From: =?utf-8?b?0L3QsNCx?= Last-Update: 2025-05-25 Bug-Debian: http://bugs.debian.org/1079338 Subject: matrixview.c => .cpp for new imagemagick + port to ImageMagick 7 --- src/Makefile.am | 3 +- src/matrixview.c | 767 ----------------------------------------------------- src/matrixview.cpp | 767 +++++++++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 769 insertions(+), 768 deletions(-) delete mode 100644 src/matrixview.c create mode 100644 src/matrixview.cpp diff --git a/src/Makefile.am b/src/Makefile.am index 7da3cf6..ec84ff8 100644 --- a/src/Makefile.am +++ b/src/Makefile.am @@ -33,7 +33,8 @@ lattice_SOURCES = driver.h driver.c lattice.c lattice_textures.h lattice_texture lattice_LDADD = @BZIP2@ lorenz_SOURCES = driver.c lorenz.cpp lorenz_LDADD = -LrsMath -lrsMath -matrixview_SOURCES = driver.c matrixview.c matrixview_textures.c +matrixview_SOURCES = driver.c matrixview.cpp matrixview_textures.c +matrixview_CXXFLAGS = @Wand_CFLAGS@ matrixview_CFLAGS = @Wand_CFLAGS@ matrixview_LDADD = @BZIP2@ @PTHREAD_LIBS@ @Wand_LIBS@ plasma_SOURCES = driver.c plasma.cpp rsDefines.h rsRand.h diff --git a/src/matrixview.c b/src/matrixview.c deleted file mode 100644 index d76930c..0000000 --- a/src/matrixview.c +++ /dev/null @@ -1,767 +0,0 @@ -/* - * Copyright (C) 2003 Alex Zolotov - * Mucked with by Tugrul Galatali - * - * MatrixView is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * MatrixView is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ - -// MatrixView screen saver - -#include -#include -#include -#include -#include -#include -#include -#include - -#include "driver.h" -#include "loadTexture.h" -#include "matrixview_textures.h" -#include "rsDefines.h" -#include "rsRand.h" - -const char *hack_name = "MatrixView"; - -int cycleScene = 5; -int cycleMatrix = 5; -float contrast = -1; - -// Settings for our light. Try playing with these (or add more lights). -float Light_Ambient[] = { 0.1f, 0.1f, 0.1f, 1.0f }; -float Light_Diffuse[] = { 1.2f, 1.2f, 1.2f, 1.0f }; -float Light_Position[] = { 2.0f, 2.0f, 0.0f, 1.0f }; - -unsigned char *font; -unsigned char *pics; - -unsigned char flare[16] = { 0, 0, 0, 0, - 0, 180, 0, 0, - 0, 0, 0, 0, - 0, 0, 0, 0 -}; - -#define MAX_TEXT_X 320 -#define MAX_TEXT_Y 240 -int text_x = 90; -int text_y = 70; -#define _text_x text_x/2 -#define _text_y text_y/2 - -// Scene position -#define Z_Off -128.0f -#define Z_Depth 8 - -unsigned char speed[MAX_TEXT_X]; -unsigned char text[MAX_TEXT_X * MAX_TEXT_Y + MAX_TEXT_X]; -unsigned char text_light[MAX_TEXT_X * MAX_TEXT_Y + MAX_TEXT_X]; //255 - white; 254 - none; -float text_depth[MAX_TEXT_X * MAX_TEXT_Y + MAX_TEXT_X]; - -unsigned char *pic = NULL; -float bump_pic[MAX_TEXT_X * MAX_TEXT_Y + MAX_TEXT_X]; -int exit_mode = 0; //0 - none; 1 - exit mode (explode main text); -float r1 = 0.2, r2 = 1, r3 = 0.4; -float texture_add = 0; -float exit_angle = 0; -long one_frame = 60; - -int pic_mode = 0; //0 - none; 1 - pic fade in; 2 - pic fade out; -int pic_fade = 0; - -float *pts; -float *texcoords; -unsigned char *colors; - -#include -#include -#include -#include -#include -#include - -char *dirName = NULL; -DIR *imageDir; - -unsigned char *next_pic = NULL; - -// Directory scanning + image loading code in a separate function callable either from loadNextImage or another thread if pthreads is available. -void loadNextImageFromDisk() { - auto magick_wand = MagickCore::NewMagickWand(); - auto exception = MagickCore::AcquireExceptionInfo(); - int dirLoop = 0; - - int imageLoaded = 0; - do { - struct dirent *file; - - if (!imageDir) { - if (dirLoop) { - dirName = NULL; - return; - } - - imageDir = opendir (dirName); - dirLoop = 1; - } - - file = readdir (imageDir); - if (file) { - struct stat fileStat; - char *full_path_and_name = (char *)malloc(strlen(dirName) + 1 + strlen(file->d_name) + 1); - - if (full_path_and_name) { - sprintf(full_path_and_name, "%s/%s", dirName, file->d_name); - - if (!stat(full_path_and_name, (struct stat *)&fileStat)) { - if (S_ISREG(fileStat.st_mode)) { - if (MagickReadImage(magick_wand, full_path_and_name) == MagickCore::MagickFalse) { - char *description; - MagickCore::ExceptionType severity; - - description = MagickGetException (magick_wand, &severity); - fprintf (stderr, "Error loading %s: %s\n", full_path_and_name, description); - description = (char *)MagickCore::MagickRelinquishMemory (description); - } else { - imageLoaded = 1; - } - } - } - - free(full_path_and_name); - } else { - fprintf (stderr, "Out of memory\n"); - } - } else { - closedir(imageDir); - imageDir = NULL; - } - } while (!imageLoaded); - - MagickScaleImage (magick_wand, text_x, text_y); - MagickNormalizeImage (magick_wand); - MagickContrastImage (magick_wand, MagickCore::MagickTrue); - MagickNegateImage (magick_wand, MagickCore::MagickFalse); - - if (!next_pic) - next_pic = (unsigned char *)malloc (text_x * text_y); - - ExportImagePixels (GetImageFromMagickWand(magick_wand), 0, 0, text_x, text_y, "I", MagickCore::CharPixel, next_pic, exception); - MagickCore::DestroyExceptionInfo(exception); - - magick_wand = DestroyMagickWand (magick_wand); -} - -#include -pthread_t *imageLoadingThread = NULL; -pthread_mutex_t *next_pic_mutex; -pthread_cond_t *next_pic_cond; -volatile int exiting = 0; - -void *imageLoadingThreadMain(void *arg) { - do { - loadNextImageFromDisk(); - - pthread_cond_wait(next_pic_cond, next_pic_mutex); - } while (!exiting); - - pthread_exit(NULL); - - return NULL; -} - -void loadNextImage () -{ - if (dirName) { - if (!imageLoadingThread) { - next_pic_mutex = (pthread_mutex_t *)malloc(sizeof(pthread_mutex_t)); - pthread_mutex_init(next_pic_mutex, NULL); - - pthread_mutex_lock(next_pic_mutex); - - next_pic_cond = (pthread_cond_t *)malloc(sizeof(pthread_cond_t)); - pthread_cond_init(next_pic_cond, NULL); - - imageLoadingThread = (pthread_t *)malloc(sizeof(pthread_t)); - pthread_create(imageLoadingThread, NULL, imageLoadingThreadMain, NULL); - } else { - pthread_mutex_lock(next_pic_mutex); - if (pic) { - unsigned char *tmp = next_pic; - next_pic = pic; - pic = tmp; - } else { - pic = next_pic; - next_pic = NULL; - } - pthread_mutex_unlock(next_pic_mutex); - - pthread_cond_signal(next_pic_cond); - } - } else { - auto exception = MagickCore::AcquireExceptionInfo(); - MagickCore::Image *image = NULL, *scaled_image; - MagickCore::ImageInfo *image_info; - - if (!pics) - LOAD_TEXTURE (pics, cpics, cpics_compressedsize, cpics_size) - - if ((text_x != 90) || (text_y != 70)) { - if (!pic) - pic = (unsigned char *)malloc (text_x * text_y); - - image_info = MagickCore::CloneImageInfo ((MagickCore::ImageInfo *) NULL); - image_info->size = (char *)MagickCore::AcquireMagickMemory(sizeof("90x70")); - strcpy(image_info->size, "90x70"); - image = AcquireImage(image_info, exception); - - ImportImagePixels(image, 0, 0, 90, 70, "I", MagickCore::CharPixel, (unsigned char *)(pics + ((random () & 15) * (90 * 70))), exception); - - scaled_image = ScaleImage (image, text_x, text_y, exception); - - ExportImagePixels (scaled_image, 0, 0, text_x, text_y, "I", MagickCore::CharPixel, pic, exception); - - MagickCore::DestroyImage (image); - MagickCore::DestroyImage (scaled_image); - } else { - if (!pics) - LOAD_TEXTURE (pics, cpics, cpics_compressedsize, cpics_size) - - pic = (unsigned char *)(pics + ((random () & 15) * (text_x * text_y))); - } - - MagickCore::DestroyExceptionInfo(exception); - } -} - -void draw_illuminatedchar (long num, float x, float y, float z) -{ - float tx, ty; - long num2, num3; - - num2 = num / 10; - num3 = num - (num2 * 10); - ty = (float)num2 / 7; - tx = (float)num3 / 10; - glNormal3f (0.0f, 0.0f, 1.0f); // Needed for lighting - glColor4f (0.9, 0.4, 0.3, .5); // Basic polygon color - - glTexCoord2f (tx, ty); - glVertex3f (x, y, z); - glTexCoord2f (tx + 0.1, ty); - glVertex3f (x + 1, y, z); - glTexCoord2f (tx + 0.1, ty + 0.166); - glVertex3f (x + 1, y - 1, z); - glTexCoord2f (tx, ty + 0.166); - glVertex3f (x, y - 1, z); -} - -void draw_flare (float x, float y, float z) //flare -{ - glNormal3f (0.0f, 0.0f, 1.0f); // Needed for lighting - glColor4f (0.9, 0.4, 0.3, .8); // Basic polygon color - - glTexCoord2f (0, 0); - glVertex3f (x - 1, y + 1, z); - glTexCoord2f (0.75, 0); - glVertex3f (x + 2, y + 1, z); - glTexCoord2f (0.75, 0.75); - glVertex3f (x + 2, y - 2, z); - glTexCoord2f (0, 0.75); - glVertex3f (x - 1, y - 2, z); -} - -void draw_text () -{ - int x, y; - long p = 0; - int c, c_pic; - - if (pic_mode == 1) - if (pic_fade < 255) - pic_fade++; - - if (pic_mode == 2) - if (pic_fade > 0) - pic_fade--; - - int vp = 0, tp = 0, cp = 0; - for (y = _text_y; y > -_text_y; y--) { - for (x = -_text_x; x < _text_x; x++) { - c = text_light[p] - (text[p] >> 1); - c += pic_fade; - if (c > 255) - c = 255; - - if (pic) { - c_pic = pic[p] * contrast - (255 - pic_fade); - - if (c_pic < 0) - c_pic = 0; - - c -= c_pic; - - if (c < 0) - c = 0; - - bump_pic[p] = (255.0f - c_pic) / (256 / Z_Depth); - } else { - bump_pic[p] = Z_Depth; - } - - if (c > 10) - if (text[p]) { - long num = text[p] + 1; - float light = c; - const float z = text_depth[p] + bump_pic[p]; - float tx, ty; - long num2, num3; - - num &= 63; - light = light / 255; //light=7-light;num+=(light*60); - num2 = num / 10; - num3 = num - (num2 * 10); - ty = (float)num2 / 7; - tx = (float)num3 / 10; - -#define VA(tx, ty, x, y, z, light) \ - colors[cp++] = 0.9 * 255; colors[cp++] = 0.4 * 255; colors[cp++] = 0.3 * 255; colors[cp++] = light * 255; \ - texcoords[tp++] = tx; texcoords[tp++] = ty; \ - pts[vp++] = x; pts[vp++] = y; pts[vp++] = z; - - VA(tx, ty, x, y, z, light); - VA(tx + 0.1, ty, x + 1, y, z, light); - VA(tx + 0.1, ty + 0.166, x + 1, y - 1, z, light); - VA(tx, ty + 0.166, x, y - 1, z, light); - } - - if (exit_mode) - text_depth[p] += (((float)text[p] - 128) / 2000); - else if (text_depth[p] < 0.1) - text_depth[p] = 0; - else - text_depth[p] /= 1.1; - - p++; - } - } - - glNormal3f (0.0f, 0.0f, 1.0f); // Needed for lighting - - glDrawArrays(GL_QUADS, 0, tp >> 1); -} - -void draw_illuminatedtext (void) -{ - float x, y; - long p = 0; - - for (y = _text_y; y > -_text_y; y--) { - for (x = -_text_x; x < _text_x; x++) { - if (text_light[p] > 128) - if (text_light[p + text_x] < 10) - draw_illuminatedchar (text[p] + 1, x, y, text_depth[p] + bump_pic[p]); - p++; - } - } -} - -void draw_flares (void) -{ - float x, y; - long p = 0; - - for (y = _text_y; y > -_text_y; y--) { - for (x = -_text_x; x < _text_x; x++) { - if (text_light[p] > 128) - if (text_light[p + text_x] < 10) - draw_flare (x, y, text_depth[p] + bump_pic[p]); - p++; - } - } -} - -void scroll (double dCurrentTime) -{ - unsigned int a, s, polovina; - static double dLastCycle = -1; - static double dLastMove = -1; - - //====== CHANGING SCENE ====== - if (cycleScene > 0) { - if (pic_mode == 1) - if (dCurrentTime - dLastCycle > cycleScene) { - pic_mode = 2; - - if ((random () & 63) == 63) - exit_mode = 1; - } - - if (dCurrentTime - dLastCycle > cycleScene + cycleMatrix) - dLastCycle = dCurrentTime; - - if (dCurrentTime == dLastCycle) { - loadNextImage (); - - // If a picture isn't available, don't switch modes and skip the cycleScene interval. - if (pic) - pic_mode = 1; - else - dLastCycle -= cycleScene; - - if ((random () & 3) == 3) - exit_mode = 0; - } - } - - if (dCurrentTime - dLastMove > 1.0 / (text_y / 1.5)) { - dLastMove = dCurrentTime; - - polovina = (text_x * text_y) / 2; - s = 0; - for (a = (text_x * text_y) + text_x - 1; a > text_x; a--) { - if (speed[s]) { - text_light[a] = text_light[a - text_x]; //scroll light table down - } - s++; - if (s >= text_x) - s = 0; - } - - //============================ - //for (a = (text_x * text_y) + text_x - 1; a > text_x; a--) { - // text_light[a] = text_light[a - text_x]; //scroll light table down - //} - memmove ((void *)(&text_light[0] + text_x), (void *)&text_light, (text_x * text_y) - 1); - - //for (a = 0; a < text_x; a++) - // text_light[a] = 253; //clear top line (in light table) - memset ((void *)&text_light, 253, text_x); - - s = 0; - for (a = polovina; a < (text_x * text_y); a++) { - if (text_light[a] == 255) - text_light[s] = text_light[s + text_x] >> 1; //make black bugs in top line - - s++; - - if (s >= text_x) - s = 0; - } - } -} - -void make_change (double dCurrentTime) -{ - unsigned int r = random () & 0xFFFF; - - r >>= 3; - if (r < (text_x * text_y)) - text[r] += 133; //random bugs - - r = random () & 0xFFFF; - r >>= 7; - if (r < text_x) - if (text_light[r] != 0) - text_light[r] = 255; //white bugs - - scroll (dCurrentTime); -} - -void hack_reshape (xstuff_t * XStuff) -{ - glViewport (0, 0, XStuff->windowWidth, XStuff->windowHeight); - - glMatrixMode (GL_PROJECTION); - glLoadIdentity (); - //gluPerspective (45.0f, (GLfloat) XStuff->windowWidth / (GLfloat) XStuff->windowHeight, 0.1f, 150.0f); - glFrustum(-_text_x, _text_x, -_text_y, _text_y, -Z_Off - Z_Depth, -Z_Off); - - glMatrixMode (GL_MODELVIEW); -} - -void load_texture () -{ - long a; - - LOAD_TEXTURE (font, cfont, cfont_compressedsize, cfont_size) - - for (a = 0; a < 131072; a++) { - if ((a >> 9) & 2) - font[a] = font[a]; - else - font[a] = font[a] >> 1; - } -} - -void make_text () -{ - long a; - unsigned int r; - - for (a = 0; a < (text_x * text_y); a++) { - r = random () & 0xFFFF; - text[a] = r; - } - - for (a = 0; a < text_x; a++) - speed[a] = random () & 1; -} - -void ourBuildTextures () -{ - GLenum gluerr; - - glBindTexture (GL_TEXTURE_2D, 1); - - if ((gluerr = gluBuild2DMipmaps (GL_TEXTURE_2D, GL_RGBA8, 512, 256, GL_GREEN, GL_UNSIGNED_BYTE, (void *)font))) { - fprintf (stderr, "GLULib%s\n", gluErrorString (gluerr)); - exit (-1); - } - - glBindTexture (GL_TEXTURE_2D, 2); - - if ((gluerr = gluBuild2DMipmaps (GL_TEXTURE_2D, GL_RGBA8, 512, 256, GL_LUMINANCE, GL_UNSIGNED_BYTE, (void *)font))) { - fprintf (stderr, "GLULib%s\n", gluErrorString (gluerr)); - exit (-1); - } - - FREE_TEXTURE (font) - - glBindTexture (GL_TEXTURE_2D, 3); - - if ((gluerr = gluBuild2DMipmaps (GL_TEXTURE_2D, GL_RGBA8, 4, 4, GL_LUMINANCE, GL_UNSIGNED_BYTE, (void *)flare))) { - fprintf (stderr, "GLULib%s\n", gluErrorString (gluerr)); - exit (-1); - } - - // Some pretty standard settings for wrapping and filtering. - glTexParameterf (GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT); - glTexParameterf (GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT); - - // We start with GL_DECAL mode. - glTexEnvf (GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_DECAL); -} - -void hack_init (xstuff_t * XStuff) // Called right after the window is created, and OpenGL is initialized. -{ - load_texture (); - make_text (); - - MagickCore::MagickWandGenesis (); - - ourBuildTextures (); - - // Buffers for drawing the bulk of the characters using arrays - pts = (float *)malloc(text_y * text_x * 3 * 4 * sizeof(float)); - texcoords = (float *)malloc(text_y * text_x * 2 * 4 * sizeof(float)); - colors = (unsigned char *)malloc(text_y * text_x * 4 * 4 * sizeof(unsigned char)); - - glVertexPointer(3, GL_FLOAT, 0, pts); - glEnableClientState(GL_VERTEX_ARRAY); - - glColorPointer(4, GL_UNSIGNED_BYTE, 0, colors); - glEnableClientState(GL_COLOR_ARRAY); - - glTexCoordPointer(2, GL_FLOAT, 0, texcoords); - glEnableClientState(GL_TEXTURE_COORD_ARRAY); - - // Color to clear color buffer to. - glClearColor (0.0f, 0.0f, 0.0f, 0.0f); - - // Depth to clear depth buffer to; type of test. - glClearDepth (1.0); - glDepthFunc (GL_LESS); - - // Enables Smooth Color Shading; try GL_FLAT for (lack of) fun. - glShadeModel (GL_SMOOTH); - - // Set up a light, turn it on. - glLightfv (GL_LIGHT1, GL_POSITION, Light_Position); - glLightfv (GL_LIGHT1, GL_AMBIENT, Light_Ambient); - glLightfv (GL_LIGHT1, GL_DIFFUSE, Light_Diffuse); - glEnable (GL_LIGHT1); - - // A handy trick -- have surface material mirror the color. - glColorMaterial (GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE); - glEnable (GL_COLOR_MATERIAL); - - hack_reshape (XStuff); -} - -void hack_cleanup (xstuff_t * XStuff) -{ - if (imageLoadingThread) { - // Try acquiring the lock first to make sure the thread is asleep and signallable. Otherwise the signal will miss the other thread and the pthread_join will hang. - pthread_mutex_lock(next_pic_mutex); - - exiting = 1; - pthread_cond_signal(next_pic_cond); - - pthread_mutex_unlock(next_pic_mutex); - - pthread_join(*imageLoadingThread, NULL); - } - - free(pts); - free(texcoords); - free(colors); -} - -void hack_draw (xstuff_t * XStuff, double currentTime, float frameTime) -{ - glBindTexture (GL_TEXTURE_2D, 1); - glEnable (GL_BLEND); - glEnable (GL_TEXTURE_2D); - - glDisable (GL_LIGHTING); - glBlendFunc (GL_SRC_ALPHA, GL_ONE); - glDisable (GL_DEPTH_TEST); - glTexParameterf (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST_MIPMAP_LINEAR); - glTexParameterf (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); - glMatrixMode (GL_MODELVIEW); - glLoadIdentity (); - glTranslatef (0.0f, 0.0f, Z_Off); - - // Clear the color and depth buffers. - glClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); - - if (exit_mode) - exit_angle += 0.08; - else - exit_angle /= 1.1; - - if (texture_add > 0) - texture_add /= 1.05; - - glRotatef (exit_angle, r1, r2, r3); - - // OK, let's start drawing our planer quads. - draw_text (); - - glBindTexture (GL_TEXTURE_2D, 2); - glBegin (GL_QUADS); - draw_illuminatedtext (); - glEnd (); - - glBindTexture (GL_TEXTURE_2D, 3); - glBegin (GL_QUADS); - draw_flares (); - glEnd (); - - make_change (currentTime); - - glLoadIdentity (); - glMatrixMode (GL_PROJECTION); -} - -void hack_handle_opts (int argc, char **argv) -{ - while (1) { - int c; - -#ifdef HAVE_GETOPT_H - static struct option long_options[] = { - {"help", 0, 0, 'h'}, - DRIVER_OPTIONS_LONG - {"images", 1, 0, 'i'}, - {"scene_interval", 1, 0, 's'}, - {"matrix_interval", 1, 0, 'm'}, - {"matrix_width", 1, 0, 'X'}, - {"matrix_height", 1, 0, 'Y'}, - {"contrast", 1, 0, 'c'}, - {0, 0, 0, 0} - }; - - c = getopt_long (argc, argv, DRIVER_OPTIONS_SHORT "hs:m:X:Y:c:i:", long_options, NULL); -#else - c = getopt (argc, argv, DRIVER_OPTIONS_SHORT "hs:m:X:Y:c:i:"); -#endif - if (c == -1) - break; - - switch (c) { - DRIVER_OPTIONS_CASES case 'h':printf ("%s:" -#ifndef HAVE_GETOPT_H - " Not built with GNU getopt.h, long options *NOT* enabled." -#endif - "\n" DRIVER_OPTIONS_HELP "\t--images/-i \n\t--scene_interval/-s \n" "\t--matrix_interval/-m \n" - "\t--matrix_width/-X \n" "\t--matrix_height/-Y \n" "\t--contrast/-c \n", argv[0]); - - exit (1); - - case 'i': - { - struct stat fileStat; - - if (!stat(optarg, (struct stat *)&fileStat)) { - if (S_ISDIR(fileStat.st_mode)) { - imageDir = opendir (optarg); - if (imageDir) { - dirName = (char *)malloc (strlen (optarg) + 1); - strcpy (dirName, optarg); - } else { - fprintf (stderr, "--images: Could not open %s\n", optarg); - } - } else { - fprintf(stderr, "--images: %s is not a directory\n", optarg); - } - } else { - fprintf(stderr, "--images: Could not stat %s\n", optarg); - } - } - - break; - case 's': - cycleScene = strtol_minmaxdef (optarg, 10, 0, 120, 1, 5, "--scene_interval: "); - break; - case 'm': - cycleMatrix = strtol_minmaxdef (optarg, 10, 3, 120, 1, 5, "--matrix_interval: "); - break; - case 'X': - text_x = strtol_minmaxdef (optarg, 10, 40, MAX_TEXT_X, 1, 90, "--matrix_width: "); - break; - case 'Y': - text_y = strtol_minmaxdef (optarg, 10, 30, MAX_TEXT_Y, 1, 70, "--matrix_height: "); - break; - case 'c': - contrast = strtol_minmaxdef (optarg, 10, 0, 100, 1, 75, "--contrast: ") / 100.0f; - break; - } - } - -#ifdef HAVE_IMAGEMAGICK - // If contrast is unset, set it to 0.75 for external images, 1 for internal. - if (contrast == -1) { - if (dirName) - contrast = 0.75; - else - contrast = 1; - } -#else - // If contrast is unset, set it to 1. - if (contrast == -1) - contrast = 1; - - if (cycleScene > 0) { - if ((text_x != 90) || (text_y != 70)) { - printf("%s: Not built with ImageMagick, can not scale images. Resetting matrix resolution to 90x70.