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Move Zfreeze code out individual backends into videoCommon

Browse source 
Also:
 * Implement support for per-vertex PosMatrixIndex
 * Only update zslope constant once when zfreeze is activated.
 * Added a bunch of comments.
This commit is contained in:
Scott Mansell 2015-01-24 03:15:09 +13:00
commit 5510c86b81
10 changed files with 59 additions and 40 deletions
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4
Source/Core/VideoCommon/VertexShaderManager.h
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@ -34,11 +34,11 @@ public:
static void RotateView(float x, float y);
static void ResetView();
// data: 3 floats representing the X, Y and Z vertex model coordinates
// data: 3 floats representing the X, Y and Z vertex model coordinates and the posmatrix index.
// out: 4 floats which will be initialized with the corresponding clip space coordinates
// NOTE: g_fProjectionMatrix must be up to date when this is called
// (i.e. VertexShaderManager::SetConstants needs to be called before using this!)
static void TransformToClipSpace(const float* data, float *out);
static void TransformToClipSpace(const float* data, float *out, u32 mtxIdx);
static VertexShaderConstants constants;
static bool dirty;