LXR qemu/hw/display/tc6393xb

   1/*
   2 * Toshiba TC6393XB I/O Controller.
   3 * Found in Sharp Zaurus SL-6000 (tosa) or some
   4 * Toshiba e-Series PDAs.
   5 *
   6 * FB support code. Based on G364 fb emulator
   7 *
   8 * Copyright (c) 2007 Hervé Poussineau
   9 *
  10 * This program is free software; you can redistribute it and/or
  11 * modify it under the terms of the GNU General Public License as
  12 * published by the Free Software Foundation; either version 2 of
  13 * the License, or (at your option) any later version.
  14 *
  15 * This program is distributed in the hope that it will be useful,
  16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18 * GNU General Public License for more details.
  19 *
  20 * You should have received a copy of the GNU General Public License along
  21 * with this program; if not, see <http://www.gnu.org/licenses/>.
  22 */
  23
  24#if BITS == 8
  25# define SET_PIXEL(addr, color) *(uint8_t*)addr = color;
  26#elif BITS == 15 || BITS == 16
  27# define SET_PIXEL(addr, color) *(uint16_t*)addr = color;
  28#elif BITS == 24
  29# define SET_PIXEL(addr, color) \
  30    addr[0] = color; addr[1] = (color) >> 8; addr[2] = (color) >> 16;
  31#elif BITS == 32
  32# define SET_PIXEL(addr, color) *(uint32_t*)addr = color;
  33#else
  34# error unknown bit depth
  35#endif
  36
  37
  38static void glue(tc6393xb_draw_graphic, BITS)(TC6393xbState *s)
  39{
  40    DisplaySurface *surface = qemu_console_surface(s->con);
  41    int i;
  42    uint16_t *data_buffer;
  43    uint8_t *data_display;
  44
  45    data_buffer = s->vram_ptr;
  46    data_display = surface_data(surface);
  47    for(i = 0; i < s->scr_height; i++) {
  48#if (BITS == 16)
  49        memcpy(data_display, data_buffer, s->scr_width * 2);
  50        data_buffer += s->scr_width;
  51        data_display += surface_stride(surface);
  52#else
  53        int j;
  54        for (j = 0; j < s->scr_width; j++, data_display += BITS / 8, data_buffer++) {
  55            uint16_t color = *data_buffer;
  56            uint32_t dest_color = glue(rgb_to_pixel, BITS)(
  57                           ((color & 0xf800) * 0x108) >> 11,
  58                           ((color & 0x7e0) * 0x41) >> 9,
  59                           ((color & 0x1f) * 0x21) >> 2
  60                           );
  61            SET_PIXEL(data_display, dest_color);
  62        }
  63#endif
  64    }
  65}
  66
  67#undef BITS
  68#undef SET_PIXEL
  69