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vkd3d-shader: Implement cull distances.

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Signed-off-by: Józef Kucia <jkucia@codeweavers.com>
Signed-off-by: Henri Verbeet <hverbeet@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Józef Kucia 2018-09-05 13:45:28 +02:00 committed by Alexandre Julliard
parent 814cd31522
commit e425b86610
1 changed files with 38 additions and 13 deletions
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51
libs/vkd3d-shader/spirv.c
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@ -2978,6 +2978,7 @@ vkd3d_system_value_builtins[] =
{VKD3D_SIV_IS_FRONT_FACE, {VKD3D_TYPE_BOOL, 1, SpvBuiltInFrontFacing, sv_front_face_fixup}},
{VKD3D_SIV_CLIP_DISTANCE, {VKD3D_TYPE_FLOAT, 1, SpvBuiltInClipDistance, NULL, true}},
{VKD3D_SIV_CULL_DISTANCE, {VKD3D_TYPE_FLOAT, 1, SpvBuiltInCullDistance, NULL, true}},
};
static const struct
{
@ -3257,12 +3258,25 @@ static unsigned int get_shader_output_swizzle(struct vkd3d_dxbc_compiler *compil
return compile_args->output_swizzles[register_idx];
}
static void calculate_clip_or_cull_distance_mask(const struct vkd3d_shader_signature_element *e,
uint32_t *mask)
{
if (e->semantic_index >= sizeof(*mask) * CHAR_BIT / VKD3D_VEC4_SIZE)
{
FIXME("Invalid semantic index %u for clip/cull distance.\n", e->semantic_index);
return;
}
*mask |= (e->mask & VKD3DSP_WRITEMASK_ALL) << (VKD3D_VEC4_SIZE * e->semantic_index);
}
/* Emits arrayed SPIR-V built-in variables. */
static void vkd3d_dxbc_compiler_emit_shader_signature_outputs(struct vkd3d_dxbc_compiler *compiler)
{
const struct vkd3d_shader_signature *output_signature = compiler->output_signature;
struct vkd3d_spirv_builder *builder = &compiler->spirv_builder;
uint32_t clip_distance_mask = 0, clip_distance_id = 0;
uint32_t cull_distance_mask = 0, cull_distance_id = 0;
const struct vkd3d_spirv_builtin *builtin;
unsigned int i, count;
@ -3273,13 +3287,11 @@ static void vkd3d_dxbc_compiler_emit_shader_signature_outputs(struct vkd3d_dxbc_
switch (e->sysval_semantic)
{
case VKD3D_SV_CLIP_DISTANCE:
if (e->semantic_index >= sizeof(clip_distance_mask) * CHAR_BIT / VKD3D_VEC4_SIZE)
{
ERR("Invalid semantic index %u for clip distance.\n", e->semantic_index);
break;
}
calculate_clip_or_cull_distance_mask(e, &clip_distance_mask);
break;
clip_distance_mask |= (e->mask & VKD3DSP_WRITEMASK_ALL) << (VKD3D_VEC4_SIZE * e->semantic_index);
case VKD3D_SV_CULL_DISTANCE:
calculate_clip_or_cull_distance_mask(e, &cull_distance_mask);
break;
default:
@ -3287,14 +3299,23 @@ static void vkd3d_dxbc_compiler_emit_shader_signature_outputs(struct vkd3d_dxbc_
}
}
if (!clip_distance_mask)
return;
if (clip_distance_mask)
{
count = vkd3d_popcount(clip_distance_mask);
builtin = get_spirv_builtin_for_sysval(VKD3D_SIV_CLIP_DISTANCE);
clip_distance_id = vkd3d_dxbc_compiler_emit_array_variable(compiler, &builder->global_stream,
SpvStorageClassOutput, builtin->component_type, builtin->component_count, count);
vkd3d_spirv_add_iface_variable(builder, clip_distance_id);
}
count = vkd3d_popcount(clip_distance_mask);
builtin = get_spirv_builtin_for_sysval(VKD3D_SIV_CLIP_DISTANCE);
clip_distance_id = vkd3d_dxbc_compiler_emit_array_variable(compiler, &builder->global_stream,
SpvStorageClassOutput, builtin->component_type, builtin->component_count, count);
vkd3d_spirv_add_iface_variable(builder, clip_distance_id);
if (cull_distance_mask)
{
count = vkd3d_popcount(cull_distance_mask);
builtin = get_spirv_builtin_for_sysval(VKD3D_SIV_CULL_DISTANCE);
cull_distance_id = vkd3d_dxbc_compiler_emit_array_variable(compiler, &builder->global_stream,
SpvStorageClassOutput, builtin->component_type, builtin->component_count, count);
vkd3d_spirv_add_iface_variable(builder, cull_distance_id);
}
for (i = 0; i < output_signature->element_count; ++i)
{
@ -3306,6 +3327,10 @@ static void vkd3d_dxbc_compiler_emit_shader_signature_outputs(struct vkd3d_dxbc_
compiler->output_info[i].id = clip_distance_id;
break;
case VKD3D_SV_CULL_DISTANCE:
compiler->output_info[i].id = cull_distance_id;
break;
default:
break;
}