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2009-11-14 Colin D Bennet <colin@gibibit.com>

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2009-11-14  Vladimir Serbinenko  <phcoder@gmail.com>

	Support for gfxterm in a window.

	* include/grub/gfxterm.h: New file.
	* include/grub/video.h (struct grub_video_rect): New declaration.
	(grub_video_rect_t): Likewise.
	* term/gfxterm.c (struct grub_gfxterm_window): New type.
	(refcount): New variable.
	(render_target): Likewise.
	(window): Likewise.
	(repaint_callback): Likewise.
	(grub_virtual_screen_setup): Use 'render_target'.
	(init_window): New function.
	(grub_gfxterm_init_window): Likewise.
	(grub_gfxterm_init): Check reference counter.
	Use init_window.
	(destroy_window): New function.
	(grub_gfxterm_destroy_window): Likewise.
	(grub_gfxterm_fini): Check reference counter.
	Use destroy_window.
	(redraw_screen_rect): Restore viewport.
	Use 'render_target' and 'window'.
	Call 'repaint_callback'.
	(write_char): Use 'render_target'.
	(draw_cursor): Likewise.
	(scroll_up): Restore viewport.
	Use 'render_target' and 'window'.
	Call 'repaint_callback'.
	(grub_gfxterm_cls): Likewise.
	(grub_gfxterm_refresh): Use 'window'.
	(grub_gfxterm_set_repaint_callback): New function.
	(grub_gfxterm_background_image_cmd): Use 'window'.
	(grub_gfxterm_get_term): New function.
	(GRUB_MOD_INIT(term_gfxterm)): Set 'refcount' to 0.

	Also-By: Vladimir Serbinenko <phcoder@gmail.com>
This commit is contained in:
Colin D Bennet 2009-11-15 00:03:03 +01:00 • committed by Vladimir 'phcoder' Serbinenko
parent a9d407a81e
commit c51a5caeab
4 changed files with 269 additions and 45 deletions
Download patch file Download diff file Expand all files Collapse all files

226
term/gfxterm.c
View file

@ -24,6 +24,7 @@
#include <grub/mm.h>
#include <grub/env.h>
#include <grub/video.h>
#include <grub/gfxterm.h>
#include <grub/bitmap.h>
#include <grub/command.h>
#include <grub/extcmd.h>
@ -103,9 +104,28 @@ struct grub_virtual_screen
struct grub_colored_char *text_buffer;
};
static struct grub_virtual_screen virtual_screen;
struct grub_gfxterm_window
{
unsigned x;
unsigned y;
unsigned width;
unsigned height;
int double_repaint;
};
static int refcount;
static struct grub_video_render_target *render_target;
static struct grub_gfxterm_window window;
static struct grub_virtual_screen virtual_screen;
static grub_gfxterm_repaint_callback_t repaint_callback;
static grub_err_t init_window (struct grub_video_render_target *target,
int x, int y, int width, int height,
int double_repaint,
const char *font_name, int border_width);
static void destroy_window (void);
static struct grub_video_mode_info mode_info;
static struct grub_video_render_target *text_layer;
@ -239,7 +259,7 @@ grub_virtual_screen_setup (unsigned int x, unsigned int y,
set_term_color (virtual_screen.term_color);
grub_video_set_active_render_target (GRUB_VIDEO_RENDER_TARGET_DISPLAY);
grub_video_set_active_render_target (render_target);
/* Clear out text buffer. */
for (i = 0; i < virtual_screen.columns * virtual_screen.rows; i++)
@ -248,21 +268,71 @@ grub_virtual_screen_setup (unsigned int x, unsigned int y,
return grub_errno;
}
static grub_err_t
init_window (struct grub_video_render_target *target,
