#include "nir.h"
#include "nir_builder.h"
+#include "nir_builtin_builder.h"
#include "nir_format_convert.h"
static bool
return true;
}
-static nir_ssa_def *
-get_texture_size(nir_builder *b, nir_tex_instr *tex)
-{
- b->cursor = nir_before_instr(&tex->instr);
-
- nir_tex_instr *txs;
-
- unsigned num_srcs = 1; /* One for the LOD */
- for (unsigned i = 0; i < tex->num_srcs; i++) {
- if (tex->src[i].src_type == nir_tex_src_texture_deref ||
- tex->src[i].src_type == nir_tex_src_sampler_deref ||
- tex->src[i].src_type == nir_tex_src_texture_offset ||
- tex->src[i].src_type == nir_tex_src_sampler_offset ||
- tex->src[i].src_type == nir_tex_src_texture_handle ||
- tex->src[i].src_type == nir_tex_src_sampler_handle)
- num_srcs++;
- }
-
- txs = nir_tex_instr_create(b->shader, num_srcs);
- txs->op = nir_texop_txs;
- txs->sampler_dim = tex->sampler_dim;
- txs->is_array = tex->is_array;
- txs->is_shadow = tex->is_shadow;
- txs->is_new_style_shadow = tex->is_new_style_shadow;
- txs->texture_index = tex->texture_index;
- txs->sampler_index = tex->sampler_index;
- txs->dest_type = nir_type_int;
-
- unsigned idx = 0;
- for (unsigned i = 0; i < tex->num_srcs; i++) {
- if (tex->src[i].src_type == nir_tex_src_texture_deref ||
- tex->src[i].src_type == nir_tex_src_sampler_deref ||
- tex->src[i].src_type == nir_tex_src_texture_offset ||
- tex->src[i].src_type == nir_tex_src_sampler_offset ||
- tex->src[i].src_type == nir_tex_src_texture_handle ||
- tex->src[i].src_type == nir_tex_src_sampler_handle) {
- nir_src_copy(&txs->src[idx].src, &tex->src[i].src, txs);
- txs->src[idx].src_type = tex->src[i].src_type;
- idx++;
- }
- }
- /* Add in an LOD because some back-ends require it */
- txs->src[idx].src = nir_src_for_ssa(nir_imm_int(b, 0));
- txs->src[idx].src_type = nir_tex_src_lod;
-
- nir_ssa_dest_init(&txs->instr, &txs->dest,
- nir_tex_instr_dest_size(txs), 32, NULL);
- nir_builder_instr_insert(b, &txs->instr);
-
- return nir_i2f32(b, &txs->dest.ssa);
-}
-
-static nir_ssa_def *
-get_texture_lod(nir_builder *b, nir_tex_instr *tex)
-{
- b->cursor = nir_before_instr(&tex->instr);
-
- nir_tex_instr *tql;
-
- unsigned num_srcs = 0;
- for (unsigned i = 0; i < tex->num_srcs; i++) {
- if (tex->src[i].src_type == nir_tex_src_coord ||
- tex->src[i].src_type == nir_tex_src_texture_deref ||
- tex->src[i].src_type == nir_tex_src_sampler_deref ||
- tex->src[i].src_type == nir_tex_src_texture_offset ||
- tex->src[i].src_type == nir_tex_src_sampler_offset ||
- tex->src[i].src_type == nir_tex_src_texture_handle ||
- tex->src[i].src_type == nir_tex_src_sampler_handle)
- num_srcs++;
- }
-
- tql = nir_tex_instr_create(b->shader, num_srcs);
- tql->op = nir_texop_lod;
- tql->coord_components = tex->coord_components;
- tql->sampler_dim = tex->sampler_dim;
- tql->is_array = tex->is_array;
- tql->is_shadow = tex->is_shadow;
- tql->is_new_style_shadow = tex->is_new_style_shadow;
- tql->texture_index = tex->texture_index;
