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9933ffa3d9
Bochs/bochs/iodev/display/voodoo.cc
Volker Ruppert 9933ffa3d9 vga refresh framework changes 
- renamed trigger_timer() methods to refresh_display()
- new argument 'redraw' added to force a refresh of the entire screen
  (used in snapshot mode)
- siminterface method refresh_vga() now checks if the Bochs gui init is complete
- use SIM->refresh_vga() in some more cases
2012-10-28 08:23:39 +00:00

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/////////////////////////////////////////////////////////////////////////
// $Id$
/////////////////////////////////////////////////////////////////////////
//
// Copyright (C) 2012 The Bochs Project
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2 of the License, or (at your option) any later version.
//
// This library 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
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
/////////////////////////////////////////////////////////////////////////
/*
* Portion of this software comes with the following license
*/
/***************************************************************************
Copyright Aaron Giles
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in
the documentation and/or other materials provided with the
distribution.
* Neither the name 'MAME' nor the names of its contributors may be
used to endorse or promote products derived from this software
without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY AARON GILES ''AS IS'' AND ANY EXPRESS OR
IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL AARON GILES BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.
***************************************************************************/
// 3dfx Voodoo Graphics (SST-1/2) emulation (based on a patch for DOSBox)
// Define BX_PLUGGABLE in files that can be compiled into plugins. For
// platforms that require a special tag on exported symbols, BX_PLUGGABLE
// is used to know when we are exporting symbols and when we are importing.
#define BX_PLUGGABLE
#include "iodev.h"
#if BX_SUPPORT_PCI && BX_SUPPORT_VOODOO
#include "pci.h"
#include "vgacore.h"
#include "voodoo.h"
#include "virt_timer.h"
#define LOG_THIS theVoodooDevice->
bx_voodoo_c* theVoodooDevice = NULL;
#include "voodoo_types.h"
#include "voodoo_data.h"
voodoo_state *v;
#include "voodoo_main.h"
#include "voodoo_func.h"
// device plugin entry points
int libvoodoo_LTX_plugin_init(plugin_t *plugin, plugintype_t type, int argc, char *argv[])
{
theVoodooDevice = new bx_voodoo_c();
BX_REGISTER_DEVICE_DEVMODEL(plugin, type, theVoodooDevice, BX_PLUGIN_VOODOO);
return 0; // Success
}
void libvoodoo_LTX_plugin_fini(void)
{
delete theVoodooDevice;
}
// the device object
