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Diffstat (limited to '')
-rw-r--r-- | src/video_core/command_processor.cpp | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/src/video_core/command_processor.cpp b/src/video_core/command_processor.cpp new file mode 100644 index 000000000..515c407ea --- /dev/null +++ b/src/video_core/command_processor.cpp @@ -0,0 +1,60 @@ +// Copyright 2014 Citra Emulator Project +// Licensed under GPLv2 +// Refer to the license.txt file included. + +#include "pica.h" +#include "command_processor.h" + + +namespace Pica { + +Regs registers; + +namespace CommandProcessor { + +static inline void WritePicaReg(u32 id, u32 value) { + u32 old_value = registers[id]; + registers[id] = value; + + switch(id) { + // TODO: Perform actions for anything which requires special treatment here... + + default: + break; + } +} + +static std::ptrdiff_t ExecuteCommandBlock(const u32* first_command_word) { + const CommandHeader& header = *(const CommandHeader*)(&first_command_word[1]); + + u32* read_pointer = (u32*)first_command_word; + + // TODO: Take parameter mask into consideration! + + WritePicaReg(header.cmd_id, *read_pointer); + read_pointer += 2; + + for (int i = 1; i < 1+header.extra_data_length; ++i) { + u32 cmd = header.cmd_id + ((header.group_commands) ? i : 0); + WritePicaReg(cmd, *read_pointer); + ++read_pointer; + } + + // align read pointer to 8 bytes + if ((first_command_word - read_pointer) % 2) + ++read_pointer; + + return read_pointer - first_command_word; +} + +void ProcessCommandList(const u32* list, u32 size) { + u32* read_pointer = (u32*)list; + + while (read_pointer < list + size) { + read_pointer += ExecuteCommandBlock(read_pointer); + } +} + +} // namespace + +} // namespace |