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vkd3d-shader/msl: Generate the shader entry point.

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This commit is contained in:
Feifan He 2024-09-30 11:37:15 +08:00 committed by Henri Verbeet
parent 577cc47740
commit a88f3168e5
Notes: Henri Verbeet 2024-10-07 17:52:05 +02:00 
Approved-by: Giovanni Mascellani (@giomasce)
Approved-by: Henri Verbeet (@hverbeet)
Merge-Request: https://gitlab.winehq.org/wine/vkd3d/-/merge_requests/1132
1 changed files with 48 additions and 2 deletions
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50
libs/vkd3d-shader/msl.c
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@ -464,6 +464,45 @@ static void msl_generate_output_struct_declarations(struct msl_generator *gen)
vkd3d_string_buffer_printf(buffer, "};\n\n");
}
static void msl_generate_entrypoint(struct msl_generator *gen)
{
enum vkd3d_shader_type type = gen->program->shader_version.type;
switch (type)
{
case VKD3D_SHADER_TYPE_VERTEX:
vkd3d_string_buffer_printf(gen->buffer, "vertex ");
break;
case VKD3D_SHADER_TYPE_PIXEL:
vkd3d_string_buffer_printf(gen->buffer, "fragment ");
break;
default:
msl_compiler_error(gen, VKD3D_SHADER_ERROR_MSL_INTERNAL,
"Internal compiler error: Unhandled shader type %#x.", type);
return;
}
vkd3d_string_buffer_printf(gen->buffer, "vkd3d_%s_out shader_entry(\n", gen->prefix);
/* TODO: descriptor declaration */
msl_print_indent(gen->buffer, 1);
vkd3d_string_buffer_printf(gen->buffer, "vkd3d_%s_in input [[stage_in]])\n{\n", gen->prefix);
/* TODO: declare #maximum_register + 1 */
vkd3d_string_buffer_printf(gen->buffer, " vkd3d_vec4 %s_in[%u];\n", gen->prefix, 32);
vkd3d_string_buffer_printf(gen->buffer, " vkd3d_vec4 %s_out[%u];\n", gen->prefix, 32);
vkd3d_string_buffer_printf(gen->buffer, " vkd3d_%s_out output;\n", gen->prefix);
/* TODO: prologue */
vkd3d_string_buffer_printf(gen->buffer, " %s_main(%s_in, %s_out);\n", gen->prefix, gen->prefix, gen->prefix);
/* TODO: epilogue */
vkd3d_string_buffer_printf(gen->buffer, " return output;\n}\n");
}
static void msl_generator_generate(struct msl_generator *gen)
{
const struct vkd3d_shader_instruction_array *instructions = &gen->program->instructions;
@ -481,7 +520,10 @@ static void msl_generator_generate(struct msl_generator *gen)
msl_generate_input_struct_declarations(gen);
msl_generate_output_struct_declarations(gen);
vkd3d_string_buffer_printf(gen->buffer, "void %s_main()\n{\n", gen->prefix);
vkd3d_string_buffer_printf(gen->buffer,
"void %s_main(thread vkd3d_vec4 *v, "
"thread vkd3d_vec4 *o)\n{\n",
gen->prefix);
++gen->indent;
@ -496,7 +538,11 @@ static void msl_generator_generate(struct msl_generator *gen)
msl_handle_instruction(gen, &instructions->elements[i]);
}
vkd3d_string_buffer_printf(gen->buffer, "}\n");
--gen->indent;
vkd3d_string_buffer_printf(gen->buffer, "}\n\n");
msl_generate_entrypoint(gen);
if (TRACE_ON())
vkd3d_string_buffer_trace(gen->buffer);