bx_voodoo_c::bx_voodoo_c()
{
put("voodoo", "SST-1");
s.mode_change_timer_id = BX_NULL_TIMER_HANDLE;
s.update_timer_id = BX_NULL_TIMER_HANDLE;
}
bx_voodoo_c::~bx_voodoo_c()
{
free(v->fbi.ram);
free(v->tmu[0].ram);
free(v->tmu[1].ram);
delete v;
BX_DEBUG(("Exit"));
}
void bx_voodoo_c::init(void)
{
BX_VOODOO_THIS s.devfunc = 0x00;
DEV_register_pci_handlers(this, &BX_VOODOO_THIS s.devfunc, BX_PLUGIN_VOODOO,
"Experimental 3dfx Voodoo Graphics (SST-1/2)");
for (unsigned i=0; i<256; i++) {
BX_VOODOO_THIS pci_conf[i] = 0x0;
}
BX_VOODOO_THIS pci_base_address[0] = 0;
if (BX_VOODOO_THIS s.mode_change_timer_id == BX_NULL_TIMER_HANDLE) {
BX_VOODOO_THIS s.mode_change_timer_id = bx_virt_timer.register_timer(this, mode_change_timer_handler,
1000, 0, 0, "voodoo_mode_change");
}
if (BX_VOODOO_THIS s.update_timer_id == BX_NULL_TIMER_HANDLE) {
BX_VOODOO_THIS s.update_timer_id = bx_virt_timer.register_timer(this, update_timer_handler,
50000, 1, 0, "voodoo_update");
}
BX_VOODOO_THIS s.vdraw.clock_enabled = 1;
v = new voodoo_state;
voodoo_init();
BX_INFO(("Voodoo initialized"));
}
void bx_voodoo_c::reset(unsigned type)
{
unsigned i;
static const struct reset_vals_t {
unsigned addr;
unsigned char val;
} reset_vals[] = {
{ 0x00, 0x1a }, { 0x01, 0x12 },
{ 0x02, 0x01 }, { 0x03, 0x00 },
{ 0x04, 0x00 }, { 0x05, 0x00 }, // command io / memory
{ 0x06, 0x00 }, { 0x07, 0x00 }, // status
{ 0x08, 0x01 }, // revision number
{ 0x09, 0x00 }, // interface
{ 0x0a, 0x00 }, // class_sub
{ 0x0b, 0x00 }, // class_base generic
{ 0x0e, 0x00 }, // header type generic
// address space 0x10 - 0x13
{ 0x10, 0x00 }, { 0x11, 0x00 },
{ 0x12, 0x00 }, { 0x13, 0x00 },
{ 0x3c, 0x00 }, // IRQ
{ 0x3d, BX_PCI_INTA }, // INT
// initEnable
{ 0x40, 0x00 }, { 0x41, 0x00 },
{ 0x42, 0x00 }, { 0x43, 0x00 },
// busSnoop0
{ 0x44, 0x00 }, { 0x45, 0x00 },
{ 0x46, 0x00 }, { 0x47, 0x00 },
// busSnoop1
{ 0x48, 0x00 }, { 0x49, 0x00 },
{ 0x4a, 0x00 }, { 0x4b, 0x00 },
};
for (i = 0; i < sizeof(reset_vals) / sizeof(*reset_vals); ++i) {
BX_VOODOO_THIS pci_conf[reset_vals[i].addr] = reset_vals[i].val;
}
// Deassert IRQ
set_irq_level(0);
}
void bx_voodoo_c::register_state(void)
{
char name[8];
int i, j, k;
bx_list_c *list = new bx_list_c(SIM->get_bochs_root(), "voodoo", "Voodoo State");
bx_list_c *vstate = new bx_list_c(list, "vstate", "Voodoo Device State");
new bx_shadow_data_c(vstate, "reg", (Bit8u*)v->reg, sizeof(v->reg));
new bx_shadow_num_c(vstate, "alt_regmap", &v->alt_regmap);
new bx_shadow_num_c(vstate, "pci_init_enable", &v->pci.init_enable, BASE_HEX);
bx_list_c *dac = new bx_list_c(vstate, "dac", "DAC");
for (i = 0; i < 8; i++) {
sprintf(name, "reg%d", i);
new bx_shadow_num_c(dac, name, &v->dac.reg[i], BASE_HEX);
}
new bx_shadow_num_c(dac, "read_result", &v->dac.read_result, BASE_HEX);
