On 03/26/2013 10:38 AM, Zack Rusin wrote:
This commits implements code generation of the geometry shaders in
the SOA paths. All the code is there but bugs are likely present.
Signed-off-by: Zack Rusin<za...@vmware.com>
---
src/gallium/auxiliary/draw/draw_context.c | 17 +-
src/gallium/auxiliary/draw/draw_context.h | 5 +
src/gallium/auxiliary/draw/draw_gs.c | 297 +++++++++-
src/gallium/auxiliary/draw/draw_gs.h | 26 +-
src/gallium/auxiliary/draw/draw_llvm.c | 567 ++++++++++++++++++--
src/gallium/auxiliary/draw/draw_llvm.h | 161 +++++-
.../draw/draw_pt_fetch_shade_pipeline_llvm.c | 75 +++
src/gallium/auxiliary/gallivm/lp_bld_tgsi.h | 27 +-
src/gallium/auxiliary/gallivm/lp_bld_tgsi_soa.c | 173 +++++-
src/gallium/drivers/llvmpipe/lp_state_fs.c | 4 +-
10 files changed, 1273 insertions(+), 79 deletions(-)
diff --git a/src/gallium/auxiliary/draw/draw_context.c
b/src/gallium/auxiliary/draw/draw_context.c
index 6b70ac8..d64b82b 100644
--- a/src/gallium/auxiliary/draw/draw_context.c
+++ b/src/gallium/auxiliary/draw/draw_context.c
@@ -46,7 +46,7 @@
#include "gallivm/lp_bld_limits.h"
#include "draw_llvm.h"
-static boolean
+boolean
draw_get_option_use_llvm(void)
{
static boolean first = TRUE;
@@ -808,16 +808,15 @@ draw_set_mapped_texture(struct draw_context *draw,
uint32_t img_stride[PIPE_MAX_TEXTURE_LEVELS],
uint32_t mip_offsets[PIPE_MAX_TEXTURE_LEVELS])
{
- if (shader_stage == PIPE_SHADER_VERTEX) {
#ifdef HAVE_LLVM
- if (draw->llvm)
- draw_llvm_set_mapped_texture(draw,
- sview_idx,
- width, height, depth, first_level,
- last_level, base_ptr,
- row_stride, img_stride, mip_offsets);
+ if (draw->llvm)
+ draw_llvm_set_mapped_texture(draw,
+ shader_stage,
+ sview_idx,
+ width, height, depth, first_level,
+ last_level, base_ptr,
+ row_stride, img_stride, mip_offsets);
#endif
- }
}
/**
diff --git a/src/gallium/auxiliary/draw/draw_context.h
b/src/gallium/auxiliary/draw/draw_context.h
index 18c8595..369f6c8 100644
--- a/src/gallium/auxiliary/draw/draw_context.h
+++ b/src/gallium/auxiliary/draw/draw_context.h
@@ -282,4 +282,9 @@ draw_get_shader_param(unsigned shader, enum pipe_shader_cap
param);
int
draw_get_shader_param_no_llvm(unsigned shader, enum pipe_shader_cap param);
+#ifdef HAVE_LLVM
+boolean
+draw_get_option_use_llvm(void);
+#endif
+
#endif /* DRAW_CONTEXT_H */
diff --git a/src/gallium/auxiliary/draw/draw_gs.c
b/src/gallium/auxiliary/draw/draw_gs.c
index 2b50c9c..c1e1f56 100644
--- a/src/gallium/auxiliary/draw/draw_gs.c
+++ b/src/gallium/auxiliary/draw/draw_gs.c
@@ -29,6 +29,9 @@
#include "draw_private.h"
#include "draw_context.h"
+#ifdef HAVE_LLVM
+#include "draw_llvm.h"
+#endif
#include "tgsi/tgsi_parse.h"
#include "tgsi/tgsi_exec.h"
@@ -61,7 +64,7 @@ draw_gs_get_input_index(int semantic, int index,
static INLINE boolean
draw_gs_should_flush(struct draw_geometry_shader *shader)
{
- return (shader->fetched_prim_count == 4);
+ return (shader->fetched_prim_count == shader->vector_length);
}
/*#define DEBUG_OUTPUTS 1*/
@@ -176,7 +179,7 @@ static void tgsi_fetch_gs_input(struct draw_geometry_shader
*shader,
}
static void tgsi_gs_prepare(struct draw_geometry_shader *shader,
