diff options
Diffstat (limited to 'src/backends/edid-parse.c')
| -rw-r--r-- | src/backends/edid-parse.c | 217 |
1 files changed, 210 insertions, 7 deletions
diff --git a/src/backends/edid-parse.c b/src/backends/edid-parse.c index 2723c4a14..6c3878429 100644 --- a/src/backends/edid-parse.c +++ b/src/backends/edid-parse.c @@ -29,6 +29,11 @@ #include <math.h> #include <glib.h> +#ifdef HAVE_LIBDISPLAY_INFO +#include <libdisplay-info/edid.h> +#include <libdisplay-info/info.h> +#endif + #include "backends/edid.h" /* VESA E-EDID */ @@ -313,19 +318,217 @@ decode_extensions (const uint8_t *edid, return TRUE; } +#ifdef HAVE_LIBDISPLAY_INFO +static void +decode_edid_descriptors (const struct di_edid *di_edid, + const struct di_edid_display_descriptor *desc, + MetaEdidInfo *info) +{ + enum di_edid_display_descriptor_tag desc_tag; + + desc_tag = di_edid_display_descriptor_get_tag (desc); + + switch (desc_tag) + { + case DI_EDID_DISPLAY_DESCRIPTOR_PRODUCT_SERIAL: + info->dsc_serial_number = di_edid_display_descriptor_get_string (desc); + break; + case DI_EDID_DISPLAY_DESCRIPTOR_PRODUCT_NAME: + info->dsc_product_name = di_edid_display_descriptor_get_string (desc); + break; + } +} + +static void +decode_edid_colorimetry (const struct di_cta_colorimetry_block *colorimetry, + MetaEdidInfo *info) +{ + /* Colorimetry Data Block */ + if (colorimetry->xvycc_601) + info->colorimetry |= META_EDID_COLORIMETRY_XVYCC601; + if (colorimetry->xvycc_709) + info->colorimetry |= META_EDID_COLORIMETRY_XVYCC709; + if (colorimetry->sycc_601) + info->colorimetry |= META_EDID_COLORIMETRY_SYCC601; + if (colorimetry->opycc_601) + info->colorimetry |= META_EDID_COLORIMETRY_OPYCC601; + if (colorimetry->oprgb) + info->colorimetry |= META_EDID_COLORIMETRY_OPRGB; + if (colorimetry->bt2020_cycc) + info->colorimetry |= META_EDID_COLORIMETRY_BT2020CYCC; + if (colorimetry->bt2020_ycc) + info->colorimetry |= META_EDID_COLORIMETRY_BT2020YCC; + if (colorimetry->bt2020_rgb) + info->colorimetry |= META_EDID_COLORIMETRY_BT2020RGB; + if (colorimetry->st2113_rgb) + info->colorimetry |= META_EDID_COLORIMETRY_ST2113RGB; + if (colorimetry->ictcp) + info->colorimetry |= META_EDID_COLORIMETRY_ICTCP; +} + +static void +decode_edid_hdr_static_metadata (const struct di_cta_hdr_static_metadata_block *hdr, + MetaEdidInfo *info) +{ + /* HDR Static Metadata Block */ + if (hdr->eotfs->traditional_sdr) + info->hdr_static_metadata.tf |= META_EDID_TF_TRADITIONAL_GAMMA_SDR; + if (hdr->eotfs->traditional_hdr) + info->hdr_static_metadata.tf |= META_EDID_TF_TRADITIONAL_GAMMA_HDR; + if (hdr->eotfs->pq) + info->hdr_static_metadata.tf |= META_EDID_TF_PQ; + if (hdr->eotfs->hlg) + info->hdr_static_metadata.tf |= META_EDID_TF_HLG; + + if (hdr->descriptors->type1) + info->hdr_static_metadata.sm |= META_EDID_STATIC_METADATA_TYPE1; + + if (hdr->desired_content_max_luminance != 0) + info->hdr_static_metadata.max_luminance = round (hdr->desired_content_max_luminance); + if (hdr->desired_content_max_frame_avg_luminance != 0) + info->hdr_static_metadata.max_fal = hdr->desired_content_max_frame_avg_luminance; + if (hdr->desired_content_min_luminance != 0) + info->hdr_static_metadata.min_luminance = round (hdr->desired_content_min_luminance); +} +static void +decode_edid_cta_ext (const struct di_edid_cta *cta, + MetaEdidInfo *info) +{ + const struct di_cta_data_block *const *data_blks; + const struct di_cta_data_block *data_blk; + enum di_cta_data_block_tag data_blk_tag; + const struct di_cta_colorimetry_block *colorimetry; + const struct di_cta_hdr_static_metadata_block *hdr_static_metadata; + + data_blks = di_edid_cta_get_data_blocks (cta); + for (data_index = 0; data_blks[data_index]!