src/mesa/state_tracker/st_cb_eglimage.c

   1 /*
   2  * Mesa 3-D graphics library
   3  *
   4  * Copyright (C) 2010 LunarG Inc.
   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 shall be included
  14  * in all copies or substantial portions of the Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  19  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  21  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  22  * DEALINGS IN THE SOFTWARE.
  23  *
  24  * Authors:
  25  *    Chia-I Wu <olv@lunarg.com>
  26  */
  27
  28 #include "main/errors.h"
  29 #include "main/texobj.h"
  30 #include "main/teximage.h"
  31 #include "util/u_inlines.h"
  32 #include "util/format/u_format.h"
  33 #include "st_cb_eglimage.h"
  34 #include "st_cb_fbo.h"
  35 #include "st_context.h"
  36 #include "st_texture.h"
  37 #include "st_format.h"
  38 #include "st_manager.h"
  39 #include "st_sampler_view.h"
  40 #include "util/u_surface.h"
  41
  42 static bool
  43 is_format_supported(struct pipe_screen *screen, enum pipe_format format,
  44                     unsigned nr_samples, unsigned nr_storage_samples,
  45                     unsigned usage)
  46 {
  47    bool supported = screen->is_format_supported(screen, format, PIPE_TEXTURE_2D,
  48                                                 nr_samples, nr_storage_samples,
  49                                                 usage);
  50
  51    /* for sampling, some formats can be emulated.. it doesn't matter that
  52     * the surface will have a format that the driver can't cope with because
  53     * we'll give it sampler view formats that it can deal with and generate
  54     * a shader variant that converts.
  55     */
  56    if ((usage == PIPE_BIND_SAMPLER_VIEW) && !supported) {
  57       switch (format) {
  58       case PIPE_FORMAT_IYUV:
  59          supported = screen->is_format_supported(screen, PIPE_FORMAT_R8_UNORM,
  60                                                  PIPE_TEXTURE_2D, nr_samples,
  61                                                  nr_storage_samples, usage);
  62          break;
  63       case PIPE_FORMAT_NV12:
  64          supported = screen->is_format_supported(screen, PIPE_FORMAT_R8_UNORM,
  65                                                  PIPE_TEXTURE_2D, nr_samples,
  66                                                  nr_storage_samples, usage) &&
  67                      screen->is_format_supported(screen, PIPE_FORMAT_R8G8_UNORM,
  68                                                  PIPE_TEXTURE_2D, nr_samples,
  69                                                  nr_storage_samples, usage);
  70          break;
  71       case PIPE_FORMAT_P016:
  72          supported = screen->is_format_supported(screen, PIPE_FORMAT_R16_UNORM,
  73                                                  PIPE_TEXTURE_2D, nr_samples,
  74                                                  nr_storage_samples, usage) &&
  75                      screen->is_format_supported(screen, PIPE_FORMAT_R16G16_UNORM,
  76                                                  PIPE_TEXTURE_2D, nr_samples,
  77                                                  nr_storage_samples, usage);
  78          break;
  79       case PIPE_FORMAT_YUYV:
  80          supported = screen->is_format_supported(screen, PIPE_FORMAT_RG88_UNORM,
  81                                                  PIPE_TEXTURE_2D, nr_samples,
  82                                                  nr_storage_samples, usage) &&
  83                      screen->is_format_supported(screen, PIPE_FORMAT_BGRA8888_UNORM,
  84                                                  PIPE_TEXTURE_2D, nr_samples,
  85                                                  nr_storage_samples, usage);
  86          break;
  87       case PIPE_FORMAT_UYVY:
  88          supported = screen->is_format_supported(screen, PIPE_FORMAT_RG88_UNORM,
  89                                                  PIPE_TEXTURE_2D, nr_samples,
  90                                                  nr_storage_samples, usage) &&
  91                      screen->is_format_supported(screen, PIPE_FORMAT_RGBA8888_UNORM,
  92                                                  PIPE_TEXTURE_2D, nr_samples,
  93                                                  nr_storage_samples, usage);
  94          break;
  95       case PIPE_FORMAT_AYUV:
  96          supported = screen->is_format_supported(screen, PIPE_FORMAT_RGBA8888_UNORM,
  97                                                  PIPE_TEXTURE_2D, nr_samples,
  98                                                  nr_storage_samples, usage);
  99          break;
 100       case PIPE_FORMAT_XYUV:
 101          supported = screen->is_format_supported(screen, PIPE_FORMAT_RGBX8888_UNORM,
 102                                                  PIPE_TEXTURE_2D, nr_samples,
 103                                                  nr_storage_samples, usage);
 104          break;
 105        default:
 106          break;
 107       }
 108    }
 109
 110    return supported;
 111 }
 112
 113 /**
 114  * Return the gallium texture of an EGLImage.
