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/* Hello, Emacs, this is -*-C-*-
* $Id: vgagl.trm,v 1.23 2013/08/24 03:33:35 sfeam Exp $
*/
#if defined(USE_MOUSE)
/* GNUPLOT - vgagl.trm */
/*[
* Copyright 1993, 1998, 2004
*
* Permission to use, copy, and distribute this software and its
* documentation for any purpose with or without fee is hereby granted,
* provided that the above copyright notice appear in all copies and
* that both that copyright notice and this permission notice appear
* in supporting documentation.
*
* Permission to modify the software is granted, but not the right to
* distribute the complete modified source code. Modifications are to
* be distributed as patches to the released version. Permission to
* distribute binaries produced by compiling modified sources is granted,
* provided you
* 1. distribute the corresponding source modifications from the
* released version in the form of a patch file along with the binaries,
* 2. add special version identification to distinguish your version
* in addition to the base release version number,
* 3. provide your name and address as the primary contact for the
* support of your modified version, and
* 4. retain our contact information in regard to use of the base
* software.
* Permission to distribute the released version of the source code along
* with corresponding source modifications in the form of a patch file is
* granted with same provisions 2 through 4 for binary distributions.
*
* This software is provided "as is" without express or implied warranty
* to the extent permitted by applicable law.
]*/
/*
* This file is included by ../term.c.
*
* This terminal driver supports SVGA in the following modes:
*
* G1024x768x256,
* G800x600x256,
* G640x480x256,
* G320x200x256,
* G1280x1024x256,
* G1152x864x256,
* G1360x768x256,
* G1600x1200x256,
*
*
* AUTHOR
* Johannes Zellner <johannes@zellner.org>
* the code is based on the `linux' driver.
* The first version dated January 2000.
*/
/*
* Compile with -l3kit -lvgagl -lvga
*/
#define VGAGL_DEBUGGING
#ifdef TERM_REGISTER
register_term(vgagl)
#endif
#ifdef TERM_PROTO
#define VGAGL_VCHAR FNT5X9_VCHAR
#define VGAGL_HCHAR FNT5X9_HCHAR
#define VGAGL_VTIC 5
#define VGAGL_HTIC 5
#define VGAGL_XMAX 0 /* These two entries are just place holders. */
#define VGAGL_YMAX 0 /* The actual values will be filled in init. */
TERM_PUBLIC void VGAGL_options __PROTO((void));
TERM_PUBLIC int VGAGL_get_mode __PROTO((void));
TERM_PUBLIC void VGAGL_init __PROTO((void));
TERM_PUBLIC void VGAGL_reset __PROTO((void));
TERM_PUBLIC void VGAGL_text __PROTO((void));
TERM_PUBLIC void VGAGL_graphics __PROTO((void));
TERM_PUBLIC void VGAGL_linetype __PROTO((int linetype));
TERM_PUBLIC void VGAGL_move __PROTO((unsigned int x, unsigned int y));
TERM_PUBLIC void VGAGL_vector __PROTO((unsigned int x, unsigned int y));
TERM_PUBLIC int VGAGL_text_angle __PROTO((int ang));
TERM_PUBLIC void VGAGL_put_text_with_color __PROTO((unsigned int x, unsigned int y, const char* str, int color));
TERM_PUBLIC void VGAGL_put_text __PROTO((unsigned int x, unsigned int y, const char* str));
TERM_PUBLIC void VGAGL_suspend __PROTO((void));
TERM_PUBLIC void VGAGL_resume __PROTO((void));
void VGAGL_eventually_process_graphics_events __PROTO((void));
TERM_PUBLIC void VGAGL_draw_cursor __PROTO((int x, int y));
TERM_PUBLIC void VGAGL_set_ruler __PROTO((int, int));
TERM_PUBLIC void VGAGL_set_cursor __PROTO((int, int, int));
TERM_PUBLIC void VGAGL_put_tmptext __PROTO((int, const char str[]));
TERM_PUBLIC void VGAGL_set_clipboard __PROTO((const char[]));
TERM_PUBLIC void VGAGL_init_keytable __PROTO((void));
TERM_PUBLIC void VGAGL_xor_pixel __PROTO((int x, int y));
TERM_PUBLIC void VGAGL_xor_pixel_wrapper __PROTO((int x, int y, int color));
TERM_PUBLIC void VGAGL_hline_xor __PROTO((int x1, int x2, int y));
TERM_PUBLIC void VGAGL_vline_xor __PROTO((int y1, int y2, int x));
#if 0
TERM_PUBLIC void VGAGL_line_xor __PROTO((unsigned int x1, unsigned int y1, unsigned int x2, unsigned int y2));
#endif
TERM_PUBLIC void VGAGL_zoombox __PROTO((int x, int y));
TERM_PUBLIC void VGAGL_update_zoombox __PROTO((int x, int y));
TERM_PUBLIC void VGAGL_update_cursor __PROTO((int x, int y));
TERM_PUBLIC void VGAGL_signal_handler __PROTO((int signum));
TERM_PUBLIC void VGAGL_setpalettecolor __PROTO((int index, double red, double green, double blue));
TERM_PUBLIC void VGAGL_set_black_and_white __PROTO((void));
TERM_PUBLIC void VGAGL_set_line_colors __PROTO((void));
TERM_PUBLIC void VGAGL_putc __PROTO((unsigned int x, unsigned int y, int c, int ang, int color));
void (*VGAGL_old_handler) __PROTO((int));
#ifdef VGAGL_DEBUGGING
TERM_PUBLIC void VGAGL_write_dump_file __PROTO((void));
#endif
TERM_PUBLIC int VGAGL_make_palette __PROTO((t_sm_palette*));
TERM_PUBLIC void VGAGL_set_color __PROTO((t_colorspec *));
TERM_PUBLIC void VGAGL_filled_polygon __PROTO((int, gpiPoint*));
static const int VGAGL_8bit_colors = 240;
static const int pm3d_color_offset = 16; /* 0xff - VGAGL_8bit_colors + 1 */
static int VGAGL_pm3d_colors;
static int VGAGL_pm3d_colors_; /* VGAGL_pm3d_colors - 1 */
static t_sm_palette VGAGL_save_pal = {
-1, -1, -1, -1, -1, -1, -1, -1,
(rgb_color*) 0, -1, -1
};
static double VGAGL_gray = 0;
