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comparison src/redraw_man.c @ 541:f42419c08a65 Android_Skia

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Swap geo_t::cur_area and geo_t::last_area correctly. See comment of GEO_SWAP() in redraw_man.c.
author Thinker K.F. Li <thinker@branda.to>
date Mon, 24 May 2010 21:09:32 +0800
parents 43b26ac2f69b
children b42d69ab8857 d2f2ed27b84d
comparison
equal deleted inserted replaced
540:43b26ac2f69b 541:f42419c08a65
1488 */ 1488 */
1489 static 1489 static
1490 void zeroing_coord(redraw_man_t *rdman, coord_t *coord) { 1490 void zeroing_coord(redraw_man_t *rdman, coord_t *coord) {
1491 coord_t *cur; 1491 coord_t *cur;
1492 area_t *area, *saved_area; 1492 area_t *area, *saved_area;
1493 geo_t *geo;
1493 co_aix min_x, min_y; 1494 co_aix min_x, min_y;
1494 co_aix max_x, max_y; 1495 co_aix max_x, max_y;
1495 co_aix x, y; 1496 co_aix x, y;
1496 int w, h; 1497 int w, h;
1497 int c_w, c_h; 1498 int c_w, c_h;
1577 /* Shift space */ 1578 /* Shift space */
1578 aggr = coord_get_aggr_matrix(cur); 1579 aggr = coord_get_aggr_matrix(cur);
1579 aggr[3] -= min_x; 1580 aggr[3] -= min_x;
1580 aggr[5] -= min_y; 1581 aggr[5] -= min_y;
1581 1582
1583 FOR_COORD_MEMBERS(coord, geo) {
1584 /* \see GEO_SWAP() */
1585 if(!geo_get_flags(geo, GEF_SWAP))
1586 SWAP(geo->cur_area, geo->last_area, area_t *);
1587 }
1582 coord_clean_members_n_compute_area(cur); 1588 coord_clean_members_n_compute_area(cur);
1583 } 1589 }
1584 1590
1585 /* 1591 /*
1586 * Setup canvas 1592 * Setup canvas
1896 coord_clear_flags(dpca_coords[i], COF_TEMP_MARK); 1902 coord_clear_flags(dpca_coords[i], COF_TEMP_MARK);
1897 } 1903 }
1898 1904
1899 return OK; 1905 return OK;
1900 } 1906 }
1907
1908 /*! \brief Swap geo_t::cur_area and geo_t::last_area for a geo_t.
1909 *
1910 * It is call by rdman_clean_dirties() to swap areas for members of
1911 * dirty coord in redraw_man_t::dirty_coords and dirty geos in
1912 * redraw_man_t::dirty_geos.
1913 *
1914 * zeroing_coord() would also swap some areas for members of
1915 * descendants of a cached coord. But, only members that was not
1916 * swapped, without GEF_SWAP flag, in this round of redrawing.
1917 * zeroing_coord() would not mark geos with GEF_SWAP since it not not
1918 * referenced later. We don't mark geos in zeroing_coord() because we
1919 * don't want to unmark it later. To unmark it, we should re-travel
1920 * forest of cached coords in redraw_man_t::zeroing_coords. It is
1921 * expansive.
1922 */
1923 #define GEO_SWAP(g) \
1924 if(!geo_get_flags((g), GEF_SWAP)) { \
1925 SWAP((g)->cur_area, (g)->last_area, area_t *); \
1926 geo_set_flags((g), GEF_SWAP); \
1927 }
1901 1928
1902 /* \brief Clean dirty coords and shapes. 1929 /* \brief Clean dirty coords and shapes.
1903 * 1930 *
1904 * The procedure of clean dirty coords and shapes include 3 major steps. 1931 * The procedure of clean dirty coords and shapes include 3 major steps.
1905 * 1932 *
1938 static int rdman_clean_dirties(redraw_man_t *rdman) { 1965 static int rdman_clean_dirties(redraw_man_t *rdman) {
1939 int r; 1966 int r;
1940 int i; 1967 int i;
1941 coord_t **coords, *coord; 1968 coord_t **coords, *coord;
1942 geo_t **geos; 1969 geo_t **geos;
1970 geo_t *geo;
1943 1971
1944 /* coord_t::cur_area of coords are temporary pointed to 1972 /* coord_t::cur_area of coords are temporary pointed to
1945 * coord_canvas_info_t::owner_mems_area for store area 1973 * coord_canvas_info_t::owner_mems_area for store area
1946 * by clean_coord(). 1974 * by clean_coord().