bx_list_c *fbi = new bx_list_c(vstate, "fbi", "framebuffer");
new bx_shadow_data_c(fbi, "ram", v->fbi.ram, (4 << 20));
new bx_shadow_num_c(fbi, "rgboffs0", &v->fbi.rgboffs[0], BASE_HEX);
new bx_shadow_num_c(fbi, "rgboffs1", &v->fbi.rgboffs[1], BASE_HEX);
new bx_shadow_num_c(fbi, "rgboffs2", &v->fbi.rgboffs[2], BASE_HEX);
new bx_shadow_num_c(fbi, "auxoffs", &v->fbi.auxoffs, BASE_HEX);
new bx_shadow_num_c(fbi, "frontbuf", &v->fbi.frontbuf);
new bx_shadow_num_c(fbi, "backbuf", &v->fbi.backbuf);
new bx_shadow_num_c(fbi, "swaps_pending", &v->fbi.swaps_pending);
new bx_shadow_num_c(fbi, "yorigin", &v->fbi.yorigin);
new bx_shadow_num_c(fbi, "width", &v->fbi.width);
new bx_shadow_num_c(fbi, "height", &v->fbi.height);
new bx_shadow_num_c(fbi, "rowpixels", &v->fbi.rowpixels);
new bx_shadow_num_c(fbi, "vblank", &v->fbi.vblank);
new bx_shadow_num_c(fbi, "vblank_count", &v->fbi.vblank_count);
new bx_shadow_bool_c(fbi, "vblank_swap_pending", &v->fbi.vblank_swap_pending);
new bx_shadow_num_c(fbi, "vblank_swap", &v->fbi.vblank_swap);
new bx_shadow_num_c(fbi, "vblank_dont_swap", &v->fbi.vblank_dont_swap);
new bx_shadow_bool_c(fbi, "cheating_allowed", &v->fbi.cheating_allowed);
new bx_shadow_num_c(fbi, "sign", &v->fbi.sign);
new bx_shadow_num_c(fbi, "ax", &v->fbi.ax);
new bx_shadow_num_c(fbi, "ay", &v->fbi.ay);
new bx_shadow_num_c(fbi, "bx", &v->fbi.bx);
new bx_shadow_num_c(fbi, "by", &v->fbi.by);
new bx_shadow_num_c(fbi, "cx", &v->fbi.cx);
new bx_shadow_num_c(fbi, "cy", &v->fbi.cy);
new bx_shadow_num_c(fbi, "startr", &v->fbi.startr);
new bx_shadow_num_c(fbi, "startg", &v->fbi.startg);
new bx_shadow_num_c(fbi, "startb", &v->fbi.startb);
new bx_shadow_num_c(fbi, "starta", &v->fbi.starta);
new bx_shadow_num_c(fbi, "startz", &v->fbi.startz);
new bx_shadow_num_c(fbi, "startw", &v->fbi.startw);
new bx_shadow_num_c(fbi, "drdx", &v->fbi.drdx);
new bx_shadow_num_c(fbi, "dgdx", &v->fbi.dgdx);
new bx_shadow_num_c(fbi, "dbdx", &v->fbi.dbdx);
new bx_shadow_num_c(fbi, "dadx", &v->fbi.dadx);
new bx_shadow_num_c(fbi, "dzdx", &v->fbi.dzdx);
new bx_shadow_num_c(fbi, "dwdx", &v->fbi.dwdx);
new bx_shadow_num_c(fbi, "drdy", &v->fbi.drdy);
new bx_shadow_num_c(fbi, "dgdy", &v->fbi.dgdy);
new bx_shadow_num_c(fbi, "dbdy", &v->fbi.dbdy);
new bx_shadow_num_c(fbi, "dady", &v->fbi.dady);
new bx_shadow_num_c(fbi, "dzdy", &v->fbi.dzdy);
new bx_shadow_num_c(fbi, "dwdy", &v->fbi.dwdy);
bx_list_c *fogblend = new bx_list_c(fbi, "fogblend", "");
for (i = 0; i < 64; i++) {
sprintf(name, "%d", i);
new bx_shadow_num_c(fogblend, name, &v->fbi.fogblend[i]);
}
bx_list_c *fogdelta = new bx_list_c(fbi, "fogdelta", "");
for (i = 0; i < 64; i++) {
sprintf(name, "%d", i);
new bx_shadow_num_c(fogdelta, name, &v->fbi.fogdelta[i]);
}
