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11 * The above copyright notice and this permission notice (including the next
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16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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25 #include "brw_compiler.h"
28 isl_is_storage_image_format(enum isl_format format
)
30 /* XXX: Maybe we should put this in the CSV? */
33 case ISL_FORMAT_R32G32B32A32_UINT
:
34 case ISL_FORMAT_R32G32B32A32_SINT
:
35 case ISL_FORMAT_R32G32B32A32_FLOAT
:
36 case ISL_FORMAT_R32_UINT
:
37 case ISL_FORMAT_R32_SINT
:
38 case ISL_FORMAT_R32_FLOAT
:
39 case ISL_FORMAT_R16G16B16A16_UINT
:
40 case ISL_FORMAT_R16G16B16A16_SINT
:
41 case ISL_FORMAT_R16G16B16A16_FLOAT
:
42 case ISL_FORMAT_R32G32_UINT
:
43 case ISL_FORMAT_R32G32_SINT
:
44 case ISL_FORMAT_R32G32_FLOAT
:
45 case ISL_FORMAT_R8G8B8A8_UINT
:
46 case ISL_FORMAT_R8G8B8A8_SINT
:
47 case ISL_FORMAT_R16G16_UINT
:
48 case ISL_FORMAT_R16G16_SINT
:
49 case ISL_FORMAT_R16G16_FLOAT
:
50 case ISL_FORMAT_R8G8_UINT
:
51 case ISL_FORMAT_R8G8_SINT
:
52 case ISL_FORMAT_R16_UINT
:
53 case ISL_FORMAT_R16_FLOAT
:
54 case ISL_FORMAT_R16_SINT
:
55 case ISL_FORMAT_R8_UINT
:
56 case ISL_FORMAT_R8_SINT
:
57 case ISL_FORMAT_R10G10B10A2_UINT
:
58 case ISL_FORMAT_R10G10B10A2_UNORM
:
59 case ISL_FORMAT_R11G11B10_FLOAT
:
60 case ISL_FORMAT_R16G16B16A16_UNORM
:
61 case ISL_FORMAT_R16G16B16A16_SNORM
:
62 case ISL_FORMAT_R8G8B8A8_UNORM
:
63 case ISL_FORMAT_R8G8B8A8_SNORM
:
64 case ISL_FORMAT_R16G16_UNORM
:
65 case ISL_FORMAT_R16G16_SNORM
:
66 case ISL_FORMAT_R8G8_UNORM
:
67 case ISL_FORMAT_R8G8_SNORM
:
68 case ISL_FORMAT_R16_UNORM
:
69 case ISL_FORMAT_R16_SNORM
:
70 case ISL_FORMAT_R8_UNORM
:
71 case ISL_FORMAT_R8_SNORM
:
79 isl_lower_storage_image_format(const struct isl_device
*dev
,
80 enum isl_format format
)
83 /* These are never lowered. Up to BDW we'll have to fall back to untyped
84 * surface access for 128bpp formats.
86 case ISL_FORMAT_R32G32B32A32_UINT
:
87 case ISL_FORMAT_R32G32B32A32_SINT
:
88 case ISL_FORMAT_R32G32B32A32_FLOAT
:
89 case ISL_FORMAT_R32_UINT
:
90 case ISL_FORMAT_R32_SINT
:
91 case ISL_FORMAT_R32_FLOAT
:
94 /* From HSW to BDW the only 64bpp format supported for typed access is
95 * RGBA_UINT16. IVB falls back to untyped.
97 case ISL_FORMAT_R16G16B16A16_UINT
:
98 case ISL_FORMAT_R16G16B16A16_SINT
:
99 case ISL_FORMAT_R16G16B16A16_FLOAT
:
100 case ISL_FORMAT_R32G32_UINT
:
101 case ISL_FORMAT_R32G32_SINT
:
102 case ISL_FORMAT_R32G32_FLOAT
:
103 return (ISL_DEV_GEN(dev
) >= 9 ? format
:
104 ISL_DEV_GEN(dev
) >= 8 || dev
->info
->is_haswell
?
