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render: add simple functions to render rectangles and ellipses

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emersion 2018-03-26 12:41:51 -04:00
parent bcb74c2c78
commit 793c3b3047
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GPG key ID: 0FDE7BE0E88F5E48
6 changed files with 61 additions and 30 deletions
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43
render/wlr_renderer.c
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@ -39,13 +39,16 @@ struct wlr_texture *wlr_render_texture_create(struct wlr_renderer *r) {
bool wlr_render_texture(struct wlr_renderer *r, struct wlr_texture *texture,
const float projection[static 9], int x, int y, float alpha) {
float mat[9];
wlr_matrix_identity(mat);
wlr_matrix_translate(mat, x, y);
wlr_matrix_scale(mat, texture->width, texture->height);
wlr_matrix_multiply(mat, projection, mat);
const struct wlr_box box = {
.x = x, .y = y,
.width = texture->width, .height = texture->height,
};
return wlr_render_texture_with_matrix(r, texture, mat, alpha);
float matrix[9];
wlr_matrix_project_box(matrix, &box, WL_OUTPUT_TRANSFORM_NORMAL, 0,
projection);
return wlr_render_texture_with_matrix(r, texture, matrix, alpha);
}
bool wlr_render_texture_with_matrix(struct wlr_renderer *r,
@ -54,14 +57,32 @@ bool wlr_render_texture_with_matrix(struct wlr_renderer *r,
return r->impl->render_texture_with_matrix(r, texture, matrix, alpha);
}
void wlr_render_colored_quad(struct wlr_renderer *r,
const float color[static 4], const float matrix[static 9]) {
r->impl->render_quad(r, color, matrix);
void wlr_render_rect(struct wlr_renderer *r, const struct wlr_box *box,
const float color[static 4], const float projection[static 9]) {
float matrix[9];
wlr_matrix_project_box(matrix, box, WL_OUTPUT_TRANSFORM_NORMAL, 0,
projection);
wlr_render_quad_with_matrix(r, color, matrix);
}
void wlr_render_colored_ellipse(struct wlr_renderer *r,
void wlr_render_quad_with_matrix(struct wlr_renderer *r,
const float color[static 4], const float matrix[static 9]) {
r->impl->render_ellipse(r, color, matrix);
r->impl->render_quad_with_matrix(r, color, matrix);
}
void wlr_render_ellipse(struct wlr_renderer *r, const struct wlr_box *box,
const float color[static 4], const float projection[static 9]) {
float matrix[9];
wlr_matrix_project_box(matrix, box, WL_OUTPUT_TRANSFORM_NORMAL, 0,
projection);
wlr_render_ellipse_with_matrix(r, color, matrix);
}
void wlr_render_ellipse_with_matrix(struct wlr_renderer *r,
const float color[static 4], const float matrix[static 9]) {
r->impl->render_ellipse_with_matrix(r, color, matrix);
}
const enum wl_shm_format *wlr_renderer_get_formats(