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If both view and primitive scissors are set set their intersection as scissor region.

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This commit is contained in:
bkaradzic 2013-08-01 22:55:26 -07:00
parent a09f804ac3
commit fe0bbeb0e6
4 changed files with 51 additions and 25 deletions
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12
src/bgfx_p.h
View file

@ -182,6 +182,18 @@ namespace bgfx
return UINT64_C(0) == ui64;
}
void intersect(const Rect& _a, const Rect& _b)
{
const uint16_t sx = uint16_max(_a.m_x, _b.m_x);
const uint16_t sy = uint16_max(_a.m_y, _b.m_y);
const uint16_t ex = uint16_min(_a.m_x + _a.m_width, _b.m_x + _b.m_width );
const uint16_t ey = uint16_min(_a.m_y + _a.m_height, _b.m_y + _b.m_height);
m_x = sx;
m_y = sy;
m_width = ex - sx;
m_height = ey - sy;
}
uint16_t m_x;
uint16_t m_y;
uint16_t m_width;

23
src/renderer_d3d11.cpp
View file

@ -2325,6 +2325,8 @@ namespace bgfx
D3D11_PRIMITIVE_TOPOLOGY primType = D3D11_PRIMITIVE_TOPOLOGY_TRIANGLELIST;
deviceCtx->IASetPrimitiveTopology(primType);
uint32_t primNumVerts = 3;
bool viewHasScissor = false;
Rect viewScissorRect;
uint32_t statsNumPrimsSubmitted = 0;
uint32_t statsNumIndices = 0;
@ -2367,7 +2369,10 @@ namespace bgfx
s_renderCtx.setRenderTarget(rt);
}
Rect& rect = m_render->m_rect[view];
const Rect& rect = m_render->m_rect[view];
const Rect& scissorRect = m_render->m_scissor[view];
viewHasScissor = !scissorRect.isZero();
viewScissorRect = viewHasScissor ? scissorRect : rect;
D3D11_VIEWPORT vp;
vp.TopLeftX = rect.m_x;
@ -2403,21 +2408,21 @@ namespace bgfx
if (UINT16_MAX == scissor)
{
const Rect& scissorRect = m_render->m_scissor[view];
scissorEnabled = !scissorRect.isZero();
if (scissorEnabled)
scissorEnabled = viewHasScissor;
if (viewHasScissor)
{
D3D11_RECT rc;
rc.left = scissorRect.m_x;
rc.top = scissorRect.m_y;
rc.right = scissorRect.m_x + scissorRect.m_width;
rc.bottom = scissorRect.m_y + scissorRect.m_height;
rc.left = viewScissorRect.m_x;
rc.top = viewScissorRect.m_y;
rc.right = viewScissorRect.m_x + viewScissorRect.m_width;
rc.bottom = viewScissorRect.m_y + viewScissorRect.m_height;
deviceCtx->RSSetScissorRects(1, &rc);
}
}
else
{
const Rect& scissorRect = m_render->m_rectCache.m_cache[scissor];
Rect scissorRect;
scissorRect.intersect(viewScissorRect, m_render->m_rectCache.m_cache[scissor]);
scissorEnabled = true;
D3D11_RECT rc;
rc.left = scissorRect.m_x;

25
src/renderer_d3d9.cpp
View file

@ -2261,6 +2261,8 @@ namespace bgfx
uint32_t blendFactor = 0;
D3DPRIMITIVETYPE primType = D3DPT_TRIANGLELIST;
uint32_t primNumVerts = 3;
bool viewHasScissor = false;
Rect viewScissorRect;
uint32_t statsNumPrimsSubmitted = 0;
uint32_t statsNumIndices = 0;
@ -2305,7 +2307,11 @@ namespace bgfx
s_renderCtx.setRenderTarget(rt);
}
Rect& rect = m_render->m_rect[view];
const Rect& rect = m_render->m_rect[view];
const Rect& scissorRect = m_render->m_scissor[view];
viewHasScissor = !scissorRect.isZero();
viewScissorRect = viewHasScissor ? scissorRect : rect;
D3DVIEWPORT9 vp;
vp.X = rect.m_x;
vp.Y = rect.m_y;
@ -2370,23 +2376,22 @@ namespace bgfx
if (UINT16_MAX == scissor)
{
const Rect& scissorRect = m_render->m_scissor[view];
bool scissorEnabled = !scissorRect.isZero();
DX_CHECK(device->SetRenderState(D3DRS_SCISSORTESTENABLE, scissorEnabled) );
if (scissorEnabled)
DX_CHECK(device->SetRenderState(D3DRS_SCISSORTESTENABLE, viewHasScissor) );
if (viewHasScissor)
{
RECT rc;
rc.left = scissorRect.m_x;
rc.top = scissorRect.m_y;
rc.right = scissorRect.m_x + scissorRect.m_width;
rc.bottom = scissorRect.m_y + scissorRect.m_height;
rc.left = viewScissorRect.m_x;
rc.top = viewScissorRect.m_y;
rc.right = viewScissorRect.m_x + viewScissorRect.m_width;
rc.bottom = viewScissorRect.m_y + viewScissorRect.m_height;
DX_CHECK(device->SetScissorRect(&rc) );
}
}
else
{
Rect scissorRect;
scissorRect.intersect(viewScissorRect, m_render->m_rectCache.m_cache[scissor]);
DX_CHECK(device->SetRenderState(D3DRS_SCISSORTESTENABLE, true) );
const Rect& scissorRect = m_render->m_rectCache.m_cache[scissor];
RECT rc;
rc.left = scissorRect.m_x;
rc.top = scissorRect.m_y;

16
src/renderer_gl.cpp
View file

@ -2819,6 +2819,8 @@ namespace bgfx
uint32_t primNumVerts = 3;
uint32_t baseVertex = 0;
GLuint currentVao = 0;
bool viewHasScissor = false;
Rect viewScissorRect;
uint32_t statsNumPrimsSubmitted = 0;
uint32_t statsNumIndices = 0;
@ -2862,7 +2864,10 @@ namespace bgfx
height = s_renderCtx.setRenderTarget(rt, m_render->m_resolution.m_height);
}
Rect& rect = m_render->m_rect[view];
const Rect& rect = m_render->m_rect[view];
const Rect& scissorRect = m_render->m_scissor[view];
viewHasScissor = !scissorRect.isZero();
viewScissorRect = viewHasScissor ? scissorRect : rect;
GL_CHECK(glViewport(rect.m_x, height-rect.m_height-rect.m_y, rect.m_width, rect.m_height) );
@ -2887,12 +2892,10 @@ namespace bgfx
if (UINT16_MAX == scissor)
{
const Rect& scissorRect = m_render->m_scissor[view];
bool scissor = !scissorRect.isZero();
if (scissor)
if (viewHasScissor)
{
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) );
GL_CHECK(glScissor(viewScissorRect.m_x, height-viewScissorRect.m_height-viewScissorRect.m_y, viewScissorRect.m_width, viewScissorRect.m_height) );
}
else
{
@ -2901,7 +2904,8 @@ namespace bgfx
}
else
{
const Rect& scissorRect = m_render->m_rectCache.m_cache[scissor];
Rect scissorRect;
scissorRect.intersect(viewScissorRect, 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) );
}