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GPU: Add support for stencil buffer texturing mode.

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This adds the possibility to read the stencil buffer inside shaders.
This is only available on GL 4.3 so use it accordingly.
This commit is contained in:
Clément Foucault
2022-03-16 08:36:42 +01:00
parent 054957659f
commit 93bf17d952
7 changed files with 29 additions and 0 deletions
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6
source/blender/gpu/intern/gpu_texture.cc
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@@ -550,6 +550,12 @@ void GPU_texture_swizzle_set(GPUTexture *tex, const char swizzle[4])
reinterpret_cast<Texture *>(tex)->swizzle_set(swizzle);
}
void GPU_texture_stencil_texture_mode_set(GPUTexture *tex, bool use_stencil)
{
BLI_assert(GPU_texture_stencil(tex) || !use_stencil);
reinterpret_cast<Texture *>(tex)->stencil_texture_mode_set(use_stencil);
}
void GPU_texture_free(GPUTexture *tex_)
{
Texture *tex = reinterpret_cast<Texture *>(tex_);

1
source/blender/gpu/intern/gpu_texture_private.hh
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@@ -117,6 +117,7 @@ class Texture {
virtual void copy_to(Texture *tex) = 0;
virtual void clear(eGPUDataFormat format, const void *data) = 0;
virtual void swizzle_set(const char swizzle_mask[4]) = 0;
virtual void stencil_texture_mode_set(bool use_stencil) = 0;
virtual void mip_range_set(int min, int max) = 0;
virtual void *read(int mip, eGPUDataFormat format) = 0;