Macintosh-Tools/dingusppc
1
0
Fork 0
mirror of https://github.com/dingusdev/dingusppc.git synced 2024-06-11 04:29:37 +00:00
Code Issues Projects Releases Wiki Activity

ATIRage: hack to support OF output.

Browse Source
This commit is contained in:
Maxim Poliakovski 2022-03-29 01:54:36 +02:00
parent 89d453b4be
commit c967eb3c65
1 changed files with 25 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

33
devices/video/atirage.cpp
View File

@ -19,6 +19,7 @@ You should have received a copy of the GNU General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#include <core/timermanager.h>
#include <devices/common/hwcomponent.h>
#include <devices/common/pci/pcidevice.h>
#include <devices/video/atirage.h>
@ -89,7 +90,7 @@ static const std::map<uint16_t, std::string> mach64_reg_names = {
ATIRage::ATIRage(uint16_t dev_id, uint32_t vmem_size_mb)
: PCIDevice("ati-rage"), VideoCtrlBase()
: PCIDevice("ati-rage"), VideoCtrlBase(1024, 768)
{
uint8_t asic_id;
@ -330,15 +331,15 @@ void ATIRage::write_reg(uint32_t offset, uint32_t value, uint32_t size)
READ_DWORD_LE_A(&this->mm_regs[offset & ~3]));
}
if ((this->mm_regs[ATI_CRTC_GEN_CNTL+3] & 2) &&
!(this->mm_regs[ATI_CRTC_GEN_CNTL] & 0x40)) {
int32_t src_offset = (READ_DWORD_LE_A(&this->mm_regs[ATI_CRTC_OFF_PITCH]) & 0xFFFF) * 8;
//if ((this->mm_regs[ATI_CRTC_GEN_CNTL+3] & 2) &&
// !(this->mm_regs[ATI_CRTC_GEN_CNTL] & 0x40)) {
// int32_t src_offset = (READ_DWORD_LE_A(&this->mm_regs[ATI_CRTC_OFF_PITCH]) & 0xFFFF) * 8;
this->fb_pitch = ((READ_DWORD_LE_A(&this->mm_regs[ATI_CRTC_OFF_PITCH])) >> 19) & 0x1FF8;
// this->fb_pitch = ((READ_DWORD_LE_A(&this->mm_regs[ATI_CRTC_OFF_PITCH])) >> 19) & 0x1FF8;
this->fb_ptr = &this->vram_ptr[src_offset];
this->update_screen();
}
// this->fb_ptr = &this->vram_ptr[src_offset];
// this->update_screen();
//}
}
bool ATIRage::io_access_allowed(uint32_t offset) {
@ -515,6 +516,12 @@ void ATIRage::crtc_enable() {
this->refresh_rate = pixel_clock / hori_total / vert_total;
int32_t src_offset = (READ_DWORD_LE_A(&this->mm_regs[ATI_CRTC_OFF_PITCH]) & 0xFFFF) * 8;
this->fb_pitch = ((READ_DWORD_LE_A(&this->mm_regs[ATI_CRTC_OFF_PITCH])) >> 19) & 0x1FF8;
this->fb_ptr = &this->vram_ptr[src_offset];
// specify framebuffer converter (hardcoded for now)
this->convert_fb_cb = [this](uint8_t *dst_buf, int dst_pitch) {
this->convert_frame_8bpp(dst_buf, dst_pitch);
@ -529,6 +536,16 @@ void ATIRage::crtc_enable() {
LOG_F(INFO, "VPLL frequency: %f MHz", vpll_freq * 1e-6);
LOG_F(INFO, "Pixel (dot) clock: %f MHz", this->pixel_clock * 1e-6);
LOG_F(INFO, "Refresh rate: %f Hz", this->refresh_rate);
uint64_t refresh_interval = static_cast<uint64_t>(1.0f / this->refresh_rate * NS_PER_SEC + 0.5);
TimerManager::get_instance()->add_cyclic_timer(
refresh_interval,
[this]() {
this->update_screen();
}
);
this->update_screen();
} else {
LOG_F(WARNING, "ATI Rage: VLCK source != VPLL!");
}