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Added alpha to coverage and anti-aliased lines support.

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This commit is contained in:
Branimir Karadžić
2016-03-16 15:09:15 -07:00
parent 9853b5b8f6
commit 8955ebc6c8
11 changed files with 147 additions and 71 deletions
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38
src/renderer_gl.cpp
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@@ -1744,6 +1744,11 @@ namespace bgfx { namespace gl
: 0
;
g_caps.supported |= s_extension[Extension::ARB_multisample].m_supported
? BGFX_CAPS_ALPHA_TO_COVERAGE
: 0
;
const bool drawIndirectSupported = false
|| s_extension[Extension::AMD_multi_draw_indirect].m_supported
|| s_extension[Extension::ARB_draw_indirect ].m_supported
@@ -5931,6 +5936,18 @@ namespace bgfx { namespace gl
GL_CHECK(glDisable(GL_MULTISAMPLE) );
}
}
if (BGFX_STATE_LINEAA & changedFlags)
{
if (BGFX_STATE_LINEAA & newFlags)
{
GL_CHECK(glEnable(GL_LINE_SMOOTH) );
}
else
{
GL_CHECK(glDisable(GL_LINE_SMOOTH) );
}
}
#endif // BGFX_CONFIG_RENDERER_OPENGL
if ( (BGFX_STATE_ALPHA_WRITE|BGFX_STATE_RGB_WRITE) & changedFlags)
@@ -5940,10 +5957,27 @@ namespace bgfx { namespace gl
GL_CHECK(glColorMask(rgb, rgb, rgb, alpha) );
}
if ( (BGFX_STATE_BLEND_MASK|BGFX_STATE_BLEND_EQUATION_MASK|BGFX_STATE_BLEND_INDEPENDENT) & changedFlags
if ( ( (0
| BGFX_STATE_BLEND_MASK
| BGFX_STATE_BLEND_EQUATION_MASK
| BGFX_STATE_BLEND_INDEPENDENT
| BGFX_STATE_BLEND_ALPHA_TO_COVERAGE
) & changedFlags)
|| blendFactor != draw.m_rgba)
{
if ( (BGFX_STATE_BLEND_MASK|BGFX_STATE_BLEND_EQUATION_MASK|BGFX_STATE_BLEND_INDEPENDENT) & newFlags
if (BGFX_STATE_BLEND_ALPHA_TO_COVERAGE & newFlags)
{
GL_CHECK(glEnable(GL_SAMPLE_ALPHA_TO_COVERAGE) );
}
else
{
GL_CHECK(glDisable(GL_SAMPLE_ALPHA_TO_COVERAGE) );
}
if ( ( (0
| BGFX_STATE_BLEND_MASK
| BGFX_STATE_BLEND_EQUATION_MASK
| BGFX_STATE_BLEND_INDEPENDENT) & newFlags)
|| blendFactor != draw.m_rgba)
{
const bool enabled = !!(BGFX_STATE_BLEND_MASK & newFlags);