i965/gs: Add a case to brwNewProgram() for geometry shaders.
[mesa.git] / src / mesa / drivers / dri / i965 / brw_draw_upload.c
index 3cc3372048664788ac4809be295f3ae0d0df62a6..390b4a37f35168c41df1d92d97e1cfbb21eb4264 100644 (file)
  * 
  **************************************************************************/
 
-#undef NDEBUG
-
 #include "main/glheader.h"
 #include "main/bufferobj.h"
 #include "main/context.h"
 #include "main/enums.h"
+#include "main/macros.h"
+#include "main/glformats.h"
 
 #include "brw_draw.h"
 #include "brw_defines.h"
@@ -64,6 +64,22 @@ static GLuint half_float_types[5] = {
    BRW_SURFACEFORMAT_R16G16B16A16_FLOAT
 };
 
+static GLuint fixed_point_types[5] = {
+   0,
+   BRW_SURFACEFORMAT_R32_SFIXED,
+   BRW_SURFACEFORMAT_R32G32_SFIXED,
+   BRW_SURFACEFORMAT_R32G32B32_SFIXED,
+   BRW_SURFACEFORMAT_R32G32B32A32_SFIXED,
+};
+
+static GLuint uint_types_direct[5] = {
+   0,
+   BRW_SURFACEFORMAT_R32_UINT,
+   BRW_SURFACEFORMAT_R32G32_UINT,
+   BRW_SURFACEFORMAT_R32G32B32_UINT,
+   BRW_SURFACEFORMAT_R32G32B32A32_UINT
+};
+
 static GLuint uint_types_norm[5] = {
    0,
    BRW_SURFACEFORMAT_R32_UNORM,
@@ -80,6 +96,14 @@ static GLuint uint_types_scale[5] = {
    BRW_SURFACEFORMAT_R32G32B32A32_USCALED
 };
 
+static GLuint int_types_direct[5] = {
+   0,
+   BRW_SURFACEFORMAT_R32_SINT,
+   BRW_SURFACEFORMAT_R32G32_SINT,
+   BRW_SURFACEFORMAT_R32G32B32_SINT,
+   BRW_SURFACEFORMAT_R32G32B32A32_SINT
+};
+
 static GLuint int_types_norm[5] = {
    0,
    BRW_SURFACEFORMAT_R32_SNORM,
@@ -96,6 +120,14 @@ static GLuint int_types_scale[5] = {
    BRW_SURFACEFORMAT_R32G32B32A32_SSCALED
 };
 
+static GLuint ushort_types_direct[5] = {
+   0,
+   BRW_SURFACEFORMAT_R16_UINT,
+   BRW_SURFACEFORMAT_R16G16_UINT,
+   BRW_SURFACEFORMAT_R16G16B16A16_UINT,
+   BRW_SURFACEFORMAT_R16G16B16A16_UINT
+};
+
 static GLuint ushort_types_norm[5] = {
    0,
    BRW_SURFACEFORMAT_R16_UNORM,
@@ -112,6 +144,14 @@ static GLuint ushort_types_scale[5] = {
    BRW_SURFACEFORMAT_R16G16B16A16_USCALED
 };
 
+static GLuint short_types_direct[5] = {
+   0,
+   BRW_SURFACEFORMAT_R16_SINT,
+   BRW_SURFACEFORMAT_R16G16_SINT,
+   BRW_SURFACEFORMAT_R16G16B16A16_SINT,
+   BRW_SURFACEFORMAT_R16G16B16A16_SINT
+};
+
 static GLuint short_types_norm[5] = {
    0,
    BRW_SURFACEFORMAT_R16_SNORM,
@@ -128,6 +168,14 @@ static GLuint short_types_scale[5] = {
    BRW_SURFACEFORMAT_R16G16B16A16_SSCALED
 };
 
