shader->info.name = ralloc_asprintf(shader, "GLSL%d", shader_prog->Name);
if (shader_prog->Label)
shader->info.label = ralloc_strdup(shader, shader_prog->Label);
- shader->info.num_textures = _mesa_fls(sh->Program->SamplersUsed);
+ shader->info.num_textures = util_last_bit(sh->Program->SamplersUsed);
shader->info.num_ubos = sh->NumUniformBlocks;
shader->info.num_abos = shader_prog->NumAtomicBuffers;
shader->info.num_ssbos = sh->NumShaderStorageBlocks;
}
-/**
- * Find last bit set in a word. The least significant bit is 1.
- * Return 0 if no bits are set.
- */
-static inline unsigned
-util_last_bit(unsigned u)
-{
-#if defined(HAVE___BUILTIN_CLZ)
- return u == 0 ? 0 : 32 - __builtin_clz(u);
-#else
- unsigned r = 0;
- while (u) {
- r++;
- u >>= 1;
- }
- return r;
-#endif
-}
-
-/**
- * Find last bit set in a word. The least significant bit is 1.
- * Return 0 if no bits are set.
- */
-static inline unsigned
-util_last_bit64(uint64_t u)
-{
-#if defined(HAVE___BUILTIN_CLZLL)
- return u == 0 ? 0 : 64 - __builtin_clzll(u);
-#else
- unsigned r = 0;
- while (u) {
- r++;
- u >>= 1;
- }
- return r;
-#endif
-}
-
-/**
- * Find last bit in a word that does not match the sign bit. The least
- * significant bit is 1.
- * Return 0 if no bits are set.
- */
-static inline unsigned
-util_last_bit_signed(int i)
-{
- if (i >= 0)
- return util_last_bit(i);
- else
- return util_last_bit(~(unsigned)i);
-}
-
-/* Returns a bitfield in which the first count bits starting at start are
- * set.
- */
-static inline unsigned
-u_bit_consecutive(unsigned start, unsigned count)
-{
- assert(start + count <= 32);
- if (count == 32)
- return ~0;
- return ((1u << count) - 1) << start;
-}
-
/**
* Return float bits.
*/
return;
brw->cs.base.sampler_count =
- _mesa_fls(ctx->ComputeProgram._Current->Base.SamplersUsed);
+ util_last_bit(ctx->ComputeProgram._Current->Base.SamplersUsed);
brw_cs_populate_key(brw, &key);
* index.
*/
brw->wm.base.sampler_count =
- _mesa_fls(ctx->FragmentProgram._Current->Base.SamplersUsed);
+ util_last_bit(ctx->FragmentProgram._Current->Base.SamplersUsed);
brw->gs.base.sampler_count = ctx->GeometryProgram._Current ?
- _mesa_fls(ctx->GeometryProgram._Current->Base.SamplersUsed) : 0;
+ util_last_bit(ctx->GeometryProgram._Current->Base.SamplersUsed) : 0;
brw->tes.base.sampler_count = ctx->TessEvalProgram._Current ?
- _mesa_fls(ctx->TessEvalProgram._Current->Base.SamplersUsed) : 0;
+ util_last_bit(ctx->TessEvalProgram._Current->Base.SamplersUsed) : 0;
brw->tcs.base.sampler_count = ctx->TessCtrlProgram._Current ?
- _mesa_fls(ctx->TessCtrlProgram._Current->Base.SamplersUsed) : 0;
+ util_last_bit(ctx->TessCtrlProgram._Current->Base.SamplersUsed) : 0;
brw->vs.base.sampler_count =
- _mesa_fls(ctx->VertexProgram._Current->Base.SamplersUsed);
+ util_last_bit(ctx->VertexProgram._Current->Base.SamplersUsed);
intel_prepare_render(brw);
brw_predraw_set_aux_buffers(brw);
fs_reg prev_count = bld.vgrf(BRW_REGISTER_TYPE_UD, 1);
abld.ADD(prev_count, vertex_count, brw_imm_ud(0xffffffffu));
unsigned log2_bits_per_vertex =
- _mesa_fls(gs_compile->control_data_bits_per_vertex);
+ util_last_bit(gs_compile->control_data_bits_per_vertex);
abld.SHR(dword_index, prev_count, brw_imm_ud(6u - log2_bits_per_vertex));
if (per_slot_offset.file != BAD_FILE) {
if (mask == 0)
break;
- unsigned num_components = _mesa_fls(mask);
+ unsigned num_components = util_last_bit(mask);
enum opcode opcode;
/* We can only pack two 64-bit components in a single message, so send
nir_ssa_def_components_read(&instr->dest.ssa):
(1 << dest_size) - 1;
assert(write_mask != 0); /* dead code should have been eliminated */
- inst->regs_written = _mesa_fls(write_mask) * dispatch_width / 8;
+ inst->regs_written = util_last_bit(write_mask) * dispatch_width / 8;
} else {
inst->regs_written = 4 * dispatch_width / 8;
}
struct gl_program *prog)
{
const bool has_shader_channel_select = brw->is_haswell || brw->gen >= 8;
- unsigned sampler_count = _mesa_fls(prog->SamplersUsed);
+ unsigned sampler_count = util_last_bit(prog->SamplersUsed);
for (unsigned i = 0; i < sampler_count; i++) {
if (!has_shader_channel_select && (prog->ShadowSamplers & (1 << i))) {
/* Assume DEPTH_TEXTURE_MODE is the default: X, X, X, 1 */
uint32_t next_binding_table_offset)
{
const struct gl_linked_shader *shader = NULL;
- int num_textures = _mesa_fls(prog->SamplersUsed);
+ int num_textures = util_last_bit(prog->SamplersUsed);
if (shader_prog)
shader = shader_prog->_LinkedShaders[stage];
emit(ADD(dst_reg(prev_count), this->vertex_count,
brw_imm_ud(0xffffffffu)));
unsigned log2_bits_per_vertex =
- _mesa_fls(c->control_data_bits_per_vertex);
+ util_last_bit(c->control_data_bits_per_vertex);
emit(SHR(dst_reg(dword_index), prev_count,
brw_imm_ud(6 - log2_bits_per_vertex)));
}
else
surf_offset += stage_state->prog_data->binding_table.plane_start[plane];
- unsigned num_samplers = _mesa_fls(prog->SamplersUsed);
+ unsigned num_samplers = util_last_bit(prog->SamplersUsed);
for (unsigned s = 0; s < num_samplers; s++) {
surf_offset[s] = 0;
_mesa_bitcount_64(uint64_t n);
#endif
-/**
- * Find the last (most significant) bit set in a word.
