hw/display/tc6393xb_template.h

   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     do {                         \
  31         addr[0] = color;         \
  32         addr[1] = (color) >> 8;  \
  33         addr[2] = (color) >> 16; \
  34     } while (0)
  35 #elif BITS == 32
  36 # define SET_PIXEL(addr, color)  (*(uint32_t *)addr = color)
  37 #else
  38 # error unknown bit depth
  39 #endif
  40
  41
  42 static void glue(tc6393xb_draw_graphic, BITS)(TC6393xbState *s)
  43 {
  44     DisplaySurface *surface = qemu_console_surface(s->con);
  45     int i;
  46     uint16_t *data_buffer;
  47     uint8_t *data_display;
  48
  49     data_buffer = s->vram_ptr;
  50     data_display = surface_data(surface);
  51     for(i = 0; i < s->scr_height; i++) {
  52 #if (BITS == 16)
  53         memcpy(data_display, data_buffer, s->scr_width * 2);
  54         data_buffer += s->scr_width;
  55         data_display += surface_stride(surface);
  56 #else
  57         int j;
  58         for (j = 0; j < s->scr_width; j++, data_display += BITS / 8, data_buffer++) {
  59             uint16_t color = *data_buffer;
  60             uint32_t dest_color = glue(rgb_to_pixel, BITS)(
  61                            ((color & 0xf800) * 0x108) >> 11,
  62                            ((color & 0x7e0) * 0x41) >> 9,
  63                            ((color & 0x1f) * 0x21) >> 2
  64                            );
  65             SET_PIXEL(data_display, dest_color);
  66         }
  67 #endif
  68     }
  69 }
  70
  71 #undef BITS
  72 #undef SET_PIXEL