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Diffstat (limited to 'deps/sysobj_early/src/util_edid.c')
-rw-r--r--deps/sysobj_early/src/util_edid.c379
1 files changed, 290 insertions, 89 deletions
diff --git a/deps/sysobj_early/src/util_edid.c b/deps/sysobj_early/src/util_edid.c
index 2aa595fa..6d90f6ac 100644
--- a/deps/sysobj_early/src/util_edid.c
+++ b/deps/sysobj_early/src/util_edid.c
@@ -31,16 +31,19 @@
#include "util_edid_svd_table.c"
-/* block must be 128 bytes */
-static int block_check(const void *edid_block_bytes) {
+static int block_check_n(const void *edid_block_bytes, int len) {
if (!edid_block_bytes) return 0;
uint8_t sum = 0;
uint8_t *data = (uint8_t*)edid_block_bytes;
int i;
- for(i=0; i<128; i++)
+ for(i=0; i<len; i++)
sum += data[i];
return sum == 0 ? 1 : 0;
}
+static int block_check(const void *edid_block_bytes) {
+ /* block must be 128 bytes */
+ return block_check_n(edid_block_bytes, 128);
+}
char *hex_bytes(uint8_t *bytes, int count) {
char *buffer = malloc(count*3+1), *p = buffer;
@@ -53,6 +56,51 @@ char *hex_bytes(uint8_t *bytes, int count) {
return buffer;
}
+#define OUTPUT_CPY_SIZE(DEST, SRC) \
+ (DEST).horiz_cm = (SRC).horiz_cm; \
+ (DEST).vert_cm = (SRC).vert_cm; \
+ (DEST).diag_cm = (SRC).diag_cm; \
+ (DEST).diag_in = (SRC).diag_in; \
+ edid_output_fill(&(DEST));
+
+static void edid_output_fill(edid_output *out) {
+ out->diag_cm =
+ sqrt( (out->horiz_cm * out->horiz_cm)
+ + (out->vert_cm * out->vert_cm) );
+ out->diag_in = out->diag_cm / 2.54;
+
+ if (out->is_interlaced) {
+ if (out->vert_lines)
+ out->vert_pixels = out->vert_lines * 2;
+ else
+ out->vert_lines = out->vert_pixels / 2;
+ } else {
+ if (out->vert_lines)
+ out->vert_pixels = out->vert_lines;
+ else
+ out->vert_lines = out->vert_pixels;
+ }
+
+ if (!out->vert_freq_hz && out->pixel_clock_khz) {
+ uint64_t h = out->horiz_pixels + out->horiz_blanking;
+ uint64_t v = out->vert_lines + out->vert_blanking;
+ if (h && v) {
+ uint64_t work = out->pixel_clock_khz * 1000;
+ work /= (h*v);
+ out->vert_freq_hz = work;
+ }
+ }
+
+ out->pixels = out->horiz_pixels;
+ out->pixels *= out->vert_pixels;
+
+ if (out->diag_in) {
+ static const char *inlbl = "\""; /* TODO: unicode */
+ sprintf(out->class_inch, "%0.1f%s", out->diag_in, inlbl);
+ util_strchomp_float(out->class_inch);
+ }
+}
+
static void cea_block_decode(struct edid_cea_block *blk, edid *e) {
int i;
if (blk) {
@@ -90,45 +138,77 @@ static void cea_block_decode(struct edid_cea_block *blk, edid *e) {
}
}
-static void edid_output_fill(edid_output *out) {
- out->diag_cm =
- sqrt( (out->horiz_cm * out->horiz_cm)
- + (out->vert_cm * out->vert_cm) );
- out->diag_in = out->diag_cm / 2.54;
-
- if (out->is_interlaced) {
- if (out->vert_lines)
- out->vert_pixels = out->vert_lines * 2;
- else
- out->vert_lines = out->vert_pixels / 2;
- } else {
- if (out->vert_lines)
- out->vert_pixels = out->vert_lines;
- else
- out->vert_lines = out->vert_pixels;
