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qemu/hw/tcx.c
Jan Kiszka 8217606e6e Introduce reset notifier order 
Add the parameter 'order' to qemu_register_reset and sort callbacks on
registration. On system reset, callbacks with lower order will be
invoked before those with higher order. Update all existing users to the
standard order 0.

Note: At least for x86, the existing users seem to assume that handlers
are called in their registration order. Therefore, the patch preserves
this property. If someone feels bored, (s)he could try to identify this
dependency and express it properly on callback registration.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-05-22 10:50:34 -05:00

630 lines
18 KiB
C
Raw Blame History

/*
* QEMU TCX Frame buffer
*
* Copyright (c) 2003-2005 Fabrice Bellard
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include "hw.h"
#include "sun4m.h"
#include "console.h"
#include "pixel_ops.h"
#define MAXX 1024
#define MAXY 768
#define TCX_DAC_NREGS 16
#define TCX_THC_NREGS_8 0x081c
#define TCX_THC_NREGS_24 0x1000
#define TCX_TEC_NREGS 0x1000
typedef struct TCXState {
target_phys_addr_t addr;
DisplayState *ds;
uint8_t *vram;
uint32_t *vram24, *cplane;
ram_addr_t vram_offset, vram24_offset, cplane_offset;
uint16_t width, height, depth;
uint8_t r[256], g[256], b[256];
uint32_t palette[256];
uint8_t dac_index, dac_state;
} TCXState;
static void tcx_screen_dump(void *opaque, const char *filename);
static void tcx24_screen_dump(void *opaque, const char *filename);
static void tcx_invalidate_display(void *opaque);
static void tcx24_invalidate_display(void *opaque);
static void update_palette_entries(TCXState *s, int start, int end)
{
int i;
for(i = start; i < end; i++) {
switch(ds_get_bits_per_pixel(s->ds)) {
default:
case 8:
s->palette[i] = rgb_to_pixel8(s->r[i], s->g[i], s->b[i]);
break;
case 15:
s->palette[i] = rgb_to_pixel15(s->r[i], s->g[i], s->b[i]);
break;
case 16:
s->palette[i] = rgb_to_pixel16(s->r[i], s->g[i], s->b[i]);
break;
case 32:
if (is_surface_bgr(s->ds->surface))
s->palette[i] = rgb_to_pixel32bgr(s->r[i], s->g[i], s->b[i]);
else
s->palette[i] = rgb_to_pixel32(s->r[i], s->g[i], s->b[i]);
break;
}
}
if (s->depth == 24)
tcx24_invalidate_display(s);
else
tcx_invalidate_display(s);
}
static void tcx_draw_line32(TCXState *s1, uint8_t *d,
const uint8_t *s, int width)
{
int x;
uint8_t val;
uint32_t *p = (uint32_t *)d;
for(x = 0; x < width; x++) {
val = *s++;
*p++ = s1->palette[val];
}
}
static void tcx_draw_line16(TCXState *s1, uint8_t *d,
const uint8_t *s, int width)
{
int x;
uint8_t val;
uint16_t *p = (uint16_t *)d;
for(x = 0; x < width; x++) {
val = *s++;
*p++ = s1->palette[val];
}
}
static void tcx_draw_line8(TCXState *s1, uint8_t *d,
const uint8_t *s, int width)
{
int x;
uint8_t val;
for(x = 0; x < width; x++) {
val = *s++;
*d++ = s1->palette[val];
}
}
/*
XXX Could be much more optimal:
* detect if line/page/whole screen is in 24 bit mode
* if destination is also BGR, use memcpy
*/
static inline void tcx24_draw_line32(TCXState *s1, uint8_t *d,
const uint8_t *s, int width,
const uint32_t *cplane,
const uint32_t *s24)
{
int x, bgr, r, g, b;
uint8_t val, *p8;
uint32_t *p = (uint32_t *)d;
uint32_t dval;
bgr = is_surface_bgr(s1->ds->surface);
for(x = 0; x < width; x++, s++, s24++) {
if ((be32_to_cpu(*cplane++) & 0xff000000) == 0x03000000) {
// 24-bit direct, BGR order
p8 = (uint8_t *)s24;
p8++;