#ifdef VGAGL_ENABLE_TRUECOLOR
#define VGAGL_tri_colors 4096
static TBOOLEAN VGAGL_truecolor = FALSE;
static unsigned short VGAGL_line_cmap[0xf];
static unsigned short VGAGL_cmap[VGAGL_tri_colors];
#endif
#ifdef VGAGL_DEBUGGING
static char* VGAGL_dump_file = (char*) 0;
static unsigned char VGAGL_palette[0x100][3];
#endif
#endif /* TERM_PROTO */
#ifdef TERM_BODY
#include <signal.h>
#define _STRING_H_
/* according to the vga_waitevent() man page */
#include <sys/time.h>
#include <sys/types.h>
#include <unistd.h>
#include <vga.h>
#include <vgagl.h>
#include <3dkit.h>
#include <vgamouse.h>
#include <vgakeyboard.h>
#define VGA_FPRINTF(x) fprintf x
#define Y(y) (vgagl_lasty - y)
static TBOOLEAN VGAGL_processing_graphics_events = FALSE;
static TBOOLEAN VGAGL_interpolate = TRUE;
static GraphicsContext backscreen;
static GraphicsContext physicalscreen;
static int current_color = 7;
#ifdef SCANCODE_RIGHTWIN
# define KEYTABLE_SIZE (SCANCODE_RIGHTWIN + 1)
#else
# define KEYTABLE_SIZE (128) /* should be sufficient (joze) */
#endif
static int VGAGL_Keytable[KEYTABLE_SIZE];
static int VGAGL_modifier_mask = 0;
static int VGAGL_last_cursorx = -1;
static int VGAGL_last_cursory = -1;
static int VGAGL_cursorx;
static int VGAGL_cursory;
static int VGAGL_ruler_x = -1;
static int VGAGL_ruler_y = -1;
typedef struct VGAGL_zoom_t {
int startx;
int starty;
int currentx;
int currenty;
char xstr[2][0xff];
char ystr[2][0xff];
char current_xstr[2][0xff];
char current_ystr[2][0xff];
} VGAGL_zoom_t;
static VGAGL_zoom_t VGAGL_zoom = {
-1, -1, -1, -1,
{ "", "" },
{ "", "" },
{ "", "" },
{ "", "" }
};
static TBOOLEAN VGAGL_cursor_drawn = FALSE;
static unsigned char VGAGL_bg_red = 0x0;
static unsigned char VGAGL_bg_green = 0x0;
static unsigned char VGAGL_bg_blue = 0x0;
static unsigned char VGAGL_xor_red = 0xff;
static unsigned char VGAGL_xor_green = 0xff;
static unsigned char VGAGL_xor_blue = 0xff;
static TBOOLEAN VGAGL_need_update = TRUE;
static char VGAGL_savedstr[0xff] = "";
static int vgagl_vmode = -1; /* default mode */
static TBOOLEAN VGAGL_graphics_on = FALSE;
static vga_modeinfo *modeinfo;
static int VGAGL_startx, VGAGL_starty, vgagl_lasty, vgagl_lastx;
static int VGAGL_angle = 0;
void
VGAGL_init_keytable()
{
int i;
for (i = 0; i < KEYTABLE_SIZE; i++) {
VGAGL_Keytable[i] = -1;
}
VGAGL_Keytable[SCANCODE_1] = '1';
VGAGL_Keytable[SCANCODE_2] = '2';
VGAGL_Keytable[SCANCODE_3] = '3';
VGAGL_Keytable[SCANCODE_4] = '4';
VGAGL_Keytable[SCANCODE_5] = '5';
VGAGL_Keytable[SCANCODE_6] = '6';
VGAGL_Keytable[SCANCODE_7] = '7';
VGAGL_Keytable[SCANCODE_8] = '8';
VGAGL_Keytable[SCANCODE_9] = '9';
VGAGL_Keytable[SCANCODE_0] = '0';
VGAGL_Keytable[SCANCODE_A] = 'a';
VGAGL_Keytable[SCANCODE_B] = 'b';
VGAGL_Keytable[SCANCODE_C] = 'c';
VGAGL_Keytable[SCANCODE_D] = 'd';
VGAGL_Keytable[SCANCODE_E] = 'e';
VGAGL_Keytable[SCANCODE_F] = 'f';
VGAGL_Keytable[SCANCODE_G] = 'g';
VGAGL_Keytable[SCANCODE_H] = 'h';
VGAGL_Keytable[SCANCODE_I] = 'i';
VGAGL_Keytable[SCANCODE_J] = 'j';
VGAGL_Keytable[SCANCODE_K] = 'k';
VGAGL_Keytable[SCANCODE_L] = 'l';
VGAGL_Keytable[SCANCODE_M] = 'm';
VGAGL_Keytable[SCANCODE_N] = 'n';
VGAGL_Keytable[SCANCODE_O] = 'o';
VGAGL_Keytable[SCANCODE_P] = 'p';
VGAGL_Keytable[SCANCODE_Q] = 'q';
VGAGL_Keytable[SCANCODE_R] = 'r';
VGAGL_Keytable[SCANCODE_S] = 's';
VGAGL_Keytable[SCANCODE_T] = 't';
VGAGL_Keytable[SCANCODE_U] = 'u';
VGAGL_Keytable[SCANCODE_V] = 'v';
VGAGL_Keytable[SCANCODE_W] = 'w';
VGAGL_Keytable[SCANCODE_X] = 'x';
VGAGL_Keytable[SCANCODE_Y] = 'y';
VGAGL_Keytable[SCANCODE_Z] = 'z';
VGAGL_Keytable[SCANCODE_BRACKET_LEFT] = '[';
VGAGL_Keytable[SCANCODE_BRACKET_RIGHT] = ']';
VGAGL_Keytable[SCANCODE_MINUS] = '-';
VGAGL_Keytable[SCANCODE_EQUAL] = '=';
VGAGL_Keytable[SCANCODE_SEMICOLON] = ';';
VGAGL_Keytable[SCANCODE_APOSTROPHE] = '\'';
VGAGL_Keytable[SCANCODE_GRAVE] = '^';
VGAGL_Keytable[SCANCODE_BACKSLASH] = '\\';
VGAGL_Keytable[SCANCODE_COMMA] = ',';
VGAGL_Keytable[SCANCODE_PERIOD] = '.';
VGAGL_Keytable[SCANCODE_SLASH] = '/';
VGAGL_Keytable[SCANCODE_SPACE] = ' ';
VGAGL_Keytable[SCANCODE_BACKSPACE] = GP_BackSpace;
VGAGL_Keytable[SCANCODE_TAB] = GP_Tab;
VGAGL_Keytable[SCANCODE_ENTER] = GP_Return;
VGAGL_Keytable[SCANCODE_ESCAPE] = GP_Escape;
/* VGAGL_Keytable[SCANCODE_LEFTCONTROL] */
/* VGAGL_Keytable[SCANCODE_RIGHTCONTROL] */
/* VGAGL_Keytable[SCANCODE_CONTROL] */
/* VGAGL_Keytable[SCANCODE_LEFTSHIFT] */
/* VGAGL_Keytable[SCANCODE_RIGHTSHIFT] */
/* VGAGL_Keytable[SCANCODE_LEFTALT] */
/* VGAGL_Keytable[SCANCODE_RIGHTALT] */
/* VGAGL_Keytable[SCANCODE_CAPSLOCK] */
VGAGL_Keytable[SCANCODE_NUMLOCK] = GP_Scroll_Lock;
/* VGAGL_Keytable[SCANCODE_SCROLLLOCK] = GP_Numlock; */
VGAGL_Keytable[SCANCODE_KEYPADMULTIPLY] = GP_KP_Multiply;
VGAGL_Keytable[SCANCODE_F1] = GP_F1;
VGAGL_Keytable[SCANCODE_F2] = GP_F2;
VGAGL_Keytable[SCANCODE_F3] = GP_F3;
VGAGL_Keytable[SCANCODE_F4] = GP_F4;
VGAGL_Keytable[SCANCODE_F5] = GP_F5;
VGAGL_Keytable[SCANCODE_F6] = GP_F6;
VGAGL_Keytable[SCANCODE_F7] = GP_F7;
VGAGL_Keytable[SCANCODE_F8] = GP_F8;
VGAGL_Keytable[SCANCODE_F9] = GP_F9;
VGAGL_Keytable[SCANCODE_F10] = GP_F10;
VGAGL_Keytable[SCANCODE_F11] = GP_F11;
VGAGL_Keytable[SCANCODE_F12] = GP_F12;
VGAGL_Keytable[SCANCODE_KEYPAD0] = GP_KP_0;
VGAGL_Keytable[SCANCODE_KEYPAD1] = GP_KP_1;
VGAGL_Keytable[SCANCODE_KEYPAD2] = GP_KP_2;