int x, int y, int width, int height, int double_repaint,
const char *font_name, int border_width)
{
/* Clean up any prior instance. */
destroy_window ();
/* Set the render target. */
render_target = target;
/* Create virtual screen. */
if (grub_virtual_screen_setup (border_width, border_width,
width - 2 * border_width,
height - 2 * border_width,
font_name)
!= GRUB_ERR_NONE)
{
return grub_errno;
}
/* Set window bounds. */
window.x = x;
window.y = y;
window.width = width;
window.height = height;
window.double_repaint = double_repaint;
/* Mark whole window as dirty. */
dirty_region_reset ();
dirty_region_add (0, 0, width, height);
return grub_errno;
}
grub_err_t
grub_gfxterm_init_window (struct grub_video_render_target *target,
int x, int y, int width, int height,
int double_repaint,
const char *font_name, int border_width)
{
if (refcount++ == 0)
init_window (target, x, y, width, height, double_repaint,
font_name, border_width);
return grub_errno;
}
static grub_err_t
grub_gfxterm_init (void)
{
char *font_name;
char *modevar;
const char *font_name;
const char *modevar;
struct grub_video_mode_info mode_info;
char *tmp;
grub_video_color_t color;
int width;
int height;
grub_err_t err;
/* Select the font to use. */
/* If gfxterm has already been initialized by calling the init_window
function, then leave it alone when it is set as the current terminal. */
if (refcount++ != 0)
return GRUB_ERR_NONE;
/* Select the font to use. */
font_name = grub_env_get ("gfxterm_font");
if (! font_name)
font_name = ""; /* Allow fallback to any font. */
font_name = ""; /* Allow fallback to any font. */
/* Parse gfxmode environment variable if set. */
modevar = grub_env_get ("gfxmode");
@ -273,6 +343,8 @@ grub_gfxterm_init (void)
{
tmp = grub_malloc (grub_strlen (modevar)
+ sizeof (DEFAULT_VIDEO_MODE) + 1);
if (! tmp)
return grub_errno;
grub_sprintf (tmp, "%s;" DEFAULT_VIDEO_MODE, modevar);
err = grub_video_set_mode (tmp,
GRUB_VIDEO_MODE_TYPE_PURE_TEXT, 0);
@ -292,27 +364,29 @@ grub_gfxterm_init (void)
grub_video_fill_rect (color, 0, 0, mode_info.width, mode_info.height);
bitmap = 0;
/* Leave borders for virtual screen. */
width = mode_info.width - (2 * DEFAULT_BORDER_WIDTH);
height = mode_info.height - (2 * DEFAULT_BORDER_WIDTH);
/* Select the font to use. */
font_name = grub_env_get ("gfxterm_font");
if (! font_name)
font_name = ""; /* Allow fallback to any font. */
/* Create virtual screen. */
if (grub_virtual_screen_setup (DEFAULT_BORDER_WIDTH, DEFAULT_BORDER_WIDTH,
width, height, font_name) != GRUB_ERR_NONE)
/* Leave borders for virtual screen. */
if (init_window (GRUB_VIDEO_RENDER_TARGET_DISPLAY,
0, 0, mode_info.width, mode_info.height,
mode_info.mode_type & GRUB_VIDEO_MODE_TYPE_DOUBLE_BUFFERED
&& !(mode_info.mode_type
& GRUB_VIDEO_MODE_TYPE_UPDATING_SWAP),
font_name,
DEFAULT_BORDER_WIDTH) != GRUB_ERR_NONE)
{
grub_video_restore ();
return grub_errno;
}
/* Mark whole screen as dirty. */
dirty_region_reset ();
dirty_region_add (0, 0, mode_info.width, mode_info.height);
return (grub_errno = GRUB_ERR_NONE);
return grub_errno;
}
static grub_err_t
grub_gfxterm_fini (void)
static void
destroy_window (void)
{
if (bitmap)
{
@ -320,11 +394,30 @@ grub_gfxterm_fini (void)
