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glsl: ir_texture support sprase texture

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Sparse ir_texture will set is_sparse and use struct type to
hold both residency code and sampled texel.

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Signed-off-by: Qiang Yu <yuq825@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/14362>
This commit is contained in:
Qiang Yu
2021-12-28 22:14:11 +08:00
parent 67b4c88512
commit dd84769c55
6 changed files with 60 additions and 22 deletions
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31
src/compiler/glsl/ir.h
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@@ -1878,30 +1878,30 @@ enum ir_texture_opcode {
* selected from \c ir_texture_opcodes. In the printed IR, these will
* appear as:
*
* Texel offset (0 or an expression)
* | Projection divisor
* | | Shadow comparator
* | | |
* v v v
* (tex <type> <sampler> <coordinate> 0 1 ( ))
* (txb <type> <sampler> <coordinate> 0 1 ( ) <bias>)
* (txl <type> <sampler> <coordinate> 0 1 ( ) <lod>)
* (txd <type> <sampler> <coordinate> 0 1 ( ) (dPdx dPdy))
* (txf <type> <sampler> <coordinate> 0 <lod>)
* Texel offset (0 or an expression)
* | Projection divisor
* | | Shadow comparator
* | | |
* v v v
* (tex <type> <sampler> <coordinate> <sparse> 0 1 ( ))
* (txb <type> <sampler> <coordinate> <sparse> 0 1 ( ) <bias>)
* (txl <type> <sampler> <coordinate> <sparse> 0 1 ( ) <lod>)
* (txd <type> <sampler> <coordinate> <sparse> 0 1 ( ) (dPdx dPdy))
* (txf <type> <sampler> <coordinate> <sparse> 0 <lod>)
* (txf_ms
* <type> <sampler> <coordinate> <sample_index>)
* <type> <sampler> <coordinate> <sparse> <sample_index>)
* (txs <type> <sampler> <lod>)
* (lod <type> <sampler> <coordinate>)
* (tg4 <type> <sampler> <coordinate> <offset> <component>)
* (tg4 <type> <sampler> <coordinate> <sparse> <offset> <component>)
* (query_levels <type> <sampler>)
* (samples_identical <sampler> <coordinate>)
*/
class ir_texture : public ir_rvalue {
public:
ir_texture(enum ir_texture_opcode op)
ir_texture(enum ir_texture_opcode op, bool sparse = false)
: ir_rvalue(ir_type_texture),
op(op), sampler(NULL), coordinate(NULL), projector(NULL),
shadow_comparator(NULL), offset(NULL)
shadow_comparator(NULL), offset(NULL), is_sparse(sparse)
{
memset(&lod_info, 0, sizeof(lod_info));
}
@@ -1972,6 +1972,9 @@ public:
ir_rvalue *dPdy; /**< Partial derivative of coordinate wrt Y */
} grad;
} lod_info;
/* Whether a sparse texture */
bool is_sparse;
};