VGAGL_Keytable[SCANCODE_KEYPAD3] = GP_KP_3;
VGAGL_Keytable[SCANCODE_KEYPAD4] = GP_KP_4;
VGAGL_Keytable[SCANCODE_KEYPAD5] = GP_KP_5;
VGAGL_Keytable[SCANCODE_KEYPAD6] = GP_KP_6;
VGAGL_Keytable[SCANCODE_KEYPAD7] = GP_KP_7;
VGAGL_Keytable[SCANCODE_KEYPAD8] = GP_KP_8;
VGAGL_Keytable[SCANCODE_KEYPAD9] = GP_KP_9;
/* KEYPAD */
VGAGL_Keytable[SCANCODE_KEYPADMINUS] = GP_KP_Subtract;
VGAGL_Keytable[SCANCODE_KEYPADPLUS] = GP_KP_Add;
VGAGL_Keytable[SCANCODE_KEYPADPERIOD] = GP_KP_Delete;
VGAGL_Keytable[SCANCODE_KEYPADENTER] = GP_KP_Enter;
VGAGL_Keytable[SCANCODE_KEYPADDIVIDE] = GP_KP_Divide;
VGAGL_Keytable[SCANCODE_CURSORUPLEFT] = GP_KP_Home;
VGAGL_Keytable[SCANCODE_CURSORUP] = GP_KP_Up;
VGAGL_Keytable[SCANCODE_CURSORUPRIGHT] = GP_KP_Page_Up;
VGAGL_Keytable[SCANCODE_CURSORLEFT] = GP_KP_Left;
VGAGL_Keytable[SCANCODE_CURSORRIGHT] = GP_KP_Right;
VGAGL_Keytable[SCANCODE_CURSORDOWNLEFT] = GP_KP_End;
VGAGL_Keytable[SCANCODE_CURSORDOWN] = GP_KP_Down;
VGAGL_Keytable[SCANCODE_CURSORDOWNRIGHT] = GP_KP_Page_Down;
VGAGL_Keytable[SCANCODE_LESS] = GP_KP_Begin;
#if 0
VGAGL_Keytable[SCANCODE_PRINTSCREEN] = GP_Begin;
VGAGL_Keytable[SCANCODE_BREAK] = GP_Begin;
VGAGL_Keytable[SCANCODE_BREAK_ALTERNATIVE] = GP_Begin;
#endif
/* 3 * 2 block (usually above arrow keys) */
VGAGL_Keytable[SCANCODE_INSERT] = GP_Insert;
VGAGL_Keytable[SCANCODE_HOME] = GP_Home;
VGAGL_Keytable[SCANCODE_PAGEUP] = GP_PageUp;
VGAGL_Keytable[SCANCODE_REMOVE] = GP_Delete;
VGAGL_Keytable[SCANCODE_END] = GP_End;
VGAGL_Keytable[SCANCODE_PAGEDOWN] = GP_PageDown;
/* arrow keys */
VGAGL_Keytable[SCANCODE_CURSORBLOCKUP] = GP_Up;
VGAGL_Keytable[SCANCODE_CURSORBLOCKLEFT] = GP_Left;
VGAGL_Keytable[SCANCODE_CURSORBLOCKRIGHT] = GP_Right;
VGAGL_Keytable[SCANCODE_CURSORBLOCKDOWN] = GP_Down;
/* VGAGL_Keytable[SCANCODE_RIGHTWIN] */
/* VGAGL_Keytable[SCANCODE_LEFTWIN] */
}
enum {
VGAGL_INVALID = -1,
VGAGL_BACKGROUND = 1,
VGAGL_UNIFORM,
VGAGL_INTERPOLATE,
VGAGL_DUMP
};
static struct gen_table VGAGL_opts[] = {
{ "ba$ckground", VGAGL_BACKGROUND },
{ "bg", VGAGL_BACKGROUND },
{ "un$iform", VGAGL_UNIFORM },
{ "in$terpolate", VGAGL_INTERPOLATE },
#ifdef VGAGL_DEBUGGING
{ "dump", VGAGL_DUMP },
#endif
{ NULL, VGAGL_INVALID }
};
/* parse driver optinos. This is done when the
* user types `set term vgagl [options ...]'. */
TERM_PUBLIC
void VGAGL_options()
{
if (!LINUX_graphics_allowed) {
int_error(NO_CARET, "vgagl terminal driver not available");
return;
}
#ifdef VGAGL_DEBUGGING
#if 0
if (VGAGL_dump_file)
free(VGAGL_dump_file);
VGAGL_dump_file = (char*) 0;
#endif
#endif
if (END_OF_COMMAND) {
/* defaults */
vgagl_vmode = -1; /* get default mode */
VGAGL_bg_red = 0;
VGAGL_bg_green = 0;
VGAGL_bg_blue = 0;
VGAGL_interpolate = TRUE;
}
while (!END_OF_COMMAND) {
switch (lookup_table(VGAGL_opts, c_token)) {
case VGAGL_BACKGROUND:
{
struct value a;
int i, c[3];
++c_token;
for (i = 0; i < 3; i++) {
if (END_OF_COMMAND) {
break;
}
c[i] = (int)real(const_express(&a));
if (c[i] < 0 || c[i] > 255) {
fprintf(stderr, "color ranges from 0 to 255\n");
return;
}
}
if (!i) {
fprintf(stderr, "background requires arguments\n");
} else if (i < 3) {
c[1] = c[0];
c[2] = c[0];
}
VGAGL_bg_red = c[0];
VGAGL_bg_green = c[1];
VGAGL_bg_blue = c[2];
}
break;
case VGAGL_UNIFORM:
VGAGL_interpolate = FALSE;
++c_token;
break;
case VGAGL_INTERPOLATE:
VGAGL_interpolate = TRUE;
++c_token;
break;
#ifdef VGAGL_DEBUGGING
case VGAGL_DUMP:
/* since this is not documented it won't hurt too much to leave it in. */
++c_token;
if (!((VGAGL_dump_file = try_to_get_string())))
int_error(NO_CARET, "expecting string value");
break;
#endif
default:
{
/* VGA MODE */
char x[0x40];
int imode;
copy_str(x, c_token, 0x3f);
imode = vga_getmodenumber(x);
if (-1 != imode) {
if (vga_hasmode(imode)) {
vgagl_vmode = imode;
} else {
fprintf(stderr, "mode %s not available\n",
vga_getmodename(imode));
}
}
c_token++;
}
if (VGAGL_graphics_on) {
VGAGL_processing_graphics_events = FALSE;
VGAGL_reset();
}
break;
}
}
if (VGAGL_graphics_on) {
VGAGL_set_black_and_white();
}
VGAGL_get_mode(); /* check availability of mode */
sprintf(term_options, "%s bg %d %d %d %s",
vga_getmodename(vgagl_vmode),
VGAGL_bg_red, VGAGL_bg_green, VGAGL_bg_blue,
TRUE == VGAGL_interpolate ? "interpolate" : "uniform");
}
void
VGAGL_setpalettecolor(int index, double red, double green, double blue)
{
#ifdef VGAGL_DEBUGGING
assert(index >= 0 && index < 0x100);
assert(red >= 0 && red <= 1);
assert(green >= 0 && green <= 1);
assert(blue >= 0 && blue <= 1);
VGAGL_palette[index][0] = (unsigned char) floor(red * 255.999);
VGAGL_palette[index][1] = (unsigned char) floor(green * 255.999);
VGAGL_palette[index][2] = (unsigned char) floor(blue * 255.999);
#endif
gl_setpalettecolor(index, red * 63.999, green * 63.999, blue * 63.999);
}
/* set the background color (default is black) and choose
* the primary foreground and xor colors appropriately */
TERM_PUBLIC void
VGAGL_set_black_and_white()
{
/* background */
#ifdef VGAGL_ENABLE_TRUECOLOR
switch (VGAGL_truecolor) {
case TRUE:
VGAGL_line_cmap[0] = gl_rgbcolor(VGAGL_bg_red, VGAGL_bg_green, VGAGL_bg_blue);
break;
default:
#endif
VGAGL_setpalettecolor(0,
(double) VGAGL_bg_red / (double) 0xff,
(double) VGAGL_bg_green / (double) 0xff,
(double) VGAGL_bg_blue / (double) 0xff);
