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Merge remote-tracking branch 'upstream/master' into output-damage

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emersion 2018-01-24 14:48:01 +01:00
commit 6281deb90f
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15 changed files with 328 additions and 76 deletions
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50
render/matrix.c
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@ -1,6 +1,8 @@
#include <string.h>
#include <math.h>
#include <wayland-server-protocol.h>
#include <wlr/types/wlr_box.h>
#include <wlr/types/wlr_output.h>
#include <wlr/render/matrix.h>
/* Obtains the index for the given row/column */
@ -158,3 +160,51 @@ void wlr_matrix_texture(float mat[static 16], int32_t width, int32_t height,
mat[10] = 1.0f;
mat[15] = 1.0f;
}
void wlr_matrix_project_box(float (*mat)[16], struct wlr_box *box,
enum wl_output_transform transform, float rotation,
float (*projection)[16]) {
int x = box->x;
int y = box->y;
int width = box->width;
int height = box->height;
wlr_matrix_translate(mat, x, y, 0);
if (rotation != 0) {
float translate_center[16];
wlr_matrix_translate(&translate_center, width/2, height/2, 0);
float rotate[16];
wlr_matrix_rotate(&rotate, rotation);
float translate_origin[16];
wlr_matrix_translate(&translate_origin, -width/2, -height/2, 0);
wlr_matrix_mul(mat, &translate_center, mat);
wlr_matrix_mul(mat, &rotate, mat);
wlr_matrix_mul(mat, &translate_origin, mat);
}
float scale[16];
wlr_matrix_scale(&scale, width, height, 1);
wlr_matrix_mul(mat, &scale, mat);
if (transform != WL_OUTPUT_TRANSFORM_NORMAL) {
float surface_translate_center[16];
wlr_matrix_translate(&surface_translate_center, 0.5, 0.5, 0);
float surface_transform[16];
wlr_matrix_transform(surface_transform, transform);
float surface_translate_origin[16];
wlr_matrix_translate(&surface_translate_origin, -0.5, -0.5, 0);
wlr_matrix_mul(mat, &surface_translate_center, mat);
wlr_matrix_mul(mat, &surface_transform, mat);
wlr_matrix_mul(mat, &surface_translate_origin, mat);
}
wlr_matrix_mul(projection, mat, mat);
}