1947 */ 1975 */
1948 coords = rdman->dirty_coords.ds; 1976 coords = rdman->dirty_coords.ds;
1949 for(i = 0; i < rdman->dirty_coords.num; i++) { 1977 for(i = 0; i < rdman->dirty_coords.num; i++) {
1950 coord = coords[i]; 1978 coord = coords[i];
1951 SWAP(coord->cur_area, coord->last_area, area_t *); 1979 SWAP(coord->cur_area, coord->last_area, area_t *);
1980 FOR_COORD_MEMBERS(coord, geo) {
1981 GEO_SWAP(geo);
1982 }
1952 } 1983 }
1953 1984
1954 geos = rdman->dirty_geos.ds; 1985 geos = rdman->dirty_geos.ds;
1955 for(i = 0; i < rdman->dirty_geos.num; i++) 1986 for(i = 0; i < rdman->dirty_geos.num; i++) {
1956 if(geos[i]->flags & GEF_DIRTY) 1987 geo = geos[i];
1957 SWAP(geos[i]->cur_area, geos[i]->last_area, area_t *); 1988 GEO_SWAP(geo);
1958 1989 }
1990
1959 r = clean_rdman_coords(rdman); 1991 r = clean_rdman_coords(rdman);
1960 if(r != OK) 1992 if(r != OK)
1961 return ERR; 1993 return ERR;
1962 1994
1963 /* TODO: save area of cached coord and descendants in 1995 /* TODO: save area of cached coord and descendants in
1989 2021
1990 /* 2022 /*
1991 * Clear all flags setted by zeroing. 2023 * Clear all flags setted by zeroing.
1992 */ 2024 */
1993 coords = rdman->dirty_coords.ds; 2025 coords = rdman->dirty_coords.ds;
1994 for(i = 0; i < rdman->dirty_coords.num; i++) 2026 for(i = 0; i < rdman->dirty_coords.num; i++) {
1995 coord_clear_flags(coords[i], COF_JUST_CLEAN); 2027 coord = coords[i];
2028 coord_clear_flags(coord, COF_JUST_CLEAN);
2029 /* \see GEO_SWAP() */
2030 FOR_COORD_MEMBERS(coord, geo) {
2031 geo_clear_flags(geo, GEF_SWAP);
2032 }
2033 }
1996 coords = rdman->zeroing_coords.ds; 2034 coords = rdman->zeroing_coords.ds;
1997 for(i = 0; i < rdman->zeroing_coords.num; i++) 2035 for(i = 0; i < rdman->zeroing_coords.num; i++)
1998 coord_clear_flags(coords[i], 2036 coord_clear_flags(coords[i],
1999 COF_JUST_CLEAN | COF_JUST_ZERO | COF_SKIP_ZERO); 2037 COF_JUST_CLEAN | COF_JUST_ZERO | COF_SKIP_ZERO);
2000 coords = rdman->dirty_pcache_area_coords.ds; 2038 coords = rdman->dirty_pcache_area_coords.ds;
2001 for(i = 0; i < rdman->dirty_pcache_area_coords.num; i++) 2039 for(i = 0; i < rdman->dirty_pcache_area_coords.num; i++)
2002 coord_clear_flags(coords[i], 2040 coord_clear_flags(coords[i],
2003 COF_JUST_CLEAN | COF_JUST_ZERO | COF_SKIP_ZERO); 2041 COF_JUST_CLEAN | COF_JUST_ZERO | COF_SKIP_ZERO);
2042
2043 /* \see GEO_SWAP() */
2044 for(i = 0; i < rdman->dirty_geos.num; i++) {
2045 geo = geos[i];
2046 geo_clear_flags(geo, GEF_SWAP);
2047 }
2004 2048
2005 return OK; 2049 return OK;
2006 } 2050 }
2007 2051
2008 2052