#ifdef VGAGL_ENABLE_TRUECOLOR
}
#endif
if (VGAGL_bg_red + VGAGL_bg_green + VGAGL_bg_blue > 0x180) {
/* light background */
#ifdef VGAGL_ENABLE_TRUECOLOR
switch (VGAGL_truecolor) {
case TRUE:
VGAGL_line_cmap[1] = gl_rgbcolor(0x00, 0x00, 0x00);
break;
default:
#endif
VGAGL_setpalettecolor(1, 0, 0, 0); /* black */
#ifdef VGAGL_ENABLE_TRUECOLOR
}
#endif
VGAGL_xor_red = 0xa0;
VGAGL_xor_green = 0xa0;
VGAGL_xor_blue = 0xa0;
/* TODO need to allocate a colormap entry for the xor color ? */
#if 0
VGAGL_xor_red = ~VGAGL_bg_red;
VGAGL_xor_green = ~VGAGL_bg_green;
VGAGL_xor_blue = ~VGAGL_bg_blue;
fprintf(stderr, "(VGAGL_set_black_and_white) VGAGL_xor_red = %d\n", VGAGL_xor_red);
fprintf(stderr, "(VGAGL_set_black_and_white) VGAGL_xor_green = %d\n", VGAGL_xor_green);
fprintf(stderr, "(VGAGL_set_black_and_white) VGAGL_xor_blue = %d\n", VGAGL_xor_blue);
#endif
} else {
/* dark background */
#ifdef VGAGL_ENABLE_TRUECOLOR
switch (VGAGL_truecolor) {
case TRUE:
VGAGL_line_cmap[1] = gl_rgbcolor(0xff, 0xff, 0xff);
break;
default:
#endif
VGAGL_setpalettecolor(1, 1, 1, 1); /* white */
#ifdef VGAGL_ENABLE_TRUECOLOR
}
#endif
VGAGL_xor_red = 0xff;
VGAGL_xor_green = 0xff;
VGAGL_xor_blue = 0xff;
/* TODO need to allocate a colormap entry for the xor color ? */
}
}
/* set up line colors */
TERM_PUBLIC void
VGAGL_set_line_colors()
{
gl_setrgbpalette();
VGAGL_set_black_and_white();
#ifdef VGAGL_ENABLE_TRUECOLOR
switch (VGAGL_truecolor) {
case TRUE:
VGAGL_line_cmap[2] = gl_rgbcolor(0x80, 0x80, 0x80); /* gray */
VGAGL_line_cmap[3] = gl_rgbcolor(0x00, 0xff, 0x00); /* green */
VGAGL_line_cmap[4] = gl_rgbcolor(0x00, 0xff, 0xff); /* cyan */
VGAGL_line_cmap[5] = gl_rgbcolor(0xff, 0x00, 0x00); /* red */
VGAGL_line_cmap[6] = gl_rgbcolor(0xff, 0x00, 0xff); /* magenta */
VGAGL_line_cmap[7] = gl_rgbcolor(0x00, 0x00, 0xff); /* blue */
VGAGL_line_cmap[8] = gl_rgbcolor(0xff, 0xff, 0x00); /* yellow */
VGAGL_line_cmap[9] = gl_rgbcolor(0xff, 0x80, 0x80); /* light red */
VGAGL_line_cmap[10] = gl_rgbcolor(0xff, 0xff, 0xff); /* white */
VGAGL_line_cmap[11] = gl_rgbcolor(0xff, 0x80, 0xff); /* light magenta */
VGAGL_line_cmap[12] = gl_rgbcolor(0x80, 0xff, 0x80); /* light green */
VGAGL_line_cmap[13] = gl_rgbcolor(0x80, 0xff, 0xff); /* light cyan */
VGAGL_line_cmap[14] = gl_rgbcolor(0x80, 0x80, 0xff); /* light blue */
break;
default:
#endif
VGAGL_setpalettecolor(2, 0.5, 0.5, 0.5); /* gray */
VGAGL_setpalettecolor(3, 0.0, 1.0, 0.0); /* green */
VGAGL_setpalettecolor(4, 0.0, 1.0, 1.0); /* cyan */
VGAGL_setpalettecolor(5, 1.0, 0.0, 0.0); /* red */
VGAGL_setpalettecolor(6, 1.0, 0.0, 1.0); /* magenta */
VGAGL_setpalettecolor(7, 0.0, 0.0, 1.0); /* blue */
VGAGL_setpalettecolor(8, 1.0, 1.0, 0.0); /* yellow */
VGAGL_setpalettecolor(9, 1.0, 0.5, 0.5); /* light red */
VGAGL_setpalettecolor(10, 1.0, 1.0, 1.0); /* white */
VGAGL_setpalettecolor(11, 1.0, 0.5, 1.0); /* light magenta */
VGAGL_setpalettecolor(12, 0.5, 1.0, 0.5); /* light green */
VGAGL_setpalettecolor(13, 0.5, 1.0, 1.0); /* light cyan */
VGAGL_setpalettecolor(14, 0.5, 0.5, 1.0); /* light blue */
#ifdef VGAGL_ENABLE_TRUECOLOR
}
#endif
}
TERM_PUBLIC int
VGAGL_get_mode()
{
int *iptr;
static int default_modes[] = {
0, /* to be filled with the user defined mode */
0, /* to be filled with the default mode */
G1024x768x256, /* hopefully available on all modern graphics boards */
G800x600x256,
G640x480x256,
G320x200x256,
G1280x1024x256,
#ifdef G1152x864x256
G1152x864x256,
#endif
#ifdef G1360x768x256
G1360x768x256,
#endif
#ifdef G1600x1200x256
G1600x1200x256,
#endif
TEXT
};
if (VGAGL_graphics_on) {
return 1; /* success ??? */
}
/* the user supplied mode will be checked first */
default_modes[0] = vgagl_vmode;
/* get the default mode from SVGALIB_DEFAULT_MODE, if available */
default_modes[1] = vga_getdefaultmode();
for (iptr = default_modes; TEXT != *iptr; iptr++) {
if (-1 != *iptr && vga_hasmode(*iptr)) {
vgagl_vmode = *iptr;
break;
}
}
if (TEXT == *iptr) {
vgagl_vmode = TEXT;
int_error(NO_CARET, "vgagl terminal driver not available");
return 0;
}
modeinfo = vga_getmodeinfo(vgagl_vmode);
#ifdef VGAGL_ENABLE_TRUECOLOR
VGAGL_truecolor = FALSE;
#endif
VGAGL_pm3d_colors = VGAGL_8bit_colors;
VGAGL_pm3d_colors_ = VGAGL_pm3d_colors - 1;
if (modeinfo->colors != 256) {
int_error(NO_CARET, "Error: need a 256 color mode but got %d colors\n",
modeinfo->colors);
return 0;
#ifdef VGAGL_ENABLE_TRUECOLOR
} else if (modeinfo->colors > 256) {
VGAGL_truecolor = TRUE;
VGAGL_pm3d_colors = VGAGL_tri_colors;
VGAGL_pm3d_colors_ = VGAGL_pm3d_colors - 1;
#endif
}
return 1; /* success */
}
TERM_PUBLIC void
VGAGL_init()
{
static TBOOLEAN keytable_initialized = FALSE;
if (!VGAGL_graphics_on) {
/* initialize keyboard tranlation table, only done once */
if (!keytable_initialized) {
VGAGL_init_keytable();
keytable_initialized = TRUE;
}
if (!VGAGL_get_mode()) {
return;
}
}
term->xmax = modeinfo->width;
term->ymax = modeinfo->height;
vgagl_lasty = modeinfo->height - 1;
vgagl_lastx = modeinfo->width - 1;
#if 0
gl_setfont(8, 8, gl_font8x8);
gl_setwritemode(WRITEMODE_MASKED + FONT_COMPRESSED);
fprintf(stderr, "(VGAGL_init) width, height = %d, %d\n", term->xmax, term->ymax);
#endif
}
TERM_PUBLIC void
VGAGL_reset()
{
if (VGAGL_graphics_on && !VGAGL_processing_graphics_events) {
