llvm->context_ptr_type = LLVMPointerType(context_type, 0);
}
+ {
+ LLVMTypeRef buffer_ptr = LLVMPointerType(LLVMOpaqueType(), 0);
+ llvm->buffer_ptr_type = LLVMArrayType(buffer_ptr, PIPE_MAX_ATTRIBS);
+ }
}
struct draw_llvm *
void
draw_llvm_prepare(struct draw_llvm *llvm)
{
+ draw_llvm_generate(llvm);
}
static void
generate_vs(struct draw_llvm *llvm,
LLVMBuilderRef builder,
+ LLVMValueRef (*outputs)[NUM_CHANNELS],
+ const LLVMValueRef (*inputs)[NUM_CHANNELS],
LLVMValueRef context_ptr,
LLVMValueRef io)
{
const struct tgsi_token *tokens = llvm->draw->vs.vertex_shader->state.tokens;
struct lp_type vs_type = lp_type_float(32);
LLVMValueRef vs_consts;
- const LLVMValueRef (*inputs)[NUM_CHANNELS];
- LLVMValueRef (*outputs)[NUM_CHANNELS];
lp_build_tgsi_soa(builder,
tokens,
NULL/*sampler*/);
}
+static void
+generate_fetch(LLVMBuilderRef builder,
+ const LLVMValueRef vbuffers_ptr,
+ LLVMValueRef *res,
+ struct pipe_vertex_element *velem,
+ struct pipe_vertex_buffer *vbuf,
+ LLVMValueRef index)
+{
+ LLVMValueRef indices = LLVMConstInt(LLVMInt32Type(),
+ velem->vertex_buffer_index, 0);
+ LLVMValueRef vbuffer_ptr = LLVMBuildGEP(builder, vbuffers_ptr,
+ &indices, 1, "");
+ LLVMValueRef stride = LLVMBuildMul(builder,
+ LLVMConstInt(LLVMInt32Type(), vbuf->stride, 0),
+ index, "");
+ stride = LLVMBuildAdd(builder, stride,
+ LLVMConstInt(LLVMInt32Type(), vbuf->buffer_offset, 0),
+ "");
+ stride = LLVMBuildAdd(builder, stride,
+ LLVMConstInt(LLVMInt32Type(), velem->src_offset, 0),
+ "");
+
+ vbuffer_ptr = LLVMBuildGEP(builder, vbuffer_ptr, &stride, 1, "");
+
+ *res = draw_llvm_translate_from(builder, vbuffer_ptr, velem->src_format);
+}
+
+static LLVMValueRef
+aos_to_soa(LLVMBuilderRef builder,
+ LLVMValueRef val0,
+ LLVMValueRef val1,
+ LLVMValueRef val2,
+ LLVMValueRef val3,
+ LLVMValueRef channel)
+{
+ LLVMValueRef ex, res;
+
+ ex = LLVMBuildExtractElement(builder, val0,
+ channel, "");
+ res = LLVMBuildInsertElement(builder,
+ LLVMConstNull(LLVMTypeOf(val0)),
+ ex,
+ LLVMConstInt(LLVMInt32Type(), 0, 0),
+ "");
+
+ ex = LLVMBuildExtractElement(builder, val1,
+ channel, "");
+ res = LLVMBuildInsertElement(builder,
+ res, ex,
+ LLVMConstInt(LLVMInt32Type(), 1, 0),
+ "");
+
+ ex = LLVMBuildExtractElement(builder, val2,
+ channel, "");
+ res = LLVMBuildInsertElement(builder,
+ res, ex,
+ LLVMConstInt(LLVMInt32Type(), 2, 0),
+ "");
+
+ ex = LLVMBuildExtractElement(builder, val3,
+ channel, "");
+ res = LLVMBuildInsertElement(builder,
+ res, ex,
+ LLVMConstInt(LLVMInt32Type(), 3, 0),
+ "");
+
+ return res;
+}
+
+static void
+convert_to_soa(LLVMBuilderRef builder,
+ LLVMValueRef (*aos)[NUM_CHANNELS],
+ LLVMValueRef (*soa)[NUM_CHANNELS],
+ int num_attribs)
+{
+ int i;
+
+ debug_assert(NUM_CHANNELS == 4);
+
+ for (i = 0; i < num_attribs; ++i) {
+ LLVMValueRef val0 = aos[i][0];
+ LLVMValueRef val1 = aos[i][1];
+ LLVMValueRef val2 = aos[i][2];
+ LLVMValueRef val3 = aos[i][3];
+
+ soa[i][0] = aos_to_soa(builder, val0, val1, val2, val3,
+ LLVMConstInt(LLVMInt32Type(), 0, 0));
+ soa[i][1] = aos_to_soa(builder, val0, val1, val2, val3,
+ LLVMConstInt(LLVMInt32Type(), 1, 0));
