diff options
Diffstat (limited to 'src/gallium/auxiliary/draw')
| -rw-r--r-- | src/gallium/auxiliary/draw/draw_context.c | 7 | ||||
| -rw-r--r-- | src/gallium/auxiliary/draw/draw_context.h | 3 | ||||
| -rw-r--r-- | src/gallium/auxiliary/draw/draw_llvm.c | 90 | ||||
| -rw-r--r-- | src/gallium/auxiliary/draw/draw_llvm.h | 1 | ||||
| -rw-r--r-- | src/gallium/auxiliary/draw/draw_private.h | 11 | ||||
| -rw-r--r-- | src/gallium/auxiliary/draw/draw_pt.c | 9 | ||||
| -rw-r--r-- | src/gallium/auxiliary/draw/draw_pt_fetch_shade_pipeline_llvm.c | 1 | ||||
| -rw-r--r-- | src/gallium/auxiliary/draw/draw_pt_vsplit_tmp.h | 42 |
8 files changed, 110 insertions, 54 deletions
diff --git a/src/gallium/auxiliary/draw/draw_context.c b/src/gallium/auxiliary/draw/draw_context.c index 4eb1919..7819038 100644 --- a/src/gallium/auxiliary/draw/draw_context.c +++ b/src/gallium/auxiliary/draw/draw_context.c @@ -627,7 +627,8 @@ void draw_set_render( struct draw_context *draw, */ void draw_set_indexes(struct draw_context *draw, - const void *elements, unsigned elem_size) + const void *elements, unsigned elem_size, + unsigned elem_buffer_space) { assert(elem_size == 0 || elem_size == 1 || @@ -635,6 +636,10 @@ draw_set_indexes(struct draw_context *draw, elem_size == 4); draw->pt.user.elts = elements; draw->pt.user.eltSizeIB = elem_size; + if (elem_size) + draw->pt.user.eltMax = elem_buffer_space / elem_size; + else + draw->pt.user.eltMax = 0; } diff --git a/src/gallium/auxiliary/draw/draw_context.h b/src/gallium/auxiliary/draw/draw_context.h index c7a40a1..47bad0d 100644 --- a/src/gallium/auxiliary/draw/draw_context.h +++ b/src/gallium/auxiliary/draw/draw_context.h @@ -212,7 +212,8 @@ void draw_set_vertex_elements(struct draw_context *draw, const struct pipe_vertex_element *elements); void draw_set_indexes(struct draw_context *draw, - const void *elements, unsigned elem_size); + const void *elements, unsigned elem_size, + unsigned available_space); void draw_set_mapped_vertex_buffer(struct draw_context *draw, unsigned attr, const void *buffer, diff --git a/src/gallium/auxiliary/draw/draw_llvm.c b/src/gallium/auxiliary/draw/draw_llvm.c index 24b7be3..017d729 100644 --- a/src/gallium/auxiliary/draw/draw_llvm.c +++ b/src/gallium/auxiliary/draw/draw_llvm.c @@ -1455,14 +1455,16 @@ draw_llvm_generate(struct draw_llvm *llvm, struct draw_llvm_variant *variant, struct gallivm_state *gallivm = variant->gallivm; LLVMContextRef context = gallivm->context; LLVMTypeRef int32_type = LLVMInt32TypeInContext(context); - LLVMTypeRef arg_types[8]; + LLVMTypeRef arg_types[9]; + unsigned num_arg_types = + elts ? Elements(arg_types) : Elements(arg_types) - 1; LLVMTypeRef func_type; LLVMValueRef context_ptr; LLVMBasicBlockRef block; LLVMBuilderRef builder; struct lp_type vs_type; LLVMValueRef end, start; - LLVMValueRef count, fetch_elts, fetch_count; + LLVMValueRef count, fetch_elts, fetch_elt_max, fetch_count; LLVMValueRef