diff options
Diffstat (limited to '')
| -rw-r--r-- | src/core/hw/gpu.cpp | 53 |
1 files changed, 47 insertions, 6 deletions
diff --git a/src/core/hw/gpu.cpp b/src/core/hw/gpu.cpp index 49fc574bc..31989f445 100644 --- a/src/core/hw/gpu.cpp +++ b/src/core/hw/gpu.cpp @@ -290,13 +290,54 @@ inline void Write(u32 addr, const T data) { u8* source_pointer = Memory::GetPointer(g_regs.display_transfer.GetPhysicalInputAddress()); u8* dest_pointer = Memory::GetPointer(g_regs.display_transfer.GetPhysicalOutputAddress()); - - // TODO: Perform display transfer correctly! for (int y = 0; y < g_regs.display_transfer.output_height; ++y) { - // TODO: Copy size is just guesswork! - memcpy(dest_pointer + y * g_regs.display_transfer.output_width * 4, - source_pointer + y * g_regs.display_transfer.input_width * 4, - g_regs.display_transfer.output_width * 4); + // TODO: Why does the register seem to hold twice the framebuffer width? + for (int x = 0; x < g_regs.display_transfer.output_width / 2; ++x) { + int source[4] = { 0, 0, 0, 0}; // rgba; + + switch (g_regs.display_transfer.input_format) { + case Registers::FramebufferFormat::RGBA8: + { + // TODO: Most likely got the component order messed up. + u8* srcptr = source_pointer + x * 4 + y * g_regs.display_transfer.input_width * 4 / 2; + source[0] = srcptr[0]; // blue + source[1] = srcptr[1]; // green + source[2] = srcptr[2]; // red + source[3] = srcptr[3]; // alpha + break; + } + + default: + ERROR_LOG(GPU, "Unknown source framebuffer format %x", (int)g_regs.display_transfer.input_format.Value()); + break; + } + + switch (g_regs.display_transfer.output_format) { + /*case Registers::FramebufferFormat::RGBA8: + { + // TODO: Untested + u8* dstptr = (u32*)(dest_pointer + x * 4 + y * g_regs.display_transfer.output_width * 4); + dstptr[0] = source[0]; + dstptr[1] = source[1]; + dstptr[2] = source[2]; + dstptr[3] = source[3]; + break; + }*/ + + case Registers::FramebufferFormat::RGB8: + { + u8* dstptr = dest_pointer + x * 3 + y * g_regs.display_transfer.output_width * 3 / 2; + dstptr[0] = source[0]; // blue + dstptr[1] = source[1]; // green + dstptr[2] = source[2]; // red + break; + } + + default: + ERROR_LOG(GPU, "Unknown destination framebuffer format %x", static_cast<int>(g_regs.display_transfer.output_format.Value())); + break; + } + } } DEBUG_LOG(GPU, "DisplayTriggerTransfer: %x bytes from %x(%xx%x)-> %x(%xx%x), dst format %x", |