- const void *constants[PIPE_MAX_CONSTANT_BUFFERS],
+ const void *constants[PIPE_MAX_CONSTANT_BUFFERS],
const unsigned
constants_size[PIPE_MAX_CONSTANT_BUFFERS])
{
struct tgsi_exec_machine *machine = shader->machine;
@@ -199,10 +202,148 @@ static unsigned tgsi_gs_run(struct draw_geometry_shader
*shader,
/* run interpreter */
tgsi_exec_machine_run(machine);
- return
+ return
machine->Temps[TGSI_EXEC_TEMP_PRIMITIVE_I].xyzw[TGSI_EXEC_TEMP_PRIMITIVE_C].u[0];
}
+#ifdef HAVE_LLVM
+
+static void
+llvm_fetch_gs_input(struct draw_geometry_shader *shader,
+ unsigned *indices,
+ unsigned num_vertices,
+ unsigned prim_idx)
+{
+ unsigned slot, vs_slot, i;
+ unsigned input_vertex_stride = shader->input_vertex_stride;
+ const float (*input_ptr)[4];
+ float (*input_data)[6][PIPE_MAX_SHADER_INPUTS][TGSI_NUM_CHANNELS][TGSI_NUM_CHANNELS]
=&shader->gs_input->data;
+
+ input_ptr = shader->input;
+
+ for (i = 0; i< num_vertices; ++i) {
+ const float (*input)[4];
+#if DEBUG_INPUTS
+ debug_printf("%d) vertex index = %d (prim idx = %d)\n",
+ i, indices[i], prim_idx);
+#endif
+ input = (const float (*)[4])(
+ (const char *)input_ptr + (indices[i] * input_vertex_stride));
+ for (slot = 0, vs_slot = 0; slot< shader->info.num_inputs; ++slot) {
+ if (shader->info.input_semantic_name[slot] == TGSI_SEMANTIC_PRIMID) {
+ (*input_data)[i][slot][0][prim_idx] = (float)shader->in_prim_idx;
+ (*input_data)[i][slot][1][prim_idx] = (float)shader->in_prim_idx;
+ (*input_data)[i][slot][2][prim_idx] = (float)shader->in_prim_idx;
+ (*input_data)[i][slot][3][prim_idx] = (float)shader->in_prim_idx;
+ } else {
+ vs_slot = draw_gs_get_input_index(
+ shader->info.input_semantic_name[slot],
+ shader->info.input_semantic_index[slot],
+ shader->input_info);
+#if DEBUG_INPUTS
+ debug_printf("\tSlot = %d, vs_slot = %d, idx = %d:\n",
+ slot, vs_slot, idx);
+#endif
+#if 0
+ assert(!util_is_inf_or_nan(input[vs_slot][0]));
+ assert(!util_is_inf_or_nan(input[vs_slot][1]));
+ assert(!util_is_inf_or_nan(input[vs_slot][2]));
+ assert(!util_is_inf_or_nan(input[vs_slot][3]));
+#endif
+ (*input_data)[i][slot][0][prim_idx] = input[vs_slot][0];
+ (*input_data)[i][slot][1][prim_idx] = input[vs_slot][1];
+ (*input_data)[i][slot][2][prim_idx] = input[vs_slot][2];
+ (*input_data)[i][slot][3][prim_idx] = input[vs_slot][3];
+#if DEBUG_INPUTS
+ debug_printf("\t\t%f %f %f %f\n",
+ (*input_data)[i][slot][0][prim_idx],
+ (*input_data)[i][slot][1][prim_idx],
+ (*input_data)[i][slot][2][prim_idx],
+ (*input_data)[i][slot][3][prim_idx]);
+#endif
+ ++vs_slot;
+ }
+ }
+ }
+}
+
+static void
+llvm_fetch_gs_outputs(struct draw_geometry_shader *shader,
+ unsigned num_primitives,
+ float (**p_output)[4])
+{
+ int total_verts = 0;
+ int vertex_count = 0;
+ int total_prims = 0;
+ int max_prims_per_invocation = 0;
+ char *output_ptr = (char*)shader->gs_output;
+ int i, j, prim_idx;
+
+ for (i = 0; i< shader->vector_length; ++i) {
+ int prims = shader->llvm_emitted_primitives[i];
+ total_prims += prims;
+ max_prims_per_invocation = MAX2(max_prims_per_invocation, prims);
+ }
+ for (int i = 0; i< shader->vector_length; ++i) {
remove int decl.