b = *p8++;
g = *p8++;
r = *p8++;
if (bgr)
dval = rgb_to_pixel32bgr(r, g, b);
else
dval = rgb_to_pixel32(r, g, b);
} else {
val = *s;
dval = s1->palette[val];
}
*p++ = dval;
}
}
static inline int check_dirty(ram_addr_t page, ram_addr_t page24,
ram_addr_t cpage)
{
int ret;
unsigned int off;
ret = cpu_physical_memory_get_dirty(page, VGA_DIRTY_FLAG);
for (off = 0; off < TARGET_PAGE_SIZE * 4; off += TARGET_PAGE_SIZE) {
ret |= cpu_physical_memory_get_dirty(page24 + off, VGA_DIRTY_FLAG);
ret |= cpu_physical_memory_get_dirty(cpage + off, VGA_DIRTY_FLAG);
}
return ret;
}
static inline void reset_dirty(TCXState *ts, ram_addr_t page_min,
ram_addr_t page_max, ram_addr_t page24,
ram_addr_t cpage)
{
cpu_physical_memory_reset_dirty(page_min, page_max + TARGET_PAGE_SIZE,
VGA_DIRTY_FLAG);
page_min -= ts->vram_offset;
page_max -= ts->vram_offset;
cpu_physical_memory_reset_dirty(page24 + page_min * 4,
page24 + page_max * 4 + TARGET_PAGE_SIZE,
VGA_DIRTY_FLAG);
cpu_physical_memory_reset_dirty(cpage + page_min * 4,
cpage + page_max * 4 + TARGET_PAGE_SIZE,
VGA_DIRTY_FLAG);
}
/* Fixed line length 1024 allows us to do nice tricks not possible on
VGA... */
static void tcx_update_display(void *opaque)
{
TCXState *ts = opaque;
ram_addr_t page, page_min, page_max;
int y, y_start, dd, ds;
uint8_t *d, *s;
void (*f)(TCXState *s1, uint8_t *dst, const uint8_t *src, int width);
if (ds_get_bits_per_pixel(ts->ds) == 0)
return;
page = ts->vram_offset;
y_start = -1;
page_min = -1;
page_max = 0;
d = ds_get_data(ts->ds);
s = ts->vram;
dd = ds_get_linesize(ts->ds);
ds = 1024;
switch (ds_get_bits_per_pixel(ts->ds)) {
case 32:
f = tcx_draw_line32;
break;
case 15:
case 16:
f = tcx_draw_line16;
break;
default:
case 8:
f = tcx_draw_line8;
break;
case 0:
return;
}
for(y = 0; y < ts->height; y += 4, page += TARGET_PAGE_SIZE) {
if (cpu_physical_memory_get_dirty(page, VGA_DIRTY_FLAG)) {
if (y_start < 0)
y_start = y;
if (page < page_min)
page_min = page;
if (page > page_max)
page_max = page;
f(ts, d, s, ts->width);
d += dd;
s += ds;
f(ts, d, s, ts->width);
d += dd;
s += ds;
f(ts, d, s, ts->width);
d += dd;
s += ds;
f(ts, d, s, ts->width);
d += dd;
s += ds;
} else {
if (y_start >= 0) {
/* flush to display */
dpy_update(ts->ds, 0, y_start,
ts->width, y - y_start);
y_start = -1;
}
d += dd * 4;
s += ds * 4;
}
}
if (y_start >= 0) {
/* flush to display */
dpy_update(ts->ds, 0, y_start,
ts->width, y - y_start);
}
/* reset modified pages */
if (page_max >= page_min) {
cpu_physical_memory_reset_dirty(page_min, page_max + TARGET_PAGE_SIZE,
VGA_DIRTY_FLAG);
}
}
static void tcx24_update_display(void *opaque)
{
TCXState *ts = opaque;
ram_addr_t page, page_min, page_max, cpage, page24;
int y, y_start, dd, ds;
uint8_t *d, *s;
uint32_t *cptr, *s24;
if (ds_get_bits_per_pixel(ts->ds) != 32)
return;
page = ts->vram_offset;
page24 = ts->vram24_offset;
cpage = ts->cplane_offset;
y_start = -1;
page_min = -1;
page_max = 0;
d = ds_get_data(ts->ds);
s = ts->vram;
s24 = ts->vram24;
cptr = ts->cplane;
dd = ds_get_linesize(ts->ds);
ds = 1024;
for(y = 0; y < ts->height; y += 4, page += TARGET_PAGE_SIZE,
page24 += TARGET_PAGE_SIZE, cpage += TARGET_PAGE_SIZE) {
if (check_dirty(page, page24, cpage)) {
if (y_start < 0)
y_start = y;
if (page < page_min)
page_min = page;
if (page > page_max)
page_max = page;
tcx24_draw_line32(ts, d, s, ts->width, cptr, s24);
d += dd;
s += ds;
cptr += ds;
s24 += ds;