=NULL; data_index++) + { + data_blk = data_blks[data_index]; + data_blk_tag = di_cta_data_block_get_tag (data_blk); + + switch (data_blk_tag) + { + case DI_CTA_DATA_BLOCK_COLORIMETRY: + colorimetry = di_cta_data_block_get_colorimetry (data_blk); + g_assert (colorimetry); + decode_edid_colorimetry (colorimetry, info) + break; + case DI_CTA_DATA_BLOCK_HDR_STATIC_METADATA: + hdr_static_metadata = di_cta_data_block_get_hdr_static_metadata (data_blk); + g_assert (hdr_static_metadata); + decode_edid_hdr_static_metadata (hdr_static_metadata, info); + break; + } + } +} + +static void +decode_edid_extensions (const struct di_edid_ext *ext, + MetaEdidInfo *info) +{ + enum di_edid_ext_tag ext_tag; + const struct di_edid_cta *cta; + ext_tag = di_edid_ext_get_tag (ext); + + switch (ext_tag) + { + case DI_EDID_EXT_CEA: + cta = di_edid_ext_get_cta (ext); + decode_edid_cta_ext (cta, info); + break; + } +} +#endif + +static gboolean +decode_edid_info (const uint8_t *edid, + MetaEdidInfo *info, + size_t size) +{ +#ifdef HAVE_LIBDISPLAY_INFO + const struct di_edid *di_edid; + struct di_info *edid_info; + const struct di_edid_vendor_product *vendor_product; + const struct di_edid_chromaticity_coords *chromaticity_coords; + float gamma; + const struct di_edid_display_descriptor *const *edid_descriptors; + const struct di_edid_ext *const *extensions; + + edid_info = di_info_parse_edid (edid, size); + + if (!edid_info) + { + return FALSE; + } + + di_edid = di_info_get_edid (edid_info); + + /* Vendor and Product identification */ + vendor_product = di_edid_get_vendor_product (di_edid); + + /* Manufacturer Code */ + strncpy (info->manufacturer_code, vendor_product->manufacturer, + sizeof(info->manufacturer_code)); + + /* Product Code */ + info->product_code = vendor_product->product; + + /* Serial Number */ + info->serial_number = vendor_product->serial; + + /* Color Characteristics */ + chromaticity_coords = di_edid_get_chromaticity_coords (di_edid); + info->red_x = chromaticity_coords->red_x; + info->red_y = chromaticity_coords->red_y; + info->green_x = chromaticity_coords->green_x; + info->green_y = chromaticity_coords->green_y; + info->blue_x = chromaticity_coords->blue_x; + info->blue_y = chromaticity_coords->blue_y; + info->white_x = chromaticity_coords->white_x; + info->white_y = chromaticity_coords->white_y; + + /* Gamma */ + gamma = di_edid_get_basic_gamma (di_edid); + if (gamma != 0) + info->gamma = gamma; + else + info->gamma = -1; + + /* Descriptors */ + edid_descriptors = di_edid_get_display_descriptors (di_edid); + for (desc_index = 0; edid_descriptors[desc_index] != NULL; i++) + { + decode_edid_descriptors (di_edid, edid_descriptors[desc_index], info); + } + + /* Extension Blocks */ + extensions = di_edid_get_extensions (di_edid); + + for (ext_index = 0; extensions[ext_index] != NULL; i++) + { + decode_edid_extensions (extensions[ext_index], info); + } + + return TRUE; +#else + return decode_header (edid) && + decode_vendor_and_product_identification (edid, info) && + decode_display_parameters (edid, info) && + decode_color_characteristics (edid, info) && + decode_descriptors (edid, info) && + decode_extensions (edid, info); +#endif +} + MetaEdidInfo * -meta_edid_info_new_parse (const uint8_t *edid) +meta_edid_info_new_parse (const uint8_t *edid, + size_t size) { MetaEdidInfo *info; info = g_new0 (MetaEdidInfo, 1); - if (decode_header (edid) - && decode_vendor_and_product_identification (edid, info) - && decode_display_parameters (edid, info) - && decode_color_characteristics (edid, info) - && decode_descriptors (edid, info) - && decode_extensions (edid, info)) + if (decode_edid_info (edid, info, size)) { return info; } |