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/*
* Toshiba TC6393XB I/O Controller.
* Found in Sharp Zaurus SL-6000 (tosa) or some
* Toshiba e-Series PDAs.
*
* FB support code. Based on G364 fb emulator
*
* Copyright (c) 2007 Hervé Poussineau
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#if BITS == 8
# define SET_PIXEL(addr, color) *(uint8_t*)addr = color;
#elif BITS == 15 || BITS == 16
# define SET_PIXEL(addr, color) *(uint16_t*)addr = color;
#elif BITS == 24
# define SET_PIXEL(addr, color) \
addr[0] = color; addr[1] = (color) >> 8; addr[2] = (color) >> 16;
#elif BITS == 32
# define SET_PIXEL(addr, color) *(uint32_t*)addr = color;
#else
# error unknown bit depth
#endif
static void glue(tc6393xb_draw_graphic, BITS)(struct tc6393xb_s *s)
{
int i;
int w_display;
uint16_t *data_buffer;
uint8_t *data_display;
data_buffer = (uint16_t*)(phys_ram_base + s->vram_addr);
w_display = s->scr_width * BITS / 8;
data_display = s->ds->data;
for(i = 0; i < s->scr_height; i++) {
#if (BITS == 16)
memcpy(data_display, data_buffer, s->scr_width * 2);
data_buffer += s->scr_width;
data_display += s->ds->linesize;
#else
int j;
for (j = 0; j < s->scr_width; j++, data_display += BITS / 8, data_buffer++) {
uint16_t color = *data_buffer;
uint32_t dest_color = glue(rgb_to_pixel, BITS)(
((color & 0xf800) * 0x108) >> 11,
((color & 0x7e0) * 0x41) >> 9,
((color & 0x1f) * 0x21) >> 2
);
SET_PIXEL(data_display, dest_color);
}
#endif
}
}
#undef BITS
#undef SET_PIXEL
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