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@ -23,13 +23,17 @@ |
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
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* SOFTWARE. |
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*/ |
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#include "config.h" |
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#include <math.h> |
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#include "color_util.h" |
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#include <assert.h> |
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#include <stdlib.h> |
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#include <string.h> |
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#include <stddef.h> |
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#include <libweston/matrix.h> |
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#include "color_util.h" |
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#include "shared/helpers.h" |
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static_assert(sizeof(struct color_float) == 4 * sizeof(float), |
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@ -288,3 +292,41 @@ process_pixel_using_pipeline(enum transfer_fn pre_curve, |
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cf = color_float_apply_matrix(mat, cf); |
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*out = color_float_apply_curve(post_curve, cf); |
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} |
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static void |
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weston_matrix_from_lcmsMAT3(struct weston_matrix *w, const struct lcmsMAT3 *m) |
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{ |
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unsigned r, c; |
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/* column-major */ |
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weston_matrix_init(w); |
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for (c = 0; c < 3; c++) { |
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for (r = 0; r < 3; r++) |
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w->d[c * 4 + r] = m->v[c].n[r]; |
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} |
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} |
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static void |
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lcmsMAT3_from_weston_matrix(struct lcmsMAT3 *m, const struct weston_matrix *w) |
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{ |
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unsigned r, c; |
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for (c = 0; c < 3; c++) { |
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for (r = 0; r < 3; r++) |
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m->v[c].n[r] = w->d[c * 4 + r]; |
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} |
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} |
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void |
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lcmsMAT3_invert(struct lcmsMAT3 *result, const struct lcmsMAT3 *mat) |
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{ |
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struct weston_matrix inv; |
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struct weston_matrix w; |
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int ret; |
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weston_matrix_from_lcmsMAT3(&w, mat); |
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ret = weston_matrix_invert(&inv, &w); |
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assert(ret == 0); |
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lcmsMAT3_from_weston_matrix(result, &inv); |
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} |
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