1/* 2 * va_wayland.c - Wayland API 3 * 4 * Copyright (c) 2012 Intel Corporation. All Rights Reserved. 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a 7 * copy of this software and associated documentation files (the 8 * "Software"), to deal in the Software without restriction, including 9 * without limitation the rights to use, copy, modify, merge, publish, 10 * distribute, sub license, and/or sell copies of the Software, and to 11 * permit persons to whom the Software is furnished to do so, subject to 12 * the following conditions: 13 * 14 * The above copyright notice and this permission notice (including the 15 * next paragraph) shall be included in all copies or substantial portions 16 * of the Software. 17 * 18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. 21 * IN NO EVENT SHALL INTEL AND/OR ITS SUPPLIERS BE LIABLE FOR 22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, 23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE 24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 25 */ 26 27#include "sysdeps.h" 28#include <stdarg.h> 29#include "va_wayland.h" 30#include "va_wayland_drm.h" 31#include "va_wayland_emgd.h" 32#include "va_wayland_private.h" 33#include "va_backend.h" 34#include "va_backend_wayland.h" 35 36static inline VADriverContextP 37get_driver_context(VADisplay dpy) 38{ 39 if (!vaDisplayIsValid(dpy)) 40 return NULL; 41 return ((VADisplayContextP)dpy)->pDriverContext; 42} 43 44void 45va_wayland_error(const char *format, ...) 46{ 47 va_list args; 48 49 va_start(args, format); 50 fprintf(stderr, "VA error: wayland: "); 51 vfprintf(stderr, format, args); 52 fprintf(stderr, "\n"); 53 va_end(args); 54} 55 56static int 57va_DisplayContextIsValid(VADisplayContextP pDisplayContext) 58{ 59 VADriverContextP const pDriverContext = pDisplayContext->pDriverContext; 60 61 return (pDriverContext && 62 pDriverContext->display_type == VA_DISPLAY_WAYLAND); 63} 64 65static void 66va_DisplayContextDestroy(VADisplayContextP pDisplayContext) 67{ 68 VADriverContextP pDriverContext; 69 VADisplayContextWaylandP pDisplayContextWl; 70 71 if (!pDisplayContext) 72 return; 73 74 pDisplayContextWl = pDisplayContext->opaque; 75 if (pDisplayContextWl && pDisplayContextWl->destroy) 76 pDisplayContextWl->destroy(pDisplayContext); 77 78 pDriverContext = pDisplayContext->pDriverContext; 79 if (pDriverContext) { 80 free(pDriverContext->vtable_wayland); 81 pDriverContext->vtable_wayland = NULL; 82 free(pDriverContext); 83 pDisplayContext->pDriverContext = NULL; 84 } 85 86 free(pDisplayContext->opaque); 87 pDisplayContext->opaque = NULL; 88 free(pDisplayContext); 89} 90 91static VAStatus 92va_DisplayContextGetDriverName(VADisplayContextP pDisplayContext, char **name) 93{ 94 *name = NULL; 95 return VA_STATUS_ERROR_UNKNOWN; 96} 97 98/* -------------------------------------------------------------------------- */ 99/* --- Public interface --- */ 100/* -------------------------------------------------------------------------- */ 101 102struct va_wayland_backend { 103 VADisplayContextCreateFunc create; 104 VADisplayContextDestroyFunc destroy; 105}; 106 107static const struct va_wayland_backend g_backends[] = { 108 { va_wayland_drm_create, 109 va_wayland_drm_destroy }, 110 { va_wayland_emgd_create, 111 va_wayland_emgd_destroy }, 112 { NULL, } 113}; 114 115VADisplay 116vaGetDisplayWl(struct wl_display *display) 117{ 118 VADisplayContextP pDisplayContext = NULL; 119 VADriverContextP pDriverContext; 120 struct VADriverVTableWayland *vtable; 121 unsigned int i; 122 123 pDisplayContext = calloc(1, sizeof(*pDisplayContext)); 124 if (!pDisplayContext) 125 return NULL; 126 127 pDisplayContext->vadpy_magic = VA_DISPLAY_MAGIC; 128 pDisplayContext->vaIsValid = va_DisplayContextIsValid; 129 pDisplayContext->vaDestroy = va_DisplayContextDestroy; 130 pDisplayContext->vaGetDriverName = va_DisplayContextGetDriverName; 131 132 pDriverContext = calloc(1, sizeof(*pDriverContext)); 133 if (!pDriverContext) 134 goto error; 135 pDisplayContext->pDriverContext = pDriverContext; 136 137 pDriverContext->native_dpy = display; 138 pDriverContext->display_type = VA_DISPLAY_WAYLAND; 139 140 vtable = calloc(1, sizeof(*vtable)); 141 if (!vtable) 142 goto error; 143 pDriverContext->vtable_wayland = vtable; 144 145 vtable->version = VA_WAYLAND_API_VERSION; 146 147 for (i = 0; g_backends[i].create != NULL; i++) { 148 if (g_backends[i].create(pDisplayContext)) 149 break; 150 g_backends[i].destroy(pDisplayContext); 151 } 152 153 return (VADisplay)pDisplayContext; 154 155error: 156 va_DisplayContextDestroy(pDisplayContext); 157 return NULL; 158} 159 160VAStatus 161vaGetSurfaceBufferWl( 162 VADisplay dpy, 163 VASurfaceID surface, 164 unsigned int flags, 165 struct wl_buffer **out_buffer 166) 167{ 168 VADriverContextP const ctx = get_driver_context(dpy); 169 170 if (!ctx) 171 return VA_STATUS_ERROR_INVALID_DISPLAY; 172 if (!ctx->vtable_wayland || !ctx->vtable_wayland->vaGetSurfaceBufferWl) 173 return VA_STATUS_ERROR_UNIMPLEMENTED; 174 return ctx->vtable_wayland->vaGetSurfaceBufferWl(ctx, surface, flags, 175 out_buffer); 176} 177 178VAStatus 179vaGetImageBufferWl( 180 VADisplay dpy, 181 VAImageID image, 182 unsigned int flags, 183 struct wl_buffer **out_buffer 184) 185{ 186 VADriverContextP const ctx = get_driver_context(dpy); 187 188 if (!ctx) 189 return VA_STATUS_ERROR_INVALID_DISPLAY; 190 if (!ctx->vtable_wayland || !ctx->vtable_wayland->vaGetImageBufferWl) 191 return VA_STATUS_ERROR_UNIMPLEMENTED; 192 return ctx->vtable_wayland->vaGetImageBufferWl(ctx, image, flags, 193 out_buffer); 194} 195