Added a very simple example of texture streaming
This commit is contained in:
Sam Lantinga
parent
8bee2482d7
commit
5540f2dba3
2 changed files with 262 additions and 23 deletions
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@ -49,6 +49,7 @@ TARGETS = \
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testsprite$(EXE) \
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testsprite2$(EXE) \
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testspriteminimal$(EXE) \
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teststreaming$(EXE) \
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testtimer$(EXE) \
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testver$(EXE) \
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testvidinfo$(EXE) \
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@ -81,12 +82,12 @@ testaudioinfo$(EXE): $(srcdir)/testaudioinfo.c
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testmultiaudio$(EXE): $(srcdir)/testmultiaudio.c
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$(CC) -o $@ $? $(CFLAGS) $(LIBS)
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testpower$(EXE): $(srcdir)/testpower.c
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$(CC) -o $@ $? $(CFLAGS) $(LIBS)
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testalpha$(EXE): $(srcdir)/testalpha.c
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$(CC) -o $@ $? $(CFLAGS) $(LIBS) @MATHLIB@
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testatomic$(EXE): $(srcdir)/testatomic.c
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$(CC) -o $@ $? $(CFLAGS) $(LIBS)
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testbitmap$(EXE): $(srcdir)/testbitmap.c
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$(CC) -o $@ $? $(CFLAGS) $(LIBS)
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@ -117,9 +118,9 @@ testfile$(EXE): $(srcdir)/testfile.c
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testfill$(EXE): $(srcdir)/testfill.c
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$(CC) -o $@ $? $(CFLAGS) $(LIBS)
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testgamma$(EXE): $(srcdir)/testgamma.c
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testgesture$(EXE): $(srcdir)/testgesture.c
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$(CC) -o $@ $? $(CFLAGS) $(LIBS) @MATHLIB@
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testgl$(EXE): $(srcdir)/testgl.c
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$(CC) -o $@ $? $(CFLAGS) $(LIBS) @GLLIB@ @MATHLIB@
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@ -129,18 +130,27 @@ testgl2$(EXE): $(srcdir)/testgl2.c $(srcdir)/common.c
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testgles$(EXE): $(srcdir)/testgles.c $(srcdir)/common.c
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$(CC) -o $@ $(srcdir)/testgles.c $(srcdir)/common.c $(CFLAGS) $(LIBS) @GLLIB@ @MATHLIB@
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testhaptic$(EXE): $(srcdir)/testhaptic.c
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$(CC) -o $@ $? $(CFLAGS) $(LIBS)
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testhread$(EXE): $(srcdir)/testhread.c
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$(CC) -o $@ $? $(CFLAGS) $(LIBS)
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testiconv$(EXE): $(srcdir)/testiconv.c
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$(CC) -o $@ $? $(CFLAGS) $(LIBS)
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testime$(EXE): $(srcdir)/testime.c
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$(CC) -o $@ $? $(CFLAGS) $(LIBS) @SDL_TTF_LIB@
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testjoystick$(EXE): $(srcdir)/testjoystick.c
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$(CC) -o $@ $? $(CFLAGS) $(LIBS)
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testkeys$(EXE): $(srcdir)/testkeys.c
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$(CC) -o $@ $? $(CFLAGS) $(LIBS)
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testloadso$(EXE): $(srcdir)/testloadso.c
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$(CC) -o $@ $? $(CFLAGS) $(LIBS)
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testlock$(EXE): $(srcdir)/testlock.c
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$(CC) -o $@ $? $(CFLAGS) $(LIBS)
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@ -153,6 +163,9 @@ testoverlay$(EXE): $(srcdir)/testoverlay.c
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testplatform$(EXE): $(srcdir)/testplatform.c
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$(CC) -o $@ $? $(CFLAGS) $(LIBS)
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testpower$(EXE): $(srcdir)/testpower.c
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$(CC) -o $@ $? $(CFLAGS) $(LIBS)
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testscale$(EXE): $(srcdir)/testscale.c $(srcdir)/common.c
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$(CC) -o $@ $(srcdir)/testscale.c $(srcdir)/common.c $(CFLAGS) $(LIBS)
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@ -165,15 +178,18 @@ testshader$(EXE): $(srcdir)/testshader.c
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testshape$(EXE): $(srcdir)/testshape.c
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$(CC) -o $@ $? -std=c99 $(CFLAGS) $(LIBS)
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testspriteminimal$(EXE): $(srcdir)/testspriteminimal.c
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$(CC) -o $@ $? $(CFLAGS) $(LIBS) @MATHLIB@
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testsprite$(EXE): $(srcdir)/testsprite.c
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$(CC) -o $@ $? $(CFLAGS) $(LIBS) @MATHLIB@
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testsprite2$(EXE): $(srcdir)/testsprite2.c $(srcdir)/common.c
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$(CC) -o $@ $(srcdir)/testsprite2.c $(srcdir)/common.c $(CFLAGS) $(LIBS) @MATHLIB@
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testspriteminimal$(EXE): $(srcdir)/testspriteminimal.c
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$(CC) -o $@ $? $(CFLAGS) $(LIBS) @MATHLIB@
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teststreaming$(EXE): $(srcdir)/teststreaming.c
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$(CC) -o $@ $? $(CFLAGS) $(LIBS) @MATHLIB@
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testtimer$(EXE): $(srcdir)/testtimer.c
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$(CC) -o $@ $? $(CFLAGS) $(LIBS)
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@ -198,21 +214,6 @@ threadwin$(EXE): $(srcdir)/threadwin.c
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torturethread$(EXE): $(srcdir)/torturethread.c
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$(CC) -o $@ $? $(CFLAGS) $(LIBS)
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testloadso$(EXE): $(srcdir)/testloadso.c
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$(CC) -o $@ $? $(CFLAGS) $(LIBS)
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testhaptic$(EXE): $(srcdir)/testhaptic.c
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$(CC) -o $@ $? $(CFLAGS) $(LIBS)
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testatomic$(EXE): $(srcdir)/testatomic.c
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$(CC) -o $@ $? $(CFLAGS) $(LIBS)
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testgesture$(EXE): $(srcdir)/testgesture.c
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$(CC) -o $@ $? $(CFLAGS) $(LIBS) @MATHLIB@
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testime$(EXE): $(srcdir)/testime.c
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$(CC) -o $@ $? $(CFLAGS) $(LIBS) @SDL_TTF_LIB@
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clean:
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rm -f $(TARGETS)
