1/*
2 * Copyright © 2020 Raspberry Pi
3 * based on intel anv code:
4 * Copyright © 2015 Intel Corporation
5
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the "Software"),
8 * to deal in the Software without restriction, including without limitation
9 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10 * and/or sell copies of the Software, and to permit persons to whom the
11 * Software is furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice (including the next
14 * paragraph) shall be included in all copies or substantial portions of the
15 * Software.
16 *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
20 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
22 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
23 * IN THE SOFTWARE.
24 */
25
26#include "v3dv_private.h"
27#include "drm-uapi/drm_fourcc.h"
28#include "wsi_common_entrypoints.h"
29#include "vk_format_info.h"
30#include "vk_util.h"
31#include "wsi_common.h"
32
33static VKAPI_ATTR PFN_vkVoidFunction VKAPI_CALL
34v3dv_wsi_proc_addr(VkPhysicalDevice physicalDevice, const char *pName)
35{
36   V3DV_FROM_HANDLE(v3dv_physical_device, pdevice, physicalDevice);
37   PFN_vkVoidFunction func;
38
39   func = vk_instance_dispatch_table_get(&pdevice->vk.instance->dispatch_table, pName);
40   if (func != NULL)
41      return func;
42
43   func = vk_physical_device_dispatch_table_get(&pdevice->vk.dispatch_table, pName);
44   if (func != NULL)
45      return func;
46
47   return vk_device_dispatch_table_get(&vk_device_trampolines, pName);
48}
49
50static bool
51v3dv_wsi_can_present_on_device(VkPhysicalDevice _pdevice, int fd)
52{
53   V3DV_FROM_HANDLE(v3dv_physical_device, pdevice, _pdevice);
54
55   drmDevicePtr fd_devinfo, display_devinfo;
56   int ret;
57
58   ret = drmGetDevice2(fd, 0, &fd_devinfo);
59   if (ret)
60      return false;
61
62   ret = drmGetDevice2(pdevice->display_fd, 0, &display_devinfo);
63   if (ret) {
64      drmFreeDevice(&fd_devinfo);
65      return false;
66   }
67
68   bool result = drmDevicesEqual(fd_devinfo, display_devinfo);
69
70   drmFreeDevice(&fd_devinfo);
71   drmFreeDevice(&display_devinfo);
72   return result;
73}
74
75VkResult
76v3dv_wsi_init(struct v3dv_physical_device *physical_device)
77{
78   VkResult result;
79
80   result = wsi_device_init(&physical_device->wsi_device,
81                            v3dv_physical_device_to_handle(physical_device),
82                            v3dv_wsi_proc_addr,
83                            &physical_device->vk.instance->alloc,
84                            physical_device->master_fd, NULL, false);
85
86   if (result != VK_SUCCESS)
87      return result;
88
89   physical_device->wsi_device.supports_modifiers = true;
90   physical_device->wsi_device.can_present_on_device =
91      v3dv_wsi_can_present_on_device;
92
93   physical_device->vk.wsi_device = &physical_device->wsi_device;
94
95   return VK_SUCCESS;
96}
97
98void
99v3dv_wsi_finish(struct v3dv_physical_device *physical_device)
100{
101   physical_device->vk.wsi_device = NULL;
102   wsi_device_finish(&physical_device->wsi_device,
103                     &physical_device->vk.instance->alloc);
104}
105
106static void
107constraint_surface_capabilities(VkSurfaceCapabilitiesKHR *caps)
108{
109   /* Our display pipeline requires that images are linear, so we cannot
110    * ensure that our swapchain images can be sampled. If we are running under
111    * a compositor in windowed mode, the DRM modifier negotiation should
112    * probably end up selecting an UIF layout for the swapchain images but it
113    * may still choose linear and send images directly for scanout if the
114    * surface is in fullscreen mode for example. If we are not running under
115    * a compositor, then we would always need them to be linear anyway.