new bx_shadow_data_c(fbi, "clut", (Bit8u*)v->fbi.clut, sizeof(v->fbi.clut));
new bx_shadow_bool_c(fbi, "clut_dirty", &v->fbi.clut_dirty);
bx_list_c *tmu = new bx_list_c(vstate, "tmu", "textures");
for (i = 0; i < 2; i++) {
sprintf(name, "%d", i);
bx_list_c *num = new bx_list_c(tmu, name, "");
new bx_shadow_data_c(num, "ram", v->tmu[i].ram, (4 << 20));
new bx_shadow_bool_c(num, "regdirty", &v->tmu[i].regdirty);
new bx_shadow_num_c(num, "starts", &v->tmu[i].starts);
new bx_shadow_num_c(num, "startt", &v->tmu[i].startt);
new bx_shadow_num_c(num, "startw", &v->tmu[i].startw);
new bx_shadow_num_c(num, "dsdx", &v->tmu[i].dsdx);
new bx_shadow_num_c(num, "dtdx", &v->tmu[i].dtdx);
new bx_shadow_num_c(num, "dwdx", &v->tmu[i].dwdx);
new bx_shadow_num_c(num, "dsdy", &v->tmu[i].dsdy);
new bx_shadow_num_c(num, "dtdy", &v->tmu[i].dtdy);
new bx_shadow_num_c(num, "dwdy", &v->tmu[i].dwdy);
new bx_shadow_num_c(num, "lodmin", &v->tmu[i].lodmin);
new bx_shadow_num_c(num, "lodmax", &v->tmu[i].lodmax);
new bx_shadow_num_c(num, "lodbias", &v->tmu[i].lodbias);
new bx_shadow_num_c(num, "lodmask", &v->tmu[i].lodmask);
bx_list_c *lodoffs = new bx_list_c(num, "lodoffset", "");
for (j = 0; j < 9; j++) {
sprintf(name, "%d", j);
new bx_shadow_num_c(lodoffs, name, &v->tmu[i].lodoffset[j]);
}
new bx_shadow_num_c(num, "detailmax", &v->tmu[i].detailmax);
new bx_shadow_num_c(num, "detailbias", &v->tmu[i].detailbias);
new bx_shadow_num_c(num, "wmask", &v->tmu[i].wmask);
new bx_shadow_num_c(num, "hmask", &v->tmu[i].hmask);
bx_list_c *ncc = new bx_list_c(num, "ncc", "");
for (j = 0; j < 2; j++) {
sprintf(name, "%d", j);
bx_list_c *ncct = new bx_list_c(ncc, name, "");
new bx_shadow_bool_c(ncct, "dirty", &v->tmu[i].ncc[j].dirty);
bx_list_c *ir = new bx_list_c(ncct, "ir", "");
bx_list_c *ig = new bx_list_c(ncct, "ig", "");
bx_list_c *ib = new bx_list_c(ncct, "ib", "");
bx_list_c *qr = new bx_list_c(ncct, "qr", "");
bx_list_c *qg = new bx_list_c(ncct, "qg", "");
bx_list_c *qb = new bx_list_c(ncct, "qb", "");
for (k = 0; k < 4; k++) {
sprintf(name, "%d", k);
new bx_shadow_num_c(ir, name, &v->tmu[i].ncc[j].ir[k]);
new bx_shadow_num_c(ig, name, &v->tmu[i].ncc[j].ig[k]);
new bx_shadow_num_c(ib, name, &v->tmu[i].ncc[j].ib[k]);
new bx_shadow_num_c(qr, name, &v->tmu[i].ncc[j].qr[k]);
new bx_shadow_num_c(qg, name, &v->tmu[i].ncc[j].qg[k]);
new bx_shadow_num_c(qb, name, &v->tmu[i].ncc[j].qb[k]);
}
bx_list_c *y = new bx_list_c(ncct, "y", "");
for (k = 0; k < 16; k++) {
sprintf(name, "%d", k);
new bx_shadow_num_c(y, name, &v->tmu[i].ncc[j].y[k]);
}
new bx_shadow_data_c(ncct, "texel", (Bit8u*)v->tmu[i].ncc[j].texel, 256 * sizeof(rgb_t));
}
new bx_shadow_data_c(num, "palette", (Bit8u*)v->tmu[i].palette, 256 * sizeof(rgb_t));
new bx_shadow_data_c(num, "palettea", (Bit8u*)v->tmu[i].palettea, 256 * sizeof(rgb_t));