- }
-
- if (!out->vert_freq_hz && out->pixel_clock_khz) {
- uint64_t h = out->horiz_pixels + out->horiz_blanking;
- uint64_t v = out->vert_lines + out->vert_blanking;
- if (h && v) {
- uint64_t work = out->pixel_clock_khz * 1000;
- work /= (h*v);
- out->vert_freq_hz = work;
+static void did_block_decode(DisplayIDBlock *blk, edid *e) {
+ int b = 3;
+ uint8_t *u8 = blk->ptr;
+ edid_output out = {};
+ if (blk) {
+ switch(blk->type) {
+ case 0x03: /* Type I Detailed timings */
+ out.pixel_clock_khz = u8[b+2] << 16;
+ out.pixel_clock_khz += u8[b+1] << 8;
+ out.pixel_clock_khz += u8[b];
+ out.pixel_clock_khz *= 10;
+ out.horiz_pixels = (u8[b+5] << 8) + u8[b+4];
+ out.horiz_blanking = (u8[b+7] << 8) + u8[b+6];
+ out.vert_lines = (u8[b+13] << 8) + u8[b+12];
+ out.vert_blanking = (u8[b+15] << 8) + u8[b+14];
+ out.is_interlaced = (u8[b+3] >> 4) & 0x1;
+ out.stereo_mode = (u8[b+3] >> 5) & 0x2;
+ out.is_preferred = (u8[b+3] >> 7) & 0x1;
+ out.src = OUTSRC_DID_TYPE_I;
+ edid_output_fill(&out);
+ e->didts[e->didt_count++] = out;
+ break;
+ case 0x13: /* Type VI Detailed timings (super 0x03) */
+ /* UNTESTED */
+ out.pixel_clock_khz = (u8[b+2] << 16) & 0xa0;
+ out.pixel_clock_khz += u8[b+1] << 8;
+ out.pixel_clock_khz += u8[b];
+ out.horiz_pixels = ((u8[b+5] << 8) + u8[b+3]) & 0x7fff;
+ out.vert_lines = ((u8[b+6] << 8) + u8[b+5]) & 0x7fff;
+ // TODO: blanking...
+ out.is_interlaced = (u8[b+13] >> 7) & 0x1;
+ out.stereo_mode = (u8[b+13] >> 5) & 0x2;
+ out.src = OUTSRC_DID_TYPE_VI;
+ edid_output_fill(&out);
+ e->didts[e->didt_count++] = out;
+ break;
+ case 0x22: /* Type VII Detailed timings (super 0x13) */
+ /* UNTESTED */
+ out.pixel_clock_khz = u8[b+2] << 16;
+ out.pixel_clock_khz += u8[b+1] << 8;
+ out.pixel_clock_khz += u8[b];
+ out.horiz_pixels = (u8[b+5] << 8) + u8[b+4];
+ out.horiz_blanking = (u8[b+7] << 8) + u8[b+6];
+ out.vert_lines = (u8[b+13] << 8) + u8[b+12];
+ out.vert_blanking = (u8[b+15] << 8) + u8[b+14];
+ out.is_interlaced = (u8[b+3] >> 4) & 0x1;
+ out.stereo_mode = (u8[b+3] >> 5) & 0x2;
+ out.is_preferred = (u8[b+3] >> 7) & 0x1;
+ out.src = OUTSRC_DID_TYPE_VII;
+ edid_output_fill(&out);
+ e->didts[e->didt_count++] = out;
+ break;
+ case 0x81: /* CTA DisplayID, ... Embedded CEA Blocks */
+ while(b < blk->len) {
+ int db_type = (u8[b] & 0xe0) >> 5;
+ int db_size = u8[b] & 0x1f;
+ e->cea_blocks[e->cea_block_count].header.ptr = &u8[b];
+ e->cea_blocks[e->cea_block_count].header.type = db_type;
+ e->cea_blocks[e->cea_block_count].header.len = db_size;
+ cea_block_decode(&e->cea_blocks[e->cea_block_count], e);
+ e->cea_block_count++;
+ b += db_size + 1;
+ }
+ break;
+ default:
+ break;
}
}
-
- out->pixels = out->horiz_pixels;
- out->pixels *= out->vert_pixels;
-
- if (out->diag_in) {
- static const char *inlbl = "\""; /* TODO: unicode */
- sprintf(out->class_inch, "%0.1f%s", out->diag_in, inlbl);
- util_strchomp_float(out->class_inch);
- }
}