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238
test/teststreaming.c
Normal file
238
test/teststreaming.c
Normal file
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@ -0,0 +1,238 @@
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/********************************************************************************
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* *
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* Running moose :) Coded by Mike Gorchak. *
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* *
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********************************************************************************/
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include "SDL.h"
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#define MOOSEPIC_W 64
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#define MOOSEPIC_H 88
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#define MOOSEFRAME_SIZE (MOOSEPIC_W * MOOSEPIC_H)
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#define MOOSEFRAMES_COUNT 10
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SDL_Color MooseColors[84] = {
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{49, 49, 49}
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, {66, 24, 0}
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, {66, 33, 0}
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, {66, 66, 66}
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,
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{66, 115, 49}
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, {74, 33, 0}
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, {74, 41, 16}
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, {82, 33, 8}
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,
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{82, 41, 8}
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, {82, 49, 16}
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, {82, 82, 82}
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, {90, 41, 8}
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,
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{90, 41, 16}
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, {90, 57, 24}
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, {99, 49, 16}
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, {99, 66, 24}
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,
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{99, 66, 33}
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, {99, 74, 33}
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, {107, 57, 24}
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, {107, 82, 41}
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,
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{115, 57, 33}
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, {115, 66, 33}
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, {115, 66, 41}
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, {115, 74, 0}
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,
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{115, 90, 49}
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, {115, 115, 115}
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, {123, 82, 0}
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, {123, 99, 57}
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,
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{132, 66, 41}
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, {132, 74, 41}
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, {132, 90, 8}
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, {132, 99, 33}
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,
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{132, 99, 66}
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, {132, 107, 66}
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, {140, 74, 49}
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, {140, 99, 16}
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,
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{140, 107, 74}
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, {140, 115, 74}
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, {148, 107, 24}
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, {148, 115, 82}
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,
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{148, 123, 74}
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, {148, 123, 90}
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, {156, 115, 33}
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, {156, 115, 90}
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,
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{156, 123, 82}
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, {156, 132, 82}
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, {156, 132, 99}
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, {156, 156, 156}
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,
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{165, 123, 49}
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, {165, 123, 90}
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, {165, 132, 82}
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, {165, 132, 90}
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,
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{165, 132, 99}
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, {165, 140, 90}
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, {173, 132, 57}
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, {173, 132, 99}
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,
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{173, 140, 107}
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, {173, 140, 115}
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, {173, 148, 99}
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, {173, 173, 173}
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,
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{181, 140, 74}
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, {181, 148, 115}
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, {181, 148, 123}
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, {181, 156, 107}
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,
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{189, 148, 123}
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, {189, 156, 82}
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, {189, 156, 123}
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, {189, 156, 132}
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,
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{189, 189, 189}
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, {198, 156, 123}
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, {198, 165, 132}
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, {206, 165, 99}
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,
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{206, 165, 132}
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, {206, 173, 140}
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, {206, 206, 206}
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, {214, 173, 115}
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,
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{214, 173, 140}
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, {222, 181, 148}
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, {222, 189, 132}
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, {222, 189, 156}
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,
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{222, 222, 222}
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, {231, 198, 165}
