Add OculusSDK 0.3.2 Linux Source Code w/o Samples, docs or binaries (libs or tools)

1 files changed, 446 insertions, 0 deletions

diff --git a/3rdParty/EDID/edid.cpp b/3rdParty/EDID/edid.cpp
new file mode 100644
index 0000000..c74def2
--- /dev/null
+++ b/3rdParty/EDID/edid.cpp
@@ -0,0 +1,446 @@
+/*
+ * Copyright 2007 Red Hat, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * on the rights to use, copy, modify, merge, publish, distribute, sub
+ * license, and/or sell copies of the Software, and to permit persons to whom
+ * the Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/* Author: Soren Sandmann <[email protected]> */
+#include "edid.h"
+#include <stdint.h>
+#include <math.h>
+#include <memory.h>
+#include <X11/Xatom.h>
+
+
+static int get_bit(int in, int bit) {
+    return (in & (1 << bit)) >> bit;
+}
+
+static int get_bits(int in, int begin, int end) {
+    int mask = (1 << (end - begin + 1)) - 1;
+
+    return (in >> begin) & mask;
+}
+
+static bool decode_header(const uint8_t *edid) {
+    if (memcmp(edid, "\x00\xff\xff\xff\xff\xff\xff\x00", 8) == 0)
+        return true;
+    return false;
+}
+
+static int decode_vendor_and_product_identification(const uint8_t *edid, MonitorInfo *info) {
+
+    /* Manufacturer Code */
+    info->manufacturer_code[0] = get_bits(edid[0x08], 2, 6);
+    info->manufacturer_code[1] = get_bits(edid[0x08], 0, 1) << 3;
+    info->manufacturer_code[1] |= get_bits(edid[0x09], 5, 7);
+    info->manufacturer_code[2] = get_bits(edid[0x09], 0, 4);
+    info->manufacturer_code[3] = '\0';
+
+    info->manufacturer_code[0] += 'A' - 1;
+    info->manufacturer_code[1] += 'A' - 1;
+    info->manufacturer_code[2] += 'A' - 1;
+
+    /* Product Code */
+    info->product_code = edid[0x0b] << 8 | edid[0x0a];
+
+    /* Serial Number */
+    info->serial_number = edid[0x0c] | edid[0x0d] << 8 | edid[0x0e] << 16 | edid[0x0f] << 24;
+
+    /* Week and Year */
+    bool is_model_year = false;
+    switch (edid[0x10]) {
+    case 0x00:
+        info->production_week = -1;
+        break;
+
+    case 0xff:
+        info->production_week = -1;
+        is_model_year = true;
+        break;
+
+    default:
+        info->production_week = edid[0x10];
+        break;
+    }
+
+    if (is_model_year) {
+        info->production_year = -1;
+        info->model_year = 1990 + edid[0x11];
+    } else {
+        info->production_year = 1990 + edid[0x11];
+        info->model_year = -1;
+    }
+
+    return true;
+}
+
+static bool decode_edid_version(const uint8_t *edid, MonitorInfo *info) {
+    info->major_version = edid[0x12];
+    info->minor_version = edid[0x13];
+    return true;
+}
+
+static bool decode_display_parameters(const uint8_t *edid, MonitorInfo *info) {
+    /* Digital vs Analog */
+    info->is_digital = get_bit(edid[0x14], 7);
+
+    if (info->is_digital) {
+        static const int bit_depth[8] = { -1, 6, 8, 10, 12, 14, 16, -1 };
+        static const Interface interfaces[6] = { UNDEFINED, DVI, HDMI_A, HDMI_B, MDDI, DISPLAY_PORT };
+
+        int bits = get_bits(edid[0x14], 4, 6);
+        info->connector.digital.bits_per_primary = bit_depth[bits];
+
+        bits = get_bits(edid[0x14], 0, 3);
+        if (bits <= 5)
+            info->connector.digital.interface = interfaces[bits];
+        else
+            info->connector.digital.interface = UNDEFINED;
+    } else {
+        int bits = get_bits(edid[0x14], 5, 6);
+        static const double levels[][3] = { //
+                { 0.7, 0.3, 1.0 }, //
+                { 0.714, 0.286, 1.0 }, //
+                { 1.0, 0.4, 1.4 }, //
+                { 0.7, 0.0, 0.7 }, //
+                };
+
+        info->connector.analog.video_signal_level = levels[bits][0];
