From 366ae2b89b4049072c90b23057f0b69be2d5d84a Mon Sep 17 00:00:00 2001 From: John Tsiombikas Date: Sat, 24 Nov 2018 00:39:25 +0200 Subject: [PATCH 1/1] initial commit --- COPYING | 674 ++++++++++++++++++++++++++++++++++++++++++++++++ README.md | 27 ++ erbrend/Makefile | 13 + erbrend/src/main.c | 7 + erebus/Makefile | 14 + erebus/src/console.c | 262 +++++++++++++++++++ erebus/src/console.h | 49 ++++ erebus/src/main.c | 660 +++++++++++++++++++++++++++++++++++++++++++++++ erebus/src/opengl.h | 14 + liberebus/src/erebus.h | 76 ++++++ 10 files changed, 1796 insertions(+) create mode 100644 COPYING create mode 100644 README.md create mode 100644 erbrend/Makefile create mode 100644 erbrend/src/main.c create mode 100644 erebus/Makefile create mode 100644 erebus/src/console.c create mode 100644 erebus/src/console.h create mode 100644 erebus/src/main.c create mode 100644 erebus/src/opengl.h create mode 100644 liberebus/src/erebus.h diff --git a/COPYING b/COPYING new file mode 100644 index 0000000..f288702 --- /dev/null +++ b/COPYING @@ -0,0 +1,674 @@ + GNU GENERAL PUBLIC LICENSE + Version 3, 29 June 2007 + + Copyright (C) 2007 Free Software Foundation, Inc. + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The GNU General Public License is a free, copyleft license for +software and other kinds of works. + + The licenses for most software and other practical works are designed +to take away your freedom to share and change the works. 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If not, see . + +Also add information on how to contact you by electronic and paper mail. + + If the program does terminal interaction, make it output a short +notice like this when it starts in an interactive mode: + + Copyright (C) + This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. + This is free software, and you are welcome to redistribute it + under certain conditions; type `show c' for details. + +The hypothetical commands `show w' and `show c' should show the appropriate +parts of the General Public License. Of course, your program's commands +might be different; for a GUI interface, you would use an "about box". + + You should also get your employer (if you work as a programmer) or school, +if any, to sign a "copyright disclaimer" for the program, if necessary. +For more information on this, and how to apply and follow the GNU GPL, see +. + + The GNU General Public License does not permit incorporating your program +into proprietary programs. If your program is a subroutine library, you +may consider it more useful to permit linking proprietary applications with +the library. If this is what you want to do, use the GNU Lesser General +Public License instead of this License. But first, please read +. diff --git a/README.md b/README.md new file mode 100644 index 0000000..c9a370d --- /dev/null +++ b/README.md @@ -0,0 +1,27 @@ +Erebus Renderer +=============== + +#![Erebus](http://nuclear.mutantstargoat.com/sw/erebus/img/erebus_banner_med.jpg) + +About +----- +Erebus might one day become a photorealistic renderer. + +The core of erebus is in the form of a C library called `liberebus`, to make it +simple to create multiple different front-ends for it. The `erebus` program +itself merely links with `liberebus` and provides an interactive user interface +to the renderer. An additional front-end called `erbrend` is provided as a +simpler and more portable non-interactive command-line front-end, that +can be useful for in headless environments, or for automating long render jobs. + + * Web site: http://nuclear.mutantstargoat.com/sw/erebus + * Git repository: https://github.com/jtsiomb/erebus + +License +------- +Copyright (C) 2018 John Tsiombikas + +Erebus is free software. Feel free to use, modify, and/or redistribute it under +the terms of the GNU General Public License version 3, or at your option any +later version published by the Free Software Foundation. See COPYING for +details. diff --git a/erbrend/Makefile b/erbrend/Makefile new file mode 100644 index 0000000..40dc318 --- /dev/null +++ b/erbrend/Makefile @@ -0,0 +1,13 @@ +src = $(wildcard src/*.c) +obj = $(src:.c=.o) +bin = erbrend + +CFLAGS = -pedantic -Wall -g +LDFLAGS = -L../liberebus -rpath=../liberebus -lerebus + +$(bin): $(obj) + $(CC) -o $@ $(obj) $(LDFLAGS) + +.PHONY: clean +clean: + rm -f $(obj) $(bin) diff --git a/erbrend/src/main.c b/erbrend/src/main.c new file mode 100644 index 0000000..6b0ee6a --- /dev/null +++ b/erbrend/src/main.c @@ -0,0 +1,7 @@ +#include +#include "erebus.h" + +int main(int argc, char **argv) +{ + return 0; /* TODO */ +} diff --git a/erebus/Makefile b/erebus/Makefile new file mode 100644 index 0000000..d81bda8 --- /dev/null +++ b/erebus/Makefile @@ -0,0 +1,14 @@ +src = $(wildcard src/*.c) +obj = $(src:.c=.o) + +bin = erebus + +CFLAGS = -pedantic -Wall -g -I../liberebus/src +LDFLAGS = -L../liberebus -lGL -lglut -lerebus + +$(bin): $(obj) + $(CC) -o $@ $(obj) $(LDFLAGS) + +.PHONY: clean +clean: + rm -f $(obj) $(bin) diff --git a/erebus/src/console.c b/erebus/src/console.c new file mode 100644 index 0000000..9a9253e --- /dev/null +++ b/erebus/src/console.c @@ -0,0 +1,262 @@ +#include +#include +#include +#include +#include +#include +#include "console.h" + +static void set_cursor(int x); + +static int visible; +static int nlines = 16; +static int ncolumns = 80; + +#define INPUTQ_SIZE 64 +static int inpq_front, inpq_back; +static int keybuf[INPUTQ_SIZE]; + +static const char *prompt = "> "; +static char input[512]; /* current input line */ +static int input_size; +static int cursor; +static int input_win; /* first char to show in the input "window" */ + +/* input history */ +static char **hist; +static int max_hist_lines = 64; +static int hist_next; +static int cur_hist_item = -1; + +/* console output */ +static char **output; +static int max_output_lines = 128; +static int output_next; +static int echo = 1; + +static void (*cmd_handler)(const char*, void*); +static void *cmd_handler_cls; + +static int font_size; +static struct dtx_font *font; + + +void con_set_font(struct dtx_font *fnt, int sz) +{ + font = fnt; + font_size = sz; +} + +int con_set_history_size(int hsz) +{ + char **tmp; + + if(hsz < 0) return -1; + + if(hsz < hist_next) { + memmove(hist, hist + hist_next - hsz, hsz); + hist_next = 0; + } + + if(!(tmp = realloc(hist, hsz * sizeof *hist))) { + fprintf(stderr, "failed to change console history to %d: %s\n", hsz, strerror(errno)); + return -1; + } + hist = tmp; + max_hist_lines = hsz; + return 0; +} + +int con_set_output_buffer_size(int hsz) +{ + char **tmp; + + if(hsz < 0) return -1; + + if(hsz < output_next) { + memmove(output, output + output_next - hsz, hsz); + output_next = 0; + } + + if(!(tmp = realloc(output, hsz * sizeof *output))) { + fprintf(stderr, "failed to change console outputory to %d: %s\n", hsz, strerror(errno)); + return -1; + } + output = tmp; + max_output_lines = hsz; + return 0; +} + +void con_set_command_func(void (*func)(const char*, void*), void *cls) +{ + cmd_handler = func; + cmd_handler_cls = cls; +} + +void con_set_echo(int e) +{ + echo = e; +} + +int con_get_echo(void) +{ + return echo; +} + +void con_show(void) +{ + visible = 1; +} + +void con_hide(void) +{ + visible = 0; +} + +void con_set_visible(int v) +{ + visible = v; +} + +int con_is_visible(void) +{ + return visible; +} + +void con_set_size(int lines, int columns) +{ + nlines = lines; + ncolumns = columns; +} + +int con_get_size_lines(void) +{ + return nlines; +} + +int con_get_size_columns(void) +{ + return ncolumns; +} + +int con_update(void) +{ + int must_redraw = 0; + char *str; + + while(inpq_front != inpq_back) { + int c = keybuf[inpq_front]; + inpq_front = (inpq_front + 1) % INPUTQ_SIZE; + + switch(c) { + case '\n': + case '\r': + if(echo) { + con_puts(input); + con_putchar('\n'); + } + if(input_size > 0 && cmd_handler) { + cmd_handler(input, cmd_handler_cls); + } + + /* append the input string into the history buffer */ + if(!