bitmap = 0;
}
repaint_callback = 0;
grub_virtual_screen_free ();
}
grub_video_restore ();
void
grub_gfxterm_destroy_window (void)
{
if (--refcount == 0)
destroy_window ();
}
return GRUB_ERR_NONE;
static grub_err_t
grub_gfxterm_fini (void)
{
/* Don't destroy an explicitly initialized terminal instance when it is
unset as the current terminal. */
if (--refcount == 0)
{
destroy_window ();
grub_video_restore ();
}
/* Clear error state. */
return (grub_errno = GRUB_ERR_NONE);
}
static void
@ -332,9 +425,15 @@ redraw_screen_rect (unsigned int x, unsigned int y,
unsigned int width, unsigned int height)
{
grub_video_color_t color;
grub_video_rect_t saved_view;
grub_video_set_active_render_target (GRUB_VIDEO_RENDER_TARGET_DISPLAY);
grub_video_set_active_render_target (render_target);
/* Save viewport and set it to our window. */
grub_video_get_viewport ((unsigned *) &saved_view.x,
(unsigned *) &saved_view.y,
(unsigned *) &saved_view.width,
(unsigned *) &saved_view.height);
grub_video_set_viewport (window.x, window.y, window.width, window.height);
if (bitmap)
{
@ -401,6 +500,14 @@ redraw_screen_rect (unsigned int x, unsigned int y,
y - virtual_screen.offset_y,
width, height);
}
/* Restore saved viewport. */
grub_video_set_viewport (saved_view.x, saved_view.y,
saved_view.width, saved_view.height);
grub_video_set_active_render_target (render_target);
if (repaint_callback)
repaint_callback (x, y, width, height);
}
static void
@ -515,7 +622,7 @@ write_char (void)
grub_video_set_active_render_target (text_layer);
grub_video_fill_rect (bgcolor, x, y, width, height);
grub_font_draw_glyph (glyph, color, x, y + ascent);
grub_video_set_active_render_target (GRUB_VIDEO_RENDER_TARGET_DISPLAY);
grub_video_set_active_render_target (render_target);
/* Mark character to be drawn. */
dirty_region_add (virtual_screen.offset_x + x, virtual_screen.offset_y + y,
@ -546,7 +653,7 @@ draw_cursor (int show)
/* Render cursor to text layer. */
grub_video_set_active_render_target (text_layer);
grub_video_fill_rect (color, x, y, width, height);
grub_video_set_active_render_target (GRUB_VIDEO_RENDER_TARGET_DISPLAY);
grub_video_set_active_render_target (render_target);
/* Mark cursor to be redrawn. */
dirty_region_add (virtual_screen.offset_x + x,
@ -594,10 +701,18 @@ scroll_up (void)
}
else
{
int i = 1;
if (mode_info.mode_type & GRUB_VIDEO_MODE_TYPE_DOUBLE_BUFFERED
&& !(mode_info.mode_type & GRUB_VIDEO_MODE_TYPE_UPDATING_SWAP))
i++;
grub_video_rect_t saved_view;
int i;
grub_video_set_active_render_target (render_target);
/* Save viewport and set it to our window. */
grub_video_get_viewport ((unsigned *) &saved_view.x,
(unsigned *) &saved_view.y,
(unsigned *) &saved_view.width,
(unsigned *) &saved_view.height);
grub_video_set_viewport (window.x, window.y, window.width, window.height);
i = window.double_repaint ? 2 : 1;
color = virtual_screen.bg_color;
@ -610,7 +725,7 @@ scroll_up (void)
virtual_screen.width,
virtual_screen.normal_char_height);
grub_video_set_active_render_target (GRUB_VIDEO_RENDER_TARGET_DISPLAY);
grub_video_set_active_render_target (render_target);
dirty_region_redraw ();
/* Scroll physical screen. */
@ -626,11 +741,18 @@ scroll_up (void)
color = virtual_screen.bg_color;
