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-rw-r--r--hacks/glx/flurry.c549
1 files changed, 0 insertions, 549 deletions
diff --git a/hacks/glx/flurry.c b/hacks/glx/flurry.c
deleted file mode 100644
index a236f52..0000000
--- a/hacks/glx/flurry.c
+++ /dev/null
@@ -1,549 +0,0 @@
-/* -*- Mode: C; tab-width: 4 c-basic-offset: 4 indent-tabs-mode: t -*- */
-/*
- * vim: ts=8 sw=4 noet
- */
-
-/*
-
-Copyright (c) 2002, Calum Robinson
-All rights reserved.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions are met:
-
-* Redistributions of source code must retain the above copyright notice, this
- list of conditions and the following disclaimer.
-
-* Redistributions in binary form must reproduce the above copyright notice,
- this list of conditions and the following disclaimer in the documentation
- and/or other materials provided with the distribution.
-
-* Neither the name of the author nor the names of its contributors may be used
- to endorse or promote products derived from this software without specific
- prior written permission.
-
-THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
-ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
-ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
-(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
-LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-*/
-
-/* flurry */
-
-#if 0
-static const char sccsid[] = "@(#)flurry.c 4.07 97/11/24 xlockmore";
-#endif
-
-#define DEF_PRESET "random"
-#define DEF_BRIGHTNESS "8"
-
-# define DEFAULTS "*delay: 10000 \n" \
- "*showFPS: False \n"
-
-# define release_flurry 0
-# define flurry_handle_event xlockmore_no_events
-# include "xlockmore.h" /* from the xscreensaver distribution */
-
-#ifdef USE_GL
-
-static char *preset_str;
-
-static XrmOptionDescRec opts[] = {
- { "-preset", ".preset", XrmoptionSepArg, 0 }
-};
-
-static argtype vars[] = {
- {&preset_str, "preset", "Preset", DEF_PRESET, t_String},
-};
-
-#define countof(x) (sizeof((x))/sizeof((*x)))
-
-ENTRYPOINT ModeSpecOpt flurry_opts = {countof(opts), opts, countof(vars), vars, NULL};
-
-#ifdef USE_MODULES
-ModStruct flurry_description = {
- "flurry",
- "init_flurry",
- "draw_flurry",
- NULL,
- "draw_flurry",
- "init_flurry",
- "free_flurry",
- &flurry_opts,
- 1000, 1, 2, 1, 4, 1.0,
- "",
- "Flurry",
- 0,
- NULL
-};
-
-#endif
-
-#include "flurry.h"
-
-global_info_t *flurry_info = NULL;
-
-
-static
-double currentTime(void) {
- struct timeval tv;
-# ifdef GETTIMEOFDAY_TWO_ARGS
- struct timezone tzp;
- gettimeofday(&tv, &tzp);
-# else
- gettimeofday(&tv);
-# endif
-
- return (double)tv.tv_sec + (double)tv.tv_usec / 1000000.0;
-}
-
-double TimeInSecondsSinceStart (const global_info_t *global) {
- return currentTime() - global->gTimeCounter;
-}
-
-#if 0
-#ifdef __ppc__
-static int IsAltiVecAvailable(void)
-{
- return 0;
-}
-#endif
-#endif
-
-
-static
-void delete_flurry_info(flurry_info_t *flurry)
-{
- int i;
-
- free(flurry->s);
- free(flurry->star);
- for (i=0;i<MAX_SPARKS;i++)
- {
- free(flurry->spark[i]);
- }
- /* free(flurry); */
-}
-
-static
-flurry_info_t *new_flurry_info(global_info_t *global, int streams, ColorModes colour, float thickness, float speed, double bf)
-{
- int i,k;
- flurry_info_t *flurry = (flurry_info_t *)malloc(sizeof(flurry_info_t));
-
- if (!flurry) return NULL;
-
