From f027d5612901de8e6167e6288c4e24d91d964e7f Mon Sep 17 00:00:00 2001 From: Brian Paul Date: Mon, 8 Mar 2010 15:19:13 -0700 Subject: llvmpipe/gallivm: checkpoint: array of pointers to mipmap levels Change the texture data_ptr from just a single image pointer to an array of image pointers, indexed by mipmap level. We'll use this for mipmap filtering. For now, the mipmap level is hard-coded to zero. --- src/gallium/auxiliary/gallivm/lp_bld_sample.c | 3 +- src/gallium/auxiliary/gallivm/lp_bld_sample.h | 3 +- src/gallium/auxiliary/gallivm/lp_bld_sample_soa.c | 69 +++++++++++++++-------- 3 files changed, 48 insertions(+), 27 deletions(-) (limited to 'src/gallium/auxiliary') diff --git a/src/gallium/auxiliary/gallivm/lp_bld_sample.c b/src/gallium/auxiliary/gallivm/lp_bld_sample.c index 29cadcc15a..311c9f1b9e 100644 --- a/src/gallium/auxiliary/gallivm/lp_bld_sample.c +++ b/src/gallium/auxiliary/gallivm/lp_bld_sample.c @@ -162,8 +162,7 @@ lp_build_sample_offset(struct lp_build_context *bld, const struct util_format_description *format_desc, LLVMValueRef x, LLVMValueRef y, - LLVMValueRef y_stride, - LLVMValueRef data_ptr) + LLVMValueRef y_stride) { LLVMValueRef x_stride; LLVMValueRef offset; diff --git a/src/gallium/auxiliary/gallivm/lp_bld_sample.h b/src/gallium/auxiliary/gallivm/lp_bld_sample.h index 5ba0925bb6..68db91d6fd 100644 --- a/src/gallium/auxiliary/gallivm/lp_bld_sample.h +++ b/src/gallium/auxiliary/gallivm/lp_bld_sample.h @@ -148,8 +148,7 @@ lp_build_sample_offset(struct lp_build_context *bld, const struct util_format_description *format_desc, LLVMValueRef x, LLVMValueRef y, - LLVMValueRef y_stride, - LLVMValueRef data_ptr); + LLVMValueRef y_stride); void diff --git a/src/gallium/auxiliary/gallivm/lp_bld_sample_soa.c b/src/gallium/auxiliary/gallivm/lp_bld_sample_soa.c index 9058f76c1d..1dca29cdd5 100644 --- a/src/gallium/auxiliary/gallivm/lp_bld_sample_soa.c +++ b/src/gallium/auxiliary/gallivm/lp_bld_sample_soa.c @@ -124,13 +124,14 @@ lp_build_sample_texel_soa(struct lp_build_sample_context *bld, LLVMValueRef x, LLVMValueRef y, LLVMValueRef y_stride, - LLVMValueRef data_ptr, + LLVMValueRef data_array, LLVMValueRef *texel) { struct lp_build_context *int_coord_bld = &bld->int_coord_bld; LLVMValueRef offset; LLVMValueRef packed; LLVMValueRef use_border = NULL; + LLVMValueRef data_ptr; /* use_border = x < 0 || x >= width || y < 0 || y >= height */ if (wrap_mode_uses_border_color(bld->static_state->wrap_s)) { @@ -153,6 +154,16 @@ lp_build_sample_texel_soa(struct lp_build_sample_context *bld, } } + /* XXX always use mipmap level 0 for now */ + { + const int level = 0; + LLVMValueRef indexes[2]; + indexes[0] = LLVMConstInt(LLVMInt32Type(), 0, 0); + indexes[1] = LLVMConstInt(LLVMInt32Type(), level, 0); + data_ptr = LLVMBuildGEP(bld->builder, data_array, indexes, 2, ""); + data_ptr = LLVMBuildLoad(bld->builder, data_ptr, ""); + } + /* * Note: if we find an app which frequently samples the texture border * we might want to implement a true conditional here to avoid sampling @@ -171,8 +182,7 @@ lp_build_sample_texel_soa(struct lp_build_sample_context *bld, /* convert x,y coords to linear offset from start of texture, in bytes */ offset = lp_build_sample_offset(&bld->uint_coord_bld, bld->format_desc, - x, y, y_stride, - data_ptr); + x, y, y_stride); assert(bld->format_desc->block.width == 1); assert(bld->format_desc->block.height == 1); @@ -210,19 +220,31 @@ lp_build_sample_packed(struct lp_build_sample_context *bld, LLVMValueRef x, LLVMValueRef y, LLVMValueRef y_stride, - LLVMValueRef data_ptr) + LLVMValueRef data_array) { LLVMValueRef offset; + LLVMValueRef data_ptr; offset = lp_build_sample_offset(&bld->uint_coord_bld, bld->format_desc, - x, y, y_stride, - data_ptr); + x, y, y_stride); assert(bld->format_desc->block.width == 1); assert(bld->format_desc->block.height == 1); assert(bld->format_desc->block.bits <= bld->texel_type.width); + /* XXX always use mipmap level 0 for now */ + { + const int level = 0; + LLVMValueRef indexes[2]; + /* get data_ptr[level] */ + indexes[0] = LLVMConstInt(LLVMInt32Type(), 0, 0); + indexes[1] = LLVMConstInt(LLVMInt32Type(), level, 0); + data_ptr = LLVMBuildGEP(bld->builder, data_array, indexes, 2, ""); + /* load texture base address */ + data_ptr = LLVMBuildLoad(bld->builder, data_ptr, ""); + } + return lp_build_gather(bld->builder, bld->texel_type.length, bld->format_desc->block.bits, @@ -720,7 +742,7 @@ lp_build_sample_2d_nearest_soa(struct lp_build_sample_context *bld, LLVMValueRef width, LLVMValueRef height, LLVMValueRef stride, - LLVMValueRef data_ptr, + LLVMValueRef data_array, LLVMValueRef *texel) { LLVMValueRef x, y; @@ -735,7 +757,7 @@ lp_build_sample_2d_nearest_soa(struct lp_build_sample_context *bld, lp_build_name(x, "tex.x.wrapped"); lp_build_name(y, "tex.y.wrapped"); - lp_build_sample_texel_soa(bld, width, height, x, y, stride, data_ptr, texel); + lp_build_sample_texel_soa(bld, width, height, x, y, stride, data_array, texel); } @@ -749,7 +771,7 @@ lp_build_sample_2d_linear_soa(struct lp_build_sample_context *bld, LLVMValueRef width, LLVMValueRef height, LLVMValueRef stride, - LLVMValueRef data_ptr, + LLVMValueRef data_array, LLVMValueRef *texel) { LLVMValueRef s_fpart; @@ -764,10 +786,10 @@ lp_build_sample_2d_linear_soa(struct lp_build_sample_context *bld, lp_build_sample_wrap_linear(bld, t, height, bld->static_state->pot_height, bld->static_state->wrap_t, &y0, &y1, &t_fpart); - lp_build_sample_texel_soa(bld, width, height, x0, y0, stride, data_ptr, neighbors[0][0]); - lp_build_sample_texel_soa(bld, width, height, x1, y0, stride, data_ptr, neighbors[0][1]); - lp_build_sample_texel_soa(bld, width, height, x0, y1, stride, data_ptr, neighbors[1][0]); - lp_build_sample_texel_soa(bld, width, height, x1, y1, stride, data_ptr, neighbors[1][1]); + lp_build_sample_texel_soa(bld, width, height, x0, y0, stride, data_array, neighbors[0][0]); + lp_build_sample_texel_soa(bld, width, height, x1, y0, stride, data_array, neighbors[0][1]); + lp_build_sample_texel_soa(bld, width, height, x0, y1, stride, data_array, neighbors[1][0]); + lp_build_sample_texel_soa(bld, width, height, x1, y1, stride, data_array, neighbors[1][1]); /* TODO: Don't interpolate missing channels */ for(chan = 0; chan < 4; ++chan) { @@ -818,7 +840,7 @@ lp_build_sample_2d_linear_aos(struct lp_build_sample_context *bld, LLVMValueRef width, LLVMValueRef height, LLVMValueRef stride, - LLVMValueRef data_ptr, + LLVMValueRef data_array, LLVMValueRef *texel) { LLVMBuilderRef builder = bld->builder; @@ -958,10 +980,10 @@ lp_build_sample_2d_linear_aos(struct lp_build_sample_context *bld, * The higher 8 bits of the resulting elements will be zero. */ - neighbors[0][0] = lp_build_sample_packed(bld, x0, y0, stride, data_ptr); - neighbors[0][1] = lp_build_sample_packed(bld, x1, y0, stride, data_ptr); - neighbors[1][0] = lp_build_sample_packed(bld, x0, y1, stride, data_ptr); - neighbors[1][1] = lp_build_sample_packed(bld, x1, y1, stride, data_ptr); + neighbors[0][0] = lp_build_sample_packed(bld, x0, y0, stride, data_array); + neighbors[0][1] = lp_build_sample_packed(bld, x1, y0, stride, data_array); + neighbors[1][0] = lp_build_sample_packed(bld, x0, y1, stride, data_array); + neighbors[1][1] = lp_build_sample_packed(bld, x1, y1, stride, data_array); neighbors[0][0] = LLVMBuildBitCast(builder, neighbors[0][0], u8n_vec_type, ""); neighbors[0][1] = LLVMBuildBitCast(builder, neighbors[0][1], u8n_vec_type, ""); @@ -1248,7 +1270,7 @@ lp_build_sample_soa(LLVMBuilderRef builder, LLVMValueRef width; LLVMValueRef height; LLVMValueRef stride; - LLVMValueRef data_ptr; + LLVMValueRef data_array; LLVMValueRef s; LLVMValueRef t; LLVMValueRef r; @@ -1276,7 +1298,8 @@ lp_build_sample_soa(LLVMBuilderRef builder, width = dynamic_state->width(dynamic_state, builder, unit); height = dynamic_state->height(dynamic_state, builder, unit); stride = dynamic_state->stride(dynamic_state, builder, unit); - data_ptr = dynamic_state->data_ptr(dynamic_state, builder, unit); + data_array = dynamic_state->data_ptr(dynamic_state, builder, unit); + /* Note that data_array is an array[level] of pointers to texture images */ s = coords[0]; t = coords[1]; @@ -1292,17 +1315,17 @@ lp_build_sample_soa(LLVMBuilderRef builder, switch (static_state->min_img_filter) { case PIPE_TEX_FILTER_NEAREST: lp_build_sample_2d_nearest_soa(&bld, s, t, width, height, - stride, data_ptr, texel); + stride, data_array, texel); break; case PIPE_TEX_FILTER_LINEAR: if(lp_format_is_rgba8(bld.format_desc) && is_simple_wrap_mode(static_state->wrap_s) && is_simple_wrap_mode(static_state->wrap_t)) lp_build_sample_2d_linear_aos(&bld, s, t, width, height, - stride, data_ptr, texel); + stride, data_array, texel); else lp_build_sample_2d_linear_soa(&bld, s, t, width, height, - stride, data_ptr, texel); + stride, data_array, texel); break; default: assert(0); -- cgit v1.2.3