3]=(unsigned char)(x>>24);
|
||||
fwrite(b,4,1,f); break; }
|
||||
default:
|
||||
assert(0);
|
||||
return;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
static void write3(FILE *f, unsigned char a, unsigned char b, unsigned char c)
|
||||
{
|
||||
unsigned char arr[3];
|
||||
arr[0] = a, arr[1] = b, arr[2] = c;
|
||||
fwrite(arr, 3, 1, f);
|
||||
}
|
||||
|
||||
static void write_pixels(FILE *f, int rgb_dir, int vdir, int x, int y, int comp, void *data, int write_alpha, int scanline_pad)
|
||||
{
|
||||
unsigned char bg[3] = { 255, 0, 255}, px[3];
|
||||
stbiw_uint32 zero = 0;
|
||||
int i,j,k, j_end;
|
||||
|
||||
if (y <= 0)
|
||||
return;
|
||||
|
||||
if (vdir < 0)
|
||||
j_end = -1, j = y-1;
|
||||
else
|
||||
j_end = y, j = 0;
|
||||
|
||||
for (; j != j_end; j += vdir) {
|
||||
for (i=0; i < x; ++i) {
|
||||
unsigned char *d = (unsigned char *) data + (j*x+i)*comp;
|
||||
if (write_alpha < 0)
|
||||
fwrite(&d[comp-1], 1, 1, f);
|
||||
switch (comp) {
|
||||
case 1:
|
||||
case 2: write3(f, d[0],d[0],d[0]);
|
||||
break;
|
||||
case 4:
|
||||
if (!write_alpha) {
|
||||
// composite against pink background
|
||||
for (k=0; k < 3; ++k)
|
||||
px[k] = bg[k] + ((d[k] - bg[k]) * d[3])/255;
|
||||
write3(f, px[1-rgb_dir],px[1],px[1+rgb_dir]);
|
||||
break;
|
||||
}
|
||||
/* FALLTHROUGH */
|
||||
case 3:
|
||||
write3(f, d[1-rgb_dir],d[1],d[1+rgb_dir]);
|
||||
break;
|
||||
}
|
||||
if (write_alpha > 0)
|
||||
fwrite(&d[comp-1], 1, 1, f);
|
||||
}
|
||||
fwrite(&zero,scanline_pad,1,f);
|
||||
}
|
||||
}
|
||||
|
||||
static int outfile(char const *filename, int rgb_dir, int vdir, int x, int y, int comp, void *data, int alpha, int pad, const char *fmt, ...)
|
||||
{
|
||||
FILE *f;
|
||||
if (y < 0 || x < 0) return 0;
|
||||
f = fopen(filename, "wb");
|
||||
if (f) {
|
||||
va_list v;
|
||||
va_start(v, fmt);
|
||||
writefv(f, fmt, v);
|
||||
va_end(v);
|
||||
write_pixels(f,rgb_dir,vdir,x,y,comp,data,alpha,pad);
|
||||
fclose(f);
|
||||
}
|
||||
return f != NULL;
|
||||
}
|
||||
|
||||
int stbi_write_bmp(char const *filename, int x, int y, int comp, const void *data)
|
||||
{
|
||||
int pad = (-x*3) & 3;
|
||||
return outfile(filename,-1,-1,x,y,comp,(void *) data,0,pad,
|
||||
"11 4 22 4" "4 44 22 444444",
|
||||
'B', 'M', 14+40+(x*3+pad)*y, 0,0, 14+40, // file header
|
||||
40, x,y, 1,24, 0,0,0,0,0,0); // bitmap header
|
||||
}
|
||||
|
||||
int stbi_write_tga(char const *filename, int x, int y, int comp, const void *data)
|
||||
{
|
||||
int has_alpha = !(comp & 1);
|
||||
return outfile(filename, -1,-1, x, y, comp, (void *) data, has_alpha, 0,
|
||||
"111 221 2222 11", 0,0,2, 0,0,0, 0,0,x,y, 24+8*has_alpha, 8*has_alpha);
|
||||
}
|
||||
|
||||
// stretchy buffer; stbi__sbpush() == vector<>::push_back() -- stbi__sbcount() == vector<>::size()
|
||||
#define stbi__sbraw(a) ((int *) (a) - 2)
|
||||
#define stbi__sbm(a) stbi__sbraw(a)[0]
|
||||
#define stbi__sbn(a) stbi__sbraw(a)[1]
|
||||
|
||||
#define stbi__sbneedgrow(a,n) ((a)==0 || stbi__sbn(a)+n >= stbi__sbm(a))
|
||||
#define stbi__sbmaybegrow(a,n) (stbi__sbneedgrow(a,(n)) ? stbi__sbgrow(a,n) : 0)
|
||||
#define stbi__sbgrow(a,n) stbi__sbgrowf((void **) &(a), (n), sizeof(*(a)))
|
||||
|
||||
#define stbi__sbpush(a, v) (stbi__sbmaybegrow(a,1), (a)[stbi__sbn(a)++] = (v))
|
||||
