1 files changed, 338 insertions, 0 deletions

diff --git a/src/gallium/drivers/etnaviv/etnaviv_texture.c b/src/gallium/drivers/etnaviv/etnaviv_texture.c
new file mode 100644
index 00000000000..6b64de2d8e2
--- /dev/null
+++ b/src/gallium/drivers/etnaviv/etnaviv_texture.c
@@ -0,0 +1,338 @@
+/*
+ * Copyright (c) 2012-2015 Etnaviv Project
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sub license,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ * Authors:
+ *    Wladimir J. van der Laan <[email protected]>
+ */
+
+#include "etnaviv_texture.h"
+
+#include "hw/common.xml.h"
+
+#include "etnaviv_clear_blit.h"
+#include "etnaviv_context.h"
+#include "etnaviv_emit.h"
+#include "etnaviv_format.h"
+#include "etnaviv_translate.h"
+#include "util/u_inlines.h"
+#include "util/u_memory.h"
+
+static void *
+etna_create_sampler_state(struct pipe_context *pipe,
+                          const struct pipe_sampler_state *ss)
+{
+   struct etna_sampler_state *cs = CALLOC_STRUCT(etna_sampler_state);
+
+   if (!cs)
+      return NULL;
+
+   cs->TE_SAMPLER_CONFIG0 =
+      VIVS_TE_SAMPLER_CONFIG0_UWRAP(translate_texture_wrapmode(ss->wrap_s)) |
+      VIVS_TE_SAMPLER_CONFIG0_VWRAP(translate_texture_wrapmode(ss->wrap_t)) |
+      VIVS_TE_SAMPLER_CONFIG0_MIN(translate_texture_filter(ss->min_img_filter)) |
+      VIVS_TE_SAMPLER_CONFIG0_MIP(translate_texture_mipfilter(ss->min_mip_filter)) |
+      VIVS_TE_SAMPLER_CONFIG0_MAG(translate_texture_filter(ss->mag_img_filter)) |
+      COND(ss->normalized_coords, VIVS_TE_SAMPLER_CONFIG0_ROUND_UV);
+   cs->TE_SAMPLER_CONFIG1 = 0; /* VIVS_TE_SAMPLER_CONFIG1 (swizzle, extended
+                                  format) fully determined by sampler view */
+   cs->TE_SAMPLER_LOD_CONFIG =
+      COND(ss->lod_bias != 0.0, VIVS_TE_SAMPLER_LOD_CONFIG_BIAS_ENABLE) |
+      VIVS_TE_SAMPLER_LOD_CONFIG_BIAS(etna_float_to_fixp55(ss->lod_bias));
+
+   if (ss->min_mip_filter != PIPE_TEX_MIPFILTER_NONE) {
+      cs->min_lod = etna_float_to_fixp55(ss->min_lod);
+      cs->max_lod = etna_float_to_fixp55(ss->max_lod);
+   } else {
+      /* when not mipmapping, we need to set max/min lod so that always
+       * lowest LOD is selected */
+      cs->min_lod = cs->max_lod = etna_float_to_fixp55(ss->min_lod);
+   }
+
+   return cs;
+}
+
+static void
+etna_bind_sampler_states(struct pipe_context *pctx, unsigned shader,
+                         unsigned start_slot, unsigned num_samplers,
+                         void **samplers)
+{
+   /* bind fragment sampler */
+   struct etna_context *ctx = etna_context(pctx);
+   int offset;
+
+   switch (shader) {
+   case PIPE_SHADER_FRAGMENT:
+      offset = 0;
+      ctx->num_fragment_samplers = num_samplers;
+      break;
+   case PIPE_SHADER_VERTEX:
+      offset = ctx->specs.vertex_sampler_offset;
+      break;
+   default:
+      assert(!"Invalid shader");
+      return;
+   }
+
+   uint32_t mask = 1 << offset;
+   for (int idx = 0; idx < num_samplers; ++idx, mask <<= 1) {
+      ctx->sampler[offset + idx] = samplers[idx];
+      if (samplers[idx])
+         ctx->active_samplers |= mask;
+      else
+         ctx->active_samplers &= ~mask;
+   }
+
+   ctx->dirty |= ETNA_DIRTY_SAMPLERS;
+}
+
+static void
+etna_delete_sampler_state(struct pipe_context *pctx, void *ss)
+{
+   FREE(ss);
+}
+
+static void
+etna_update_sampler_source(struct pipe_sampler_view *view)
+{
+   struct etna_resource *res = etna_resource(view->texture);
+
+   if (res->texture && etna_resource_older(etna_resource(res->texture), res)) {
+      /* Texture is older than render buffer, copy the texture using RS */
+      etna_copy_resource(view->context, res->texture, view->texture, 0,
+                         view->texture->last_level);
+      etna_resource(res->texture)->seqno = res->seqno;
+   }
+}
+
+static bool
+etna_resource_sampler_compatible(struct etna_resource *res)
+{
+   if (util_format_is_compressed(res->base.format))
+      return true;
+
+   /* The sampler (as we currently know it) only accepts tiled layouts */
+   if (res->layout != ETNA_LAYOUT_TILED)
+      return false;
+
+   /* If we have HALIGN support, we can allow for the RS padding */
+   struct etna_screen *screen = etna_screen(res->base.screen);
+   if (VIV_FEATURE(screen, chipMinorFeatures1, TEXTURE_HALIGN))
+      return true;
+
+   /* Non-HALIGN GPUs only accept 4x4 tile-aligned textures */
+   if (res->halign != TEXTURE_HALIGN_FOUR)
+      return false;
+
+   return true;
+}
+
+static struct pipe_sampler_view *
+etna_create_sampler_view(struct pipe_context *pctx, struct pipe_resource *prsc,
+                         const struct pipe_sampler_view *so)
+{
+   struct etna_sampler_view *sv = CALLOC_STRUCT(etna_sampler_view);
+   struct etna_resource *res = etna_resource(prsc);
+   struct etna_context *ctx = etna_context(pctx);
+
+   if (!sv)
+      return NULL;
+
+   if (!etna_resource_sampler_compatible(res)) {
+      /* The original resource is not compatible with the sampler.
