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Added optional zooming for blesses...

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This commit is contained in:
Ognjen Milan Robovic 2023-11-30 14:59:26 -05:00
parent e19ac322d8
commit 91e17f32c6
2 changed files with 37 additions and 25 deletions
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61
chapter/chapter_5.c
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@ -47,10 +47,6 @@ static void blesses_initialize (void) {
unsigned short int window_width = (unsigned short int) blesses_window_width; unsigned short int window_width = (unsigned short int) blesses_window_width;
unsigned short int window_height = (unsigned short int) blesses_window_height; unsigned short int window_height = (unsigned short int) blesses_window_height;
if (blesses_active == TRUE) {
return;
}
blesses_connection = xcb_connect (NULL, NULL); blesses_connection = xcb_connect (NULL, NULL);
fatal_failure (blesses_connection == NULL, "blesses : blesses_initialize : XCB connection is null pointer."); fatal_failure (blesses_connection == NULL, "blesses : blesses_initialize : XCB connection is null pointer.");
@ -76,9 +72,13 @@ static void blesses_initialize (void) {
xcb_flush (blesses_connection); xcb_flush (blesses_connection);
/*blesses_sub_framebuffer = allocate (blesses_window_width * blesses_window_height * (int) sizeof (* blesses_sub_framebuffer) / 4);*/ if (blesses_zoom == TRUE) {
blesses_sub_framebuffer = allocate (blesses_window_width * blesses_window_height * (int) sizeof (* blesses_sub_framebuffer)); blesses_sub_framebuffer = allocate (blesses_window_width * blesses_window_height * (int) sizeof (* blesses_sub_framebuffer) / 4);
blesses_framebuffer = allocate (blesses_window_width * blesses_window_height * (int) sizeof (* blesses_framebuffer)); } else {
blesses_sub_framebuffer = allocate (blesses_window_width * blesses_window_height * (int) sizeof (* blesses_sub_framebuffer));
}
blesses_framebuffer = allocate (blesses_window_width * blesses_window_height * (int) sizeof (* blesses_framebuffer));
} }
static void blesses_deinitialize (void) { static void blesses_deinitialize (void) {
@ -98,11 +98,12 @@ int blesses_active = FALSE;
int blesses_cursor_x = 0; int blesses_cursor_x = 0;
int blesses_cursor_y = 0; int blesses_cursor_y = 0;
int blesses_signal = 0; int blesses_signal = 0;
int blesses_zoom = TRUE;
void blesses_configure (void) { void blesses_configure (void) {
blesses_initialize ();
blesses_active = TRUE; blesses_active = TRUE;
blesses_initialize ();
} }
void blesses_synchronize (void) { void blesses_synchronize (void) {
@ -112,13 +113,15 @@ void blesses_synchronize (void) {
unsigned short int window_height = (unsigned short int) blesses_window_height; unsigned short int window_height = (unsigned short int) blesses_window_height;
xcb_generic_event_t * generic_event = NULL; xcb_generic_event_t * generic_event = NULL;
/*
for (i = 0; i != blesses_window_width * blesses_window_height; i++) { if (blesses_zoom == TRUE) {
blesses_framebuffer [i] = blesses_sub_framebuffer [((i / blesses_window_width) / 2) * (blesses_window_width / 2) + (i % blesses_window_width) / 2]; for (i = 0; i != blesses_window_width * blesses_window_height; i++) {
} blesses_framebuffer [i] = blesses_sub_framebuffer [((i / blesses_window_width) / 2) * (blesses_window_width / 2) + (i % blesses_window_width) / 2];
*/ }
for (i = 0; i != blesses_window_width * blesses_window_height; i++) { } else {
blesses_framebuffer [i] = blesses_sub_framebuffer [i]; for (i = 0; i != blesses_window_width * blesses_window_height; i++) {
blesses_framebuffer [i] = blesses_sub_framebuffer [i];
}
} }
blesses_sub_framebuffer = deallocate (blesses_sub_framebuffer); blesses_sub_framebuffer = deallocate (blesses_sub_framebuffer);
@ -154,9 +157,15 @@ void blesses_synchronize (void) {
generic_event = deallocate (generic_event); generic_event = deallocate (generic_event);
