mirror of https://github.com/fltk/fltk
Added some test parameters for fine tuning of image tests. These parameters
are implemented as compiler macros and can only be edited manually to test different implementation details. git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3@8609 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
This commit is contained in:
Albrecht Schlosser
parent
ad50b753be
commit
2999acc1bb
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@ -3,7 +3,7 @@
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//
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// Unit tests for the Fast Light Tool Kit (FLTK).
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//
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// Copyright 1998-2010 by Bill Spitzak and others.
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// Copyright 1998-2011 by Bill Spitzak and others.
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//
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Library General Public
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@ -35,15 +35,31 @@
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//
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//------- test the image drawing capabilities of this implementation ----------
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//
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// Some parameters for fine tuning for developers - their
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// default values ought to be: CB=1, DX=0, LX=0, IMG=1
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#define CB (1) // 1 to show the checker board background for alpha images, 0 otherwise
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#define DX (0) // additional (undefined (0)) pixels per line, must be >= 0
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// ignored (irrelevant), if LX == 0 (see below)
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#define LX (0) // 0 for default: ld() = 0, i.e. ld() defaults (internally) to w()*d()
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// +1: ld() = (w() + DX) * d()
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// -1 to flip image vertically: ld() = - ((w() + DX) * d())
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#define IMG (1) // 1 to use Fl_RGB_Image for drawing images,
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// 0 to use fl_draw_image() instead.
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// Note: as of April 2011, only 1 (Fl_RGB_Image) works correctly with alpha
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// channel, 0 (fl_draw_image()) ignores the alpha channel (FLTK 1.3.0).
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// There are plans to support alpha in fl_draw_image() in FLTK 1.3.x,
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// but not in FLTK 1.1.x .
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class ImageTest : public Fl_Box {
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public:
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static Fl_Widget *create() {
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int x, y;
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uchar *dg, *dga, *drgb, *drgba;
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dg = img_gray = (uchar*)malloc(128*128*1);
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dga = img_gray_a = (uchar*)malloc(128*128*2);
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drgb = img_rgb = (uchar*)malloc(128*128*3);
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drgba = img_rgba = (uchar*)malloc(128*128*4);
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dg = img_gray = (uchar*)malloc((128+DX)*128*1);
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dga = img_gray_a = (uchar*)malloc((128+DX)*128*2);
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drgb = img_rgb = (uchar*)malloc((128+DX)*128*3);
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drgba = img_rgba = (uchar*)malloc((128+DX)*128*4);
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for (y=0; y<128; y++) {
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for (x=0; x<128; x++) {
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*drgba++ = *drgb++ = *dga++ = *dg++ = y<<1;
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@ -51,17 +67,33 @@ public:
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*drgba++ = *drgb++ = (127-x)<<1;
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*drgba++ = *dga++ = x+y;
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}
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if (DX > 0 && LX != 0) {
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memset(dg, 0,1*DX); dg += 1*DX;
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memset(dga, 0,2*DX); dga += 2*DX;
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memset(drgb, 0,3*DX); drgb += 3*DX;
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memset(drgba,0,4*DX); drgba += 4*DX;
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}
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}
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i_rgba = new Fl_RGB_Image (img_rgba,128,128,4);
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i_ga = new Fl_RGB_Image (img_gray_a,128,128,2);
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if (LX<0) {
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img_gray += 127*(128+DX);
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img_gray_a += 127*(128+DX)*2;
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img_rgb += 127*(128+DX)*3;
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img_rgba += 127*(128+DX)*4;
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}
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i_g = new Fl_RGB_Image (img_gray ,128,128,1,LX*(128+DX));
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i_ga = new Fl_RGB_Image (img_gray_a,128,128,2,LX*(128+DX)*2);
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i_rgb = new Fl_RGB_Image (img_rgb, 128,128,3,LX*(128+DX)*3);
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i_rgba = new Fl_RGB_Image (img_rgba, 128,128,4,LX*(128+DX)*4);
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return new ImageTest(TESTAREA_X, TESTAREA_Y, TESTAREA_W, TESTAREA_H);
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}
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static uchar *img_gray;
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static uchar *img_gray_a;
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static uchar *img_rgb;
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static uchar *img_rgba;