tcx24_draw_line32(ts, d, s, ts->width, cptr, s24);
d += dd;
s += ds;
cptr += ds;
s24 += ds;
tcx24_draw_line32(ts, d, s, ts->width, cptr, s24);
d += dd;
s += ds;
cptr += ds;
s24 += ds;
tcx24_draw_line32(ts, d, s, ts->width, cptr, s24);
d += dd;
s += ds;
cptr += ds;
s24 += ds;
} else {
if (y_start >= 0) {
/* flush to display */
dpy_update(ts->ds, 0, y_start,
ts->width, y - y_start);
y_start = -1;
}
d += dd * 4;
s += ds * 4;
cptr += ds * 4;
s24 += ds * 4;
}
}
if (y_start >= 0) {
/* flush to display */
dpy_update(ts->ds, 0, y_start,
ts->width, y - y_start);
}
/* reset modified pages */
if (page_max >= page_min) {
reset_dirty(ts, page_min, page_max, page24, cpage);
}
}
static void tcx_invalidate_display(void *opaque)
{
TCXState *s = opaque;
int i;
for (i = 0; i < MAXX*MAXY; i += TARGET_PAGE_SIZE) {
cpu_physical_memory_set_dirty(s->vram_offset + i);
}
}
static void tcx24_invalidate_display(void *opaque)
{
TCXState *s = opaque;
int i;
tcx_invalidate_display(s);
for (i = 0; i < MAXX*MAXY * 4; i += TARGET_PAGE_SIZE) {
cpu_physical_memory_set_dirty(s->vram24_offset + i);
cpu_physical_memory_set_dirty(s->cplane_offset + i);
}
}
static void tcx_save(QEMUFile *f, void *opaque)
{
TCXState *s = opaque;
qemu_put_be16s(f, &s->height);
qemu_put_be16s(f, &s->width);
qemu_put_be16s(f, &s->depth);
qemu_put_buffer(f, s->r, 256);
qemu_put_buffer(f, s->g, 256);
qemu_put_buffer(f, s->b, 256);
qemu_put_8s(f, &s->dac_index);
qemu_put_8s(f, &s->dac_state);
}
static int tcx_load(QEMUFile *f, void *opaque, int version_id)
{
TCXState *s = opaque;
uint32_t dummy;
if (version_id != 3 && version_id != 4)
return -EINVAL;
if (version_id == 3) {
qemu_get_be32s(f, &dummy);
qemu_get_be32s(f, &dummy);
qemu_get_be32s(f, &dummy);
}
qemu_get_be16s(f, &s->height);
qemu_get_be16s(f, &s->width);
qemu_get_be16s(f, &s->depth);
qemu_get_buffer(f, s->r, 256);
qemu_get_buffer(f, s->g, 256);
qemu_get_buffer(f, s->b, 256);
qemu_get_8s(f, &s->dac_index);
qemu_get_8s(f, &s->dac_state);
update_palette_entries(s, 0, 256);
if (s->depth == 24)
tcx24_invalidate_display(s);
else
tcx_invalidate_display(s);
return 0;
}
static void tcx_reset(void *opaque)
{
TCXState *s = opaque;
/* Initialize palette */
memset(s->r, 0, 256);
memset(s->g, 0, 256);
memset(s->b, 0, 256);
s->r[255] = s->g[255] = s->b[255] = 255;
update_palette_entries(s, 0, 256);
memset(s->vram, 0, MAXX*MAXY);
cpu_physical_memory_reset_dirty(s->vram_offset, s->vram_offset +
MAXX * MAXY * (1 + 4 + 4), VGA_DIRTY_FLAG);
s->dac_index = 0;
s->dac_state = 0;
}
static uint32_t tcx_dac_readl(void *opaque, target_phys_addr_t addr)
{
return 0;
}
static void tcx_dac_writel(void *opaque, target_phys_addr_t addr, uint32_t val)
{
TCXState *s = opaque;
switch (addr) {
case 0:
s->dac_index = val >> 24;
s->dac_state = 0;
break;
case 4:
switch (s->dac_state) {
case 0:
s->r[s->dac_index] = val >> 24;
update_palette_entries(s, s->dac_index, s->dac_index + 1);
s->dac_state++;
break;
case 1:
s->g[s->dac_index] = val >> 24;
update_palette_entries(s, s->dac_index, s->dac_index + 1);
s->dac_state++;
break;
case 2:
s->b[s->dac_index] = val >> 24;
update_palette_entries(s, s->dac_index, s->dac_index + 1);
s->dac_index = (s->dac_index + 1) & 255; // Index autoincrement
default:
s->dac_state = 0;
break;
}
break;
default:
break;
}
return;
}
static CPUReadMemoryFunc *tcx_dac_read[3] = {
NULL,
NULL,
tcx_dac_readl,
};
static CPUWriteMemoryFunc *tcx_dac_write[3] = {
NULL,
NULL,