- tql->sampler_index = tex->sampler_index;
- tql->dest_type = nir_type_float;
-
- unsigned idx = 0;
- for (unsigned i = 0; i < tex->num_srcs; i++) {
- if (tex->src[i].src_type == nir_tex_src_coord ||
- tex->src[i].src_type == nir_tex_src_texture_deref ||
- tex->src[i].src_type == nir_tex_src_sampler_deref ||
- tex->src[i].src_type == nir_tex_src_texture_offset ||
- tex->src[i].src_type == nir_tex_src_sampler_offset ||
- tex->src[i].src_type == nir_tex_src_texture_handle ||
- tex->src[i].src_type == nir_tex_src_sampler_handle) {
- nir_src_copy(&tql->src[idx].src, &tex->src[i].src, tql);
- tql->src[idx].src_type = tex->src[i].src_type;
- idx++;
- }
- }
-
- nir_ssa_dest_init(&tql->instr, &tql->dest, 2, 32, NULL);
- nir_builder_instr_insert(b, &tql->instr);
-
- /* The LOD is the y component of the result */
- return nir_channel(b, &tql->dest.ssa, 1);
-}
-
static bool
lower_offset(nir_builder *b, nir_tex_instr *tex)
{
if (tex->sampler_dim == GLSL_SAMPLER_DIM_RECT) {
offset_coord = nir_fadd(b, coord, nir_i2f32(b, offset));
} else {
- nir_ssa_def *txs = get_texture_size(b, tex);
+ nir_ssa_def *txs = nir_i2f32(b, nir_get_texture_size(b, tex));
nir_ssa_def *scale = nir_frcp(b, txs);
offset_coord = nir_fadd(b, coord,
*/
tex->sampler_dim = GLSL_SAMPLER_DIM_2D;
- nir_ssa_def *txs = get_texture_size(b, tex);
+ nir_ssa_def *txs = nir_i2f32(b, nir_get_texture_size(b, tex));
nir_ssa_def *scale = nir_frcp(b, txs);
/* Walk through the sources normalizing the requested arguments. */
b->cursor = nir_before_instr(&tex->instr);
- nir_ssa_def *lod = get_texture_lod(b, tex);
+ nir_ssa_def *lod = nir_get_texture_lod(b, tex);
int bias_idx = nir_tex_instr_src_index(tex, nir_tex_src_bias);
if (bias_idx >= 0) {
assert(tex->dest.is_ssa);
/* Use textureSize() to get the width and height of LOD 0 */
- nir_ssa_def *size = get_texture_size(b, tex);
+ nir_ssa_def *size = nir_i2f32(b, nir_get_texture_size(b, tex));
/* Cubemap texture lookups first generate a texture coordinate normalized
* to [-1, 1] on the appropiate face. The appropiate face is determined
}
nir_ssa_def *size =
- nir_channels(b, get_texture_size(b, tex), component_mask);
+ nir_channels(b, nir_i2f32(b, nir_get_texture_size(b, tex)),
+ component_mask);
/* Scale the gradients by width and height. Effectively, the incoming
* gradients are s'(x,y), t'(x,y), and r'(x,y) from equation 3.19 in the
/* non-normalized texture coords, so clamp to texture
* size rather than [0.0, 1.0]
*/
- nir_ssa_def *txs = get_texture_size(b, tex);
+ nir_ssa_def *txs = nir_i2f32(b, nir_get_texture_size(b, tex));
comp[j] = nir_fmax(b, comp[j], nir_imm_float(b, 0.0));
comp[j] = nir_fmin(b, comp[j], nir_channel(b, txs, j));
} else {
if (tex->is_array) {
nir_ssa_def *comp[3];
+ assert(dest_size <= ARRAY_SIZE(comp));
for (unsigned i = 0; i < dest_size - 1; i++)
comp[i] = nir_channel(b, minified, i);
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