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Added support for per primitive scissor.

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bkaradzic
2013-07-27 15:27:54 -07:00
parent a1e226cb5b
commit bac2073b76
7 changed files with 151 additions and 48 deletions
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41
src/renderer_gl.cpp
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@@ -2836,9 +2836,11 @@ namespace bgfx
if (key.m_view != view)
{
currentState.clear();
currentState.m_scissor = !state.m_scissor;
changedFlags = BGFX_STATE_MASK;
changedStencil = packStencil(BGFX_STENCIL_MASK, BGFX_STENCIL_MASK);
currentState.m_flags = newFlags;
currentState.m_stencil = newStencil;
GREMEDY_SETMARKER(s_viewName[key.m_view]);
@@ -2862,18 +2864,6 @@ namespace bgfx
m_clearQuad.clear(rect, clear, height);
}
Rect& scissorRect = m_render->m_scissor[view];
bool scissor = !scissorRect.isZero();
if (scissor)
{
GL_CHECK(glEnable(GL_SCISSOR_TEST) );
GL_CHECK(glScissor(scissorRect.m_x, height-scissorRect.m_height-scissorRect.m_y, scissorRect.m_width, scissorRect.m_height) );
}
else
{
GL_CHECK(glDisable(GL_SCISSOR_TEST) );
}
GL_CHECK(glDisable(GL_STENCIL_TEST) );
GL_CHECK(glEnable(GL_DEPTH_TEST) );
GL_CHECK(glDepthFunc(GL_LESS) );
@@ -2881,6 +2871,33 @@ namespace bgfx
GL_CHECK(glDisable(GL_BLEND) );
}
uint16_t scissor = state.m_scissor;
if (currentState.m_scissor != scissor)
{
currentState.m_scissor = scissor;
if (UINT16_MAX == scissor)
{
const Rect& scissorRect = m_render->m_scissor[view];
bool scissor = !scissorRect.isZero();
if (scissor)
{
GL_CHECK(glEnable(GL_SCISSOR_TEST) );
GL_CHECK(glScissor(scissorRect.m_x, height-scissorRect.m_height-scissorRect.m_y, scissorRect.m_width, scissorRect.m_height) );
}
else
{
GL_CHECK(glDisable(GL_SCISSOR_TEST) );
}
}
else
{
const Rect& scissorRect = m_render->m_rectCache.m_cache[scissor];
GL_CHECK(glEnable(GL_SCISSOR_TEST) );
GL_CHECK(glScissor(scissorRect.m_x, height-scissorRect.m_height-scissorRect.m_y, scissorRect.m_width, scissorRect.m_height) );
}
}
if (0 != changedStencil)
{
if (0 != newStencil)