stride, step, io_itr; LLVMValueRef io_ptr, vbuffers_ptr, vb_ptr; LLVMValueRef zero = lp_build_const_int32(gallivm, 0); @@ -1495,19 +1497,21 @@ draw_llvm_generate(struct draw_llvm *llvm, struct draw_llvm_variant *variant, memset(&system_values, 0, sizeof(system_values)); - arg_types[0] = get_context_ptr_type(variant); /* context */ - arg_types[1] = get_vertex_header_ptr_type(variant); /* vertex_header */ - arg_types[2] = get_buffer_ptr_type(variant); /* vbuffers */ - if (elts) - arg_types[3] = LLVMPointerType(int32_type, 0);/* fetch_elts * */ - else - arg_types[3] = int32_type; /* start */ - arg_types[4] = int32_type; /* fetch_count / count */ - arg_types[5] = int32_type; /* stride */ - arg_types[6] = get_vb_ptr_type(variant); /* pipe_vertex_buffer's */ - arg_types[7] = int32_type; /* instance_id */ + i = 0; + arg_types[i++] = get_context_ptr_type(variant); /* context */ + arg_types[i++] = get_vertex_header_ptr_type(variant); /* vertex_header */ + arg_types[i++] = get_buffer_ptr_type(variant); /* vbuffers */ + if (elts) { + arg_types[i++] = LLVMPointerType(int32_type, 0);/* fetch_elts */ + arg_types[i++] = int32_type; /* fetch_elt_max */ + } else + arg_types[i++] = int32_type; /* start */ + arg_types[i++] = int32_type; /* fetch_count / count */ + arg_types[i++] = int32_type; /* stride */ + arg_types[i++] = get_vb_ptr_type(variant); /* pipe_vertex_buffer's */ + arg_types[i++] = int32_type; /* instance_id */ - func_type = LLVMFunctionType(int32_type, arg_types, Elements(arg_types), 0); + func_type = LLVMFunctionType(int32_type, arg_types, num_arg_types, 0); variant_func = LLVMAddFunction(gallivm->module, elts ? "draw_llvm_shader_elts" : "draw_llvm_shader", @@ -1519,7 +1523,7 @@ draw_llvm_generate(struct draw_llvm *llvm, struct draw_llvm_variant *variant, variant->function = variant_func; LLVMSetFunctionCallConv(variant_func, LLVMCCallConv); - for (i = 0; i < Elements(arg_types); ++i) + for (i = 0; i < num_arg_types; ++i) if (LLVMGetTypeKind(arg_types[i]) == LLVMPointerTypeKind) LLVMAddAttribute(LLVMGetParam(variant_func, i), LLVMNoAliasAttribute); @@ -1527,9 +1531,9 @@ draw_llvm_generate(struct draw_llvm *llvm, struct draw_llvm_variant *variant, context_ptr = LLVMGetParam(variant_func, 0); io_ptr = LLVMGetParam(variant_func, 1); vbuffers_ptr = LLVMGetParam(variant_func, 2); - stride = LLVMGetParam(variant_func, 5); - vb_ptr = LLVMGetParam(variant_func, 6); - system_values.instance_id = LLVMGetParam(variant_func, 7); + stride = LLVMGetParam(variant_func, 5 + (elts ? 1 : 0)); + vb_ptr = LLVMGetParam(variant_func, 6 + (elts ? 1 : 0)); + system_values.instance_id = LLVMGetParam(variant_func, 7 + (elts ? 