+        info->connector.analog.sync_signal_level = levels[bits][1];
+        info->connector.analog.total_signal_level = levels[bits][2];
+        info->connector.analog.blank_to_black = get_bit(edid[0x14], 4);
+        info->connector.analog.separate_hv_sync = get_bit(edid[0x14], 3);
+        info->connector.analog.composite_sync_on_h = get_bit(edid[0x14], 2);
+        info->connector.analog.composite_sync_on_green = get_bit(edid[0x14], 1);
+        info->connector.analog.serration_on_vsync = get_bit(edid[0x14], 0);
+    }
+
+    /* Screen Size / Aspect Ratio */
+    if (edid[0x15] == 0 && edid[0x16] == 0) {
+        info->width_mm = -1;
+        info->height_mm = -1;
+        info->aspect_ratio = -1.0;
+    } else if (edid[0x16] == 0) {
+        info->width_mm = -1;
+        info->height_mm = -1;
+        info->aspect_ratio = 100.0 / (edid[0x15] + 99);
+    } else if (edid[0x15] == 0) {
+        info->width_mm = -1;
+        info->height_mm = -1;
+        info->aspect_ratio = 100.0 / (edid[0x16] + 99);
+        info->aspect_ratio = 1 / info->aspect_ratio; /* portrait */
+    } else {
+        info->width_mm = 10 * edid[0x15];
+        info->height_mm = 10 * edid[0x16];
+    }
+
+    /* Gamma */
+    if (edid[0x17] == 0xFF)
+        info->gamma = -1.0;
+    else
+        info->gamma = (edid[0x17] + 100.0) / 100.0;
+
+    /* Features */
+    info->standby = get_bit(edid[0x18], 7);
+    info->suspend = get_bit(edid[0x18], 6);
+    info->active_off = get_bit(edid[0x18], 5);
+
+    if (info->is_digital) {
+        info->connector.digital.rgb444 = 1;
+        if (get_bit(edid[0x18], 3))
+            info->connector.digital.ycrcb444 = 1;
+        if (get_bit(edid[0x18], 4))
+            info->connector.digital.ycrcb422 = 1;
+    } else {
+        int bits = get_bits(edid[0x18], 3, 4);
+        ColorType color_type[4] = { MONOCHROME, RGB, OTHER_COLOR, UNDEFINED_COLOR };
+
+        info->connector.analog.color_type = color_type[bits];
+    }
+
+    info->srgb_is_standard = get_bit(edid[0x18], 2);
+
+    /* In 1.3 this is called "has preferred timing" */
+    info->preferred_timing_includes_native = get_bit(edid[0x18], 1);
+
+    /* FIXME: In 1.3 this indicates whether the monitor accepts GTF */
+    info->continuous_frequency = get_bit(edid[0x18], 0);
+    return true;
+}
+
+static double decode_fraction(int high, int low) {
+    double result = 0.0;
+    high = (high << 2) | low;
+    for (int i = 0; i < 10; ++i)
+        result += get_bit(high, i) * pow(2, i - 10);
+    return result;
+}
+
+static bool decode_color_characteristics(const uint8_t *edid, MonitorInfo *info) {
+    info->red_x = decode_fraction(edid[0x1b], get_bits(edid[0x19], 6, 7));
+    info->red_y = decode_fraction(edid[0x1c], get_bits(edid[0x19], 5, 4));
+    info->green_x = decode_fraction(edid[0x1d], get_bits(edid[0x19], 2, 3));
+    info->green_y = decode_fraction(edid[0x1e], get_bits(edid[0x19], 0, 1));
+    info->blue_x = decode_fraction(edid[0x1f], get_bits(edid[0x1a], 6, 7));
+    info->blue_y = decode_fraction(edid[0x20], get_bits(edid[0x1a], 4, 5));
+    info->white_x = decode_fraction(edid[0x21], get_bits(edid[0x1a], 2, 3));
+    info->white_y = decode_fraction(edid[0x22], get_bits(edid[0x1a], 0, 1));
+
+    return true;
+}
+
+static bool decode_established_timings(const uint8_t *edid, MonitorInfo *info) {
+    static const Timing established[][8] = { //
+            { { 800, 600, 60 }, { 800, 600, 56 }, //
+              { 640, 480, 75 }, { 640, 480, 72 }, //
+              { 640, 480, 67 }, { 640, 480, 60 }, //
+              { 720, 400, 88 }, { 720, 400, 70 } }, //
+            { { 1280, 1024, 75 }, { 1024, 768, 75 }, //
+              { 1024, 768, 70 }, { 1024, 768, 60 }, //
+              { 1024, 768, 87 }, { 832, 624, 75 }, //
