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_image.h"
  39
  40 /* for struct winsys_handle */
  41 #include "state_tracker/drm_driver.h"
  42
  43 /**
  44  * Reference and return the front left buffer of the native pixmap.
  45  */
  46 static struct pipe_resource *
  47 egl_g3d_reference_native_pixmap(_EGLDisplay *dpy, EGLNativePixmapType pix)
  48 {
  49    struct egl_g3d_display *gdpy = egl_g3d_display(dpy);
  50    struct native_surface *nsurf;
  51    struct pipe_resource *textures[NUM_NATIVE_ATTACHMENTS];
  52    enum native_attachment natt;
  53
  54    nsurf = gdpy->native->create_pixmap_surface(gdpy->native, pix, NULL);
  55    if (!nsurf)
  56       return NULL;
  57
  58    natt = NATIVE_ATTACHMENT_FRONT_LEFT;
  59    if (!nsurf->validate(nsurf, 1 << natt, NULL, textures, NULL, NULL))
  60       textures[natt] = NULL;
  61
  62    nsurf->destroy(nsurf);
  63
  64    return textures[natt];
  65 }
  66
  67 #ifdef EGL_MESA_drm_image
  68
  69 static struct pipe_resource *
  70 egl_g3d_create_drm_buffer(_EGLDisplay *dpy, _EGLImage *img,
  71                           const EGLint *attribs)
  72 {
  73    struct egl_g3d_display *gdpy = egl_g3d_display(dpy);
  74    struct pipe_screen *screen = gdpy->native->screen;
  75    struct pipe_resource templ;
  76    _EGLImageAttribs attrs;
  77    EGLint format, valid_use;
  78
  79    if (_eglParseImageAttribList(&attrs, dpy, attribs) != EGL_SUCCESS)
  80       return NULL;
  81
  82    if (attrs.Width <= 0 || attrs.Height <= 0) {
  83       _eglLog(_EGL_DEBUG, "bad width or height (%dx%d)",
  84             attrs.Width, attrs.Height);
  85       return NULL;
  86    }
  87
  88    switch (attrs.DRMBufferFormatMESA) {
  89    case EGL_DRM_BUFFER_FORMAT_ARGB32_MESA:
  90       format = PIPE_FORMAT_B8G8R8A8_UNORM;
  91       break;
  92    default:
  93       _eglLog(_EGL_DEBUG, "bad image format value 0x%04x",
  94             attrs.DRMBufferFormatMESA);
  95       return NULL;
  96       break;
  97    }
  98
  99    valid_use = EGL_DRM_BUFFER_USE_SCANOUT_MESA |
 100                EGL_DRM_BUFFER_USE_SHARE_MESA;
 101    if (attrs.DRMBufferUseMESA & ~valid_use) {
 102       _eglLog(_EGL_DEBUG, "bad image use bit 0x%04x",
 103             attrs.DRMBufferUseMESA);
 104       return NULL;
 105    }
 106
 107    memset(&templ, 0, sizeof(templ));
 108    templ.target = PIPE_TEXTURE_2D;
 109    templ.format = format;
 110    templ.bind = PIPE_BIND_RENDER_TARGET | PIPE_BIND_SAMPLER_VIEW;
 111    templ.width0 = attrs.Width;
 112    templ.height0 = attrs.Height;
 113    templ.depth0 = 1;
 114
 115    /*
 116     * XXX fix apps (e.g. wayland) and pipe drivers (e.g. i915) and remove the
 117     * size check
 118     */
 119    if ((attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_SCANOUT_MESA) &&
 120        attrs.Width >= 640 && attrs.Height >= 480)
 121       templ.bind |= PIPE_BIND_SCANOUT;
 122    if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_SHARE_MESA)
 123       templ.bind |= PIPE_BIND_SHARED;
 124
 125    return screen->resource_create(screen, &templ);
