vc4: Add #defines for the texture uniform fields.

I wanted to make another set of texture uploads for handling reladdr
constants, and duplicating all the bitshifting looked like a terrible
idea.  In the process, this fixes a swap of the s/t texture wrap modes.

2 files changed, 113 insertions, 19 deletions

diff --git a/src/gallium/drivers/vc4/vc4_packet.h b/src/gallium/drivers/vc4/vc4_packet.h
index a8b3566c5c6..e9abfd17314 100644
--- a/src/gallium/drivers/vc4/vc4_packet.h
+++ b/src/gallium/drivers/vc4/vc4_packet.h
@@ -81,6 +81,18 @@ enum vc4_packet {
         VC4_PACKET_GEM_HANDLES = 254,
 } __attribute__ ((__packed__));
 
+
+#define VC4_MASK(high, low) (((1 << ((high) - (low) + 1)) - 1) << (low))
+/* Using the GNU statement expression extension */
+#define VC4_SET_FIELD(value, field)                                       \
+        ({                                                                \
+                uint32_t fieldval = (value) << field ## _SHIFT;		  \
+                assert((fieldval & ~ field ## _MASK) == 0);               \
+                fieldval & field ## _MASK;                                \
+         })
+
+#define VC4_GET_FIELD(word, field) (((word)  & field ## _MASK) >> field ## _SHIFT)
+
 /** @{
  * Bits used by packets like VC4_PACKET_STORE_TILE_BUFFER_GENERAL and
  * VC4_PACKET_TILE_RENDERING_MODE_CONFIG.
@@ -244,4 +256,74 @@ enum vc4_texture_data_type {
         VC4_TEXTURE_TYPE_YUV422R = 17,
 };
 