keyboard_close(); /* switch back to cooked mode */
vga_setmousesupport(0); /* turn off mouse */
vga_setmode(TEXT); /* switch to text mode */
VGAGL_save_pal.colorFormulae = -1; /* force later reallocation of palette */
VGAGL_graphics_on = FALSE;
}
}
/* copy virtual screen to physical screen and process
input events until the user leaves the graphics mode */
TERM_PUBLIC void
VGAGL_text()
{
if (!VGAGL_cursor_drawn) {
VGAGL_draw_cursor(VGAGL_cursorx, VGAGL_cursory); /* actually draws the first time the cursor */
VGAGL_cursor_drawn = TRUE;
if (VGAGL_ruler_x >= 0) {
VGAGL_set_ruler(VGAGL_ruler_x, VGAGL_ruler_y);
}
}
gl_copyscreen(&physicalscreen);
/* this is dirty but should work. The purpose is to force
* gnuplot to call VGAGL_graphics() before redrawing. */
term_graphics = FALSE;
if (!VGAGL_graphics_on || VGAGL_processing_graphics_events) {
return;
}
/* go to the input event loop */
VGAGL_eventually_process_graphics_events();
/* switch to TEXT mode */
VGAGL_reset();
}
TERM_PUBLIC void
VGAGL_graphics()
{
if (!VGAGL_graphics_on) {
vga_setmousesupport(1);
if (gl_setcontextvgavirtual(vgagl_vmode)) {
fprintf(stderr, "(VGAGL_graphics) unable to set virtual context\n");
}
gl_getcontext(&backscreen);
vga_setmode(vgagl_vmode);
gl_setcontextvga(vgagl_vmode); /* Physical screen context. */
gl_getcontext(&physicalscreen);
gl_setcontext(&backscreen);
gl_clearscreen(0); /* clear backscreen; we'll draw there */
gl_enableclipping();
VGAGL_set_line_colors();
/* center the cursor on startup */
VGAGL_cursorx = WIDTH / 2;
VGAGL_cursory = HEIGHT / 2;
VGAGL_graphics_on = TRUE;
} else {
/* graphics is already on; clear previous plot */
gl_clearscreen(0);
}
VGAGL_cursor_drawn = FALSE;
VGAGL_savedstr[0] = '\0';
#if 0
{
int avail = vga_ext_set(VGA_EXT_AVAILABLE, VGA_AVAIL_ACCEL);
fprintf(stderr, "ACCELFLAG_FILLBOX %s\n", (avail & ACCELFLAG_FILLBOX) ? "yes" : "no");
fprintf(stderr, "ACCELFLAG_SCREENCOPY %s\n", (avail & ACCELFLAG_SCREENCOPY) ? "yes" : "no");
fprintf(stderr, "ACCELFLAG_PUTIMAGE %s\n", (avail & ACCELFLAG_PUTIMAGE) ? "yes" : "no");
fprintf(stderr, "ACCELFLAG_DRAWLINE %s\n", (avail & ACCELFLAG_DRAWLINE) ? "yes" : "no");
fprintf(stderr, "ACCELFLAG_SETFGCOLOR %s\n", (avail & ACCELFLAG_SETFGCOLOR) ? "yes" : "no");
fprintf(stderr, "ACCELFLAG_SETBGCOLOR %s\n", (avail & ACCELFLAG_SETBGCOLOR) ? "yes" : "no");
fprintf(stderr, "ACCELFLAG_SETTRANSPARENCY %s\n", (avail & ACCELFLAG_SETTRANSPARENCY) ? "yes" : "no");
fprintf(stderr, "ACCELFLAG_SETRASTEROP %s\n", (avail & ACCELFLAG_SETRASTEROP) ? "yes" : "no");
fprintf(stderr, "ACCELFLAG_PUTBITMAP %s\n", (avail & ACCELFLAG_PUTBITMAP) ? "yes" : "no");
fprintf(stderr, "ACCELFLAG_SCREENCOPYBITMAP %s\n", (avail & ACCELFLAG_SCREENCOPYBITMAP) ? "yes" : "no");
fprintf(stderr, "ACCELFLAG_DRAWHLINELIST %s\n", (avail & ACCELFLAG_DRAWHLINELIST) ? "yes" : "no");
fprintf(stderr, "ACCELFLAG_SETMODE %s\n", (avail & ACCELFLAG_SETMODE) ? "yes" : "no");
fprintf(stderr, "ACCELFLAG_SYNC %s\n", (avail & ACCELFLAG_SYNC) ? "yes" : "no");
}
#endif
}
TERM_PUBLIC void
VGAGL_suspend()
{
#if 1
VGA_FPRINTF((stderr, "(VGAGL_suspend) \n"));
keyboard_close(); /* switch back to cooked mode */
vga_setmousesupport(0); /* turn off mouse */
vga_flip();
#endif
}
TERM_PUBLIC void
VGAGL_resume()
{
#if 1
VGA_FPRINTF((stderr, "(VGAGL_resume) \n"));
vga_flip();
keyboard_init(); /* put keyboard to raw mode */
vga_setmousesupport(1); /* turn mouse on */
#endif
}
TERM_PUBLIC void
VGAGL_linetype(int linetype)
{
if (linetype < -3)
linetype = LT_NODRAW;
#ifdef VGAGL_ENABLE_TRUECOLOR
switch (VGAGL_truecolor) {
case TRUE:
current_color = VGAGL_line_cmap[(linetype + 3) % 13];
break;
default:
#endif
current_color = (linetype + 3) % 13;
#ifdef VGAGL_ENABLE_TRUECOLOR
}
#endif
}
TERM_PUBLIC void
VGAGL_move(unsigned int x, unsigned int y)
{
VGAGL_startx = x;
VGAGL_starty = Y(y);
}
TERM_PUBLIC void
VGAGL_vector(unsigned int x, unsigned int y)
{
/* fprintf(stderr, "(VGAGL_vector) x, y = %d %d\n", x, y); */
int sy = Y(y);
gl_line(VGAGL_startx, VGAGL_starty, x, sy, current_color);
VGAGL_startx = x;
VGAGL_starty = sy;
}
TERM_PUBLIC int
VGAGL_text_angle(int ang)
{
VGAGL_angle = (ang ? 1 : 0);
return TRUE;
}
/* driver's coordinate system */
void
VGAGL_xor_pixel_wrapper(int x, int y, int color)
{
/* discard color */
VGAGL_xor_pixel(x, y);
}
/* driver's coordinate system */
static void
VGAGL_putc(unsigned int x, unsigned int y, int c, int ang, int color)
{
int i, j, k;
void (*pixelfun)(int, int, int);
i = (int) (c) - 32;
switch (color) {
case -1:
pixelfun = VGAGL_xor_pixel_wrapper;
break;
default:
pixelfun = gl_setpixel;
}
switch (ang) {
case 0: /* horizontal */
for (x++, j = 0; j < FNT5X9_VBITS; j++, y--) {
for (k = 0; k < FNT5X9_HBITS; k++) {
if ((((unsigned int) (fnt5x9[i][j])) >> k & 1)) {
pixelfun(x + k, y, current_color);
}
}
}
break;
case 1: /* vertical */
for (y--, j = 0; j < FNT5X9_VBITS; j++, x--) {
for (k = 0; k < FNT5X9_HBITS; k++) {
if ((((unsigned int) (fnt5x9[i][j])) >> k & 1)) {
pixelfun(x, y - k, current_color);
}
}
}
break;
default:
fprintf(stderr, "(VGAGL_putc) angle %d not implemented\n",
VGAGL_angle);
}
}
/* driver's coordinate system */
TERM_PUBLIC void
VGAGL_put_text_with_color(
unsigned int x, unsigned int y,
const char *str,
int color)
{
const char* ptr;
switch (VGAGL_angle) {