#define stbi__sbcount(a) ((a) ? stbi__sbn(a) : 0)
|
||||
#define stbi__sbfree(a) ((a) ? free(stbi__sbraw(a)),0 : 0)
|
||||
|
||||
static void *stbi__sbgrowf(void **arr, int increment, int itemsize)
|
||||
{
|
||||
int m = *arr ? 2*stbi__sbm(*arr)+increment : increment+1;
|
||||
void *p = realloc(*arr ? stbi__sbraw(*arr) : 0, itemsize * m + sizeof(int)*2);
|
||||
assert(p);
|
||||
if (p) {
|
||||
if (!*arr) ((int *) p)[1] = 0;
|
||||
*arr = (void *) ((int *) p + 2);
|
||||
stbi__sbm(*arr) = m;
|
||||
}
|
||||
return *arr;
|
||||
}
|
||||
|
||||
static unsigned char *stbi__zlib_flushf(unsigned char *data, unsigned int *bitbuffer, int *bitcount)
|
||||
{
|
||||
while (*bitcount >= 8) {
|
||||
stbi__sbpush(data, (unsigned char) *bitbuffer);
|
||||
*bitbuffer >>= 8;
|
||||
*bitcount -= 8;
|
||||
}
|
||||
return data;
|
||||
}
|
||||
|
||||
static int stbi__zlib_bitrev(int code, int codebits)
|
||||
{
|
||||
int res=0;
|
||||
while (codebits--) {
|
||||
res = (res << 1) | (code & 1);
|
||||
code >>= 1;
|
||||
}
|
||||
return res;
|
||||
}
|
||||
|
||||
static unsigned int stbi__zlib_countm(unsigned char *a, unsigned char *b, int limit)
|
||||
{
|
||||
int i;
|
||||
for (i=0; i < limit && i < 258; ++i)
|
||||
if (a[i] != b[i]) break;
|
||||
return i;
|
||||
}
|
||||
|
||||
static unsigned int stbi__zhash(unsigned char *data)
|
||||
{
|
||||
stbiw_uint32 hash = data[0] + (data[1] << 8) + (data[2] << 16);
|
||||
hash ^= hash << 3;
|
||||
hash += hash >> 5;
|
||||
hash ^= hash << 4;
|
||||
hash += hash >> 17;
|
||||
hash ^= hash << 25;
|
||||
hash += hash >> 6;
|
||||
return hash;
|
||||
}
|
||||
|
||||
#define stbi__zlib_flush() (out = stbi__zlib_flushf(out, &bitbuf, &bitcount))
|
||||
#define stbi__zlib_add(code,codebits) \
|
||||
(bitbuf |= (code) << bitcount, bitcount += (codebits), stbi__zlib_flush())
|
||||
#define stbi__zlib_huffa(b,c) stbi__zlib_add(stbi__zlib_bitrev(b,c),c)
|
||||
// default huffman tables
|
||||
#define stbi__zlib_huff1(n) stbi__zlib_huffa(0x30 + (n), 8)
|
||||
#define stbi__zlib_huff2(n) stbi__zlib_huffa(0x190 + (n)-144, 9)
|
||||
#define stbi__zlib_huff3(n) stbi__zlib_huffa(0 + (n)-256,7)
|
||||
#define stbi__zlib_huff4(n) stbi__zlib_huffa(0xc0 + (n)-280,8)
|
||||
#define stbi__zlib_huff(n) ((n) <= 143 ? stbi__zlib_huff1(n) : (n) <= 255 ? stbi__zlib_huff2(n) : (n) <= 279 ? stbi__zlib_huff3(n) : stbi__zlib_huff4(n))
|
||||
#define stbi__zlib_huffb(n) ((n) <= 143 ? stbi__zlib_huff1(n) : stbi__zlib_huff2(n))
|
||||
|
||||
#define stbi__ZHASH 16384
|
||||
|
||||
unsigned char * stbi_zlib_compress(unsigned char *data, int data_len, int *out_len, int quality)
|
||||
{
|
||||
static unsigned short lengthc[] = { 3,4,5,6,7,8,9,10,11,13,15,17,19,23,27,31,35,43,51,59,67,83,99,115,131,163,195,227,258, 259 };
|
||||
static unsigned char lengtheb[]= { 0,0,0,0,0,0,0, 0, 1, 1, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 0 };
|
||||
static unsigned short distc[] = { 1,2,3,4,5,7,9,13,17,25,33,49,65,97,129,193,257,385,513,769,1025,1537,2049,3073,4097,6145,8193,12289,16385,24577, 32768 };
|
||||
static unsigned char disteb[] = { 0,0,0,0,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,12,12,13,13 };
|
||||
unsigned int bitbuf=0;
|
||||
int i,j, bitcount=0;
|
||||
unsigned char *out = NULL;
|
||||
unsigned char **hash_table[stbi__ZHASH]; // 64KB on the stack!
