GPU Matrix API: clean up after 2D-3D unification

See GPU_matrix.h & gpu_matrix.c for the important changes. Other files are mostly just updated to use the latest API.

- remove unused functions, defines, enums, comments
- remove "3D" from function names
- init to Identity transform (otherwise empty stack)
- gpuMatrixReset lets outside code return to initial state

Part of T49450
Follow up to D2626 and 49fc9cff3b90

2 files changed, 3 insertions, 3 deletions

diff --git a/source/blender/editors/transform/transform.c b/source/blender/editors/transform/transform.c
index c479203bbeb..06a052ad711 100644
--- a/source/blender/editors/transform/transform.c
+++ b/source/blender/editors/transform/transform.c
@@ -6858,7 +6858,7 @@ static void drawEdgeSlide(TransInfo *t)
 			glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
 
 			gpuPushMatrix();
-			gpuMultMatrix3D(t->obedit->obmat);
+			gpuMultMatrix(t->obedit->obmat);
 
 			unsigned int pos = VertexFormat_add_attrib(immVertexFormat(), "pos", COMP_F32, 3, KEEP_FLOAT);
 
@@ -7470,7 +7470,7 @@ static void drawVertSlide(TransInfo *t)
 			glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
 
 			gpuPushMatrix();
-			gpuMultMatrix3D(t->obedit->obmat);
+			gpuMultMatrix(t->obedit->obmat);
 
 			glLineWidth(line_size);
 
diff --git a/source/blender/editors/transform/transform_generics.c b/source/blender/editors/transform/transform_generics.c
index d9dc6bf0dfd..0009ae13117 100644
--- a/source/blender/editors/transform/transform_generics.c
+++ b/source/blender/editors/transform/transform_generics.c
@@ -1036,7 +1036,7 @@ void drawLine(TransInfo *t, const float center[3], const float dir[3], char axis
 		
 		gpuPushMatrix();
 
-		// if (t->obedit) gpuLoadMatrix3D(t->obedit->obmat); // sets opengl viewing
+		// if (t->obedit) gpuLoadMatrix(t->obedit->obmat); // sets opengl viewing
 
 		copy_v3_v3(v3, dir);
 		mul_v3_fl(v3, v3d->far);