qemu/hw/display/tc6393xb_template.h
Paolo Bonzini 2cdaca90dd display: avoid multi-statement macro
For blizzard, pl110 and tc6393xb this is harmless, but for pxa2xx
Coverity noticed that it is used inside an "if" statement.
Fix it because it's the file with the highest number of defects
in the whole QEMU tree!  Use "do...while (0)", or just remove the
semicolon if there's a single statement in the macro.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-01-31 14:47:33 +00:00

73 lines
2.3 KiB
C

/*
* 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, see <http://www.gnu.org/licenses/>.
*/
#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) \
do { \
addr[0] = color; \
addr[1] = (color) >> 8; \
addr[2] = (color) >> 16; \
} while (0)
#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)(TC6393xbState *s)
{
DisplaySurface *surface = qemu_console_surface(s->con);
int i;
uint16_t *data_buffer;
uint8_t *data_display;
data_buffer = s->vram_ptr;
data_display = surface_data(surface);
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 += surface_stride(surface);
#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