diff options
| -rw-r--r-- | include/system/graphics.h | 130 | ||||
| -rw-r--r-- | init/property_service.c | 23 |
2 files changed, 151 insertions, 2 deletions
diff --git a/include/system/graphics.h b/include/system/graphics.h index be86ae4..b33900b 100644 --- a/include/system/graphics.h +++ b/include/system/graphics.h @@ -297,6 +297,136 @@ enum { HAL_TRANSFORM_RESERVED = 0x08, }; +/** + * Colorspace Definitions + * ====================== + * + * Colorspace is the definition of how pixel values should be interpreted. + * It includes primaries (including white point) and the transfer + * characteristic function, which describes both gamma curve and numeric + * range (within the bit depth). + */ + +enum { + /* + * Arbitrary colorspace with manually defined characteristics. + * Colorspace definition must be communicated separately. + * + * This is used when specifying primaries, transfer characteristics, + * etc. separately. + * + * A typical use case is in video encoding parameters (e.g. for H.264), + * where a colorspace can have separately defined primaries, transfer + * characteristics, etc. + */ + HAL_COLORSPACE_ARBITRARY = 0x1, + + /* + * YCbCr Colorspaces + * ----------------- + * + * Primaries are given using (x,y) coordinates in the CIE 1931 definition + * of x and y specified by ISO 11664-1. + * + * Transfer characteristics are the opto-electronic transfer characteristic + * at the source as a function of linear optical intensity (luminance). + */ + + /* + * JPEG File Interchange Format (JFIF) + * + * Same model as BT.601-625, but all values (Y, Cb, Cr) range from 0 to 255 + * + * Transfer characteristic curve: + * E = 1.099 * L ^ 0.45 - 0.099, 1.00 >= L >= 0.018 + * E = 4.500 L, 0.018 > L >= 0 + * L - luminance of image 0 <= L <= 1 for conventional colorimetry + * E - corresponding electrical signal + * + * Primaries: x y + * green 0.290 0.600 + * blue 0.150 0.060 + * red 0.640 0.330 + * white (D65) 0.3127 0.3290 + */ + HAL_COLORSPACE_JFIF = 0x101, + + /* + * ITU-R Recommendation 601 (BT.601) - 625-line + * + * Standard-definition television, 625 Lines (PAL) + * + * For 8-bit-depth formats: + * Luma (Y) samples should range from 16 to 235, inclusive + * Chroma (Cb, Cr) samples should range from 16 to 240, inclusive + * + * For 10-bit-depth formats: + * Luma (Y) samples should range from 64 to 940, inclusive + * Chroma (Cb, Cr) samples should range from 64 to 960, inclusive + * + * Transfer characteristic curve: + * E = 1.099 * L ^ 0.45 - 0.099, 1.00 >= L >= 0.018 + * E = 4.500 L, 0.018 > L >= 0 + * L - luminance of image 0 <= L <= 1 for conventional colorimetry + * E - corresponding electrical signal + * + * Primaries: x y + * green 0.290 0.600 + * blue 0.150 0.060 + * red 0.640 0.330 + * white (D65) 0.3127 0.3290 + */ + HAL_COLORSPACE_BT601_625 = 0x102, + + /* + * ITU-R Recommendation 601 (BT.601) - 525-line + * + * Standard-definition television, 525 Lines (NTSC) + * + * For 8-bit-depth formats: + * Luma (Y) samples should range from 16 to 235, inclusive + * Chroma (Cb, Cr) samples should range from 16 to 240, inclusive + * + * For 10-bit-depth formats: + * Luma (Y) samples should range from 64 to 940, inclusive + * Chroma (Cb, Cr) samples should range from 64 to 960, inclusive + * + * Transfer characteristic curve: + * E = 1.099 * L ^ 0.45 - 0.099, 1.00 >= L >= 0.018 + * E = 4.500 L, 0.018 > L >= 0 + * L - luminance of image 0 <= L <= 1 for conventional colorimetry + * E - corresponding electrical signal + * + * Primaries: x y + * green 0.310 0.595 + * blue 0.155 0.070 + * red 0.630 0.340 + * white (D65) 0.3127 0.3290 + */ + HAL_COLORSPACE_BT601_525 = 0x103, + + /* + * ITU-R Recommendation 709 (BT.709) + * + * High-definition television + * + * For 8-bit-depth formats: + * Luma (Y) samples should range from 16 to 235, inclusive + * Chroma (Cb, Cr) samples should range from 16 to 240, inclusive + * + * For 10-bit-depth formats: + * Luma (Y) samples should range from 64 to 940, inclusive + * Chroma (Cb, Cr) samples should range from 64 to 960, inclusive + * + * Primaries: x y + * green 0.300 0.600 + * blue 0.150 0.060 + * red 0.640 0.330 + * white (D65) 0.3127 0.3290 + */ + HAL_COLORSPACE_BT709 = 0x104, +}; + #ifdef __cplusplus } #endif diff --git a/init/property_service.c b/init/property_service.c index ac63377..db5a45b 100644 --- a/init/property_service.c +++ b/init/property_service.c @@ -24,6 +24,7 @@ #include <dirent.h> #include <limits.h> #include <errno.h> +#include <sys/poll.h> #include <cutils/misc.h> #include <cutils/sockets.h> @@ -368,6 +369,9 @@ void handle_property_set_fd() socklen_t addr_size = sizeof(addr); socklen_t cr_size = sizeof(cr); char * source_ctx = NULL; + struct pollfd ufds[1]; + const int timeout_ms = 2 * 1000; /* Default 2 sec timeout for caller to send property. */ + int nr; if ((s = accept(property_set_fd, (struct sockaddr *) &addr, &addr_size)) < 0) { return; @@ -380,7 +384,21 @@ void handle_property_set_fd() return; } - r = TEMP_FAILURE_RETRY(recv(s, &msg, sizeof(msg), 0)); + ufds[0].fd = s; + ufds[0].events = POLLIN; + ufds[0].revents = 0; + nr = TEMP_FAILURE_RETRY(poll(ufds, 1, timeout_ms)); + if (nr == 0) { + ERROR("sys_prop: timeout waiting for uid=%d to send property message.\n", cr.uid); + close(s); + return; + } else if (nr < 0) { + ERROR("sys_prop: error waiting for uid=%d to send property message. err=%d %s\n", cr.uid, errno, strerror(errno)); + close(s); + return; + } + + r = TEMP_FAILURE_RETRY(recv(s, &msg, sizeof(msg), MSG_DONTWAIT)); if(r != sizeof(prop_msg)) { ERROR("sys_prop: mis-match msg size received: %d expected: %zu errno: %d\n", r, sizeof(prop_msg), errno); @@ -523,7 +541,8 @@ static void load_persistent_properties() || (sb.st_gid != 0) || (sb.st_nlink != 1)) { ERROR("skipping insecure property file %s (uid=%u gid=%u nlink=%d mode=%o)\n", - entry->d_name, sb.st_uid, sb.st_gid, sb.st_nlink, sb.st_mode); + entry->d_name, (unsigned int)sb.st_uid, (unsigned int)sb.st_gid, + sb.st_nlink, sb.st_mode); close(fd); continue; } |