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Diffstat (limited to 'src/gallium/drivers/llvmpipe/lp_state_fs.c')
-rw-r--r--src/gallium/drivers/llvmpipe/lp_state_fs.c167
1 files changed, 104 insertions, 63 deletions
diff --git a/src/gallium/drivers/llvmpipe/lp_state_fs.c b/src/gallium/drivers/llvmpipe/lp_state_fs.c
index c4b79dd415..7bbf348e0b 100644
--- a/src/gallium/drivers/llvmpipe/lp_state_fs.c
+++ b/src/gallium/drivers/llvmpipe/lp_state_fs.c
@@ -40,7 +40,7 @@
* - depth/stencil test (stencil TBI)
* - blending
*
- * This file has only the glue to assembly the fragment pipeline. The actual
+ * This file has only the glue to assemble the fragment pipeline. The actual
* plumbing of converting Gallium state into LLVM IR is done elsewhere, in the
* lp_bld_*.[ch] files, and in a complete generic and reusable way. Here we
* muster the LLVM JIT execution engine to create a function that follows an
@@ -95,6 +95,9 @@
#include "lp_tex_sample.h"
+#include <llvm-c/Analysis.h>
+
+
static const unsigned char quad_offset_x[4] = {0, 1, 0, 1};
static const unsigned char quad_offset_y[4] = {0, 0, 1, 1};
@@ -135,20 +138,22 @@ generate_pos0(LLVMBuilderRef builder,
/**
- * Generate the depth test.
+ * Generate the depth /stencil test code.
*/
static void
-generate_depth(LLVMBuilderRef builder,
- const struct lp_fragment_shader_variant_key *key,
- struct lp_type src_type,
- struct lp_build_mask_context *mask,
- LLVMValueRef src,
- LLVMValueRef dst_ptr)
+generate_depth_stencil(LLVMBuilderRef builder,
+ const struct lp_fragment_shader_variant_key *key,
+ struct lp_type src_type,
+ struct lp_build_mask_context *mask,
+ LLVMValueRef stencil_refs[2],
+ LLVMValueRef src,
+ LLVMValueRef dst_ptr,
+ LLVMValueRef facing)
{
const struct util_format_description *format_desc;
struct lp_type dst_type;
- if(!key->depth.enabled)
+ if (!key->depth.enabled && !key->stencil[0].enabled && !key->stencil[1].enabled)
return;
format_desc = util_format_description(key->zsbuf_format);
@@ -175,19 +180,22 @@ generate_depth(LLVMBuilderRef builder,
assert(dst_type.width == src_type.width);
assert(dst_type.length == src_type.length);
+ /* Convert fragment Z from float to integer */
lp_build_conv(builder, src_type, dst_type, &src, 1, &src, 1);
dst_ptr = LLVMBuildBitCast(builder,
dst_ptr,
LLVMPointerType(lp_build_vec_type(dst_type), 0), "");
-
- lp_build_depth_test(builder,
- &key->depth,
- dst_type,
- format_desc,
- mask,
- src,
- dst_ptr);
+ lp_build_depth_stencil_test(builder,
+ &key->depth,
+ key->stencil,
+ dst_type,
+ format_desc,
+ mask,
+ stencil_refs,
+ src,
+ dst_ptr,
+ facing);
}
@@ -249,7 +257,7 @@ generate_tri_edge_mask(LLVMBuilderRef builder,
LLVMConstInt(LLVMInt32Type(), INT_MIN, 0),
"");
- in_out_mask = lp_build_int_const_scalar(i32_type, ~0);
+ in_out_mask = lp_build_const_int_vec(i32_type, ~0);
lp_build_flow_scope_declare(flow, &in_out_mask);
@@ -364,7 +372,7 @@ build_int32_vec_const(int value)
i32_type.norm = FALSE; /* values are not normalized */
i32_type.width = 32; /* 32-bit int values */
i32_type.length = 4; /* 4 elements per vector */
- return lp_build_int_const_scalar(i32_type, value);
+ return lp_build_const_int_vec(i32_type, value);
}
@@ -387,6 +395,7 @@ generate_fs(struct llvmpipe_context *lp,
LLVMValueRef *pmask,
LLVMValueRef (*color)[4],
LLVMValueRef depth_ptr,
+ LLVMValueRef facing,
unsigned do_tri_test,
LLVMValueRef c0,
LLVMValueRef c1,
@@ -402,15 +411,19 @@ generate_fs(struct llvmpipe_context *lp,