if ((blesses_sub_framebuffer == NULL) && (blesses_framebuffer == NULL)) { if ((blesses_sub_framebuffer == NULL) && (blesses_framebuffer == NULL)) {
/*blesses_sub_framebuffer = allocate (blesses_window_width * blesses_window_height * (int) sizeof (* blesses_sub_framebuffer) / 4);*/ if (blesses_zoom == TRUE) {
blesses_sub_framebuffer = allocate (blesses_window_width * blesses_window_height * (int) sizeof (* blesses_sub_framebuffer)); blesses_sub_framebuffer = allocate (blesses_window_width * blesses_window_height * (int) sizeof (* blesses_sub_framebuffer) / 4);
blesses_framebuffer = allocate (blesses_window_width * blesses_window_height * (int) sizeof (* blesses_framebuffer)); } else {
blesses_sub_framebuffer = allocate (blesses_window_width * blesses_window_height * (int) sizeof (* blesses_sub_framebuffer));
}
// blesses_sub_framebuffer = allocate ((blesses_window_width * blesses_window_height * (int) sizeof (* blesses_sub_framebuffer)) / ((blesses_zoom == TRUE) * 4));
blesses_framebuffer = allocate (blesses_window_width * blesses_window_height * (int) sizeof (* blesses_framebuffer));
} }
if (blesses_active == FALSE) { if (blesses_active == FALSE) {
@ -167,9 +176,9 @@ void blesses_synchronize (void) {
void blesses_render_background_colour (int background) { void blesses_render_background_colour (int background) {
int x, y; int x, y;
for (y = 0; y != blesses_window_height/* / 2*/; ++y) { for (y = 0; y != blesses_window_height / ((blesses_zoom == TRUE) * 2); ++y) {
for (x = 0; x != blesses_window_width/* / 2*/; ++x) { for (x = 0; x != blesses_window_width / ((blesses_zoom == TRUE) * 2); ++x) {
blesses_sub_framebuffer [y * (blesses_window_width/* / 2*/) + x] = (int) (0XFF000000 | (unsigned int) background); blesses_sub_framebuffer [y * (blesses_window_width / ((blesses_zoom == TRUE) * 2)) + x] = (int) (0XFF000000 | (unsigned int) background);
} }
} }
} }
@ -192,8 +201,8 @@ void blesses_render_character (char character, int foreground, int background, i
int offset; int offset;
if ((x <= -1) || (x >= blesses_window_width/* / 2*/ - BLESSES_FONT_WIDTH)) return; if ((x <= -1) || (x >= blesses_window_width / ((blesses_zoom == TRUE) * 2) - BLESSES_FONT_WIDTH)) return;
if ((y <= -1) || (y >= blesses_window_height/* / 2*/ - BLESSES_FONT_HEIGHT)) return; if ((y <= -1) || (y >= blesses_window_height / ((blesses_zoom == TRUE) * 2) - BLESSES_FONT_HEIGHT)) return;
fatal_failure (blesses_sub_framebuffer == NULL, "blesses : render_character : Sub framebuffer was not allocated."); fatal_failure (blesses_sub_framebuffer == NULL, "blesses : render_character : Sub framebuffer was not allocated.");
fatal_failure (blesses_framebuffer == NULL, "blesses : render_character : Framebuffer was not allocated."); fatal_failure (blesses_framebuffer == NULL, "blesses : render_character : Framebuffer was not allocated.");
@ -207,7 +216,9 @@ void blesses_render_character (char character, int foreground, int background, i
int u = offset / BLESSES_FONT_WIDTH + y; int u = offset / BLESSES_FONT_WIDTH + y;
int v = offset % BLESSES_FONT_WIDTH + x; int v = offset % BLESSES_FONT_WIDTH + x;
blesses_sub_framebuffer [u * (blesses_window_width/* / 2*/) + v] = ((font_code [(int) (character - ' ')] >> offset) % 2) ? foreground : background; blesses_sub_framebuffer [u * (blesses_window_width / ((blesses_zoom == TRUE) * 2)) + v] = ((font_code [(int) (character - ' ')] >> offset) % 2)
? foreground
: background;
} }
} }

1
chapter/chapter_5.h
View File

@ -23,6 +23,7 @@ extern int blesses_active;
extern int blesses_cursor_x; extern int blesses_cursor_x;
extern int blesses_cursor_y; extern int blesses_cursor_y;
extern int blesses_signal; extern int blesses_signal;
extern int blesses_zoom;
extern void blesses_configure (void); extern void blesses_configure (void);
extern void blesses_synchronize (void); extern void blesses_synchronize (void);