-edid_output edid_output_from_svd(uint8_t index) {
+static edid_output edid_output_from_svd(uint8_t index) {
int i;
if (index >= 128 && index <= 192) index &= 0x7f; /* "native" flag for 0-64 */
for(i = 0; i < (int)G_N_ELEMENTS(cea_standard_timings); i++) {
@@ -140,7 +220,7 @@ edid_output edid_output_from_svd(uint8_t index) {
out.is_interlaced = 1;
out.pixel_clock_khz = cea_standard_timings[i].pixel_clock_mhz * 1000;
out.vert_freq_hz = cea_standard_timings[i].vert_freq_hz;
- out.src = 5;
+ out.src = OUTSRC_SVD;
edid_output_fill(&out);
return out;
}
@@ -160,14 +240,19 @@ edid *edid_new(const char *data, unsigned int len) {
e->ver_major = e->u8[18];
e->ver_minor = e->u8[19];
- e->dtds = malloc(sizeof(struct edid_dtd) * 1000);
- e->cea_blocks = malloc(sizeof(struct edid_cea_block) * 1000);
- e->svds = malloc(sizeof(struct edid_svd) * 1000);
- e->sads = malloc(sizeof(struct edid_sad) * 1000);
- memset(e->dtds, 0, sizeof(struct edid_dtd) * 1000);
- memset(e->cea_blocks, 0, sizeof(struct edid_cea_block) * 1000);
- memset(e->svds, 0, sizeof(struct edid_svd) * 1000);
- memset(e->sads, 0, sizeof(struct edid_sad) * 1000);
+#define RESERVE_COUNT 300
+ e->dtds = malloc(sizeof(struct edid_dtd) * RESERVE_COUNT);
+ e->cea_blocks = malloc(sizeof(struct edid_cea_block) * RESERVE_COUNT);
+ e->svds = malloc(sizeof(struct edid_svd) * RESERVE_COUNT);
+ e->sads = malloc(sizeof(struct edid_sad) * RESERVE_COUNT);
+ e->did_blocks = malloc(sizeof(DisplayIDBlock) * RESERVE_COUNT);
+ e->didts = malloc(sizeof(edid_output) * RESERVE_COUNT);
+ memset(e->dtds, 0, sizeof(struct edid_dtd) * RESERVE_COUNT);
+ memset(e->cea_blocks, 0, sizeof(struct edid_cea_block) * RESERVE_COUNT);
+ memset(e->svds, 0, sizeof(struct edid_svd) * RESERVE_COUNT);
+ memset(e->sads, 0, sizeof(struct edid_sad) * RESERVE_COUNT);
+ memset(e->did_blocks, 0, sizeof(DisplayIDBlock) * RESERVE_COUNT);
+ memset(e->didts, 0, sizeof(edid_output) * RESERVE_COUNT);
uint16_t vid = be16toh(e->u16[4]); /* bytes 8-9 */
e->ven[2] = 64 + (vid & 0x1f);
@@ -210,7 +295,7 @@ edid *edid_new(const char *data, unsigned int len) {
e->etbs[e->etb_count].vert_pixels = v; \
e->etbs[e->etb_count].vert_freq_hz = f; \
e->etbs[e->etb_count].is_interlaced = i; \
- e->etbs[e->etb_count].src = 1; \
+ e->etbs[e->etb_count].src = OUTSRC_ETB; \
edid_output_fill(&e->etbs[e->etb_count]);\
e->etb_count++; };
ETB_CHECK(35, 7, 720, 400, 70, 0); //(VGA)
@@ -262,7 +347,7 @@ edid *edid_new(const char *data, unsigned int len) {
e->stds[e->std_count].out.horiz_pixels = xres;
e->stds[e->std_count].out.vert_pixels = yres;
e->stds[e->std_count].out.vert_freq_hz = vf;
- e->stds[e->std_count].out.src = 2;
+ e->stds[e->std_count].out.src = OUTSRC_STD;
edid_output_fill(&e->stds[e->std_count].out);
e->std_count++;
}
@@ -299,13 +384,41 @@ edid *edid_new(const char *data, unsigned int len) {
else e->ext_blocks_fail++;
if (u8[0] == 0x70) {
- e->std = MAX(e->std, 2);
/* DisplayID */
- // TODO: ...