+static GLuint ubyte_types_direct[5] = {
+   0,
+   BRW_SURFACEFORMAT_R8_UINT,
+   BRW_SURFACEFORMAT_R8G8_UINT,
+   BRW_SURFACEFORMAT_R8G8B8A8_UINT,
+   BRW_SURFACEFORMAT_R8G8B8A8_UINT
+};
+
 static GLuint ubyte_types_norm[5] = {
    0,
    BRW_SURFACEFORMAT_R8_UNORM,
@@ -144,6 +192,14 @@ static GLuint ubyte_types_scale[5] = {
    BRW_SURFACEFORMAT_R8G8B8A8_USCALED
 };
 
+static GLuint byte_types_direct[5] = {
+   0,
+   BRW_SURFACEFORMAT_R8_SINT,
+   BRW_SURFACEFORMAT_R8G8_SINT,
+   BRW_SURFACEFORMAT_R8G8B8A8_SINT,
+   BRW_SURFACEFORMAT_R8G8B8A8_SINT
+};
+
 static GLuint byte_types_norm[5] = {
    0,
    BRW_SURFACEFORMAT_R8_SNORM,
@@ -166,15 +222,30 @@ static GLuint byte_types_scale[5] = {
  * the appopriate hardware surface type.
  * Format will be GL_RGBA or possibly GL_BGRA for GLubyte[4] color arrays.
  */
-static GLuint get_surface_type( GLenum type, GLuint size,
-                                GLenum format, GLboolean normalized )
+unsigned
+brw_get_vertex_surface_type(struct brw_context *brw,
+                            const struct gl_client_array *glarray)
 {
+   int size = glarray->Size;
+
    if (unlikely(INTEL_DEBUG & DEBUG_VERTS))
       printf("type %s size %d normalized %d\n", 
-                  _mesa_lookup_enum_by_nr(type), size, normalized);
-
-   if (normalized) {
-      switch (type) {
+             _mesa_lookup_enum_by_nr(glarray->Type),
+             glarray->Size, glarray->Normalized);
+
+   if (glarray->Integer) {
+      assert(glarray->Format == GL_RGBA); /* sanity check */
+      switch (glarray->Type) {
+      case GL_INT: return int_types_direct[size];
+      case GL_SHORT: return short_types_direct[size];
+      case GL_BYTE: return byte_types_direct[size];
+      case GL_UNSIGNED_INT: return uint_types_direct[size];
+      case GL_UNSIGNED_SHORT: return ushort_types_direct[size];
+      case GL_UNSIGNED_BYTE: return ubyte_types_direct[size];
+      default: assert(0); return 0;
+      }
+   } else if (glarray->Normalized) {
+      switch (glarray->Type) {
       case GL_DOUBLE: return double_types[size];
       case GL_FLOAT: return float_types[size];
       case GL_HALF_FLOAT: return half_float_types[size];
@@ -184,7 +255,7 @@ static GLuint get_surface_type( GLenum type, GLuint size,
       case GL_UNSIGNED_INT: return uint_types_norm[size];
       case GL_UNSIGNED_SHORT: return ushort_types_norm[size];
       case GL_UNSIGNED_BYTE:
-         if (format == GL_BGRA) {
+         if (glarray->Format == GL_BGRA) {
             /* See GL_EXT_vertex_array_bgra */
             assert(size == 4);
             return BRW_SURFACEFORMAT_B8G8R8A8_UNORM;
@@ -192,12 +263,63 @@ static GLuint get_surface_type( GLenum type, GLuint size,
          else {
             return ubyte_types_norm[size];
          }
+      case GL_FIXED:
+         if (brw->gen >= 8 || brw->is_haswell)
+            return fixed_point_types[size];
+
+         /* This produces GL_FIXED inputs as values between INT32_MIN and
+          * INT32_MAX, which will be scaled down by 1/65536 by the VS.
+          */
+         return int_types_scale[size];
+      /* See GL_ARB_vertex_type_2_10_10_10_rev.
+       * W/A: Pre-Haswell, the hardware doesn't really support the formats we'd
+       * like to use here, so upload everything as UINT and fix
+       * it in the shader
+       */
+      case GL_INT_2_10_10_10_REV:
+         assert(size == 4);
+         if (brw->gen >= 8 || brw->is_haswell) {
+            return glarray->Format == GL_BGRA
+               ? BRW_SURFACEFORMAT_B10G10R10A2_SNORM
+               : BRW_SURFACEFORMAT_R10G10B10A2_SNORM;
+         }
+         return BRW_SURFACEFORMAT_R10G10B10A2_UINT;
+      case GL_UNSIGNED_INT_2_10_10_10_REV:
+         assert(size == 4);
+         if (brw->gen >= 8 || brw->is_haswell) {
+            return glarray->Format == GL_BGRA
+               ? BRW_SURFACEFORMAT_B10G10R10A2_UNORM
+               : BRW_SURFACEFORMAT_R10G10B10A2_UNORM;
+         }
+         return BRW_SURFACEFORMAT_R10G10B10A2_UINT;
       default: assert(0); return 0;
-      }      
+      }
    }
    else {
-      assert(format == GL_RGBA); /* sanity check */
-      switch (type) {
+      /* See GL_ARB_vertex_type_2_10_10_10_rev.
+       * W/A: the hardware doesn't really support the formats we'd
+       * like to use here, so upload everything as UINT and fix
+       * it in the shader
+       */
+      if (glarray->Type == GL_INT_2_10_10_10_REV) {
+         assert(size == 4);
+         if (brw->gen >= 8 || brw->is_haswell) {
+            return glarray->Format == GL_BGRA
+               ? BRW_SURFACEFORMAT_B10G10R10A2_SSCALED
+               : BRW_SURFACEFORMAT_R10G10B10A2_SSCALED;
+         }
+         return BRW_SURFACEFORMAT_R10G10B10A2_UINT;
+      } else if (glarray->Type == GL_UNSIGNED_INT_2_10_10_10_REV) {
+         assert(size == 4);
+         if (brw->gen >= 8 || brw->is_haswell) {
+            return glarray->Format == GL_BGRA
+               ? BRW_SURFACEFORMAT_B10G10R10A2_USCALED
+               : BRW_SURFACEFORMAT_R10G10B10A2_USCALED;
+         }
+         return BRW_SURFACEFORMAT_R10G10B10A2_UINT;
+      }
+      assert(glarray->Format == GL_RGBA); /* sanity check */
+      switch (glarray->Type) {
       case GL_DOUBLE: return double_types[size];
       case GL_FLOAT: return float_types[size];
       case GL_HALF_FLOAT: return half_float_types[size];
@@ -207,29 +329,21 @@ static GLuint get_surface_type( GLenum type, GLuint size,
       case GL_UNSIGNED_INT: return uint_types_scale[size];
       case GL_UNSIGNED_SHORT: return ushort_types_scale[size];
       case GL_UNSIGNED_BYTE: return ubyte_types_scale[size];
+      case GL_FIXED:
+         if (brw->gen >= 8 || brw->is_haswell)
+            return fixed_point_types[size];
+
+         /* This produces GL_FIXED inputs as values between INT32_MIN and
+          * INT32_MAX, which will be scaled down by 1/65536 by the VS.
+          */
+         return int_types_scale[size];
       default: assert(0); return 0;
       }
    }
 }
 