grub_video_scroll (color, 0, -virtual_screen.normal_char_height);
/* Restore saved viewport. */
grub_video_set_viewport (saved_view.x, saved_view.y,
saved_view.width, saved_view.height);
grub_video_set_active_render_target (render_target);
/* Draw cursor if visible. */
if (virtual_screen.cursor_state)
draw_cursor (1);
}
if (repaint_callback)
repaint_callback (window.x, window.y, window.width, window.height);
}
static void
@ -833,8 +955,9 @@ grub_gfxterm_cls (void)
/* Clear text layer. */
grub_video_set_active_render_target (text_layer);
color = virtual_screen.bg_color;
grub_video_fill_rect (color, 0, 0, mode_info.width, mode_info.height);
grub_video_set_active_render_target (GRUB_VIDEO_RENDER_TARGET_DISPLAY);
grub_video_fill_rect (color, 0, 0,
virtual_screen.width, virtual_screen.height);
grub_video_set_active_render_target (render_target);
/* Mark virtual screen to be redrawn. */
dirty_region_add_virtualscreen ();
@ -905,12 +1028,17 @@ grub_gfxterm_refresh (void)
grub_video_swap_buffers ();
if (mode_info.mode_type & GRUB_VIDEO_MODE_TYPE_DOUBLE_BUFFERED
&& !(mode_info.mode_type & GRUB_VIDEO_MODE_TYPE_UPDATING_SWAP))
if (window.double_repaint)
dirty_region_redraw ();
dirty_region_reset ();
}
void
grub_gfxterm_set_repaint_callback (grub_gfxterm_repaint_callback_t func)
{
repaint_callback = func;
}
/* Option array indices. */
#define BACKGROUND_CMD_ARGINDEX_MODE 0
@ -940,7 +1068,7 @@ grub_gfxterm_background_image_cmd (grub_extcmd_t cmd __attribute__ ((unused)),
/* Mark whole screen as dirty. */
dirty_region_reset ();
dirty_region_add (0, 0, mode_info.width, mode_info.height);
dirty_region_add (0, 0, window.width, window.height);
}
/* If filename was provided, try to load that. */
@ -956,13 +1084,13 @@ grub_gfxterm_background_image_cmd (grub_extcmd_t cmd __attribute__ ((unused)),
|| grub_strcmp (state[BACKGROUND_CMD_ARGINDEX_MODE].arg,
"stretch") == 0)
{
if (mode_info.width != grub_video_bitmap_get_width (bitmap)
|| mode_info.height != grub_video_bitmap_get_height (bitmap))
if (window.width != grub_video_bitmap_get_width (bitmap)
|| window.height != grub_video_bitmap_get_height (bitmap))
{
struct grub_video_bitmap *scaled_bitmap;
grub_video_bitmap_create_scaled (&scaled_bitmap,
mode_info.width,
mode_info.height,
window.width,
window.height,
bitmap,
GRUB_VIDEO_BITMAP_SCALE_METHOD_BEST);
if (grub_errno == GRUB_ERR_NONE)
@ -979,11 +1107,11 @@ grub_gfxterm_background_image_cmd (grub_extcmd_t cmd __attribute__ ((unused)),
{
/* Determine bitmap dimensions. */
bitmap_width = grub_video_bitmap_get_width (bitmap);
bitmap_height = grub_video_bitmap_get_width (bitmap);
bitmap_height = grub_video_bitmap_get_height (bitmap);
/* Mark whole screen as dirty. */
dirty_region_reset ();
dirty_region_add (0, 0, mode_info.width, mode_info.height);
dirty_region_add (0, 0, window.width, window.height);
}
}
@ -1012,10 +1140,18 @@ static struct grub_term_output grub_video_term =
.next = 0
};
const struct grub_term_output *
grub_gfxterm_get_term (void)
{
return &grub_video_term;
}
static grub_extcmd_t background_image_cmd_handle;
GRUB_MOD_INIT(term_gfxterm)
{
refcount = 0;
grub_term_register_output ("gfxterm", &grub_video_term);
background_image_cmd_handle =
grub_register_extcmd ("background_image",