|
||||
if (quality < 5) quality = 5;
|
||||
|
||||
stbi__sbpush(out, 0x78); // DEFLATE 32K window
|
||||
stbi__sbpush(out, 0x5e); // FLEVEL = 1
|
||||
stbi__zlib_add(1,1); // BFINAL = 1
|
||||
stbi__zlib_add(1,2); // BTYPE = 1 -- fixed huffman
|
||||
|
||||
for (i=0; i < stbi__ZHASH; ++i)
|
||||
hash_table[i] = NULL;
|
||||
|
||||
i=0;
|
||||
while (i < data_len-3) {
|
||||
// hash next 3 bytes of data to be compressed
|
||||
int h = stbi__zhash(data+i)&(stbi__ZHASH-1), best=3;
|
||||
unsigned char *bestloc = 0;
|
||||
unsigned char **hlist = hash_table[h];
|
||||
int n = stbi__sbcount(hlist);
|
||||
for (j=0; j < n; ++j) {
|
||||
if (hlist[j]-data > i-32768) { // if entry lies within window
|
||||
int d = stbi__zlib_countm(hlist[j], data+i, data_len-i);
|
||||
if (d >= best) best=d,bestloc=hlist[j];
|
||||
}
|
||||
}
|
||||
// when hash table entry is too long, delete half the entries
|
||||
if (hash_table[h] && stbi__sbn(hash_table[h]) == 2*quality) {
|
||||
memcpy(hash_table[h], hash_table[h]+quality, sizeof(hash_table[h][0])*quality);
|
||||
stbi__sbn(hash_table[h]) = quality;
|
||||
}
|
||||
stbi__sbpush(hash_table[h],data+i);
|
||||
|
||||
if (bestloc) {
|
||||
// "lazy matching" - check match at *next* byte, and if it's better, do cur byte as literal
|
||||
h = stbi__zhash(data+i+1)&(stbi__ZHASH-1);
|
||||
hlist = hash_table[h];
|
||||
n = stbi__sbcount(hlist);
|
||||
for (j=0; j < n; ++j) {
|
||||
if (hlist[j]-data > i-32767) {
|
||||
int e = stbi__zlib_countm(hlist[j], data+i+1, data_len-i-1);
|
||||
if (e > best) { // if next match is better, bail on current match
|
||||
bestloc = NULL;
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if (bestloc) {
|
||||
int d = data+i - bestloc; // distance back
|
||||
assert(d <= 32767 && best <= 258);
|
||||
for (j=0; best > lengthc[j+1]-1; ++j);
|
||||
stbi__zlib_huff(j+257);
|
||||
if (lengtheb[j]) stbi__zlib_add(best - lengthc[j], lengtheb[j]);
|
||||
for (j=0; d > distc[j+1]-1; ++j);
|
||||
stbi__zlib_add(stbi__zlib_bitrev(j,5),5);
|
||||
if (disteb[j]) stbi__zlib_add(d - distc[j], disteb[j]);
|
||||
i += best;
|
||||
} else {
|
||||
stbi__zlib_huffb(data[i]);
|
||||
++i;
|
||||
}
|
||||
}
|
||||
// write out final bytes
|
||||
for (;i < data_len; ++i)
|
||||
stbi__zlib_huffb(data[i]);
|
||||
stbi__zlib_huff(256); // end of block
|
||||
// pad with 0 bits to byte boundary
|
||||
while (bitcount)
|
||||
stbi__zlib_add(0,1);
|
||||
|
||||
for (i=0; i < stbi__ZHASH; ++i)
|
||||
(void) stbi__sbfree(hash_table[i]);
|
||||
|
||||
{
|
||||
// compute adler32 on input
|
||||
unsigned int i=0, s1=1, s2=0, blocklen = data_len % 5552;
|
||||
int j=0;
|
||||
while (j < data_len) {
|
||||
for (i=0; i < blocklen; ++i) s1 += data[j+i], s2 += s1;
|
||||
s1 %= 65521, s2 %= 65521;
|
||||
j += blocklen;
|
||||
blocklen = 5552;
|
||||
}
|
||||
stbi__sbpush(out, (unsigned char) (s2 >> 8));