-
-static GLuint get_size( GLenum type )
-{
-   switch (type) {
-   case GL_DOUBLE: return sizeof(GLdouble);
-   case GL_FLOAT: return sizeof(GLfloat);
-   case GL_HALF_FLOAT: return sizeof(GLhalfARB);
-   case GL_INT: return sizeof(GLint);
-   case GL_SHORT: return sizeof(GLshort);
-   case GL_BYTE: return sizeof(GLbyte);
-   case GL_UNSIGNED_INT: return sizeof(GLuint);
-   case GL_UNSIGNED_SHORT: return sizeof(GLushort);
-   case GL_UNSIGNED_BYTE: return sizeof(GLubyte);
-   default: assert(0); return 0;
-   }
-}
-
-static GLuint get_index_type(GLenum type)
+unsigned
+brw_get_index_type(GLenum type)
 {
    switch (type) {
    case GL_UNSIGNED_BYTE:  return BRW_INDEX_BYTE;
@@ -246,16 +360,31 @@ copy_array_to_vbo_array(struct brw_context *brw,
                        struct brw_vertex_buffer *buffer,
                        GLuint dst_stride)
 {
-   int src_stride = element->glarray->StrideB;
+   const int src_stride = element->glarray->StrideB;
+
+   /* If the source stride is zero, we just want to upload the current
+    * attribute once and set the buffer's stride to 0.  There's no need
+    * to replicate it out.
+    */
+   if (src_stride == 0) {
+      intel_upload_data(brw, element->glarray->Ptr,
+                        element->glarray->_ElementSize,
+                        element->glarray->_ElementSize,
+                       &buffer->bo, &buffer->offset);
+
+      buffer->stride = 0;
+      return;
+   }
+
    const unsigned char *src = element->glarray->Ptr + min * src_stride;
    int count = max - min + 1;
    GLuint size = count * dst_stride;
 