+#define VC4_TEX_P0_OFFSET_MASK                     VC4_MASK(31, 12)
+#define VC4_TEX_P0_OFFSET_SHIFT                    12
+#define VC4_TEX_P0_CSWIZ_MASK                      VC4_MASK(11, 10)
+#define VC4_TEX_P0_CSWIZ_SHIFT                     10
+#define VC4_TEX_P0_CMMODE_MASK                     VC4_MASK(9, 9)
+#define VC4_TEX_P0_CMMODE_SHIFT                    9
+#define VC4_TEX_P0_FLIPY_MASK                      VC4_MASK(8, 8)
+#define VC4_TEX_P0_FLIPY_SHIFT                     8
+#define VC4_TEX_P0_TYPE_MASK                       VC4_MASK(7, 4)
+#define VC4_TEX_P0_TYPE_SHIFT                      4
+#define VC4_TEX_P0_MIPLVLS_MASK                    VC4_MASK(3, 0)
+#define VC4_TEX_P0_MIPLVLS_SHIFT                   0
+
+#define VC4_TEX_P1_TYPE4_MASK                      VC4_MASK(31, 31)
+#define VC4_TEX_P1_TYPE4_SHIFT                     31
+#define VC4_TEX_P1_HEIGHT_MASK                     VC4_MASK(30, 20)
+#define VC4_TEX_P1_HEIGHT_SHIFT                    20
+#define VC4_TEX_P1_ETCFLIP_MASK                    VC4_MASK(19, 19)
+#define VC4_TEX_P1_ETCFLIP_SHIFT                   19
+#define VC4_TEX_P1_WIDTH_MASK                      VC4_MASK(18, 8)
+#define VC4_TEX_P1_WIDTH_SHIFT                     8
+
+#define VC4_TEX_P1_MAGFILT_MASK                    VC4_MASK(7, 7)
+#define VC4_TEX_P1_MAGFILT_SHIFT                   7
+# define VC4_TEX_P1_MAGFILT_LINEAR                 0
+# define VC4_TEX_P1_MAGFILT_NEAREST                1
+
+#define VC4_TEX_P1_MINFILT_MASK                    VC4_MASK(6, 4)
+#define VC4_TEX_P1_MINFILT_SHIFT                   4
+# define VC4_TEX_P1_MINFILT_LINEAR                 0
+# define VC4_TEX_P1_MINFILT_NEAREST                1
+# define VC4_TEX_P1_MINFILT_NEAR_MIP_NEAR          2
+# define VC4_TEX_P1_MINFILT_NEAR_MIP_LIN           3
+# define VC4_TEX_P1_MINFILT_LIN_MIP_NEAR           4
+# define VC4_TEX_P1_MINFILT_LIN_MIP_LIN            5
+
+#define VC4_TEX_P1_WRAP_T_MASK                     VC4_MASK(3, 2)
+#define VC4_TEX_P1_WRAP_T_SHIFT                    2
+#define VC4_TEX_P1_WRAP_S_MASK                     VC4_MASK(1, 0)
+#define VC4_TEX_P1_WRAP_S_SHIFT                    0
+# define VC4_TEX_P1_WRAP_REPEAT                    0
+# define VC4_TEX_P1_WRAP_CLAMP                     1
+# define VC4_TEX_P1_WRAP_MIRROR                    2
+# define VC4_TEX_P1_WRAP_BORDER                    3
+
+#define VC4_TEX_P2_PTYPE_MASK                      VC4_MASK(31, 30)
+#define VC4_TEX_P2_PTYPE_SHIFT                     30
+# define VC4_TEX_P2_PTYPE_IGNORED                  0
+# define VC4_TEX_P2_PTYPE_CUBE_MAP_STRIDE          1
+# define VC4_TEX_P2_PTYPE_CHILD_IMAGE_DIMENSIONS   2
+# define VC4_TEX_P2_PTYPE_CHILD_IMAGE_OFFSETS      3
+
+/* VC4_TEX_P2_PTYPE_CUBE_MAP_STRIDE bits */
+#define VC4_TEX_P2_CMST_MASK                       VC4_MASK(29, 12)
+#define VC4_TEX_P2_CMST_SHIFT                      12
+#define VC4_TEX_P2_BSLOD_MASK                      VC4_MASK(0, 0)
+#define VC4_TEX_P2_BSLOD_SHIFT                     0
+
+/* VC4_TEX_P2_PTYPE_CHILD_IMAGE_DIMENSIONS */
+#define VC4_TEX_P2_CHEIGHT_MASK                    VC4_MASK(22, 12)
+#define VC4_TEX_P2_CHEIGHT_SHIFT                   12
+#define VC4_TEX_P2_CWIDTH_MASK                     VC4_MASK(10, 0)
+#define VC4_TEX_P2_CWIDTH_SHIFT                    0
+
+/* VC4_TEX_P2_PTYPE_CHILD_IMAGE_OFFSETS */
+#define VC4_TEX_P2_CYOFF_MASK                      VC4_MASK(22, 12)
+#define VC4_TEX_P2_CYOFF_SHIFT                     12
+#define VC4_TEX_P2_CXOFF_MASK                      VC4_MASK(10, 0)
+#define VC4_TEX_P2_CXOFF_SHIFT                     0
+
 #endif /* VC4_PACKET_H */
diff --git a/src/gallium/drivers/vc4/vc4_program.c b/src/gallium/drivers/vc4/vc4_program.c
index ec66dae7861..3995eccf54a 100644
--- a/src/gallium/drivers/vc4/vc4_program.c
+++ b/src/gallium/drivers/vc4/vc4_program.c
@@ -1997,12 +1997,12 @@ write_texture_p0(struct vc4_context *vc4,
         struct pipe_sampler_view *texture = texstate->textures[unit];
         struct vc4_resource *rsc = vc4_resource(texture->texture);
 