+ e->did.version = u8[1];
+ if (e->did.version >= 0x20)
+ e->std = MAX(e->std, STD_DISPLAYID20);
+ else e->std = MAX(e->std, STD_DISPLAYID);
+ e->did.extension_length = u8[2];
+ e->did.primary_use_case = u8[3];
+ e->did.extension_count = u8[4];
+ int db_end = u8[2] + 5;
+ int b = 5;
+ while(b < db_end) {
+ int db_type = u8[b];
+ int db_revision = u8[b+1] & 0x7;
+ int db_size = u8[b+2];
+ e->did_blocks[e->did_block_count].ptr = &u8[b];
+ e->did_blocks[e->did_block_count].type = db_type;
+ e->did_blocks[e->did_block_count].revision = db_revision;
+ e->did_blocks[e->did_block_count].len = db_size;
+ did_block_decode(&e->did_blocks[e->did_block_count], e);
+ e->did_block_count++;
+ e->did.blocks++;
+ b += db_size + 3;
+ }
+ if (b != db_end) {
+ // over or under-run ...
+ }
+ e->did.checksum_ok = block_check_n(u8, u8[2] + 5);
+ //printf("DID: v:%02x el:%d uc:%d ec:%d, blocks:%d ok:%d\n",
+ // e->did.version, e->did.extension_length,
+ // e->did.primary_use_case, e->did.extension_count,
+ // e->did.blocks, e->checksum_ok);
}
if (u8[0] == 0x02) {
- e->std = MAX(e->std, 1);
+ e->std = MAX(e->std, STD_EIACEA861);
/* CEA extension */
int db_end = u8[2];
if (db_end) {
@@ -334,6 +447,9 @@ edid *edid_new(const char *data, unsigned int len) {
}
}
}
+ if (e->ext_blocks_ok) {
+ e->std = MAX(e->std, STD_EEDID);
+ }
/* strings */
for(i = 0; i < 4; i++) {
@@ -389,8 +505,8 @@ edid *edid_new(const char *data, unsigned int len) {
uint8_t *u8 = e->dtds[i].ptr;
uint16_t *u16 = (uint16_t*)e->dtds[i].ptr;
edid_output *out = &e->dtds[i].out;
- if (e->dtds[i].cea_ext) out->src = 4;
- else out->src = 3;
+ if (e->dtds[i].cea_ext) out->src = OUTSRC_CEA_DTD;
+ else out->src = OUTSRC_DTD;
out->pixel_clock_khz = le16toh(u16[0]) * 10;
out->horiz_pixels =
((u8[4] & 0xf0) << 4) + u8[2];
@@ -421,42 +537,51 @@ edid *edid_new(const char *data, unsigned int len) {
/* svds */
for(i = 0; i < e->svd_count; i++) {
+ e->svds[i].out = edid_output_from_svd(e->svds[i].v);
if (e->svds[i].v >= 128 &&
e->svds[i].v <= 192) {
e->svds[i].is_native = 1;
+
+ edid_output tmp = e->img_max;
+ /* native res is max real res, right? */
+ e->img_max = e->svds[i].out;
+ e->img_max.is_preferred = 1;
+ OUTPUT_CPY_SIZE(e->img_max, tmp);
}
- e->svds[i].out = edid_output_from_svd(e->svds[i].v);
}
- /* squeeze lists */
- if (!e->dtd_count) {
- free(e->dtds);
- e->dtds = NULL;
- } else {
- e->dtds = realloc(e->dtds, sizeof(struct edid_dtd) * e->dtd_count);
- }
- if (!e->cea_block_count) {
- if (e->cea_blocks)
- free(e->cea_blocks);
- e->cea_blocks = NULL;
- } else {
- e->cea_blocks = realloc(e->cea_blocks, sizeof(struct edid_cea_block) * e->cea_block_count);
- }
- if (!e->svd_count) {
- if (e->svds)
- free(e->svds);
- e->svds = NULL;
- } else {
- e->svds = realloc(e->svds, sizeof(struct edid_svd) * e->svd_count);
