mirrors/kitty
1
0
Fork 0
mirror of https://github.com/kovidgoyal/kitty synced 2026-07-17 05:54:59 +02:00
Code Issues Packages Projects Releases Wiki Activity

Make the gl pixel clamping functions more widely available

Browse Source
This commit is contained in:
Kovid Goyal
2021-12-05 18:16:36 +05:30
parent 33de23d01d
commit 759feac95b
2 changed files with 18 additions and 18 deletions
Download Patch File Download Diff File Expand all files Collapse all files

18
kitty/graphics.h
View File

@@ -121,6 +121,24 @@ typedef struct {
bool has_margins;
} ScrollData;
static inline float
gl_size(const unsigned int sz, const unsigned int viewport_size) {
// convert pixel sz to OpenGL co-ordinate system.
const float px = 2.f / viewport_size;
return px * sz;
}
static inline float
clamp_position_to_nearest_pixel(float pos, const unsigned int viewport_size) {
// clamp the specified opengl position to the nearest pixel
const float px = 2.f / viewport_size;
const float distance = pos + 1.f;
const float num_of_pixels = roundf(distance / px);
return -1.f + num_of_pixels * px;
}
GraphicsManager* grman_alloc(void);
void grman_clear(GraphicsManager*, bool, CellPixelSize fg);
const char* grman_handle_command(GraphicsManager *self, const GraphicsCommand *g, const uint8_t *payload, Cursor *c, bool *is_dirty, CellPixelSize fg);