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Diffstat (limited to 'src/gallium/drivers/nvfx/nv40_fragtex.c')
-rw-r--r--src/gallium/drivers/nvfx/nv40_fragtex.c176
1 files changed, 176 insertions, 0 deletions
diff --git a/src/gallium/drivers/nvfx/nv40_fragtex.c b/src/gallium/drivers/nvfx/nv40_fragtex.c
new file mode 100644
index 00000000000..0068b1ba54a
--- /dev/null
+++ b/src/gallium/drivers/nvfx/nv40_fragtex.c
@@ -0,0 +1,176 @@
+#include "util/u_format.h"
+#include "nvfx_context.h"
+#include "nvfx_tex.h"
+#include "nvfx_resource.h"
+
+void
+nv40_sampler_state_init(struct pipe_context *pipe,
+ struct nvfx_sampler_state *ps,
+ const struct pipe_sampler_state *cso)
+{
+ if (cso->max_anisotropy >= 2) {
+ /* no idea, binary driver sets it, works without it.. meh.. */
+ ps->wrap |= (1 << 5);
+
+ if (cso->max_anisotropy >= 16) {
+ ps->en |= NV40TCL_TEX_ENABLE_ANISO_16X;
+ } else
+ if (cso->max_anisotropy >= 12) {
+ ps->en |= NV40TCL_TEX_ENABLE_ANISO_12X;
+ } else
+ if (cso->max_anisotropy >= 10) {
+ ps->en |= NV40TCL_TEX_ENABLE_ANISO_10X;
+ } else
+ if (cso->max_anisotropy >= 8) {
+ ps->en |= NV40TCL_TEX_ENABLE_ANISO_8X;
+ } else
+ if (cso->max_anisotropy >= 6) {
+ ps->en |= NV40TCL_TEX_ENABLE_ANISO_6X;
+ } else
+ if (cso->max_anisotropy >= 4) {
+ ps->en |= NV40TCL_TEX_ENABLE_ANISO_4X;
+ } else {
+ ps->en |= NV40TCL_TEX_ENABLE_ANISO_2X;
+ }
+ }
+
+ {
+ float limit;
+
+ limit = CLAMP(cso->lod_bias, -16.0, 15.0);
+ ps->filt |= (int)(cso->lod_bias * 256.0) & 0x1fff;
+
+ limit = CLAMP(cso->max_lod, 0.0, 15.0);
+ ps->en |= (int)(limit * 256.0) << 7;
+
+ limit = CLAMP(cso->min_lod, 0.0, 15.0);
+ ps->en |= (int)(limit * 256.0) << 19;
+ }
+}
+
+#define _(m,tf,ts0x,ts0y,ts0z,ts0w,ts1x,ts1y,ts1z,ts1w,sx,sy,sz,sw) \
+{ \
+ TRUE, \
+ PIPE_FORMAT_##m, \
+ NV40TCL_TEX_FORMAT_FORMAT_##tf, \
+ (NV34TCL_TX_SWIZZLE_S0_X_##ts0x | NV34TCL_TX_SWIZZLE_S0_Y_##ts0y | \
+ NV34TCL_TX_SWIZZLE_S0_Z_##ts0z | NV34TCL_TX_SWIZZLE_S0_W_##ts0w | \
+ NV34TCL_TX_SWIZZLE_S1_X_##ts1x | NV34TCL_TX_SWIZZLE_S1_Y_##ts1y | \
+ NV34TCL_TX_SWIZZLE_S1_Z_##ts1z | NV34TCL_TX_SWIZZLE_S1_W_##ts1w), \
+ ((NV34TCL_TX_FILTER_SIGNED_RED*sx) | (NV34TCL_TX_FILTER_SIGNED_GREEN*sy) | \
+ (NV34TCL_TX_FILTER_SIGNED_BLUE*sz) | (NV34TCL_TX_FILTER_SIGNED_ALPHA*sw)) \
+}
+
+struct nv40_texture_format {
+ boolean defined;
+ uint pipe;
+ int format;
+ int swizzle;
+ int sign;
+};
+
+static struct nv40_texture_format
+nv40_texture_formats[] = {
+ _(B8G8R8X8_UNORM, A8R8G8B8, S1, S1, S1, ONE, X, Y, Z, W, 0, 0, 0, 0),
+ _(B8G8R8A8_UNORM, A8R8G8B8, S1, S1, S1, S1, X, Y, Z, W, 0, 0, 0, 0),
+ _(B5G5R5A1_UNORM, A1R5G5B5, S1, S1, S1, S1, X, Y, Z, W, 0, 0, 0, 0),
+ _(B4G4R4A4_UNORM, A4R4G4B4, S1, S1, S1, S1, X, Y, Z, W, 0, 0, 0, 0),
+ _(B5G6R5_UNORM , R5G6B5 , S1, S1, S1, ONE, X, Y, Z, W, 0, 0, 0, 0),
+ _(L8_UNORM , L8 , S1, S1, S1, ONE, X, X, X, X, 0, 0, 0, 0),
+ _(A8_UNORM , L8 , ZERO, ZERO, ZERO, S1, X, X, X, X, 0, 0, 0, 0),
+ _(R16_SNORM , A16 , ZERO, ZERO, S1, ONE, X, X, X, Y, 1, 1, 1, 1),