+ /* didts */
+ for(i = 0; i < e->didt_count; i++) {
+ int pref = e->didts[i].is_preferred;
+ int max_pref = e->img_max.is_preferred;
+ int bigger = (e->didts[i].pixels > e->img_max.pixels);
+ int better = (e->didts[i].src > e->img_max.src);
+ if (bigger && !max_pref
+ || pref && !max_pref
+ || pref && better) {
+ edid_output tmp = e->img_max;
+ e->img_max = e->didts[i];
+ OUTPUT_CPY_SIZE(e->img_max, tmp);
+ }
}
- if (!e->sad_count) {
- if (e->sads)
- free(e->sads);
- e->sads = NULL;
- } else {
- e->sads = realloc(e->sads, sizeof(struct edid_sad) * e->sad_count);
+
+ if (!e->speaker_alloc_bits && e->sad_count) {
+ /* make an assumption */
+ if (e->sads[0].channels == 2)
+ e->speaker_alloc_bits = 0x1;
}
+ /* squeeze lists */
+#define SQUEEZE(C, L) \
+ if (!e->C) { free(e->L); e->L = NULL; } \
+ else { e->L = realloc(e->L, sizeof(e->L[0]) * (e->C)); }
+
+ SQUEEZE(dtd_count, dtds);
+ SQUEEZE(cea_block_count, cea_blocks);
+ SQUEEZE(svd_count, svds);
+ SQUEEZE(sad_count, sads);
+ SQUEEZE(did_block_count, did_blocks);
+ SQUEEZE(didt_count, didts);
return e;
}
@@ -528,20 +653,26 @@ edid_dump_hex_done:
const char *edid_standard(int std) {
switch(std) {
- case 0: return N_("VESA EDID");
- case 1: return N_("EIA/CEA-861");
- case 2: return N_("VESA DisplayID");
+ case STD_EDID: return N_("VESA EDID");
+ case STD_EEDID: return N_("VESA E-EDID");
+ case STD_EIACEA861: return N_("EIA/CEA-861");
+ case STD_DISPLAYID: return N_("VESA DisplayID");
+ case STD_DISPLAYID20: return N_("VESA DisplayID 2.0");
};
return N_("unknown");
}
const char *edid_output_src(int src) {
switch(src) {
- case 0: return N_("VESA EDID");
- case 1: return N_("VESA EDID ETB");
- case 2: return N_("VESA EDID STD");
- case 3: return N_("VESA EDID DTD");
- case 4: return N_("EIA/CEA-861 DTD");
+ case OUTSRC_EDID: return N_("VESA EDID");
+ case OUTSRC_ETB: return N_("VESA EDID ETB");
+ case OUTSRC_STD: return N_("VESA EDID STD");
+ case OUTSRC_DTD: return N_("VESA EDID DTD");
+ case OUTSRC_CEA_DTD: return N_("EIA/CEA-861 DTD");
+ case OUTSRC_SVD: return N_("EIA/CEA-861 SVD");
+ case OUTSRC_DID_TYPE_I: return N_("DisplayID Type I");
+ case OUTSRC_DID_TYPE_VI: return N_("DisplayID Type VI");
+ case OUTSRC_DID_TYPE_VII: return N_("DisplayID Type VII");
};
return N_("unknown");
}
@@ -592,6 +723,46 @@ const char *edid_cea_block_type(int type) {
return N_("unknown type");
}
+const char *edid_did_block_type(int type) {
+ switch(type) {
+ /* 1.x */
+ case 0x00: return N_("Product Identification (1.x)");
+ case 0x01: return N_("Display Parameters (1.x)");
+ case 0x02: return N_("Color Characteristics (1.x)");
+ case 0x03: return N_("Type I Timing - Detailed (1.x)");
+ case 0x04: return N_("Type II Timing - Detailed (1.x)");
+ case 0x05: return N_("Type III Timing - Short (1.x)");
