C++ (Cpp) validate_bind_image_texture примеры использования

Пример #1

void GLAPIENTRY
_mesa_BindImageTexture(GLuint unit, GLuint texture, GLint level,
                       GLboolean layered, GLint layer, GLenum access,
                       GLenum format)
{
   GET_CURRENT_CONTEXT(ctx);
   struct gl_image_unit *u;

   if (!validate_bind_image_texture(ctx, unit, texture, level,
                                    layered, layer, access, format))
      return;

   u = &ctx->ImageUnits[unit];

   FLUSH_VERTICES(ctx, 0);
   ctx->NewDriverState |= ctx->DriverFlags.NewImageUnits;

   if (texture) {
      struct gl_texture_object *t = _mesa_lookup_texture(ctx, texture);

      if (!t) {
         _mesa_error(ctx, GL_INVALID_VALUE, "glBindImageTexture(texture)");
         return;
      }

      /* From section 8.22 "Texture Image Loads and Stores" of the OpenGL ES
       * 3.1 spec:
       *
       * "An INVALID_OPERATION error is generated if texture is not the name
       *  of an immutable texture object."
       */
      if (_mesa_is_gles(ctx) && !t->Immutable) {
         _mesa_error(ctx, GL_INVALID_OPERATION,
                     "glBindImageTexture(!immutable)");
         return;
      }

      _mesa_reference_texobj(&u->TexObj, t);
   } else {
      _mesa_reference_texobj(&u->TexObj, NULL);
   }

   u->Level = level;
   u->Access = access;
   u->Format = format;
   u->_ActualFormat = _mesa_get_shader_image_format(format);

   if (u->TexObj && _mesa_tex_target_is_layered(u->TexObj->Target)) {
      u->Layered = layered;
      u->Layer = layer;
      u->_Layer = (u->Layered ? 0 : u->Layer);
   } else {
      u->Layered = GL_FALSE;
      u->Layer = 0;
   }

   if (ctx->Driver.BindImageTexture)
      ctx->Driver.BindImageTexture(ctx, u, u->TexObj, level, layered,
                                   layer, access, format);
}

Пример #2

Файл: shaderimage.c Проект: DirectFB/mesa

void GLAPIENTRY
_mesa_BindImageTexture(GLuint unit, GLuint texture, GLint level,
                       GLboolean layered, GLint layer, GLenum access,
                       GLenum format)
{
   GET_CURRENT_CONTEXT(ctx);
   struct gl_texture_object *t = NULL;
   struct gl_image_unit *u;

   if (!validate_bind_image_texture(ctx, unit, texture, level,
                                    layered, layer, access, format))
      return;

   u = &ctx->ImageUnits[unit];

   FLUSH_VERTICES(ctx, 0);
   ctx->NewDriverState |= ctx->DriverFlags.NewImageUnits;

   if (texture) {
      t = _mesa_lookup_texture(ctx, texture);
      if (!t) {
         _mesa_error(ctx, GL_INVALID_VALUE, "glBindImageTexture(texture)");
         return;
      }

      _mesa_reference_texobj(&u->TexObj, t);
      u->Level = level;
      u->Access = access;
      u->Format = format;
      u->_ActualFormat = get_image_format(format);

      if (_mesa_tex_target_is_layered(t->Target)) {
         u->Layered = layered;
         u->Layer = (layered ? 0 : layer);
      } else {
         u->Layered = GL_FALSE;
         u->Layer = 0;
      }

   } else {
      _mesa_reference_texobj(&u->TexObj, NULL);
   }

   u->_Valid = validate_image_unit(ctx, u);

   if (ctx->Driver.BindImageTexture)
      ctx->Driver.BindImageTexture(ctx, u, t, level, layered,
                                   layer, access, format);
}