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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.c238
1 files changed, 98 insertions, 140 deletions
diff --git a/src/gallium/drivers/llvmpipe/lp_state_fs.c b/src/gallium/drivers/llvmpipe/lp_state_fs.c
index 94170bd716..9faed5a0b1 100644
--- a/src/gallium/drivers/llvmpipe/lp_state_fs.c
+++ b/src/gallium/drivers/llvmpipe/lp_state_fs.c
@@ -85,6 +85,7 @@
#include "lp_context.h"
#include "lp_state.h"
#include "lp_quad.h"
+#include "lp_tex_sample.h"
static const unsigned char quad_offset_x[4] = {0, 1, 0, 1};
@@ -130,21 +131,20 @@ generate_pos0(LLVMBuilderRef builder,
* Generate the depth test.
*/
static void
-generate_depth(struct llvmpipe_context *lp,
- LLVMBuilderRef builder,
- const struct pipe_depth_state *state,
- union lp_type src_type,
+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)
{
const struct util_format_description *format_desc;
- union lp_type dst_type;
+ struct lp_type dst_type;
- if(!lp->framebuffer.zsbuf)
+ if(!key->depth.enabled)
return;
- format_desc = util_format_description(lp->framebuffer.zsbuf->format);
+ format_desc = util_format_description(key->zsbuf_format);
assert(format_desc);
/* Pick the depth type. */
@@ -164,7 +164,7 @@ generate_depth(struct llvmpipe_context *lp,
#endif
lp_build_depth_test(builder,
- state,
+ &key->depth,
dst_type,
format_desc,
mask,
@@ -173,107 +173,6 @@ generate_depth(struct llvmpipe_context *lp,
}
-struct build_fetch_texel_context
-{
- LLVMValueRef context_ptr;
-
- LLVMValueRef samplers_ptr;
-
- /** Coords/texels store */
- LLVMValueRef store_ptr;
-};
-
-
-void PIPE_CDECL
-lp_fetch_texel_soa( struct tgsi_sampler **samplers,
- uint32_t unit,
- float *store )
-{
- struct tgsi_sampler *sampler = samplers[unit];
-
-#if 0
- uint j;
-
- debug_printf("%s sampler: %p (%p) store: %p\n",
- __FUNCTION__,
- sampler, *sampler,
- store );
-
- debug_printf("lodbias %f\n", store[12]);
-
- for (j = 0; j < 4; j++)
- debug_printf("sample %d texcoord %f %f\n",
- j,
- store[0+j],
- store[4+j]);
-#endif
-
- {
- float rgba[NUM_CHANNELS][QUAD_SIZE];
- sampler->get_samples(sampler,
- &store[0],
- &store[4],
- &store[8],
- 0.0f, /*store[12], lodbias */
- rgba);
- memcpy(store, rgba, sizeof rgba);
- }
-
-#if 0
- for (j = 0; j < 4; j++)
- debug_printf("sample %d result %f %f %f %f\n",
- j,
- store[0+j],
- store[4+j],
- store[8+j],
- store[12+j]);
-#endif
-}
-
-
-static void
-emit_fetch_texel( LLVMBuilderRef builder,
- void *context,
- unsigned unit,
- unsigned num_coords,
- const LLVMValueRef *coords,
- LLVMValueRef lodbias,
- LLVMValueRef *texel)
-{
- struct build_fetch_texel_context *bld = context;
- LLVMTypeRef vec_type = LLVMTypeOf(coords[0]);
- LLVMValueRef args[3];
- unsigned i;
-
- if(!bld->samplers_ptr)
- bld->samplers_ptr = lp_jit_context_samplers(builder, bld->context_ptr);
-
- if(!bld->store_ptr)
- bld->store_ptr = LLVMBuildArrayAlloca(builder,
- vec_type,
- LLVMConstInt(LLVMInt32Type(), 4, 0),
- "texel_store");
-
- for (i = 0; i < num_coords; i++) {
- LLVMValueRef index = LLVMConstInt(LLVMInt32Type(), i, 0);
- LLVMValueRef coord_ptr = LLVMBuildGEP(builder, bld->store_ptr, &index, 1, "");
- LLVMBuildStore(builder, coords[i], coord_ptr);
- }
-
- args[0] = bld->samplers_ptr;
- args[1] = LLVMConstInt(LLVMInt32Type(), unit, 0);
- args[2] = bld->store_ptr;
-
- lp_build_intrinsic(builder, "fetch_texel", LLVMVoidType(), args, 3);
-
- for (i = 0; i < NUM_CHANNELS; ++i) {
- LLVMValueRef index = LLVMConstInt(LLVMInt32Type(), i, 0);
- LLVMValueRef texel_ptr = LLVMBuildGEP(builder, bld->store_ptr, &index, 1, "");
- texel[i] = LLVMBuildLoad(builder, texel_ptr, "");
- }
-}
-
-
/**
* Generate the fragment shader, depth/stencil test, and alpha tests.