+              { 800, 600, 75 }, { 800, 600, 72 } }, //
+            { { 0, 0, 0 }, { 0, 0, 0 }, { 0, 0, 0 }, { 0, 0, 0 }, //
+              { 0, 0, 0 }, { 0, 0, 0 }, { 0, 0, 0 }, { 1152, 870, 75 } }, //
+            };
+
+    int idx = 0;
+    for (int i = 0; i < 3; ++i) {
+        for (int j = 0; j < 8; ++j) {
+            int byte = edid[0x23 + i];
+
+            if (get_bit(byte, j) && established[i][j].frequency != 0)
+                info->established[idx++] = established[i][j];
+        }
+    }
+    return true;
+}
+
+static bool decode_standard_timings(const uint8_t *edid, MonitorInfo *info) {
+    int i;
+
+    for (i = 0; i < 8; i++) {
+        int first = edid[0x26 + 2 * i];
+        int second = edid[0x27 + 2 * i];
+
+        if (first != 0x01 && second != 0x01) {
+            int w = 8 * (first + 31);
+            int h = 0;
+
+            switch (get_bits(second, 6, 7)) {
+            case 0x00:
+                h = (w / 16) * 10;
+                break;
+            case 0x01:
+                h = (w / 4) * 3;
+                break;
+            case 0x02:
+                h = (w / 5) * 4;
+                break;
+            case 0x03:
+                h = (w / 16) * 9;
+                break;
+            }
+
+            info->standard[i].width = w;
+            info->standard[i].height = h;
+            info->standard[i].frequency = get_bits(second, 0, 5) + 60;
+        }
+    }
+
+    return true;
+}
+
+static void decode_lf_string(const uint8_t *s, int n_chars, char *result) {
+    int i;
+    for (i = 0; i < n_chars; ++i) {
+        if (s[i] == 0x0a) {
+            *result++ = '\0';
+            break;
+        } else if (s[i] == 0x00) {
+            /* Convert embedded 0's to spaces */
+            *result++ = ' ';
+        } else {
+            *result++ = s[i];
+        }
+    }
+}
+
+static void decode_display_descriptor(const uint8_t *desc, MonitorInfo *info) {
+    switch (desc[0x03]) {
+    case 0xFC:
+        decode_lf_string(desc + 5, 13, info->dsc_product_name);
+        break;
+    case 0xFF:
+        decode_lf_string(desc + 5, 13, info->dsc_serial_number);
+        break;
+    case 0xFE:
+        decode_lf_string(desc + 5, 13, info->dsc_string);
+        break;
+    case 0xFD:
+        /* Range Limits */
+        break;
+    case 0xFB:
+        /* Color Point */
+        break;
+    case 0xFA:
+        /* Timing Identifications */
+        break;
+    case 0xF9:
+        /* Color Management */
+        break;
+    case 0xF8:
+        /* Timing Codes */
+        break;
+    case 0xF7:
+        /* Established Timings */
+        break;
+    case 0x10:
+        break;
+    }
+}
+
+static void decode_detailed_timing(const uint8_t *timing, DetailedTiming *detailed) {
+    int bits;
+    StereoType stereo[] = { //
+            NO_STEREO, NO_STEREO, //
+            FIELD_RIGHT, FIELD_LEFT, //
+            TWO_WAY_RIGHT_ON_EVEN, TWO_WAY_LEFT_ON_EVEN, //
+            FOUR_WAY_INTERLEAVED, //
+            SIDE_BY_SIDE //
+            };
+
+    detailed->pixel_clock = (timing[0x00] | timing[0x01] << 8) * 10000;
+    detailed->h_addr = timing[0x02] | ((timing[0x04] & 0xf0) << 4);
+    detailed->h_blank = timing[0x03] | ((timing[0x04] & 0x0f) << 8);
+    detailed->v_addr = timing[0x05] | ((timing[0x07] & 0xf0) << 4);
+    detailed->v_blank = timing[0x06] | ((timing[0x07] & 0x0f) << 8);
+    detailed->h_front_porch = timing[0x08] | get_bits(timing[0x0b], 6, 7) << 8;
+    detailed->h_sync = timing[0x09] | get_bits(timing[0x0b], 4, 5) << 8;
+    detailed->v_front_porch = get_bits(timing[0x0a], 4, 7) | get_bits(timing[0x0b], 2, 3) << 4;
+    detailed->v_sync = get_bits(timing[0x0a], 0, 3) | get_bits(timing[0x0b], 0, 1) << 4;