case 0:
y += VGAGL_VCHAR / 2;
break;
case 1:
x += VGAGL_VCHAR / 2;
break;
}
for (ptr = str; *ptr; ptr++) {
VGAGL_putc(x, y, *ptr, VGAGL_angle, color);
switch (VGAGL_angle) {
case 0:
x += VGAGL_HCHAR;
break;
case 1:
y -= VGAGL_HCHAR;
break;
default:
fprintf(stderr, "(VGAGL_put_text) angle %d not implemented\n",
VGAGL_angle);
}
}
VGAGL_need_update = TRUE;
}
/* gnuplot's coordinate system */
TERM_PUBLIC void
VGAGL_put_text(unsigned int x, unsigned int y, const char *str)
{
VGAGL_put_text_with_color(x, Y(y), str, current_color);
}
void
VGAGL_xor_pixel(int x, int y)
{
int r, g, b;
gl_getpixelrgb(x, y, &r, &g, &b);
r ^= VGAGL_xor_red;
g ^= VGAGL_xor_green;
b ^= VGAGL_xor_blue;
#if 0
fprintf(stderr, " xor: %3d %3d %3d\n", r, g, b);
#endif
gl_setpixelrgb(x, y, r, g, b);
}
void
VGAGL_hline_xor(int x1, int x2, int y)
{
int i;
if (x1 > x2) {
int tmp = x1;
x1 = x2;
x2 = tmp;
}
for (i = x1; i <= x2; i++) {
VGAGL_xor_pixel(i, y);
}
}
void
VGAGL_vline_xor(int y1, int y2, int x)
{
if (y1 > y2) {
/* swap */
int tmp = y1;
y1 = y2;
y2 = tmp;
}
if (-1 == vga_accel(ACCEL_SETRASTEROP, ROP_XOR)) {
/* vga_accel(ACCEL_SETRASTEROP, ROP_XOR) is not available */
int i;
for (i = y1; i <= y2; i++) {
VGAGL_xor_pixel(x, i);
}
} else {
fprintf(stderr, "(VGAGL_vline_xor) accelerated xor was never tested\n");
gl_line(x, y1, x, y2, 1);
vga_accel(ACCEL_SETRASTEROP, ROP_COPY); /* switching back */
}
}
#if 0
void
VGAGL_line_xor(unsigned int x1, unsigned int y1, unsigned int x2, unsigned int y2)
{
if (x1 == x2) {
VGAGL_vline_xor(y1, y2, x1);
} else if (y1 == y2) {
VGAGL_hline_xor(x1, x2, y1);
} else {
fprintf(stderr, "(VGAGL_line_xor) vertical lines not implemented\n");
}
}
#endif
TERM_PUBLIC void
VGAGL_draw_cursor(int x, int y)
{
static const int cursorsize = 5;
VGAGL_hline_xor(x - cursorsize, x + cursorsize, y);
VGAGL_vline_xor(y - cursorsize, y + cursorsize, x);
VGAGL_last_cursorx = x;
VGAGL_last_cursory = y;
}
void
VGAGL_zoombox(int x, int y)
{
VGAGL_hline_xor(VGAGL_zoom.startx, x, VGAGL_zoom.starty);
VGAGL_hline_xor(VGAGL_zoom.startx, x, y);
VGAGL_vline_xor(VGAGL_zoom.starty, y, VGAGL_zoom.startx);
VGAGL_vline_xor(VGAGL_zoom.starty, y, x);
if (*VGAGL_zoom.current_xstr && *VGAGL_zoom.current_ystr) {
int ty;
/* first corner (static) */
ty = VGAGL_zoom.starty - VGAGL_VCHAR / 2;
VGAGL_put_text_with_color(VGAGL_zoom.startx, ty, VGAGL_zoom.current_xstr[0], -1);
VGAGL_put_text_with_color(VGAGL_zoom.startx, ty + VGAGL_VCHAR, VGAGL_zoom.current_ystr[0], -1);
/* second corner (at the curser) */
ty = y - VGAGL_VCHAR / 2;
VGAGL_put_text_with_color(x, ty, VGAGL_zoom.current_xstr[1], -1);
VGAGL_put_text_with_color(x, ty + VGAGL_VCHAR, VGAGL_zoom.current_ystr[1], -1);
}
VGAGL_zoom.currentx = x;
VGAGL_zoom.currenty = y;
}
void
VGAGL_update_zoombox(int x, int y)
{
if (VGAGL_zoom.startx >= 0) {
VGAGL_zoombox(VGAGL_zoom.currentx, VGAGL_zoom.currenty); /* erase old box */
strcpy(VGAGL_zoom.current_xstr[0], VGAGL_zoom.xstr[0]);
strcpy(VGAGL_zoom.current_ystr[0], VGAGL_zoom.ystr[0]);
strcpy(VGAGL_zoom.current_xstr[1], VGAGL_zoom.xstr[1]);
strcpy(VGAGL_zoom.current_ystr[1], VGAGL_zoom.ystr[1]);
VGAGL_zoombox(x, y); /* draw new box */
VGAGL_need_update = TRUE;
}
}
void
VGAGL_update_cursor(int x, int y)
{
VGAGL_draw_cursor(VGAGL_last_cursorx, VGAGL_last_cursory); /* erase old cursor */
VGAGL_draw_cursor(x, y); /* draw new cursor */
VGAGL_need_update = TRUE;
}
void
VGAGL_signal_handler(int signum)
{
struct gp_event_t ge = {-1, -1, -1, -1, -1, ""};
ge.type = GE_modifier;
ge.par1 = 0; /* release all modifiers */
do_event(&ge);
VGAGL_processing_graphics_events = FALSE;
signal(SIGINT, VGAGL_old_handler); /* reset signal handler */
VGAGL_reset();
}
void
VGAGL_eventually_process_graphics_events()
{
/*
VGA_FPRINTF((stderr, "(VGAGL_eventually_process_graphics_events) \n"));
*/
if (VGAGL_graphics_on && !VGAGL_processing_graphics_events) {
int lastbutton = 0;
struct gp_event_t ge = {-1, -1, -1, -1, -1, ""};
TBOOLEAN loop = TRUE;
int yinv;
VGAGL_processing_graphics_events = TRUE;
/* set up a signal hander, so that SIGINT
* can restore a clean terminal state */
VGAGL_old_handler = signal(SIGINT, VGAGL_signal_handler);
keyboard_init(); /* put keyboard to raw mode */
/* put the mouse pointer to the center */
mouse_setposition(VGAGL_cursorx, VGAGL_cursory);
while (VGAGL_graphics_on && loop) {
int button;
int motion;
int ret;
event_plotdone();
if (VGAGL_need_update) {
gl_copyscreen(&physicalscreen);
VGAGL_need_update = FALSE;
}
ret = vga_waitevent(VGA_MOUSEEVENT | VGA_KEYEVENT,
(fd_set*) 0, (fd_set*) 0, (fd_set*) 0, (struct timeval*) 0);
VGAGL_cursorx = mouse_getx();
VGAGL_cursory = mouse_gety();
yinv = term->ymax - VGAGL_cursory;
button = mouse_getbutton();
motion = (-1 != ge.mx && (VGAGL_cursorx != ge.mx || yinv != ge.my));
ge.mx = VGAGL_cursorx;
ge.my = yinv;
if (ret < 0) {
/* error */
loop = FALSE;
}
if ((ret & VGA_MOUSEEVENT)) {
if (button != lastbutton) {
/* button changed (either pressed or released */
int button_changed;
if (button) {
/* button press event */
ge.type = GE_buttonpress;
button_changed = button;
} else {
/* button release event */
button_changed = lastbutton;
ge.type = GE_buttonrelease;
}
if (button_changed & MOUSE_LEFTBUTTON)
ge.par1 = 1;
else if (button_changed & MOUSE_MIDDLEBUTTON)
