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authorScott Anderson <ascent12@hotmail.com>2017-09-30 19:03:34 +1300
committerScott Anderson <ascent12@hotmail.com>2017-09-30 19:03:34 +1300
commit610b0493ac4a3bbde44378adf855c7202b1e59c4 (patch)
treef7425e1e87906b6f18427b46f9176cfd6511dabe /backend/drm/drm-util.c
parentc8a8ff66f2bdeab0623c11c1c381b52bc41fbf0d (diff)
Rename files to remove pointless drm prefix
Diffstat (limited to 'backend/drm/drm-util.c')
-rw-r--r--backend/drm/drm-util.c303
1 files changed, 0 insertions, 303 deletions
diff --git a/backend/drm/drm-util.c b/backend/drm/drm-util.c
deleted file mode 100644
index 0f8ee18c..00000000
--- a/backend/drm/drm-util.c
+++ /dev/null
@@ -1,303 +0,0 @@
-#include <stdio.h>
-#include <string.h>
-#include <drm.h>
-#include <drm_mode.h>
-#include <gbm.h>
-#include "backend/drm-util.h"
-#include <wlr/util/log.h>
-
-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.
- */
-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;
- }
- }
-}
-
-const char *conn_get_name(uint32_t type_id) {
- switch (type_id) {
- case DRM_MODE_CONNECTOR_Unknown: return "Unknown";
- case DRM_MODE_CONNECTOR_VGA: return "VGA";
- case DRM_MODE_CONNECTOR_DVII: return "DVI-I";
- case DRM_MODE_CONNECTOR_DVID: return "DVI-D";
- case DRM_MODE_CONNECTOR_DVIA: return "DVI-A";
- case DRM_MODE_CONNECTOR_Composite: return "Composite";
- case DRM_MODE_CONNECTOR_SVIDEO: return "SVIDEO";
- case DRM_MODE_CONNECTOR_LVDS: return "LVDS";
- case DRM_MODE_CONNECTOR_Component: return "Component";
- case DRM_MODE_CONNECTOR_9PinDIN: return "DIN";
- case DRM_MODE_CONNECTOR_DisplayPort: return "DP";
- case DRM_MODE_CONNECTOR_HDMIA: return "HDMI-A";
- case DRM_MODE_CONNECTOR_HDMIB: return "HDMI-B";
- case DRM_MODE_CONNECTOR_TV: return "TV";
- case DRM_MODE_CONNECTOR_eDP: return "eDP";
- case DRM_MODE_CONNECTOR_VIRTUAL: return "Virtual";
- case DRM_MODE_CONNECTOR_DSI: return "DSI";
- default: return "Unknown";
- }
-}
-
-static void free_fb(struct gbm_bo *bo, void *data) {
- uint32_t id = (uintptr_t)data;
-
- if (id) {
- struct gbm_device *gbm = gbm_bo_get_device(bo);
- drmModeRmFB(gbm_device_get_fd(gbm), id);
- }
-}
-
-uint32_t get_fb_for_bo(struct gbm_bo *bo) {
- uint32_t id = (uintptr_t)gbm_bo_get_user_data(bo);
- if (id) {
- return id;
- }
-
- struct gbm_device *gbm = gbm_bo_get_device(bo);
-
- int fd = gbm_device_get_fd(gbm);
- uint32_t width = gbm_bo_get_width(bo);
- uint32_t height = gbm_bo_get_height(bo);
- uint32_t handles[4] = {gbm_bo_get_handle(bo).u32};
- uint32_t pitches[4] = {gbm_bo_get_stride(bo)};
- uint32_t offsets[4] = {gbm_bo_get_offset(bo, 0)};
- uint32_t format = gbm_bo_get_format(bo);
-
- if (drmModeAddFB2(fd, width, height, format, handles, pitches, offsets, &id, 0)) {
- wlr_log_errno(L_ERROR, "Unable to add DRM framebuffer");
- }
-
- gbm_bo_set_user_data(bo, (void *)(uintptr_t)id, free_fb);
-
- return id;
-}
-
-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;
- }
- }
- 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;
-};
-
-/*
- * 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);
-}
-
-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;
-}