#include "lp_context.h"
#include "lp_debug.h"
#include "lp_perf.h"
-#include "lp_screen.h"
#include "lp_setup.h"
#include "lp_state.h"
#include "lp_tex_sample.h"
#include <llvm-c/BitWriter.h>
+/** Fragment shader number (for debugging) */
static unsigned fs_no = 0;
-
/**
* Expand the relevent bits of mask_input to a 4-dword mask for the
* four pixels in a 2x2 quad. This will set the four elements of the
* \param mask_input bitwise mask for the whole 4x4 stamp
*/
static LLVMValueRef
-generate_quad_mask(LLVMBuilderRef builder,
+generate_quad_mask(struct gallivm_state *gallivm,
struct lp_type fs_type,
unsigned quad,
LLVMValueRef mask_input) /* int32 */
{
+ LLVMBuilderRef builder = gallivm->builder;
struct lp_type mask_type;
- LLVMTypeRef i32t = LLVMInt32Type();
+ LLVMTypeRef i32t = LLVMInt32TypeInContext(gallivm->context);
LLVMValueRef bits[4];
LLVMValueRef mask;
int shift;
/*
* mask_input >>= (quad * 4)
*/
-
switch (quad) {
case 0:
shift = 0;
/*
* mask = { mask_input & (1 << i), for i in [0,3] }
*/
-
- mask = lp_build_broadcast(builder, lp_build_vec_type(mask_type), mask_input);
+ mask = lp_build_broadcast(gallivm,
+ lp_build_vec_type(gallivm, mask_type),
+ mask_input);
bits[0] = LLVMConstInt(i32t, 1 << 0, 0);
bits[1] = LLVMConstInt(i32t, 1 << 1, 0);
/*
* mask = mask != 0 ? ~0 : 0
*/
-
- mask = lp_build_compare(builder,
+ mask = lp_build_compare(gallivm,
mask_type, PIPE_FUNC_NOTEQUAL,
mask,
- lp_build_const_int_vec(mask_type, 0));
+ lp_build_const_int_vec(gallivm, mask_type, 0));
return mask;
}
* \param partial_mask if 1, do mask_input testing
*/
static void
-generate_fs(struct lp_fragment_shader *shader,
+generate_fs(struct gallivm_state *gallivm,
+ struct lp_fragment_shader *shader,
const struct lp_fragment_shader_variant_key *key,
LLVMBuilderRef builder,
struct lp_type type,
assert(i < 4);
- stencil_refs[0] = lp_jit_context_stencil_ref_front_value(builder, context_ptr);
- stencil_refs[1] = lp_jit_context_stencil_ref_back_value(builder, context_ptr);
+ stencil_refs[0] = lp_jit_context_stencil_ref_front_value(gallivm, context_ptr);
+ stencil_refs[1] = lp_jit_context_stencil_ref_back_value(gallivm, context_ptr);
- vec_type = lp_build_vec_type(type);
+ vec_type = lp_build_vec_type(gallivm, type);
- consts_ptr = lp_jit_context_constants(builder, context_ptr);
+ consts_ptr = lp_jit_context_constants(gallivm, context_ptr);
memset(outputs, 0, sizeof outputs);
/* Declare the color and z variables */
for(cbuf = 0; cbuf < key->nr_cbufs; cbuf++) {
for(chan = 0; chan < NUM_CHANNELS; ++chan) {
- color[cbuf][chan] = lp_build_alloca(builder, vec_type, "color");
+ color[cbuf][chan] = lp_build_alloca(gallivm, vec_type, "color");
}
}
/* do triangle edge testing */
if (partial_mask) {
- *pmask = generate_quad_mask(builder, type,
+ *pmask = generate_quad_mask(gallivm, type,
i, mask_input);
}
else {
- *pmask = lp_build_const_int_vec(type, ~0);
+ *pmask = lp_build_const_int_vec(gallivm, type, ~0);
}
/* 'mask' will control execution based on quad's pixel alive/killed state */
- lp_build_mask_begin(&mask, builder, type, *pmask);
+ lp_build_mask_begin(&mask, gallivm, type, *pmask);
if (!(depth_mode & EARLY_DEPTH_TEST) && !simple_shader)
lp_build_mask_check(&mask);
- lp_build_interp_soa_update_pos(interp, i);
