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vkd3d-shader/glsl: Implement VKD3DSIH_DP3.

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This commit is contained in:
Henri Verbeet
2024-05-02 01:15:29 +02:00
parent 929010ffd7
commit 93cd63bc93
Notes: Henri Verbeet 2024-09-26 01:25:28 +02:00 
Approved-by: Giovanni Mascellani (@giomasce)
Approved-by: Henri Verbeet (@hverbeet)
Merge-Request: https://gitlab.winehq.org/wine/vkd3d/-/merge_requests/1113
2 changed files with 29 additions and 2 deletions
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27
libs/vkd3d-shader/glsl.c
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@@ -428,6 +428,30 @@ static void shader_glsl_binop(struct vkd3d_glsl_generator *gen,
glsl_dst_cleanup(&dst, &gen->string_buffers);
}
static void shader_glsl_dot(struct vkd3d_glsl_generator *gen,
const struct vkd3d_shader_instruction *ins, uint32_t src_mask)
{
unsigned int component_count;
struct glsl_src src[2];
struct glsl_dst dst;
uint32_t dst_mask;
dst_mask = glsl_dst_init(&dst, gen, ins, &ins->dst[0]);
glsl_src_init(&src[0], gen, &ins->src[0], src_mask);
glsl_src_init(&src[1], gen, &ins->src[1], src_mask);
if ((component_count = vsir_write_mask_component_count(dst_mask)) > 1)
shader_glsl_print_assignment(gen, &dst, "vec%d(dot(%s, %s))",
component_count, src[0].str->buffer, src[1].str->buffer);
else
shader_glsl_print_assignment(gen, &dst, "dot(%s, %s)",
src[0].str->buffer, src[1].str->buffer);
glsl_src_cleanup(&src[1], &gen->string_buffers);
glsl_src_cleanup(&src[0], &gen->string_buffers);
glsl_dst_cleanup(&dst, &gen->string_buffers);
}
static void shader_glsl_intrinsic(struct vkd3d_glsl_generator *gen,
const struct vkd3d_shader_instruction *ins, const char *op)
{
@@ -688,6 +712,9 @@ static void vkd3d_glsl_handle_instruction(struct vkd3d_glsl_generator *gen,
case VKD3DSIH_DIV:
shader_glsl_binop(gen, ins, "/");
break;
case VKD3DSIH_DP3:
shader_glsl_dot(gen, ins, vkd3d_write_mask_from_component_count(3));
break;
case VKD3DSIH_FRC:
shader_glsl_intrinsic(gen, ins, "fract");
break;