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Updated DRM cursor rendering

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This commit is contained in:
Scott Anderson 2017-08-06 21:38:40 +12:00
parent aedfa27d3a
commit 1db97a9af9
6 changed files with 173 additions and 132 deletions
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61
types/wlr_output.c
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@ -88,67 +88,8 @@ struct wl_global *wlr_output_create_global(
return wl_global;
}
static const float transforms[][4] = {
[WL_OUTPUT_TRANSFORM_NORMAL] = {
1.0f, 0.0f,
0.0f, -1.0f,
},
[WL_OUTPUT_TRANSFORM_90] = {
0.0f, -1.0f,
-1.0f, 0.0f,
},
[WL_OUTPUT_TRANSFORM_180] = {
-1.0f, 0.0f,
0.0f, 1.0f,
},
[WL_OUTPUT_TRANSFORM_270] = {
0.0f, 1.0f,
1.0f, 0.0f,
},
[WL_OUTPUT_TRANSFORM_FLIPPED] = {
-1.0f, 0.0f,
0.0f, -1.0f,
},
[WL_OUTPUT_TRANSFORM_FLIPPED_90] = {
0.0f, 1.0f,
-1.0f, 0.0f,
},
[WL_OUTPUT_TRANSFORM_FLIPPED_180] = {
1.0f, 0.0f,
0.0f, 1.0f,
},
[WL_OUTPUT_TRANSFORM_FLIPPED_270] = {
0.0f, -1.0f,
1.0f, 0.0f,
},
};
// Equivilent to glOrtho(0, width, 0, height, 1, -1) with the transform applied
static void set_matrix(float mat[static 16], int32_t width, int32_t height,
enum wl_output_transform transform) {
memset(mat, 0, sizeof(*mat) * 16);
const float *t = transforms[transform];
float x = 2.0f / width;
float y = 2.0f / height;
// Rotation + relection
mat[0] = x * t[0];
mat[1] = x * t[1];
mat[4] = y * t[2];
mat[5] = y * t[3];
// Translation
mat[3] = -copysign(1.0f, mat[0] + mat[1]);
mat[7] = -copysign(1.0f, mat[4] + mat[5]);
// Identity
mat[10] = 1.0f;
mat[15] = 1.0f;
}
void wlr_output_update_matrix(struct wlr_output *output) {
set_matrix(output->transform_matrix, output->width, output->height, output->transform);
wlr_matrix_surface(output->transform_matrix, output->width, output->height, output->transform);
}
struct wlr_output *wlr_output_create(struct wlr_output_impl *impl,