diff options
| author | Tony Wasserka <NeoBrainX@gmail.com> | 2014-12-13 21:39:42 +0100 |
|---|---|---|
| committer | Tony Wasserka <NeoBrainX@gmail.com> | 2014-12-31 16:32:55 +0100 |
| commit | 0f494240228e24e21c88bf9f3178aaa68db4fb45 (patch) | |
| tree | b23513ade2000339485bf9585a988aece11c1019 /src/video_core/pica.h | |
| parent | 3b78af904e5a4f959ab206a207bd26441886c9a8 (diff) | |
Pica/Rasterizer: Implement backface culling.
Diffstat (limited to 'src/video_core/pica.h')
| -rw-r--r-- | src/video_core/pica.h | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/src/video_core/pica.h b/src/video_core/pica.h index 810a926c9..f5771ed84 100644 --- a/src/video_core/pica.h +++ b/src/video_core/pica.h @@ -50,7 +50,19 @@ struct Regs { u32 trigger_irq; - INSERT_PADDING_WORDS(0x30); + INSERT_PADDING_WORDS(0x2f); + + enum class CullMode : u32 { + // Select which polygons are considered to be "frontfacing". + KeepAll = 0, + KeepClockWise = 1, + KeepCounterClockWise = 2, + // TODO: What does the third value imply? + }; + + union { + BitField<0, 2, CullMode> cull_mode; + }; BitField<0, 24, u32> viewport_size_x; @@ -659,6 +671,7 @@ struct Regs { } while(false) ADD_FIELD(trigger_irq); + ADD_FIELD(cull_mode); ADD_FIELD(viewport_size_x); ADD_FIELD(viewport_size_y); ADD_FIELD(viewport_depth_range); @@ -730,6 +743,7 @@ private: #define ASSERT_REG_POSITION(field_name, position) static_assert(offsetof(Regs, field_name) == position * 4, "Field "#field_name" has invalid position") ASSERT_REG_POSITION(trigger_irq, 0x10); +ASSERT_REG_POSITION(cull_mode, 0x40); ASSERT_REG_POSITION(viewport_size_x, 0x41); ASSERT_REG_POSITION(viewport_size_y, 0x43); ASSERT_REG_POSITION(viewport_depth_range, 0x4d); |