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Pica: Implement stencil testing.

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This commit is contained in:
Tony Wasserka
2015-05-21 16:51:31 +02:00
parent 302e9a20f3
commit 5e79706db2
3 changed files with 199 additions and 13 deletions
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43
src/video_core/pica.h
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@ -420,6 +420,11 @@ struct Regs {
GreaterThanOrEqual = 7,
};
enum class StencilAction : u32 {
Keep = 0,
Xor = 5,
};
struct {
union {
// If false, logic blending is used
@ -454,15 +459,35 @@ struct Regs {
BitField< 8, 8, u32> ref;
} alpha_test;
union {
BitField< 0, 1, u32> stencil_test_enable;
BitField< 4, 3, CompareFunc> stencil_test_func;
BitField< 8, 8, u32> stencil_replacement_value;
BitField<16, 8, u32> stencil_reference_value;
BitField<24, 8, u32> stencil_mask;
} stencil_test;
struct {
union {
// If true, enable stencil testing
BitField< 0, 1, u32> enable;
INSERT_PADDING_WORDS(0x1);
// Comparison operation for stencil testing
BitField< 4, 3, CompareFunc> func;
// Value to calculate the new stencil value from
BitField< 8, 8, u32> replacement_value;
// 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;
};
union {
// Action to perform when the stencil test fails
BitField< 0, 3, StencilAction> action_stencil_fail;
// Action to perform when stencil testing passed but depth testing fails
BitField< 4, 3, StencilAction> action_depth_fail;
// Action to perform when both stencil and depth testing pass
BitField< 8, 3, StencilAction> action_depth_pass;
};
} stencil_test;
union {
BitField< 0, 1, u32> depth_test_enable;
@ -512,7 +537,7 @@ struct Regs {
struct {
INSERT_PADDING_WORDS(0x6);
DepthFormat depth_format;
DepthFormat depth_format; // TODO: Should be a BitField!
BitField<16, 3, ColorFormat> color_format;
INSERT_PADDING_WORDS(0x4);