+ lp_build_interp_soa_update_pos(interp, gallivm, i);
z = interp->pos[2];
if (depth_mode & EARLY_DEPTH_TEST) {
- lp_build_depth_stencil_test(builder,
+ lp_build_depth_stencil_test(gallivm,
&key->depth,
key->stencil,
type,
}
}
- lp_build_interp_soa_update_inputs(interp, i);
+ lp_build_interp_soa_update_inputs(interp, gallivm, i);
/* Build the actual shader */
- lp_build_tgsi_soa(builder, tokens, type, &mask,
+ lp_build_tgsi_soa(gallivm, tokens, type, &mask,
consts_ptr, NULL, /* sys values array */
interp->pos, interp->inputs,
outputs, sampler, &shader->info.base);
-
/* Alpha test */
if (key->alpha.enabled) {
int color0 = find_output_by_semantic(&shader->info.base,
LLVMValueRef alpha = LLVMBuildLoad(builder, outputs[color0][3], "alpha");
LLVMValueRef alpha_ref_value;
- alpha_ref_value = lp_jit_context_alpha_ref_value(builder, context_ptr);
- alpha_ref_value = lp_build_broadcast(builder, vec_type, alpha_ref_value);
+ alpha_ref_value = lp_jit_context_alpha_ref_value(gallivm, context_ptr);
+ alpha_ref_value = lp_build_broadcast(gallivm, vec_type, alpha_ref_value);
- lp_build_alpha_test(builder, key->alpha.func, type,
+ lp_build_alpha_test(gallivm, key->alpha.func, type,
&mask, alpha, alpha_ref_value,
(depth_mode & LATE_DEPTH_TEST) != 0);
}
z = LLVMBuildLoad(builder, outputs[pos0][2], "output.z");
}
- lp_build_depth_stencil_test(builder,
+ lp_build_depth_stencil_test(gallivm,
&key->depth,
key->stencil,
type,
* depth value, update from zs_value with the new mask value and
* write that out.
*/
- lp_build_deferred_depth_write(builder,
+ lp_build_deferred_depth_write(gallivm,
type,
zs_format_desc,
&mask,
}
if (counter)
- lp_build_occlusion_count(builder, type,
+ lp_build_occlusion_count(gallivm, type,
lp_build_mask_value(&mask), counter);
*pmask = lp_build_mask_end(&mask);
* \param dst_ptr the destination color buffer pointer
*/
static void
-generate_blend(const struct pipe_blend_state *blend,
+generate_blend(struct gallivm_state *gallivm,
+ const struct pipe_blend_state *blend,
unsigned rt,
LLVMBuilderRef builder,
struct lp_type type,
LLVMValueRef res[4];
unsigned chan;
- lp_build_context_init(&bld, builder, type);
+ lp_build_context_init(&bld, gallivm, type);
- lp_build_mask_begin(&mask_ctx, builder, type, mask);
+ lp_build_mask_begin(&mask_ctx, gallivm, type, mask);
if (do_branch)
lp_build_mask_check(&mask_ctx);
- vec_type = lp_build_vec_type(type);
+ vec_type = lp_build_vec_type(gallivm, type);
- const_ptr = lp_jit_context_blend_color(builder, context_ptr);
+ const_ptr = lp_jit_context_blend_color(gallivm, context_ptr);
const_ptr = LLVMBuildBitCast(builder, const_ptr,
LLVMPointerType(vec_type, 0), "");
/* load constant blend color and colors from the dest color buffer */
for(chan = 0; chan < 4; ++chan) {
- LLVMValueRef index = LLVMConstInt(LLVMInt32Type(), chan, 0);
+ LLVMValueRef index = lp_build_const_int32(gallivm, chan);
con[chan] = LLVMBuildLoad(builder, LLVMBuildGEP(builder, const_ptr, &index, 1, ""), "");
dst[chan] = LLVMBuildLoad(builder, LLVMBuildGEP(builder, dst_ptr, &index, 1, ""), "");
}
/* do blend */
- lp_build_blend_soa(builder, blend, type, rt, src, dst, con, res);
+ lp_build_blend_soa(gallivm, blend, type, rt, src, dst, con, res);
/* store results to color buffer */
for(chan = 0; chan < 4; ++chan) {
if(blend->rt[rt].colormask & (1 << chan)) {
