diff options
Diffstat (limited to 'backend/drm/drm.c')
| -rw-r--r-- | backend/drm/drm.c | 282 |
1 files changed, 3 insertions, 279 deletions
diff --git a/backend/drm/drm.c b/backend/drm/drm.c index c0cd89af..d617473c 100644 --- a/backend/drm/drm.c +++ b/backend/drm/drm.c @@ -16,26 +16,7 @@ #include <wlr/interfaces/wlr_output.h> #include <wlr/util/log.h> #include "drm.h" - -static const char *conn_name[] = { - [DRM_MODE_CONNECTOR_Unknown] = "Unknown", - [DRM_MODE_CONNECTOR_VGA] = "VGA", - [DRM_MODE_CONNECTOR_DVII] = "DVI-I", - [DRM_MODE_CONNECTOR_DVID] = "DVI-D", - [DRM_MODE_CONNECTOR_DVIA] = "DVI-A", - [DRM_MODE_CONNECTOR_Composite] = "Composite", - [DRM_MODE_CONNECTOR_SVIDEO] = "SVIDEO", - [DRM_MODE_CONNECTOR_LVDS] = "LVDS", - [DRM_MODE_CONNECTOR_Component] = "Component", - [DRM_MODE_CONNECTOR_9PinDIN] = "DIN", - [DRM_MODE_CONNECTOR_DisplayPort] = "DP", - [DRM_MODE_CONNECTOR_HDMIA] = "HDMI-A", - [DRM_MODE_CONNECTOR_HDMIB] = "HDMI-B", - [DRM_MODE_CONNECTOR_TV] = "TV", - [DRM_MODE_CONNECTOR_eDP] = "eDP", - [DRM_MODE_CONNECTOR_VIRTUAL] = "Virtual", - [DRM_MODE_CONNECTOR_DSI] = "DSI", -}; +#include "drm-util.h" static int cmp_plane(const void *arg1, const void *arg2) { @@ -362,159 +343,8 @@ static void wlr_drm_output_enable(struct wlr_output_state *output, bool enable) wlr_drm_output_swap_buffers(output); } else { drmModeConnectorSetProperty(state->fd, output->connector, output->props.dpms, - DRM_MODE_DPMS_STANDBY); - } -} - -static inline bool is_taken(size_t n, const uint32_t arr[static n], uint32_t key) -{ - for (size_t i = 0; i < n; ++i) { - if (arr[i] == key) { - return true; - } + DRM_MODE_DPMS_OFF); } - return false; -} - -/* - * Store all of the non-recursive state in a struct, so we aren't literally - * passing 12 arguments to a function. - */ -struct match_state { - const size_t num_objs; - const uint32_t *restrict objs; - const size_t num_res; - size_t score; - size_t replaced; - uint32_t *restrict res; - uint32_t *restrict best; - const uint32_t *restrict orig; - bool exit_early; -}; - -enum { - UNMATCHED = (uint32_t)-1, - SKIP = (uint32_t)-2, -}; - -/* - * skips: The number of SKIP elements encountered so far. - * score: The number of resources we've matched so far. - * replaced: The number of changes from the original solution. - * i: The index of the current element. - * - * This tries to match a solution as close to st->orig as it can. - * - * Returns whether we've set a new best element with this solution. - */ -static bool match_obj_(struct match_state *st, size_t skips, size_t score, size_t replaced, size_t i) { - // Finished - if (i >= st->num_res) { - if (score > st->score || (score == st->score && replaced < st->replaced)) { - st->score = score; - st->replaced = replaced; - memcpy(st->best, st->res, sizeof st->best[0] * st->num_res); - - if (st->score == st->num_objs && st->replaced == 0) { - st->exit_early = true; - } - st->exit_early = (st->score == st->num_res - skips - || st->score == st->num_objs) - && st->replaced == 0; - - return true; - } else { - return false; - } - } - - if (st->orig[i] == SKIP) { - st->res[i] = SKIP; - return match_obj_(st, skips + 1, score, replaced, i + 1); - } - - /* - * Attempt to use the current solution first, to try and avoid - * recalculating everything - */ - - if (st->orig[i] != UNMATCHED && !is_taken(i, st->res, st->orig[i])) { - st->res[i] = st->orig[i]; - if (match_obj_(st, skips, score + 1, replaced, i + 1)) { - return true; - } - } - - if (st->orig[i] != UNMATCHED) { - ++replaced; - } - - bool is_best = false; - for (st->res[i] = 0; st->res[i] < st->num_objs; ++st->res[i]) { - // We tried this earlier - if (st->res[i] == st->orig[i]) { - continue; - } - - // Not compatable - if (!