-        bool is_cube = texture->target == PIPE_TEXTURE_CUBE;
-
         cl_reloc(vc4, &vc4->uniforms, rsc->bo,
-                 rsc->slices[0].offset | texture->u.tex.last_level |
-                 is_cube << 9 |
-                 ((rsc->vc4_format & 7) << 4));
+                 VC4_SET_FIELD(rsc->slices[0].offset >> 12, VC4_TEX_P0_OFFSET) |
+                 VC4_SET_FIELD(texture->u.tex.last_level, VC4_TEX_P0_MIPLVLS) |
+                 VC4_SET_FIELD(texture->target == PIPE_TEXTURE_CUBE,
+                               VC4_TEX_P0_CMMODE) |
+                 VC4_SET_FIELD(rsc->vc4_format & 7, VC4_TEX_P0_TYPE));
 }
 
 static void
@@ -2014,13 +2014,16 @@ write_texture_p1(struct vc4_context *vc4,
         struct vc4_resource *rsc = vc4_resource(texture->texture);
         struct pipe_sampler_state *sampler = texstate->samplers[unit];
         static const uint8_t minfilter_map[6] = {
-                2, 4, /* mipfilter nearest */
-                3, 5, /* mipfilter linear */
-                1, 0, /* mipfilter none */
+                VC4_TEX_P1_MINFILT_NEAR_MIP_NEAR,
+                VC4_TEX_P1_MINFILT_LIN_MIP_NEAR,
+                VC4_TEX_P1_MINFILT_NEAR_MIP_LIN,
+                VC4_TEX_P1_MINFILT_LIN_MIP_LIN,
+                VC4_TEX_P1_MINFILT_NEAREST,
+                VC4_TEX_P1_MINFILT_LINEAR,
         };
         static const uint32_t magfilter_map[] = {
-                [PIPE_TEX_FILTER_NEAREST] = 1,
-                [PIPE_TEX_FILTER_LINEAR] = 0,
+                [PIPE_TEX_FILTER_NEAREST] = VC4_TEX_P1_MAGFILT_NEAREST,
+                [PIPE_TEX_FILTER_LINEAR] = VC4_TEX_P1_MAGFILT_LINEAR,
         };
 
         bool either_nearest =
@@ -2028,14 +2031,20 @@ write_texture_p1(struct vc4_context *vc4,
                  sampler->min_img_filter == PIPE_TEX_MIPFILTER_NEAREST);
 
         cl_u32(&vc4->uniforms,
-               ((rsc->vc4_format >> 4) << 31) |
-               (texture->texture->height0 << 20) |
-               (texture->texture->width0 << 8) |
-               (magfilter_map[sampler->mag_img_filter] << 7) |
-               (minfilter_map[sampler->min_mip_filter * 2 +
-                              sampler->min_img_filter] << 4) |
-               (translate_wrap(sampler->wrap_t, either_nearest) << 2) |
-               (translate_wrap(sampler->wrap_s, either_nearest) << 0));
+               VC4_SET_FIELD(rsc->vc4_format >> 4, VC4_TEX_P1_TYPE4) |
+               VC4_SET_FIELD(texture->texture->height0 & 2047,
+                             VC4_TEX_P1_HEIGHT) |
+               VC4_SET_FIELD(texture->texture->width0 & 2047,
+                             VC4_TEX_P1_WIDTH) |
+               VC4_SET_FIELD(magfilter_map[sampler->mag_img_filter],
+                             VC4_TEX_P1_MAGFILT) |
+               VC4_SET_FIELD(minfilter_map[sampler->min_mip_filter * 2 +
+                                           sampler->min_img_filter],
+                             VC4_TEX_P1_MINFILT) |
+               VC4_SET_FIELD(translate_wrap(sampler->wrap_s, either_nearest),
+                             VC4_TEX_P1_WRAP_S) |
+               VC4_SET_FIELD(translate_wrap(sampler->wrap_t, either_nearest),
+                             VC4_TEX_P1_WRAP_T));
 }
 
 static void
@@ -2046,7 +2055,10 @@ write_texture_p2(struct vc4_context *vc4,
         struct pipe_sampler_view *texture = texstate->textures[unit];
         struct vc4_resource *rsc = vc4_resource(texture->texture);
 
-        cl_u32(&vc4->uniforms, (1 << 30) | rsc->cube_map_stride);
+        cl_u32(&vc4->uniforms,
+               VC4_SET_FIELD(VC4_TEX_P2_PTYPE_CUBE_MAP_STRIDE,
+                             VC4_TEX_P2_PTYPE) |
+               VC4_SET_FIELD(rsc->cube_map_stride >> 12, VC4_TEX_P2_CMST));
 }