1 : 0)); lp_build_name(context_ptr, "context"); lp_build_name(io_ptr, "io"); @@ -1539,9 +1543,11 @@ draw_llvm_generate(struct draw_llvm *llvm, struct draw_llvm_variant *variant, lp_build_name(system_values.instance_id, "instance_id"); if (elts) { - fetch_elts = LLVMGetParam(variant_func, 3); - fetch_count = LLVMGetParam(variant_func, 4); + fetch_elts = LLVMGetParam(variant_func, 3); + fetch_elt_max = LLVMGetParam(variant_func, 4); + fetch_count = LLVMGetParam(variant_func, 5); lp_build_name(fetch_elts, "fetch_elts"); + lp_build_name(fetch_elt_max, "fetch_elt_max"); lp_build_name(fetch_count, "fetch_count"); start = count = NULL; } @@ -1621,16 +1627,48 @@ draw_llvm_generate(struct draw_llvm *llvm, struct draw_llvm_variant *variant, * a few of the 4 vertex fetches will be out of bounds */ true_index = lp_build_min(&bld, true_index, fetch_max); + system_values.vertex_id = LLVMBuildInsertElement( + gallivm->builder, + system_values.vertex_id, true_index, + lp_build_const_int32(gallivm, i), ""); + if (elts) { LLVMValueRef fetch_ptr; - fetch_ptr = LLVMBuildGEP(builder, fetch_elts, - &true_index, 1, ""); - true_index = LLVMBuildLoad(builder, fetch_ptr, "fetch_elt"); + LLVMValueRef index_overflowed; + LLVMValueRef index_ptr = + lp_build_alloca( + gallivm, + lp_build_vec_type(gallivm, lp_type_int(32)), ""); + struct lp_build_if_state if_ctx; + index_overflowed = LLVMBuildICmp(builder, LLVMIntUGE, + true_index, fetch_elt_max, + "index_overflowed"); + + lp_build_if(&if_ctx, gallivm, index_overflowed); + { + /* Generate maximum possible index so that + * generate_fetch can treat it just like + * any other overflow and return zeros. + * We don't have to worry about the restart + * primitive index because it has already been + * handled + */ + LLVMValueRef val = + lp_build_const_int32(gallivm, 0xffffffff); + LLVMBuildStore(builder, val, index_ptr); + } + lp_build_else(&if_ctx); + { + LLVMValueRef val; + fetch_ptr = LLVMBuildGEP(builder, fetch_elts, + &true_index, 1, ""); + val = LLVMBuildLoad(builder, fetch_ptr, ""); + LLVMBuildStore(builder, val, index_ptr); + } + lp_build_endif(&if_ctx); + true_index = LLVMBuildLoad(builder, index_ptr, "true_index"); } - system_values.vertex_id = LLVMBuildInsertElement(gallivm->builder, - system_values.vertex_id, true_index, - lp_build_const_int32(gallivm, i), ""); for (j = 0; j < draw->pt.nr_vertex_elements; ++j) { struct pipe_vertex_element *velem = &draw->pt.vertex_element[j]; LLVMValueRef vb_index = diff --git a/src/gallium/auxiliary/draw/draw_llvm.h b/src/gallium/auxiliary/draw/draw_llvm.h index d517b29..347fde2 100644 --- a/src/gallium/auxiliary/draw/draw_llvm.h +++ b/src/gallium/auxiliary/draw/draw_llvm.h @@ -271,6 +271,7 @@ typedef int struct vertex_header *io, const struct draw_vertex_buffer vbuffers[PIPE_MAX_ATTRIBS], const unsigned *fetch_elts, + unsigned fetch_max_elt, unsigned fetch_count, unsigned stride, struct pipe_vertex_buffer *vertex_buffers, diff --git a/src/gallium/auxiliary/draw/draw_private.h b/src/gallium/auxiliary/draw/draw_private.h index 84344c3..44698db 100644 --- a/src/gallium/auxiliary/draw/draw_private.h +++ b/src/gallium/auxiliary/draw/draw_private.h @@ -186,7 +186,8 @@ struct draw_context /** bytes per index (0, 1, 2 or 4) */ unsigned eltSizeIB; unsigned eltSize; - int eltBias; + unsigned eltMax; + int eltBias; unsigned min_index; unsigned max_index; @@ -460,4 +461,12 @@ draw_get_rasterizer_no_cull( struct draw_context *draw, boolean flatshade ); +/** + * Return index i from the index buffer. + * If the index buffer would overflow we return the + * index of the first element in the vb. + */ +#define DRAW_GET_IDX(elts, i) \ + ((i) >= draw->pt.user.eltMax) ? 0 : elts[i] + #endif /* DRAW_PRIVATE_H */ diff --git a/src/gallium/auxiliary/draw/draw_pt.c b/src/gallium/auxiliary/draw/draw_pt.c index a797d65..14dde67 100644 --- a/src/gallium/auxiliary/draw/draw_pt.c +++ b/src/gallium/auxiliary/draw/draw_pt.c @@ -339,7 +339,7 @@ draw_print_arrays(struct draw_context *draw, uint prim, int start, uint count) #define PRIM_RESTART_LOOP(elements) \ do { \ for (i = start; i < end; i++) { \ - if (elements[i] == info->restart_index) { \ + if (i < elt_max && elements[i] == info->restart_index) { \ if (cur_count > 0) { \ /* draw elts up to prev pos */ \ draw_pt_arrays(draw, prim, cur_start, cur_count); \ @@ -371,6 +371,7 @@ draw_pt_arrays_restart(struct draw_context *draw, const unsigned start = info->start; const unsigned count = info->count; const unsigned end = start + count; + const unsigned elt_max = draw->pt.user.eltMax; unsigned i, cur_start, cur_count; assert(info->primitive_restart); @@ -496,7 +497,7 @@ draw_vbo(struct draw_context *draw, assert(info->instance_count > 0); if (info->indexed) assert(draw->pt.user.elts); - + count = info->count; draw->pt.user.eltBias = info->index_bias; @@ -506,7 +507,7 @@ draw_vbo(struct draw_context *draw, if (0) debug_printf("draw_vbo(mode=%u start=%u count=%u):\n", - info->mode, info->start, info->count); + info->mode, info->start, count); if (0) tgsi_dump(draw->vs.vertex_shader->state.tokens, 0); @@ -534,7 +535,7 @@ draw_vbo(struct draw_context *draw, } if (0) - draw_print_arrays(draw, info->mode, info->start, MIN2(info->count, 20)); + draw_print_arrays(draw, info->mode, info->start, MIN2(count, 20)); index_limit = util_draw_max_index(draw->pt.vertex_buffer, draw->pt.vertex_element, diff --git a/src/gallium/auxiliary/draw/draw_pt_fetch_shade_pipeline_llvm.c b/src/gallium/auxiliary/draw/draw_pt_fetch_shade_pipeline_llvm.c index fa8baf3..f734311 100644 --- a/src/gallium/auxiliary/draw/draw_pt_fetch_shade_pipeline_llvm.c +++ b/src/gallium/auxiliary/draw/draw_pt_fetch_shade_pipeline_llvm.c @@ -359,6 +359,7 @@ llvm_pipeline_generic( struct draw_pt_middle_end *middle, llvm_vert_info.verts, draw->pt.user.vbuffer, fetch_info->elts, + draw->pt.user.eltMax, fetch_info->count, fpme->vertex_size, draw->pt.vertex_buffer, diff --git a/src/gallium/auxiliary/draw/draw_pt_vsplit_tmp.h b/src/gallium/auxiliary/draw/draw_pt_vsplit_tmp.h index 2e94705..2d8957e 100644 --- a/src/gallium/auxiliary/draw/draw_pt_vsplit_tmp.h +++ b/src/gallium/auxiliary/draw/draw_pt_vsplit_tmp.h @@ -45,16 +45,16 @@ CONCAT(vsplit_primitive_, ELT_TYPE)(struct vsplit_frontend *vsplit, unsigned fetch_start, fetch_count; const ushort *draw_elts = NULL; unsigned i; - - ib += istart; + const unsigned start = istart; + const unsigned end = istart + icount; /* use the ib directly */ if (min_index == 0 && sizeof(ib[0]) == sizeof(draw_elts[0])) { if (icount > vsplit->max_vertices) return FALSE; - for (i = 0; i < icount; i++) { - ELT_TYPE idx = ib[i]; + for (i = start; i < end; i++) { + ELT_TYPE idx = DRAW_GET_IDX(ib, i); if (idx < min_index || idx > max_index) { debug_printf("warning: index out of range\n"); } @@ -85,23 +85,23 @@ CONCAT(vsplit_primitive_, ELT_TYPE)(struct vsplit_frontend *vsplit, if (!draw_elts) { if (min_index == 0) { - for (i = 0; i < icount; i++) { - ELT_TYPE idx = ib[i]; + for (i = start; i < end; i++) { + ELT_TYPE idx = DRAW_GET_IDX(ib, i); if (idx < min_index || idx > max_index) { debug_printf("warning: index out of range\n"); } - vsplit->draw_elts[i] = (ushort) idx; + vsplit->draw_elts[i - start] = (ushort) idx; } } else { - for (i = 0; i < icount; i++) { - ELT_TYPE idx = ib[i]; + for (i = start; i < end; i++) { + ELT_TYPE idx = DRAW_GET_IDX(ib, i); if (idx < min_index || idx > max_index) { debug_printf("warning: index out of range\n"); } - vsplit->draw_elts[i] = (ushort) (idx - min_index); + vsplit->draw_elts[i - start] = (ushort) (idx - min_index); } } @@ -138,41 +138,41 @@ CONCAT(vsplit_segment_cache_, ELT_TYPE)(struct vsplit_frontend *vsplit, spoken = !!spoken; if (ibias == 0) { if (spoken) - ADD_CACHE(vsplit, ib[ispoken]); + ADD_CACHE(vsplit, DRAW_GET_IDX(ib, ispoken)); for (i = spoken; i < icount; i++) - ADD_CACHE(vsplit, ib[istart + i]); + ADD_CACHE(vsplit, DRAW_GET_IDX(ib, istart + i)); if (close) - ADD_CACHE(vsplit, ib[iclose]); + ADD_CACHE(vsplit, DRAW_GET_IDX(ib, iclose)); } else if (ibias > 0) { if (spoken) - ADD_CACHE(vsplit, (uint) ib[ispoken] + ibias); + ADD_CACHE(vsplit, (uint) DRAW_GET_IDX(ib, ispoken) + ibias); for (i = spoken; i < icount; i++) - ADD_CACHE(vsplit, (uint) ib[istart + i] + ibias); + ADD_CACHE(vsplit, (uint) DRAW_GET_IDX(ib, istart + i) + ibias); if (close) - ADD_CACHE(vsplit, (uint) ib[iclose] + ibias); + ADD_CACHE(vsplit, (uint) DRAW_GET_IDX(ib, iclose) + ibias); } else { if (spoken) { if ((int) ib[ispoken] < -ibias) return; - ADD_CACHE(vsplit, ib[ispoken] + ibias); + ADD_CACHE(vsplit, DRAW_GET_IDX(ib, ispoken) + ibias); } for (i = spoken; i < icount; i++) { - if ((int) ib[istart + i] < -ibias) + if ((int) DRAW_GET_IDX(ib, istart + i) < -ibias) return; - ADD_CACHE(vsplit, ib[istart + i] + ibias); + ADD_CACHE(vsplit, DRAW_GET_IDX(ib, istart + i) + ibias); } if (close) { - if ((int) ib[iclose] < -ibias) + if ((int) DRAW_GET_IDX(ib, iclose) < -ibias) return; - ADD_CACHE(vsplit, ib[iclose] + ibias); + ADD_CACHE(vsplit, DRAW_GET_IDX(ib, iclose) + ibias); } } |