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freedreno/a6xx: add support for gl_Layer in vertex shader

 4 years ago
source link: https://gitlab.freedesktop.org/mesa/mesa/-/commit/7fbdb6861bdc4594d09fb897e5c6726cdd1fdebb?merge_request_iid=7919
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Commit 7fbdb686

authored 3 months ago by

Danylo Piliaiev :speech_balloon:

freedreno/a6xx: add support for gl_Layer in vertex shader 

Passes amd_vertex_shader_layer-layered-2d-texture-render

Don't enable GL_AMD_vertex_shader_layer because we do not pass
amd_vertex_shader_layer-layered-depth-texture-render due to
the assert:

 emit_blit: Assertion `psurf->u.tex.first_layer == psurf->u.tex.last_layer'

However, in current state it is still useful for clearing
of arrayed framebuffers.
Signed-off-by: Danylo Piliaiev <[email protected]>
Part-of: <!7919>

1 merge request!7919freedreno/a6xx: support layered framebuffers in blitter_clear

This commit is part of merge request !7919. Comments created here will be created in the context of that merge request.

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......@@ -383,6 +383,7 @@ setup_stateobj(struct fd_ringbuffer *ring, struct fd_context *ctx,

psize_regid = ir3_find_output_regid(vs, VARYING_SLOT_PSIZ);

clip0_regid = ir3_find_output_regid(vs, VARYING_SLOT_CLIP_DIST0);

clip1_regid = ir3_find_output_regid(vs, VARYING_SLOT_CLIP_DIST1);

layer_regid = ir3_find_output_regid(vs, VARYING_SLOT_LAYER);

vertex_regid = ir3_find_sysval_regid(vs, SYSTEM_VALUE_VERTEX_ID);

instance_regid = ir3_find_sysval_regid(vs, SYSTEM_VALUE_INSTANCE_ID);

......@@ -416,7 +417,6 @@ setup_stateobj(struct fd_ringbuffer *ring, struct fd_context *ctx,

} else {

gs_header_regid = regid(63, 0);

primitive_regid = regid(63, 0);

layer_regid = regid(63, 0);

}

if (fs->color0_mrt) {

......@@ -740,6 +740,7 @@ setup_stateobj(struct fd_ringbuffer *ring, struct fd_context *ctx,

OUT_PKT4(ring, REG_A6XX_PC_VS_OUT_CNTL, 1);

OUT_RING(ring, A6XX_PC_VS_OUT_CNTL_STRIDE_IN_VPC(l.max_loc) |

CONDREG(psize_regid, A6XX_PC_VS_OUT_CNTL_PSIZE) |

CONDREG(layer_regid, A6XX_PC_VS_OUT_CNTL_LAYER) |

A6XX_PC_VS_OUT_CNTL_CLIP_MASK(clip_cull_mask));

OUT_PKT4(ring, REG_A6XX_PC_PRIMITIVE_CNTL_3, 1);

......@@ -776,7 +777,8 @@ setup_stateobj(struct fd_ringbuffer *ring, struct fd_context *ctx,

COND(fs->need_pixlod, A6XX_SP_FS_CTRL_REG0_PIXLODENABLE));

OUT_PKT4(ring, REG_A6XX_VPC_VS_LAYER_CNTL, 1);

OUT_RING(ring, 0x0000ffff); /* XXX */

OUT_RING(ring, A6XX_VPC_VS_LAYER_CNTL_LAYERLOC(layer_loc) |

A6XX_VPC_VS_LAYER_CNTL_VIEWLOC(0xff));

bool need_size = fs->frag_face || fs->fragcoord_compmask != 0;

bool need_size_persamp = false;

......@@ -928,6 +930,9 @@ setup_stateobj(struct fd_ringbuffer *ring, struct fd_context *ctx,

OUT_RING(ring, 0);

OUT_PKT4(ring, REG_A6XX_SP_GS_PRIM_SIZE, 1);

OUT_RING(ring, 0);

OUT_PKT4(ring, REG_A6XX_GRAS_VS_LAYER_CNTL, 1);

OUT_RING(ring, CONDREG(layer_regid, A6XX_GRAS_VS_LAYER_CNTL_WRITES_LAYER));

}

OUT_PKT4(ring, REG_A6XX_VPC_VS_CLIP_CNTL, 1);

......

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