}
new bx_shadow_num_c(vstate, "send_config", &v->send_config);
bx_list_c *vdraw = new bx_list_c(list, "vdraw", "Voodoo Draw State");
new bx_shadow_bool_c(vdraw, "clock_enabled", &BX_VOODOO_THIS s.vdraw.clock_enabled);
new bx_shadow_bool_c(vdraw, "output_on", &BX_VOODOO_THIS s.vdraw.output_on);
new bx_shadow_bool_c(vdraw, "override_on", &BX_VOODOO_THIS s.vdraw.override_on);
register_pci_state(list);
}
void bx_voodoo_c::after_restore_state(void)
{
if (DEV_pci_set_base_mem(BX_VOODOO_THIS_PTR, mem_read_handler, mem_write_handler,
&BX_VOODOO_THIS pci_base_address[0],
&BX_VOODOO_THIS pci_conf[0x10],
0x1000000)) {
BX_INFO(("new mem base address: 0x%08x", BX_VOODOO_THIS pci_base_address[0]));
}
// force update
v->fbi.video_changed = 1;
BX_VOODOO_THIS s.vdraw.override_on = !BX_VOODOO_THIS s.vdraw.override_on;
BX_VOODOO_THIS s.vdraw.frame_start = bx_pc_system.time_usec();
mode_change_timer_handler(NULL);
}
bx_bool bx_voodoo_c::mem_read_handler(bx_phy_address addr, unsigned len,
void *data, void *param)
{
Bit32u *data_ptr = (Bit32u*)data;
*data_ptr = voodoo_r((addr>>2) & 0x3FFFFF);
return 1;
}
bx_bool bx_voodoo_c::mem_write_handler(bx_phy_address addr, unsigned len,
void *data, void *param)
{
Bit32u val = *(Bit32u*)data;
if (len == 4) {
voodoo_w((addr>>2) & 0x3FFFFF, val, 0xffffffff);
} else if (len == 2) {
if (addr & 3) {
voodoo_w((addr>>2) & 0x3FFFFF, val<<16, 0xffff0000);
} else {
voodoo_w((addr>>2) & 0x3FFFFF, val, 0x0000ffff);
}
}
return 1;
}
void bx_voodoo_c::mode_change_timer_handler(void *this_ptr)
{
UNUSED(this_ptr);
BX_VOODOO_THIS s.vdraw.screen_update_pending = 0;
if ((!BX_VOODOO_THIS s.vdraw.clock_enabled || !BX_VOODOO_THIS s.vdraw.output_on) && BX_VOODOO_THIS s.vdraw.override_on) {
// switching off
bx_virt_timer.deactivate_timer(BX_VOODOO_THIS s.update_timer_id);
DEV_vga_set_override(0, NULL);
BX_VOODOO_THIS s.vdraw.override_on = 0;
}
if ((BX_VOODOO_THIS s.vdraw.clock_enabled && BX_VOODOO_THIS s.vdraw.output_on) && !BX_VOODOO_THIS s.vdraw.override_on) {
if ((v->reg[hSync].u == 0) || (v->reg[vSync].u == 0))
return;
// switching on
int htotal = ((v->reg[hSync].u >> 16) & 0x3ff) + 1 + (v->reg[hSync].u & 0xff) + 1;
int vtotal = ((v->reg[vSync].u >> 16) & 0xfff) + (v->reg[vSync].u & 0xfff);
int vsync = ((v->reg[vSync].u >> 16) & 0xfff);
double hfreq = 50000000.0 / htotal; // Voodoo1 50 MHz
if (((v->reg[fbiInit1].u >> 20) & 3) == 1) { // VCLK div 2
hfreq /= 2;
}
unsigned vfreq = (unsigned)(hfreq / vtotal);
BX_VOODOO_THIS s.vdraw.vtotal_usec = 1000000 / vfreq;
BX_VOODOO_THIS s.vdraw.vsync_usec = vsync * (unsigned)(1000000 / hfreq);
DEV_vga_set_override(1, BX_VOODOO_THIS_PTR);
BX_VOODOO_THIS s.vdraw.override_on = 1;
BX_VOODOO_THIS s.vdraw.width = v->fbi.width+1;
BX_VOODOO_THIS s.vdraw.height = v->fbi.height;
