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-rw-r--r--src/gallium/auxiliary/gallivm/lp_bld_sample_soa.c188
1 files changed, 137 insertions, 51 deletions
diff --git a/src/gallium/auxiliary/gallivm/lp_bld_sample_soa.c b/src/gallium/auxiliary/gallivm/lp_bld_sample_soa.c
index 19d78424bc..ba62d7a013 100644
--- a/src/gallium/auxiliary/gallivm/lp_bld_sample_soa.c
+++ b/src/gallium/auxiliary/gallivm/lp_bld_sample_soa.c
@@ -1414,6 +1414,85 @@ lp_build_cube_lookup(struct lp_build_sample_context *bld,
/**
+ * Sample the texture/mipmap using given image filter and mip filter.
+ * data0_ptr and data1_ptr point to the two mipmap levels to sample
+ * from. width0/1_vec, height0/1_vec, depth0/1_vec indicate their sizes.
+ * If we're using nearest miplevel sampling the '1' values will be null/unused.
+ */
+static void
+lp_sample_mipmap(struct lp_build_sample_context *bld,
+ unsigned img_filter,
+ unsigned mip_filter,
+ LLVMValueRef s,
+ LLVMValueRef t,
+ LLVMValueRef r,
+ LLVMValueRef lod_fpart,
+ LLVMValueRef width0_vec,
+ LLVMValueRef width1_vec,
+ LLVMValueRef height0_vec,
+ LLVMValueRef height1_vec,
+ LLVMValueRef depth0_vec,
+ LLVMValueRef depth1_vec,
+ LLVMValueRef row_stride0_vec,
+ LLVMValueRef row_stride1_vec,
+ LLVMValueRef img_stride0_vec,
+ LLVMValueRef img_stride1_vec,
+ LLVMValueRef data_ptr0,
+ LLVMValueRef data_ptr1,
+ LLVMValueRef *colors_out)
+{
+ LLVMValueRef colors0[4], colors1[4];
+ int chan;
+
+ if (img_filter == PIPE_TEX_FILTER_NEAREST) {
+ lp_build_sample_image_nearest(bld,
+ width0_vec, height0_vec, depth0_vec,
+ row_stride0_vec, img_stride0_vec,
+ data_ptr0, s, t, r, colors0);
+
+ if (mip_filter == PIPE_TEX_MIPFILTER_LINEAR) {
+ /* sample the second mipmap level, and interp */
+ lp_build_sample_image_nearest(bld,
+ width1_vec, height1_vec, depth1_vec,
+ row_stride1_vec, img_stride1_vec,
+ data_ptr1, s, t, r, colors1);
+ }
+ }
+ else {
+ assert(img_filter == PIPE_TEX_FILTER_LINEAR);
+
+ lp_build_sample_image_linear(bld,
+ width0_vec, height0_vec, depth0_vec,
+ row_stride0_vec, img_stride0_vec,
+ data_ptr0, s, t, r, colors0);
+
+ if (mip_filter == PIPE_TEX_MIPFILTER_LINEAR) {
+ /* sample the second mipmap level, and interp */
+ lp_build_sample_image_linear(bld,
+ width1_vec, height1_vec, depth1_vec,
+ row_stride1_vec, img_stride1_vec,
+ data_ptr1, s, t, r, colors1);
+ }
+ }
+
+ if (mip_filter == PIPE_TEX_MIPFILTER_LINEAR) {
+ /* interpolate samples from the two mipmap levels */
+ for (chan = 0; chan < 4; chan++) {
+ colors_out[chan] = lp_build_lerp(&bld->texel_bld, lod_fpart,
+ colors0[chan], colors1[chan]);
+ }
+ }
+ else {
+ /* use first/only level's colors */
+ for (chan = 0; chan < 4; chan++) {
+ colors_out[chan] = colors0[chan];
+ }
+ }
+}
+
+
+
+/**
* General texture sampling codegen.
* This function handles texture sampling for all texture targets (1D,
* 2D, 3D, cube) and all filtering modes.
@@ -1435,6 +1514,7 @@ lp_build_sample_general(struct lp_build_sample_context *bld,
LLVMValueRef data_array,
LLVMValueRef *colors_out)
{
+ struct lp_build_context *float_bld = &bld->float_bld;
const unsigned mip_filter = bld->static_state->min_mip_filter;
const unsigned min_filter = bld->static_state->min_img_filter;
const unsigned mag_filter = bld->static_state->mag_img_filter;
@@ -1446,7 +1526,6 @@ lp_build_sample_general(struct lp_build_sample_context *bld,
LLVMValueRef row_stride0_vec = NULL, row_stride1_vec = NULL;
LLVMValueRef img_stride0_vec = NULL, img_stride1_vec = NULL;
LLVMValueRef data_ptr0, data_ptr1;
- int chan;
/*
printf("%s mip %d min %d mag %d\n", __FUNCTION__,
@@ -1459,6 +1538,10 @@ lp_build_sample_general(struct lp_build_sample_context *bld,
if (mip_filter == PIPE_TEX_MIPFILTER_NONE) {
/* always use mip level 0 */
ilevel0 = LLVMConstInt(LLVMInt32Type(), 0, 0);
+
+ /* XXX temporary here */
+ lod = lp_build_lod_selector(bld, s, t, r, width, height, depth);
+
}
else {
/* compute float LOD */
@@ -1538,62 +1621,65 @@ lp_build_sample_general(struct lp_build_sample_context *bld,
/*
* Get/interpolate texture colors.
