From e6bbdff562d65d2981a4e879185fcfe4f922982c Mon Sep 17 00:00:00 2001 From: Sam Lantinga Date: Fri, 11 Feb 2011 12:24:59 -0800 Subject: [PATCH] Added a very simple example of texture streaming --- test/Makefile.in | 47 ++++----- test/teststreaming.c | 238 +++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 262 insertions(+), 23 deletions(-) create mode 100644 test/teststreaming.c diff --git a/test/Makefile.in b/test/Makefile.in index e717bc2ea..3a82136bb 100644 --- a/test/Makefile.in +++ b/test/Makefile.in @@ -49,6 +49,7 @@ TARGETS = \ testsprite$(EXE) \ testsprite2$(EXE) \ testspriteminimal$(EXE) \ + teststreaming$(EXE) \ testtimer$(EXE) \ testver$(EXE) \ testvidinfo$(EXE) \ @@ -81,12 +82,12 @@ testaudioinfo$(EXE): $(srcdir)/testaudioinfo.c testmultiaudio$(EXE): $(srcdir)/testmultiaudio.c $(CC) -o $@ $? $(CFLAGS) $(LIBS) -testpower$(EXE): $(srcdir)/testpower.c - $(CC) -o $@ $? $(CFLAGS) $(LIBS) - testalpha$(EXE): $(srcdir)/testalpha.c $(CC) -o $@ $? $(CFLAGS) $(LIBS) @MATHLIB@ +testatomic$(EXE): $(srcdir)/testatomic.c + $(CC) -o $@ $? $(CFLAGS) $(LIBS) + testbitmap$(EXE): $(srcdir)/testbitmap.c $(CC) -o $@ $? $(CFLAGS) $(LIBS) @@ -117,9 +118,9 @@ testfile$(EXE): $(srcdir)/testfile.c testfill$(EXE): $(srcdir)/testfill.c $(CC) -o $@ $? $(CFLAGS) $(LIBS) -testgamma$(EXE): $(srcdir)/testgamma.c +testgesture$(EXE): $(srcdir)/testgesture.c $(CC) -o $@ $? $(CFLAGS) $(LIBS) @MATHLIB@ - + testgl$(EXE): $(srcdir)/testgl.c $(CC) -o $@ $? $(CFLAGS) $(LIBS) @GLLIB@ @MATHLIB@ @@ -129,18 +130,27 @@ testgl2$(EXE): $(srcdir)/testgl2.c $(srcdir)/common.c testgles$(EXE): $(srcdir)/testgles.c $(srcdir)/common.c $(CC) -o $@ $(srcdir)/testgles.c $(srcdir)/common.c $(CFLAGS) $(LIBS) @GLLIB@ @MATHLIB@ +testhaptic$(EXE): $(srcdir)/testhaptic.c + $(CC) -o $@ $? $(CFLAGS) $(LIBS) + testhread$(EXE): $(srcdir)/testhread.c $(CC) -o $@ $? $(CFLAGS) $(LIBS) testiconv$(EXE): $(srcdir)/testiconv.c $(CC) -o $@ $? $(CFLAGS) $(LIBS) +testime$(EXE): $(srcdir)/testime.c + $(CC) -o $@ $? $(CFLAGS) $(LIBS) @SDL_TTF_LIB@ + testjoystick$(EXE): $(srcdir)/testjoystick.c $(CC) -o $@ $? $(CFLAGS) $(LIBS) testkeys$(EXE): $(srcdir)/testkeys.c $(CC) -o $@ $? $(CFLAGS) $(LIBS) +testloadso$(EXE): $(srcdir)/testloadso.c + $(CC) -o $@ $? $(CFLAGS) $(LIBS) + testlock$(EXE): $(srcdir)/testlock.c $(CC) -o $@ $? $(CFLAGS) $(LIBS) @@ -153,6 +163,9 @@ testoverlay$(EXE): $(srcdir)/testoverlay.c testplatform$(EXE): $(srcdir)/testplatform.c $(CC) -o $@ $? $(CFLAGS) $(LIBS) +testpower$(EXE): $(srcdir)/testpower.c + $(CC) -o $@ $? $(CFLAGS) $(LIBS) + testscale$(EXE): $(srcdir)/testscale.c $(srcdir)/common.c $(CC) -o $@ $(srcdir)/testscale.c $(srcdir)/common.c $(CFLAGS) $(LIBS) @@ -165,15 +178,18 @@ testshader$(EXE): $(srcdir)/testshader.c testshape$(EXE): $(srcdir)/testshape.c $(CC) -o $@ $? -std=c99 $(CFLAGS) $(LIBS) -testspriteminimal$(EXE): $(srcdir)/testspriteminimal.c - $(CC) -o $@ $? $(CFLAGS) $(LIBS) @MATHLIB@ - testsprite$(EXE): $(srcdir)/testsprite.c $(CC) -o $@ $? $(CFLAGS) $(LIBS) @MATHLIB@ testsprite2$(EXE): $(srcdir)/testsprite2.c $(srcdir)/common.c $(CC) -o $@ $(srcdir)/testsprite2.c $(srcdir)/common.c $(CFLAGS) $(LIBS) @MATHLIB@ +testspriteminimal$(EXE): $(srcdir)/testspriteminimal.c + $(CC) -o $@ $? $(CFLAGS) $(LIBS) @MATHLIB@ + +teststreaming$(EXE): $(srcdir)/teststreaming.c + $(CC) -o $@ $? $(CFLAGS) $(LIBS) @MATHLIB@ + testtimer$(EXE): $(srcdir)/testtimer.c $(CC) -o $@ $? $(CFLAGS) $(LIBS) @@ -198,21 +214,6 @@ threadwin$(EXE): $(srcdir)/threadwin.c torturethread$(EXE): $(srcdir)/torturethread.c $(CC) -o $@ $? $(CFLAGS) $(LIBS) -testloadso$(EXE): $(srcdir)/testloadso.c - $(CC) -o $@ $? $(CFLAGS) $(LIBS) - -testhaptic$(EXE): $(srcdir)/testhaptic.c - $(CC) -o $@ $? $(CFLAGS) $(LIBS) - -testatomic$(EXE): $(srcdir)/testatomic.c - $(CC) -o $@ $? $(CFLAGS) $(LIBS) - -testgesture$(EXE): $(srcdir)/testgesture.c - $(CC) -o $@ $? $(CFLAGS) $(LIBS) @MATHLIB@ - -testime$(EXE): $(srcdir)/testime.c - $(CC) -o $@ $? $(CFLAGS) $(LIBS) @SDL_TTF_LIB@ - clean: rm -f $(TARGETS) diff --git a/test/teststreaming.c b/test/teststreaming.c new file mode 100644 index 000000000..abfb4efac --- /dev/null +++ b/test/teststreaming.c @@ -0,0 +1,238 @@ +/******************************************************************************** + * * + * Running moose :) Coded by Mike Gorchak. * + * * + ********************************************************************************/ + +#include +#include +#include + +#include "SDL.h" + +#define MOOSEPIC_W 64 +#define MOOSEPIC_H 88 + +#define MOOSEFRAME_SIZE (MOOSEPIC_W * MOOSEPIC_H) +#define MOOSEFRAMES_COUNT 10 + +SDL_Color MooseColors[84] = { + {49, 49, 49} + , {66, 24, 0} + , {66, 33, 0} + , {66, 66, 66} + , + {66, 115, 49} + , {74, 33, 0} + , {74, 41, 16} + , {82, 33, 8} + , + {82, 41, 8} + , {82, 49, 16} + , {82, 82, 82} + , {90, 41, 8} + , + {90, 41, 16} + , {90, 57, 24} + , {99, 49, 16} + , {99, 66, 24} + , + {99, 66, 33} + , {99, 74, 33} + , {107, 57, 24} + , {107, 82, 41} + , + {115, 57, 33} + , {115, 66, 33} + , {115, 66, 41} + , {115, 74, 0} + , + {115, 90, 49} + , {115, 115, 115} + , {123, 82, 0} + , {123, 99, 57} + , + {132, 66, 41} + , {132, 74, 41} + , {132, 90, 8} + , {132, 99, 33} + , + {132, 99, 66} + , {132, 107, 66} + , {140, 74, 49} + , {140, 99, 16} + , + {140, 107, 74} + , {140, 115, 74} + , {148, 107, 24} + , {148, 115, 82} + , + {148, 123, 74} + , {148, 123, 90} + , {156, 115, 33} + , {156, 115, 90} + , + {156, 123, 82} + , {156, 132, 82} + , {156, 132, 99} + , {156, 156, 156} + , + {165, 123, 49} + , {165, 123, 90} + , {165, 132, 82} + , {165, 132, 90} + , + {165, 132, 99} + , {165, 140, 90} + , {173, 132, 57} + , {173, 132, 99} + , + {173, 140, 107} + , {173, 140, 115} + , {173, 148, 99} + , {173, 173, 173} + , + {181, 140, 74} + , {181, 148, 115} + , {181, 148, 123} + , {181, 156, 107} + , + {189, 148, 123} + , {189, 156, 82} + , {189, 156, 123} + , {189, 156, 132} + , + {189, 189, 189} + , {198, 156, 123} + , {198, 165, 