Annotation of qemu/hw/tc6393xb_template.h, revision 1.1.1.1

1.1       root        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, write to the Free Software Foundation, Inc.,
                     22:  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
                     23:  */
                     24: 
                     25: #if BITS == 8
                     26: # define SET_PIXEL(addr, color)        *(uint8_t*)addr = color;
                     27: #elif BITS == 15 || BITS == 16
                     28: # define SET_PIXEL(addr, color)        *(uint16_t*)addr = color;
                     29: #elif BITS == 24
                     30: # define SET_PIXEL(addr, color)        \
                     31:     addr[0] = color; addr[1] = (color) >> 8; addr[2] = (color) >> 16;
                     32: #elif BITS == 32
                     33: # define SET_PIXEL(addr, color)        *(uint32_t*)addr = color;
                     34: #else
                     35: # error unknown bit depth
                     36: #endif
                     37: 
                     38: 
                     39: static void glue(tc6393xb_draw_graphic, BITS)(struct tc6393xb_s *s)
                     40: {
                     41:     int i;
                     42:     int w_display;
                     43:     uint16_t *data_buffer;
                     44:     uint8_t *data_display;
                     45: 
                     46:     data_buffer = (uint16_t*)(phys_ram_base + s->vram_addr);
                     47:     w_display = s->scr_width * BITS / 8;
                     48:     data_display = ds_get_data(s->ds);
                     49:     for(i = 0; i < s->scr_height; i++) {
                     50: #if (BITS == 16)
                     51:         memcpy(data_display, data_buffer, s->scr_width * 2);
                     52:         data_buffer += s->scr_width;
                     53:         data_display += ds_get_linesize(s->ds);
                     54: #else
                     55:         int j;
                     56:         for (j = 0; j < s->scr_width; j++, data_display += BITS / 8, data_buffer++) {
                     57:             uint16_t color = *data_buffer;
                     58:             uint32_t dest_color = glue(rgb_to_pixel, BITS)(
                     59:                            ((color & 0xf800) * 0x108) >> 11,
                     60:                            ((color & 0x7e0) * 0x41) >> 9,
                     61:                            ((color & 0x1f) * 0x21) >> 2
                     62:                            );
                     63:             SET_PIXEL(data_display, dest_color);
                     64:         }
                     65: #endif
                     66:     }
                     67: }
                     68: 
                     69: #undef BITS
                     70: #undef SET_PIXEL

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