- LLVMValueRef index = LLVMConstInt(LLVMInt32Type(), chan, 0);
+ LLVMValueRef index = lp_build_const_int32(gallivm, chan);
lp_build_name(res[chan], "res.%c", "rgba"[chan]);
res[chan] = lp_build_select(&bld, mask, res[chan], dst[chan]);
LLVMBuildStore(builder, res[chan], LLVMBuildGEP(builder, dst_ptr, &index, 1, ""));
* 2x2 pixels.
*/
static void
-generate_fragment(struct llvmpipe_screen *screen,
+generate_fragment(struct llvmpipe_context *lp,
struct lp_fragment_shader *shader,
struct lp_fragment_shader_variant *variant,
unsigned partial_mask)
{
+ struct gallivm_state *gallivm = lp->gallivm;
const struct lp_fragment_shader_variant_key *key = &variant->key;
struct lp_shader_input inputs[PIPE_MAX_SHADER_INPUTS];
char func_name[256];
LLVMTypeRef blend_vec_type;
LLVMTypeRef arg_types[11];
LLVMTypeRef func_type;
+ LLVMTypeRef int32_type = LLVMInt32TypeInContext(gallivm->context);
+ LLVMTypeRef int8_type = LLVMInt8TypeInContext(gallivm->context);
LLVMValueRef context_ptr;
LLVMValueRef x;
LLVMValueRef y;
* lp_jit.h's lp_jit_frag_func function pointer type, and vice-versa.
*/
- fs_elem_type = lp_build_elem_type(fs_type);
- fs_int_vec_type = lp_build_int_vec_type(fs_type);
+ fs_elem_type = lp_build_elem_type(gallivm, fs_type);
+ fs_int_vec_type = lp_build_int_vec_type(gallivm, fs_type);
- blend_vec_type = lp_build_vec_type(blend_type);
+ blend_vec_type = lp_build_vec_type(gallivm, blend_type);
util_snprintf(func_name, sizeof(func_name), "fs%u_variant%u_%s",
shader->no, variant->no, partial_mask ? "partial" : "whole");
- arg_types[0] = screen->context_ptr_type; /* context */
- arg_types[1] = LLVMInt32Type(); /* x */
- arg_types[2] = LLVMInt32Type(); /* y */
- arg_types[3] = LLVMInt32Type(); /* facing */
+ arg_types[0] = lp_jit_get_context_type(lp); /* context */
+ arg_types[1] = int32_type; /* x */
+ arg_types[2] = int32_type; /* y */
+ arg_types[3] = int32_type; /* facing */
arg_types[4] = LLVMPointerType(fs_elem_type, 0); /* a0 */
arg_types[5] = LLVMPointerType(fs_elem_type, 0); /* dadx */
arg_types[6] = LLVMPointerType(fs_elem_type, 0); /* dady */
arg_types[7] = LLVMPointerType(LLVMPointerType(blend_vec_type, 0), 0); /* color */
- arg_types[8] = LLVMPointerType(LLVMInt8Type(), 0); /* depth */
- arg_types[9] = LLVMInt32Type(); /* mask_input */
- arg_types[10] = LLVMPointerType(LLVMInt32Type(), 0);/* counter */
+ arg_types[8] = LLVMPointerType(int8_type, 0); /* depth */
+ arg_types[9] = int32_type; /* mask_input */
+ arg_types[10] = LLVMPointerType(int32_type, 0); /* counter */
- func_type = LLVMFunctionType(LLVMVoidType(), arg_types, Elements(arg_types), 0);
+ func_type = LLVMFunctionType(LLVMVoidTypeInContext(gallivm->context),
+ arg_types, Elements(arg_types), 0);
- function = LLVMAddFunction(screen->module, func_name, func_type);
+ function = LLVMAddFunction(gallivm->module, func_name, func_type);
LLVMSetFunctionCallConv(function, LLVMCCallConv);
variant->function[partial_mask] = function;
* Function body
*/
- block = LLVMAppendBasicBlock(function, "entry");
- builder = LLVMCreateBuilder();
+ block = LLVMAppendBasicBlockInContext(gallivm->context, function, "entry");
+ builder = gallivm->builder;
+ assert(builder);
LLVMPositionBuilderAtEnd(builder, block);
/*
* already included in the shader key.
