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Import glDrawBuffers() from WEBGL_draw_buffers extension (#2667)

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This commit is contained in:
Christophe Dehais
2022-04-01 03:27:24 +02:00
committed by GitHub
parent 3ec6d59b47
commit f44818b548
2 changed files with 20 additions and 14 deletions
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25
src/renderer_gl.cpp
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@@ -6799,22 +6799,19 @@ namespace bgfx { namespace gl
m_num = uint8_t(colorIdx);
if (BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGL) || s_renderGL->m_gles3 )
if (0 == colorIdx && BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGL) )
{
if (0 == colorIdx)
{
if (BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGL) )
{
// When only depth is attached disable draw buffer to avoid
// GL_FRAMEBUFFER_INCOMPLETE_DRAW_BUFFER.
GL_CHECK(glDrawBuffer(GL_NONE) );
}
}
else
{
GL_CHECK(glDrawBuffers(colorIdx, buffers) );
}
// When only depth is attached disable draw buffer to avoid
// GL_FRAMEBUFFER_INCOMPLETE_DRAW_BUFFER.
GL_CHECK(glDrawBuffer(GL_NONE) );
}
else if (g_caps.limits.maxFBAttachments > 0)
{
GL_CHECK(glDrawBuffers(colorIdx, buffers) );
}
if (BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGL) || s_renderGL->m_gles3)
{
// Disable read buffer to avoid GL_FRAMEBUFFER_INCOMPLETE_READ_BUFFER.
GL_CHECK(glReadBuffer(GL_NONE) );
}