\n", argv[0]); - - text_x = 90; - text_y = 70; - } - } -#endif -} - diff --git a/src/matrixview.cpp b/src/matrixview.cpp new file mode 100644 index 0000000..d76930c --- /dev/null +++ b/src/matrixview.cpp @@ -0,0 +1,767 @@ +/* + * Copyright (C) 2003 Alex Zolotov + * Mucked with by Tugrul Galatali + * + * MatrixView is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * MatrixView is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +// MatrixView screen saver + +#include +#include +#include +#include +#include +#include +#include +#include + +#include "driver.h" +#include "loadTexture.h" +#include "matrixview_textures.h" +#include "rsDefines.h" +#include "rsRand.h" + +const char *hack_name = "MatrixView"; + +int cycleScene = 5; +int cycleMatrix = 5; +float contrast = -1; + +// Settings for our light. Try playing with these (or add more lights). +float Light_Ambient[] = { 0.1f, 0.1f, 0.1f, 1.0f }; +float Light_Diffuse[] = { 1.2f, 1.2f, 1.2f, 1.0f }; +float Light_Position[] = { 2.0f, 2.0f, 0.0f, 1.0f }; + +unsigned char *font; +unsigned char *pics; + +unsigned char flare[16] = { 0, 0, 0, 0, + 0, 180, 0, 0, + 0, 0, 0, 0, + 0, 0, 0, 0 +}; + +#define MAX_TEXT_X 320 +#define MAX_TEXT_Y 240 +int text_x = 90; +int text_y = 70; +#define _text_x text_x/2 +#define _text_y text_y/2 + +// Scene position +#define Z_Off -128.0f +#define Z_Depth 8 + +unsigned char speed[MAX_TEXT_X]; +unsigned char text[MAX_TEXT_X * MAX_TEXT_Y + MAX_TEXT_X]; +unsigned char text_light[MAX_TEXT_X * MAX_TEXT_Y + MAX_TEXT_X]; //255 - white; 254 - none; +float text_depth[MAX_TEXT_X * MAX_TEXT_Y + MAX_TEXT_X]; + +unsigned char *pic = NULL; +float bump_pic[MAX_TEXT_X * MAX_TEXT_Y + MAX_TEXT_X]; +int exit_mode = 0; //0 - none; 1 - exit mode (explode main text); +float r1 = 0.2, r2 = 1, r3 = 0.4; +float texture_add = 0; +float exit_angle = 0; +long one_frame = 60; + +int pic_mode = 0; //0 - none; 1 - pic fade in; 2 - pic fade out; +int pic_fade = 0; + +float *pts; +float *texcoords; +unsigned char *colors; + +#include +#include +#include +#include +#include +#include + +char *dirName = NULL; +DIR *imageDir; + +unsigned char *next_pic = NULL; + +// Directory scanning + image loading code in a separate function callable either from loadNextImage or another thread if pthreads is available. +void loadNextImageFromDisk() { + auto magick_wand = MagickCore::NewMagickWand(); + auto exception = MagickCore::AcquireExceptionInfo(); + int dirLoop = 0; + + int imageLoaded = 0; + do { + struct dirent *file; + + if (!imageDir) { + if (dirLoop) { + dirName = NULL; + return; + } + + imageDir = opendir (dirName); + dirLoop = 1; + } + + file = readdir (imageDir); + if (file) { + struct stat fileStat; + char *full_path_and_name = (char *)malloc(strlen(dirName) + 1 + strlen(file->d_name) + 1); + + if (full_path_and_name) { + sprintf(full_path_and_name, "%s/%s", dirName, file->d_name); + + if (!stat(full_path_and_name, (struct stat *)&fileStat)) { + if (S_ISREG(fileStat.st_mode)) { + if (MagickReadImage(magick_wand, full_path_and_name) == MagickCore::MagickFalse) { + char *description; + MagickCore::ExceptionType severity; + + description = MagickGetException (magick_wand, &severity); + fprintf (stderr, "Error loading %s: %s\n", full_path_and_name, description); + description = (char *)MagickCore::MagickRelinquishMemory (description); + } else { + imageLoaded = 1; + } + } + } + + free(full_path_and_name); + } else { + fprintf (stderr, "Out of memory\n"); + } + } else { + closedir(imageDir); + imageDir = NULL; + } + } while (!imageLoaded); + + MagickScaleImage (magick_wand, text_x, text_y); + MagickNormalizeImage (magick_wand); + MagickContrastImage (magick_wand, MagickCore::MagickTrue); + MagickNegateImage (magick_wand, MagickCore::MagickFalse); + + if (!next_pic) + next_pic = (unsigned char *)malloc (text_x * text_y); + + ExportImagePixels (GetImageFromMagickWand(magick_wand), 0, 0, text_x, text_y, "I", MagickCore::CharPixel, next_pic, exception); + MagickCore::DestroyExceptionInfo(exception); + + magick_wand = DestroyMagickWand (magick_wand); +} + +#include +pthread_t *imageLoadingThread = NULL; +pthread_mutex_t *next_pic_mutex; +pthread_cond_t *next_pic_cond; +volatile int exiting = 0; + +void *imageLoadingThreadMain(void *arg) { + do { + loadNextImageFromDisk(); + + pthread_cond_wait(next_pic_cond, next_pic_mutex); + } while (!exiting); + + pthread_exit(NULL); + + return NULL; +} + +void loadNextImage () +{ + if (dirName) { + if (!imageLoadingThread) { + next_pic_mutex = (pthread_mutex_t *)malloc(sizeof(pthread_mutex_t)); + pthread_mutex_init(next_pic_mutex, NULL); + + pthread_mutex_lock(next_pic_mutex); + + next_pic_cond = (pthread_cond_t *)malloc(sizeof(pthread_cond_t)); + pthread_cond_init(next_pic_cond, NULL); + + imageLoadingThread = (pthread_t *)malloc(sizeof(pthread_t)); + pthread_create(imageLoadingThread, NULL, imageLoadingThreadMain, NULL); + } else { + pthread_mutex_lock(next_pic_mutex); + if (pic) { + unsigned char *tmp = next_pic; + next_pic = pic; + pic = tmp; + } else { + pic = next_pic; + next_pic = NULL; + } + pthread_mutex_unlock(next_pic_mutex); + + pthread_cond_signal(next_pic_cond); + } + } else { + auto exception = MagickCore::AcquireExceptionInfo(); + MagickCore::Image *image = NULL, *scaled_image; + MagickCore::ImageInfo *image_info; + + if (!pics) + LOAD_TEXTURE (pics, cpics, cpics_compressedsize, cpics_size) + + if ((text_x != 90) || (text_y != 70)) { + if (!pic) + pic = (unsigned char *)malloc (text_x * text_y); + + image_info = MagickCore::CloneImageInfo ((MagickCore::ImageInfo *) NULL); + image_info->size = (char *)MagickCore::AcquireMagickMemory(sizeof("90x70")); + strcpy(image_info->size, "90x70"); + image = AcquireImage(image_info, exception); + + ImportImagePixels(image, 0, 0, 90, 70, "I", MagickCore::CharPixel, (unsigned char *)(pics + ((random () & 15) * (90 * 70))), exception); + + scaled_image = ScaleImage (image, text_x, text_y, exception); + + ExportImagePixels (scaled_image, 0, 0, text_x, text_y, "I", MagickCore::CharPixel, pic, exception); + + MagickCore::DestroyImage (image); + MagickCore::DestroyImage (scaled_image); + } else { + if (!pics) + LOAD_TEXTURE (pics, cpics, cpics_compressedsize, cpics_size) + + pic = (unsigned char *)(pics + ((random () & 15) * (text_x * text_y))); + } + + MagickCore::DestroyExceptionInfo(exception); + } +} + +void draw_illuminatedchar (long num, float x, float y, float z) +{ + float tx, ty; + long num2, num3; + + num2 = num / 10; + num3 = num - (num2 * 10); + ty = (float)num2 / 7; + tx = (float)num3 / 10; + glNormal3f (0.0f, 0.0f, 1.0f); // Needed for lighting + glColor4f (0.9, 0.4, 0.3, .5); // Basic polygon color + + glTexCoord2f (tx, ty); + glVertex3f (x, y, z); + glTexCoord2f (tx + 0.1, ty); + glVertex3f (x + 1, y, z); + glTexCoord2f (tx + 0.1, ty + 0.166); + glVertex3f (x + 1, y - 1, z); + glTexCoord2f (tx, ty + 0.166); + glVertex3f (x, y - 1, z); +} + +void draw_flare (float x, float y, float z) //flare +{ + glNormal3f (0.0f, 0.0f, 1.0f); // Needed for lighting + glColor4f (0.9, 0.4, 0.3, .8); // Basic polygon color + + glTexCoord2f (0, 0); + glVertex3f (x - 1, y + 1, z); + glTexCoord2f (0.75, 0); + glVertex3f (x + 2, y + 1, z); + glTexCoord2f (0.75, 0.75); + glVertex3f (x + 2, y - 2, z); + glTexCoord2f (0, 0.75); + glVertex3f (x - 1, y - 2, z); +} + +void draw_text () +{ + int x, y; + long p = 0; + int c, c_pic; + + if (pic_mode == 1) + if (pic_fade < 255) + pic_fade++; + + if (pic_mode == 2) + if (pic_fade > 0) + pic_fade--; + + int vp = 0, tp = 0, cp = 0; + for (y = _text_y; y > -_text_y; y--) { + for (x = -_text_x; x < _text_x; x++) { + c = text_light[p] - (text[p] >> 1); + c += pic_fade; + if (c > 255) + c = 255; + + if (pic) { + c_pic = pic[p] * contrast - (255 - pic_fade); + + if (c_pic < 0) + c_pic = 0; + + c -= c_pic; + + if (c < 0) + c = 0; + + bump_pic[p] = (255.0f - c_pic) / (256 / Z_Depth); + } else { + bump_pic[p] = Z_Depth; + } + + if (c > 10) + if (text[p]) { + long num = text[p] + 1; + float light = c; + const float z = text_depth[p] + bump_pic[p]; + float tx, ty; + long num2, num3; + + num &= 63; + light = light / 255; //light=7-light;num+=(light*60); + num2 = num / 10; + num3 = num - (num2 * 10); + ty = (float)num2 / 7; + tx = (float)num3 / 10; + +#define VA(tx, ty, x, y, z, light) \ + colors[cp++] = 0.9 * 255; colors[cp++] = 0.4 * 255; colors[cp++] = 0.3 * 255; colors[cp++] = light * 255; \ + texcoords[tp++] = tx; texcoords[tp++] = ty; \ + pts[vp++] = x; pts[vp++] = y; pts[vp++] = z; + + VA(tx, ty, x, y, z, light); + VA(tx + 0.1, ty, x + 1, y, z, light); + VA(tx + 0.1, ty + 0.166, x + 1, y - 1, z, light); + VA(tx, ty + 0.166, x, y - 1, z, light); + } + + if (exit_mode) + text_depth[p] += (((float)text[p] - 128) / 2000); + else if (text_depth[p] < 0.1) + text_depth[p] = 0; + else + text_depth[p] /= 1.1; + + p++; + } + } + + glNormal3f (0.0f, 0.0f, 1.0f); // Needed for lighting + + glDrawArrays(GL_QUADS, 0, tp >> 1); +} + +void draw_illuminatedtext (void) +{ + float x, y; + long p = 0; + + for (y = _text_y; y > -_text_y; y--) { + for (x = -_text_x; x < _text_x; x++) { + if (text_light[p] > 128) + if (text_light[p + text_x] < 10) + draw_illuminatedchar (text[p] + 1, x, y, text_depth[p] + bump_pic[p]); + p++; + } + } +} + +void