src/gallium/state_trackers/egl/common/egl_g3d_image.c

   1 /*
   2  * Mesa 3-D graphics library
   3  * Version:  7.8
   4  *
   5  * Copyright (C) 2010 LunarG Inc.
   6  *
   7  * Permission is hereby granted, free of charge, to any person obtaining a
   8  * copy of this software and associated documentation files (the "Software"),
   9  * to deal in the Software without restriction, including without limitation
  10  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  11  * and/or sell copies of the Software, and to permit persons to whom the
  12  * Software is furnished to do so, subject to the following conditions:
  13  *
  14  * The above copyright notice and this permission notice shall be included
  15  * in all copies or substantial portions of the 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
  23  * DEALINGS IN THE SOFTWARE.
  24  *
  25  * Authors:
  26  *    Chia-I Wu <olv@lunarg.com>
  27  */
  28
  29 #include "pipe/p_screen.h"
  30 #include "util/u_memory.h"
  31 #include "util/u_rect.h"
  32 #include "util/u_inlines.h"
  33 #include "eglcurrent.h"
  34 #include "egllog.h"
  35
  36 #include "native.h"
  37 #include "egl_g3d.h"
  38 #include "egl_g3d_api.h"
  39 #include "egl_g3d_image.h"
  40
  41 /* for struct winsys_handle */
  42 #include "state_tracker/drm_driver.h"
  43
  44 /**
  45  * Reference and return the front left buffer of the native pixmap.
  46  */
  47 static struct pipe_resource *
  48 egl_g3d_reference_native_pixmap(_EGLDisplay *dpy, EGLNativePixmapType pix)
  49 {
  50    struct egl_g3d_display *gdpy = egl_g3d_display(dpy);
  51    struct egl_g3d_config *gconf;
  52    struct native_surface *nsurf;
  53    struct pipe_resource *textures[NUM_NATIVE_ATTACHMENTS];
  54    enum native_attachment natt;
  55
  56    gconf = egl_g3d_config(egl_g3d_find_pixmap_config(dpy, pix));
  57    if (!gconf)
  58       return NULL;
  59
  60    nsurf = gdpy->native->create_pixmap_surface(gdpy->native,
  61          pix, gconf->native);
  62    if (!nsurf)
  63       return NULL;
  64
  65    natt = NATIVE_ATTACHMENT_FRONT_LEFT;
  66    if (!nsurf->validate(nsurf, 1 << natt, NULL, textures, NULL, NULL))
  67       textures[natt] = NULL;
  68
  69    nsurf->destroy(nsurf);
  70
  71    return textures[natt];
  72 }
  73
  74 #ifdef EGL_MESA_drm_image
  75
  76 static struct pipe_resource *
  77 egl_g3d_create_drm_buffer(_EGLDisplay *dpy, _EGLImage *img,
  78                           const EGLint *attribs)
  79 {
  80    struct egl_g3d_display *gdpy = egl_g3d_display(dpy);
  81    struct pipe_screen *screen = gdpy->native->screen;
  82    struct pipe_resource templ;
  83    _EGLImageAttribs attrs;
  84    EGLint format, valid_use;
  85
  86    if (_eglParseImageAttribList(&attrs, dpy, attribs) != EGL_SUCCESS)
  87       return NULL;
  88
  89    if (attrs.Width <= 0 || attrs.Height <= 0) {
  90       _eglLog(_EGL_DEBUG, "bad width or height (%dx%d)",
  91             attrs.Width, attrs.Height);
  92       return NULL;
  93    }
  94
  95    switch (attrs.DRMBufferFormatMESA) {
  96    case EGL_DRM_BUFFER_FORMAT_ARGB32_MESA:
  97       format = PIPE_FORMAT_B8G8R8A8_UNORM;
  98       break;
  99    default:
 100       _eglLog(_EGL_DEBUG, "bad image format value 0x%04x",
 101             attrs.DRMBufferFormatMESA);
 102       return NULL;
 103       break;
 104    }
 105
 106    valid_use = EGL_DRM_BUFFER_USE_SCANOUT_MESA |
 107                EGL_DRM_BUFFER_USE_SHARE_MESA;
 108    if (attrs.DRMBufferUseMESA & ~valid_use) {
