1 files changed, 278 insertions, 0 deletions
diff --git a/src/gallium/drivers/lima/lima_texture.c b/src/gallium/drivers/lima/lima_texture.c
new file mode 100644
index 00000000000..548d9839ff0
--- /dev/null
+++ b/src/gallium/drivers/lima/lima_texture.c
@@ -0,0 +1,278 @@
+/*
+ * Copyright (c) 2011-2013 Luc Verhaegen <[email protected]>
+ * Copyright (c) 2018-2019 Lima 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.
+ *
+ */
+
+#include "util/u_memory.h"
+#include "util/u_upload_mgr.h"
+#include "util/u_math.h"
+#include "util/u_debug.h"
+#include "util/u_transfer.h"
+
+#include "lima_bo.h"
+#include "lima_context.h"
+#include "lima_screen.h"
+#include "lima_texture.h"
+#include "lima_resource.h"
+#include "lima_submit.h"
+#include "lima_util.h"
+
+#include <drm-uapi/lima_drm.h>
+
+#define LIMA_TEXEL_FORMAT_BGR_565      0x0e
+#define LIMA_TEXEL_FORMAT_RGB_888      0x15
+#define LIMA_TEXEL_FORMAT_RGBA_8888    0x16
+#define LIMA_TEXEL_FORMAT_RGBX_8888    0x17
+
+#define lima_tex_list_size 64
+
+static uint32_t pipe_format_to_lima(enum pipe_format pformat)
+{
+   unsigned swap_chans = 0, flag1 = 0, format;
+
+   switch (pformat) {
+   case PIPE_FORMAT_R8G8B8A8_UNORM:
+      swap_chans = 1;
+   case PIPE_FORMAT_B8G8R8A8_UNORM:
+      format = LIMA_TEXEL_FORMAT_RGBA_8888;
+      break;
+   case PIPE_FORMAT_R8G8B8X8_UNORM:
+      swap_chans = 1;
+   case PIPE_FORMAT_B8G8R8X8_UNORM:
+      format = LIMA_TEXEL_FORMAT_RGBX_8888;
+      break;
+   case PIPE_FORMAT_R8G8B8_UNORM:
+      swap_chans = 1;
+      format = LIMA_TEXEL_FORMAT_RGB_888;
+      break;
+   case PIPE_FORMAT_B5G6R5_UNORM:
+      format = LIMA_TEXEL_FORMAT_BGR_565;
+      break;
+   default:
+      assert(0);
+      break;
+   }
+
+   return (swap_chans << 7) | (flag1 << 6) | format;
+}
+
+void
+lima_texture_desc_set_res(struct lima_context *ctx, uint32_t *desc,
+                          struct pipe_resource *prsc,
+                          unsigned first_level, unsigned last_level)
+{
+   unsigned width, height, layout, i;
+   struct lima_resource *lima_res = lima_resource(prsc);
+
+   width = prsc->width0;
+   height = prsc->height0;
+   if (first_level != 0) {
+      width = u_minify(width, first_level);
+      height = u_minify(height, first_level);
+   }
+
+   desc[0] |= pipe_format_to_lima(prsc->format);
+   desc[2] |= (width << 22);
+   desc[3] |= 0x10000 | (height << 3) | (width >> 10);
+
+   if (lima_res->tiled)
+      layout = 3;
+   else {
+      /* for padded linear texture */
+      if (lima_res->levels[first_level].width != width) {
+         desc[0] |= lima_res->levels[first_level].width << 18;
+         desc[2] |= 0x100;
+      }
+      layout = 0;
+   }
+
+   lima_submit_add_bo(ctx->pp_submit, lima_res->bo, LIMA_SUBMIT_BO_READ);
+
+   uint32_t base_va = lima_res->bo->va;
+
+   /* attach level 0 */
+   desc[6] |= (base_va << 24) | (layout << 13);
+   desc[7] |= base_va >> 8;
+
+   /* Attach remaining levels.
+    * Each subsequent mipmap address is specified using the 26 msbs.
