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nir: add pass to lower fb reads

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Signed-off-by: Rob Clark <robdclark@chromium.org>
Reviewed-by: Kristian H. Kristensen <hoegsberg@google.com>
This commit is contained in:
Rob Clark
2019-04-26 10:05:08 -07:00
parent a2c89a85f4
commit a99c360a46
5 changed files with 141 additions and 6 deletions
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7
src/compiler/nir/nir.h
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@@ -1444,7 +1444,8 @@ typedef enum {
nir_texop_txl, /**< Texture look-up with explicit LOD */
nir_texop_txd, /**< Texture look-up with partial derivatives */
nir_texop_txf, /**< Texel fetch with explicit LOD */
nir_texop_txf_ms, /**< Multisample texture fetch */
nir_texop_txf_ms, /**< Multisample texture fetch */
nir_texop_txf_ms_fb, /**< Multisample texture fetch from framebuffer */
nir_texop_txf_ms_mcs, /**< Multisample compression value fetch */
nir_texop_txs, /**< Texture size */
nir_texop_lod, /**< Texture lod query */
@@ -1579,6 +1580,7 @@ nir_tex_instr_is_query(const nir_tex_instr *instr)
case nir_texop_txd:
case nir_texop_txf:
case nir_texop_txf_ms:
case nir_texop_txf_ms_fb:
case nir_texop_tg4:
return false;
default:
@@ -1618,6 +1620,7 @@ nir_tex_instr_src_type(const nir_tex_instr *instr, unsigned src)
switch (instr->op) {
case nir_texop_txf:
case nir_texop_txf_ms:
case nir_texop_txf_ms_fb:
case nir_texop_txf_ms_mcs:
case nir_texop_samples_identical:
return nir_type_int;
@@ -3394,6 +3397,8 @@ bool nir_lower_wpos_ytransform(nir_shader *shader,
const nir_lower_wpos_ytransform_options *options);
bool nir_lower_wpos_center(nir_shader *shader, const bool for_sample_shading);
bool nir_lower_fb_read(nir_shader *shader);
typedef struct nir_lower_drawpixels_options {
gl_state_index16 texcoord_state_tokens[STATE_LENGTH];
gl_state_index16 scale_state_tokens[STATE_LENGTH];