 115  */
 116 static bool
 117 st_get_egl_image(struct gl_context *ctx, GLeglImageOES image_handle,
 118                  unsigned usage, const char *error, struct st_egl_image *out)
 119 {
 120    struct st_context *st = st_context(ctx);
 121    struct pipe_screen *screen = st->pipe->screen;
 122    struct st_manager *smapi =
 123       (struct st_manager *) st->iface.st_context_private;
 124
 125    if (!smapi || !smapi->get_egl_image)
 126       return false;
 127
 128    memset(out, 0, sizeof(*out));
 129    if (!smapi->get_egl_image(smapi, (void *) image_handle, out)) {
 130       /* image_handle does not refer to a valid EGL image object */
 131       _mesa_error(ctx, GL_INVALID_VALUE, "%s(image handle not found)", error);
 132       return false;
 133    }
 134
 135    if (!is_format_supported(screen, out->format, out->texture->nr_samples,
 136                             out->texture->nr_storage_samples, usage)) {
 137       /* unable to specify a texture object using the specified EGL image */
 138       pipe_resource_reference(&out->texture, NULL);
 139       _mesa_error(ctx, GL_INVALID_OPERATION, "%s(format not supported)", error);
 140       return false;
 141    }
 142
 143    return true;
 144 }
 145
 146 /**
 147  * Return the base format just like _mesa_base_fbo_format does.
 148  */
 149 static GLenum
 150 st_pipe_format_to_base_format(enum pipe_format format)
 151 {
 152    GLenum base_format;
 153
 154    if (util_format_is_depth_or_stencil(format)) {
 155       if (util_format_is_depth_and_stencil(format)) {
 156          base_format = GL_DEPTH_STENCIL;
 157       }
 158       else {
 159          if (format == PIPE_FORMAT_S8_UINT)
 160             base_format = GL_STENCIL_INDEX;
 161          else
 162             base_format = GL_DEPTH_COMPONENT;
 163       }
 164    }
 165    else {
 166       /* is this enough? */
 167       if (util_format_has_alpha(format))
 168          base_format = GL_RGBA;
 169       else
 170          base_format = GL_RGB;
 171    }
 172
 173    return base_format;
 174 }
 175
 176 static void
 177 st_egl_image_target_renderbuffer_storage(struct gl_context *ctx,
 178                                          struct gl_renderbuffer *rb,
 179                                          GLeglImageOES image_handle)
 180 {
 181    struct st_renderbuffer *strb = st_renderbuffer(rb);
 182    struct st_egl_image stimg;
 183
 184    if (st_get_egl_image(ctx, image_handle, PIPE_BIND_RENDER_TARGET,
 185                         "glEGLImageTargetRenderbufferStorage",
 186                         &stimg)) {
 187       struct pipe_context *pipe = st_context(ctx)->pipe;
 188       struct pipe_surface *ps, surf_tmpl;
 189
 190       u_surface_default_template(&surf_tmpl, stimg.texture);
 191       surf_tmpl.format = stimg.format;
 192       surf_tmpl.u.tex.level = stimg.level;
 193       surf_tmpl.u.tex.first_layer = stimg.layer;
 194       surf_tmpl.u.tex.last_layer = stimg.layer;
 195       ps = pipe->create_surface(pipe, stimg.texture, &surf_tmpl);
 196       pipe_resource_reference(&stimg.texture, NULL);
 197
 198       if (!ps)
 199          return;
 200
 201       strb->Base.Format = st_pipe_format_to_mesa_format(ps->format);
 202       strb->Base._BaseFormat = st_pipe_format_to_base_format(ps->format);
 203       strb->Base.InternalFormat = strb->Base._BaseFormat;
 204
 205       st_set_ws_renderbuffer_surface(strb, ps);
 206       pipe_surface_reference(&ps, NULL);
 207    }
 208 }
 209
 210 static void
 211 st_bind_egl_image(struct gl_context *ctx,
 212                   struct gl_texture_object *texObj,
 213                   struct gl_texture_image *texImage,
 214                   struct st_egl_image *stimg)
 215 {
 216    struct st_context *st = st_context(ctx);
 217    struct st_texture_object *stObj;
 218    struct st_texture_image *stImage;
 219    GLenum internalFormat;
 220    mesa_format texFormat;
 221
 222    /* map pipe format to base format */
 223    if (util_format_get_component_bits(stimg->format,
 224                                       UTIL_FORMAT_COLORSPACE_RGB, 3) > 0)
 225       internalFormat = GL_RGBA;
 226    else
 227       internalFormat = GL_RGB;
 228
 229    stObj = st_texture_object(texObj);
 230    stImage = st_texture_image(texImage);
 231
 232    /* switch to surface based */
 233    if (!stObj->surface_based) {
 234       _mesa_clear_texture_object(ctx, texObj, NULL);
 235       stObj->surface_based = GL_TRUE;
 236    }
 237
 238    /* TODO RequiredTextureImageUnits should probably be reset back
 239     * to 1 somewhere if different texture is bound??