+ soa[i][2] = aos_to_soa(builder, val0, val1, val2, val3,
+ LLVMConstInt(LLVMInt32Type(), 2, 0));
+ soa[i][3] = aos_to_soa(builder, val0, val1, val2, val3,
+ LLVMConstInt(LLVMInt32Type(), 3, 0));
+
+ }
+}
+
void
draw_llvm_generate(struct draw_llvm *llvm)
{
- LLVMTypeRef arg_types[5];
+ LLVMTypeRef arg_types[6];
LLVMTypeRef func_type;
LLVMValueRef context_ptr;
LLVMBasicBlockRef block;
LLVMBuilderRef builder;
LLVMValueRef function;
LLVMValueRef start, end, count, stride, step;
- LLVMValueRef io_ptr;
- unsigned i;
+ LLVMValueRef io_ptr, vbuffers_ptr;
+ struct draw_context *draw = llvm->draw;
+ unsigned i, j;
unsigned chan;
struct lp_build_context bld;
struct lp_build_loop_state lp_loop;
- struct lp_type vs_type = lp_type_float(32);
+ struct lp_type vs_type = lp_type_float_vec(32);
+ const int max_vertices = 4;
+ LLVMValueRef outputs[PIPE_MAX_SHADER_OUTPUTS][NUM_CHANNELS];
arg_types[0] = llvm->context_ptr_type; /* context */
arg_types[1] = llvm->vertex_header_ptr_type; /* vertex_header */
- arg_types[2] = LLVMInt32Type(); /* start */
- arg_types[3] = LLVMInt32Type(); /* count */
- arg_types[4] = LLVMInt32Type(); /* stride */
+ arg_types[2] = llvm->buffer_ptr_type; /* vbuffers */
+ arg_types[3] = LLVMInt32Type(); /* start */
+ arg_types[4] = LLVMInt32Type(); /* count */
+ arg_types[5] = LLVMInt32Type(); /* stride */
func_type = LLVMFunctionType(LLVMVoidType(), arg_types, Elements(arg_types), 0);
context_ptr = LLVMGetParam(function, 0);
io_ptr = LLVMGetParam(function, 1);
- start = LLVMGetParam(function, 2);
- count = LLVMGetParam(function, 3);
- stride = LLVMGetParam(function, 4);
+ vbuffers_ptr = LLVMGetParam(function, 2);
+ start = LLVMGetParam(function, 3);
+ count = LLVMGetParam(function, 4);
+ stride = LLVMGetParam(function, 5);
lp_build_name(context_ptr, "context");
lp_build_name(io_ptr, "io");
+ lp_build_name(vbuffers_ptr, "vbuffers");
lp_build_name(start, "start");
lp_build_name(count, "count");
lp_build_name(stride, "stride");
end = lp_build_add(&bld, start, count);
- step = LLVMConstInt(LLVMInt32Type(), 1, 0);
+ step = LLVMConstInt(LLVMInt32Type(), max_vertices, 0);
lp_build_loop_begin(builder, start, &lp_loop);
{
+ LLVMValueRef inputs[PIPE_MAX_SHADER_INPUTS][NUM_CHANNELS];
+ LLVMValueRef aos_attribs[PIPE_MAX_SHADER_INPUTS][NUM_CHANNELS];
LLVMValueRef io = LLVMBuildGEP(builder, io_ptr, &lp_loop.counter, 1, "");
+ for (i = 0; i < NUM_CHANNELS; ++i) {
+ LLVMValueRef true_index = LLVMBuildAdd(
+ builder,
+ lp_loop.counter,
+ LLVMConstInt(LLVMInt32Type(), i, 0), "");
+ for (j = 0; j < draw->pt.nr_vertex_elements; ++j) {
+ struct pipe_vertex_element *velem = &draw->pt.vertex_element[j];
+ struct pipe_vertex_buffer *vbuf = &draw->pt.vertex_buffer[
+ velem->vertex_buffer_index];
+
+ generate_fetch(builder, vbuffers_ptr,
+ &aos_attribs[j][i], velem, vbuf, true_index);
+ }
+ }
+ convert_to_soa(builder, inputs, aos_attribs,
+ draw->pt.nr_vertex_elements);
+
generate_vs(llvm,
builder,
+ outputs,
+ inputs,
context_ptr,
io);
}
{PIPE_FORMAT_B8G8R8A8_UNORM, from_8_unorm, to_8_unorm, LLVMIntType(), 4},
};
-/**
- * Fetch vertex attributes for 'count' vertices.