(str = malloc(strlen(input) + 1))) { + fprintf(stderr, "failed to add input to history buffer: %s\n", strerror(errno)); + continue; + } + if(hist[hist_next]) free(hist[hist_next]); + hist[hist_next] = str; + hist_next = (hist_next + 1) & (max_hist_lines - 1); + cur_hist_item = -1; + + set_cursor(0); + must_redraw = 1; + break; + + case '\t': + /* TODO completion */ + break; + + case '\b': + if(input_size > 0) { + if(cursor == input_size) { + input_size--; + set_cursor(cursor - 1); + must_redraw = 1; + } + } else if(cursor > 0) { + memmove(input + cursor, input + cursor + 1, input_size - cursor - 1); + input_size--; + set_cursor(cursor - 1); + must_redraw = 1; + } + break; + + case CON_KEY_UP: + break; /* TODO */ + case CON_KEY_DOWN: + break; /* TODO */ + + case CON_KEY_LEFT: + if(cursor > 0) { + set_cursor(cursor - 1); + must_redraw = 1; + } + break; + + case CON_KEY_RIGHT: + if(cursor < input_size) { + set_cursor(cursor + 1); + must_redraw = 1; + } + break; + + case CON_KEY_HOME: + set_cursor(0); + must_redraw = 1; + break; + + case CON_KEY_END: + set_cursor(input_size); + must_redraw = 1; + break; + + case CON_KEY_PGUP: + case CON_KEY_PGDOWN: + /* TODO scroll output buffer */ + break; + + default: + if((c < 256 && isprint(c))) { + if(cursor == input_size) { + input[input_size++] = c; + } else { + memmove(input + cursor + 1, input + cursor, input_size - cursor); + input[cursor] = c; + } + set_cursor(cursor + 1); + must_redraw = 1; + } + } + } + return must_redraw; +} + +static void set_cursor(int x) +{ + int max_chars; + + if(x < 0 || x > input_size) { + return; + } + cursor = x; + + max_chars = ncolumns - strlen(prompt) - 1; + + if(cursor < input_win) { + input_win = cursor; + } else if(cursor > input_win + max_chars) { + input_win = cursor - max_chars; + if(input_win < 0) input_win = 0; + } +} diff --git a/erebus/src/console.h b/erebus/src/console.h new file mode 100644 index 0000000..29e30ab --- /dev/null +++ b/erebus/src/console.h @@ -0,0 +1,49 @@ +#ifndef CONSOLE_H_ +#define CONSOLE_H_ + +#include + +enum { + CON_KEY_LEFT = 256, + CON_KEY_RIGHT, + CON_KEY_UP, + CON_KEY_DOWN, + CON_KEY_INS, + CON_KEY_DEL, + CON_KEY_HOME, + CON_KEY_END, + CON_KEY_PGUP, + CON_KEY_PGDOWN +}; + +void con_set_font(struct dtx_font *font, int sz); +int con_set_history_size(int hsz); +int con_set_output_buffer_size(int sz); +void con_set_command_func(void (*func)(const char*, void*), void *cls); + +void con_set_echo(int echo); +int con_get_echo(void); + +void con_show(void); +void con_hide(void); +void con_set_visible(int v); +int con_is_visible(void); + +void con_set_size(int lines, int columns); +int con_get_size_lines(void); +int con_get_size_columns(void); + +/* update returns true if what it did makes a redraw necessary */ +int con_update(void); +void con_draw(void); +void con_debug(void); + +void con_input_key(int key); /* send a keystroke to the console */ + +void con_putchar(char c); +void con_puts(const char *str); +void con_printf(const char *fmt, ...); + + + +#endif /* CONSOLE_H_ */ diff --git a/erebus/src/main.c b/erebus/src/main.c new file mode 100644 index 0000000..9c85b48 --- /dev/null +++ b/erebus/src/main.c @@ -0,0 +1,660 @@ +#include +#include +#include +#include +#include +#include +#include +#include +#include "opengl.h" +#include +#include "erebus.h" +#include "console.h" + +static int init(); +static void