diff options
| -rw-r--r-- | src/gallium/drivers/llvmpipe/lp_bld_tgsi.h | 35 | ||||
| -rw-r--r-- | src/gallium/drivers/llvmpipe/lp_bld_tgsi_soa.c | 16 | ||||
| -rw-r--r-- | src/gallium/drivers/llvmpipe/lp_state_fs.c | 115 | ||||
| -rw-r--r-- | src/gallium/drivers/llvmpipe/lp_tex_sample.c | 133 | ||||
| -rw-r--r-- | src/gallium/drivers/llvmpipe/lp_tex_sample.h | 12 |
5 files changed, 186 insertions, 125 deletions
diff --git a/src/gallium/drivers/llvmpipe/lp_bld_tgsi.h b/src/gallium/drivers/llvmpipe/lp_bld_tgsi.h index 912db24aecb..10c251c4162 100644 --- a/src/gallium/drivers/llvmpipe/lp_bld_tgsi.h +++ b/src/gallium/drivers/llvmpipe/lp_bld_tgsi.h @@ -44,14 +44,30 @@ struct lp_build_context; struct lp_build_mask_context; -typedef void -(*lp_emit_fetch_texel_soa_callback)( LLVMBuilderRef builder, - void *context, - unsigned unit, - unsigned num_coords, - const LLVMValueRef *coords, - LLVMValueRef lodbias, - LLVMValueRef *texel); +/** + * Sampler code generation interface. + * + * Although texture sampling is a requirement for TGSI translation, it is + * a very different problem with several different approaches to it. This + * structure establishes an interface for texture sampling code generation, so + * that we can easily use different texture sampling strategies. + */ +struct lp_build_sampler_soa +{ + void + (*destroy)( struct lp_build_sampler_soa *sampler ); + + void + (*emit_fetch_texel)( struct lp_build_sampler_soa *sampler, + LLVMBuilderRef builder, + union lp_type type, + unsigned unit, + unsigned num_coords, + const LLVMValueRef *coords, + LLVMValueRef lodbias, + LLVMValueRef *texel); +}; + void lp_build_tgsi_soa(LLVMBuilderRef builder, @@ -62,8 +78,7 @@ lp_build_tgsi_soa(LLVMBuilderRef builder, const LLVMValueRef *pos, const LLVMValueRef (*inputs)[4], LLVMValueRef (*outputs)[4], - lp_emit_fetch_texel_soa_callback emit_fetch_texel, - void *emit_fetch_texel_context); + struct lp_build_sampler_soa *sampler); #endif /* LP_BLD_TGSI_H */ diff --git a/src/gallium/drivers/llvmpipe/lp_bld_tgsi_soa.c b/src/gallium/drivers/llvmpipe/lp_bld_tgsi_soa.c index d4d18febec7..3ce379de12f 100644 --- a/src/gallium/drivers/llvmpipe/lp_bld_tgsi_soa.c +++ b/src/gallium/drivers/llvmpipe/lp_bld_tgsi_soa.c @@ -88,8 +88,7 @@ struct lp_build_tgsi_soa_context const LLVMValueRef (*inputs)[NUM_CHANNELS]; LLVMValueRef (*outputs)[NUM_CHANNELS]; - lp_emit_fetch_texel_soa_callback emit_fetch_texel; - void *emit_fetch_texel_context; + struct lp_build_sampler_soa *sampler; LLVMValueRef immediates[LP_MAX_IMMEDIATES][NUM_CHANNELS]; LLVMValueRef temps[LP_MAX_TEMPS][NUM_CHANNELS]; @@ -289,8 +288,11 @@ emit_tex( struct lp_build_tgsi_soa_context *bld, coords[i] = lp_build_mul(&bld->base, coords[i], oow); } - bld->emit_fetch_texel(bld->base.builder, bld->emit_fetch_texel_context, - unit, num_coords, coords, lodbias, texel); + bld->sampler->emit_fetch_texel(bld->sampler, + bld->base.builder, + bld->base.type, + unit, num_coords, coords, lodbias, + texel); FOR_EACH_DST0_ENABLED_CHANNEL( inst, i ) { emit_store( bld, inst, 0, i, texel[i] ); @@ -1283,8 +1285,7 @@ lp_build_tgsi_soa(LLVMBuilderRef builder, const LLVMValueRef *pos, const LLVMValueRef (*inputs)[NUM_CHANNELS], LLVMValueRef (*outputs)[NUM_CHANNELS], - lp_emit_fetch_texel_soa_callback emit_fetch_texel, - void *emit_fetch_texel_context) + struct lp_build_sampler_soa *sampler) { struct lp_build_tgsi_soa_context bld; struct tgsi_parse_context parse; @@ -1299,8 +1300,7 @@ lp_build_tgsi_soa(LLVMBuilderRef builder, bld.inputs = inputs; bld.outputs = outputs; bld.consts_ptr = consts_ptr; - bld.emit_fetch_texel = emit_fetch_texel; - bld.emit_fetch_texel_context = emit_fetch_texel_context; + bld.sampler = sampler; tgsi_parse_init( &parse, tokens ); diff --git a/src/gallium/drivers/llvmpipe/lp_state_fs.c b/src/gallium/drivers/llvmpipe/lp_state_fs.c index 