Moved the SDL_Eyes test program for shaped windows into the Hg repository and got it building and linking as a test.
This commit is contained in:
Eli Gottlieb
parent
608b696abd
commit
caf743a102
7 changed files with 256 additions and 2 deletions
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@ -7,7 +7,7 @@ EXE = @EXE@
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CFLAGS = @CFLAGS@
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LIBS = @LIBS@
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TARGETS = checkkeys$(EXE) graywin$(EXE) loopwave$(EXE) testalpha$(EXE) testatomic$(EXE) testaudioinfo$(EXE) testbitmap$(EXE) testblitspeed$(EXE) testcursor$(EXE) testdraw2$(EXE) testdyngles$(EXE) testdyngl$(EXE) testerror$(EXE) testfile$(EXE) testfill$(EXE) testgamma$(EXE) testgl2$(EXE) testgles$(EXE) testgl$(EXE) testhaptic$(EXE) testhread$(EXE) testiconv$(EXE) testime$(EXE) testintersections$(EXE) testjoystick$(EXE) testkeys$(EXE) testloadso$(EXE) testlock$(EXE) testmmousetablet$(EXE) testmultiaudio$(EXE) testoverlay2$(EXE) testoverlay$(EXE) testpalette$(EXE) testplatform$(EXE) testpower$(EXE) testresample$(EXE) testsem$(EXE) testsprite2$(EXE) testsprite$(EXE) testspriteminimal$(EXE) testtimer$(EXE) testver$(EXE) testvidinfo$(EXE) testwin$(EXE) testwm2$(EXE) testwm$(EXE) threadwin$(EXE) torturethread$(EXE)
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TARGETS = checkkeys$(EXE) graywin$(EXE) loopwave$(EXE) testalpha$(EXE) testatomic$(EXE) testaudioinfo$(EXE) testbitmap$(EXE) testblitspeed$(EXE) testcursor$(EXE) testdraw2$(EXE) testdyngles$(EXE) testdyngl$(EXE) testerror$(EXE) testeyes$(EXE) testfile$(EXE) testfill$(EXE) testgamma$(EXE) testgl2$(EXE) testgles$(EXE) testgl$(EXE) testhaptic$(EXE) testhread$(EXE) testiconv$(EXE) testime$(EXE) testintersections$(EXE) testjoystick$(EXE) testkeys$(EXE) testloadso$(EXE) testlock$(EXE) testmmousetablet$(EXE) testmultiaudio$(EXE) testoverlay2$(EXE) testoverlay$(EXE) testpalette$(EXE) testplatform$(EXE) testpower$(EXE) testresample$(EXE) testsem$(EXE) testsprite2$(EXE) testsprite$(EXE) testspriteminimal$(EXE) testtimer$(EXE) testver$(EXE) testvidinfo$(EXE) testwin$(EXE) testwm2$(EXE) testwm$(EXE) threadwin$(EXE) torturethread$(EXE)
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all: Makefile $(TARGETS)
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@ -62,6 +62,9 @@ testdyngles$(EXE): $(srcdir)/testdyngles.c
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testerror$(EXE): $(srcdir)/testerror.c
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$(CC) -o $@ $? $(CFLAGS) $(LIBS)
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testeyes$(EXE): $(srcdir)/testeyes.c
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$(CC) -o $@ $? -std=c99 $(CFLAGS) $(LIBS)
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testfile$(EXE): $(srcdir)/testfile.c
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$(CC) -o $@ $? $(CFLAGS) $(LIBS)
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@ -12,6 +12,7 @@ These are test programs for the SDL library:
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testcursor Tests custom mouse cursor
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testdyngl Tests dynamically loading OpenGL library
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testerror Tests multi-threaded error handling
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testeyes Tests shaped windows
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testfile Tests RWops layer
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testgamma Tests video device gamma ramp
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testgl A very simple example of using OpenGL with SDL
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BIN
test/testeyes
Executable file
BIN
test/testeyes
Executable file
Binary file not shown.
208
test/testeyes.c
Normal file
208
test/testeyes.c
Normal file
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@ -0,0 +1,208 @@
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#include <stdlib.h>
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#include <math.h>
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#include <SDL_events.h>
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#include <SDL_rect.h>
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#include <SDL_pixels.h>
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#include <SDL_video.h>
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#include <SDL_shape.h>
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#include "testeyes_bitmap.h"
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#include "testeyes_mask_bitmap.h"
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/* The following code for the calculation of pupil positions has been taken and rewritten from the original xeyes. The
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copyright notice is included as follows, and the code is now under the same license as the rest of this file. */
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/*
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Copyright (c) 1991 X Consortium
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Permission is hereby granted, free of charge, to any person obtaining
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a copy of this software and associated documentation files (the
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"Software"), to deal in the Software without restriction, including
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without limitation the rights to use, copy, modify, merge, publish,
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distribute, sublicense, and/or sell copies of the Software, and to
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permit persons to whom the Software is furnished to do so, subject to
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the following conditions:
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The above copyright notice and this permission notice shall be included
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in all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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IN NO EVENT SHALL THE X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR
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OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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OTHER DEALINGS IN THE SOFTWARE.