105 ISL_FORMAT_R16G16B16A16_UINT
:
106 ISL_FORMAT_R32G32_UINT
);
108 /* Up to BDW no SINT or FLOAT formats of less than 32 bits per component
109 * are supported. IVB doesn't support formats with more than one component
110 * for typed access. For 8 and 16 bpp formats IVB relies on the
111 * undocumented behavior that typed reads from R_UINT8 and R_UINT16
112 * surfaces actually do a 32-bit misaligned read. The alternative would be
113 * to use two surface state entries with different formats for each image,
114 * one for reading (using R_UINT32) and another one for writing (using
115 * R_UINT8 or R_UINT16), but that would complicate the shaders we generate
118 case ISL_FORMAT_R8G8B8A8_UINT
:
119 case ISL_FORMAT_R8G8B8A8_SINT
:
120 return (ISL_DEV_GEN(dev
) >= 9 ? format
:
121 ISL_DEV_GEN(dev
) >= 8 || dev
->info
->is_haswell
?
122 ISL_FORMAT_R8G8B8A8_UINT
: ISL_FORMAT_R32_UINT
);
124 case ISL_FORMAT_R16G16_UINT
:
125 case ISL_FORMAT_R16G16_SINT
:
126 case ISL_FORMAT_R16G16_FLOAT
:
127 return (ISL_DEV_GEN(dev
) >= 9 ? format
:
128 ISL_DEV_GEN(dev
) >= 8 || dev
->info
->is_haswell
?
129 ISL_FORMAT_R16G16_UINT
: ISL_FORMAT_R32_UINT
);
131 case ISL_FORMAT_R8G8_UINT
:
132 case ISL_FORMAT_R8G8_SINT
:
133 return (ISL_DEV_GEN(dev
) >= 9 ? format
:
134 ISL_DEV_GEN(dev
) >= 8 || dev
->info
->is_haswell
?
135 ISL_FORMAT_R8G8_UINT
: ISL_FORMAT_R16_UINT
);
137 case ISL_FORMAT_R16_UINT
:
138 case ISL_FORMAT_R16_FLOAT
:
139 case ISL_FORMAT_R16_SINT
:
140 return (ISL_DEV_GEN(dev
) >= 9 ? format
: ISL_FORMAT_R16_UINT
);
142 case ISL_FORMAT_R8_UINT
:
143 case ISL_FORMAT_R8_SINT
:
144 return (ISL_DEV_GEN(dev
) >= 9 ? format
: ISL_FORMAT_R8_UINT
);
146 /* Neither the 2/10/10/10 nor the 11/11/10 packed formats are supported
149 case ISL_FORMAT_R10G10B10A2_UINT
:
150 case ISL_FORMAT_R10G10B10A2_UNORM
:
151 case ISL_FORMAT_R11G11B10_FLOAT
:
152 return ISL_FORMAT_R32_UINT
;
154 /* No normalized fixed-point formats are supported by the hardware. */
155 case ISL_FORMAT_R16G16B16A16_UNORM
:
156 case ISL_FORMAT_R16G16B16A16_SNORM
:
157 return (ISL_DEV_GEN(dev
) >= 8 || dev
->info
->is_haswell
?
158 ISL_FORMAT_R16G16B16A16_UINT
:
159 ISL_FORMAT_R32G32_UINT
);
161 case ISL_FORMAT_R8G8B8A8_UNORM
:
162 case ISL_FORMAT_R8G8B8A8_SNORM
:
163 return (ISL_DEV_GEN(dev
) >= 8 || dev
->info
->is_haswell
?
164 ISL_FORMAT_R8G8B8A8_UINT
: ISL_FORMAT_R32_UINT
);
166 case ISL_FORMAT_R16G16_UNORM
:
167 case ISL_FORMAT_R16G16_SNORM
:
168 return (ISL_DEV_GEN(dev
) >= 8 || dev
->info
->is_haswell
?
169 ISL_FORMAT_R16G16_UINT
: ISL_FORMAT_R32_UINT
);
171 case ISL_FORMAT_R8G8_UNORM
:
172 case ISL_FORMAT_R8G8_SNORM
:
173 return (ISL_DEV_GEN(dev
) >= 8 || dev
->info
->is_haswell
?
174 ISL_FORMAT_R8G8_UINT
: ISL_FORMAT_R16_UINT
);
176 case ISL_FORMAT_R16_UNORM
:
177 case ISL_FORMAT_R16_SNORM
:
178 return ISL_FORMAT_R16_UINT
;
180 case ISL_FORMAT_R8_UNORM
:
181 case ISL_FORMAT_R8_SNORM
:
182 return ISL_FORMAT_R8_UINT
;
185 assert(!"Unknown image format");
186 return ISL_FORMAT_UNSUPPORTED
;