* Merged caca_show_cursor() and caca_hide_cursor() into caca_set_mouse() so
that we have one function less.
* Fixed coding style.
* Removed FUCKING TABS. ____.------.___
_______.----'`` ``` `` ``` ``-.
_.--' ` ```` ` ` ` ``` `` `` ``.
_.-' ' ` `` ``` `` ` `' `. _
.-'' ` H A H A H A `' M A I S \/.)
. . .-' / ` ` ` `` ||
|`-.(``-. ` ` ` ' ` ` ``` |\
`. '\```\ `` ` V I E U X ' ' `` `-`` -|\\
`/''````) `` ` - - ````` ' '.' |\_)
|`'_._` ``` ''` P O R C . . ```` /
// @) \ ` `` ''' . ``` '/
/''''' | ` \).`.'-. ''' _ _ .`` ` '/
.''''- `-'`. . // )-- '/,,',,' ,,,,''__,._`' ' /
.' ` `- ` ' .' / ' /,;;;, ,___.---' \ '' / \
(`. .'` __',`''''.--'/ ' /'-----' | ' / ))
`'-'/ `'''_.---' \;;|- '/ ,,, | ''|`- |
`'--'---' |;| / ,,,,;;;;;;;;;;,,,,, |-' /` |
|;|-'| ,;;;;;;;;;;;;;;;; ;;;/ /|`'''
''',,,''',,,,,,,,,,,,,,,' /,,'''
''''
pirms 18 gadiem * Merged caca_show_cursor() and caca_hide_cursor() into caca_set_mouse() so
that we have one function less.
* Fixed coding style.
* Removed FUCKING TABS. ____.------.___
_______.----'`` ``` `` ``` ``-.
_.--' ` ```` ` ` ` ``` `` `` ``.
_.-' ' ` `` ``` `` ` `' `. _
.-'' ` H A H A H A `' M A I S \/.)
. . .-' / ` ` ` `` ||
|`-.(``-. ` ` ` ' ` ` ``` |\
`. '\```\ `` ` V I E U X ' ' `` `-`` -|\\
`/''````) `` ` - - ````` ' '.' |\_)
|`'_._` ``` ''` P O R C . . ```` /
// @) \ ` `` ''' . ``` '/
/''''' | ` \).`.'-. ''' _ _ .`` ` '/
.''''- `-'`. . // )-- '/,,',,' ,,,,''__,._`' ' /
.' ` `- ` ' .' / ' /,;;;, ,___.---' \ '' / \
(`. .'` __',`''''.--'/ ' /'-----' | ' / ))
`'-'/ `'''_.---' \;;|- '/ ,,, | ''|`- |
`'--'---' |;| / ,,,,;;;;;;;;;;,,,,, |-' /` |
|;|-'| ,;;;;;;;;;;;;;;;; ;;;/ /|`'''
''',,,''',,,,,,,,,,,,,,,' /,,'''
''''
pirms 18 gadiem |
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460461462463464465466467468469470471472473474475476477478479480481482483484485486487488489490491492493494495496497498499500501502503504505506507508509510511512513514515516 |
- /*
- * libcaca Colour ASCII-Art library
- * Copyright (c) 2002-2006 Sam Hocevar <sam@zoy.org>
- * All Rights Reserved
- *
- * $Id$
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the Do What The Fuck You Want To
- * Public License, Version 2, as published by Sam Hocevar. See
- * http://sam.zoy.org/wtfpl/COPYING for more details.
