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i965: Cite the Ivybridge PRM for multisample surface format notes. 

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
This commit is contained in:
Kenneth Graunke 2013-07-10 13:27:40 -07:00
parent 43ea434225
commit 2e928e2a3f
1 changed files with 9 additions and 13 deletions
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22
src/mesa/drivers/dri/i965/gen7_wm_surface_state.c
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@ -148,9 +148,8 @@ gen7_check_surface_setup(uint32_t *surf, bool is_render_target)
(void) surface_array_spacing;
/* From the Graphics BSpec: vol5c Shared Functions [SNB+] > State >
* SURFACE_STATE > SURFACE_STATE for most messages [DevIVB]: Surface Array
* Spacing:
/* From the Ivybridge PRM, Volume 4 Part 1, page 66 (RENDER_SURFACE_STATE
* dword 0 bit 10 "Surface Array Spacing" Programming Notes):
*
* If Multisampled Surface Storage Format is MSFMT_MSS and Number of
* Multisamples is not MULTISAMPLECOUNT_1, this field must be set to
@ -160,9 +159,8 @@ gen7_check_surface_setup(uint32_t *surf, bool is_render_target)
&& is_multisampled)
assert(surface_array_spacing == GEN7_SURFACE_ARYSPC_LOD0);
/* From the Graphics BSpec: vol5c Shared Functions [SNB+] > State >
* SURFACE_STATE > SURFACE_STATE for most messages [DevIVB]: Multisampled
* Surface Storage Format:
/* From the Ivybridge PRM, Volume 4 Part 1, page 72 (RENDER_SURFACE_STATE
* dword 4 bit 6 "Multisampled Surface Storage" Programming Notes):
*
* All multisampled render target surfaces must have this field set to
* MSFMT_MSS.
@ -175,9 +173,8 @@ gen7_check_surface_setup(uint32_t *surf, bool is_render_target)
assert(multisampled_surface_storage_format == GEN7_SURFACE_MSFMT_MSS);
}
/* From the Graphics BSpec: vol5c Shared Functions [SNB+] > State >
* SURFACE_STATE > SURFACE_STATE for most messages [DevIVB]: Multisampled
* Surface Storage Format:
/* From the Ivybridge PRM, Volume 4 Part 1, page 72 (RENDER_SURFACE_STATE
* dword 4 bit 6 "Multisampled Surface Storage Format" Errata):
*
* If the surface’s Number of Multisamples is MULTISAMPLECOUNT_8, Width
* is >= 8192 (meaning the actual surface width is >= 8193 pixels), this
@ -188,9 +185,8 @@ gen7_check_surface_setup(uint32_t *surf, bool is_render_target)
assert(multisampled_surface_storage_format == GEN7_SURFACE_MSFMT_MSS);
}
/* From the Graphics BSpec: vol5c Shared Functions [SNB+] > State >
* SURFACE_STATE > SURFACE_STATE for most messages [DevIVB]: Multisampled
* Surface Storage Format:
/* From the Ivybridge PRM, Volume 4 Part 1, page 72 (RENDER_SURFACE_STATE
* dword 4 bit 6 "Multisampled Surface Storage Format" Errata):
*
* If the surface’s Number of Multisamples is MULTISAMPLECOUNT_8,
* ((Depth+1) * (Height+1)) is > 4,194,304, OR if the surface’s Number of
@ -200,7 +196,7 @@ gen7_check_surface_setup(uint32_t *surf, bool is_render_target)
* following: I24X8_UNORM, L24X8_UNORM, A24X8_UNORM, or
* R24_UNORM_X8_TYPELESS.
*
* But also:
* But also (from the Programming Notes):
*
* This field is ignored if Number of Multisamples is MULTISAMPLECOUNT_1.
*/