*/
@@ -282,11 +181,11 @@ generate_fs(struct llvmpipe_context *lp,
struct lp_fragment_shader *shader,
const struct lp_fragment_shader_variant_key *key,
LLVMBuilderRef builder,
- union lp_type type,
+ struct lp_type type,
LLVMValueRef context_ptr,
unsigned i,
const struct lp_build_interp_soa_context *interp,
- struct build_fetch_texel_context *sampler,
+ struct lp_build_sampler_soa *sampler,
LLVMValueRef *pmask,
LLVMValueRef *color,
LLVMValueRef depth_ptr)
@@ -298,6 +197,7 @@ generate_fs(struct llvmpipe_context *lp,
LLVMValueRef consts_ptr;
LLVMValueRef outputs[PIPE_MAX_SHADER_OUTPUTS][NUM_CHANNELS];
LLVMValueRef z = interp->pos[2];
+ struct lp_build_flow_context *flow;
struct lp_build_mask_context mask;
boolean early_depth_test;
unsigned attrib;
@@ -309,25 +209,35 @@ generate_fs(struct llvmpipe_context *lp,
consts_ptr = lp_jit_context_constants(builder, context_ptr);
- lp_build_mask_begin(&mask, builder, type, *pmask);
+ flow = lp_build_flow_create(builder);
+
+ memset(outputs, 0, sizeof outputs);
+
+ lp_build_flow_scope_begin(flow);
+
+ /* Declare the color and z variables */
+ for(chan = 0; chan < NUM_CHANNELS; ++chan) {
+ color[chan] = LLVMGetUndef(vec_type);
+ lp_build_flow_scope_declare(flow, &color[chan]);
+ }
+ lp_build_flow_scope_declare(flow, &z);
+
+ lp_build_mask_begin(&mask, flow, type, *pmask);
early_depth_test =
- lp->depth_stencil->depth.enabled &&
- lp->framebuffer.zsbuf &&
- !lp->depth_stencil->alpha.enabled &&
- !lp->fs->info.uses_kill &&
- !lp->fs->info.writes_z;
+ key->depth.enabled &&
+ !key->alpha.enabled &&
+ !shader->info.uses_kill &&
+ !shader->info.writes_z;
if(early_depth_test)
- generate_depth(lp, builder, &key->depth,
+ generate_depth(builder, key,
type, &mask,
z, depth_ptr);
- memset(outputs, 0, sizeof outputs);
-
lp_build_tgsi_soa(builder, tokens, type, &mask,
consts_ptr, interp->pos, interp->inputs,
- outputs, emit_fetch_texel, sampler);
+ outputs, sampler);
for (attrib = 0; attrib < shader->info.num_outputs; ++attrib) {
for(chan = 0; chan < NUM_CHANNELS; ++chan) {
@@ -368,12 +278,16 @@ generate_fs(struct llvmpipe_context *lp,
}
if(!early_depth_test)
- generate_depth(lp, builder, &key->depth,
+ generate_depth(builder, key,
type, &mask,
z, depth_ptr);
lp_build_mask_end(&mask);
+ lp_build_flow_scope_end(flow);
+
+ lp_build_flow_destroy(flow);
+
*pmask = mask.value;
}
@@ -385,13 +299,15 @@ generate_fs(struct llvmpipe_context *lp,
static void
generate_blend(const struct pipe_blend_state *blend,
LLVMBuilderRef builder,
- union lp_type type,
+ struct lp_type type,
LLVMValueRef context_ptr,
LLVMValueRef mask,
LLVMValueRef *src,
LLVMValueRef dst_ptr)
{
struct lp_build_context bld;
+ struct lp_build_flow_context *flow;
+ struct lp_build_mask_context mask_ctx;
LLVMTypeRef vec_type;
LLVMTypeRef int_vec_type;
LLVMValueRef const_ptr;
@@ -400,11 +316,14 @@ generate_blend(const struct pipe_blend_state *blend,
LLVMValueRef res[4];
unsigned chan;
+ lp_build_context_init(&bld, builder, type);
+
+ flow = lp_build_flow_create(builder);
+ lp_build_mask_begin(&mask_ctx, flow, type, mask);
+
vec_type = lp_build_vec_type(type);
int_vec_type = lp_build_int_vec_type(type);
- lp_build_context_init(&bld, builder, type);
-
const_ptr = lp_jit_context_blend_color(builder, context_ptr);
const_ptr = LLVMBuildBitCast(builder, const_ptr,
LLVMPointerType(vec_type, 0), "");
@@ -422,11 +341,16 @@ generate_blend(const struct pipe_blend_state *blend,
lp_build_blend_soa(builder, blend, type, src, dst, con, res);
for(chan = 0; chan < 4; ++chan) {
- LLVMValueRef index = LLVMConstInt(LLVMInt32Type(), chan, 0);
- 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, ""));
+ if(blend->colormask & (1 << chan)) {
+ LLVMValueRef index = LLVMConstInt(LLVMInt32Type(), chan, 0);
+ 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, ""));
+ }
}
+
+ lp_build_mask_end(&mask_ctx);
+ lp_build_flow_destroy(flow);