 109       _eglLog(_EGL_DEBUG, "bad image use bit 0x%04x",
 110             attrs.DRMBufferUseMESA);
 111       return NULL;
 112    }
 113
 114    memset(&templ, 0, sizeof(templ));
 115    templ.target = PIPE_TEXTURE_2D;
 116    templ.format = format;
 117    templ.bind = PIPE_BIND_RENDER_TARGET | PIPE_BIND_SAMPLER_VIEW;
 118    templ.width0 = attrs.Width;
 119    templ.height0 = attrs.Height;
 120    templ.depth0 = 1;
 121
 122    /*
 123     * XXX fix apps (e.g. wayland) and pipe drivers (e.g. i915) and remove the
 124     * size check
 125     */
 126    if ((attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_SCANOUT_MESA) &&
 127        attrs.Width >= 640 && attrs.Height >= 480)
 128       templ.bind |= PIPE_BIND_SCANOUT;
 129    if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_SHARE_MESA)
 130       templ.bind |= PIPE_BIND_SHARED;
 131
 132    return screen->resource_create(screen, &templ);
 133 }
 134
 135 static struct pipe_resource *
 136 egl_g3d_reference_drm_buffer(_EGLDisplay *dpy, EGLint name,
 137                              _EGLImage *img, const EGLint *attribs)
 138 {
 139    struct egl_g3d_display *gdpy = egl_g3d_display(dpy);
 140    struct pipe_resource templ;
 141    struct winsys_handle wsh;
 142    _EGLImageAttribs attrs;
 143    EGLint format;
 144
 145    if (dpy->Platform != _EGL_PLATFORM_DRM)
 146       return NULL;
 147
 148    if (_eglParseImageAttribList(&attrs, dpy, attribs) != EGL_SUCCESS)
 149       return NULL;
 150
 151    if (attrs.Width <= 0 || attrs.Height <= 0 ||
 152        attrs.DRMBufferStrideMESA <= 0) {
 153       _eglLog(_EGL_DEBUG, "bad width, height, or stride (%dx%dx%d)",
 154             attrs.Width, attrs.Height, attrs.DRMBufferStrideMESA);
 155       return NULL;
 156    }
 157
 158    switch (attrs.DRMBufferFormatMESA) {
 159    case EGL_DRM_BUFFER_FORMAT_ARGB32_MESA:
 160       format = PIPE_FORMAT_B8G8R8A8_UNORM;
 161       break;
 162    default:
 163       _eglLog(_EGL_DEBUG, "bad image format value 0x%04x",
 164             attrs.DRMBufferFormatMESA);
 165       return NULL;
 166       break;
 167    }
 168
 169    memset(&templ, 0, sizeof(templ));
 170    templ.target = PIPE_TEXTURE_2D;
 171    templ.format = format;
 172    templ.bind = PIPE_BIND_RENDER_TARGET | PIPE_BIND_SAMPLER_VIEW;
 173    templ.width0 = attrs.Width;
 174    templ.height0 = attrs.Height;
 175    templ.depth0 = 1;
 176
 177    memset(&wsh, 0, sizeof(wsh));
 178    wsh.handle = (unsigned) name;
 179    wsh.stride =
 180       attrs.DRMBufferStrideMESA * util_format_get_blocksize(templ.format);
 181
 182    return gdpy->native->buffer->import_buffer(gdpy->native, &templ, &wsh);
 183 }
 184
 185 #endif /* EGL_MESA_drm_image */
 186
 187 _EGLImage *
 188 egl_g3d_create_image(_EGLDriver *drv, _EGLDisplay *dpy, _EGLContext *ctx,
 189                      EGLenum target, EGLClientBuffer buffer,
 190                      const EGLint *attribs)
 191 {
 192    struct pipe_resource *ptex;
 193    struct egl_g3d_image *gimg;
 194    unsigned level = 0, layer = 0;
 195
 196    gimg = CALLOC_STRUCT(egl_g3d_image);
 197    if (!gimg) {
 198       _eglError(EGL_BAD_ALLOC, "eglCreateEGLImageKHR");
 199       return NULL;
 200    }
 201
 202    if (!_eglInitImage(&gimg->base, dpy)) {
 203       FREE(gimg);
 204       return NULL;
 205    }
 206
 207    switch (target) {
 208    case EGL_NATIVE_PIXMAP_KHR:
 209       ptex = egl_g3d_reference_native_pixmap(dpy,
 210             (EGLNativePixmapType) buffer);
