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remove do_issue_blending

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This commit is contained in:
David Rose 2008-05-05 04:29:35 +00:00
parent c72cf3f452
commit 916b400101
2 changed files with 0 additions and 129 deletions
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128
panda/src/tinydisplay/tinyGraphicsStateGuardian.cxx
View File

@ -1817,134 +1817,6 @@ do_issue_texture() {
*/
}
////////////////////////////////////////////////////////////////////
// Function: TinyGraphicsStateGuardian::do_issue_blending
// Access: Protected
// Description:
////////////////////////////////////////////////////////////////////
void TinyGraphicsStateGuardian::
do_issue_blending() {
/*
// Handle the color_write attrib. If color_write is off, then
// all the other blending-related stuff doesn't matter. If the
// device doesn't support color-write, we use blending tricks
// to effectively disable color write.
unsigned int color_channels =
_target._color_write->get_channels() & _color_write_mask;
if (color_channels == ColorWriteAttrib::C_off) {
if (_target._color_write != _state._color_write) {
enable_multisample_alpha_one(false);
enable_multisample_alpha_mask(false);
if (CLP(color_mask)) {
enable_blend(false);
glColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE);
} else {
enable_blend(true);
_glBlendEquation(GL_FUNC_ADD);
glBlendFunc(GL_ZERO, GL_ONE);
}
}
return;
} else {
if (_target._color_write != _state._color_write) {
if (CLP(color_mask)) {
glColorMask((color_channels & ColorWriteAttrib::C_red) != 0,
(color_channels & ColorWriteAttrib::C_green) != 0,
(color_channels & ColorWriteAttrib::C_blue) != 0,
(color_channels & ColorWriteAttrib::C_alpha) != 0);
}
}
}
CPT(ColorBlendAttrib) color_blend = _target._color_blend;
ColorBlendAttrib::Mode color_blend_mode = _target._color_blend->get_mode();
TransparencyAttrib::Mode transparency_mode = _target._transparency->get_mode();
_color_blend_involves_color_scale = color_blend->involves_color_scale();
// Is there a color blend set?
if (color_blend_mode != ColorBlendAttrib::M_none) {
enable_multisample_alpha_one(false);
enable_multisample_alpha_mask(false);
enable_blend(true);
_glBlendEquation(get_blend_equation_type(color_blend_mode));
glBlendFunc(get_blend_func(color_blend->get_operand_a()),
get_blend_func(color_blend->get_operand_b()));
if (_color_blend_involves_color_scale) {
// Apply the current color scale to the blend mode.
_glBlendColor(_current_color_scale[0], _current_color_scale[1],
_current_color_scale[2], _current_color_scale[3]);
} else {
Colorf c = color_blend->get_color();
_glBlendColor(c[0], c[1], c[2], c[3]);
}
return;
}
// No color blend; is there a transparency set?
switch (transparency_mode) {
case TransparencyAttrib::M_none:
case TransparencyAttrib::M_binary:
break;
case TransparencyAttrib::M_alpha:
case TransparencyAttrib::M_dual:
enable_multisample_alpha_one(false);
enable_multisample_alpha_mask(false);
enable_blend(true);
_glBlendEquation(GL_FUNC_ADD);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
return;
case TransparencyAttrib::M_multisample:
// We need to enable *both* of these in M_multisample case.
enable_multisample_alpha_one(true);
enable_multisample_alpha_mask(true);
enable_blend(false);
return;
case TransparencyAttrib::M_multisample_mask:
enable_multisample_alpha_one(false);
enable_multisample_alpha_mask(true);
enable_blend(false);
return;
default:
tinydisplay_cat.error()
<< "invalid transparency mode " << (int)transparency_mode << endl;
break;
}
if (_line_smooth_enabled || _point_smooth_enabled) {
// If we have either of these turned on, we also need to have
// blend mode enabled in order to see it.
enable_multisample_alpha_one(false);
enable_multisample_alpha_mask(false);
enable_blend(true);
_glBlendEquation(GL_FUNC_ADD);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
return;
}
// For best polygon smoothing, we need:
// (1) a frame buffer that supports alpha
// (2) sort polygons front-to-back
// (3) glBlendFunc(GL_SRC_ALPHA_SATURATE, GL_ONE);
//
// Since these modes have other implications for the application, we
// don't attempt to do this by default. If you really want good
// polygon smoothing (and you don't have multisample support), do
// all this yourself.
// Nothing's set, so disable blending.
enable_multisample_alpha_one(false);
enable_multisample_alpha_mask(false);
enable_blend(false);
*/
}
////////////////////////////////////////////////////////////////////
// Function: TinyGraphicsStateGuardian::apply_texture
// Access: Protected

1
panda/src/tinydisplay/tinyGraphicsStateGuardian.h
View File

@ -102,7 +102,6 @@ private:
void do_issue_cull_face();
void do_issue_material();
void do_issue_texture();
void do_issue_blending();
void apply_texture(TextureContext *tc);
bool upload_texture(TinyTextureContext *gtc);