tcx_dac_writel,
};
static uint32_t tcx_dummy_readl(void *opaque, target_phys_addr_t addr)
{
return 0;
}
static void tcx_dummy_writel(void *opaque, target_phys_addr_t addr,
uint32_t val)
{
}
static CPUReadMemoryFunc *tcx_dummy_read[3] = {
NULL,
NULL,
tcx_dummy_readl,
};
static CPUWriteMemoryFunc *tcx_dummy_write[3] = {
NULL,
NULL,
tcx_dummy_writel,
};
void tcx_init(target_phys_addr_t addr, int vram_size, int width, int height,
int depth)
{
TCXState *s;
int io_memory, dummy_memory;
ram_addr_t vram_offset;
int size;
uint8_t *vram_base;
vram_offset = qemu_ram_alloc(vram_size * (1 + 4 + 4));
vram_base = qemu_get_ram_ptr(vram_offset);
s = qemu_mallocz(sizeof(TCXState));
s->addr = addr;
s->vram_offset = vram_offset;
s->width = width;
s->height = height;
s->depth = depth;
// 8-bit plane
s->vram = vram_base;
size = vram_size;
cpu_register_physical_memory(addr + 0x00800000ULL, size, vram_offset);
vram_offset += size;
vram_base += size;
io_memory = cpu_register_io_memory(0, tcx_dac_read, tcx_dac_write, s);
cpu_register_physical_memory(addr + 0x00200000ULL, TCX_DAC_NREGS,
io_memory);
dummy_memory = cpu_register_io_memory(0, tcx_dummy_read, tcx_dummy_write,
s);
cpu_register_physical_memory(addr + 0x00700000ULL, TCX_TEC_NREGS,
dummy_memory);
if (depth == 24) {
// 24-bit plane
size = vram_size * 4;
s->vram24 = (uint32_t *)vram_base;
s->vram24_offset = vram_offset;
cpu_register_physical_memory(addr + 0x02000000ULL, size, vram_offset);
vram_offset += size;
vram_base += size;
// Control plane
size = vram_size * 4;
s->cplane = (uint32_t *)vram_base;
s->cplane_offset = vram_offset;
cpu_register_physical_memory(addr + 0x0a000000ULL, size, vram_offset);
s->ds = graphic_console_init(tcx24_update_display,
tcx24_invalidate_display,
tcx24_screen_dump, NULL, s);
} else {
cpu_register_physical_memory(addr + 0x00300000ULL, TCX_THC_NREGS_8,
dummy_memory);
s->ds = graphic_console_init(tcx_update_display,
tcx_invalidate_display,
tcx_screen_dump, NULL, s);
}
// NetBSD writes here even with 8-bit display
cpu_register_physical_memory(addr + 0x00301000ULL, TCX_THC_NREGS_24,
dummy_memory);
register_savevm("tcx", addr, 4, tcx_save, tcx_load, s);
qemu_register_reset(tcx_reset, 0, s);
tcx_reset(s);
qemu_console_resize(s->ds, width, height);
}
static void tcx_screen_dump(void *opaque, const char *filename)
{
TCXState *s = opaque;
FILE *f;
uint8_t *d, *d1, v;
int y, x;
f = fopen(filename, "wb");
if (!f)
return;
fprintf(f, "P6\n%d %d\n%d\n", s->width, s->height, 255);
d1 = s->vram;
for(y = 0; y < s->height; y++) {
d = d1;
for(x = 0; x < s->width; x++) {
v = *d;
fputc(s->r[v], f);
fputc(s->g[v], f);
fputc(s->b[v], f);
d++;
}
d1 += MAXX;
}
fclose(f);
return;
}
static void tcx24_screen_dump(void *opaque, const char *filename)
{
TCXState *s = opaque;
FILE *f;
uint8_t *d, *d1, v;
uint32_t *s24, *cptr, dval;
int y, x;
f = fopen(filename, "wb");
if (!f)
return;
fprintf(f, "P6\n%d %d\n%d\n", s->width, s->height, 255);
d1 = s->vram;
s24 = s->vram24;
cptr = s->cplane;
for(y = 0; y < s->height; y++) {
d = d1;
for(x = 0; x < s->width; x++, d++, s24++) {
if ((*cptr++ & 0xff000000) == 0x03000000) { // 24-bit direct
dval = *s24 & 0x00ffffff;
fputc((dval >> 16) & 0xff, f);
fputc((dval >> 8) & 0xff, f);
fputc(dval & 0xff, f);
} else {
v = *d;
fputc(s->r[v], f);
fputc(s->g[v], f);
fputc(s->b[v], f);
}
}
d1 += MAXX;
}
fclose(f);
return;
}
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