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Make the buffer clearing more robust

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Now happens immediately after the buffer is swapped. Fixes #1104
This commit is contained in:
Kovid Goyal
2018-11-13 20:59:39 +05:30
parent 3e26f96744
commit 235bcacc7b
2 changed files with 5 additions and 7 deletions
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7
kitty/glfw.c
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@@ -816,8 +816,11 @@ is_mouse_hidden(OSWindow *w) {
void void
swap_window_buffers(OSWindow *w) { swap_window_buffers(OSWindow *os_window) {
glfwSwapBuffers(w->handle); glfwSwapBuffers(os_window->handle);
// ensure all pixels are cleared to background color at least once in the
// new buffer
if (os_window->clear_count++ < 2) blank_os_window(os_window);
} }
void void

5
kitty/shaders.c
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@@ -437,11 +437,6 @@ blank_os_window(OSWindow *os_window) {
bool bool
send_cell_data_to_gpu(ssize_t vao_idx, ssize_t gvao_idx, GLfloat xstart, GLfloat ystart, GLfloat dx, GLfloat dy, Screen *screen, OSWindow *os_window) { send_cell_data_to_gpu(ssize_t vao_idx, ssize_t gvao_idx, GLfloat xstart, GLfloat ystart, GLfloat dx, GLfloat dy, Screen *screen, OSWindow *os_window) {
bool changed = false; bool changed = false;
if (os_window->clear_count < 2) {
os_window->clear_count++;
blank_os_window(os_window);
changed = true;
}
if (os_window->fonts_data) { if (os_window->fonts_data) {
if (cell_prepare_to_render(vao_idx, gvao_idx, screen, xstart, ystart, dx, dy, os_window->fonts_data)) changed = true; if (cell_prepare_to_render(vao_idx, gvao_idx, screen, xstart, ystart, dx, dy, os_window->fonts_data)) changed = true;
} }