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Added a very simple example of texture streaming

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slouken committed Feb 11, 2011
1 parent b7fbc8c commit e6bbdff562d65d2981a4e879185fcfe4f922982c
Showing with 262 additions and 23 deletions.
  1. +24 −23 test/Makefile.in
  2. +238 −0 test/teststreaming.c
@@ -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)

@@ -0,0 +1,238 @@
/********************************************************************************
* *
* Running moose :) Coded by Mike Gorchak. *
* *
********************************************************************************/

#include <stdlib.h>
#include <stdio.h>
#include <string.h>

#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: */

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