diff options
Diffstat (limited to 'fitz/base_geometry.c')
| -rw-r--r-- | fitz/base_geometry.c | 70 |
1 files changed, 35 insertions, 35 deletions
diff --git a/fitz/base_geometry.c b/fitz/base_geometry.c index 311221e0..bd333dfa 100644 --- a/fitz/base_geometry.c +++ b/fitz/base_geometry.c @@ -85,7 +85,7 @@ fz_translate(float tx, float ty) } fz_matrix -fz_invertmatrix(fz_matrix src) +fz_invert_matrix(fz_matrix src) { fz_matrix dst; float rdet = 1 / (src.a * src.d - src.b * src.c); @@ -99,20 +99,20 @@ fz_invertmatrix(fz_matrix src) } int -fz_isrectilinear(fz_matrix m) +fz_is_rectilinear(fz_matrix m) { return (fabsf(m.b) < FLT_EPSILON && fabsf(m.c) < FLT_EPSILON) || (fabsf(m.a) < FLT_EPSILON && fabsf(m.d) < FLT_EPSILON); } float -fz_matrixexpansion(fz_matrix m) +fz_matrix_expansion(fz_matrix m) { return sqrtf(fabsf(m.a * m.d - m.b * m.c)); } fz_point -fz_transformpoint(fz_matrix m, fz_point p) +fz_transform_point(fz_matrix m, fz_point p) { fz_point t; t.x = p.x * m.a + p.y * m.c + m.e; @@ -121,7 +121,7 @@ fz_transformpoint(fz_matrix m, fz_point p) } fz_point -fz_transformvector(fz_matrix m, fz_point p) +fz_transform_vector(fz_matrix m, fz_point p) { fz_point t; t.x = p.x * m.a + p.y * m.c; @@ -131,16 +131,16 @@ fz_transformvector(fz_matrix m, fz_point p) /* Rectangles and bounding boxes */ -const fz_rect fz_infiniterect = { 1, 1, -1, -1 }; -const fz_rect fz_emptyrect = { 0, 0, 0, 0 }; -const fz_rect fz_unitrect = { 0, 0, 1, 1 }; +const fz_rect fz_infinite_rect = { 1, 1, -1, -1 }; +const fz_rect fz_empty_rect = { 0, 0, 0, 0 }; +const fz_rect fz_unit_rect = { 0, 0, 1, 1 }; -const fz_bbox fz_infinitebbox = { 1, 1, -1, -1 }; -const fz_bbox fz_emptybbox = { 0, 0, 0, 0 }; -const fz_bbox fz_unitbbox = { 0, 0, 1, 1 }; +const fz_bbox fz_infinite_bbox = { 1, 1, -1, -1 }; +const fz_bbox fz_empty_bbox = { 0, 0, 0, 0 }; +const fz_bbox fz_unit_bbox = { 0, 0, 1, 1 }; fz_bbox -fz_roundrect(fz_rect f) +fz_round_rect(fz_rect f) { fz_bbox i; i.x0 = floorf(f.x0 + 0.001f); /* adjust by 0.001 to compensate for precision errors */ @@ -151,28 +151,28 @@ fz_roundrect(fz_rect f) } fz_bbox -fz_intersectbbox(fz_bbox a, fz_bbox b) +fz_intersect_bbox(fz_bbox a, fz_bbox b) { fz_bbox r; - if (fz_isinfiniterect(a)) return b; - if (fz_isinfiniterect(b)) return a; - if (fz_isemptyrect(a)) return fz_emptybbox; - if (fz_isemptyrect(b)) return fz_emptybbox; + if (fz_is_infinite_rect(a)) return b; + if (fz_is_infinite_rect(b)) return a; + if (fz_is_empty_rect(a)) return fz_empty_bbox; + if (fz_is_empty_rect(b)) return fz_empty_bbox; r.x0 = MAX(a.x0, b.x0); r.y0 = MAX(a.y0, b.y0); r.x1 = MIN(a.x1, b.x1); r.y1 = MIN(a.y1, b.y1); - return (r.x1 < r.x0 || r.y1 < r.y0) ? fz_emptybbox : r; + return (r.x1 < r.x0 || r.y1 < r.y0) ? fz_empty_bbox : r; } fz_bbox -fz_unionbbox(fz_bbox a, fz_bbox b) +fz_union_bbox(fz_bbox a, fz_bbox b) { fz_bbox r; - if (fz_isinfiniterect(a)) return a; - if (fz_isinfiniterect(b)) return b; - if (fz_isemptyrect(a)) return b; - if (fz_isemptyrect(b)) return a; + if (fz_is_infinite_rect(a)) return a; + if (fz_is_infinite_rect(b)) return b; + if (fz_is_empty_rect(a)) return b; + if (fz_is_empty_rect(b)) return a; r.x0 = MIN(a.x0, b.x0); r.y0 = MIN(a.y0, b.y0); r.x1 = MAX(a.x1, b.x1); @@ -181,21 +181,21 @@ fz_unionbbox(fz_bbox a, fz_bbox b) } fz_rect -fz_transformrect(fz_matrix m, fz_rect r) +fz_transform_rect(fz_matrix m, fz_rect r) { fz_point s, t, u, v; - if (fz_isinfiniterect(r)) + if (fz_is_infinite_rect(r)) return r; s.x = r.x0; s.y = r.y0; t.x = r.x0; t.y = r.y1; u.x = r.x1; u.y = r.y1; v.x = r.x1; v.y = r.y0; - s = fz_transformpoint(m, s); - t = fz_transformpoint(m, t); - u = fz_transformpoint(m, u); - v = fz_transformpoint(m, v); + s = fz_transform_point(m, s); + t = fz_transform_point(m, t); + u = fz_transform_point(m, u); + v = fz_transform_point(m, v); r.x0 = MIN4(s.x, t.x, u.x, v.x); r.y0 = MIN4(s.y, t.y, u.y, v.y); r.x1 = MAX4(s.x, t.x, u.x, v.x); @@ -204,21 +204,21 @@ fz_transformrect(fz_matrix m, fz_rect r) } fz_bbox -fz_transformbbox(fz_matrix m, fz_bbox b) +fz_transform_bbox(fz_matrix m, fz_bbox b) { fz_point s, t, u, v; - if (fz_isinfinitebbox(b)) + if (fz_is_infinite_bbox(b)) return b; s.x = b.x0; s.y = b.y0; t.x = b.x0; t.y = b.y1; u.x = b.x1; u.y = b.y1; v.x = b.x1; v.y = b.y0; - s = fz_transformpoint(m, s); - t = fz_transformpoint(m, t); - u = fz_transformpoint(m, u); - v = fz_transformpoint(m, v); + s = fz_transform_point(m, s); + t = fz_transform_point(m, t); + u = fz_transform_point(m, u); + v = fz_transform_point(m, v); b.x0 = MIN4(s.x, t.x, u.x, v.x); b.y0 = MIN4(s.y, t.y, u.y, v.y); b.x1 = MAX4(s.x, t.x, u.x, v.x); |