cleanup(); +static void begin_frame(long tm); +static void end_frame(); +static void resize_rtarget(int xsz, int ysz); +static void update_rect(int x, int y, int xsz, int ysz, float *pixels); +static void idle(); +static void display(); +static void display_statusbar(const struct erb_render_status *status); +static void save_image(const char *fname); +static void reshape(int x, int y); +static void keyb(unsigned char key, int x, int y); +static void keyb_up(unsigned char key, int x, int y); +static void skeyb(int key, int x, int y); +static void mouse(int bn, int st, int x, int y); +static void motion(int x, int y); +static int next_pow2(int x); +static void sighandler(int s); +static int parse_args(int argc, char **argv); +static void con_parse(const char *line, void *cls); + +static int win_width, win_height, width, height, rtex_width, rtex_height; +static unsigned int rtex; + +static int opt_samples = -1; +static int opt_iter = -1; +static int opt_threads = -1; +static float opt_imgscale = 2.0f; + +static struct erebus *erb; +static int render_pending; +static int show_status = 1; +static unsigned long start_time; + +static struct input_file { + char *fname; + struct input_file *next; +} *input_files, *input_files_tail; + +#define FONTSZ 22 +static struct dtx_font *font; + +int main(int argc, char **argv) +{ + glutInitWindowSize(1024, 600); + glutInit(&argc, argv); + + if(parse_args(argc, argv) == -1) { + return 1; + } + + glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE); + glutCreateWindow("erebus OpenGL frontend"); + + glutDisplayFunc(display); + glutReshapeFunc(reshape); + glutKeyboardFunc(keyb); + glutKeyboardUpFunc(keyb_up); + glutSpecialFunc(skeyb); + glutMouseFunc(mouse); + glutMotionFunc(motion); + + if(init() == -1) { + return 1; + } + atexit(cleanup); + signal(SIGINT, sighandler); + signal(SIGSEGV, sighandler); + signal(SIGILL, sighandler); + signal(SIGTERM, sighandler); + signal(SIGFPE, sighandler); + + glutMainLoop(); + return 0; +} + +static int init() +{ + struct input_file *infile; + + width = glutGet(GLUT_WINDOW_WIDTH) / opt_imgscale; + height = glutGet(GLUT_WINDOW_HEIGHT) / opt_imgscale; + + if(!(font = dtx_open_font_glyphmap("data/serif.glyphmap"))) { + fprintf(stderr, "warning: failed to load font!\n"); + } + + struct dtx_font *confont = dtx_open_font_glyphmap("data/mono.glyphmap"); + if(confont) { + con_set_font(confont, 14); + } else { + con_set_font(font, FONTSZ); + } + con_set_command_func(con_parse, 0); + + if(!(erb = erb_init())) { + return -1; + } + erb_setopti(erb, ERB_OPT_WIDTH, width); + erb_setopti(erb, ERB_OPT_HEIGHT, height); + + if(opt_samples != -1) { + erb_setopti(erb, ERB_OPT_MAX_SAMPLES, opt_samples); + } + if(opt_iter != -1) { + erb_setopti(erb, ERB_OPT_MAX_ITER, opt_iter); + } + if(opt_threads != -1) { + erb_setopti(erb, ERB_OPT_NUM_THREADS, opt_threads); + } + + infile = input_files; + while(infile) { + printf("loading scene file: %s\n", infile->fname); + if(erb_load_scene(erb, infile->fname) == -1) { + return -1; + } + infile = infile->next; + } + + if(input_files) { + begin_frame(0); + } + + glEnable(GL_TEXTURE_2D); + return 0; +} + +static void cleanup() +{ + save_image("final.png"); + erb_destroy(erb); +} + +static void begin_frame(long tm) +{ + printf("rendering frame (t=%ld) ...