BX_INFO(("Voodoo output %dx%d@%uHz", v->fbi.width, v->fbi.height, vfreq));
bx_gui->dimension_update(v->fbi.width+1, v->fbi.height, 0, 0, 16);
update_timer_handler(NULL);
bx_virt_timer.activate_timer(BX_VOODOO_THIS s.update_timer_id, BX_VOODOO_THIS s.vdraw.vtotal_usec, 1);
}
}
void bx_voodoo_c::refresh_display(void *this_ptr, bx_bool redraw)
{
if (redraw) {
redraw_area(0, 0, v->fbi.width, v->fbi.height);
}
update_timer_handler(this_ptr);
}
void bx_voodoo_c::update_timer_handler(void *this_ptr)
{
UNUSED(this_ptr);
update();
bx_gui->flush();
}
void bx_voodoo_c::update(void)
{
unsigned pitch;
unsigned xc, yc, xti, yti;
unsigned r, c, w, h;
int i;
unsigned long colour;
Bit8u * vid_ptr, * vid_ptr2;
Bit8u * tile_ptr, * tile_ptr2;
bx_svga_tileinfo_t info;
BX_VOODOO_THIS s.vdraw.frame_start = bx_pc_system.time_usec();
if (v->fbi.vblank_swap_pending) {
swap_buffers(v);
}
rectangle re;
re.min_x = re.min_y = 0;
re.max_x = v->fbi.width;
re.max_y = v->fbi.height;
if (!voodoo_update(&re))
return;
Bit8u *disp_ptr = (Bit8u*)(v->fbi.ram + v->fbi.rgboffs[v->fbi.frontbuf]);
pitch = v->fbi.rowpixels * 2;
if (bx_gui->graphics_tile_info_common(&info)) {
if (info.snapshot_mode) {
vid_ptr = disp_ptr;
tile_ptr = bx_gui->get_snapshot_buffer();
if (tile_ptr != NULL) {
for (yc = 0; yc < BX_VOODOO_THIS s.vdraw.height; yc++) {
memcpy(tile_ptr, vid_ptr, info.pitch);
vid_ptr += pitch;
tile_ptr += info.pitch;
}
}
} else if (info.is_indexed) {
BX_ERROR(("current guest pixel format is unsupported on indexed colour host displays"));
} else {
for (yc=0, yti = 0; yc<BX_VOODOO_THIS s.vdraw.height; yc+=Y_TILESIZE, yti++) {
for (xc=0, xti = 0; xc<BX_VOODOO_THIS s.vdraw.width; xc+=X_TILESIZE, xti++) {
vid_ptr = disp_ptr + (yc * pitch + (xc<<1));
tile_ptr = bx_gui->graphics_tile_get(xc, yc, &w, &h);
for (r=0; r<h; r++) {
vid_ptr2 = vid_ptr;
tile_ptr2 = tile_ptr;
for (c=0; c<w; c++) {
colour = *(vid_ptr2++);
colour |= *(vid_ptr2++) << 8;
colour = MAKE_COLOUR(
colour & 0x001f, 5, info.blue_shift, info.blue_mask,
colour & 0x07e0, 11, info.green_shift, info.green_mask,
colour & 0xf800, 16, info.red_shift, info.red_mask);
if (info.is_little_endian) {
for (i=0; i<info.bpp; i+=8) {
*(tile_ptr2++) = (Bit8u)(colour >> i);
}
} else {
for (i=info.bpp-8; i>-8; i-=8) {
*(tile_ptr2++) = (Bit8u)(colour >> i);
}
}
}
vid_ptr += pitch;
tile_ptr += info.pitch;
}
bx_gui->graphics_tile_update_in_place(xc, yc, w, h);
}
}
}
} else {
BX_PANIC(("cannot get svga tile info"));
}
}
void bx_voodoo_c::redraw_area(unsigned x0, unsigned y0, unsigned width,
unsigned height)
{
// TODO: implement tile-based update mechanism
v->fbi.video_changed = 1;
}
bx_bool bx_voodoo_c::get_retrace(void)
{
Bit64u time_in_frame = bx_pc_system.time_usec() - BX_VOODOO_THIS s.vdraw.frame_start;
