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add helper methods for intersection

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Tony Crisci 2017-08-17 10:12:36 -04:00 • committed by Drew DeVault
parent 420bd3e422
commit 5a9baf487e
3 changed files with 45 additions and 13 deletions
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22
examples/output-layout.c
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@ -46,24 +46,20 @@ static void handle_output_frame(struct output_state *output, struct timespec *ts
struct sample_state *sample = state->data;
struct wlr_output *wlr_output = output->output;
int32_t width, height;
wlr_output_effective_resolution(wlr_output, &width, &height);
wlr_output_make_current(wlr_output);
wlr_renderer_begin(sample->renderer, wlr_output);
float matrix[16];
if (wlr_output_layout_intersects(sample->layout, output->output,
sample->x_offs, sample->y_offs,
sample->x_offs + 128, sample->y_offs + 128)) {
float matrix[16];
// transform global coordinates to local coordinates
int local_x = sample->x_offs;
int local_y = sample->y_offs;
// transform global coordinates to local coordinates
int local_x = sample->x_offs;
int local_y = sample->y_offs;
wlr_output_layout_output_coords(sample->layout, output->output, &local_x,
&local_y);
wlr_output_layout_output_coords(sample->layout, output->output, &local_x,
&local_y);
if (local_x < width && local_x + 128 > 0 && local_y < height &&
local_y + 128 > 0) {
// render the image if it intersects with the output
wlr_texture_get_matrix(sample->cat_texture, &matrix,
&wlr_output->transform_matrix, local_x, local_y);
wlr_render_with_matrix(sample->renderer,