LLVMValueRef consts_ptr;
LLVMValueRef outputs[PIPE_MAX_SHADER_OUTPUTS][NUM_CHANNELS];
LLVMValueRef z = interp->pos[2];
+ LLVMValueRef stencil_refs[2];
struct lp_build_flow_context *flow;
struct lp_build_mask_context mask;
- boolean early_depth_test;
+ boolean early_depth_stencil_test;
unsigned attrib;
unsigned chan;
unsigned cbuf;
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);
+
elem_type = lp_build_elem_type(type);
vec_type = lp_build_vec_type(type);
int_vec_type = lp_build_int_vec_type(type);
@@ -450,16 +463,16 @@ generate_fs(struct llvmpipe_context *lp,
lp_build_mask_update(&mask, smask);
}
- early_depth_test =
- key->depth.enabled &&
+ early_depth_stencil_test =
+ (key->depth.enabled || key->stencil[0].enabled) &&
!key->alpha.enabled &&
!shader->info.uses_kill &&
!shader->info.writes_z;
- if(early_depth_test)
- generate_depth(builder, key,
- type, &mask,
- z, depth_ptr);
+ if (early_depth_stencil_test)
+ generate_depth_stencil(builder, key,
+ type, &mask,
+ stencil_refs, z, depth_ptr, facing);
lp_build_tgsi_soa(builder, tokens, type, &mask,
consts_ptr, interp->pos, interp->inputs,
@@ -503,10 +516,10 @@ generate_fs(struct llvmpipe_context *lp,
}
}
- if(!early_depth_test)
- generate_depth(builder, key,
- type, &mask,
- z, depth_ptr);
+ if (!early_depth_stencil_test)
+ generate_depth_stencil(builder, key,
+ type, &mask,
+ stencil_refs, z, depth_ptr, facing);
lp_build_mask_end(&mask);
@@ -582,6 +595,20 @@ generate_blend(const struct pipe_blend_state *blend,
}
+/** casting function to avoid compiler warnings */
+static lp_jit_frag_func
+cast_voidptr_to_lp_jit_frag_func(void *p)
+{
+ union {
+ void *v;
+ lp_jit_frag_func f;
+ } tmp;
+ assert(sizeof(tmp.v) == sizeof(tmp.f));
+ tmp.v = p;
+ return tmp.f;
+}
+
+
/**
* Generate the runtime callable function for the whole fragment pipeline.
* Note that the function which we generate operates on a block of 16
@@ -603,7 +630,7 @@ generate_fragment(struct llvmpipe_context *lp,
LLVMTypeRef fs_int_vec_type;
LLVMTypeRef blend_vec_type;
LLVMTypeRef blend_int_vec_type;
- LLVMTypeRef arg_types[14];
+ LLVMTypeRef arg_types[15];
LLVMTypeRef func_type;
LLVMTypeRef int32_vec4_type = lp_build_int32_vec4_type();
LLVMValueRef context_ptr;
@@ -626,6 +653,7 @@ generate_fragment(struct llvmpipe_context *lp,
LLVMValueRef blend_mask;
LLVMValueRef blend_in_color[NUM_CHANNELS];
LLVMValueRef function;
+ LLVMValueRef facing;
unsigned num_fs;
unsigned i;
unsigned chan;
@@ -665,20 +693,21 @@ generate_fragment(struct llvmpipe_context *lp,
arg_types[0] = screen->context_ptr_type; /* context */
arg_types[1] = LLVMInt32Type(); /* x */
arg_types[2] = LLVMInt32Type(); /* y */
- arg_types[3] = LLVMPointerType(fs_elem_type, 0); /* a0 */
- arg_types[4] = LLVMPointerType(fs_elem_type, 0); /* dadx */
- arg_types[5] = LLVMPointerType(fs_elem_type, 0); /* dady */
- arg_types[6] = LLVMPointerType(LLVMPointerType(blend_vec_type, 0), 0); /* color */
- arg_types[7] = LLVMPointerType(fs_int_vec_type, 0); /* depth */
- arg_types[8] = LLVMInt32Type(); /* c0 */
- arg_types[9] = LLVMInt32Type(); /* c1 */
- arg_types[10] = LLVMInt32Type(); /* c2 */
+ arg_types[3] = LLVMFloatType(); /* 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(fs_int_vec_type, 0); /* depth */
+ arg_types[9] = LLVMInt32Type(); /* c0 */
+ arg_types[10] = LLVMInt32Type(); /* c1 */
+ arg_types[11] = LLVMInt32Type(); /* c2 */
/* Note: the step arrays are built as int32[16] but we interpret
* them here as int32_vec4[4].