 126 }
 127
 128 static struct pipe_resource *
 129 egl_g3d_reference_drm_buffer(_EGLDisplay *dpy, EGLint name,
 130                              _EGLImage *img, const EGLint *attribs)
 131 {
 132    struct egl_g3d_display *gdpy = egl_g3d_display(dpy);
 133    struct pipe_resource templ;
 134    struct winsys_handle wsh;
 135    _EGLImageAttribs attrs;
 136    EGLint format;
 137
 138    if (!dpy->Extensions.MESA_drm_image)
 139       return NULL;
 140
 141    if (_eglParseImageAttribList(&attrs, dpy, attribs) != EGL_SUCCESS)
 142       return NULL;
 143
 144    if (attrs.Width <= 0 || attrs.Height <= 0 ||
 145        attrs.DRMBufferStrideMESA <= 0) {
 146       _eglLog(_EGL_DEBUG, "bad width, height, or stride (%dx%dx%d)",
 147             attrs.Width, attrs.Height, attrs.DRMBufferStrideMESA);
 148       return NULL;
 149    }
 150
 151    switch (attrs.DRMBufferFormatMESA) {
 152    case EGL_DRM_BUFFER_FORMAT_ARGB32_MESA:
 153       format = PIPE_FORMAT_B8G8R8A8_UNORM;
 154       break;
 155    default:
 156       _eglLog(_EGL_DEBUG, "bad image format value 0x%04x",
 157             attrs.DRMBufferFormatMESA);
 158       return NULL;
 159       break;
 160    }
 161
 162    memset(&templ, 0, sizeof(templ));
 163    templ.target = PIPE_TEXTURE_2D;
 164    templ.format = format;
 165    templ.bind = PIPE_BIND_RENDER_TARGET | PIPE_BIND_SAMPLER_VIEW;
 166    templ.width0 = attrs.Width;
 167    templ.height0 = attrs.Height;
 168    templ.depth0 = 1;
 169    templ.array_size = 1;
 170
 171    memset(&wsh, 0, sizeof(wsh));
 172    wsh.handle = (unsigned) name;
 173    wsh.stride =
 174       attrs.DRMBufferStrideMESA * util_format_get_blocksize(templ.format);
 175
 176    return gdpy->native->buffer->import_buffer(gdpy->native, &templ, &wsh);
 177 }
 178
 179 #endif /* EGL_MESA_drm_image */
 180
 181 _EGLImage *
 182 egl_g3d_create_image(_EGLDriver *drv, _EGLDisplay *dpy, _EGLContext *ctx,
 183                      EGLenum target, EGLClientBuffer buffer,
 184                      const EGLint *attribs)
 185 {
 186    struct pipe_resource *ptex;
 187    struct egl_g3d_image *gimg;
 188    unsigned level = 0, layer = 0;
 189
 190    gimg = CALLOC_STRUCT(egl_g3d_image);
 191    if (!gimg) {
 192       _eglError(EGL_BAD_ALLOC, "eglCreateEGLImageKHR");
 193       return NULL;
 194    }
 195
 196    if (!_eglInitImage(&gimg->base, dpy)) {
 197       FREE(gimg);
 198       return NULL;
 199    }
 200
 201    switch (target) {
 202    case EGL_NATIVE_PIXMAP_KHR:
 203       ptex = egl_g3d_reference_native_pixmap(dpy,
 204             (EGLNativePixmapType) buffer);
 205       break;
 206 #ifdef EGL_MESA_drm_image
 207    case EGL_DRM_BUFFER_MESA:
 208       ptex = egl_g3d_reference_drm_buffer(dpy,
 209             (EGLint) buffer, &gimg->base, attribs);
 210       break;
 211 #endif
 212    default:
 213       ptex = NULL;
 214       break;
 215    }
 216
 217    if (!ptex) {
 218       FREE(gimg);
 219       return NULL;
 220    }
 221
 222    if (level > ptex->last_level) {