*/
lp_build_interp_soa_init(&interp,
+ gallivm,
shader->info.base.num_inputs,
inputs,
builder, fs_type,
zs_format_desc = util_format_description(key->zsbuf_format);
for(i = 0; i < num_fs; ++i) {
- LLVMValueRef depth_offset = LLVMConstInt(LLVMInt32Type(),
+ LLVMValueRef depth_offset = LLVMConstInt(int32_type,
i*fs_type.length*zs_format_desc->block.bits/8,
0);
LLVMValueRef out_color[PIPE_MAX_COLOR_BUFS][NUM_CHANNELS];
depth_ptr_i = LLVMBuildGEP(builder, depth_ptr, &depth_offset, 1, "");
- generate_fs(shader, key,
+ generate_fs(gallivm,
+ shader, key,
builder,
fs_type,
context_ptr,
*/
for(cbuf = 0; cbuf < key->nr_cbufs; cbuf++) {
LLVMValueRef color_ptr;
- LLVMValueRef index = LLVMConstInt(LLVMInt32Type(), cbuf, 0);
+ LLVMValueRef index = lp_build_const_int32(gallivm, cbuf);
LLVMValueRef blend_in_color[NUM_CHANNELS];
unsigned rt;
LLVMBuildLoad(builder, fs_out_color[cbuf][chan][i], "fs_color_vals");
}
- lp_build_conv(builder, fs_type, blend_type,
+ lp_build_conv(gallivm, fs_type, blend_type,
fs_color_vals,
num_fs,
&blend_in_color[chan], 1);
}
if (partial_mask || !variant->opaque) {
- lp_build_conv_mask(builder, fs_type, blend_type,
+ lp_build_conv_mask(lp->gallivm, fs_type, blend_type,
fs_mask, num_fs,
&blend_mask, 1);
} else {
- blend_mask = lp_build_const_int_vec(blend_type, ~0);
+ blend_mask = lp_build_const_int_vec(lp->gallivm, blend_type, ~0);
}
color_ptr = LLVMBuildLoad(builder,
!key->alpha.enabled &&
!shader->info.base.uses_kill);
- generate_blend(&key->blend,
+ generate_blend(lp->gallivm,
+ &key->blend,
rt,
builder,
blend_type,
LLVMBuildRetVoid(builder);
- LLVMDisposeBuilder(builder);
-
-
/* Verify the LLVM IR. If invalid, dump and abort */
#ifdef DEBUG
if(LLVMVerifyFunction(function, LLVMPrintMessageAction)) {
#endif
/* Apply optimizations to LLVM IR */
- LLVMRunFunctionPassManager(screen->pass, function);
+ LLVMRunFunctionPassManager(gallivm->passmgr, function);
if ((gallivm_debug & GALLIVM_DEBUG_IR) || (LP_DEBUG & DEBUG_FS)) {
/* Print the LLVM IR to stderr */
/* Dump byte code to a file */
if (0) {
- LLVMWriteBitcodeToFile(lp_build_module, "llvmpipe.bc");
+ LLVMWriteBitcodeToFile(gallivm->module, "llvmpipe.bc");
}
/*
* Translate the LLVM IR into machine code.