draw_flares (void) +{ + float x, y; + long p = 0; + + for (y = _text_y; y > -_text_y; y--) { + for (x = -_text_x; x < _text_x; x++) { + if (text_light[p] > 128) + if (text_light[p + text_x] < 10) + draw_flare (x, y, text_depth[p] + bump_pic[p]); + p++; + } + } +} + +void scroll (double dCurrentTime) +{ + unsigned int a, s, polovina; + static double dLastCycle = -1; + static double dLastMove = -1; + + //====== CHANGING SCENE ====== + if (cycleScene > 0) { + if (pic_mode == 1) + if (dCurrentTime - dLastCycle > cycleScene) { + pic_mode = 2; + + if ((random () & 63) == 63) + exit_mode = 1; + } + + if (dCurrentTime - dLastCycle > cycleScene + cycleMatrix) + dLastCycle = dCurrentTime; + + if (dCurrentTime == dLastCycle) { + loadNextImage (); + + // If a picture isn't available, don't switch modes and skip the cycleScene interval. + if (pic) + pic_mode = 1; + else + dLastCycle -= cycleScene; + + if ((random () & 3) == 3) + exit_mode = 0; + } + } + + if (dCurrentTime - dLastMove > 1.0 / (text_y / 1.5)) { + dLastMove = dCurrentTime; + + polovina = (text_x * text_y) / 2; + s = 0; + for (a = (text_x * text_y) + text_x - 1; a > text_x; a--) { + if (speed[s]) { + text_light[a] = text_light[a - text_x]; //scroll light table down + } + s++; + if (s >= text_x) + s = 0; + } + + //============================ + //for (a = (text_x * text_y) + text_x - 1; a > text_x; a--) { + // text_light[a] = text_light[a - text_x]; //scroll light table down + //} + memmove ((void *)(&text_light[0] + text_x), (void *)&text_light, (text_x * text_y) - 1); + + //for (a = 0; a < text_x; a++) + // text_light[a] = 253; //clear top line (in light table) + memset ((void *)&text_light, 253, text_x); + + s = 0; + for (a = polovina; a < (text_x * text_y); a++) { + if (text_light[a] == 255) + text_light[s] = text_light[s + text_x] >> 1; //make black bugs in top line + + s++; + + if (s >= text_x) + s = 0; + } + } +} + +void make_change (double dCurrentTime) +{ + unsigned int r = random () & 0xFFFF; + + r >>= 3; + if (r < (text_x * text_y)) + text[r] += 133; //random bugs + + r = random () & 0xFFFF; + r >>= 7; + if (r < text_x) + if (text_light[r] != 0) + text_light[r] = 255; //white bugs + + scroll (dCurrentTime); +} + +void hack_reshape (xstuff_t * XStuff) +{ + glViewport (0, 0, XStuff->windowWidth, XStuff->windowHeight); + + glMatrixMode (GL_PROJECTION); + glLoadIdentity (); + //gluPerspective (45.0f, (GLfloat) XStuff->windowWidth / (GLfloat) XStuff->windowHeight, 0.1f, 150.0f); + glFrustum(-_text_x, _text_x, -_text_y, _text_y, -Z_Off - Z_Depth, -Z_Off); + + glMatrixMode (GL_MODELVIEW); +} + +void load_texture () +{ + long a; + + LOAD_TEXTURE (font, cfont, cfont_compressedsize, cfont_size) + + for (a = 0; a < 131072; a++) { + if ((a >> 9) & 2) + font[a] = font[a]; + else + font[a] = font[a] >> 1; + } +} + +void make_text () +{ + long a; + unsigned int r; + + for (a = 0; a < (text_x * text_y); a++) { + r = random () & 0xFFFF; + text[a] = r; + } + + for (a = 0; a < text_x; a++) + speed[a] = random () & 1; +} + +void ourBuildTextures () +{ + GLenum gluerr; + + glBindTexture (GL_TEXTURE_2D, 1); + + if ((gluerr = gluBuild2DMipmaps (GL_TEXTURE_2D, GL_RGBA8, 512, 256, GL_GREEN, GL_UNSIGNED_BYTE, (void *)font))) { + fprintf (stderr, "GLULib%s\n", gluErrorString (gluerr)); + exit (-1); + } + + glBindTexture (GL_TEXTURE_2D, 2); + + if ((gluerr = gluBuild2DMipmaps (GL_TEXTURE_2D, GL_RGBA8, 512, 256, GL_LUMINANCE, GL_UNSIGNED_BYTE, (void *)font))) { + fprintf (stderr, "GLULib%s\n", gluErrorString (gluerr)); + exit (-1); + } + + FREE_TEXTURE (font) + + glBindTexture (GL_TEXTURE_2D, 3); + + if ((gluerr = gluBuild2DMipmaps (GL_TEXTURE_2D, GL_RGBA8, 4, 4, GL_LUMINANCE, GL_UNSIGNED_BYTE, (void *)flare))) { + fprintf (stderr, "GLULib%s\n", gluErrorString (gluerr)); + exit (-1); + } + + // Some pretty standard settings for wrapping and filtering. + glTexParameterf (GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT); + glTexParameterf (GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT); + + // We start with GL_DECAL mode. + glTexEnvf (GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_DECAL); +} + +void hack_init (xstuff_t * XStuff) // Called right after the window is created, and OpenGL is initialized. +{ + load_texture (); + make_text (); + + MagickCore::MagickWandGenesis (); + + ourBuildTextures (); + + // Buffers for drawing the bulk of the characters using arrays + pts = (float *)malloc(text_y * text_x * 3 * 4 * sizeof(float)); + texcoords = (float *)malloc(text_y * text_x * 2 * 4 * sizeof(float)); + colors = (unsigned char *)malloc(text_y * text_x * 4 * 4 * sizeof(unsigned char)); + + glVertexPointer(3, GL_FLOAT, 0, pts); + glEnableClientState(GL_VERTEX_ARRAY); + + glColorPointer(4, GL_UNSIGNED_BYTE, 0, colors); + glEnableClientState(GL_COLOR_ARRAY); + + glTexCoordPointer(2, GL_FLOAT, 