94170bd7161..80f705c871e 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}; @@ -173,107 +174,6 @@ 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. */ @@ -286,7 +186,7 @@ generate_fs(struct llvmpipe_context *lp, 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) @@ -327,7 +227,7 @@ generate_fs(struct llvmpipe_context *lp, 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) { @@ -462,7 +362,7 @@ 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]; @@ -586,8 +486,7 @@ 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; + sampler = lp_c_sampler_soa_create(context_ptr); for(i = 0; i < num_fs; ++i) { LLVMValueRef index = LLVMConstInt(LLVMInt32Type(), i, 0); @@ -606,7 +505,7 @@ generate_fragment(struct llvmpipe_context *lp, context_ptr, i, &interp, - &sampler, + sampler, &fs_mask[i], out_color, depth_ptr_i); @@ -615,6 +514,8 @@ 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. */ diff --git a/src/gallium/drivers/llvmpipe/lp_tex_sample.c b/src/gallium/drivers/llvmpipe/lp_tex_sample.c index 94eb6dad5af..9a876f404df 100644 --- a/src/gallium/drivers/llvmpipe/lp_tex_sample.c +++ b/src/gallium/drivers/llvmpipe/lp_tex_sample.c @@ -1578,3 +1578,136 @@ out: tgsi_sampler->get_samples( tgsi_sampler, s, t, p, lodbias, rgba ); } + +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 +} + + +#include "lp_bld_type.h" +#include "lp_bld_intr.h" +#include "lp_bld_tgsi.h" + + +struct lp_c_sampler_soa +{ + struct lp_build_sampler_soa base; + + LLVMValueRef context_ptr; + + LLVMValueRef samplers_ptr; + + /** Coords/texels store */ + LLVMValueRef store_ptr; +}; + + +static void +lp_c_sampler_soa_destroy(struct lp_build_sampler_soa *sampler) +{ + FREE(sampler); +} + + +static void +lp_c_sampler_soa_emit_fetch_texel(struct lp_build_sampler_soa *_sampler, + LLVMBuilderRef builder, + union lp_type type, + unsigned unit, + unsigned num_coords, + const LLVMValueRef *coords, + LLVMValueRef lodbias, + LLVMValueRef *texel) +{ + struct lp_c_sampler_soa *sampler = (struct lp_c_sampler_soa *)_sampler; + LLVMTypeRef vec_type = LLVMTypeOf(coords[0]); + LLVMValueRef args[3]; + unsigned i; + + if(!sampler->samplers_ptr) + sampler->samplers_ptr = lp_jit_context_samplers(builder, sampler->context_ptr); + + if(!sampler->store_ptr) + sampler->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, sampler->store_ptr, &index, 1, ""); + LLVMBuildStore(builder, coords[i], coord_ptr); + } + + args[0] = sampler->samplers_ptr; + args[1] = LLVMConstInt(LLVMInt32Type(), unit, 0); + args[2] = sampler->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, sampler->store_ptr, &index, 1, ""); + texel[i] = LLVMBuildLoad(builder, texel_ptr, ""); + } +} + + +struct lp_build_sampler_soa * +lp_c_sampler_soa_create(LLVMValueRef context_ptr) +{ + struct lp_c_sampler_soa *sampler; + + sampler = CALLOC_STRUCT(lp_c_sampler_soa); + if(!sampler) + return NULL; + + sampler->base.destroy = lp_c_sampler_soa_destroy; + sampler->base.emit_fetch_texel = lp_c_sampler_soa_emit_fetch_texel; + sampler->context_ptr = context_ptr; + + return &sampler->base; +} + diff --git a/src/gallium/drivers/llvmpipe/lp_tex_sample.h b/src/gallium/drivers/llvmpipe/lp_tex_sample.h index 628ec3f1efd..7d1e5658853 100644 --- a/src/gallium/drivers/llvmpipe/lp_tex_sample.h +++ b/src/gallium/drivers/llvmpipe/lp_tex_sample.h @@ -29,6 +29,8 @@ #define LP_TEX_SAMPLE_H +#include <llvm-c/Core.h> + #include "tgsi/tgsi_exec.h" @@ -75,4 +77,14 @@ lp_get_samples(struct tgsi_sampler *tgsi_sampler, float rgba[NUM_CHANNELS][QUAD_SIZE]); +/** + * Texture sampling code generator that just calls lp_get_samples C function + * for the actual sampling computation. + * + * @param context_ptr LLVM value with the pointer to the struct lp_jit_context. + */ +struct lp_build_sampler_soa * +lp_c_sampler_soa_create(LLVMValueRef context_ptr); + + #endif /* LP_TEX_SAMPLE_H */ |