44 void lv_matrix_identity(lv_matrix_t * matrix)  in lv_matrix_identity()  argument
46     matrix->m[0][0] = 1.0f;  in lv_matrix_identity()
47     matrix->m[0][1] = 0.0f;  in lv_matrix_identity()
48     matrix->m[0][2] = 0.0f;  in lv_matrix_identity()
49     matrix->m[1][0] = 0.0f;  in lv_matrix_identity()
50     matrix->m[1][1] = 1.0f;  in lv_matrix_identity()
51     matrix->m[1][2] = 0.0f;  in lv_matrix_identity()
52     matrix->m[2][0] = 0.0f;  in lv_matrix_identity()
53     matrix->m[2][1] = 0.0f;  in lv_matrix_identity()
54     matrix->m[2][2] = 1.0f;  in lv_matrix_identity()
57 void lv_matrix_translate(lv_matrix_t * matrix, float dx, float dy)  in lv_matrix_translate()  argument
59     if(lv_matrix_is_identity_or_translation(matrix)) {  in lv_matrix_translate()
61         matrix->m[0][2] += dx;  in lv_matrix_translate()
62         matrix->m[1][2] += dy;  in lv_matrix_translate()
73     lv_matrix_multiply(matrix, &tlm);  in lv_matrix_translate()
76 void lv_matrix_scale(lv_matrix_t * matrix, float scale_x, float scale_y)  in lv_matrix_scale()  argument
85     lv_matrix_multiply(matrix, &scm);  in lv_matrix_scale()
88 void lv_matrix_rotate(lv_matrix_t * matrix, float degree)  in lv_matrix_rotate()  argument
101     lv_matrix_multiply(matrix, &rtm);  in lv_matrix_rotate()
104 void lv_matrix_skew(lv_matrix_t * matrix, float skew_x, float skew_y)  in lv_matrix_skew()  argument
118     lv_matrix_multiply(matrix, &skm);  in lv_matrix_skew()
121 void lv_matrix_multiply(lv_matrix_t * matrix, const lv_matrix_t * mul)  in lv_matrix_multiply()  argument
128             tmp.m[y][x] = (matrix->m[y][0] * mul->m[0][x])  in lv_matrix_multiply()
129                           + (matrix->m[y][1] * mul->m[1][x])  in lv_matrix_multiply()
130                           + (matrix->m[y][2] * mul->m[2][x]);  in lv_matrix_multiply()
134     lv_memcpy(matrix, &tmp, sizeof(lv_matrix_t));  in lv_matrix_multiply()
137 bool lv_matrix_inverse(lv_matrix_t * matrix, const lv_matrix_t * m)  in lv_matrix_inverse()  argument
145         lv_matrix_identity(matrix);  in lv_matrix_inverse()
166     matrix->m[0][0] = d * det00;  in lv_matrix_inverse()
167     matrix->m[0][1] = d * ((m->m[2][1] * m->m[0][2]) - (m->m[0][1] * m->m[2][2]));  in lv_matrix_inverse()
168     matrix->m[0][2] = d * ((m->m[0][1] * m->m[1][2]) - (m->m[1][1] * m->m[0][2]));  in lv_matrix_inverse()
169     matrix->m[1][0] = d * det01;  in lv_matrix_inverse()
170     matrix->m[1][1] = d * ((m->m[0][0] * m->m[2][2]) - (m->m[2][0] * m->m[0][2]));  in lv_matrix_inverse()
171     matrix->m[1][2] = d * ((m->m[1][0] * m->m[0][2]) - (m->m[0][0] * m->m[1][2]));  in lv_matrix_inverse()
172     matrix->m[2][0] = is_affine ? 0.0f : d * det02;  in lv_matrix_inverse()
173 …  matrix->m[2][1] = is_affine ? 0.0f : d * ((m->m[2][0] * m->m[0][1]) - (m->m[0][0] * m->m[2][1]));  in lv_matrix_inverse()
174 …  matrix->m[2][2] = is_affine ? 1.0f : d * ((m->m[0][0] * m->m[1][1]) - (m->m[1][0] * m->m[0][1]));  in lv_matrix_inverse()
180 lv_point_precise_t lv_matrix_transform_precise_point(const lv_matrix_t * matrix, const lv_point_pre…  in lv_matrix_transform_precise_point()  argument
183 …p.x = (lv_value_precise_t)roundf(point->x * matrix->m[0][0] + point->y * matrix->m[0][1] + matrix-…  in lv_matrix_transform_precise_point()
184 …p.y = (lv_value_precise_t)roundf(point->x * matrix->m[1][0] + point->y * matrix->m[1][1] + matrix-…  in lv_matrix_transform_precise_point()
188 lv_area_t lv_matrix_transform_area(const lv_matrix_t * matrix, const lv_area_t * area)  in lv_matrix_transform_area()  argument
197     p[0] = lv_matrix_transform_precise_point(matrix, &p[0]);  in lv_matrix_transform_area()
198     p[1] = lv_matrix_transform_precise_point(matrix, &p[1]);  in lv_matrix_transform_area()
199     p[2] = lv_matrix_transform_precise_point(matrix, &p[2]);  in lv_matrix_transform_area()
200     p[3] = lv_matrix_transform_precise_point(matrix, &p[3]);  in lv_matrix_transform_area()
210 bool lv_matrix_is_identity_or_translation(const lv_matrix_t * matrix)  in lv_matrix_is_identity_or_translation()  argument
212     return (matrix->m[0][0] == 1.0f &&  in lv_matrix_is_identity_or_translation()
213             matrix->m[0][1] == 0.0f &&  in lv_matrix_is_identity_or_translation()
214             matrix->m[1][0] == 0.0f &&  in lv_matrix_is_identity_or_translation()
215             matrix->m[1][1] == 1.0f &&  in lv_matrix_is_identity_or_translation()
216             matrix->m[2][0] == 0.0f &&  in lv_matrix_is_identity_or_translation()
217             matrix->m[2][1] == 0.0f &&  in lv_matrix_is_identity_or_translation()
218             matrix->m[2][2] == 1.0f);  in lv_matrix_is_identity_or_translation()