- */
-
- /*
- * This file contains the libcaca OpenGL input and output driver
- */
-
- #include "config.h"
-
- #if defined(USE_GL)
-
- #ifdef HAVE_OPENGL_GL_H
- # include <OpenGL/gl.h>
- # include <GLUT/glut.h>
- #else
- # include <GL/gl.h>
- # include <GL/glut.h>
- # include <GL/freeglut_ext.h>
- #endif
-
- #include <string.h>
- #include <stdlib.h>
- #include <stdio.h>
-
- #include "caca.h"
- #include "caca_internals.h"
- #include "cucul.h"
- #include "cucul_internals.h"
-
- /*
- * Global variables
- */
-
- static caca_display_t *gl_d; /* FIXME: we ought to get rid of this */
-
- /*
- * Local functions
- */
- static void gl_handle_keyboard(unsigned char, int, int);
- static void gl_handle_special_key(int, int, int);
- static void gl_handle_reshape(int, int);
- static void gl_handle_mouse(int, int, int, int);
- static void gl_handle_mouse_motion(int, int);
- #ifdef HAVE_GLUTCLOSEFUNC
- static void gl_handle_close(void);
- #endif
- static void _display(void);
-
- struct driver_private
- {
- int window;
- unsigned int width, height;
- unsigned int new_width, new_height;
- float font_width, font_height;
- float incx, incy;
- int id[128 - 32];
- unsigned char close;
- unsigned char bit;
- unsigned char mouse_changed, mouse_clicked;
- unsigned int mouse_x, mouse_y;
- unsigned int mouse_button, mouse_state;
-
- unsigned char key;
- int special_key;
-
- float sw, sh;
- };
-
- static int gl_init_graphics(caca_display_t *dp)
- {
- char *empty_texture;
- char const *geometry;
- char *argv[2] = { "", NULL };
- unsigned int width = 0, height = 0;
- int argc = 1;
- int i;
-
- dp->drv.p = malloc(sizeof(struct driver_private));
-
- gl_d = dp;
-
- #if defined(HAVE_GETENV)
- geometry = getenv("CACA_GEOMETRY");
- if(geometry && *geometry)
- sscanf(geometry, "%ux%u", &width, &height);
- #endif
-
- if(width && height)
- _cucul_set_canvas_size(dp->cv, width, height);
-
- dp->drv.p->font_width = 9;
- dp->drv.p->font_height = 15;
-
- dp->drv.p->width = dp->cv->width * dp->drv.p->font_width;
- dp->drv.p->height = dp->cv->height * dp->drv.p->font_height;
-
- #ifdef HAVE_GLUTCLOSEFUNC
- dp->drv.p->close = 0;
- #endif
- dp->drv.p->bit = 0;
-
- dp->drv.p->mouse_changed = dp->drv.p->mouse_clicked = 0;
- dp->drv.p->mouse_button = dp->drv.p->mouse_state = 0;
-
- dp->drv.p->key = 0;
- dp->drv.p->special_key = 0;
-
- dp->drv.p->sw = 9.0f / 16.0f;
- dp->drv.p->sh = 15.0f / 16.0f;
-
- glutInit(&argc, argv);
-
- glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE);
- glutInitWindowSize(dp->drv.p->width, dp->drv.p->height);
- dp->drv.p->window = glutCreateWindow("caca for GL");
-
- gluOrtho2D(0, dp->drv.p->width, dp->drv.p->height, 0);
-
- glDisable(GL_CULL_FACE);
- glDisable(GL_DEPTH_TEST);
-
- glutKeyboardFunc(gl_handle_keyboard);
- glutSpecialFunc(gl_handle_special_key);
- glutReshapeFunc(gl_handle_reshape);
- glutDisplayFunc(_display);
-
- #ifdef HAVE_GLUTCLOSEFUNC
- glutCloseFunc(gl_handle_close);
- #endif
-
- glutMouseFunc(gl_handle_mouse);