}
@@ -440,8 +364,8 @@ generate_fragment(struct llvmpipe_context *lp,
{
struct llvmpipe_screen *screen = llvmpipe_screen(lp->pipe.screen);
struct lp_fragment_shader_variant *variant;
- union lp_type fs_type;
- union lp_type blend_type;
+ struct lp_type fs_type;
+ struct lp_type blend_type;
LLVMTypeRef fs_elem_type;
LLVMTypeRef fs_vec_type;
LLVMTypeRef fs_int_vec_type;
@@ -462,7 +386,7 @@ generate_fragment(struct llvmpipe_context *lp,
LLVMBuilderRef builder;
LLVMValueRef x0;
LLVMValueRef y0;
- struct build_fetch_texel_context sampler;
+ struct lp_build_sampler_soa *sampler;
struct lp_build_interp_soa_context interp;
LLVMValueRef fs_mask[LP_MAX_VECTOR_LENGTH];
LLVMValueRef fs_out_color[NUM_CHANNELS][LP_MAX_VECTOR_LENGTH];
@@ -507,7 +431,7 @@ generate_fragment(struct llvmpipe_context *lp,
/* TODO: actually pick these based on the fs and color buffer
* characteristics. */
- fs_type.value = 0;
+ memset(&fs_type, 0, sizeof fs_type);
fs_type.floating = TRUE; /* floating point values */
fs_type.sign = TRUE; /* values are signed */
fs_type.norm = FALSE; /* values are not limited to [0,1] or [-1,1] */
@@ -515,7 +439,7 @@ generate_fragment(struct llvmpipe_context *lp,
fs_type.length = 4; /* 4 element per vector */
num_fs = 4;
- blend_type.value = 0;
+ memset(&blend_type, 0, sizeof blend_type);
blend_type.floating = FALSE; /* values are integers */
blend_type.sign = FALSE; /* values are unsigned */
blend_type.norm = TRUE; /* values are in [0,1] or [-1,1] */
@@ -586,8 +510,13 @@ generate_fragment(struct llvmpipe_context *lp,
a0_ptr, dadx_ptr, dady_ptr,
x0, y0, 2, 0);
- memset(&sampler, 0, sizeof sampler);
- sampler.context_ptr = context_ptr;
+#if 0
+ /* C texture sampling */
+ sampler = lp_c_sampler_soa_create(context_ptr);
+#else
+ /* code generated texture sampling */
+ sampler = lp_llvm_sampler_soa_create(key->sampler, context_ptr);
+#endif
for(i = 0; i < num_fs; ++i) {
LLVMValueRef index = LLVMConstInt(LLVMInt32Type(), i, 0);
@@ -606,7 +535,7 @@ generate_fragment(struct llvmpipe_context *lp,
context_ptr,
i,
&interp,
- &sampler,
+ sampler,
&fs_mask[i],
out_color,
depth_ptr_i);
@@ -615,6 +544,8 @@ generate_fragment(struct llvmpipe_context *lp,
fs_out_color[chan][i] = out_color[chan];
}
+ sampler->destroy(sampler);
+
/*
* Convert the fs's output color and mask to fit to the blending type.
*/
@@ -765,18 +696,45 @@ llvmpipe_set_constant_buffer(struct pipe_context *pipe,
*/
static void
make_variant_key(struct llvmpipe_context *lp,
+ struct lp_fragment_shader *shader,
struct lp_fragment_shader_variant_key *key)
{
+ unsigned i;
+
memset(key, 0, sizeof *key);
- memcpy(&key->depth, &lp->depth_stencil->depth, sizeof key->depth);
+ 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);
+ }
key->alpha.enabled = lp->depth_stencil->alpha.enabled;
if(key->alpha.enabled)
key->alpha.func = lp->depth_stencil->alpha.func;
/* alpha.ref_value is passed in jit_context */
- memcpy(&key->blend, lp->blend, sizeof key->blend);
+ if(lp->framebuffer.cbufs[0]) {
+ const struct util_format_description *format_desc;
+ unsigned chan;
+
+ memcpy(&key->blend, lp->blend, sizeof key->blend);
+
+ format_desc = util_format_description(lp->framebuffer.cbufs[0]->format);
+ assert(format_desc->layout == UTIL_FORMAT_COLORSPACE_RGB ||
+ format_desc->layout == UTIL_FORMAT_COLORSPACE_SRGB);
+
+ /* mask out color channels not present in the color buffer */
+ for(chan = 0; chan < 4; ++chan) {
+ enum util_format_swizzle swizzle = format_desc->swizzle[chan];
+ if(swizzle > 4)
+ key->blend.colormask &= ~(1 << chan);
+ }
+ }
+
+ 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]);
}
@@ -787,7 +745,7 @@ llvmpipe_update_fs(struct llvmpipe_context *lp)
struct lp_fragment_shader_variant_key key;
struct lp_fragment_shader_variant *variant;
- make_variant_key(lp, &key);
+ make_variant_key(lp, shader, &key);
variant = shader->variants;
while(variant) {