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static Fl_RGB_Image *i_rgba;
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static Fl_RGB_Image *i_g;
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static Fl_RGB_Image *i_ga;
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static Fl_RGB_Image *i_rgb;
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static Fl_RGB_Image *i_rgba;
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ImageTest(int x, int y, int w, int h) : Fl_Box(x, y, w, h) {
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label("Testing Image Drawing\n\n"
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"This test renders four images, two of them with a checker board\n"
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@ -77,32 +109,54 @@ public:
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int xx = x()+10, yy = y()+10;
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fl_color(FL_BLACK); fl_rect(xx, yy, 130, 130);
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fl_draw_image(img_rgb, xx+1, yy+1, 128, 128, 3);
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#if IMG
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i_rgb->draw(xx+1,yy+1);
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#else
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fl_draw_image(img_rgb, xx+1, yy+1, 128, 128, 3, LX*((128+DX)*3));
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#endif
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fl_draw("RGB", xx+134, yy+64);
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// bottom left: RGBA
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xx = x()+10; yy = y()+10+134;
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fl_color(FL_BLACK); fl_rectf(xx, yy, 130, 130);
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fl_color(FL_WHITE); fl_rectf(xx+1, yy+1, 64, 64);
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fl_color(FL_WHITE); fl_rectf(xx+65, yy+65, 64, 64);
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i_rgba->draw(xx+1,yy+1); // only Fl_RGB_Image->draw() works with alpha
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fl_color(FL_BLACK); fl_rect(xx, yy, 130, 130); // black frame
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fl_color(FL_WHITE); fl_rectf(xx+1, yy+1, 128, 128); // white background
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#if CB // checker board
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fl_color(FL_BLACK); fl_rectf(xx+65, yy+1, 64, 64);
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fl_color(FL_BLACK); fl_rectf(xx+1, yy+65, 64, 64);
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#endif
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#if IMG
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i_rgba->draw(xx+1,yy+1);
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#else
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fl_draw_image(img_rgba, xx+1, yy+1, 128, 128, 4, LX*((128+DX)*4));
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#endif
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fl_color(FL_BLACK); fl_draw("RGBA", xx+134, yy+64);
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// top right: Gray
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xx = x()+10+200; yy = y()+10;
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fl_color(FL_BLACK); fl_rect(xx, yy, 130, 130);
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fl_draw_image(img_gray, xx+1, yy+1, 128, 128, 1);
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#if IMG
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i_g->draw(xx+1,yy+1);
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#else
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fl_draw_image(img_gray, xx+1, yy+1, 128, 128, 1, LX*((128+DX)*1));
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#endif
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fl_draw("Gray", xx+134, yy+64);
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// bottom right: Gray+Alpha
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xx = x()+10+200; yy = y()+10+134;
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fl_color(FL_BLACK); fl_rectf(xx, yy, 130, 130);
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fl_color(FL_WHITE); fl_rectf(xx+1, yy+1, 64, 64);
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fl_color(FL_WHITE); fl_rectf(xx+65, yy+65, 64, 64);
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i_ga->draw(xx+1,yy+1); // only Fl_RGB_Image->draw() works with alpha
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fl_color(FL_BLACK); fl_rect(xx, yy, 130, 130); // black frame
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fl_color(FL_WHITE); fl_rectf(xx+1, yy+1, 128, 128); // white background
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#if CB // checker board
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fl_color(FL_BLACK); fl_rectf(xx+65, yy+1, 64, 64);
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fl_color(FL_BLACK); fl_rectf(xx+1, yy+65, 64, 64);
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#endif
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#if IMG
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i_ga->draw(xx+1,yy+1);
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#else
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fl_draw_image(img_gray_a, xx+1, yy+1, 128, 128, 2, LX*((128+DX)*2));
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#endif
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fl_color(FL_BLACK); fl_draw("Gray+Alpha", xx+134, yy+64);
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}
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};
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@ -111,8 +165,10 @@ uchar *ImageTest::img_gray = 0;
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uchar *ImageTest::img_gray_a = 0;
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uchar *ImageTest::img_rgb = 0;
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uchar *ImageTest::img_rgba = 0;
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Fl_RGB_Image *ImageTest::i_rgba = 0;
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Fl_RGB_Image *ImageTest::i_g = 0;
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Fl_RGB_Image *ImageTest::i_ga = 0;
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Fl_RGB_Image *ImageTest::i_rgb = 0;
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Fl_RGB_Image *ImageTest::i_rgba = 0;
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UnitTest images("drawing images", ImageTest::create);
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