\n", tm); + + render_pending = 1; + glutIdleFunc(idle); + erb_begin_frame(erb, 0); + + start_time = glutGet(GLUT_ELAPSED_TIME); +} + +static void end_frame() +{ + if(!render_pending) return; + + long full_msec = glutGet(GLUT_ELAPSED_TIME) - start_time; + long msec, sec, min, hr, days; + + msec = full_msec; + con_printf("done in "); + if((sec = msec / 1000) > 0) { + msec %= 1000; + if((min = sec / 60) > 0) { + sec %= 60; + if((hr = min / 60) > 0) { + min %= 60; + if((days = hr / 24) > 0) { + hr %= 24; + con_printf("%ld days ", days); + } + con_printf("%ld hours ", hr); + } + con_printf("%ld min ", min); + } + con_printf("%ld sec ", sec); + } + con_printf("%ld ms (%ld total msec)\n", msec, full_msec); + + render_pending = 0; + glutIdleFunc(0); +} + +static void resize_rtarget(int xsz, int ysz) +{ + static unsigned char *defpix; + int i, j; + unsigned char *ptr; + + if(render_pending) { + erb_end_frame(erb); + } + + win_width = xsz; + win_height = ysz; + + width = xsz / opt_imgscale; + height = ysz / opt_imgscale; + + if(width > rtex_width || height > rtex_height) { + rtex_width = next_pow2(width); + rtex_height = next_pow2(height); + + printf("resizing framebuffer texture: %dx%d\n", rtex_width, rtex_height); + + if(!rtex) { + glGenTextures(1, &rtex); + } + + free(defpix); + if(!(defpix = malloc(rtex_width * rtex_height * 4))) { + fprintf(stderr, "failed to allocate %dx%d framebuffer\n", rtex_width, rtex_height); + abort(); + } + ptr = defpix; + for(i=0; i> 4) & 1) == ((j >> 4) & 1) ? 1 : 0; + int val = chess ? 64 : 48; + + *ptr++ = val; + *ptr++ = val; + *ptr++ = val; + *ptr++ = 255; + } + } + + glBindTexture(GL_TEXTURE_2D, rtex); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); + glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA16F_ARB, rtex_width, rtex_height, 0, GL_RGBA, GL_UNSIGNED_BYTE, defpix); + } + + if(render_pending) { + begin_frame(0); + } +} + +static void update_rect(int x, int y, int xsz, int ysz, float *pixels) +{ + glBindTexture(GL_TEXTURE_2D, rtex); + glTexSubImage2D(GL_TEXTURE_2D, 0, x, y, xsz, ysz, GL_RGBA, GL_FLOAT, pixels); +} + +static void idle() +{ + glutPostRedisplay(); +} + +static void display() +{ + static struct erb_render_status status; + float maxu, maxv; + + if(render_pending) { + if(erb_render(erb, 64) == 0) { + end_frame(); + } + update_rect(0, 0, width, height, erb_get_framebuffer(erb)); + erb_get_status(erb, &status); + } + + maxu = (float)width / (float)rtex_width; + maxv = (float)height / (float)rtex_height; + + glEnable(GL_TEXTURE_2D); + glBindTexture(GL_TEXTURE_2D, rtex); + + glBegin(GL_QUADS); + glColor4f(1, 1, 1, 1); + glTexCoord2f(0, maxv); glVertex2f(-1, -1); + glTexCoord2f(maxu, maxv); glVertex2f(1, -1); + glTexCoord2f(maxu, 0); glVertex2f(1, 1); + glTexCoord2f(0, 0); glVertex2f(-1, 1); + glEnd(); + + // draw the console + con_update(); + con_draw(); + + // draw progress information etc... + if(show_status) { + display_statusbar(&status); + } + + glutSwapBuffers(); + assert(glGetError() == GL_NO_ERROR); +} + +static void display_statusbar(const struct erb_render_status *status) +{ + int show_progress = opt_samples > 0; + int bar_height, prog_width; + + if(!font) return; + dtx_use_font(font, FONTSZ); + + glDisable(GL_TEXTURE_2D); + + glMatrixMode(GL_PROJECTION); + glPushMatrix(); + glLoadIdentity(); + glOrtho(0, win_width, 0, win_height, -1, 1); + + glMatrixMode(GL_MODELVIEW); + glPushMatrix(); + glLoadIdentity(); + + struct dtx_box bbox; + dtx_glyph_box('Q', &bbox); + + // draw progress/status bar + bar_height = bbox.height + 4; + prog_width = show_progress ? status->progress_percent * win_width / 100 : 0; + + glBegin(GL_QUADS); + glColor4f(0, 0, 0, 1); + glVertex2f(prog_width, 0); + glVertex2f(win_width, 0); + glVertex2f(win_width, bar_height); + glVertex2f(prog_width, bar_height); + + glColor4f(0.25, 0, 0, 1); + glVertex2f(0, 0); + glVertex2f(prog_width, 0); + glVertex2f(prog_width, bar_height); + glVertex2f(0, bar_height); + glEnd(); + + // draw the text + glTranslatef(bbox.x + 2, bbox.y + 2, 0); + + glColor4f(1, 1, 1, 1); + + if(opt_samples > 0) { + dtx_printf("samples: %ld / %ld", status->samples, status->max_samples); + + glLoadIdentity(); + glTranslatef(win_width - dtx_string_width("progress: 100%") - 2, bbox.y + 2, 