- glutMotionFunc(gl_handle_mouse_motion);
- glutPassiveMotionFunc(gl_handle_mouse_motion);
-
- glLoadIdentity();
-
- glMatrixMode(GL_PROJECTION);
- glPushMatrix();
- glLoadIdentity();
- gluOrtho2D(0, dp->drv.p->width, dp->drv.p->height, 0);
-
- glMatrixMode(GL_MODELVIEW);
-
- glClear(GL_COLOR_BUFFER_BIT);
-
- empty_texture = malloc(16 * 16 * 4);
- if(empty_texture == NULL)
- return -1;
-
- memset(empty_texture, 0xff, 16 * 16 * 4);
- glEnable(GL_TEXTURE_2D);
-
- for(i = 32; i < 128; i++)
- {
- glGenTextures(1, (GLuint*)&dp->drv.p->id[i - 32]);
- glBindTexture(GL_TEXTURE_2D, dp->drv.p->id[i - 32]);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
- glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB8,
- 16, 16, 0, GL_RGB, GL_UNSIGNED_BYTE, empty_texture);
- }
-
- for(i = 32; i < 128; i++)
- {
- glDisable(GL_TEXTURE_2D);
- glClear(GL_COLOR_BUFFER_BIT);
-
- glColor3f(1, 1, 1);
- glRasterPos2f(0, 15);
- glutBitmapCharacter(GLUT_BITMAP_9_BY_15, i);
-
- glEnable(GL_TEXTURE_2D);
- glBindTexture(GL_TEXTURE_2D, dp->drv.p->id[i - 32]);
- glCopyTexImage2D(GL_TEXTURE_2D, 0, GL_RGB,
- 0, dp->drv.p->height - 16, 16, 16, 0);
-
- #ifdef HAVE_GLUTCHECKLOOP
- glutCheckLoop();
- #else
- glutMainLoopEvent();
- #endif
- glutPostRedisplay();
- }
-
- return 0;
- }
-
- static int gl_end_graphics(caca_display_t *dp)
- {
- glutDestroyWindow(dp->drv.p->window);
- free(dp->drv.p);
- return 0;
- }
-
- static int gl_set_display_title(caca_display_t *dp, char const *title)
- {
- glutSetWindowTitle(title);
- return 0;
- }
-
- static unsigned int gl_get_display_width(caca_display_t *dp)
- {
- return dp->drv.p->width;
- }
-
- static unsigned int gl_get_display_height(caca_display_t *dp)
- {
- return dp->drv.p->height;
- }
-
- static void gl_display(caca_display_t *dp)
- {
- unsigned int x, y, line;
-
- glClear(GL_COLOR_BUFFER_BIT);
-
- line = 0;
- for(y = 0; y < dp->drv.p->height; y += dp->drv.p->font_height)
- {
- uint32_t *attr = dp->cv->attr + line * dp->cv->width;
-
- for(x = 0; x < dp->drv.p->width; x += dp->drv.p->font_width)
- {
- uint16_t bg = _cucul_argb32_to_rgb12bg(*attr++);
- glDisable(GL_TEXTURE_2D);
- glColor3b(((bg & 0xf00) >> 8) * 8,
- ((bg & 0x0f0) >> 4) * 8,
- (bg & 0x00f) * 8);
- glBegin(GL_QUADS);
- glVertex2f(x, y);
- glVertex2f(x + dp->drv.p->font_width, y);
- glVertex2f(x + dp->drv.p->font_width,
- y + dp->drv.p->font_height);
- glVertex2f(x, y + dp->drv.p->font_height);
- glEnd();
- }
-
- line++;
- }
-
- /* 2nd pass, avoids changing render state too much */
- glEnable(GL_BLEND);
- glEnable(GL_TEXTURE_2D);
- glBlendFunc(GL_ONE, GL_ONE);
-
- line = 0;
- for(y = 0; y < dp->drv.p->height; y += dp->drv.p->font_height)
- {
- uint32_t *attr = dp->cv->attr + line * dp->cv->width;
- uint32_t *chars = dp->cv->chars + line * dp->cv->width;
-
- for(x = 0; x < dp->drv.p->width; x += dp->drv.p->font_width)
- {
- uint32_t cv = *chars++;
-
- if(cv > 0x00000020 && cv < 0x00000080)
- {
- uint16_t fg = _cucul_argb32_to_rgb12fg(*attr);