 240     */
 241    switch (stimg->format) {
 242    case PIPE_FORMAT_NV12:
 243       texFormat = MESA_FORMAT_R_UNORM8;
 244       texObj->RequiredTextureImageUnits = 2;
 245       break;
 246    case PIPE_FORMAT_P016:
 247       texFormat = MESA_FORMAT_R_UNORM16;
 248       texObj->RequiredTextureImageUnits = 2;
 249       break;
 250    case PIPE_FORMAT_IYUV:
 251       texFormat = MESA_FORMAT_R_UNORM8;
 252       texObj->RequiredTextureImageUnits = 3;
 253       break;
 254    case PIPE_FORMAT_YUYV:
 255    case PIPE_FORMAT_UYVY:
 256       texFormat = MESA_FORMAT_RG_UNORM8;
 257       texObj->RequiredTextureImageUnits = 2;
 258       break;
 259    case PIPE_FORMAT_AYUV:
 260       texFormat = MESA_FORMAT_R8G8B8A8_UNORM;
 261       internalFormat = GL_RGBA;
 262       texObj->RequiredTextureImageUnits = 1;
 263       break;
 264    case PIPE_FORMAT_XYUV:
 265       texFormat = MESA_FORMAT_R8G8B8X8_UNORM;
 266       texObj->RequiredTextureImageUnits = 1;
 267       break;
 268    default:
 269       texFormat = st_pipe_format_to_mesa_format(stimg->format);
 270       break;
 271    }
 272    assert(texFormat != MESA_FORMAT_NONE);
 273
 274    /* Minify texture size based on level set on the EGLImage. */
 275    uint32_t width = u_minify(stimg->texture->width0, stimg->level);
 276    uint32_t height = u_minify(stimg->texture->height0, stimg->level);
 277
 278    _mesa_init_teximage_fields(ctx, texImage, width, height,
 279                               1, 0, internalFormat, texFormat);
 280
 281    pipe_resource_reference(&stObj->pt, stimg->texture);
 282    st_texture_release_all_sampler_views(st, stObj);
 283    pipe_resource_reference(&stImage->pt, stObj->pt);
 284    if (st->pipe->screen->resource_changed)
 285       st->pipe->screen->resource_changed(st->pipe->screen, stImage->pt);
 286
 287    stObj->surface_format = stimg->format;
 288    stObj->level_override = stimg->level;
 289    stObj->layer_override = stimg->layer;
 290
 291    _mesa_dirty_texobj(ctx, texObj);
 292 }
 293
 294 static void
 295 st_egl_image_target_texture_2d(struct gl_context *ctx, GLenum target,
 296                                struct gl_texture_object *texObj,
 297                                struct gl_texture_image *texImage,
 298                                GLeglImageOES image_handle)
 299 {
 300    struct st_egl_image stimg;
 301
 302    if (!st_get_egl_image(ctx, image_handle, PIPE_BIND_SAMPLER_VIEW,
 303                          "glEGLImageTargetTexture2D", &stimg))
 304       return;
 305
 306    st_bind_egl_image(ctx, texObj, texImage, &stimg);
 307    pipe_resource_reference(&stimg.texture, NULL);
 308 }
 309
 310 void
 311 st_init_eglimage_functions(struct dd_function_table *functions)
 312 {
 313    functions->EGLImageTargetTexture2D = st_egl_image_target_texture_2d;
 314    functions->EGLImageTargetRenderbufferStorage = st_egl_image_target_renderbuffer_storage;
 315 }