0, texcoords); + glEnableClientState(GL_TEXTURE_COORD_ARRAY); + + // Color to clear color buffer to. + glClearColor (0.0f, 0.0f, 0.0f, 0.0f); + + // Depth to clear depth buffer to; type of test. + glClearDepth (1.0); + glDepthFunc (GL_LESS); + + // Enables Smooth Color Shading; try GL_FLAT for (lack of) fun. + glShadeModel (GL_SMOOTH); + + // Set up a light, turn it on. + glLightfv (GL_LIGHT1, GL_POSITION, Light_Position); + glLightfv (GL_LIGHT1, GL_AMBIENT, Light_Ambient); + glLightfv (GL_LIGHT1, GL_DIFFUSE, Light_Diffuse); + glEnable (GL_LIGHT1); + + // A handy trick -- have surface material mirror the color. + glColorMaterial (GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE); + glEnable (GL_COLOR_MATERIAL); + + hack_reshape (XStuff); +} + +void hack_cleanup (xstuff_t * XStuff) +{ + if (imageLoadingThread) { + // Try acquiring the lock first to make sure the thread is asleep and signallable. Otherwise the signal will miss the other thread and the pthread_join will hang. + pthread_mutex_lock(next_pic_mutex); + + exiting = 1; + pthread_cond_signal(next_pic_cond); + + pthread_mutex_unlock(next_pic_mutex); + + pthread_join(*imageLoadingThread, NULL); + } + + free(pts); + free(texcoords); + free(colors); +} + +void hack_draw (xstuff_t * XStuff, double currentTime, float frameTime) +{ + glBindTexture (GL_TEXTURE_2D, 1); + glEnable (GL_BLEND); + glEnable (GL_TEXTURE_2D); + + glDisable (GL_LIGHTING); + glBlendFunc (GL_SRC_ALPHA, GL_ONE); + glDisable (GL_DEPTH_TEST); + glTexParameterf (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST_MIPMAP_LINEAR); + glTexParameterf (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); + glMatrixMode (GL_MODELVIEW); + glLoadIdentity (); + glTranslatef (0.0f, 0.0f, Z_Off); + + // Clear the color and depth buffers. + glClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); + + if (exit_mode) + exit_angle += 0.08; + else + exit_angle /= 1.1; + + if (texture_add > 0) + texture_add /= 1.05; + + glRotatef (exit_angle, r1, r2, r3); + + // OK, let's start drawing our planer quads. + draw_text (); + + glBindTexture (GL_TEXTURE_2D, 2); + glBegin (GL_QUADS); + draw_illuminatedtext (); + glEnd (); + + glBindTexture (GL_TEXTURE_2D, 3); + glBegin (GL_QUADS); + draw_flares (); + glEnd (); + + make_change (currentTime); + + glLoadIdentity (); + glMatrixMode (GL_PROJECTION); +} + +void hack_handle_opts (int argc, char **argv) +{ + while (1) { + int c; + +#ifdef HAVE_GETOPT_H + static struct option long_options[] = { + {"help", 0, 0, 'h'}, + DRIVER_OPTIONS_LONG + {"images", 1, 0, 'i'}, + {"scene_interval", 1, 0, 's'}, + {"matrix_interval", 1, 0, 'm'}, + {"matrix_width", 1, 0, 'X'}, + {"matrix_height", 1, 0, 'Y'}, + {"contrast", 1, 0, 'c'}, + {0, 0, 0, 0} + }; + + c = getopt_long (argc, argv, DRIVER_OPTIONS_SHORT "hs:m:X:Y:c:i:", long_options, NULL); +#else + c = getopt (argc, argv, DRIVER_OPTIONS_SHORT "hs:m:X:Y:c:i:"); +#endif + if (c == -1) + break; + + switch (c) { + DRIVER_OPTIONS_CASES case 'h':printf ("%s:" +#ifndef HAVE_GETOPT_H + " Not built with GNU getopt.h, long options *NOT* enabled." +#endif + "\n" DRIVER_OPTIONS_HELP "\t--images/-i \n\t--scene_interval/-s \n" "\t--matrix_interval/-m \n" + "\t--matrix_width/-X \n" "\t--matrix_height/-Y \n" "\t--contrast/-c \n", argv[0]); + + exit (1); + + case 'i': + { + struct stat fileStat; + + if (!stat(optarg, (struct stat *)&fileStat)) { + if (S_ISDIR(fileStat.st_mode)) { + imageDir = opendir (optarg); + if (imageDir) { + dirName = (char *)malloc (strlen (optarg) + 1); + strcpy (dirName, optarg); + } else { + fprintf (stderr, "--images: Could not open %s\n", optarg); + } + } else { + fprintf(stderr, "--images: %s is not a directory\n", optarg); + } + } else { + fprintf(stderr, "--images: Could not stat %s\n", optarg); + } + } + + break; + case 's': + cycleScene = strtol_minmaxdef (optarg, 10, 0, 120, 1, 5, "--scene_interval: "); + break; + case 'm': + cycleMatrix = strtol_minmaxdef (optarg, 10, 3, 120, 1, 5, "--matrix_interval: "); + break; + case 'X': + text_x = strtol_minmaxdef (optarg, 10, 40, MAX_TEXT_X, 1, 90, "--matrix_width: "); + break; + case 'Y': + text_y = strtol_minmaxdef (optarg, 10, 30, MAX_TEXT_Y, 1, 70, "--matrix_height: "); + break; + case 'c': + contrast = strtol_minmaxdef (optarg, 10, 0, 100, 1, 75, "--contrast: ") / 100.0f; + break; + } + } + +#ifdef HAVE_IMAGEMAGICK + // If contrast is unset, set it to 0.75 for external images, 1 for internal. + if (contrast == -1) { + if (dirName) + contrast = 0.75; + else + contrast = 1; + } +#else + // If contrast is unset, set it to 1. + if (contrast == -1) + contrast = 1; + + if (cycleScene > 0) { + if ((text_x != 90) || (text_y != 70)) { + printf("%s: Not built with ImageMagick, can not scale images. Resetting matrix resolution to 90x70.\n", argv[0]); + + text_x = 90; + text_y = 70; + } + } +#endif +} +