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Some work on VdSwap.

This commit is contained in:
gibbed 2015-05-29 15:40:16 -05:00
parent 35bea36fc4
commit 07c0724cf0
1 changed files with 21 additions and 12 deletions
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33
src/xenia/kernel/xboxkrnl_video.cc
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@ -411,27 +411,38 @@ SHIM_CALL VdRetrainEDRAM_shim(PPCContext* ppc_state, KernelState* state) {
}
SHIM_CALL VdSwap_shim(PPCContext* ppc_state, KernelState* state) {
uint32_t unk0 = SHIM_GET_ARG_32(0); // ptr into primary ringbuffer
uint32_t unk1 = SHIM_GET_ARG_32(1);
uint32_t buffer_ptr = SHIM_GET_ARG_32(0); // ptr into primary ringbuffer
uint32_t fetch_ptr = SHIM_GET_ARG_32(1); // frontbuffer texture fetch
uint32_t unk2 = SHIM_GET_ARG_32(2);
uint32_t unk3 = SHIM_GET_ARG_32(3); // ptr to 0xBEEF0000
uint32_t unk4 = SHIM_GET_ARG_32(4); // 0xBEEF0001
uint32_t unk3 = SHIM_GET_ARG_32(3); // buffer from VdGetSystemCommandBuffer
uint32_t unk4 = SHIM_GET_ARG_32(4); // pointer from VdGetSystemCommandBuffer (0xBEEF0001)
uint32_t frontbuffer_ptr = SHIM_GET_ARG_32(5); // ptr to frontbuffer address
uint32_t unk6 = SHIM_GET_ARG_32(6); // ptr to 6?
uint32_t unk7 = SHIM_GET_ARG_32(7);
uint32_t color_format_ptr = SHIM_GET_ARG_32(6);
uint32_t color_space_ptr = SHIM_GET_ARG_32(7);
uint32_t frontbuffer = SHIM_MEM_32(frontbuffer_ptr);
XELOGD("VdSwap(%.8X, %.8X, %.8X, %.8X, %.8X, %.8X(%.8X), %.8X, %.8X)", unk0,
unk1, unk2, unk3, unk4, frontbuffer_ptr, frontbuffer, unk6, unk7);
gpu::xenos::xe_gpu_texture_fetch_t fetch;
xe::copy_and_swap_32_unaligned((uint32_t*)&fetch, (uint32_t*)SHIM_MEM_ADDR(fetch_ptr), 6);
auto color_format = (gpu::xenos::ColorFormat)SHIM_MEM_32(color_format_ptr);
auto color_space = SHIM_MEM_32(color_space_ptr);
assert_true(color_format == gpu::xenos::ColorFormat::k_8_8_8_8);
assert_true(color_space == 0);
assert_true(frontbuffer == fetch.address << 12);
assert_true(last_frontbuffer_width_ == 1 + fetch.size_2d.width);
assert_true(last_frontbuffer_height_ == 1 + fetch.size_2d.height);
XELOGD("VdSwap(%.8X, %.8X, %.8X, %.8X, %.8X, %.8X(%.8X), %.8X(%u), %.8X(%u))", buffer_ptr,
fetch_ptr, unk2, unk3, unk4, frontbuffer_ptr, frontbuffer, color_format_ptr, color_format, color_space_ptr, color_space);
// The caller seems to reserve 64 words (256b) in the primary ringbuffer
// for this method to do what it needs. We just zero them out and send a
// token value. It'd be nice to figure out what this is really doing so
// that we could simulate it, though due to TCR I bet all games need to
// use this method.
std::memset(SHIM_MEM_ADDR(unk0), 0, 64 * 4);
auto dwords = reinterpret_cast<uint32_t*>(SHIM_MEM_ADDR(unk0));
std::memset(SHIM_MEM_ADDR(buffer_ptr), 0, 64 * 4);
auto dwords = reinterpret_cast<uint32_t*>(SHIM_MEM_ADDR(buffer_ptr));
dwords[0] = xe::byte_swap((0x3 << 30) | ((63 - 1) << 16) |
(xe::gpu::xenos::PM4_XE_SWAP << 8));
dwords[1] = xe::byte_swap('SWAP');
@ -440,8 +451,6 @@ SHIM_CALL VdSwap_shim(PPCContext* ppc_state, KernelState* state) {
// Set by VdCallGraphicsNotificationRoutines.
dwords[3] = xe::byte_swap(last_frontbuffer_width_);
dwords[4] = xe::byte_swap(last_frontbuffer_height_);
SHIM_SET_RETURN_64(0);
}
} // namespace kernel