+ total_verts += shader->llvm_emitted_vertices[i];
+ }
+
+
+ output_ptr += shader->emitted_vertices * shader->vertex_size;
+ for (i = 0; i< shader->vector_length - 1; ++i) {
+ int current_verts = shader->llvm_emitted_vertices[i];
+
+ if (current_verts != shader->max_output_vertices) {
+ memcpy(output_ptr + (vertex_count + current_verts) *
shader->vertex_size,
+ output_ptr + (vertex_count + shader->max_output_vertices) *
shader->vertex_size,
+ shader->vertex_size * (total_verts - vertex_count -
current_verts));
+ }
+ vertex_count += current_verts;
+ }
+
+ prim_idx = 0;
+ for (i = 0; i< shader->vector_length; ++i) {
+ int num_prims = shader->llvm_emitted_primitives[i];
+ for (j = 0; j< num_prims; ++j) {
+ int prim_length =
+ shader->llvm_prim_lengths[j][i];
+ shader->primitive_lengths[shader->emitted_primitives + prim_idx] =
+ prim_length;
+ ++prim_idx;
+ }
+ }
+
+ shader->emitted_primitives += total_prims;
+ shader->emitted_vertices += total_verts;
+}
+
+static void
+llvm_gs_prepare(struct draw_geometry_shader *shader,
+ const void *constants[PIPE_MAX_CONSTANT_BUFFERS],
+ const unsigned constants_size[PIPE_MAX_CONSTANT_BUFFERS])
+{
+}
+
+static unsigned
+llvm_gs_run(struct draw_geometry_shader *shader,
+ unsigned input_primitives)
+{
+ unsigned ret;
+ char *input = (char*)shader->gs_output;
+
+ input += (shader->emitted_vertices * shader->vertex_size);
+
+ ret = shader->current_variant->jit_func(
+ shader->jit_context, shader->gs_input->data,
+ (struct vertex_header*)input,
+ input_primitives,
+ shader->draw->instance_id);
+
+ return ret;
+}
+
+#endif
+
static void gs_flush(struct draw_geometry_shader *shader)
{
unsigned out_prim_count;
@@ -213,13 +354,15 @@ static void gs_flush(struct draw_geometry_shader *shader)
input_primitives<= 4);
out_prim_count = shader->run(shader, input_primitives);
+ shader->fetch_outputs(shader, out_prim_count,
+&shader->tmp_output);
+
#if 0
debug_printf("PRIM emitted prims = %d (verts=%d), cur prim count = %d\n",
shader->emitted_primitives, shader->emitted_vertices,
out_prim_count);
#endif
- shader->fetch_outputs(shader, out_prim_count,
-&shader->tmp_output);
+
shader->fetched_prim_count = 0;
}
@@ -325,8 +468,8 @@ static void gs_tri_adj(struct draw_geometry_shader *shader,
* Execute geometry shader.