- glBindTexture(GL_TEXTURE_2D, dp->drv.p->id[cv - 32]);
- glColor3b(((fg & 0xf00) >> 8) * 8,
- ((fg & 0x0f0) >> 4) * 8,
- (fg & 0x00f) * 8);
- glBegin(GL_QUADS);
- glTexCoord2f(0, dp->drv.p->sh);
- glVertex2f(x, y);
- glTexCoord2f(dp->drv.p->sw, dp->drv.p->sh);
- glVertex2f(x + dp->drv.p->font_width, y);
- glTexCoord2f(dp->drv.p->sw, 0);
- glVertex2f(x + dp->drv.p->font_width,
- y + dp->drv.p->font_height);
- glTexCoord2f(0, 0);
- glVertex2f(x, y + dp->drv.p->font_height);
- glEnd();
- }
-
- attr++;
- }
- line++;
- }
- glDisable(GL_BLEND);
- glDisable(GL_TEXTURE_2D);
-
- #ifdef HAVE_GLUTCHECKLOOP
- glutCheckLoop();
- #else
- glutMainLoopEvent();
- #endif
- glutSwapBuffers();
- glutPostRedisplay();
- }
-
- static void gl_handle_resize(caca_display_t *dp)
- {
- dp->drv.p->width = dp->drv.p->new_width;
- dp->drv.p->height = dp->drv.p->new_height;
-
- glMatrixMode(GL_PROJECTION);
- glPushMatrix();
- glLoadIdentity();
-
- glViewport(0, 0, dp->drv.p->width, dp->drv.p->height);
- gluOrtho2D(0, dp->drv.p->width, dp->drv.p->height, 0);
- glMatrixMode(GL_MODELVIEW);
- }
-
- static int gl_get_event(caca_display_t *dp, caca_event_t *ev)
- {
- #ifdef HAVE_GLUTCHECKLOOP
- glutCheckLoop();
- #else
- glutMainLoopEvent();
- #endif
-
- #ifdef HAVE_GLUTCLOSEFUNC
- if(dp->drv.p->close)
- {
- dp->drv.p->close = 0;
- ev->type = CACA_EVENT_QUIT;
- return 1;
- }
- #endif
-
- if(dp->resize.resized)
- {
- ev->type = CACA_EVENT_RESIZE;
- ev->data.resize.w = dp->cv->width;
- ev->data.resize.h = dp->cv->height;
- return 1;
- }
-
- if(dp->drv.p->mouse_changed)
- {
- ev->type = CACA_EVENT_MOUSE_MOTION;
- ev->data.mouse.x = dp->mouse.x;
- ev->data.mouse.y = dp->mouse.y;
- dp->drv.p->mouse_changed = 0;
-
- if(dp->drv.p->mouse_clicked)
- {
- _push_event(dp, ev);
- ev->type = CACA_EVENT_MOUSE_PRESS;
- ev->data.mouse.button = dp->drv.p->mouse_button;
- dp->drv.p->mouse_clicked = 0;
- }
-
- return 1;
- }
-
- if(dp->drv.p->key != 0)
- {
- ev->type = CACA_EVENT_KEY_PRESS;
- ev->data.key.ch = dp->drv.p->key;
- ev->data.key.ucs4 = (uint32_t)dp->drv.p->key;
- ev->data.key.utf8[0] = dp->drv.p->key;
- ev->data.key.utf8[1] = '\0';
- dp->drv.p->key = 0;
- return 1;
- }
-
- if(dp->drv.p->special_key != 0)
- {
- switch(dp->drv.p->special_key)
- {
- case GLUT_KEY_F1 : ev->data.key.ch = CACA_KEY_F1; break;
- case GLUT_KEY_F2 : ev->data.key.ch = CACA_KEY_F2; break;
- case GLUT_KEY_F3 : ev->data.key.ch = CACA_KEY_F3; break;
- case GLUT_KEY_F4 : ev->data.key.ch = CACA_KEY_F4; break;
- case GLUT_KEY_F5 : ev->data.key.ch = CACA_KEY_F5; break;
- case GLUT_KEY_F6 : ev->data.key.ch = CACA_KEY_F6; break;
- case GLUT_KEY_F7 : ev->data.key.ch = CACA_KEY_F7; break;
- case GLUT_KEY_F8 : ev->data.key.ch = CACA_KEY_F8; break;
- case GLUT_KEY_F9 : ev->data.key.ch = CACA_KEY_F9; break;
- case GLUT_KEY_F10: ev->data.key.ch = CACA_KEY_F10; break;
- case GLUT_KEY_F11: ev->data.key.ch = CACA_KEY_F11; break;
- case GLUT_KEY_F12: ev->data.key.ch = CACA_KEY_F12; break;