*/
- /* XXX temporarily force this path: */
- if (1 /*min_filter == mag_filter*/) {
- /* same filter for minification or magnification */
- LLVMValueRef colors0[4], colors1[4];
-
- if (min_filter == PIPE_TEX_FILTER_NEAREST) {
- lp_build_sample_image_nearest(bld,
- width0_vec, height0_vec, depth0_vec,
- row_stride0_vec, img_stride0_vec,
- data_ptr0, s, t, r, colors0);
-
- if (mip_filter == PIPE_TEX_MIPFILTER_LINEAR) {
- /* sample the second mipmap level, and interp */
- lp_build_sample_image_nearest(bld,
- width1_vec, height1_vec, depth1_vec,
- row_stride1_vec, img_stride1_vec,
- data_ptr1, s, t, r, colors1);
- }
- }
- else {
- assert(min_filter == PIPE_TEX_FILTER_LINEAR);
+ if (min_filter == mag_filter) {
+ /* no need to distinquish between minification and magnification */
+ lp_sample_mipmap(bld, min_filter, mip_filter, s, t, r, lod_fpart,
+ width0_vec, width1_vec,
+ height0_vec, height1_vec,
+ depth0_vec, depth1_vec,
+ row_stride0_vec, row_stride1_vec,
+ img_stride0_vec, img_stride1_vec,
+ data_ptr0, data_ptr1,
+ colors_out);
+ }
+ else {
+ /* Emit conditional to choose min image filter or mag image filter
+ * depending on the lod being >0 or <= 0, respectively.
+ */
+ struct lp_build_flow_context *flow_ctx;
+ struct lp_build_if_state if_ctx;
+ LLVMValueRef minify;
- lp_build_sample_image_linear(bld,
- width0_vec, height0_vec, depth0_vec,
- row_stride0_vec, img_stride0_vec,
- data_ptr0, s, t, r, colors0);
+ flow_ctx = lp_build_flow_create(bld->builder);
+ lp_build_flow_scope_begin(flow_ctx);
+ lp_build_flow_scope_declare(flow_ctx, &colors_out[0]);
+ lp_build_flow_scope_declare(flow_ctx, &colors_out[1]);
+ lp_build_flow_scope_declare(flow_ctx, &colors_out[2]);
+ lp_build_flow_scope_declare(flow_ctx, &colors_out[3]);
- if (mip_filter == PIPE_TEX_MIPFILTER_LINEAR) {
- /* sample the second mipmap level, and interp */
- lp_build_sample_image_linear(bld,
- width1_vec, height1_vec, depth1_vec,
- row_stride1_vec, img_stride1_vec,
- data_ptr1, s, t, r, colors1);
- }
- }
+ /* minify = lod > 0.0 */
+ minify = LLVMBuildFCmp(bld->builder, LLVMRealUGE,
+ lod, float_bld->zero, "");
- if (mip_filter == PIPE_TEX_MIPFILTER_LINEAR) {
- /* interpolate samples from the two mipmap levels */
- for (chan = 0; chan < 4; chan++) {
- colors_out[chan] = lp_build_lerp(&bld->texel_bld, lod_fpart,
- colors0[chan], colors1[chan]);
- }
+ lp_build_if(&if_ctx, flow_ctx, bld->builder, minify);
+ {
+ /* Use the minification filter */
+ lp_sample_mipmap(bld, min_filter, mip_filter, s, t, r, lod_fpart,
+ width0_vec, width1_vec,
+ height0_vec, height1_vec,
+ depth0_vec, depth1_vec,
+ row_stride0_vec, row_stride1_vec,
+ img_stride0_vec, img_stride1_vec,
+ data_ptr0, data_ptr1,
+ colors_out);
}
- else {
- /* use first/only level's colors */
- for (chan = 0; chan < 4; chan++) {
- colors_out[chan] = colors0[chan];
- }
+ lp_build_else(&if_ctx);
+ {
+ /* Use the magnification filter */
+ lp_sample_mipmap(bld, mag_filter, mip_filter, s, t, r, lod_fpart,
+ width0_vec, width1_vec,
+ height0_vec, height1_vec,
+ depth0_vec, depth1_vec,
+ row_stride0_vec, row_stride1_vec,
+ img_stride0_vec, img_stride1_vec,
+ data_ptr0, data_ptr1,
+ colors_out);
}
- }
- else {
- /* emit conditional to choose min image filter or mag image filter
- * depending on the lod being >0 or <= 0, respectively.
- */
- abort();
+ lp_build_endif(&if_ctx);
+
+ lp_build_flow_scope_end(flow_ctx);
+ lp_build_flow_destroy(flow_ctx);
}
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-16 14:14:43 +0000