VectorImageRenderInfo Register(VectorImage vi, VisualElement context)
{
s_MarkerRegister.Begin();
VectorImageRenderInfo renderInfo = m_RenderInfoPool.Get();
renderInfo.useCount = 1;
m_Registered[vi] = renderInfo;
if (vi.settings?.Length > 0)
{
// We first attempt to allocate into the gradient settings atlas since it supports deallocation.
int gradientCount = vi.settings.Length;
Alloc alloc = m_GradientSettingsAtlas.Add(gradientCount);
if (alloc.size > 0)
{
// Then attempt to allocate in the texture atlas.
// TODO: Once the atlas actually processes returns, we should call it at some point.
if (m_Atlas.TryGetAtlas(context, vi.atlas, out TextureId atlasId, out RectInt uvs))
{
// Remap.
GradientRemap previous = null;
for (int i = 0; i < gradientCount; ++i)
{
// Chain.
GradientRemap current = m_GradientRemapPool.Get();
if (i > 0)
{
previous.next = current;
}
else
{
renderInfo.firstGradientRemap = current;
}
previous = current;
// Remap the index.
current.origIndex = i;
current.destIndex = (int)alloc.start + i;
// Remap the rect.
GradientSettings gradient = vi.settings[i];
RectInt location = gradient.location;
location.x += uvs.x;
location.y += uvs.y;
current.location = location;
current.atlas = atlasId;
}
// Write into the previously allocated gradient settings now that we are sure to use it.
m_GradientSettingsAtlas.Write(alloc, vi.settings, renderInfo.firstGradientRemap);
}
else
{
// If the texture atlas didn't fit, keep it as a standalone custom texture, only need to remap the setting indices
GradientRemap previous = null;
for (int i = 0; i < gradientCount; ++i)
{
GradientRemap current = m_GradientRemapPool.Get();
if (i > 0)
{
previous.next = current;
}
else
{
renderInfo.firstGradientRemap = current;
}
previous = current;
current.origIndex = i;
current.destIndex = (int)alloc.start + i;
current.atlas = TextureId.invalid;
}
m_GradientSettingsAtlas.Write(alloc, vi.settings, null);
}
}
else
{
if (!m_LoggedExhaustedSettingsAtlas)
{
Debug.LogError("Exhausted max gradient settings (" + m_GradientSettingsAtlas.length + ") for atlas: " + m_GradientSettingsAtlas.atlas?.name);
m_LoggedExhaustedSettingsAtlas = true;
}
}
}
VectorImageRenderInfo Register(VectorImage vi)
{
k_RegisterSampler.Begin();
VectorImageRenderInfo renderInfo = m_RenderInfoPool.Get();
renderInfo.useCount = 1;
m_Registered[vi] = renderInfo;
if (vi.settings?.Length > 0)
{
// We first attempt to allocate into the gradient settings atlas since it supports deallocation.
int gradientCount = vi.settings.Length;
Alloc alloc = m_GradientSettingsAtlas.Add(gradientCount);
if (alloc.size > 0)
{
// Then attempt to allocate in the texture atlas.
RectInt uvs;
if (m_AtlasManager.TryGetLocation(vi.atlas, out uvs))
{
// Remap.
GradientRemap previous = null;
for (int i = 0; i < gradientCount; ++i)
{
// Chain.
GradientRemap current = m_GradientRemapPool.Get();
if (i > 0)
{
previous.next = current;
}
else
{
renderInfo.firstGradientRemap = current;
}
previous = current;
// Remap the index.
current.origIndex = i;
current.destIndex = (int)alloc.start + i;
// Remap the rect.
GradientSettings gradient = vi.settings[i];
RectInt location = gradient.location;
location.x += uvs.x;
location.y += uvs.y;
current.location = location;
current.isAtlassed = true;
}
// Write into the previously allocated gradient settings now that we are sure to use it.
m_GradientSettingsAtlas.Write(alloc, vi.settings, renderInfo.firstGradientRemap);
}
else
{
// If the texture atlas didn't fit, keep it as a standalone custom texture, only need to remap the setting indices
GradientRemap previous = null;
for (int i = 0; i < gradientCount; ++i)
{
GradientRemap current = m_GradientRemapPool.Get();
if (i > 0)
{
previous.next = current;
}
else
{
renderInfo.firstGradientRemap = current;
}
previous = current;
current.origIndex = i;
current.destIndex = (int)alloc.start + i;
current.isAtlassed = false;
}
m_GradientSettingsAtlas.Write(alloc, vi.settings, null);
}
}
else
{
if (!m_LoggedExhaustedSettingsAtlas)
{
Debug.LogError("Exhausted max gradient settings (" + m_GradientSettingsAtlas.length + ") for atlas: " + m_GradientSettingsAtlas.atlas?.name);
m_LoggedExhaustedSettingsAtlas = true;
}
}
}
k_RegisterSampler.End();
return(renderInfo);
}
