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Reworking IRenderTarget interface to avoid constant memory allocations.

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setTexture functions for single textures (more or less the usual case) IRenderTarget no longer need memory allocations 
on each call.
Also calling IRenderTarget::setTexture with a nullpointer no longer sets a rendertarget with an array which contains a single nullpointer but clears the array instead.


git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/trunk@6243 dfc29bdd-3216-0410-991c-e03cc46cb475
This commit is contained in:
cutealien
2021-08-26 16:45:20 +00:00
parent 075c64bebb
commit d03881b83a
8 changed files with 51 additions and 33 deletions
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10
source/Irrlicht/CD3D9RenderTarget.cpp
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@@ -49,17 +49,17 @@ namespace irr
DepthStencil->drop();
}
void CD3D9RenderTarget::setTexture(const core::array<ITexture*>& textures, ITexture* depthStencil, const core::array<E_CUBE_SURFACE>& cubeSurfaces)
void CD3D9RenderTarget::setTextures(ITexture* const * textures, u32 numTextures, ITexture* depthStencil, const E_CUBE_SURFACE* cubeSurfaces, u32 numCubeSurfaces)
{
bool needSizeUpdate = false;
// Set color attachments.
if ((Textures != textures) || (CubeSurfaces != cubeSurfaces))
if (!Textures.equals(textures, numTextures) || !CubeSurfaces.equals(cubeSurfaces, numCubeSurfaces))
{
needSizeUpdate = true;
CubeSurfaces = cubeSurfaces; // TODO: we can probably avoid some memory allocating/de-allocating if _only_ CubeSurfaces change.
CubeSurfaces.set_data(cubeSurfaces, numCubeSurfaces); // TODO: we can probably avoid some memory allocating/de-allocating if _only_ CubeSurfaces change.
if (textures.size() > Driver->ActiveRenderTarget.size())
if (numTextures > Driver->ActiveRenderTarget.size())
{
core::stringc message = "This GPU supports up to ";
message += Driver->ActiveRenderTarget.size();
@@ -68,7 +68,7 @@ namespace irr
os::Printer::log(message.c_str(), ELL_WARNING);
}
const u32 size = core::min_(textures.size(), static_cast<u32>(Driver->ActiveRenderTarget.size()));
const u32 size = core::min_(numTextures, static_cast<u32>(Driver->ActiveRenderTarget.size()));
for (u32 i = 0; i < Surfaces.size(); ++i)
{