ge.par1 = 2;
else if (button_changed & MOUSE_RIGHTBUTTON)
ge.par1 = 3;
do_event(&ge);
lastbutton = button;
}
if (motion) {
/* fprintf(stderr, "(motion) VGAGL_cursorx, VGAGL_cursory = %d %d\n", VGAGL_cursorx, VGAGL_cursory); */
ge.type = GE_motion;
do_event(&ge);
VGAGL_update_cursor(VGAGL_cursorx, VGAGL_cursory);
VGAGL_update_zoombox(VGAGL_cursorx, VGAGL_cursory);
}
}
if (ret & VGA_KEYEVENT) {
/* int c = vga_getch(); */
char* state = keyboard_getstate();
int mask = 0;
int i;
/* keyboard_translatekeys() */
if (state[SCANCODE_LEFTCONTROL] || state[SCANCODE_RIGHTCONTROL]) {
mask |= Mod_Ctrl;
}
if (state[SCANCODE_LEFTALT] || state[SCANCODE_RIGHTALT]) {
mask |= Mod_Alt;
}
if (state[SCANCODE_LEFTSHIFT] || state[SCANCODE_RIGHTSHIFT]) {
mask |= Mod_Shift;
}
if (mask) {
ge.type = GE_modifier;
ge.par1 = mask;
do_event(&ge);
} else if (VGAGL_modifier_mask) {
/* modifiers were released */
ge.type = GE_modifier;
ge.par1 = 0;
do_event(&ge);
}
VGAGL_modifier_mask = mask;
for (i = 0; i < KEYTABLE_SIZE; i++) {
if (state[i] && -1 != VGAGL_Keytable[i]) {
if (' ' == VGAGL_Keytable[i] || 'q' == VGAGL_Keytable[i]) {
loop = FALSE;
break;
}
#ifdef VGAGL_DEBUGGING
if (GP_KP_Delete == VGAGL_Keytable[i] && VGAGL_dump_file) {
VGAGL_draw_cursor(VGAGL_last_cursorx, VGAGL_last_cursory); /* erase cursor */
VGAGL_write_dump_file();
VGAGL_draw_cursor(VGAGL_last_cursorx, VGAGL_last_cursory); /* draw cursor */
break;
}
#endif
ge.type = GE_keypress;
ge.par1 = VGAGL_Keytable[i];
ge.par2 = 0;
do_event(&ge);
}
}
} /* VGA_KEYEVENT */
} /* while(1) */
VGAGL_processing_graphics_events = FALSE;
signal(SIGINT, VGAGL_old_handler);
} /* VGAGL_graphics_on */
}
TERM_PUBLIC void
VGAGL_put_tmptext(int i, const char str[])
{
int y = 0;
int x;
char* second;
if (!VGAGL_graphics_on)
return;
switch (i) {
case 0:
/* erase old text */
for (i = 0, y = 0, x = VGAGL_HCHAR; VGAGL_savedstr[i]; i++) {
VGAGL_putc(x, Y(y), VGAGL_savedstr[i], 0, -1);
x += VGAGL_HCHAR;
}
strcpy(VGAGL_savedstr, str);
for (i = 0, y = 0, x = VGAGL_HCHAR; str[i]; i++) {
VGAGL_putc(x, Y(y), str[i], 0, -1);
x += VGAGL_HCHAR;
}
VGAGL_need_update = TRUE;
break;
case 1:
case 2:
--i;
second = (char*) strchr(str, '\r');
if (second == NULL) {
VGAGL_zoom.xstr[i][0] = '\0';
VGAGL_zoom.ystr[i][0] = '\0';
break;
}
*second = '\0'; /* XXX this assumes that str is writable XXX */
second++;
/* if (VGAGL_zoombox_on) DrawBox(plot); */
strcpy(VGAGL_zoom.xstr[i], str);
strcpy(VGAGL_zoom.ystr[i], second);
/* if (plot->zoombox_on) DrawBox(plot); */
VGAGL_need_update = TRUE;
break;
}
return;
}
TERM_PUBLIC void
VGAGL_set_ruler(int x, int y)
{
if (x < 0) {
/* erase last ruler */
VGAGL_hline_xor(0, vgagl_lastx, Y(VGAGL_ruler_y));
VGAGL_vline_xor(0, vgagl_lasty, VGAGL_ruler_x);
VGAGL_ruler_x = -1;
} else {
VGAGL_ruler_x = x;
VGAGL_ruler_y = y;
VGAGL_hline_xor(0, vgagl_lastx, Y(VGAGL_ruler_y));
VGAGL_vline_xor(0, vgagl_lasty, VGAGL_ruler_x);
}
VGAGL_need_update = TRUE;
return;
}
TERM_PUBLIC void
VGAGL_set_cursor(int c, int x, int y)
{
/* VGA_FPRINTF((stderr, "(VGAGL_set_cursor) \n")); */
switch (c) {
case -2: /* warp pointer */
/* TODO */
break;
case -1: /* starting zoombox */
VGAGL_zoom.startx = x;
VGAGL_zoom.starty = Y(y);
VGAGL_zoom.currentx = VGAGL_zoom.startx;
VGAGL_zoom.currenty = VGAGL_zoom.starty;
VGAGL_zoombox(VGAGL_zoom.currentx, VGAGL_zoom.currenty);
break;
case 0: /* standard cross-hair cursor */
if (VGAGL_zoom.startx >= 0) {
VGAGL_zoombox(VGAGL_zoom.currentx, VGAGL_zoom.currenty);
VGAGL_zoom.startx = -1; /* turn zoom box off */
}
break;
case 1: /* cursor during rotation */
/* TODO */
break;
case 2: /* cursor during scaling */
/* TODO */
break;
case 3: /* cursor during zooming */
/* TODO */
break;
default:
fprintf(stderr, "(VGAGL_set_cursor) %s:%d protocol error\n", __FILE__, __LINE__);
break;
}
return;
}
TERM_PUBLIC void
VGAGL_set_clipboard(const char s[])
{
(void) s; /* avoid -Wunused */
return; /* does nothing. */
}
TERM_PUBLIC int
VGAGL_make_palette(t_sm_palette *palette)
{
/* only reallocate colors, if the color spec has changed */
if (palette && (VGAGL_save_pal.colorFormulae < 0
|| palette->colorFormulae != VGAGL_save_pal.colorFormulae
|| palette->colorMode != VGAGL_save_pal.colorMode
|| palette->formulaR != VGAGL_save_pal.formulaR
|| palette->formulaG != VGAGL_save_pal.formulaG
|| palette->formulaB != VGAGL_save_pal.formulaB
|| palette->positive != VGAGL_save_pal.positive)) {
int i, j;
#ifdef VGAGL_ENABLE_TRUECOLOR
switch (VGAGL_truecolor) {
case TRUE:
for (i = 0; i <= VGAGL_tri_colors; i++) {
VGAGL_cmap[i] = gl_rgbcolor
((int)floor(palette->color[i].r * 255.999),
(int)floor(palette->color[i].g * 255.999),
(int)floor(palette->color[i].b * 255.999));
gl_trisetcolorlookup(i, VGAGL_cmap[i]);
}
break;
default:
#endif
for (j = 0, i = pm3d_color_offset; i <= 0xff; i++, j++) {
VGAGL_setpalettecolor(i, palette->color[j].r,
palette->color[j].g, palette->color[j].b);
}
#ifdef VGAGL_ENABLE_TRUECOLOR
}
#endif
VGAGL_save_pal = *palette;
return 0;
} else {
return VGAGL_pm3d_colors;
}
}
/* set color for subsequent VGAGL_filled_polygon() calls. */
TERM_PUBLIC void
VGAGL_set_color(t_colorspec *colorspec)
{
int color;
double gray = colorspec->value;
if (colorspec->type != TC_FRAC)
return;
/* Note that the gray value is supplied for each vertex.