- flurry->flurryRandomSeed = RandFlt(0.0, 300.0);
-
- flurry->fOldTime = 0;
- flurry->dframe = 0;
- flurry->fTime = TimeInSecondsSinceStart(global) + flurry->flurryRandomSeed;
- flurry->fDeltaTime = flurry->fTime - flurry->fOldTime;
-
- flurry->numStreams = streams;
- flurry->streamExpansion = thickness;
- flurry->currentColorMode = colour;
- flurry->briteFactor = bf;
-
- flurry->s = malloc(sizeof(SmokeV));
- InitSmoke(flurry->s);
-
- flurry->star = malloc(sizeof(Star));
- InitStar(flurry->star);
- flurry->star->rotSpeed = speed;
-
- for (i = 0;i < MAX_SPARKS; i++)
- {
- flurry->spark[i] = malloc(sizeof(Spark));
- InitSpark(flurry->spark[i]);
- flurry->spark[i]->mystery = 1800 * (i + 1) / 13; /* 100 * (i + 1) / (flurry->numStreams + 1); */
- UpdateSpark(global, flurry, flurry->spark[i]);
- }
-
- for (i=0;i<NUMSMOKEPARTICLES/4;i++) {
- for(k=0;k<4;k++) {
- flurry->s->p[i].dead.i[k] = 1;
- }
- }
-
- flurry->next = NULL;
-
- return flurry;
-}
-
-static
-void GLSetupRC(global_info_t *global)
-{
- /* setup the defaults for OpenGL */
- glDisable(GL_DEPTH_TEST);
- glAlphaFunc(GL_GREATER,0.0f);
- glEnable(GL_ALPHA_TEST);
- glShadeModel(GL_FLAT);
- glDisable(GL_LIGHTING);
- glDisable(GL_CULL_FACE);
- glEnable(GL_BLEND);
-
- glViewport(0,0,(int) global->sys_glWidth,(int) global->sys_glHeight);
- glMatrixMode(GL_PROJECTION);
- glLoadIdentity();
- glOrtho(0,global->sys_glWidth,0,global->sys_glHeight,-1,1);
- glMatrixMode(GL_MODELVIEW);
- glLoadIdentity();
-
- glClear(GL_COLOR_BUFFER_BIT);
-
- glEnableClientState(GL_COLOR_ARRAY);
- glEnableClientState(GL_VERTEX_ARRAY);
- glEnableClientState(GL_TEXTURE_COORD_ARRAY);
-
-#if 0
-#ifdef __ppc__
- global->optMode = OPT_MODE_SCALAR_FRSQRTE;
-
-#ifdef __VEC__
- if (IsAltiVecAvailable()) global->optMode = OPT_MODE_VECTOR_UNROLLED;
-#endif
-
-#else
- global->optMode = OPT_MODE_SCALAR_BASE;
-#endif
-#endif /* 0 */
-}
-
-static
-void GLRenderScene(global_info_t *global, flurry_info_t *flurry, double b)
-{
- int i;
-
- flurry->dframe++;
-
- flurry->fOldTime = flurry->fTime;
- flurry->fTime = TimeInSecondsSinceStart(global) + flurry->flurryRandomSeed;
- flurry->fDeltaTime = flurry->fTime - flurry->fOldTime;
-
- flurry->drag = (float) pow(0.9965,flurry->fDeltaTime*85.0);
-
- UpdateStar(global, flurry, flurry->star);
-
-#ifdef DRAW_SPARKS
- glShadeModel(GL_SMOOTH);
- glEnable(GL_BLEND);
- glBlendFunc(GL_SRC_ALPHA,GL_ONE);
-#endif
-
- for (i=0;i<flurry->numStreams;i++) {
- flurry->spark[i]->color[0]=1.0;
- flurry->spark[i]->color[1]=1.0;
- flurry->spark[i]->color[2]=1.0;
- flurry->spark[i]->color[2]=1.0;
- UpdateSpark(global, flurry, flurry->spark[i]);
-#ifdef DRAW_SPARKS
- DrawSpark(global, flurry, flurry->spark[i]);
-#endif
- }
-
- switch(global->optMode) {
- case OPT_MODE_SCALAR_BASE:
- UpdateSmoke_ScalarBase(global, flurry, flurry->s);
- break;
-#if 0
-#ifdef __ppc__
- case OPT_MODE_SCALAR_FRSQRTE:
- UpdateSmoke_ScalarFrsqrte(global, flurry, flurry->s);
- break;
-#endif
-#ifdef __VEC__
- case OPT_MODE_VECTOR_SIMPLE:
- UpdateSmoke_VectorBase(global, flurry, flurry->s);
- break;
- case OPT_MODE_VECTOR_UNROLLED:
- UpdateSmoke_VectorUnrolled(global, flurry, flurry->s);
- break;
-#endif
-#endif /* 0 */
-
- default:
- break;
- }
-
- /* glDisable(GL_BLEND); */
- glEnable(GL_BLEND);
- glBlendFunc(GL_SRC_ALPHA,GL_ONE);
- glEnable(GL_TEXTURE_2D);
-