+       * Allocate an appropriately tiled texture. */
+      if (!res->texture) {
+         struct pipe_resource templat = *prsc;
+
+         templat.bind &= ~(PIPE_BIND_DEPTH_STENCIL | PIPE_BIND_RENDER_TARGET |
+                           PIPE_BIND_BLENDABLE);
+         res->texture =
+            etna_resource_alloc(pctx->screen, ETNA_LAYOUT_TILED, &templat);
+      }
+
+      if (!res->texture) {
+         free(sv);
+         return NULL;
+      }
+      res = etna_resource(res->texture);
+   }
+
+   sv->base = *so;
+   pipe_reference(NULL, &prsc->reference);
+   sv->base.texture = prsc;
+   sv->base.reference.count = 1;
+   sv->base.context = pctx;
+
+   /* merged with sampler state */
+   sv->TE_SAMPLER_CONFIG0 =
+      VIVS_TE_SAMPLER_CONFIG0_FORMAT(translate_texture_format(sv->base.format));
+   sv->TE_SAMPLER_CONFIG0_MASK = 0xffffffff;
+
+   switch (sv->base.target) {
+   case PIPE_TEXTURE_1D:
+      /* For 1D textures, we will have a height of 1, so we can use 2D
+       * but set T wrap to repeat */
+      sv->TE_SAMPLER_CONFIG0_MASK = ~VIVS_TE_SAMPLER_CONFIG0_VWRAP__MASK;
+      sv->TE_SAMPLER_CONFIG0 |= VIVS_TE_SAMPLER_CONFIG0_VWRAP(TEXTURE_WRAPMODE_REPEAT);
+   case PIPE_TEXTURE_2D:
+   case PIPE_TEXTURE_RECT:
+      sv->TE_SAMPLER_CONFIG0 |= VIVS_TE_SAMPLER_CONFIG0_TYPE(TEXTURE_TYPE_2D);
+      break;
+   case PIPE_TEXTURE_CUBE:
+      sv->TE_SAMPLER_CONFIG0 |= VIVS_TE_SAMPLER_CONFIG0_TYPE(TEXTURE_TYPE_CUBE_MAP);
+      break;
+   default:
+      BUG("Unhandled texture target");
+      free(sv);
+      return NULL;
+   }
+
+   sv->TE_SAMPLER_CONFIG1 = VIVS_TE_SAMPLER_CONFIG1_SWIZZLE_R(so->swizzle_r) |
+                            VIVS_TE_SAMPLER_CONFIG1_SWIZZLE_G(so->swizzle_g) |
+                            VIVS_TE_SAMPLER_CONFIG1_SWIZZLE_B(so->swizzle_b) |
+                            VIVS_TE_SAMPLER_CONFIG1_SWIZZLE_A(so->swizzle_a) |
+                            VIVS_TE_SAMPLER_CONFIG1_HALIGN(res->halign);
+   sv->TE_SAMPLER_SIZE = VIVS_TE_SAMPLER_SIZE_WIDTH(res->base.width0) |
+                         VIVS_TE_SAMPLER_SIZE_HEIGHT(res->base.height0);
+   sv->TE_SAMPLER_LOG_SIZE =
+      VIVS_TE_SAMPLER_LOG_SIZE_WIDTH(etna_log2_fixp55(res->base.width0)) |
+      VIVS_TE_SAMPLER_LOG_SIZE_HEIGHT(etna_log2_fixp55(res->base.height0));
+
+   /* Set up levels-of-detail */
+   for (int lod = 0; lod <= res->base.last_level; ++lod) {
+      sv->TE_SAMPLER_LOD_ADDR[lod].bo = res->bo;
+      sv->TE_SAMPLER_LOD_ADDR[lod].offset = res->levels[lod].offset;
+      sv->TE_SAMPLER_LOD_ADDR[lod].flags = ETNA_RELOC_READ;
+   }
+   sv->min_lod = sv->base.u.tex.first_level << 5;
+   sv->max_lod = MIN2(sv->base.u.tex.last_level, res->base.last_level) << 5;
+
+   /* Workaround for npot textures -- it appears that only CLAMP_TO_EDGE is
+    * supported when the appropriate capability is not set. */
+   if (!ctx->specs.npot_tex_any_wrap &&
+       (!util_is_power_of_two(res->base.width0) || !util_is_power_of_two(res->base.height0))) {
+      sv->TE_SAMPLER_CONFIG0_MASK = ~(VIVS_TE_SAMPLER_CONFIG0_UWRAP__MASK |
+                                      VIVS_TE_SAMPLER_CONFIG0_VWRAP__MASK);
+      sv->TE_SAMPLER_CONFIG0 |=