+ _(I8_UNORM , L8 , S1, S1, S1, S1, X, X, X, X, 0, 0, 0, 0),
+ _(L8A8_UNORM , A8L8 , S1, S1, S1, S1, X, X, X, Y, 0, 0, 0, 0),
+ _(Z16_UNORM , Z16 , S1, S1, S1, ONE, X, X, X, X, 0, 0, 0, 0),
+ _(S8_USCALED_Z24_UNORM , Z24 , S1, S1, S1, ONE, X, X, X, X, 0, 0, 0, 0),
+ _(DXT1_RGB , DXT1 , S1, S1, S1, ONE, X, Y, Z, W, 0, 0, 0, 0),
+ _(DXT1_RGBA , DXT1 , S1, S1, S1, S1, X, Y, Z, W, 0, 0, 0, 0),
+ _(DXT3_RGBA , DXT3 , S1, S1, S1, S1, X, Y, Z, W, 0, 0, 0, 0),
+ _(DXT5_RGBA , DXT5 , S1, S1, S1, S1, X, Y, Z, W, 0, 0, 0, 0),
+ {},
+};
+
+static struct nv40_texture_format *
+nv40_fragtex_format(uint pipe_format)
+{
+ struct nv40_texture_format *tf = nv40_texture_formats;
+
+ while (tf->defined) {
+ if (tf->pipe == pipe_format)
+ return tf;
+ tf++;
+ }
+
+ NOUVEAU_ERR("unknown texture format %s\n", util_format_name(pipe_format));
+ return NULL;
+}
+
+
+void
+nv40_fragtex_set(struct nvfx_context *nvfx, int unit)
+{
+ struct nouveau_channel* chan = nvfx->screen->base.channel;
+ struct nvfx_sampler_state *ps = nvfx->tex_sampler[unit];
+ struct nvfx_miptree *nv40mt = (struct nvfx_miptree *)nvfx->fragment_sampler_views[unit]->texture;
+ struct nouveau_bo *bo = nv40mt->base.bo;
+ struct pipe_resource *pt = &nv40mt->base.base;
+ struct nv40_texture_format *tf;
+
+ uint32_t txf, txs, txp;
+ unsigned tex_flags = NOUVEAU_BO_VRAM | NOUVEAU_BO_GART | NOUVEAU_BO_RD;
+
+ tf = nv40_fragtex_format(pt->format);
+ if (!tf)
+ assert(0);
+
+ txf = ps->fmt;
+ txf |= tf->format | 0x8000;
+ txf |= ((pt->last_level + 1) << NV40TCL_TEX_FORMAT_MIPMAP_COUNT_SHIFT);
+
+ if (1) /* XXX */
+ txf |= NV34TCL_TX_FORMAT_NO_BORDER;
+
+ switch (pt->target) {
+ case PIPE_TEXTURE_CUBE:
+ txf |= NV34TCL_TX_FORMAT_CUBIC;
+ /* fall-through */
+ case PIPE_TEXTURE_2D:
+ txf |= NV34TCL_TX_FORMAT_DIMS_2D;
+ break;
+ case PIPE_TEXTURE_3D:
+ txf |= NV34TCL_TX_FORMAT_DIMS_3D;
+ break;
+ case PIPE_TEXTURE_1D:
+ txf |= NV34TCL_TX_FORMAT_DIMS_1D;
+ break;
+ default:
+ NOUVEAU_ERR("Unknown target %d\n", pt->target);
+ return;
+ }
+
+ if (!(pt->flags & NVFX_RESOURCE_FLAG_LINEAR)) {
+ txp = 0;
+ } else {
+ txp = nv40mt->level[0].pitch;
+ txf |= NV40TCL_TEX_FORMAT_LINEAR;
+ }
+
+ txs = tf->swizzle;
+
+ MARK_RING(chan, 11 + 2 * !unit, 2);
+ OUT_RING(chan, RING_3D(NV34TCL_TX_OFFSET(unit), 8));
+ OUT_RELOC(chan, bo, 0, tex_flags | NOUVEAU_BO_LOW, 0, 0);
+ OUT_RELOC(chan, bo, txf, tex_flags | NOUVEAU_BO_OR,
+ NV34TCL_TX_FORMAT_DMA0, NV34TCL_TX_FORMAT_DMA1);
+ OUT_RING(chan, ps->wrap);
+ OUT_RING(chan, NV40TCL_TEX_ENABLE_ENABLE | ps->en);
+ OUT_RING(chan, txs);
+ OUT_RING(chan, ps->filt | tf->sign | 0x2000 /*voodoo*/);
+ OUT_RING(chan, (pt->width0 << NV34TCL_TX_NPOT_SIZE_W_SHIFT) | pt->height0);
+ OUT_RING(chan, ps->bcol);
+ OUT_RING(chan, RING_3D(NV40TCL_TEX_SIZE1(unit), 1));
+ OUT_RING(chan, (pt->depth0 << NV40TCL_TEX_SIZE1_DEPTH_SHIFT) | txp);
+
+ nvfx->hw_txf[unit] = txf;
+ nvfx->hw_samplers |= (1 << unit);
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-04 19:25:19 +0000