+    detailed->width_mm = timing[0x0c] | get_bits(timing[0x0e], 4, 7) << 8;
+    detailed->height_mm = timing[0x0d] | get_bits(timing[0x0e], 0, 3) << 8;
+    detailed->right_border = timing[0x0f];
+    detailed->top_border = timing[0x10];
+    detailed->interlaced = get_bit(timing[0x11], 7);
+
+    /* Stereo */
+    bits = get_bits(timing[0x11], 5, 6) << 1 | get_bit(timing[0x11], 0);
+    detailed->stereo = stereo[bits];
+
+    /* Sync */
+    bits = timing[0x11];
+
+    detailed->digital_sync = get_bit(bits, 4);
+    if (detailed->digital_sync) {
+        detailed->connector.digital.composite = !get_bit(bits, 3);
+        if (detailed->connector.digital.composite) {
+            detailed->connector.digital.serrations = get_bit(bits, 2);
+            detailed->connector.digital.negative_vsync = 0;
+        } else {
+            detailed->connector.digital.serrations = 0;
+            detailed->connector.digital.negative_vsync = !get_bit(bits, 2);
+        }
+        detailed->connector.digital.negative_hsync = !get_bit(bits, 0);
+    } else {
+        detailed->connector.analog.bipolar = get_bit(bits, 3);
+        detailed->connector.analog.serrations = get_bit(bits, 2);
+        detailed->connector.analog.sync_on_green = !get_bit(bits, 1);
+    }
+}
+
+static bool decode_descriptors(const uint8_t *edid, MonitorInfo *info) {
+    int timing_idx = 0;
+    for (int i = 0; i < 4; ++i) {
+        int index = 0x36 + i * 18;
+        if (edid[index + 0] == 0x00 && edid[index + 1] == 0x00) {
+            decode_display_descriptor(edid + index, info);
+        } else {
+            decode_detailed_timing(edid + index, &(info->detailed_timings[timing_idx++]));
+        }
+    }
+    info->n_detailed_timings = timing_idx;
+    return true;
+}
+
+static void decode_check_sum(const uint8_t *edid, MonitorInfo *info) {
+    uint8_t check = 0;
+    for (int i = 0; i < 128; ++i)
+        check += edid[i];
+    info->checksum = check;
+}
+
+MonitorInfo * decode_edid(const uint8_t *edid) {
+    MonitorInfo *info = new MonitorInfo();
+    decode_check_sum(edid, info);
+    if (decode_header(edid) && //
+            decode_vendor_and_product_identification(edid, info) && //
+            decode_edid_version(edid, info) && //
+            decode_display_parameters(edid, info) && //
+            decode_color_characteristics(edid, info) && //
+            decode_established_timings(edid, info) && //
+            decode_standard_timings(edid, info) && //
+            decode_descriptors(edid, info)) {
+        return info;
+    } else {
+        delete info;
+        return 0;
+    }
+}
+
+static uint8_t * get_property(Display *dpy, RROutput output, Atom atom, int *len) {
+    unsigned char *prop;
+    int actual_format;
+    unsigned long nitems, bytes_after;
+    Atom actual_type;
+    uint8_t *result = NULL;
+
+    XRRGetOutputProperty(dpy, output, atom, 0, 100, False, False,
+    AnyPropertyType, &actual_type, &actual_format, &nitems, &bytes_after, &prop);
+
+    if (actual_type == XA_INTEGER && actual_format == 8) {
+        result = new uint8_t[nitems];
+        memcpy(result, prop, nitems);
+        if (len)
+            *len = nitems;
+    }
+    XFree(prop);
+    return result;
+}
+
+MonitorInfo * read_edid_data(Display * disp, RROutput id) {
+    int len;
+    Atom edid_atom = XInternAtom(disp, "EDID", false);
+    uint8_t *edid = get_property(disp, id, edid_atom, &len);
+    if (!edid) {
+        edid_atom = XInternAtom(disp, "EDID_DATA", false);
+        edid = get_property(disp, id, edid_atom, &len);
+    }
+
+    MonitorInfo * result = 0;
+    if (edid) {
+        if (len % 128 == 0) {
+            result = decode_edid(edid);
+        }
+        delete[] edid;
+    }
+
+    return result;
+}