if (time_in_frame > BX_VOODOO_THIS s.vdraw.vsync_usec) return 1;
else return 0;
}
void bx_voodoo_c::output_enable(bx_bool enabled)
{
if (BX_VOODOO_THIS s.vdraw.output_on != enabled) {
BX_VOODOO_THIS s.vdraw.output_on = enabled;
update_screen_start();
}
}
void bx_voodoo_c::update_screen_start(void)
{
if (!BX_VOODOO_THIS s.vdraw.screen_update_pending) {
BX_VOODOO_THIS s.vdraw.screen_update_pending = 1;
bx_virt_timer.activate_timer(BX_VOODOO_THIS s.mode_change_timer_id, 1000, 0);
}
}
void bx_voodoo_c::set_irq_level(bx_bool level)
{
DEV_pci_set_irq(BX_VOODOO_THIS s.devfunc, BX_VOODOO_THIS pci_conf[0x3d], level);
}
// pci configuration space read callback handler
Bit32u bx_voodoo_c::pci_read_handler(Bit8u address, unsigned io_len)
{
Bit32u value = 0;
for (unsigned i=0; i<io_len; i++) {
value |= (BX_VOODOO_THIS pci_conf[address+i] << (i*8));
}
if (io_len == 1)
BX_DEBUG(("read PCI register 0x%02x value 0x%02x", address, value));
else if (io_len == 2)
BX_DEBUG(("read PCI register 0x%02x value 0x%04x", address, value));
else if (io_len == 4)
BX_DEBUG(("read PCI register 0x%02x value 0x%08x", address, value));
return value;
}
// pci configuration space write callback handler
void bx_voodoo_c::pci_write_handler(Bit8u address, Bit32u value, unsigned io_len)
{
Bit8u value8, oldval;
bx_bool baseaddr_change = 0;
if ((address >= 0x14) && (address < 0x34))
return;
for (unsigned i=0; i<io_len; i++) {
value8 = (value >> (i*8)) & 0xFF;
oldval = BX_VOODOO_THIS pci_conf[address+i];
switch (address+i) {
case 0x04:
value8 &= 0x02;
break;
case 0x3c:
if (value8 != oldval) {
BX_INFO(("new irq line = %d", value8));
}
break;
case 0x10:
value8 = (value8 & 0xf0) | (oldval & 0x0f);
case 0x11:
case 0x12:
case 0x13:
baseaddr_change |= (value8 != oldval);
break;
case 0x40:
case 0x41:
v->pci.init_enable &= ~(0xff << (i*8));
v->pci.init_enable |= (value8 << (i*8));
break;
case 0xc0:
BX_VOODOO_THIS s.vdraw.clock_enabled = 1;
update_screen_start();
break;
case 0xe0:
BX_VOODOO_THIS s.vdraw.clock_enabled = 0;
update_screen_start();
break;
default:
value8 = oldval;
}
BX_VOODOO_THIS pci_conf[address+i] = value8;
}
if (baseaddr_change) {
if (DEV_pci_set_base_mem(BX_VOODOO_THIS_PTR, mem_read_handler, mem_write_handler,
&BX_VOODOO_THIS pci_base_address[0],
&BX_VOODOO_THIS pci_conf[0x10],
0x1000000)) {
BX_INFO(("new mem base address: 0x%08x", BX_VOODOO_THIS pci_base_address[0]));
}
}
if (io_len == 1)
BX_DEBUG(("write PCI register 0x%02x value 0x%02x", address, value));
else if (io_len == 2)
BX_DEBUG(("write PCI register 0x%02x value 0x%04x", address, value));
else if (io_len == 4)
BX_DEBUG(("write PCI register 0x%02x value 0x%08x", address, value));
}
#endif // BX_SUPPORT_PCI && BX_SUPPORT_VOODOO
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