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Except as contained in this notice, the name of the X Consortium shall
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not be used in advertising or otherwise to promote the sale, use or
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other dealings in this Software without prior written authorization
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from the X Consortium.
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*/
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# define NUM_EYES 2
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# define EYE_X(n) ((n) * 2.0)
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# define EYE_Y(n) (0.0)
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# define EYE_THICK (0.175) /* thickness of eye rim */
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# define EYE_OFFSET (0.1) /* padding between eyes */
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# define EYE_WIDTH (2.0 - (EYE_THICK + EYE_OFFSET) * 2)
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# define EYE_HEIGHT EYE_WIDTH
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# define EYE_HWIDTH (EYE_WIDTH / 2.0)
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# define EYE_HHEIGHT (EYE_HEIGHT / 2.0)
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# define BALL_WIDTH (0.3)
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# define BALL_HEIGHT BALL_WIDTH
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# define BALL_PAD (0.05)
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# define BALL_DIST ((EYE_WIDTH - BALL_WIDTH) / 2.0 - BALL_PAD)
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SDL_Point computePupil (int num,SDL_Point mouse) {
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double dx = mouse.x - EYE_X(num);
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double dy = mouse.y - EYE_Y(num);
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double cx = 0.0,cy = 0.0;
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if(dx == 0 && dy == 0) {
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cx = EYE_X(num);
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cy = EYE_Y(num);
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}
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else {
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double angle = atan2((double)dy,(double)dx);
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double cosa = cos(angle);
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double sina = sin(angle);
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double hypotenuse = hypot(EYE_HHEIGHT * cosa, EYE_HWIDTH * sina);
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double dist = BALL_DIST * hypot((EYE_HWIDTH * EYE_HHEIGHT) * cosa / hypotenuse,
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(EYE_HWIDTH * EYE_HHEIGHT) * sina / hypotenuse);
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if(dist > hypot((double)dx,(double)dy)) {
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cx = dx + EYE_X(num);
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cy = dy + EYE_Y(num);
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}
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else {
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cx = dist * cosa + EYE_X(num);
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cy = dist * sina + EYE_Y(num);
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}
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}
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SDL_Point ret = {cx,cy};
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return ret;
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}
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/* Here begins the code exclusively and entirely written by Eli Gottlieb in May 2010. */
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typedef struct {
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SDL_Rect left;
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SDL_Rect right;
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} Pupil_Pair;
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typedef struct {
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SDL_Point left;
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SDL_Point right;
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} Pupil_Points;
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Pupil_Pair compute_pupil_positions(SDL_Point target) {
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Pupil_Pair result;
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Pupil_Points points;
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points.left = computePupil(0,target);
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points.right = computePupil(1,target);
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result.left.x = points.left.x - BALL_WIDTH / 2.0;
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result.left.y = points.left.y - BALL_HEIGHT / 2.0;
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result.right.x = points.right.x - BALL_WIDTH / 2.0;
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result.right.y = points.right.y - BALL_HEIGHT / 2.0;
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result.left.w = result.right.w = BALL_WIDTH;
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result.left.h = result.left.w = BALL_HEIGHT;
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return result;
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}
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void render_eyes(SDL_Window *window,SDL_Texture *eyes_texture,Pupil_Pair pupils) {
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SDL_SelectRenderer(window);
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//Clear render-target to blue.
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SDL_SetRenderDrawColor(0x00,0x00,0xff,0xff);
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SDL_RenderClear();
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//Render the whites of the eyes.
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SDL_Rect srcdestrect = {0,0,eyes_width,eyes_height};
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SDL_RenderCopy(eyes_texture,&srcdestrect,&srcdestrect);
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//Render the pupils.
