1 files changed, 118 insertions, 0 deletions
diff --git a/src/gallium/drivers/etnaviv/etnaviv_uniforms.c b/src/gallium/drivers/etnaviv/etnaviv_uniforms.c
new file mode 100644
index 00000000000..70e5d58ecb3
--- /dev/null
+++ b/src/gallium/drivers/etnaviv/etnaviv_uniforms.c
@@ -0,0 +1,118 @@
+/*
+ * Copyright (c) 2016 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:
+ *    Christian Gmeiner <[email protected]>
+ */
+
+#include "etnaviv_uniforms.h"
+
+#include "etnaviv_compiler.h"
+#include "etnaviv_context.h"
+#include "etnaviv_util.h"
+#include "pipe/p_defines.h"
+#include "util/u_math.h"
+
+static unsigned
+get_const_idx(const struct etna_context *ctx, bool frag, unsigned samp_id)
+{
+   if (frag)
+      return samp_id;
+
+   return samp_id + ctx->specs.vertex_sampler_offset;
+}
+
+static uint32_t
+get_texrect_scale(const struct etna_context *ctx, bool frag,
+                  enum etna_immediate_contents contents, uint32_t data)
+{
+   unsigned index = get_const_idx(ctx, frag, data);
+   struct pipe_sampler_view *texture = ctx->sampler_view[index];
+   uint32_t dim;
+
+   if (contents == ETNA_IMMEDIATE_TEXRECT_SCALE_X)
+      dim = texture->texture->width0;
+   else
+      dim = texture->texture->height0;
+
+   return fui(1.0f / dim);
+}
+
+void
+etna_uniforms_write(const struct etna_context *ctx,
+                    const struct etna_shader *sobj,
+                    struct pipe_constant_buffer *cb, uint32_t *uniforms,
+                    unsigned *size)
+{
+   const struct etna_shader_uniform_info *uinfo = &sobj->uniforms;
+   bool frag = false;
+
+   if (cb->user_buffer) {
+      unsigned size = MIN2(cb->buffer_size, uinfo->const_count * 4);
+
+      memcpy(uniforms, cb->user_buffer, size);
+   }
+
+   if (sobj == ctx->fs)
+      frag = true;
+
+   for (uint32_t i = 0; i < uinfo->imm_count; i++) {
+      switch (uinfo->imm_contents[i]) {
+      case ETNA_IMMEDIATE_CONSTANT:
+         uniforms[i + uinfo->const_count] = uinfo->imm_data[i];
+         break;
+
+      case ETNA_IMMEDIATE_TEXRECT_SCALE_X:
+      case ETNA_IMMEDIATE_TEXRECT_SCALE_Y:
+         uniforms[i + uinfo->const_count] =
+               get_texrect_scale(ctx, frag, uinfo->imm_contents[i], uinfo->imm_data[i]);
+         break;
+
+      case ETNA_IMMEDIATE_UNUSED:
+         /* nothing to do */
+         break;
+      }
+   }
+
+   *size = uinfo->const_count + uinfo->imm_count;
+}
+
+void
+etna_set_shader_uniforms_dirty_flags(struct etna_shader *sobj)
+{
+   uint32_t dirty = 0;
+
+   for (uint32_t i = 0; i < sobj->uniforms.imm_count; i++) {
+      switch (sobj->uniforms.imm_contents[i]) {
+      case ETNA_IMMEDIATE_UNUSED:
+      case ETNA_IMMEDIATE_CONSTANT:
+         break;
+
+      case ETNA_IMMEDIATE_TEXRECT_SCALE_X:
+      case ETNA_IMMEDIATE_TEXRECT_SCALE_Y:
+         dirty |= ETNA_DIRTY_SAMPLER_VIEWS;
+         break;
+      }
+   }
+
+   sobj->uniforms_dirty_bits = dirty;
+}