* This is only for routines which don't draw interpolated
* triangles. These routines should supply a negative
* valued as corners[0].spec.gray, if they really want
* this color to be taken. */
color = (gray <= 0) ? 0 : (int)(gray * VGAGL_pm3d_colors);
if (color >= VGAGL_pm3d_colors)
color = VGAGL_pm3d_colors_;
current_color = pm3d_color_offset + color;
VGAGL_gray = gray;
}
TERM_PUBLIC void
VGAGL_filled_polygon(int points, gpiPoint *corners)
{
int i;
int y[4];
if (4 != points) {
fprintf(stderr, "(VGAGL_filled_polygon) can only plot with 4 points\n");
return;
}
if (!VGAGL_interpolate || corners[0].spec.gray < 0) {
/* draw a solid colored triangle */
int color;
double gray = 0;
#if 0
fprintf(stderr, "(VGAGL_filled_polygon) gray = %f\n",
corners[0].spec.gray);
#endif
if (corners[0].spec.gray < 0) {
for (i = 0; i < 4; i++) {
y[i] = Y(corners[i].y);
}
gray = VGAGL_gray;
} else {
for (i = 0; i < 4; i++) {
y[i] = Y(corners[i].y);
gray += corners[0].spec.gray;
}
gray *= 0.25;
}
#ifdef VGAGL_ENABLE_TRUECOLOR
switch (VGAGL_truecolor) {
case TRUE:
/* TODO: this does not work */
color = VGAGL_line_cmap[(int)(gray * VGAGL_pm3d_colors_)];
break;
default:
#endif
color = pm3d_color_offset + (int)(gray * VGAGL_pm3d_colors_);
#ifdef VGAGL_ENABLE_TRUECOLOR
}
#endif
gl_striangle(corners[0].x, y[0], corners[1].x, y[1],
corners[2].x, y[2], color, -1);
gl_striangle(corners[2].x, y[2], corners[3].x, y[3],
corners[0].x, y[0], color, -1);
} else {
/* draw color interpolated triangle */
int color[4];
#ifdef VGAGL_ENABLE_TRUECOLOR
switch (VGAGL_truecolor) {
case TRUE:
for (i = 0; i < 4; i++) {
y[i] = Y(corners[i].y);
color[i] = (int)(corners[i].spec.gray * VGAGL_pm3d_colors_);
}
break;
default:
#endif
for (i = 0; i < 4; i++) {
y[i] = Y(corners[i].y);
color[i] = pm3d_color_offset + (int)(corners[i].spec.gray * VGAGL_pm3d_colors_);
}
#ifdef VGAGL_ENABLE_TRUECOLOR
}
#endif
gl_triangle
(corners[0].x, y[0], color[0],
corners[1].x, y[1], color[1],
corners[2].x, y[2], color[2], -1);
gl_triangle
(corners[2].x, y[2], color[2],
corners[3].x, y[3], color[3],
corners[0].x, y[0], color[0], -1);
}
}
#ifdef VGAGL_DEBUGGING
void
VGAGL_write_dump_file()
{
FILE* fp;
unsigned char* buf;
unsigned char* bufptr;
int x, y, index;
char thisfile[0xff];
static int thisfileno = 0;
if (!VGAGL_dump_file) {
return;
}
sprintf(thisfile, "%s%05d.ppm", VGAGL_dump_file, thisfileno++);
fp = fopen(thisfile, "w");
if (!fp) {
free(VGAGL_dump_file);
VGAGL_dump_file = 0;
}
fprintf(fp, "P6\n");
fprintf(fp, "%d %d\n", modeinfo->width, modeinfo->height);
fprintf(fp, "255\n");
buf = gp_alloc(modeinfo->width * modeinfo->height * 3, "vgagl->buf");
bufptr = buf;
for (y = 0; y < modeinfo->height; y++) {
for (x = 0; x < modeinfo->width; x++) {
index = gl_getpixel(x, y);
while (index < 0) {
/* this is a kludge, as gl_getpixel() seems to
* return pixels > 128 as the negative complement */
index += 256;
}
*bufptr++ = VGAGL_palette[index][0];
*bufptr++ = VGAGL_palette[index][1];
*bufptr++ = VGAGL_palette[index][2];
}
}
fwrite(buf, 3, modeinfo->width * modeinfo->height, fp);
fclose(fp);
}
#endif
#undef Y
#endif
#ifdef TERM_TABLE
TERM_TABLE_START(vgagl_driver)
"vgagl", "vgagl driver with mouse support and smooth colors",
VGAGL_XMAX, VGAGL_YMAX, VGAGL_VCHAR, VGAGL_HCHAR,
VGAGL_VTIC, VGAGL_HTIC, VGAGL_options, VGAGL_init, VGAGL_reset,
VGAGL_text, null_scale, VGAGL_graphics, VGAGL_move, VGAGL_vector,
VGAGL_linetype, VGAGL_put_text, VGAGL_text_angle,
null_justify_text, do_point, do_arrow, set_font_null,
0, /* pointsize */
TERM_CAN_MULTIPLOT|TERM_EXTENDED_COLOR, VGAGL_suspend, VGAGL_resume
, 0, 0 /* fillbox, linewidth */
# ifdef USE_MOUSE
, 0 /* VGAGL_waitforinput */, VGAGL_put_tmptext, VGAGL_set_ruler,
VGAGL_set_cursor, VGAGL_set_clipboard
# endif
, VGAGL_make_palette,
0 /* VGAGL_previous_palette */,
VGAGL_set_color,
VGAGL_filled_polygon
TERM_TABLE_END(vgagl_driver)
#undef LAST_TERM
#define LAST_TERM vgagl_driver
#endif
#ifdef TERM_HELP
START_HELP(vgagl)
"1 vgagl",
"?commands set terminal vgagl",
"?set terminal vgagl",
"?set term vgagl",
"?terminal vgagl",
"?term vgagl",
"?vgagl",
" The `vgagl` driver is a fast linux console driver with full mouse and pm3d",
" support. It looks at the environment variable SVGALIB_DEFAULT_MODE for the",
" default mode; if not set, it uses a 256 color mode with the highest",
" available resolution.",
"",
" Syntax:",
" set terminal vgagl \\",
" background [red] [[green] [blue]] \\",
" [uniform | interpolate] \\",
#if 0
" [dump \"file\"] \\",
#endif
" [mode]",
"",
" The color mode can also be given with the mode option. Both Symbolic",
" names as G1024x768x256 and integers are allowed. The `background` option",
" takes either one or three integers in the range [0, 255]. If only one",
" integers is supplied, it is taken as gray value for the background.",
" If three integers are present, the background gets the corresponding",
" color.",
" The (mutually exclusive) options `interpolate` and `uniform` control",
" if color interpolation is done while drawing triangles (on by default).",
#if 0
"",
" A `screen dump file` can be specified with the `dump \"file\"` option.",
" If this option is present, (i.e the dump file name is not empty) pressing",
" the key KP_Delete will write the file. This action cannot and cannot be",
" rebound. The file is written in raw ppm (P6) format. Note that this option",
" is reset each time the `set term` command is issued.",
#endif
"",
" To get high resolution modes, you will probably have to modify the",
" configuration file of libvga, usually /etc/vga/libvga.conf. Using",
" the VESA fb is a good choice, but this needs to be compiled in the",
" kernel.",
"",
" The vgagl driver uses the first *available* vga mode from the following list:",
" - the driver which was supplied when setting vgagl, e.g. `set term vgagl",
" G1024x768x256` would first check, if the G1024x768x256 mode is available.",
" - the environment variable SVGALIB_DEFAULT_MODE",
" - G1024x768x256",
" - G800x600x256",
" - G640x480x256",
" - G320x200x256",
" - G1280x1024x256",
" - G1152x864x256",
" - G1360x768x256",
" - G1600x1200x256",
""
END_HELP(vgagl)
#endif
#endif /* defined(USE_MOUSE) */
|