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tests/hlsl: Add a sampler min/max reduction filtering test.

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The Metal runner could in principle support this feature using
MTLSamplerDescriptor.reductionMode, but that requires macOS 26.0/Tahoe,
which is newer than my current setup.
This commit is contained in:
Henri Verbeet
2025-11-21 17:32:23 +01:00
parent 1007ba40b5
commit dc7cdec9a5
Notes: Henri Verbeet 2025-11-26 17:14:34 +01:00 
Approved-by: Henri Verbeet (@hverbeet)
Merge-Request: https://gitlab.winehq.org/wine/vkd3d/-/merge_requests/1846
8 changed files with 156 additions and 14 deletions
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22
tests/shader_runner_gl.c
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@@ -166,6 +166,8 @@ static bool check_gl_extensions(struct gl_runner *runner)
runner->caps.shader_caps[SHADER_CAP_RT_VP_ARRAY_INDEX] = true;
if (check_gl_extension("GL_ARB_tessellation_shader", count))
runner->caps.shader_caps[SHADER_CAP_TESSELLATION_SHADER] = true;
if (check_gl_extension("GL_ARB_texture_filter_minmax", count))
runner->caps.shader_caps[SHADER_CAP_FILTER_MINMAX] = true;
return true;
}
@@ -1108,6 +1110,24 @@ static GLenum get_compare_op_gl(D3D12_COMPARISON_FUNC op)
}
}
static GLenum get_texture_reduction_mode_gl(D3D12_FILTER filter)
{
D3D12_FILTER_REDUCTION_TYPE r = D3D12_DECODE_FILTER_REDUCTION(filter);
switch (r)
{
case D3D12_FILTER_REDUCTION_TYPE_STANDARD:
case D3D12_FILTER_REDUCTION_TYPE_COMPARISON:
return GL_WEIGHTED_AVERAGE_ARB;
case D3D12_FILTER_REDUCTION_TYPE_MINIMUM:
return GL_MIN;
case D3D12_FILTER_REDUCTION_TYPE_MAXIMUM:
return GL_MAX;
default:
fatal_error("Unhandled reduction type %#x.\n", r);
}
}
static GLuint compile_graphics_shader_program(struct gl_runner *runner, ID3D10Blob **vs_blob)
{
ID3D10Blob *fs_blob, *hs_blob = NULL, *ds_blob = NULL, *gs_blob = NULL;
@@ -1301,6 +1321,8 @@ static bool gl_runner_draw(struct shader_runner *r,
glSamplerParameteri(id, GL_TEXTURE_WRAP_R, get_texture_wrap_gl(sampler->w_address));
glSamplerParameteri(id, GL_TEXTURE_MAG_FILTER, get_texture_filter_mag_gl(sampler->filter));
glSamplerParameteri(id, GL_TEXTURE_MIN_FILTER, get_texture_filter_min_gl(sampler->filter));
if (runner->caps.shader_caps[SHADER_CAP_FILTER_MINMAX])
glSamplerParameteri(id, GL_TEXTURE_REDUCTION_MODE_ARB, get_texture_reduction_mode_gl(sampler->filter));
if (sampler->func)
{
glSamplerParameteri(id, GL_TEXTURE_COMPARE_MODE, GL_COMPARE_REF_TO_TEXTURE);