 211       break;
 212 #ifdef EGL_MESA_drm_image
 213    case EGL_DRM_BUFFER_MESA:
 214       ptex = egl_g3d_reference_drm_buffer(dpy,
 215             (EGLint) buffer, &gimg->base, attribs);
 216       break;
 217 #endif
 218    default:
 219       ptex = NULL;
 220       break;
 221    }
 222
 223    if (!ptex) {
 224       FREE(gimg);
 225       return NULL;
 226    }
 227
 228    if (level > ptex->last_level) {
 229       _eglError(EGL_BAD_MATCH, "eglCreateEGLImageKHR");
 230       pipe_resource_reference(&gimg->texture, NULL);
 231       FREE(gimg);
 232       return NULL;
 233    }
 234    if (layer >= (u_minify(ptex->depth0, level) + ptex->array_size - 1)) {
 235       _eglError(EGL_BAD_PARAMETER, "eglCreateEGLImageKHR");
 236       pipe_resource_reference(&gimg->texture, NULL);
 237       FREE(gimg);
 238       return NULL;
 239    }
 240
 241    /* transfer the ownership to the image */
 242    gimg->texture = ptex;
 243    gimg->level = level;
 244    gimg->layer = layer;
 245
 246    return &gimg->base;
 247 }
 248
 249 EGLBoolean
 250 egl_g3d_destroy_image(_EGLDriver *drv, _EGLDisplay *dpy, _EGLImage *img)
 251 {
 252    struct egl_g3d_image *gimg = egl_g3d_image(img);
 253
 254    pipe_resource_reference(&gimg->texture, NULL);
 255    FREE(gimg);
 256
 257    return EGL_TRUE;
 258 }
 259
 260 _EGLImage *
 261 egl_g3d_create_drm_image(_EGLDriver *drv, _EGLDisplay *dpy,
 262                          const EGLint *attribs)
 263 {
 264    struct egl_g3d_image *gimg;
 265    struct pipe_resource *ptex;
 266
 267    gimg = CALLOC_STRUCT(egl_g3d_image);
 268    if (!gimg) {
 269       _eglError(EGL_BAD_ALLOC, "eglCreateDRMImageKHR");
 270       return NULL;
 271    }
 272
 273    if (!_eglInitImage(&gimg->base, dpy)) {
 274       FREE(gimg);
 275       return NULL;
 276    }
 277
 278 #ifdef EGL_MESA_drm_image
 279    ptex = egl_g3d_create_drm_buffer(dpy, &gimg->base, attribs);
 280 #else
 281    ptex = NULL;
 282 #endif
 283    if (!ptex) {
 284       FREE(gimg);
 285       return NULL;
 286    }
 287
 288    /* transfer the ownership to the image */
 289    gimg->texture = ptex;
 290    gimg->level = 0;
 291    gimg->layer = 0;
 292
 293    return &gimg->base;
 294 }
 295
 296 EGLBoolean
 297 egl_g3d_export_drm_image(_EGLDriver *drv, _EGLDisplay *dpy, _EGLImage *img,
 298                          EGLint *name, EGLint *handle, EGLint *stride)
 299 {
 300    struct egl_g3d_display *gdpy = egl_g3d_display(dpy);
 301    struct egl_g3d_image *gimg = egl_g3d_image(img);
 302    struct winsys_handle wsh;
 303
 304    if (dpy->Platform != _EGL_PLATFORM_DRM)
 305       return EGL_FALSE;
 306
 307    /* get shared handle */
 308    if (name) {
 309       memset(&handle, 0, sizeof(handle));
 310       wsh.type = DRM_API_HANDLE_TYPE_SHARED;
 311       if (!gdpy->native->buffer->export_buffer(gdpy->native,
 312                                                gimg->texture, &wsh))
 313          return EGL_FALSE;
 314
 315       *name = wsh.handle;
 316    }
 317
 318    /* get KMS handle */
 319    if (handle || stride) {
 320       memset(&wsh, 0, sizeof(wsh));
 321       wsh.type = DRM_API_HANDLE_TYPE_KMS;
 322       if (!gdpy->native->buffer->export_buffer(gdpy->native,
 323                                                gimg->texture, &wsh))
 324          return EGL_FALSE;
 325
 326       if (handle)
 327          *handle = wsh.handle;
 328       if (stride)
 329          *stride = wsh.stride;
 330    }
 331
 332    return EGL_TRUE;
 333 }