*/
int draw_geometry_shader_run(struct draw_geometry_shader *shader,
- const void *constants[PIPE_MAX_CONSTANT_BUFFERS],
- const unsigned
constants_size[PIPE_MAX_CONSTANT_BUFFERS],
+ const void *constants[PIPE_MAX_CONSTANT_BUFFERS],
+ const unsigned
constants_size[PIPE_MAX_CONSTANT_BUFFERS],
const struct draw_vertex_info *input_verts,
const struct draw_prim_info *input_prim,
const struct tgsi_shader_info *input_info,
@@ -338,14 +481,20 @@ int draw_geometry_shader_run(struct draw_geometry_shader
*shader,
unsigned num_outputs = shader->info.num_outputs;
unsigned vertex_size = sizeof(struct vertex_header) + num_outputs * 4 *
sizeof(float);
unsigned num_input_verts = input_prim->linear ?
- input_verts->count :
- input_prim->count;
+ input_verts->count :
+ input_prim->count;
unsigned num_in_primitives =
- MAX2(u_gs_prims_for_vertices(input_prim->prim, num_input_verts),
- u_gs_prims_for_vertices(shader->input_primitive, num_input_verts));
+ align(
+ MAX2(u_gs_prims_for_vertices(input_prim->prim, num_input_verts),
+ u_gs_prims_for_vertices(shader->input_primitive,
num_input_verts)),
+ shader->vector_length);
unsigned max_out_prims = u_gs_prims_for_vertices(shader->output_primitive,
shader->max_output_vertices)
- * num_in_primitives;
+ * num_in_primitives;
+
+ //Assume at least one primitive
+ max_out_prims = MAX2(max_out_prims, 1);
+
output_verts->vertex_size = vertex_size;
output_verts->stride = output_verts->vertex_size;
@@ -379,6 +528,34 @@ int draw_geometry_shader_run(struct draw_geometry_shader
*shader,
FREE(shader->primitive_lengths);
shader->primitive_lengths = MALLOC(max_out_prims * sizeof(unsigned));
+
+#ifdef HAVE_LLVM
+ if (draw_get_option_use_llvm()) {
+ shader->gs_output = output_verts->verts;
+ if (max_out_prims> shader->max_out_prims) {
+ int i;
'unsigned i' since shader->max_out_prims is unsigned, to avoid MVSC
warnings.
+ if (shader->llvm_prim_lengths) {
+ for (i = 0; i< shader->max_out_prims; ++i) {
+ align_free(shader->llvm_prim_lengths[i]);
+ }
+ free(shader->llvm_prim_lengths);
+ }
+
+ shader->llvm_prim_lengths = malloc(max_out_prims * sizeof(unsigned*));
+ for (i = 0; i< max_out_prims; ++i) {
+ int vector_size = shader->vector_length * sizeof(unsigned);
+ shader->llvm_prim_lengths[i] =
+ align_malloc(vector_size, vector_size);
+ }
+
+ shader->max_out_prims = max_out_prims;
+ }
+ shader->jit_context->prim_lengths = shader->llvm_prim_lengths;
+ shader->jit_context->emitted_vertices = shader->llvm_emitted_vertices;
+ shader->jit_context->emitted_prims = shader->llvm_emitted_primitives;
+ }
+#endif
+
shader->prepare(shader, constants, constants_size);
if (input_prim->linear)
@@ -458,10 +635,27 @@ struct draw_geometry_shader *
draw_create_geometry_shader(struct draw_context *draw,
const struct pipe_shader_state *state)
{
+#ifdef HAVE_LLVM
+ struct llvm_geometry_shader *llvm_gs;
+#endif
struct draw_geometry_shader *gs;
unsigned i;
- gs = CALLOC_STRUCT(draw_geometry_shader);
+#ifdef HAVE_LLVM
+ if (draw_get_option_use_llvm()) {
+ llvm_gs = CALLOC_STRUCT(llvm_geometry_shader);
+
+ if (llvm_gs == NULL)
+ return NULL;
+
+ gs =&llvm_gs->base;
+
+ make_empty_list(&llvm_gs->variants);
+ } else
+#endif
+ {
+ gs = CALLOC_STRUCT(draw_geometry_shader);
+ }
if (!gs)
return NULL;
@@ -480,6 +674,14 @@ draw_create_geometry_shader(struct draw_context *draw,
gs->input_primitive = PIPE_PRIM_TRIANGLES;
gs->output_primitive = PIPE_PRIM_TRIANGLE_STRIP;
gs->max_output_vertices = 32;
+ gs->max_out_prims = 0;
+
+ if (draw_get_option_use_llvm()) {
+ //gs->vector_length = lp_native_vector_width / 32;
+ gs->vector_length = TGSI_NUM_CHANNELS;
Is this a "to do" item or something unresolved?