132} + , {206, 165, 99} + , + {206, 165, 132} + , {206, 173, 140} + , {206, 206, 206} + , {214, 173, 115} + , + {214, 173, 140} + , {222, 181, 148} + , {222, 189, 132} + , {222, 189, 156} + , + {222, 222, 222} + , {231, 198, 165} + , {231, 231, 231} + , {239, 206, 173} +}; + +Uint8 MooseFrames[MOOSEFRAMES_COUNT][MOOSEFRAME_SIZE]; + +/* Call this instead of exit(), so we can clean up SDL: atexit() is evil. */ +static void +quit(int rc) +{ + SDL_Quit(); + exit(rc); +} + +static void UpdateTexture(SDL_Texture *texture, int frame) +{ + SDL_Color *color; + Uint8 *src; + Uint32 *dst; + int row, col; + void *pixels; + int pitch; + + if (SDL_LockTexture(texture, NULL, &pixels, &pitch) < 0) { + fprintf(stderr, "Couldn't lock texture: %s\n", SDL_GetError()); + quit(5); + } + src = MooseFrames[frame]; + for (row = 0; row < MOOSEPIC_H; ++row) { + dst = (Uint32*)((Uint8*)pixels + row * pitch); + for (col = 0; col < MOOSEPIC_W; ++col) { + color = &MooseColors[*src++]; + *dst++ = (0xFF000000|(color->r<<16)|(color->g<<8)|color->b); + } + } + SDL_UnlockTexture(texture); +} + +int +main(int argc, char **argv) +{ + SDL_Window *window; + SDL_Renderer *renderer; + SDL_RWops *handle; + SDL_Texture *MooseTexture; + SDL_Event event; + SDL_bool done = SDL_FALSE; + int frame; + + if (SDL_Init(SDL_INIT_VIDEO) < 0) { + fprintf(stderr, "Couldn't initialize SDL: %s\n", SDL_GetError()); + return 1; + } + + /* load the moose images */ + handle = SDL_RWFromFile("moose.dat", "rb"); + if (handle == NULL) { + fprintf(stderr, "Can't find the file moose.dat !\n"); + quit(2); + } + SDL_RWread(handle, MooseFrames, MOOSEFRAME_SIZE, MOOSEFRAMES_COUNT); + SDL_RWclose(handle); + + + /* Create the window and renderer */ + window = SDL_CreateWindow("Happy Moose", + SDL_WINDOWPOS_UNDEFINED, + SDL_WINDOWPOS_UNDEFINED, + MOOSEPIC_W*4, MOOSEPIC_H*4, + SDL_WINDOW_SHOWN|SDL_WINDOW_RESIZABLE); + if (!window) { + fprintf(stderr, "Couldn't set create window: %s\n", SDL_GetError()); + quit(3); + } + + renderer = SDL_CreateRenderer(window, -1, 0); + if (!renderer) { + fprintf(stderr, "Couldn't set create renderer: %s\n", SDL_GetError()); + quit(4); + } + + MooseTexture = SDL_CreateTexture(renderer, SDL_PIXELFORMAT_ARGB8888, SDL_TEXTUREACCESS_STREAMING, MOOSEPIC_W, MOOSEPIC_H); + if (!MooseTexture) { + fprintf(stderr, "Couldn't set create texture: %s\n", SDL_GetError()); + quit(5); + } + + /* Loop, waiting for QUIT or the escape key */ + frame = 0; + while (!done) { + while (SDL_PollEvent(&event)) { + switch (event.type) { + case SDL_KEYDOWN: + if (event.key.keysym.sym == SDLK_ESCAPE) { + done = SDL_TRUE; + } + break; + case SDL_QUIT: + done = SDL_TRUE; + break; + } + } + + frame = (frame + 1) % MOOSEFRAMES_COUNT; + UpdateTexture(MooseTexture, frame); + + SDL_RenderClear(renderer); + SDL_RenderCopy(renderer, MooseTexture, NULL, NULL); + SDL_RenderPresent(renderer); + } + SDL_DestroyRenderer(renderer); + + quit(0); + return 0; +} + +/* vi: set ts=4 sw=4 expandtab: */