|
||||
stbi__sbpush(out, (unsigned char) s2);
|
||||
stbi__sbpush(out, (unsigned char) (s1 >> 8));
|
||||
stbi__sbpush(out, (unsigned char) s1);
|
||||
}
|
||||
*out_len = stbi__sbn(out);
|
||||
// make returned pointer freeable
|
||||
memmove(stbi__sbraw(out), out, *out_len);
|
||||
return (unsigned char *) stbi__sbraw(out);
|
||||
}
|
||||
|
||||
unsigned int stbi__crc32(unsigned char *buffer, int len)
|
||||
{
|
||||
static unsigned int crc_table[256];
|
||||
unsigned int crc = ~0u;
|
||||
int i,j;
|
||||
if (crc_table[1] == 0)
|
||||
for(i=0; i < 256; i++)
|
||||
for (crc_table[i]=i, j=0; j < 8; ++j)
|
||||
crc_table[i] = (crc_table[i] >> 1) ^ (crc_table[i] & 1 ? 0xedb88320 : 0);
|
||||
for (i=0; i < len; ++i)
|
||||
crc = (crc >> 8) ^ crc_table[buffer[i] ^ (crc & 0xff)];
|
||||
return ~crc;
|
||||
}
|
||||
|
||||
#define stbi__wpng4(o,a,b,c,d) ((o)[0]=(unsigned char)(a),(o)[1]=(unsigned char)(b),(o)[2]=(unsigned char)(c),(o)[3]=(unsigned char)(d),(o)+=4)
|
||||
#define stbi__wp32(data,v) stbi__wpng4(data, (v)>>24,(v)>>16,(v)>>8,(v));
|
||||
#define stbi__wptag(data,s) stbi__wpng4(data, s[0],s[1],s[2],s[3])
|
||||
|
||||
static void stbi__wpcrc(unsigned char **data, int len)
|
||||
{
|
||||
unsigned int crc = stbi__crc32(*data - len - 4, len+4);
|
||||
stbi__wp32(*data, crc);
|
||||
}
|
||||
|
||||
static unsigned char stbi__paeth(int a, int b, int c)
|
||||
{
|
||||
int p = a + b - c, pa = abs(p-a), pb = abs(p-b), pc = abs(p-c);
|
||||
if (pa <= pb && pa <= pc) return (unsigned char) a;
|
||||
if (pb <= pc) return (unsigned char) b;
|
||||
return (unsigned char) c;
|
||||
}
|
||||
|
||||
unsigned char *stbi_write_png_to_mem(unsigned char *pixels, int stride_bytes, int x, int y, int n, int *out_len)
|
||||
{
|
||||
int ctype[5] = { -1, 0, 4, 2, 6 };
|
||||
unsigned char sig[8] = { 137,80,78,71,13,10,26,10 };
|
||||
unsigned char *out,*o, *filt, *zlib;
|
||||
signed char *line_buffer;
|
||||
int i,j,k,p,zlen;
|
||||
|
||||
if (stride_bytes == 0)
|
||||
stride_bytes = x * n;
|
||||
|
||||
filt = (unsigned char *) malloc((x*n+1) * y); if (!filt) return 0;
|
||||
line_buffer = (signed char *) malloc(x * n); if (!line_buffer) { free(filt); return 0; }
|
||||
for (j=0; j < y; ++j) {
|
||||
static int mapping[] = { 0,1,2,3,4 };
|
||||
static int firstmap[] = { 0,1,0,5,6 };
|
||||
int *mymap = j ? mapping : firstmap;
|
||||
int best = 0, bestval = 0x7fffffff;
|
||||
for (p=0; p < 2; ++p) {
|
||||
for (k= p?best:0; k < 5; ++k) {
|
||||
int type = mymap[k],est=0;
|
||||
unsigned char *z = pixels + stride_bytes*j;
|
||||
for (i=0; i < n; ++i)
|
||||
switch (type) {
|
||||
case 0: line_buffer[i] = z[i]; break;
|
||||
case 1: line_buffer[i] = z[i]; break;
|
||||
case 2: line_buffer[i] = z[i] - z[i-stride_bytes]; break;
|
||||
case 3: line_buffer[i] = z[i] - (z[i-stride_bytes]>>1); break;
|
||||