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SDL_SetRenderDrawColor(0x00,0x00,0x00,0xff);
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const SDL_Rect eyes[2] = {pupils.left,pupils.right};
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SDL_RenderFillRects((const SDL_Rect**)&eyes,2);
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SDL_RenderPresent();
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}
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int main(int argc,char** argv) {
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if(SDL_VideoInit(NULL,0) == -1) {
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printf("Could not initialize SDL video.\n");
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exit(-1);
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}
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SDL_Window *window = SDL_CreateShapedWindow("Big Brother is watching you.",eyes_x_hot,eyes_y_hot,eyes_width,eyes_height,SDL_WINDOW_RESIZABLE);
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if(window == NULL) {
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SDL_VideoQuit();
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printf("Could not create shaped window for eyes.\n");
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exit(-2);
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}
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if(SDL_CreateRenderer(window,-1,SDL_RENDERER_PRESENTFLIP2) == -1) {
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SDL_DestroyWindow(window);
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SDL_VideoQuit();
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printf("Could not create rendering context for SDL_Eyes window.\n");
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exit(-3);
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}
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SDL_Color bnw_palette[2] = {{0,0,0,0},{255,255,255,255}};
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SDL_Texture *eyes_texture = SDL_CreateTexture(SDL_PIXELFORMAT_INDEX1LSB,SDL_TEXTUREACCESS_STREAMING,eyes_width,eyes_height);
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if(eyes_texture == NULL) {
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SDL_DestroyRenderer(window);
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SDL_DestroyWindow(window);
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SDL_VideoQuit();
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printf("Could not create eyes texture.\n");
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exit(-4);
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}
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SDL_SetTexturePalette(eyes_texture,bnw_palette,0,2);
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void *pixels = NULL;
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int pitch = 0;
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SDL_Rect rect = {0,0,eyes_width,eyes_height};
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SDL_LockTexture(eyes_texture,&rect,1,&pixels,&pitch);
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for(int row = 0;row<eyes_height;row++)
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memcpy(pixels+pitch*row,eyes_bits+(eyes_width/8)*row,eyes_width/8);
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SDL_UnlockTexture(eyes_texture);
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SDL_Texture *mask_texture = SDL_CreateTexture(SDL_PIXELFORMAT_INDEX1LSB,SDL_TEXTUREACCESS_STREAMING,eyesmask_width,eyesmask_height);
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if(mask_texture == NULL) {
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SDL_DestroyTexture(eyes_texture);
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SDL_DestroyRenderer(window);
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SDL_DestroyWindow(window);
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SDL_VideoQuit();
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printf("Could not create shape mask texture.\n");
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exit(-5);
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}
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SDL_SetTexturePalette(mask_texture,bnw_palette,0,2);
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rect.x = rect.y = 0;
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rect.w = eyesmask_width;
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rect.h = eyesmask_height;
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SDL_LockTexture(mask_texture,&rect,1,&pixels,&pitch);
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for(int row = 0;row<eyesmask_height;row++)
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memcpy(pixels+pitch*row,eyesmask_bits+(eyesmask_width/8)*row,eyesmask_width/8);
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SDL_UnlockTexture(mask_texture);
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SDL_SelectShapeRenderer(window);
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SDL_RenderCopy(mask_texture,&rect,&rect);
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SDL_RenderPresent();
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SDL_Event event;
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int event_pending = 0;
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event_pending = SDL_PollEvent(&event);
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SDL_Point mouse_position;
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Pupil_Pair pupil_positions;
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SDL_SelectMouse(0);
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SDL_GetMouseState(&mouse_position.x,&mouse_position.y);
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pupil_positions = compute_pupil_positions(mouse_position);
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while(event.type != SDL_QUIT) {
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if(event.type == SDL_MOUSEMOTION) {
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mouse_position.x = event.motion.x;
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mouse_position.y = event.motion.y;
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pupil_positions = compute_pupil_positions(mouse_position);
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}
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render_eyes(window,eyes_texture,pupil_positions);
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event_pending = SDL_PollEvent(&event);
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}
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//Call SDL_VideoQuit() before quitting.