+ case 0x06: return N_("Type IV Timing - DMT ID Code (1.x)");
+ case 0x07: return N_("VESA Timing Standard (1.x)");
+ case 0x08: return N_("CEA Timing Standard (1.x)");
+ case 0x09: return N_("Video Timing Range (1.x)");
+ case 0x0A: return N_("Product Serial Number (1.x)");
+ case 0x0B: return N_("General Purpose ASCII String (1.x)");
+ case 0x0C: return N_("Display Device Data (1.x)");
+ case 0x0D: return N_("Interface Power Sequencing (1.x)");
+ case 0x0E: return N_("Transfer Characteristics (1.x)");
+ case 0x0F: return N_("Display Interface Data (1.x)");
+ case 0x10: return N_("Stereo Display Interface (1.x)");
+ case 0x11: return N_("Type V Timing - Short (1.x)");
+ case 0x13: return N_("Type VI Timing - Detailed (1.x)");
+ case 0x7F: return N_("Vendor specific (1.x)");
+ /* 2.x */
+ case 0x20: return N_("Product Identification");
+ case 0x21: return N_("Display Parameters");
+ case 0x22: return N_("Type VII - Detailed Timing");
+ case 0x23: return N_("Type VIII - Enumerated Timing Code");
+ case 0x24: return N_("Type IX - Formula-based Timing");
+ case 0x25: return N_("Dynamic Video Timing Range Limits");
+ case 0x26: return N_("Display Interface Features");
+ case 0x27: return N_("Stereo Display Interface");
+ case 0x28: return N_("Tiled Display Topology");
+ case 0x29: return N_("ContainerID");
+ case 0x7E: return N_("Vendor specific");
+ case 0x81: return N_("CTA DisplayID");
+ }
+ return N_("unknown type");
+}
+
const char *edid_ext_block_type(int type) {
switch(type) {
case 0x00:
@@ -735,6 +906,23 @@ char *edid_cea_block_describe(struct edid_cea_block *blk) {
return ret;
}
+char *edid_did_block_describe(DisplayIDBlock *blk) {
+ gchar *ret = NULL;
+ if (blk) {
+ char *hb = hex_bytes(blk->ptr, blk->len+3);
+ switch(blk->type) {
+ default:
+ ret = g_strdup_printf("([%02x:r%02x] %s) len:%d -- %s",
+ blk->type, blk->revision, _(edid_did_block_type(blk->type)),
+ blk->len,
+ hb);
+ break;
+ }
+ free(hb);
+ }
+ return ret;
+}
+
char *edid_output_describe(edid_output *out) {
gchar *ret = NULL;
if (out) {
@@ -837,6 +1025,7 @@ char *edid_dump2(edid *e) {
for(i = 0; i < e->cea_block_count; i++) {
char *desc = edid_cea_block_describe(&e->cea_blocks[i]);
ret = appfnl(ret, "cea_block[%d] %s", i, desc);
+ free(desc);
}
for(i = 0; i < e->svd_count; i++) {
@@ -853,6 +1042,18 @@ char *edid_dump2(edid *e) {
free(desc);
}
+ for(i = 0; i < e->did_block_count; i++) {
+ char *desc = edid_did_block_describe(&e->did_blocks[i]);
+ ret = appfnl(ret, "did_block[%d] %s", i, desc);
+ free(desc);
+ }
+
+ for(i = 0; i < e->didt_count; i++) {
+ char *desc = edid_output_describe(&e->didts[i]);
+ ret = appfnl(ret, "did_timing[%d]: %s", i, desc);
+ g_free(desc);
+ }
+
return ret;
}
generated by cgit v1.2.3 (git 2.39.1) at 2025-02-05 21:50:44 +0000