+ } else {
+ gs->vector_length = TGSI_NUM_CHANNELS;
+ }
for (i = 0; i< gs->info.num_properties; ++i) {
if (gs->info.properties[i].name ==
@@ -501,10 +703,36 @@ draw_create_geometry_shader(struct draw_context *draw,
gs->machine = draw->gs.tgsi.machine;
- gs->fetch_outputs = tgsi_fetch_gs_outputs;
- gs->fetch_inputs = tgsi_fetch_gs_input;
- gs->prepare = tgsi_gs_prepare;
- gs->run = tgsi_gs_run;
+#ifdef HAVE_LLVM
+ if (draw_get_option_use_llvm()) {
+ int vector_size = gs->vector_length * sizeof(float);
+ gs->gs_input = align_malloc(sizeof(struct draw_gs_inputs), 16);
+ memset(gs->gs_input, 0, sizeof(struct draw_gs_inputs));
+ gs->llvm_prim_lengths = 0;
+
+ gs->llvm_emitted_primitives = align_malloc(vector_size, vector_size);
+ gs->llvm_emitted_vertices = align_malloc(vector_size, vector_size);
+
+ gs->fetch_outputs = llvm_fetch_gs_outputs;
+ gs->fetch_inputs = llvm_fetch_gs_input;
+ gs->prepare = llvm_gs_prepare;
+ gs->run = llvm_gs_run;
+
+ gs->jit_context =&draw->llvm->gs_jit_context;
+
+
+ llvm_gs->variant_key_size =
+ draw_gs_llvm_variant_key_size(
+ MAX2(gs->info.file_max[TGSI_FILE_SAMPLER]+1,
+ gs->info.file_max[TGSI_FILE_SAMPLER_VIEW]+1));
+ } else
+#endif
+ {
+ gs->fetch_outputs = tgsi_fetch_gs_outputs;
+ gs->fetch_inputs = tgsi_fetch_gs_input;
+ gs->prepare = tgsi_gs_prepare;
+ gs->run = tgsi_gs_run;
+ }
return gs;
}
@@ -529,7 +757,42 @@ void draw_bind_geometry_shader(struct draw_context *draw,
void draw_delete_geometry_shader(struct draw_context *draw,
struct draw_geometry_shader *dgs)
{
+#ifdef HAVE_LLVM
+ if (draw_get_option_use_llvm()) {
+ struct llvm_geometry_shader *shader = llvm_geometry_shader(dgs);
+ struct draw_gs_llvm_variant_list_item *li;
+
+ li = first_elem(&shader->variants);
+ while(!at_end(&shader->variants, li)) {
+ struct draw_gs_llvm_variant_list_item *next = next_elem(li);
+ draw_gs_llvm_destroy_variant(li->base);
+ li = next;
+ }
+
+ assert(shader->variants_cached == 0);
+
+ if (dgs->llvm_prim_lengths) {
+ unsigned i;
+ for (i = 0; i< dgs->max_out_prims; ++i) {
+ align_free(dgs->llvm_prim_lengths[i]);
+ }
+ free(dgs->llvm_prim_lengths);
+ }
+ align_free(dgs->llvm_emitted_primitives);
+ align_free(dgs->llvm_emitted_vertices);
+
+ align_free(dgs->gs_input);
+ }
+#endif
+
FREE(dgs->primitive_lengths);
FREE((void*) dgs->state.tokens);
FREE(dgs);
}
+
+
+void draw_gs_set_current_variant(struct draw_geometry_shader *shader,
+ struct draw_gs_llvm_variant *variant)
+{
+ shader->current_variant = variant;
+}
diff --git a/src/gallium/auxiliary/draw/draw_gs.h
b/src/gallium/auxiliary/draw/draw_gs.h
index 7ab4f04..62bfcab 100644
--- a/src/gallium/auxiliary/draw/draw_gs.h
+++ b/src/gallium/auxiliary/draw/draw_gs.h
@@ -31,11 +31,19 @@
#include "draw_context.h"
#include "draw_private.h"
-
