Ejemplos de svga_buffer_upload_gb_command en C++ (Cpp)

Ejemplo n.º 1

Archivo: svga_resource_buffer_upload.c Proyecto: Kalamatee/mesa

/**
 * Issue commands to transfer guest memory to the host.
 */
static enum pipe_error
svga_buffer_upload_command(struct svga_context *svga, struct svga_buffer *sbuf)
{
   if (svga_have_gb_objects(svga)) {
      return svga_buffer_upload_gb_command(svga, sbuf);
   } else {
      return svga_buffer_upload_hb_command(svga, sbuf);
   }
}

Ejemplo n.º 2

Archivo: svga_resource_buffer_upload.c Proyecto: Distrotech/Mesa

/**
 * Variant of SVGA3D_BufferDMA which leaves the copy box temporarily in blank.
 */
static enum pipe_error
svga_buffer_upload_command(struct svga_context *svga,
                           struct svga_buffer *sbuf)
{
   struct svga_winsys_context *swc = svga->swc;
   struct svga_winsys_buffer *guest = sbuf->hwbuf;
   struct svga_winsys_surface *host = sbuf->handle;
   SVGA3dTransferType transfer = SVGA3D_WRITE_HOST_VRAM;
   SVGA3dCmdSurfaceDMA *cmd;
   uint32 numBoxes = sbuf->map.num_ranges;
   SVGA3dCopyBox *boxes;
   SVGA3dCmdSurfaceDMASuffix *pSuffix;
   unsigned region_flags;
   unsigned surface_flags;
   struct pipe_resource *dummy;

   if (svga_have_gb_objects(svga))
      return svga_buffer_upload_gb_command(svga, sbuf);

   if (transfer == SVGA3D_WRITE_HOST_VRAM) {
      region_flags = SVGA_RELOC_READ;
      surface_flags = SVGA_RELOC_WRITE;
   }
   else if (transfer == SVGA3D_READ_HOST_VRAM) {
      region_flags = SVGA_RELOC_WRITE;
      surface_flags = SVGA_RELOC_READ;
   }
   else {
      assert(0);
      return PIPE_ERROR_BAD_INPUT;
   }

   assert(numBoxes);

   cmd = SVGA3D_FIFOReserve(swc,
                            SVGA_3D_CMD_SURFACE_DMA,
                            sizeof *cmd + numBoxes * sizeof *boxes + sizeof *pSuffix,
                            2);
   if (!cmd)
      return PIPE_ERROR_OUT_OF_MEMORY;

   swc->region_relocation(swc, &cmd->guest.ptr, guest, 0, region_flags);
   cmd->guest.pitch = 0;

   swc->surface_relocation(swc, &cmd->host.sid, NULL, host, surface_flags);
   cmd->host.face = 0;
   cmd->host.mipmap = 0;

   cmd->transfer = transfer;

   sbuf->dma.boxes = (SVGA3dCopyBox *)&cmd[1];
   sbuf->dma.svga = svga;

   /* Increment reference count */
   dummy = NULL;
   pipe_resource_reference(&dummy, &sbuf->b.b);

   pSuffix = (SVGA3dCmdSurfaceDMASuffix *)((uint8_t*)cmd + sizeof *cmd + numBoxes * sizeof *boxes);
   pSuffix->suffixSize = sizeof *pSuffix;
   pSuffix->maximumOffset = sbuf->b.b.width0;
   pSuffix->flags = sbuf->dma.flags;

   SVGA_FIFOCommitAll(swc);

   sbuf->dma.flags.discard = FALSE;

   return PIPE_OK;
}