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, {231, 231, 231}
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, {239, 206, 173}
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};
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Uint8 MooseFrames[MOOSEFRAMES_COUNT][MOOSEFRAME_SIZE];
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/* Call this instead of exit(), so we can clean up SDL: atexit() is evil. */
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static void
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quit(int rc)
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{
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SDL_Quit();
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exit(rc);
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}
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static void UpdateTexture(SDL_Texture *texture, int frame)
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{
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SDL_Color *color;
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Uint8 *src;
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Uint32 *dst;
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int row, col;
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void *pixels;
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int pitch;
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if (SDL_LockTexture(texture, NULL, &pixels, &pitch) < 0) {
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fprintf(stderr, "Couldn't lock texture: %s\n", SDL_GetError());
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quit(5);
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}
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src = MooseFrames[frame];
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for (row = 0; row < MOOSEPIC_H; ++row) {
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dst = (Uint32*)((Uint8*)pixels + row * pitch);
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for (col = 0; col < MOOSEPIC_W; ++col) {
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color = &MooseColors[*src++];
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*dst++ = (0xFF000000|(color->r<<16)|(color->g<<8)|color->b);
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}
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}
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SDL_UnlockTexture(texture);
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}
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int
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main(int argc, char **argv)
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{
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SDL_Window *window;
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SDL_Renderer *renderer;
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SDL_RWops *handle;
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SDL_Texture *MooseTexture;
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SDL_Event event;
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SDL_bool done = SDL_FALSE;
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int frame;
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if (SDL_Init(SDL_INIT_VIDEO) < 0) {
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fprintf(stderr, "Couldn't initialize SDL: %s\n", SDL_GetError());
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return 1;
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}
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/* load the moose images */
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handle = SDL_RWFromFile("moose.dat", "rb");
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if (handle == NULL) {
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fprintf(stderr, "Can't find the file moose.dat !\n");
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quit(2);
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}
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SDL_RWread(handle, MooseFrames, MOOSEFRAME_SIZE, MOOSEFRAMES_COUNT);
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SDL_RWclose(handle);
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/* Create the window and renderer */
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window = SDL_CreateWindow("Happy Moose",
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SDL_WINDOWPOS_UNDEFINED,
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SDL_WINDOWPOS_UNDEFINED,
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MOOSEPIC_W*4, MOOSEPIC_H*4,
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SDL_WINDOW_SHOWN|SDL_WINDOW_RESIZABLE);
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if (!window) {
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fprintf(stderr, "Couldn't set create window: %s\n", SDL_GetError());
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quit(3);
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}
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renderer = SDL_CreateRenderer(window, -1, 0);
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if (!renderer) {
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fprintf(stderr, "Couldn't set create renderer: %s\n", SDL_GetError());
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quit(4);
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}
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MooseTexture = SDL_CreateTexture(renderer, SDL_PIXELFORMAT_ARGB8888, SDL_TEXTUREACCESS_STREAMING, MOOSEPIC_W, MOOSEPIC_H);
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if (!MooseTexture) {
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fprintf(stderr, "Couldn't set create texture: %s\n", SDL_GetError());
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quit(5);
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}
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/* Loop, waiting for QUIT or the escape key */
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frame = 0;
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while (!done) {
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while (SDL_PollEvent(&event)) {
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switch (event.type) {
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case SDL_KEYDOWN:
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if (event.key.keysym.sym == SDLK_ESCAPE) {
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done = SDL_TRUE;
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}
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break;
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case SDL_QUIT:
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done = SDL_TRUE;
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break;
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}
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}
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frame = (frame + 1) % MOOSEFRAMES_COUNT;
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UpdateTexture(MooseTexture, frame);
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SDL_RenderClear(renderer);
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SDL_RenderCopy(renderer, MooseTexture, NULL, NULL);
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SDL_RenderPresent(renderer);
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}
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SDL_DestroyRenderer(renderer);
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quit(0);
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return 0;
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}
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/* vi: set ts=4 sw=4 expandtab: */
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