- */
-static void PIPE_CDECL generic_run_elts( struct translate *translate,
- const unsigned *elts,
- unsigned count,
- unsigned instance_id,
- void *output_buffer )
-{
- struct translate_generic *tg = translate_generic(translate);
- char *vert = output_buffer;
- unsigned nr_attrs = tg->nr_attrib;
- unsigned attr;
- unsigned i;
-
- /* loop over vertex attributes (vertex shader inputs)
- */
- for (i = 0; i < count; i++) {
- unsigned elt = *elts++;
-
- for (attr = 0; attr < nr_attrs; attr++) {
- float data[4];
- const char *src;
-
- char *dst = (vert +
- tg->attrib[attr].output_offset);
-
- if (tg->attrib[attr].instance_divisor) {
- src = tg->attrib[attr].input_ptr +
- tg->attrib[attr].input_stride *
- (instance_id / tg->attrib[attr].instance_divisor);
- } else {
- src = tg->attrib[attr].input_ptr +
- tg->attrib[attr].input_stride * elt;
- }
-
- tg->attrib[attr].fetch( src, data );
-
- if (0) debug_printf("vert %d/%d attr %d: %f %f %f %f\n",
- i, elt, attr, data[0], data[1], data[2], data[3]);
-
- tg->attrib[attr].emit( data, dst );
- }
-
- vert += tg->translate.key.output_stride;
- }
-}
-
-
-static void PIPE_CDECL generic_run( struct translate *translate,
- unsigned start,
- unsigned count,
- unsigned instance_id,
- void *output_buffer )
+LLVMValueRef
+draw_llvm_translate_from(LLVMBuilderRef builder,
+ LLVMValueRef vbuffer,
+ enum pipe_format from_format)
{
- struct translate_generic *tg = translate_generic(translate);
- char *vert = output_buffer;
- unsigned nr_attrs = tg->nr_attrib;
- unsigned attr;
- unsigned i;
-
- /* loop over vertex attributes (vertex shader inputs)
- */
- for (i = 0; i < count; i++) {
- unsigned elt = start + i;
-
- for (attr = 0; attr < nr_attrs; attr++) {
- float data[4];
-
- char *dst = (vert +
- tg->attrib[attr].output_offset);
-
- if (tg->attrib[attr].type == TRANSLATE_ELEMENT_NORMAL) {
- const char *src;
-
- if (tg->attrib[attr].instance_divisor) {
- src = tg->attrib[attr].input_ptr +
- tg->attrib[attr].input_stride *
- (instance_id / tg->attrib[attr].instance_divisor);
- } else {
- src = tg->attrib[attr].input_ptr +
- tg->attrib[attr].input_stride * elt;
- }
-
- tg->attrib[attr].fetch( src, data );
- } else {
- data[0] = (float)instance_id;
- }
-
- if (0) debug_printf("vert %d attr %d: %f %f %f %f\n",
- i, attr, data[0], data[1], data[2], data[3]);
-
- tg->attrib[attr].emit( data, dst );
- }
-
- vert += tg->translate.key.output_stride;
- }
-}
-
-
-
-static void generic_set_buffer( struct translate *translate,
- unsigned buf,
- const void *ptr,
- unsigned stride )
-{
- struct translate_generic *tg = translate_generic(translate);
- unsigned i;
-
- for (i = 0; i < tg->nr_attrib; i++) {
- if (tg->attrib[i].buffer == buf) {
- tg->attrib[i].input_ptr = ((char *)ptr +
- tg->attrib[i].input_offset);
- tg->attrib[i].input_stride = stride;
+ int i;
+ for (i = 0; i < Elements(translates); ++i) {
+ if (translates[i].format == from_format) {
+ return translates.from_func(builder, vbuffer, from_format);
}
}
-}
-
-
-static void generic_release( struct translate *translate )
-{
- /* Refcount?
- */
- FREE(translate);
-}
-
-struct translate *translate_generic_create( const struct translate_key *key )
-{
- struct translate_generic *tg = CALLOC_STRUCT(translate_generic);
- unsigned i;
-
- if (tg == NULL)
- return NULL;
-
- tg->translate.key = *key;
- tg->translate.release = generic_release;
- tg->translate.set_buffer = generic_set_buffer;
- tg->translate.run_elts = generic_run_elts;
- tg->translate.run = generic_run;
-
- for (i = 0; i < key->nr_elements; i++) {
- tg->attrib[i].type = key->element[i].type;
-
- tg->attrib[i].fetch = get_fetch_func(key->element[i].input_format);
- tg->attrib[i].buffer = key->element[i].input_buffer;
- tg->attrib[i].input_offset = key->element[i].input_offset;
- tg->attrib[i].instance_divisor = key->element[i].instance_divisor;
-
- tg->attrib[i].emit = get_emit_func(key->element[i].output_format);
- tg->attrib[i].output_offset = key->element[i].output_offset;
-
- }
-
- tg->nr_attrib = key->nr_elements;
-
-
- return &tg->translate;
+ return LLVMGetUndef(LLVMTypeOf(vbuffer));
}
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