From: Jactry Zeng jzeng@codeweavers.com
Neither IOAVServiceCopyEDID() nor "IODisplayEDID" is available for Apple Silicon MacBook's built-in screen, let's try to generate EDID data based on display parameters from Core Graphics APIs. This isn't perfect since some parameters are missing, but at least it satisfies some Unreal games. --- dlls/winemac.drv/cocoa_display.m | 195 +++++++++++++++++++++++++++++++ 1 file changed, 195 insertions(+)
diff --git a/dlls/winemac.drv/cocoa_display.m b/dlls/winemac.drv/cocoa_display.m index 9e0f0f2785c..faa2b426867 100644 --- a/dlls/winemac.drv/cocoa_display.m +++ b/dlls/winemac.drv/cocoa_display.m @@ -688,6 +688,199 @@ static CFDataRef get_edid_from_io_display_edid(uint32_t vendor_number, uint32_t return data; }
+static uint16_t get_manufacturer_from_vendor(uint32_t vendor) +{ + uint16_t manufacturer = 0; + + manufacturer |= ((vendor >> 10) & 0x1f) << 10; + manufacturer |= ((vendor >> 5) & 0x1f) << 5; + manufacturer |= (vendor & 0x1f); + manufacturer = (manufacturer >> 8) | (manufacturer << 8); + return manufacturer; +} + +static void fill_detailed_timing_desc(uint8_t *data, int horizontal, int vertical, + double refresh, size_t mwidth, size_t mheight) +{ + int h_front_porch = 8, h_sync_pulse = 32, h_back_porch = 40; + int v_front_porch = 6, v_sync_pulse = 8, v_back_porch = 40; + int h_blanking, v_blanking, h_total, v_total, pixel_clock; + + h_blanking = h_front_porch + h_sync_pulse + h_back_porch; + v_blanking = v_front_porch + v_sync_pulse + v_back_porch; + h_total = horizontal + h_blanking; + v_total = vertical + v_blanking; + + if (refresh <= 0.0) refresh = 60.0; + pixel_clock = (int)round(h_total * v_total * refresh / 10000.0); + + memset(data, 0, 18); + data[0] = pixel_clock & 0xff; + data[1] = (pixel_clock >> 8) & 0xff; + data[2] = horizontal; + data[3] = h_total - horizontal; + data[4] = (((h_total - horizontal) >> 8) & 0xf) | (((horizontal >> 8) & 0xf) << 4); + data[5] = vertical; + data[6] = v_total - vertical; + data[7] = (((v_total - vertical) >> 8) & 0xf) | (((vertical >> 8) & 0xf) << 4); + data[8] = h_front_porch; + data[9] = h_sync_pulse; + data[10] = ((v_front_porch & 0xf) << 4) | (v_sync_pulse & 0xf); + data[11] = (((h_front_porch >> 8) & 3) << 6) + | (((h_sync_pulse >> 8) & 3) << 4) + | (((v_front_porch >> 4) & 3) << 2) + | ((v_sync_pulse >> 4) & 3); + data[12] = mwidth; + data[13] = mheight; + data[14] = (((mwidth >> 8) & 0xf) << 4) | ((mheight >> 8) & 0xf); + data[17] = 0x1e; +} + +static CFDataRef generate_edid(CGDirectDisplayID display_id, uint32_t vendor_number, uint32_t model_number, + uint32_t serial_number) +{ + struct display_param { + size_t width; + size_t height; + double refresh; + } best_params[3]; + double mwidth, mheight, refresh; + CGDisplayModeRef mode = NULL; + size_t width = 0, height = 0; + uint8_t edid[128], sum, *p; + CFDataRef data = NULL; + int i, j, timings = 0; + CGSize screen_size; + CFArrayRef modes; + + screen_size = CGDisplayScreenSize(display_id); + mwidth = screen_size.width; + mheight = screen_size.height; + + memset(&edid, 0, sizeof(edid)); + *(uint64_t *)&edid[0] = 0x00ffffffffffff00; + + *(uint16_t *)&edid[8] = get_manufacturer_from_vendor(vendor_number); + *(uint16_t *)&edid[10] = (uint16_t)model_number; + *(uint32_t *)&edid[12] = serial_number; + edid[16] = 52; /* weeks */ + edid[17] = 30; /* year */ + edid[18] = 1; /* version */ + edid[19] = 4; /* revision */ + edid[20] = 0xb5; /* video input parameters: 10 bits