#define MAX_TGSI_PRIMITIVES 4
struct draw_context;
+#ifdef HAVE_LLVM
+struct draw_gs_jit_context;
+struct draw_gs_llvm_variant;
+
+struct draw_gs_inputs {
+ float data[6][PIPE_MAX_SHADER_INPUTS][TGSI_NUM_CHANNELS][TGSI_NUM_CHANNELS];
Could you add some extra comments explaining all these array
dimensions? it's a bit overwhelming.
+};
+#endif
+
/**
* Private version of the compiled geometry shader
*/
@@ -66,6 +74,19 @@ struct draw_geometry_shader {
unsigned fetched_prim_count;
const float (*input)[4];
const struct tgsi_shader_info *input_info;
+ unsigned vector_length;
+ unsigned max_out_prims;
+
+#ifdef HAVE_LLVM
+ struct draw_gs_inputs *gs_input;
+ struct draw_gs_jit_context *jit_context;
+ struct draw_gs_llvm_variant *current_variant;
+ struct vertex_header *gs_output;
+
+ int **llvm_prim_lengths;
+ int *llvm_emitted_primitives;
+ int *llvm_emitted_vertices;
Should any of those be unsigned?
+#endif
void (*fetch_inputs)(struct draw_geometry_shader *shader,
unsigned *indices,
@@ -102,4 +123,7 @@ void draw_geometry_shader_prepare(struct
draw_geometry_shader *shader,
int draw_gs_max_output_vertices(struct draw_geometry_shader *shader,
unsigned pipe_prim);
+void draw_gs_set_current_variant(struct draw_geometry_shader *shader,
+ struct draw_gs_llvm_variant *variant);
+
#endif
+static void
+draw_gs_llvm_generate(struct draw_llvm *llvm,
+ struct draw_gs_llvm_variant *variant)
+{
+ struct gallivm_state *gallivm = variant->gallivm;
+ LLVMContextRef context = gallivm->context;
+ LLVMTypeRef int32_type = LLVMInt32TypeInContext(context);
+ LLVMTypeRef arg_types[5];
+ LLVMTypeRef func_type;
+ LLVMValueRef variant_func;
+ LLVMValueRef context_ptr;
+ LLVMBasicBlockRef block;
+ LLVMBuilderRef builder;
+ LLVMValueRef io_ptr, input_array, num_prims, mask_val;
+ struct lp_build_sampler_soa *sampler = 0;
+ struct lp_build_context bld;
+ struct lp_bld_tgsi_system_values system_values;
+ struct lp_type gs_type;
+ unsigned i;
+ struct lp_build_tgsi_gs_args gs_args;
+ const struct tgsi_token *tokens = variant->shader->base.state.tokens;
+ LLVMValueRef consts_ptr;
+ LLVMValueRef outputs[PIPE_MAX_SHADER_OUTPUTS][TGSI_NUM_CHANNELS];
+ struct lp_build_mask_context mask;
+
+ memset(&system_values, 0, sizeof(system_values));
+
+ assert(variant->vertex_header_ptr_type);
+
+ arg_types[0] = get_gs_context_ptr_type(variant); /* context */
+ arg_types[1] = variant->input_array_type; /* input */
+ arg_types[2] = variant->vertex_header_ptr_type; /* vertex_header */
+ arg_types[3] = int32_type; /* num_prims */
+ arg_types[4] = int32_type; /* instance_id */
+
+ func_type = LLVMFunctionType(int32_type, arg_types, Elements(arg_types), 0);
+
+ variant_func = LLVMAddFunction(gallivm->module, "draw_geometry_shader",
+ func_type);
+ variant->function = variant_func;
