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GPU: Properly implement memory fills.

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Tony Wasserka
2015-01-01 19:58:18 +01:00
parent 745b42d236
commit 0da6a7e234
4 changed files with 76 additions and 31 deletions
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32
src/core/hw/gpu.h
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@ -84,9 +84,35 @@ struct Regs {
struct {
u32 address_start;
u32 address_end; // ?
u32 size;
u32 value; // ?
u32 address_end;
union {
u32 value_32bit;
BitField<0, 16, u32> value_16bit;
// TODO: Verify component order
BitField< 0, 8, u32> value_24bit_r;
BitField< 8, 8, u32> value_24bit_g;
BitField<16, 8, u32> value_24bit_b;
};
union {
u32 control;
// Setting this field to 1 triggers the memory fill.
// This field also acts as a status flag, and gets reset to 0 upon completion.
BitField<0, 1, u32> trigger;
// Set to 1 upon completion.
BitField<0, 1, u32> finished;
// 0: fill with 16- or 32-bit wide values; 1: fill with 24-bit wide values
BitField<8, 1, u32> fill_24bit;
// 0: fill with 16-bit wide values; 1: fill with 32-bit wide values
BitField<9, 1, u32> fill_32bit;
};
inline u32 GetStartAddress() const {
return DecodeAddressRegister(address_start);