+         VIVS_TE_SAMPLER_CONFIG0_UWRAP(TEXTURE_WRAPMODE_CLAMP_TO_EDGE) |
+         VIVS_TE_SAMPLER_CONFIG0_VWRAP(TEXTURE_WRAPMODE_CLAMP_TO_EDGE);
+   }
+
+   return &sv->base;
+}
+
+static void
+etna_sampler_view_destroy(struct pipe_context *pctx,
+                          struct pipe_sampler_view *view)
+{
+   pipe_resource_reference(&view->texture, NULL);
+   FREE(view);
+}
+
+static void
+set_sampler_views(struct etna_context *ctx, unsigned start, unsigned end,
+                  unsigned nr, struct pipe_sampler_view **views)
+{
+   unsigned i, j;
+   uint32_t mask = 1 << start;
+
+   for (i = start, j = 0; j < nr; i++, j++, mask <<= 1) {
+      pipe_sampler_view_reference(&ctx->sampler_view[i], views[j]);
+      if (views[j])
+         ctx->active_sampler_views |= mask;
+      else
+         ctx->active_sampler_views &= ~mask;
+   }
+
+   for (; i < end; i++, mask <<= 1) {
+      pipe_sampler_view_reference(&ctx->sampler_view[i], NULL);
+      ctx->active_sampler_views &= ~mask;
+   }
+}
+
+static inline void
+etna_fragtex_set_sampler_views(struct etna_context *ctx, unsigned nr,
+                               struct pipe_sampler_view **views)
+{
+   unsigned start = 0;
+   unsigned end = start + ctx->specs.fragment_sampler_count;
+
+   set_sampler_views(ctx, start, end, nr, views);
+   ctx->num_fragment_sampler_views = nr;
+}
+
+
+static inline void
+etna_vertex_set_sampler_views(struct etna_context *ctx, unsigned nr,
+                              struct pipe_sampler_view **views)
+{
+   unsigned start = ctx->specs.vertex_sampler_offset;
+   unsigned end = start + ctx->specs.vertex_sampler_count;
+
+   set_sampler_views(ctx, start, end, nr, views);
+}
+
+static void
+etna_set_sampler_views(struct pipe_context *pctx, unsigned shader,
+                       unsigned start_slot, unsigned num_views,
+                       struct pipe_sampler_view **views)
+{
+   struct etna_context *ctx = etna_context(pctx);
+   assert(start_slot == 0);
+
+   ctx->dirty |= ETNA_DIRTY_SAMPLER_VIEWS | ETNA_DIRTY_TEXTURE_CACHES;
+
+   for (unsigned idx = 0; idx < num_views; ++idx) {
+      if (views[idx])
+         etna_update_sampler_source(views[idx]);
+   }
+
+   switch (shader) {
+   case PIPE_SHADER_FRAGMENT:
+      etna_fragtex_set_sampler_views(ctx, num_views, views);
+      break;
+   case PIPE_SHADER_VERTEX:
+      etna_vertex_set_sampler_views(ctx, num_views, views);
+      break;
+   default:;
+   }
+}
+
+static void
+etna_texture_barrier(struct pipe_context *pctx)
+{
+   struct etna_context *ctx = etna_context(pctx);
+   /* clear color and texture cache to make sure that texture unit reads
+    * what has been written */
+   etna_set_state(ctx->stream, VIVS_GL_FLUSH_CACHE, VIVS_GL_FLUSH_CACHE_COLOR | VIVS_GL_FLUSH_CACHE_TEXTURE);
+}
+
+void
+etna_texture_init(struct pipe_context *pctx)
+{
+   pctx->create_sampler_state = etna_create_sampler_state;
+   pctx->bind_sampler_states = etna_bind_sampler_states;
+   pctx->delete_sampler_state = etna_delete_sampler_state;
+   pctx->set_sampler_views = etna_set_sampler_views;
+   pctx->create_sampler_view = etna_create_sampler_view;
+   pctx->sampler_view_destroy = etna_sampler_view_destroy;
+   pctx->texture_barrier = etna_texture_barrier;
+}