+
+ LLVMSetFunctionCallConv(variant_func, LLVMCCallConv);
+
+ for (i = 0; i< Elements(arg_types); ++i)
+ if (LLVMGetTypeKind(arg_types[i]) == LLVMPointerTypeKind)
+ LLVMAddAttribute(LLVMGetParam(variant_func, i),
+ LLVMNoAliasAttribute);
+
+ context_ptr = LLVMGetParam(variant_func, 0);
+ input_array = LLVMGetParam(variant_func, 1);
+ io_ptr = LLVMGetParam(variant_func, 2);
+ num_prims = LLVMGetParam(variant_func, 3);
+ system_values.instance_id = LLVMGetParam(variant_func, 4);
+
+ lp_build_name(context_ptr, "context");
+ lp_build_name(input_array, "input");
+ lp_build_name(io_ptr, "io");
lp_build_name(num_prims, "num_prims");
+ lp_build_name(system_values.instance_id, "instance_id");
+
+ variant->context_ptr = context_ptr;
+ variant->io_ptr = io_ptr;
+ variant->num_prims = num_prims;
+
+ gs_args.input = input_array;
+ gs_args.emit_vertex = draw_gs_llvm_emit_vertex;
+ gs_args.end_primitive = draw_gs_llvm_end_primitive;
+ gs_args.gs_epilogue = draw_gs_llvm_epilogue;
+ gs_args.user_data = variant;
+
+ /*
+ * Function body
+ */
+
+ block = LLVMAppendBasicBlockInContext(gallivm->context, variant_func,
"entry");
+ builder = gallivm->builder;
+ LLVMPositionBuilderAtEnd(builder, block);
+
+ lp_build_context_init(&bld, gallivm, lp_type_int(32));
+
+ memset(&gs_type, 0, sizeof gs_type);
+ gs_type.floating = TRUE; /* floating point values */
+ gs_type.sign = TRUE; /* values are signed */
+ gs_type.norm = FALSE; /* values are not limited to [0,1] or [-1,1] */
+ gs_type.width = 32; /* 32-bit float */
+ gs_type.length = variant->shader->base.vector_length;
+
+ consts_ptr = draw_gs_jit_context_constants(variant->gallivm, context_ptr);
+
+ /* code generated texture sampling */
+ sampler = draw_llvm_sampler_soa_create(variant->key.samplers,
+ context_ptr);
+
+ mask_val = generate_mask_value(variant, gs_type);
+ lp_build_mask_begin(&mask, gallivm, gs_type, mask_val);
+
+ lp_build_tgsi_soa(variant->gallivm,
+ tokens,
+ gs_type,
+&mask,
+ consts_ptr,
+&system_values,
+ NULL /*pos*/,
+ NULL,
+ outputs,
+ sampler,
+&llvm->draw->gs.geometry_shader->info,
+&gs_args);
+
+ lp_build_mask_end(&mask);
+
+ LLVMBuildRet(builder, lp_build_zero(gallivm, lp_type_uint(32)));
+
+ gallivm_verify_function(gallivm, variant_func);
+}
+
+
+struct draw_gs_llvm_variant *
+draw_gs_llvm_create_variant(struct draw_llvm *llvm,
+ unsigned num_outputs,
+ const struct draw_gs_llvm_variant_key *key)
+{
+ struct draw_gs_llvm_variant *variant;
+ struct llvm_geometry_shader *shader =
+ llvm_geometry_shader(llvm->draw->gs.geometry_shader);
+ LLVMTypeRef vertex_header;
+
+ variant = MALLOC(sizeof *variant +
+ shader->variant_key_size -
+ sizeof variant->key);
+ if (variant == NULL)
+ return NULL;
+
+ variant->llvm = llvm;
+ variant->shader = shader;
+