0); + dtx_printf("progress: %ld%%", status->progress_percent); + } else { + dtx_printf("samples: %ld", status->samples); + } + + { + // samples/sec display + static unsigned long paths_per_sec, prev_msec, prev_paths; + + unsigned long msec = glutGet(GLUT_ELAPSED_TIME) - start_time; + unsigned long dt = msec - prev_msec; + + if(dt >= 1500) { // average over 1.5 seconds + unsigned long paths = status->samples * width * height; + if(prev_msec > 0 && prev_paths <= paths) { // check valid interval (not a restart or whatever) + paths_per_sec = 1000 * (paths - prev_paths) / dt; + } + prev_msec = msec; + prev_paths = paths; + } + + glLoadIdentity(); + glTranslatef((win_width - dtx_string_width("paths/s: 999999")) / 2, bbox.y + 2, 0); + if(paths_per_sec) { + dtx_printf("paths/s: %ld", paths_per_sec); + } else { + dtx_printf("paths/s: ???"); + } + } + + glPopMatrix(); + glMatrixMode(GL_PROJECTION); + glPopMatrix(); +} + +static void save_image(const char *fname) +{ + float *fb = erb_get_framebuffer(erb); + + if(img_save_pixels(fname ? fname : "output.png", fb, width, height, IMG_FMT_RGBAF) == -1) { + fprintf(stderr, "failed to save image\n"); + } +} + +static void reshape(int x, int y) +{ + glViewport(0, 0, x, y); + resize_rtarget(x, y); + + erb_setopti(erb, ERB_OPT_WIDTH, width); + erb_setopti(erb, ERB_OPT_HEIGHT, height); +} + +static void keyb(unsigned char key, int x, int y) +{ + switch(key) { + case 27: + if(con_is_visible()) { + con_hide(); + glutPostRedisplay(); + } else { + end_frame(); + exit(0); + } + break; + + case ' ': + if(!con_is_visible()) { + begin_frame(0); + } else { + con_input_key(' '); + glutPostRedisplay(); + } + break; + + case '`': + con_set_visible(!con_is_visible()); + glutPostRedisplay(); + break; + + case '~': + show_status = !show_status; + glutPostRedisplay(); + break; + + default: + // otherwise if the console is visible, let them through + if(con_is_visible()) { + con_input_key(key); + glutPostRedisplay(); + return; // don't pass anything to the erb input handler + } + } + + /* TODO handle input */ +} + +static void keyb_up(unsigned char key, int x, int y) +{ + /* TODO handle input */ +} + +static void skeyb(int key, int x, int y) +{ + if(key == GLUT_KEY_F12) { + printf("saving image...\n"); + save_image(0); + return; + } + + if(con_is_visible()) { + switch(key) { + case GLUT_KEY_F8: + con_debug(); + return; + + case GLUT_KEY_LEFT: + con_input_key(CON_KEY_LEFT); + break; + case GLUT_KEY_RIGHT: + con_input_key(CON_KEY_RIGHT); + break; + case GLUT_KEY_UP: + con_input_key(CON_KEY_UP); + break; + case GLUT_KEY_DOWN: + con_input_key(CON_KEY_DOWN); + break; + case GLUT_KEY_HOME: + con_input_key(CON_KEY_HOME); + break; + case GLUT_KEY_END: + con_input_key(CON_KEY_END); + break; + case GLUT_KEY_INSERT: + con_input_key(CON_KEY_INS); + break; + case GLUT_KEY_PAGE_UP: + con_input_key(CON_KEY_PGUP); + break; + case GLUT_KEY_PAGE_DOWN: + con_input_key(CON_KEY_PGDOWN); + break; + + default: + return; + } + glutPostRedisplay(); + } +} + +static void mouse(int bn, int st, int x, int y) +{ + /* TODO handle input */ +} + +static void motion(int x, int y) +{ + /* TODO handle input */ +} + +static int next_pow2(int x) +{ + int res = 2; + while(res < x) { + res <<= 1; + } + return res; +} + +static void sighandler(int s) +{ + exit(0); +} + +static int parse_args(int argc, char **argv) +{ + int i; + + for(i=1; ifname = argv[i]; + infile->next = 0; + + if(input_files_tail) { + input_files_tail->next = infile; + input_files_tail = infile; + } else { + input_files = input_files_tail = infile; + } + } + } + + return 0; +} + +static void con_parse(const char *line, void *cls) +{ + int len, i; + char *buf, *tok; + char *args[128]; + int argc = 0; + + if(!