- switch(global->optMode) {
- case OPT_MODE_SCALAR_BASE:
-#if 0
-#ifdef __ppc__
- case OPT_MODE_SCALAR_FRSQRTE:
-#endif
-#endif /* 0 */
- DrawSmoke_Scalar(global, flurry, flurry->s, b);
- break;
-#if 0
-#ifdef __VEC__
- case OPT_MODE_VECTOR_SIMPLE:
- case OPT_MODE_VECTOR_UNROLLED:
- DrawSmoke_Vector(global, flurry, flurry->s, b);
- break;
-#endif
-#endif /* 0 */
- default:
- break;
- }
-
- glDisable(GL_TEXTURE_2D);
-}
-
-static
-void GLResize(global_info_t *global, float w, float h)
-{
- global->sys_glWidth = w;
- global->sys_glHeight = h;
-}
-
-/* new window size or exposure */
-ENTRYPOINT void reshape_flurry(ModeInfo *mi, int width, int height)
-{
- global_info_t *global = flurry_info + MI_SCREEN(mi);
-
- glXMakeCurrent(MI_DISPLAY(mi), global->window, *global->glx_context);
-
- glViewport(0.0, 0.0, width, height);
- glMatrixMode(GL_PROJECTION);
- glLoadIdentity();
- glOrtho(0, width, 0, height,-1,1);
- glMatrixMode(GL_MODELVIEW);
- glClear(GL_COLOR_BUFFER_BIT);
- glFlush();
- GLResize(global, (float)width, (float)height);
-}
-
-ENTRYPOINT void
-init_flurry(ModeInfo * mi)
-{
- int screen = MI_SCREEN(mi);
- int i;
- global_info_t *global;
- enum {
- PRESET_INSANE = -1,
- PRESET_WATER = 0,
- PRESET_FIRE,
- PRESET_PSYCHEDELIC,
- PRESET_RGB,
- PRESET_BINARY,
- PRESET_CLASSIC,
- PRESET_MAX
- } preset_num;
-
- MI_INIT (mi, flurry_info);
-
- global = &flurry_info[screen];
-
- global->gTimeCounter = currentTime();
-
- global->window = MI_WINDOW(mi);
-
- global->flurry = NULL;
-
- if (!preset_str || !*preset_str) preset_str = DEF_PRESET;
- if (!strcmp(preset_str, "random")) {
- preset_num = random() % PRESET_MAX;
- } else if (!strcmp(preset_str, "water")) {
- preset_num = PRESET_WATER;
- } else if (!strcmp(preset_str, "fire")) {
- preset_num = PRESET_FIRE;
- } else if (!strcmp(preset_str, "psychedelic")) {
- preset_num = PRESET_PSYCHEDELIC;
- } else if (!strcmp(preset_str, "rgb")) {
- preset_num = PRESET_RGB;
- } else if (!strcmp(preset_str, "binary")) {
- preset_num = PRESET_BINARY;
- } else if (!strcmp(preset_str, "classic")) {
- preset_num = PRESET_CLASSIC;
- } else if (!strcmp(preset_str, "insane")) {
- preset_num = PRESET_INSANE;
- } else {
- fprintf(stderr, "%s: unknown preset %s\n", progname, preset_str);
- exit(1);
- }
-
- switch (preset_num) {
- case PRESET_WATER: {
- for (i = 0; i < 9; i++) {
- flurry_info_t *flurry;
-
- flurry = new_flurry_info(global, 1, blueColorMode, 100.0, 2.0, 2.0);
- flurry->next = global->flurry;
- global->flurry = flurry;
- }
- break;
- }
- case PRESET_FIRE: {
- flurry_info_t *flurry;
-
- flurry = new_flurry_info(global, 12, slowCyclicColorMode, 10000.0, 0.2, 1.0);
- flurry->next = global->flurry;
- global->flurry = flurry;
- break;
- }
- case PRESET_PSYCHEDELIC: {
- flurry_info_t *flurry;
-
- flurry = new_flurry_info(global, 10, rainbowColorMode, 200.0, 2.0, 1.0);
- flurry->next = global->flurry;
- global->flurry = flurry;
- break;
- }
- case PRESET_RGB: {
- flurry_info_t *flurry;
-
- flurry = new_flurry_info(global, 3, redColorMode, 100.0, 0.8, 1.0);
- flurry->next = global->flurry;
- global->flurry = flurry;
-
- flurry = new_flurry_info(global, 3, greenColorMode, 100.0, 0.8, 1.0);
- flurry->next = global->flurry;
- global->flurry = flurry;
-
- flurry = new_flurry_info(global, 3, blueColorMode, 100.0, 0.8, 1.0);