*/
- arg_types[11] = LLVMPointerType(int32_vec4_type, 0);/* step0 */
- arg_types[12] = LLVMPointerType(int32_vec4_type, 0);/* step1 */
- arg_types[13] = LLVMPointerType(int32_vec4_type, 0);/* step2 */
+ arg_types[12] = LLVMPointerType(int32_vec4_type, 0);/* step0 */
+ arg_types[13] = LLVMPointerType(int32_vec4_type, 0);/* step1 */
+ arg_types[14] = LLVMPointerType(int32_vec4_type, 0);/* step2 */
func_type = LLVMFunctionType(LLVMVoidType(), arg_types, Elements(arg_types), 0);
@@ -698,17 +727,18 @@ generate_fragment(struct llvmpipe_context *lp,
context_ptr = LLVMGetParam(function, 0);
x = LLVMGetParam(function, 1);
y = LLVMGetParam(function, 2);
- a0_ptr = LLVMGetParam(function, 3);
- dadx_ptr = LLVMGetParam(function, 4);
- dady_ptr = LLVMGetParam(function, 5);
- color_ptr_ptr = LLVMGetParam(function, 6);
- depth_ptr = LLVMGetParam(function, 7);
- c0 = LLVMGetParam(function, 8);
- c1 = LLVMGetParam(function, 9);
- c2 = LLVMGetParam(function, 10);
- step0_ptr = LLVMGetParam(function, 11);
- step1_ptr = LLVMGetParam(function, 12);
- step2_ptr = LLVMGetParam(function, 13);
+ facing = LLVMGetParam(function, 3);
+ a0_ptr = LLVMGetParam(function, 4);
+ dadx_ptr = LLVMGetParam(function, 5);
+ dady_ptr = LLVMGetParam(function, 6);
+ color_ptr_ptr = LLVMGetParam(function, 7);
+ depth_ptr = LLVMGetParam(function, 8);
+ c0 = LLVMGetParam(function, 9);
+ c1 = LLVMGetParam(function, 10);
+ c2 = LLVMGetParam(function, 11);
+ step0_ptr = LLVMGetParam(function, 12);
+ step1_ptr = LLVMGetParam(function, 13);
+ step2_ptr = LLVMGetParam(function, 14);
lp_build_name(context_ptr, "context");
lp_build_name(x, "x");
@@ -767,6 +797,7 @@ generate_fragment(struct llvmpipe_context *lp,
&fs_mask[i], /* output */
out_color,
depth_ptr_i,
+ facing,
do_tri_test,
c0, c1, c2,
step0_ptr, step1_ptr, step2_ptr);
@@ -842,10 +873,14 @@ generate_fragment(struct llvmpipe_context *lp,
/*
* Translate the LLVM IR into machine code.
*/
- variant->jit_function[do_tri_test] = (lp_jit_frag_func)LLVMGetPointerToGlobal(screen->engine, function);
+ {
+ void *f = LLVMGetPointerToGlobal(screen->engine, function);
+
+ variant->jit_function[do_tri_test] = cast_voidptr_to_lp_jit_frag_func(f);
- if (LP_DEBUG & DEBUG_ASM)
- lp_disassemble(variant->jit_function[do_tri_test]);
+ if (LP_DEBUG & DEBUG_ASM)
+ lp_disassemble(f);
+ }
}
@@ -1051,10 +1086,15 @@ make_variant_key(struct llvmpipe_context *lp,
memset(key, 0, sizeof *key);
- if(lp->framebuffer.zsbuf &&
- lp->depth_stencil->depth.enabled) {
- key->zsbuf_format = lp->framebuffer.zsbuf->format;
- memcpy(&key->depth, &lp->depth_stencil->depth, sizeof key->depth);
+ if (lp->framebuffer.zsbuf) {
+ if (lp->depth_stencil->depth.enabled) {
+ key->zsbuf_format = lp->framebuffer.zsbuf->format;
+ memcpy(&key->depth, &lp->depth_stencil->depth, sizeof key->depth);
+ }
+ if (lp->depth_stencil->stencil[0].enabled) {
+ key->zsbuf_format = lp->framebuffer.zsbuf->format;
+ memcpy(&key->stencil, &lp->depth_stencil->stencil, sizeof key->stencil);
+ }
}
key->alpha.enabled = lp->depth_stencil->alpha.enabled;
@@ -1091,7 +1131,7 @@ make_variant_key(struct llvmpipe_context *lp,
for(i = 0; i < PIPE_MAX_SAMPLERS; ++i)
if(shader->info.file_mask[TGSI_FILE_SAMPLER] & (1 << i))
- lp_sampler_static_state(&key->sampler[i], lp->texture[i], lp->sampler[i]);
+ lp_sampler_static_state(&key->sampler[i], lp->fragment_sampler_views[i]->texture, lp->sampler[i]);
}
@@ -1137,6 +1177,7 @@ llvmpipe_update_fs(struct llvmpipe_context *lp)
opaque = !key.blend.logicop_enable &&
!key.blend.rt[0].blend_enable &&
key.blend.rt[0].colormask == 0xf &&
+ !key.stencil[0].enabled &&
!key.alpha.enabled &&
!key.depth.enabled &&
!key.scissor &&
@@ -1144,7 +1185,7 @@ llvmpipe_update_fs(struct llvmpipe_context *lp)
? TRUE : FALSE;
lp_setup_set_fs_functions(lp->setup,
- shader->current->jit_function[0],
- shader->current->jit_function[1],
+ shader->current->jit_function[RAST_WHOLE],
+ shader->current->jit_function[RAST_EDGE_TEST],
opaque);
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-06-06 10:15:36 +0000