116    */
117   caps->supportedUsageFlags &= ~VK_IMAGE_USAGE_SAMPLED_BIT;
118}
119
120VKAPI_ATTR VkResult VKAPI_CALL
121v3dv_GetPhysicalDeviceSurfaceCapabilitiesKHR(
122    VkPhysicalDevice                            physicalDevice,
123    VkSurfaceKHR                                surface,
124    VkSurfaceCapabilitiesKHR*                   pSurfaceCapabilities)
125{
126   VkResult result;
127   result = wsi_GetPhysicalDeviceSurfaceCapabilitiesKHR(physicalDevice,
128                                                        surface,
129                                                        pSurfaceCapabilities);
130   constraint_surface_capabilities(pSurfaceCapabilities);
131   return result;
132}
133
134VKAPI_ATTR VkResult VKAPI_CALL
135v3dv_GetPhysicalDeviceSurfaceCapabilities2KHR(
136    VkPhysicalDevice                            physicalDevice,
137    const VkPhysicalDeviceSurfaceInfo2KHR*      pSurfaceInfo,
138    VkSurfaceCapabilities2KHR*                  pSurfaceCapabilities)
139{
140   VkResult result;
141   result = wsi_GetPhysicalDeviceSurfaceCapabilities2KHR(physicalDevice,
142                                                         pSurfaceInfo,
143                                                         pSurfaceCapabilities);
144   constraint_surface_capabilities(&pSurfaceCapabilities->surfaceCapabilities);
145   return result;
146}
147
148VKAPI_ATTR VkResult VKAPI_CALL
149v3dv_CreateSwapchainKHR(
150    VkDevice                                     _device,
151    const VkSwapchainCreateInfoKHR*              pCreateInfo,
152    const VkAllocationCallbacks*                 pAllocator,
153    VkSwapchainKHR*                              pSwapchain)
154{
155   V3DV_FROM_HANDLE(v3dv_device, device, _device);
156   struct v3dv_instance *instance = device->instance;
157   struct v3dv_physical_device *pdevice = &instance->physicalDevice;
158
159   ICD_FROM_HANDLE(VkIcdSurfaceBase, surface, pCreateInfo->surface);
160   VkResult result =
161      v3dv_physical_device_acquire_display(instance, pdevice, surface);
162   if (result != VK_SUCCESS)
163      return result;
164
165   return wsi_CreateSwapchainKHR(_device, pCreateInfo, pAllocator, pSwapchain);
166}
167
168struct v3dv_image *
169v3dv_wsi_get_image_from_swapchain(VkSwapchainKHR swapchain, uint32_t index)
170{
171   uint32_t n_images = index + 1;
172   VkImage *images = malloc(sizeof(*images) * n_images);
173   VkResult result = wsi_common_get_images(swapchain, &n_images, images);
174
175   if (result != VK_SUCCESS && result != VK_INCOMPLETE) {
176      free(images);
177      return NULL;
178   }
179
180   V3DV_FROM_HANDLE(v3dv_image, image, images[index]);
181   free(images);
182
183   return image;
184}
185
186VKAPI_ATTR VkResult VKAPI_CALL
187v3dv_AcquireNextImage2KHR(
188    VkDevice                                     _device,
189    const VkAcquireNextImageInfoKHR*             pAcquireInfo,
190    uint32_t*                                    pImageIndex)
191{
192   V3DV_FROM_HANDLE(v3dv_device, device, _device);
193   V3DV_FROM_HANDLE(v3dv_fence, fence, pAcquireInfo->fence);
194   V3DV_FROM_HANDLE(v3dv_semaphore, semaphore, pAcquireInfo->semaphore);
195
196   struct v3dv_physical_device *pdevice = &device->instance->physicalDevice;
197
198   VkResult result;
199   result = wsi_common_acquire_next_image2(&pdevice->wsi_device, _device,
200                                           pAcquireInfo, pImageIndex);
201
202   if (result == VK_SUCCESS || result == VK_SUBOPTIMAL_KHR) {
203      if (fence)
204         drmSyncobjSignal(pdevice->render_fd, &fence->sync, 1);
205      if (semaphore)
206         drmSyncobjSignal(pdevice->render_fd, &semaphore->sync, 1);
207   }
208
209   return result;
210}
211