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gen7 depth surface: calculate minimum array element being rendered

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In layered rendering this will be 0. Otherwise it will be the
selected slice.

Signed-off-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Paul Berry <stereotype441@gmail.com>
This commit is contained in:
Jordan Justen 2013-07-09 15:24:56 -07:00
parent 08ef1dde1b
commit a23cfb8648
2 changed files with 17 additions and 0 deletions
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7
src/mesa/drivers/dri/i965/gen7_blorp.cpp
View file

@ -665,6 +665,7 @@ gen7_blorp_emit_depth_stencil_config(struct brw_context *brw,
uint8_t mocs = brw->is_haswell ? GEN7_MOCS_L3 : 0;
uint32_t surftype;
unsigned int depth = MAX2(params->depth.mt->logical_depth0, 1);
unsigned int min_array_element;
GLenum gl_target = params->depth.mt->target;
unsigned int lod;
@ -689,6 +690,12 @@ gen7_blorp_emit_depth_stencil_config(struct brw_context *brw,
break;
}
min_array_element = params->depth.layer;
if (params->depth.mt->num_samples > 1) {
/* Convert physical layer to logical layer. */
min_array_element /= params->depth.mt->num_samples;
}
lod = params->depth.level - params->depth.mt->first_level;
/* 3DSTATE_DEPTH_BUFFER */

10
src/mesa/drivers/dri/i965/gen7_misc_state.c
View file

@ -45,6 +45,7 @@ gen7_emit_depth_stencil_hiz(struct brw_context *brw,
struct gl_framebuffer *fb = ctx->DrawBuffer;
uint32_t surftype;
unsigned int depth = 1;
unsigned int min_array_element;
GLenum gl_target = GL_TEXTURE_2D;
unsigned int lod;
const struct intel_renderbuffer *irb = NULL;
@ -79,6 +80,15 @@ gen7_emit_depth_stencil_hiz(struct brw_context *brw,
break;
}
if (fb->Layered || !irb) {
min_array_element = 0;
} else if (irb->mt->num_samples > 1) {
/* Convert physical layer to logical layer. */
min_array_element = irb->mt_layer / irb->mt->num_samples;
} else {
min_array_element = irb->mt_layer;
}
lod = irb ? irb->mt_level - irb->mt->first_level : 0;
/* _NEW_DEPTH, _NEW_STENCIL, _NEW_BUFFERS */