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GPU/Rasterizer: Corrected the stencil implementation.

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Verified the behavior with hardware tests.
This commit is contained in:
Subv 2015-08-20 10:10:35 -05:00
parent ef7eb8bc4c
commit 186873420f
2 changed files with 39 additions and 18 deletions
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20
src/video_core/pica.h
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@ -441,8 +441,12 @@ struct Regs {
};
enum class StencilAction : u32 {
Keep = 0,
Xor = 5,
Keep = 0,
Replace = 2,
Increment = 3,
Decrement = 4,
Invert = 5
};
struct {
@ -481,23 +485,29 @@ struct Regs {
struct {
union {
// Raw value of this register
u32 raw_func;
// If true, enable stencil testing
BitField< 0, 1, u32> enable;
// Comparison operation for stencil testing
BitField< 4, 3, CompareFunc> func;
// Value to calculate the new stencil value from
BitField< 8, 8, u32> replacement_value;
// Mask used to control writing to the stencil buffer
BitField< 8, 8, u32> write_mask;
// Value to compare against for stencil testing
BitField<16, 8, u32> reference_value;
// Mask to apply on stencil test inputs
BitField<24, 8, u32> mask;
BitField<24, 8, u32> input_mask;
};
union {
// Raw value of this register
u32 raw_op;
// Action to perform when the stencil test fails
BitField< 0, 3, StencilAction> action_stencil_fail;