*/
{
- void *f = LLVMGetPointerToGlobal(screen->engine, function);
+ void *f = LLVMGetPointerToGlobal(gallivm->engine, function);
variant->jit_function[partial_mask] = (lp_jit_frag_func)pointer_to_func(f);
debug_printf("\n");
}
+
+/**
+ * Generate a new fragment shader variant from the shader code and
+ * other state indicated by the key.
+ */
static struct lp_fragment_shader_variant *
-generate_variant(struct llvmpipe_screen *screen,
+generate_variant(struct llvmpipe_context *lp,
struct lp_fragment_shader *shader,
const struct lp_fragment_shader_variant_key *key)
{
lp_debug_fs_variant(variant);
}
- generate_fragment(screen, shader, variant, RAST_EDGE_TEST);
+ generate_fragment(lp, shader, variant, RAST_EDGE_TEST);
if (variant->opaque) {
/* Specialized shader, which doesn't need to read the color buffer. */
- generate_fragment(screen, shader, variant, RAST_WHOLE);
+ generate_fragment(lp, shader, variant, RAST_WHOLE);
} else {
variant->jit_function[RAST_WHOLE] = variant->jit_function[RAST_EDGE_TEST];
}
if (LP_DEBUG & DEBUG_TGSI) {
unsigned attrib;
- debug_printf("llvmpipe: Create fragment shader #%u %p:\n", shader->no, (void *) shader);
+ debug_printf("llvmpipe: Create fragment shader #%u %p:\n",
+ shader->no, (void *) shader);
tgsi_dump(templ->tokens, 0);
debug_printf("usage masks:\n");
for (attrib = 0; attrib < shader->info.base.num_inputs; ++attrib) {
llvmpipe->dirty |= LP_NEW_FS;
}
-static void
-remove_shader_variant(struct llvmpipe_context *lp,
- struct lp_fragment_shader_variant *variant)
+
+/**
+ * Remove shader variant from two lists: the shader's variant list
+ * and the context's variant list.
+ */
+void
+llvmpipe_remove_shader_variant(struct llvmpipe_context *lp,
+ struct lp_fragment_shader_variant *variant)
{
- struct llvmpipe_screen *screen = llvmpipe_screen(lp->pipe.screen);
unsigned i;
if (gallivm_debug & GALLIVM_DEBUG_IR) {
- debug_printf("llvmpipe: del fs #%u var #%u v created #%u v cached #%u v total cached #%u\n",
- variant->shader->no, variant->no, variant->shader->variants_created,
- variant->shader->variants_cached, lp->nr_fs_variants);
+ debug_printf("llvmpipe: del fs #%u var #%u v created #%u v cached"
+ " #%u v total cached #%u\n",
+ variant->shader->no,
+ variant->no,
+ variant->shader->variants_created,
+ variant->shader->variants_cached,
+ lp->nr_fs_variants);
}
+
+ /* free all the variant's JIT'd functions */
for (i = 0; i < Elements(variant->function); i++) {
if (variant->function[i]) {
if (variant->jit_function[i])
- LLVMFreeMachineCodeForFunction(screen->engine,
+ LLVMFreeMachineCodeForFunction(lp->gallivm->engine,
variant->function[i]);
LLVMDeleteFunction(variant->function[i]);
}
}
+
+ /* remove from shader's list */
remove_from_list(&variant->list_item_local);
variant->shader->variants_cached--;
+
+ /* remove from context's list */
remove_from_list(&variant->list_item_global);
lp->nr_fs_variants--;
+
FREE(variant);
}
+
static void
llvmpipe_delete_fs_state(struct pipe_context *pipe, void *fs)
{
struct lp_fs_variant_list_item *li;
assert(fs != llvmpipe->fs);
- (void) llvmpipe;
/*
* XXX: we need to flush the context until we have some sort of reference
* counting in fragment shaders as they may still be binned
* Flushing alone might not sufficient we need to wait on it too.