- *
- * Essentially ffs() in the reverse direction.
- */
-static inline unsigned int
-_mesa_fls(unsigned int n)
-{
-#ifdef HAVE___BUILTIN_CLZ
- return n == 0 ? 0 : 32 - __builtin_clz(n);
-#else
- unsigned int v = 1;
-
- if (n == 0)
- return 0;
-
- while (n >>= 1)
- v++;
-
- return v;
-#endif
-}
-
-/**
- * Find the last (most significant) bit set in a uint64_t value.
- *
- * Essentially ffsll() in the reverse direction.
- */
-static inline unsigned int
-_mesa_flsll(uint64_t n)
-{
-#ifdef HAVE___BUILTIN_CLZLL
- return n == 0 ? 0 : 64 - __builtin_clzll(n);
-#else
- unsigned int v = 1;
-
- if (n == 0)
- return 0;
-
- while (n >>= 1)
- v++;
-
- return v;
-#endif
-}
static inline bool
_mesa_half_is_negative(GLhalfARB h)
struct nir_shader *shader = b->shader;
/* Create input variables. */
- const int num_inputs = _mesa_flsll(c->prog->InputsRead);
+ const int num_inputs = util_last_bit64(c->prog->InputsRead);
for (int i = 0; i < num_inputs; i++) {
if (!(c->prog->InputsRead & BITFIELD64_BIT(i)))
continue;
}
/* Create output registers and variables. */
- int max_outputs = _mesa_fls(c->prog->OutputsWritten);
+ int max_outputs = util_last_bit(c->prog->OutputsWritten);
c->output_regs = rzalloc_array(c, nir_register *, max_outputs);
for (int i = 0; i < max_outputs; i++) {
ptn_add_output_stores(c);
s->info.name = ralloc_asprintf(s, "ARB%d", prog->Id);
- s->info.num_textures = _mesa_fls(prog->SamplersUsed);
+ s->info.num_textures = util_last_bit(prog->SamplersUsed);
s->info.num_ubos = 0;
s->info.num_abos = 0;
s->info.num_ssbos = 0;
#ifndef BITSCAN_H
#define BITSCAN_H
+#include <assert.h>
#include <stdint.h>
#if defined(_MSC_VER)
}
+/**
+ * Find last bit set in a word. The least significant bit is 1.
+ * Return 0 if no bits are set.
+ * Essentially ffs() in the reverse direction.
+ */
+static inline unsigned
+util_last_bit(unsigned u)
+{
+#if defined(HAVE___BUILTIN_CLZ)
+ return u == 0 ? 0 : 32 - __builtin_clz(u);
+#else
+ unsigned r = 0;
+ while (u) {
+ r++;
+ u >>= 1;
+ }
+ return r;
+#endif
+}
+
+/**
+ * Find last bit set in a word. The least significant bit is 1.
+ * Return 0 if no bits are set.
+ * Essentially ffsll() in the reverse direction.
+ */
+static inline unsigned
+util_last_bit64(uint64_t u)
+{
+#if defined(HAVE___BUILTIN_CLZLL)
+ return u == 0 ? 0 : 64 - __builtin_clzll(u);
+#else
+ unsigned r = 0;
+ while (u) {
+ r++;
+ u >>= 1;
+ }
+ return r;
+#endif
+}
+
+/**
+ * Find last bit in a word that does not match the sign bit. The least
+ * significant bit is 1.
+ * Return 0 if no bits are set.
+ */
+static inline unsigned
+util_last_bit_signed(int i)
+{
+ if (i >= 0)
+ return util_last_bit(i);
+ else
+ return util_last_bit(~(unsigned)i);
+}
+
+/* Returns a bitfield in which the first count bits starting at start are
+ * set.
+ */
+static inline unsigned
+u_bit_consecutive(unsigned start, unsigned count)
+{
+ assert(start + count <= 32);
+ if (count == 32)
+ return ~0;
+ return ((1u << count) - 1) << start;
+}
+
+
#ifdef __cplusplus
}
#endif
projects / mesa.git / commitdiff