(len = strlen(line))) return; + + buf = alloca(len + 1); + memcpy(buf, line, len + 1); + + while((tok = strtok(buf, " \n\r\v\t"))) { + buf = 0; + args[argc++] = tok; + } + args[argc] = 0; + + if(!args[0]) return; + + if(strcmp(args[0], "exit") == 0 || strcmp(args[0], "quit") == 0) { + exit(0); + + } else if(strcmp(args[0], "clear") == 0) { + erb_clear(erb); + + } else if(strcmp(args[0], "stop") == 0) { + erb_end_frame(erb); + + } else if(strcmp(args[0], "render") == 0) { + long tm = 0; + if(args[1]) { + char *endp; + tm = strtol(args[1], &endp, 10); + if(endp == args[1]) { + con_printf("the argument to render must be a time value in milliseconds\n"); + return; + } + } + begin_frame(tm); + + } else if(strcmp(args[0], "samples") == 0) { + if(args[1] && (opt_samples = atoi(args[1]))) { + erb_setopti(erb, ERB_OPT_MAX_SAMPLES, opt_samples); + con_printf("max samples is now %d\n", opt_samples); + } else { + con_printf("invalid samples command: %s\n", line); + } + + } else if(strcmp(args[0], "load") == 0) { + for(i=1; i sets the maximum number of samples per pixel\n"); + con_printf("iter sets the maximum number of ray bounces\n"); + con_printf("load loads a scene file\n"); + con_printf("add adds another object to the scene. For valid object commands see test/scene\n"); + + } else { + con_printf("unrecognized command: %s\n", args[0]); + } +} diff --git a/erebus/src/opengl.h b/erebus/src/opengl.h new file mode 100644 index 0000000..6c45301 --- /dev/null +++ b/erebus/src/opengl.h @@ -0,0 +1,14 @@ +#ifndef OPENGL_H_ +#define OPENGL_H_ + +#ifdef WIN32 +#include +#endif + +#ifdef __APPLE__ +#include +#else +#include +#endif + +#endif /* OPENGL_H_ */ diff --git a/liberebus/src/erebus.h b/liberebus/src/erebus.h new file mode 100644 index 0000000..1a2b39f --- /dev/null +++ b/liberebus/src/erebus.h @@ -0,0 +1,76 @@ +/* +erebus - photorealistic renderer +Copyright (C) 2018 John Tsiombikas + +This program is free software: you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation, either version 3 of the License, or +(at your option) any later version. + +This program 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, see . +*/ +#ifndef LIBEREBUS_H_ +#define LIBEREBUS_H_ + +struct erebus; + +enum erb_option { + ERB_OPT_WIDTH, + ERB_OPT_HEIGHT, + ERB_OPT_MAX_ITER, + ERB_OPT_MAX_SAMPLES, + ERB_OPT_NUM_THREADS, + ERB_OPT_GAMMA, + + ERB_NUM_OPTIONS +}; + +struct erb_render_status { + long progress_percent; /* derived from the data below */ + long blocks, max_blocks; /* completed pixel blocks in current sample pass */ + long samples, max_samples; /* completed samples in current frame */ + long frames, max_frames; /* completed frames in multi-frame job */ +}; + +#ifdef __cplusplus +extern "C" { +#endif + +struct erebus *erb_init(void); +void erb_destroy(struct erebus *ctx); + +void erb_clear(struct erebus *ctx); + +void erb_setopti(struct erebus *ctx, enum erb_option opt, int val); +void erb_setoptf(struct erebus *ctx, enum erb_option opt, float val); +void erb_setoptfv(struct erebus *ctx, enum erb_option opt, float *vec); + +int erb_getopti(struct erebus *ctx, enum erb_option opt); +float erb_getoptf(struct erebus *ctx, enum erb_option opt); +float *erb_getoptfv(struct erebus *ctx, enum erb_option opt); + +float *erb_get_framebuffer(struct erebus *ctx); + +void erb_begin_frame(struct erebus *ctx, long ms); +void erb_end_frame(struct erebus *ctx); + +int erb_render(struct erebus *ctx, long timeout); +int erb_render_rect(struct erebus *ctx, int x, int y, int width, int height, long timeout); + +int erb_get_progress(struct erebus *ctx); +int erb_get_status(struct erebus *ctx, struct erb_render_status *stat); + +int erb_load_scene(struct erebus *ctx, const char *fname); +/*int erb_proc_cmd(struct erebus *ctx, const char *cmd);*/ + +#ifdef __cplusplus +} +#endif + +#endif /* LIBEREBUS_H_ */ -- 1.7.10.4