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SDL_VideoQuit();
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}
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21
test/testeyes_bitmap.h
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21
test/testeyes_bitmap.h
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@ -0,0 +1,21 @@
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#define eyes_width 48
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#define eyes_height 32
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#define eyes_x_hot 0
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#define eyes_y_hot 0
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static unsigned char eyes_bits[] = {
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x78, 0x00, 0x00, 0x1e, 0x00, 0x00, 0xfe, 0x01, 0x80, 0x7f, 0x00,
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0x00, 0x87, 0x03, 0xc0, 0xe1, 0x00, 0x80, 0x01, 0x06, 0x60, 0x80, 0x01,
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0xc0, 0x00, 0x0c, 0x30, 0x00, 0x03, 0x60, 0x00, 0x18, 0x18, 0x00, 0x06,
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0x30, 0x00, 0x30, 0x0c, 0x00, 0x0c, 0x30, 0x00, 0x30, 0x0c, 0x00, 0x0c,
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0x10, 0x00, 0x20, 0x04, 0x00, 0x08, 0x18, 0x00, 0x60, 0x06, 0x00, 0x18,
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0x18, 0x00, 0x60, 0x06, 0x00, 0x18, 0x18, 0x00, 0x60, 0x06, 0x00, 0x18,
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0x18, 0x00, 0x60, 0x06, 0x00, 0x18, 0x18, 0x00, 0x60, 0x06, 0x00, 0x18,
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0x18, 0x00, 0x60, 0x06, 0x00, 0x18, 0x18, 0x80, 0x63, 0x06, 0x00, 0x18,
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0x18, 0x80, 0x63, 0x06, 0xe0, 0x18, 0x18, 0x80, 0x63, 0x06, 0xe0, 0x18,
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0x18, 0x00, 0x60, 0x06, 0xe0, 0x18, 0x18, 0x00, 0x20, 0x06, 0x00, 0x08,
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0x10, 0x00, 0x30, 0x04, 0x00, 0x0c, 0x10, 0x00, 0x10, 0x04, 0x00, 0x04,
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0x30, 0x00, 0x18, 0x0c, 0x00, 0x06, 0x60, 0x00, 0x08, 0x18, 0x00, 0x02,
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0x40, 0x00, 0x0c, 0x10, 0x00, 0x03, 0xc0, 0x00, 0x06, 0x30, 0x80, 0x01,
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0x80, 0x83, 0x03, 0xe0, 0xe0, 0x00, 0x00, 0xff, 0x01, 0xc0, 0x7f, 0x00,
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0x00, 0xfe, 0x00, 0x00, 0x3f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
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21
test/testeyes_mask_bitmap.h
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21
test/testeyes_mask_bitmap.h
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@ -0,0 +1,21 @@
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#define eyesmask_width 48
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#define eyesmask_height 32
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#define eyesmask_x_hot 0
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#define eyesmask_y_hot 0
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static unsigned char eyesmask_bits[] = {
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x78, 0x00, 0x00, 0x1e, 0x00, 0x00, 0xfe, 0x01, 0x80, 0x7f, 0x00,
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0x00, 0xff, 0x03, 0xc0, 0xff, 0x00, 0x80, 0xff, 0x07, 0xe0, 0xff, 0x01,
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0xc0, 0xff, 0x0f, 0xf0, 0xff, 0x03, 0xe0, 0xff, 0x1f, 0xf8, 0xff, 0x07,
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0xf0, 0xff, 0x3f, 0xfc, 0xff, 0x0f, 0xf0, 0xff, 0x3f, 0xfc, 0xff, 0x0f,
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0xf0, 0xff, 0x3f, 0xfc, 0xff, 0x0f, 0xf8, 0xff, 0x7f, 0xfe, 0xff, 0x1f,
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0xf8, 0xff, 0x7f, 0xfe, 0xff, 0x1f, 0xf8, 0xff, 0x7f, 0xfe, 0xff, 0x1f,
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0xf8, 0xff, 0x7f, 0xfe, 0xff, 0x1f, 0xf8, 0xff, 0x7f, 0xfe, 0xff, 0x1f,
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0xf8, 0xff, 0x7f, 0xfe, 0xff, 0x1f, 0xf8, 0xff, 0x7f, 0xfe, 0xff, 0x1f,
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0xf8, 0xff, 0x7f, 0xfe, 0xff, 0x1f, 0xf8, 0xff, 0x7f, 0xfe, 0xff, 0x1f,
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0xf8, 0xff, 0x7f, 0xfe, 0xff, 0x1f, 0xf8, 0xff, 0x3f, 0xfe, 0xff, 0x0f,
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0xf0, 0xff, 0x3f, 0xfc, 0xff, 0x0f, 0xf0, 0xff, 0x1f, 0xfc, 0xff, 0x07,
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0xf0, 0xff, 0x1f, 0xfc, 0xff, 0x07, 0xe0, 0xff, 0x0f, 0xf8, 0xff, 0x03,
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0xc0, 0xff, 0x0f, 0xf0, 0xff, 0x03, 0xc0, 0xff, 0x07, 0xf0, 0xff, 0x01,
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0x80, 0xff, 0x03, 0xe0, 0xff, 0x00, 0x00, 0xff, 0x01, 0xc0, 0x7f, 0x00,
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0x00, 0xfe, 0x00, 0x00, 0x3f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
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