 223       _eglError(EGL_BAD_MATCH, "eglCreateEGLImageKHR");
 224       pipe_resource_reference(&gimg->texture, NULL);
 225       FREE(gimg);
 226       return NULL;
 227    }
 228    if (layer >= (u_minify(ptex->depth0, level) + ptex->array_size - 1)) {
 229       _eglError(EGL_BAD_PARAMETER, "eglCreateEGLImageKHR");
 230       pipe_resource_reference(&gimg->texture, NULL);
 231       FREE(gimg);
 232       return NULL;
 233    }
 234
 235    /* transfer the ownership to the image */
 236    gimg->texture = ptex;
 237    gimg->level = level;
 238    gimg->layer = layer;
 239
 240    return &gimg->base;
 241 }
 242
 243 EGLBoolean
 244 egl_g3d_destroy_image(_EGLDriver *drv, _EGLDisplay *dpy, _EGLImage *img)
 245 {
 246    struct egl_g3d_image *gimg = egl_g3d_image(img);
 247
 248    pipe_resource_reference(&gimg->texture, NULL);
 249    FREE(gimg);
 250
 251    return EGL_TRUE;
 252 }
 253
 254 _EGLImage *
 255 egl_g3d_create_drm_image(_EGLDriver *drv, _EGLDisplay *dpy,
 256                          const EGLint *attribs)
 257 {
 258    struct egl_g3d_image *gimg;
 259    struct pipe_resource *ptex;
 260
 261    gimg = CALLOC_STRUCT(egl_g3d_image);
 262    if (!gimg) {
 263       _eglError(EGL_BAD_ALLOC, "eglCreateDRMImageKHR");
 264       return NULL;
 265    }
 266
 267    if (!_eglInitImage(&gimg->base, dpy)) {
 268       FREE(gimg);
 269       return NULL;
 270    }
 271
 272 #ifdef EGL_MESA_drm_image
 273    ptex = egl_g3d_create_drm_buffer(dpy, &gimg->base, attribs);
 274 #else
 275    ptex = NULL;
 276 #endif
 277    if (!ptex) {
 278       FREE(gimg);
 279       return NULL;
 280    }
 281
 282    /* transfer the ownership to the image */
 283    gimg->texture = ptex;
 284    gimg->level = 0;
 285    gimg->layer = 0;
 286
 287    return &gimg->base;
 288 }
 289
 290 EGLBoolean
 291 egl_g3d_export_drm_image(_EGLDriver *drv, _EGLDisplay *dpy, _EGLImage *img,
 292                          EGLint *name, EGLint *handle, EGLint *stride)
 293 {
 294    struct egl_g3d_display *gdpy = egl_g3d_display(dpy);
 295    struct egl_g3d_image *gimg = egl_g3d_image(img);
 296    struct winsys_handle wsh;
 297
 298    if (!dpy->Extensions.MESA_drm_image)
 299       return EGL_FALSE;
 300
 301    /* get shared handle */
 302    if (name) {
 303       memset(&handle, 0, sizeof(handle));
 304       wsh.type = DRM_API_HANDLE_TYPE_SHARED;
 305       if (!gdpy->native->buffer->export_buffer(gdpy->native,
 306                                                gimg->texture, &wsh))
 307          return EGL_FALSE;
 308
 309       *name = wsh.handle;
 310    }
 311
 312    /* get KMS handle */
 313    if (handle || stride) {
 314       memset(&wsh, 0, sizeof(wsh));
 315       wsh.type = DRM_API_HANDLE_TYPE_KMS;
 316       if (!gdpy->native->buffer->export_buffer(gdpy->native,
 317                                                gimg->texture, &wsh))
 318          return EGL_FALSE;
 319
 320       if (handle)
 321          *handle = wsh.handle;
 322       if (stride)
 323          *stride = wsh.stride;
 324    }
 325
 326    return EGL_TRUE;
 327 }