(st->objs[st->res[i]] & (1 << i))) { - continue; - } - - // Already taken - if (is_taken(i, st->res, st->res[i])) { - continue; - } - - if (match_obj_(st, skips, score + 1, replaced, i + 1)) { - is_best = true; - } - - if (st->exit_early) { - return true; - } - } - - if (is_best) { - return true; - } - - // Maybe this resource can't be matched - st->res[i] = UNMATCHED; - return match_obj_(st, skips, score, replaced, i + 1); -} - -/* - * Tries to match some DRM objects with some other DRM resource. - * e.g. Match CRTCs with Encoders, CRTCs with Planes. - * - * objs contains a bit array which resources it can be matched with. - * e.g. Bit 0 set means can be matched with res[0] - * - * res contains an index of which objs it is matched with or UNMATCHED. - * - * This solution is left in out. - * Returns the total number of matched solutions. - */ -static size_t match_obj(size_t num_objs, const uint32_t objs[static restrict num_objs], - size_t num_res, const uint32_t res[static restrict num_res], - uint32_t out[static restrict num_res]) { - uint32_t solution[num_res]; - - struct match_state st = { - .num_objs = num_objs, - .num_res = num_res, - .score = 0, - .replaced = SIZE_MAX, - .objs = objs, - .res = solution, - .best = out, - .orig = res, - .exit_early = false, - }; - - match_obj_(&st, 0, 0, 0, 0); - return st.score; } static void realloc_planes(struct wlr_backend_state *drm, const uint32_t *crtc_in) { @@ -769,112 +599,6 @@ static struct wlr_output_impl output_impl = { .swap_buffers = wlr_drm_output_swap_buffers, }; -static int32_t calculate_refresh_rate(drmModeModeInfo *mode) { - int32_t refresh = (mode->clock * 1000000LL / mode->htotal + - mode->vtotal / 2) / mode->vtotal; - - if (mode->flags & DRM_MODE_FLAG_INTERLACE) { - refresh *= 2; - } - - if (mode->flags & DRM_MODE_FLAG_DBLSCAN) { - refresh /= 2; - } - - if (mode->vscan > 1) { - refresh /= mode->vscan; - } - - return refresh; -} - -// Constructed from http://edid.tv/manufacturer -static const char *get_manufacturer(uint16_t id) { -#define ID(a, b, c) ((a & 0x1f) << 10) | ((b & 0x1f) << 5) | (c & 0x1f) - switch (id) { - case ID('A', 'A', 'A'): return "Avolites Ltd"; - case ID('A', 'C', 'I'): return "Ancor Communications Inc"; - case ID('A', 'C', 'R'): return "Acer Technologies"; - case ID('A', 'P', 'P'): return "Apple Computer Inc"; - case ID('B', 'N', 'O'): return "Bang & Olufsen"; - case ID('C', 'M', 'N'): return "Chimei Innolux Corporation"; - case ID('C', 'M', 'O'): return "Chi Mei Optoelectronics corp."; - case ID('C', 'R', 'O'): return "Extraordinary Technologies PTY Limited"; - case ID('D', 'E', 'L'): return "Dell Inc."; - case ID('D', 'O', 'N'): return "DENON, Ltd."; - case ID('E', 'N', 'C'): return "Eizo Nanao Corporation"; - case ID('E', 'P', 'H'): return "Epiphan Systems Inc."; - case ID('F', 'U', 'S'): return "Fujitsu Siemens Computers GmbH"; - case ID('G', 'S', 'M'): return "Goldstar Company Ltd"; - case ID('H', 'I', 'Q'): return "Kaohsiung Opto Electronics Americas, Inc."; - case ID('H', 'S', 'D'): return "HannStar Display