- case GLUT_KEY_LEFT : ev->data.key.ch = CACA_KEY_LEFT; break;
- case GLUT_KEY_RIGHT: ev->data.key.ch = CACA_KEY_RIGHT; break;
- case GLUT_KEY_UP : ev->data.key.ch = CACA_KEY_UP; break;
- case GLUT_KEY_DOWN : ev->data.key.ch = CACA_KEY_DOWN; break;
- default: ev->type = CACA_EVENT_NONE; return 0;
- }
-
- ev->type = CACA_EVENT_KEY_PRESS;
- ev->data.key.ucs4 = 0;
- ev->data.key.utf8[0] = '\0';
-
- dp->drv.p->special_key = 0;
- return 1;
- }
-
- ev->type = CACA_EVENT_NONE;
- return 0;
- }
-
-
- static void gl_set_mouse(caca_display_t *dp, int flag)
- {
- if(flag)
- glutSetCursor(GLUT_CURSOR_RIGHT_ARROW);
- else
- glutSetCursor(GLUT_CURSOR_NONE);
- }
-
- /*
- * XXX: following functions are local
- */
-
- static void gl_handle_keyboard(unsigned char key, int x, int y)
- {
- caca_display_t *dp = gl_d;
-
- dp->drv.p->key = key;
- }
-
- static void gl_handle_special_key(int key, int x, int y)
- {
- caca_display_t *dp = gl_d;
-
- dp->drv.p->special_key = key;
- }
-
- static void gl_handle_reshape(int w, int h)
- {
- caca_display_t *dp = gl_d;
-
- if(dp->drv.p->bit) /* Do not handle reshaping at the first time */
- {
- dp->drv.p->new_width = w;
- dp->drv.p->new_height = h;
-
- dp->resize.w = w / dp->drv.p->font_width;
- dp->resize.h = (h / dp->drv.p->font_height) + 1;
-
- dp->resize.resized = 1;
- }
- else
- dp->drv.p->bit = 1;
- }
-
- static void gl_handle_mouse(int button, int state, int x, int y)
- {
- caca_display_t *dp = gl_d;
-
- dp->drv.p->mouse_clicked = 1;
- dp->drv.p->mouse_button = button;
- dp->drv.p->mouse_state = state;
- dp->drv.p->mouse_x = x / dp->drv.p->font_width;
- dp->drv.p->mouse_y = y / dp->drv.p->font_height;
- dp->mouse.x = dp->drv.p->mouse_x;
- dp->mouse.y = dp->drv.p->mouse_y;
- dp->drv.p->mouse_changed = 1;
- }
-
- static void gl_handle_mouse_motion(int x, int y)
- {
- caca_display_t *dp = gl_d;
- dp->drv.p->mouse_x = x / dp->drv.p->font_width;
- dp->drv.p->mouse_y = y / dp->drv.p->font_height;
- dp->mouse.x = dp->drv.p->mouse_x;
- dp->mouse.y = dp->drv.p->mouse_y;
- dp->drv.p->mouse_changed = 1;
- }
-
- #ifdef HAVE_GLUTCLOSEFUNC
- static void gl_handle_close(void)
- {
- caca_display_t *dp = gl_d;
- dp->drv.p->close = 1;
- }
- #endif
-
- static void _display(void)
- {
- caca_display_t *dp = gl_d;
- gl_display(dp);
- }
-
-
- /*
- * Driver initialisation
- */
-
- int gl_install(caca_display_t *dp)
- {
- #if defined(HAVE_GETENV) && defined(GLUT_XLIB_IMPLEMENTATION)
- if(!getenv("DISPLAY") || !*(getenv("DISPLAY")))
- return -1;
- #endif
-
- dp->drv.driver = CACA_DRIVER_GL;
-
- dp->drv.init_graphics = gl_init_graphics;
- dp->drv.end_graphics = gl_end_graphics;
- dp->drv.set_display_title = gl_set_display_title;
- dp->drv.get_display_width = gl_get_display_width;
- dp->drv.get_display_height = gl_get_display_height;
- dp->drv.display = gl_display;
- dp->drv.handle_resize = gl_handle_resize;
- dp->drv.get_event = gl_get_event;
- dp->drv.set_mouse = gl_set_mouse;
-
- return 0;
- }
-
- #endif /* USE_GL */
-
|