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cogl-material: Set the blend equation even if blend funcs are the same

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Previously it would only try to set the blend equation if the RGB and
alpha blending functions were different. However it's completely valid
to use a non-standard blending function when the functions are the
same. This patch moves the blending equation to outside the if
statement.
This commit is contained in:
Neil Roberts 2010-05-12 18:57:52 +01:00
parent 9ca68bc37a
commit 1eddbe8e1b
1 changed files with 13 additions and 15 deletions
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28
cogl/cogl-material.c
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@ -1710,6 +1710,13 @@ _cogl_material_flush_base_gl_state (CoglMaterial *material,
#endif
#ifndef HAVE_COGL_GLES /* GLES 1 only has glBlendFunc */
if (have_blend_equation_seperate &&
material->blend_equation_rgb != material->blend_equation_alpha)
GE (glBlendEquationSeparate (material->blend_equation_rgb,
material->blend_equation_alpha));
else
GE (glBlendEquation (material->blend_equation_rgb));
if (blend_factor_uses_constant (material->blend_src_factor_rgb) ||
blend_factor_uses_constant (material->blend_src_factor_alpha) ||
blend_factor_uses_constant (material->blend_dst_factor_rgb) ||
@ -1723,23 +1730,14 @@ _cogl_material_flush_base_gl_state (CoglMaterial *material,
(material->blend_src_factor_rgb != material->blend_src_factor_alpha ||
(material->blend_src_factor_rgb !=
material->blend_src_factor_alpha)))
{
if (have_blend_equation_seperate &&
material->blend_equation_rgb != material->blend_equation_alpha)
GE (glBlendEquationSeparate (material->blend_equation_rgb,
material->blend_equation_alpha));
else
GE (glBlendEquation (material->blend_equation_rgb));
GE (glBlendFuncSeparate (material->blend_src_factor_rgb,
material->blend_dst_factor_rgb,
material->blend_src_factor_alpha,
material->blend_dst_factor_alpha));
}
GE (glBlendFuncSeparate (material->blend_src_factor_rgb,
material->blend_dst_factor_rgb,
material->blend_src_factor_alpha,
material->blend_dst_factor_alpha));
else
#endif
GE (glBlendFunc (material->blend_src_factor_rgb,
material->blend_dst_factor_rgb));
GE (glBlendFunc (material->blend_src_factor_rgb,
material->blend_dst_factor_rgb));
}
}