DisplayPort */ + edid[21] = (uint8_t)(mwidth / 10.0); /* horizontal screen size in cm */ + edid[22] = (uint8_t)(mheight / 10.0); /* vertical screen size in cm */ + edid[23] = 0x78; /* gamma: 2.2 */ + edid[24] = 0x06; /* supported features: RGB 4:4:4, sRGB, native pixel format and refresh rate */ + + /* color characteristics: sRGB */ + edid[25] = 0xee; + edid[26] = 0x91; + edid[27] = 0xa3; + edid[28] = 0x54; + edid[29] = 0x4c; + edid[30] = 0x99; + edid[31] = 0x26; + edid[32] = 0x0f; + edid[33] = 0x50; + edid[34] = 0x54; + + for (i = 0; i < 16; ++i) edid[38 + i] = 1; + + /* detailed timing descriptors */ + p = edid + 54; + modes = CGDisplayCopyAllDisplayModes(display_id, NULL); + if (modes) + i = CFArrayGetCount(modes); + else + i = 0; + for (i--; i >= 0; i--) + { + CGDisplayModeRef candidate_mode = (CGDisplayModeRef)CFArrayGetValueAtIndex(modes, i); + int flags = CGDisplayModeGetIOFlags(candidate_mode); + if (flags & kDisplayModeNativeFlag || flags & kDisplayModeDefaultFlag) + { + width = CGDisplayModeGetPixelWidth(candidate_mode); + height = CGDisplayModeGetPixelHeight(candidate_mode); + refresh = CGDisplayModeGetRefreshRate(candidate_mode); + if (!timings) + { + best_params[0].width = width; + best_params[0].height = height; + best_params[0].refresh = refresh; + timings++; + } + else + { + for (j = 0; j < timings; j++) + { + if (best_params[j].width < width || + (best_params[j].width == width && best_params[j].refresh < refresh)) + { + struct display_param swap_display_param = best_params[j]; + + best_params[j].width = width; + best_params[j].height = height; + best_params[j].refresh = refresh; + width = swap_display_param.width; + height = swap_display_param.height; + refresh = swap_display_param.refresh; + } + } + if (timings != 3) + { + best_params[timings].width = width; + best_params[timings].height = height; + best_params[timings].refresh = refresh; + timings++; + } + } + } + } + if (modes) + CFRelease(modes); + if (!timings) + { + mode = CGDisplayCopyDisplayMode(display_id); + width = CGDisplayModeGetPixelWidth(mode); + height = CGDisplayModeGetPixelHeight(mode); + refresh = CGDisplayModeGetRefreshRate(mode); + fill_detailed_timing_desc(p, width, height, refresh, (size_t)mwidth, (size_t)mheight); + timings++; + CGDisplayModeRelease(mode); + } + else + { + for (i = 0; i < timings; i++) + { + fill_detailed_timing_desc(p, best_params[i].width, best_params[i].height, + best_params[i].refresh, (size_t)mwidth, (size_t)mheight); + p += 18; + p[3] = 0x10; + } + } + while (timings != 3) + { + p += 18; + p[3] = 0x10; + timings++; + } + + /* display product name */ + p[3] = 0xfc; + strcpy((char *)p + 5, "Wine Monitor"); + p[17] = 0x0a; + + /* checksum */ + sum = 0; + for (i = 0; i < 127; ++i) + sum += edid[i]; + edid[127] = 256 - sum; + + data = CFDataCreate(NULL, edid, 128); + return data; +} + /*********************************************************************** * macdrv_get_monitors * @@ -771,6 +964,8 @@ int macdrv_get_monitors(CGDirectDisplayID adapter_id, struct macdrv_monitor** ne edid_data = get_edid_from_dcpav_service_proxy(vendor_number, model_number, serial_number); if (!edid_data) edid_data = get_edid_from_io_display_edid(vendor_number, model_number, serial_number); + if (!edid_data) + edid_data = generate_edid(monitors[monitor_count].id, vendor_number, model_number, serial_number); if (edid_data && (length = CFDataGetLength(edid_data))) { const unsigned char *edid_ptr = CFDataGetBytePtr(edid_data);