- flurry->next = global->flurry;
- global->flurry = flurry;
- break;
- }
- case PRESET_BINARY: {
- flurry_info_t *flurry;
-
- flurry = new_flurry_info(global, 16, tiedyeColorMode, 1000.0, 0.5, 1.0);
- flurry->next = global->flurry;
- global->flurry = flurry;
-
- flurry = new_flurry_info(global, 16, tiedyeColorMode, 1000.0, 1.5, 1.0);
- flurry->next = global->flurry;
- global->flurry = flurry;
- break;
- }
- case PRESET_CLASSIC: {
- flurry_info_t *flurry;
-
- flurry = new_flurry_info(global, 5, tiedyeColorMode, 10000.0, 1.0, 1.0);
- flurry->next = global->flurry;
- global->flurry = flurry;
- break;
- }
- case PRESET_INSANE: {
- flurry_info_t *flurry;
-
- flurry = new_flurry_info(global, 64, tiedyeColorMode, 1000.0, 0.5, 0.5);
- flurry->next = global->flurry;
- global->flurry = flurry;
-
- break;
- }
- default: {
- fprintf(stderr, "%s: unknown preset %s\n", progname, preset_str);
- exit(1);
- }
- }
-
- if ((global->glx_context = init_GL(mi)) != NULL) {
- reshape_flurry(mi, MI_WIDTH(mi), MI_HEIGHT(mi));
- GLSetupRC(global);
- } else {
- MI_CLEARWINDOW(mi);
- }
-
- global->first = 1;
- global->oldFrameTime = -1;
-}
-
-ENTRYPOINT void
-draw_flurry(ModeInfo * mi)
-{
- double newFrameTime;
- double deltaFrameTime = 0;
- double brite;
- GLfloat alpha;
-
- global_info_t *global = flurry_info + MI_SCREEN(mi);
- flurry_info_t *flurry;
- Display *display = MI_DISPLAY(mi);
- Window window = MI_WINDOW(mi);
-
- newFrameTime = currentTime();
- if (global->oldFrameTime == -1) {
- /* special case the first frame -- clear to black */
- alpha = 1.0;
- } else {
- /*
- * this clamps the speed at below 60fps and, here
- * at least, produces a reasonably accurate 50fps.
- * (probably part CPU speed and part scheduler).
- *
- * Flurry is designed to run at this speed; much higher
- * than that and the blending causes the display to
- * saturate, which looks really ugly.
- */
- if (newFrameTime - global->oldFrameTime < 1/60.0) {
- usleep(MAX_(1,(int)(20000 * (newFrameTime - global->oldFrameTime))));
- return;
-
- }
- deltaFrameTime = newFrameTime - global->oldFrameTime;
- alpha = 5.0 * deltaFrameTime;
- }
- global->oldFrameTime = newFrameTime;
-
- if (alpha > 0.2) alpha = 0.2;
-
- if (!global->glx_context)
- return;
-
- if (global->first) {
- global->texid = MakeTexture();
- global->first = 0;
- }
- glDrawBuffer(GL_BACK);
- glXMakeCurrent(display, window, *global->glx_context);
-
- glEnable(GL_BLEND);
- glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
-
- glColor4f(0.0, 0.0, 0.0, alpha);
- glRectd(0, 0, global->sys_glWidth, global->sys_glHeight);
-
- brite = pow(deltaFrameTime,0.75) * 10;
- for (flurry = global->flurry; flurry; flurry=flurry->next) {
- GLRenderScene(global, flurry, brite * flurry->briteFactor);
- }
-
- if (mi->fps_p) do_fps (mi);
-
- glFinish();
- glXSwapBuffers(display, window);
-}
-
-ENTRYPOINT void
-free_flurry(ModeInfo * mi)
-{
- global_info_t *global = &flurry_info[MI_SCREEN(mi)];
- flurry_info_t *flurry;
-
- if (!global->glx_context) return;
- glXMakeCurrent(MI_DISPLAY(mi), global->window, *global->glx_context);
-
- for (flurry = global->flurry; flurry; flurry=flurry->next)
- delete_flurry_info(flurry);
- if (global->texid) glDeleteTextures (1, &global->texid);
-}
-
-XSCREENSAVER_MODULE ("Flurry", flurry)
-
-#endif
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