case 4: line_buffer[i] = (signed char) (z[i] - stbi__paeth(0,z[i-stride_bytes],0)); break;
|
||||
case 5: line_buffer[i] = z[i]; break;
|
||||
case 6: line_buffer[i] = z[i]; break;
|
||||
}
|
||||
for (i=n; i < x*n; ++i) {
|
||||
switch (type) {
|
||||
case 0: line_buffer[i] = z[i]; break;
|
||||
case 1: line_buffer[i] = z[i] - z[i-n]; break;
|
||||
case 2: line_buffer[i] = z[i] - z[i-stride_bytes]; break;
|
||||
case 3: line_buffer[i] = z[i] - ((z[i-n] + z[i-stride_bytes])>>1); break;
|
||||
case 4: line_buffer[i] = z[i] - stbi__paeth(z[i-n], z[i-stride_bytes], z[i-stride_bytes-n]); break;
|
||||
case 5: line_buffer[i] = z[i] - (z[i-n]>>1); break;
|
||||
case 6: line_buffer[i] = z[i] - stbi__paeth(z[i-n], 0,0); break;
|
||||
}
|
||||
}
|
||||
if (p) break;
|
||||
for (i=0; i < x*n; ++i)
|
||||
est += abs((signed char) line_buffer[i]);
|
||||
if (est < bestval) { bestval = est; best = k; }
|
||||
}
|
||||
}
|
||||
// when we get here, best contains the filter type, and line_buffer contains the data
|
||||
filt[j*(x*n+1)] = (unsigned char) best;
|
||||
memcpy(filt+j*(x*n+1)+1, line_buffer, x*n);
|
||||
}
|
||||
free(line_buffer);
|
||||
zlib = stbi_zlib_compress(filt, y*( x*n+1), &zlen, 8); // increase 8 to get smaller but use more memory
|
||||
free(filt);
|
||||
if (!zlib) return 0;
|
||||
|
||||
// each tag requires 12 bytes of overhead
|
||||
out = (unsigned char *) malloc(8 + 12+13 + 12+zlen + 12);
|
||||
if (!out) return 0;
|
||||
*out_len = 8 + 12+13 + 12+zlen + 12;
|
||||
|
||||
o=out;
|
||||
memcpy(o,sig,8); o+= 8;
|
||||
stbi__wp32(o, 13); // header length
|
||||
stbi__wptag(o, "IHDR");
|
||||
stbi__wp32(o, x);
|
||||
stbi__wp32(o, y);
|
||||
*o++ = 8;
|
||||
*o++ = (unsigned char) ctype[n];
|
||||
*o++ = 0;
|
||||
*o++ = 0;
|
||||
*o++ = 0;
|
||||
stbi__wpcrc(&o,13);
|
||||
|
||||
stbi__wp32(o, zlen);
|
||||
stbi__wptag(o, "IDAT");
|
||||
memcpy(o, zlib, zlen); o += zlen; free(zlib);
|
||||
stbi__wpcrc(&o, zlen);
|
||||
|
||||
stbi__wp32(o,0);
|
||||
stbi__wptag(o, "IEND");
|
||||
stbi__wpcrc(&o,0);
|
||||
|
||||
assert(o == out + *out_len);
|
||||
|
||||
return out;
|
||||
}
|
||||
|
||||
int stbi_write_png(char const *filename, int x, int y, int comp, const void *data, int stride_bytes)
|
||||
{
|
||||
FILE *f;
|
||||
int len;
|
||||
unsigned char *png = stbi_write_png_to_mem((unsigned char *) data, stride_bytes, x, y, comp, &len);
|
||||
if (!png) return 0;
|
||||
f = fopen(filename, "wb");
|
||||
if (!f) { free(png); return 0; }
|
||||
fwrite(png, 1, len, f);
|
||||
fclose(f);
|
||||
free(png);
|
||||
return 1;
|
||||
}
|
||||
#endif // STB_IMAGE_WRITE_IMPLEMENTATION
|
||||
|
||||
/* Revision history
|
||||
|
||||
0.92 (2010-08-01)
|
||||
casts to unsigned char to fix warnings
|
||||
0.91 (2010-07-17)
|
||||
first public release
|
||||
0.90 first internal release
|
||||
*/
|
||||
Loading…
Add table
Add a link
Reference in a new issue