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| author | Matt Turner <mattst88@gmail.com> | 2015-07-11 22:46:19 -0700 |
|---|---|---|
| committer | Matt Turner <mattst88@gmail.com> | 2015-07-29 09:34:51 -0700 |
| commit | f8a647883a14694f1b758c12187b3f35b9d039a7 (patch) | |
| tree | cd11148549da4b67e6a9a3f1b941b3dfaa27295c /src/mesa/math | |
| parent | ecc559218d0a544f8a5f878c500f125c2d588d82 (diff) | |
| download | external_mesa3d-f8a647883a14694f1b758c12187b3f35b9d039a7.zip external_mesa3d-f8a647883a14694f1b758c12187b3f35b9d039a7.tar.gz external_mesa3d-f8a647883a14694f1b758c12187b3f35b9d039a7.tar.bz2 | |
mesa: Use floats for viewport bounds.
ARB_viewport_array specifies that DEPTH_RANGE consists of double-
precision parameters (corresponding commit d4dc35987), and a preparatory
commit (6340e609a) added _mesa_get_viewport_xform() which returned
double-precision scale[3] and translate[3] vectors, even though X, Y,
Width, and Height were still floats.
All users of _mesa_get_viewport_xform() immediately convert the double
scale and translation vectors into floats (which were floats originally,
but were converted to doubles in _mesa_get_viewport_xform(), sigh).
i965 at least cannot consume doubles (see SF_CLIP_VIEWPORT). If we want
to pass doubles to hardware, we should have a different function that
does that.
Acked-by: Mathias Froehlich <Mathias.Froehlich@web.de>
Diffstat (limited to 'src/mesa/math')
| -rw-r--r-- | src/mesa/math/m_matrix.c | 4 | ||||
| -rw-r--r-- | src/mesa/math/m_matrix.h | 4 |
2 files changed, 4 insertions, 4 deletions
diff --git a/src/mesa/math/m_matrix.c b/src/mesa/math/m_matrix.c index ecf564c..6a42c6c 100644 --- a/src/mesa/math/m_matrix.c +++ b/src/mesa/math/m_matrix.c @@ -1111,8 +1111,8 @@ _math_matrix_translate( GLmatrix *mat, GLfloat x, GLfloat y, GLfloat z ) * Transforms Normalized Device Coords to window/Z values. */ void -_math_matrix_viewport(GLmatrix *m, const double scale[3], - const double translate[3], double depthMax) +_math_matrix_viewport(GLmatrix *m, const float scale[3], + const float translate[3], double depthMax) { m->m[MAT_SX] = scale[0]; m->m[MAT_TX] = translate[0]; diff --git a/src/mesa/math/m_matrix.h b/src/mesa/math/m_matrix.h index 778d716..c34d9e3 100644 --- a/src/mesa/math/m_matrix.h +++ b/src/mesa/math/m_matrix.h @@ -122,8 +122,8 @@ _math_matrix_frustum( GLmatrix *mat, GLfloat nearval, GLfloat farval ); extern void -_math_matrix_viewport( GLmatrix *m, const double scale[3], - const double translate[3], double depthMax ); +_math_matrix_viewport( GLmatrix *m, const float scale[3], + const float translate[3], double depthMax ); extern void _math_matrix_set_identity( GLmatrix *dest ); |