*/
-
llvmpipe_finish(pipe, __FUNCTION__);
+ /* Delete all the variants */
li = first_elem(&shader->variants);
while(!at_end(&shader->variants, li)) {
struct lp_fs_variant_list_item *next = next_elem(li);
- remove_shader_variant(llvmpipe, li->base);
+ llvmpipe_remove_shader_variant(llvmpipe, li->base);
li = next;
}
+ /* Delete draw module's data */
draw_delete_fragment_shader(llvmpipe->draw, shader->draw_data);
assert(shader->variants_cached == 0);
}
}
+
+
/**
- * Update fragment state. This is called just prior to drawing
+ * Update fragment shader state. This is called just prior to drawing
* something when some fragment-related state has changed.
*/
void
llvmpipe_update_fs(struct llvmpipe_context *lp)
{
- struct llvmpipe_screen *screen = llvmpipe_screen(lp->pipe.screen);
struct lp_fragment_shader *shader = lp->fs;
struct lp_fragment_shader_variant_key key;
struct lp_fragment_shader_variant *variant = NULL;
make_variant_key(lp, shader, &key);
+ /* Search the variants for one which matches the key */
li = first_elem(&shader->variants);
while(!at_end(&shader->variants, li)) {
if(memcmp(&li->base->key, &key, shader->variant_key_size) == 0) {
}
if (variant) {
+ /* Move this variant to the head of the list to implement LRU
+ * deletion of shader's when we have too many.
+ */
move_to_head(&lp->fs_variants_list, &variant->list_item_global);
}
else {
- int64_t t0, t1;
- int64_t dt;
+ /* variant not found, create it now */
+ int64_t t0, t1, dt;
unsigned i;
+
+ /* First, check if we've exceeded the max number of shader variants.
+ * If so, free 25% of them (the least recently used ones).
+ */
if (lp->nr_fs_variants >= LP_MAX_SHADER_VARIANTS) {
struct pipe_context *pipe = &lp->pipe;
/*
- * XXX: we need to flush the context until we have some sort of reference
- * counting in fragment shaders as they may still be binned
+ * XXX: we need to flush the context until we have some sort of
+ * reference counting in fragment shaders as they may still be binned
* Flushing alone might not be sufficient we need to wait on it too.
*/
llvmpipe_finish(pipe, __FUNCTION__);
for (i = 0; i < LP_MAX_SHADER_VARIANTS / 4; i++) {
- struct lp_fs_variant_list_item *item = last_elem(&lp->fs_variants_list);
- remove_shader_variant(lp, item->base);
+ struct lp_fs_variant_list_item *item;
+ item = last_elem(&lp->fs_variants_list);
+ llvmpipe_remove_shader_variant(lp, item->base);
}
}
- t0 = os_time_get();
-
- variant = generate_variant(screen, shader, &key);
+ /*
+ * Generate the new variant.
+ */
+ t0 = os_time_get();
+ variant = generate_variant(lp, shader, &key);
t1 = os_time_get();
dt = t1 - t0;
LP_COUNT_ADD(llvm_compile_time, dt);
LP_COUNT_ADD(nr_llvm_compiles, 2); /* emit vs. omit in/out test */
+ llvmpipe_variant_count++;
+
+ /* Put the new variant into the list */
if (variant) {
insert_at_head(&shader->variants, &variant->list_item_local);
insert_at_head(&lp->fs_variants_list, &variant->list_item_global);
}
}
+ /* Bind this variant */
lp_setup_set_fs_variant(lp->setup, variant);
}
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