+ variant->gallivm = gallivm_create();
+
+ create_gs_jit_types(variant);
+
+ memcpy(&variant->key, key, shader->variant_key_size);
+
+ vertex_header = create_jit_vertex_header(variant->gallivm, num_outputs);
+
+ variant->vertex_header_ptr_type = LLVMPointerType(vertex_header, 0);
+
+ draw_gs_llvm_generate(llvm, variant);
+
+ gallivm_compile_module(variant->gallivm);
+
+ variant->jit_func = (draw_gs_jit_func)
+ gallivm_jit_function(variant->gallivm, variant->function);
+
+ variant->list_item_global.base = variant;
+ variant->list_item_local.base = variant;
+ /*variant->no = */shader->variants_created++;
+ variant->list_item_global.base = variant;
+
+ return variant;
+}
+
+void
+draw_gs_llvm_destroy_variant(struct draw_gs_llvm_variant *variant)
+{
+ struct draw_llvm *llvm = variant->llvm;
+
+ if (variant->function) {
+ gallivm_free_function(variant->gallivm,
+ variant->function, variant->jit_func);
+ }
+
+ gallivm_destroy(variant->gallivm);
+
+ remove_from_list(&variant->list_item_local);
+ variant->shader->variants_cached--;
+ remove_from_list(&variant->list_item_global);
+ llvm->nr_gs_variants--;
+ FREE(variant);
+}
+
+struct draw_gs_llvm_variant_key *
+draw_gs_llvm_make_variant_key(struct draw_llvm *llvm, char *store)
+{
+ unsigned i;
+ struct draw_gs_llvm_variant_key *key;
+ struct draw_sampler_static_state *draw_sampler;
+
+ key = (struct draw_gs_llvm_variant_key *)store;
+
+ /* All variants of this shader will have the same value for
+ * nr_samplers. Not yet trying to compact away holes in the
+ * sampler array.
+ */
+ key->nr_samplers =
llvm->draw->gs.geometry_shader->info.file_max[TGSI_FILE_SAMPLER] + 1;
+ if (llvm->draw->gs.geometry_shader->info.file_max[TGSI_FILE_SAMPLER_VIEW]
!= -1) {
+ key->nr_sampler_views =
+ llvm->draw->gs.geometry_shader->info.file_max[TGSI_FILE_SAMPLER_VIEW]
+ 1;
+ }
+ else {
+ key->nr_sampler_views = key->nr_samplers;
+ }
+
+ draw_sampler = key->samplers;
+
+ memset(draw_sampler, 0, MAX2(key->nr_samplers, key->nr_sampler_views) *
sizeof *draw_sampler);
+
+ for (i = 0 ; i< key->nr_samplers; i++) {
+ lp_sampler_static_sampler_state(&draw_sampler[i].sampler_state,
+
llvm->draw->samplers[PIPE_SHADER_GEOMETRY][i]);
+ }
+ for (i = 0 ; i< key->nr_sampler_views; i++) {
+ lp_sampler_static_texture_state(&draw_sampler[i].texture_state,
+
llvm->draw->sampler_views[PIPE_SHADER_GEOMETRY][i]);
+ }
+
+ return key;
+}
+
+void
+draw_gs_llvm_dump_variant_key(struct draw_gs_llvm_variant_key *key)
+{
+
Remove blank line.
+ unsigned i;
+ struct draw_sampler_static_state *sampler = key->samplers;
+
+ for (i = 0 ; i< key->nr_sampler_views; i++) {
+ debug_printf("sampler[%i].src_format = %s\n", i,
+ util_format_name(sampler[i].texture_state.format));
+ }
+}
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