Corp"; - case ID('H', 'W', 'P'): return "Hewlett Packard"; - case ID('I', 'N', 'T'): return "Interphase Corporation"; - case ID('I', 'V', 'M'): return "Iiyama North America"; - case ID('L', 'E', 'N'): return "Lenovo Group Limited"; - case ID('M', 'A', 'X'): return "Rogen Tech Distribution Inc"; - case ID('M', 'E', 'G'): return "Abeam Tech Ltd"; - case ID('M', 'E', 'I'): return "Panasonic Industry Company"; - case ID('M', 'T', 'C'): return "Mars-Tech Corporation"; - case ID('M', 'T', 'X'): return "Matrox"; - case ID('N', 'E', 'C'): return "NEC Corporation"; - case ID('O', 'N', 'K'): return "ONKYO Corporation"; - case ID('O', 'R', 'N'): return "ORION ELECTRIC CO., LTD."; - case ID('O', 'T', 'M'): return "Optoma Corporation"; - case ID('O', 'V', 'R'): return "Oculus VR, Inc."; - case ID('P', 'H', 'L'): return "Philips Consumer Electronics Company"; - case ID('P', 'I', 'O'): return "Pioneer Electronic Corporation"; - case ID('P', 'N', 'R'): return "Planar Systems, Inc."; - case ID('Q', 'D', 'S'): return "Quanta Display Inc."; - case ID('S', 'A', 'M'): return "Samsung Electric Company"; - case ID('S', 'E', 'C'): return "Seiko Epson Corporation"; - case ID('S', 'H', 'P'): return "Sharp Corporation"; - case ID('S', 'I', 'I'): return "Silicon Image, Inc."; - case ID('S', 'N', 'Y'): return "Sony"; - case ID('T', 'O', 'P'): return "Orion Communications Co., Ltd."; - case ID('T', 'S', 'B'): return "Toshiba America Info Systems Inc"; - case ID('T', 'S', 'T'): return "Transtream Inc"; - case ID('U', 'N', 'K'): return "Unknown"; - case ID('V', 'I', 'Z'): return "VIZIO, Inc"; - case ID('V', 'S', 'C'): return "ViewSonic Corporation"; - case ID('Y', 'M', 'H'): return "Yamaha Corporation"; - default: return "Unknown"; - } -#undef ID -} - -/* See https://en.wikipedia.org/wiki/Extended_Display_Identification_Data for layout of EDID data. - * We don't parse the EDID properly. We just expect to receive valid data. - */ -static void parse_edid(struct wlr_output *restrict output, size_t len, const uint8_t *data) { - if (!data || len < 128) { - snprintf(output->make, sizeof(output->make), "<Unknown>"); - snprintf(output->model, sizeof(output->model), "<Unknown>"); - return; - } - - uint16_t id = (data[8] << 8) | data[9]; - snprintf(output->make, sizeof(output->make), "%s", get_manufacturer(id)); - - output->phys_width = ((data[68] & 0xf0) << 4) | data[66]; - output->phys_height = ((data[68] & 0x0f) << 8) | data[67]; - - for (size_t i = 72; i <= 108; i += 18) { - uint16_t flag = (data[i] << 8) | data[i + 1]; - if (flag == 0 && data[i + 3] == 0xFC) { - sprintf(output->model, "%.13s", &data[i + 5]); - - // Monitor names are terminated by newline if they're too short - char *nl = strchr(output->model, '\n'); - if (nl) { - *nl = '\0'; - } - - break; - } - } -} - static const int32_t subpixel_map[] = { [DRM_MODE_SUBPIXEL_UNKNOWN] = WL_OUTPUT_SUBPIXEL_UNKNOWN, [DRM_MODE_SUBPIXEL_HORIZONTAL_RGB] = WL_OUTPUT_SUBPIXEL_HORIZONTAL_RGB, @@ -934,7 +658,7 @@ void wlr_drm_scan_connectors(struct wlr_backend_state *drm) { output->base->phys_height = conn->mmHeight; output->base->subpixel = subpixel_map[conn->subpixel]; snprintf(output->base->name, sizeof(output->base->name), "%s-%"PRIu32, - conn_name[conn->connector_type], + conn_get_name(conn->connector_type), conn->connector_type_id); wlr_drm_get_connector_props(drm->fd, output->connector, &output->props); |