+    * These addresses are then packed continuously in memory */
+   unsigned current_desc_index = 7;
+   unsigned current_desc_bit_index = 24;
+   for (i = 1; i < LIMA_MAX_MIP_LEVELS; i++) {
+      if (first_level + i > last_level)
+         break;
+
+      uint32_t address = base_va + lima_res->levels[i].offset;
+      address = (address >> 6);
+      desc[current_desc_index] |= (address << current_desc_bit_index);
+      if (current_desc_bit_index <= 6) {
+         current_desc_bit_index += 26;
+         if (current_desc_bit_index >= 32) {
+            current_desc_bit_index &= 0x1F;
+            current_desc_index++;
+         }
+         continue;
+      }
+      desc[current_desc_index + 1] |= (address >> (32 - current_desc_bit_index));
+      current_desc_bit_index = (current_desc_bit_index + 26) & 0x1F;
+      current_desc_index++;
+   }
+}
+
+static void
+lima_update_tex_desc(struct lima_context *ctx, struct lima_sampler_state *sampler,
+                     struct lima_sampler_view *texture, void *pdesc)
+{
+   uint32_t *desc = pdesc;
+   unsigned first_level;
+   unsigned last_level;
+   bool mipmapping;
+
+   memset(desc, 0, lima_tex_desc_size);
+
+   /* 2D texture */
+   desc[1] |= 0x400;
+
+   desc[1] &= ~0xff000000;
+   switch (sampler->base.min_mip_filter) {
+      case PIPE_TEX_MIPFILTER_NEAREST:
+         first_level = texture->base.u.tex.first_level;
+         last_level = texture->base.u.tex.last_level;
+         if (last_level - first_level >= LIMA_MAX_MIP_LEVELS)
+            last_level = first_level + LIMA_MAX_MIP_LEVELS - 1;
+         mipmapping = true;
+         desc[1] |= ((last_level - first_level) << 24);
+         desc[2] &= ~0x0600;
+         break;
+      case PIPE_TEX_MIPFILTER_LINEAR:
+         first_level = texture->base.u.tex.first_level;
+         last_level = texture->base.u.tex.last_level;
+         if (last_level - first_level >= LIMA_MAX_MIP_LEVELS)
+            last_level = first_level + LIMA_MAX_MIP_LEVELS - 1;
+         mipmapping = true;
+         desc[1] |= ((last_level - first_level) << 24);
+         desc[2] |= 0x0600;
+         break;
+      case PIPE_TEX_MIPFILTER_NONE:
+      default:
+         first_level = 0;
+         last_level = 0;
+         mipmapping = false;
+         desc[2] &= ~0x0600;
+         break;
+   }
+
+   switch (sampler->base.mag_img_filter) {
+   case PIPE_TEX_FILTER_LINEAR:
+      desc[2] &= ~0x1000;
+      /* no mipmap, filter_mag = linear */
+      if (!mipmapping)
+         desc[1] |= 0x80000000;
+      break;
+   case PIPE_TEX_FILTER_NEAREST:
+   default:
+      desc[2] |= 0x1000;
+      break;
+   }
+
+   switch (sampler->base.min_img_filter) {
+      break;
+   case PIPE_TEX_FILTER_LINEAR:
+      desc[2] &= ~0x0800;
+      break;
+   case PIPE_TEX_FILTER_NEAREST:
+   default:
+      desc[2] |= 0x0800;
+      break;
+   }
+
+   /* Only clamp, clamp to edge, repeat and mirror repeat are supported */
+   desc[2] &= ~0xe000;
+   switch (sampler->base.wrap_s) {
+   case PIPE_TEX_WRAP_CLAMP:
+      desc[2] |= 0x4000;
+      break;
+   case PIPE_TEX_WRAP_CLAMP_TO_EDGE:
+   case PIPE_TEX_WRAP_CLAMP_TO_BORDER:
+      desc[2] |= 0x2000;
+      break;
+   case PIPE_TEX_WRAP_MIRROR_REPEAT:
+      desc[2] |= 0x8000;
+      break;
+   case PIPE_TEX_WRAP_REPEAT:
+   default:
+      break;
+   }
+
+   /* Only clamp, clamp to edge, repeat and mirror repeat are supported */
+   desc[2] &= ~0x070000;
+   switch (sampler->base.wrap_t) {
+   case PIPE_TEX_WRAP_CLAMP:
+      desc[2] |= 0x020000;
+      break;
+   case PIPE_TEX_WRAP_CLAMP_TO_EDGE:
+   case PIPE_TEX_WRAP_CLAMP_TO_BORDER:
+      desc[2] |= 0x010000;
+      break;
+   case PIPE_TEX_WRAP_MIRROR_REPEAT:
+      desc[2] |= 0x040000;
+      break;
+   case PIPE_TEX_WRAP_REPEAT:
+   default:
+      break;
+   }
+
+   lima_texture_desc_set_res(ctx, desc, texture->base.texture,
+                             first_level, last_level);
+}
+
+void
+lima_update_textures(struct lima_context *ctx)
+{
+   struct lima_texture_stateobj *lima_tex = &ctx->tex_stateobj;
+
+   assert (lima_tex->num_samplers <= 16);
+
+   /* Nothing to do - we have no samplers or textures */
+   if (!lima_tex->num_samplers || !lima_tex->num_textures)
+      return;
+
+   unsigned size = lima_tex_list_size + lima_tex->num_samplers * lima_tex_desc_size;
+   uint32_t *descs =
+      lima_ctx_buff_alloc(ctx, lima_ctx_buff_pp_tex_desc, size, true);
+
+   for (int i = 0; i < lima_tex->num_samplers; i++) {
+      off_t offset = lima_tex_desc_size * i + lima_tex_list_size;
+      struct lima_sampler_state *sampler = lima_sampler_state(lima_tex->samplers[i]);
+      struct lima_sampler_view *texture = lima_sampler_view(lima_tex->textures[i]);
+
+      descs[i] = lima_ctx_buff_va(ctx, lima_ctx_buff_pp_tex_desc,
+                                  LIMA_CTX_BUFF_SUBMIT_PP) + offset;
+      lima_update_tex_desc(ctx, sampler, texture, (void *)descs + offset);
+   }
+
+   lima_dump_command_stream_print(
+      descs, size, false, "add textures_desc at va %x\n",
+      lima_ctx_buff_va(ctx, lima_ctx_buff_pp_tex_desc, 0));
+}