optimize x11

1 files changed, 7 insertions, 23 deletions

diff --git a/src/screen.c b/src/screen.c
index 064c794..6446357 100644
--- a/src/screen.c
+++ b/src/screen.c
@@ -44,6 +44,9 @@ static void init_x() {
     key_count = dpy->max_keycode - dpy->min_keycode;
     key_state = malloc(sizeof(bool) * key_count);
     key_checked = malloc(sizeof(bool) * key_count);
+
+    memset(key_state, 0, sizeof(bool) * key_count);
+    memset(key_checked, 0, sizeof(bool) * key_count);
 }
 
 static Window create_window(int x, int y, int w, int h, int d) {
@@ -54,7 +57,7 @@ static Window create_window(int x, int y, int w, int h, int d) {
         exit(EXIT_FAILURE);    
     }
 
-    Visual* visual = vis_info.visual;;
+    Visual* visual = vis_info.visual;
     
     XSetWindowAttributes xwa;
     xwa.background_pixel = 0;
@@ -69,14 +72,14 @@ static Window create_window(int x, int y, int w, int h, int d) {
     return window;
 }
 
-static XImage* create_image(int width, int height) {
+static XImage* create_image(int width, int height, void* data) {
     return XCreateImage(
         dpy, 
         CopyFromParent, 
         bit_depth, 
         ZPixmap, 
         0, 
-        malloc(width * height * bit_depth / 8), 
+        data,
         width, 
         height, 
         bit_depth, 
@@ -118,7 +121,7 @@ void init_screen(struct Screen* screen, uint16_t width, uint16_t height) {
     state->height = xwa.height;
     screen->internal = state;
 
-    XImage* image = create_image(state->width, state->height);
+    XImage* image = create_image(state->width, state->height, screen->pixels);
     state->image = image;
 
     count++;
@@ -145,22 +148,6 @@ static void update_delta(struct Screen* screen) {
 static void draw_screen(struct Screen* screen) {
     WindowState* state = (WindowState*) screen->internal;
 
-    uint32_t* src = screen->pixels;
-    uint32_t* dst = (uint32_t*) state->image->data;
-
-    float x_step = screen->width / (float) state->width;
-    float y_step = screen->height / (float) state->height;
-
-    for (int x = 0; x < state->width; x++) {
-        int px = (int) (x * x_step);
-
-        for (int y = 0; y < state->height; y++) {
-            int py = (int) (y * y_step);
-
-            dst[x + y * state->width] = src[px + py * screen->width];
-        }
-    }
-
     XPutImage(
         dpy,
         state->window,
@@ -199,9 +186,6 @@ static void handle_event(WindowState* state) {
             state->width = xce.width;
             state->height = xce.height;
 
-            XDestroyImage(state->image);
-            state->image = create_image(state->width, state->height);
-
             break;
         }