    if (dst_stride == src_stride) {
-      intel_upload_data(&brw->intel, src, size, dst_stride,
+      intel_upload_data(brw, src, size, dst_stride,
                        &buffer->bo, &buffer->offset);
    } else {
-      char * const map = intel_upload_map(&brw->intel, size, dst_stride);
+      char * const map = intel_upload_map(brw, size, dst_stride);
       char *dst = map;
 
       while (count--) {
@@ -263,7 +392,7 @@ copy_array_to_vbo_array(struct brw_context *brw,
         src += src_stride;
         dst += dst_stride;
       }
-      intel_upload_unmap(&brw->intel, map, size, dst_stride,
+      intel_upload_unmap(brw, map, size, dst_stride,
                         &buffer->bo, &buffer->offset);
    }
    buffer->stride = dst_stride;
@@ -271,67 +400,67 @@ copy_array_to_vbo_array(struct brw_context *brw,
 
 static void brw_prepare_vertices(struct brw_context *brw)
 {
-   struct gl_context *ctx = &brw->intel.ctx;
-   struct intel_context *intel = intel_context(ctx);
-   GLbitfield vs_inputs = brw->vs.prog_data->inputs_read;
+   struct gl_context *ctx = &brw->ctx;
+   /* CACHE_NEW_VS_PROG */
+   GLbitfield64 vs_inputs = brw->vs.prog_data->inputs_read;
    const unsigned char *ptr = NULL;
-   GLuint interleaved = 0, total_size = 0;
-   unsigned int min_index = brw->vb.min_index;
-   unsigned int max_index = brw->vb.max_index;
+   GLuint interleaved = 0;
+   unsigned int min_index = brw->vb.min_index + brw->basevertex;
+   unsigned int max_index = brw->vb.max_index + brw->basevertex;
    int delta, i, j;
 
    struct brw_vertex_element *upload[VERT_ATTRIB_MAX];
    GLuint nr_uploads = 0;
 
-   /* First build an array of pointers to ve's in vb.inputs_read
+   /* _NEW_POLYGON
+    *
+    * On gen6+, edge flags don't end up in the VUE (either in or out of the
+    * VS).  Instead, they're uploaded as the last vertex element, and the data
+    * is passed sideband through the fixed function units.  So, we need to
+    * prepare the vertex buffer for it, but it's not present in inputs_read.
     */
+   if (brw->gen >= 6 && (ctx->Polygon.FrontMode != GL_FILL ||
+                           ctx->Polygon.BackMode != GL_FILL)) {
+      vs_inputs |= VERT_BIT_EDGEFLAG;
+   }
+
    if (0)
       printf("%s %d..%d\n", __FUNCTION__, min_index, max_index);
 
    /* Accumulate the list of enabled arrays. */
    brw->vb.nr_enabled = 0;
    while (vs_inputs) {
-      GLuint i = ffs(vs_inputs) - 1;
+      GLuint i = ffsll(vs_inputs) - 1;
       struct brw_vertex_element *input = &brw->vb.inputs[i];
 
-      vs_inputs &= ~(1 << i);
-      if (input->glarray->Size && get_size(input->glarray->Type))
-         brw->vb.enabled[brw->vb.nr_enabled++] = input;
+      vs_inputs &= ~BITFIELD64_BIT(i);
+      brw->vb.enabled[brw->vb.nr_enabled++] = input;
    }
 
    if (brw->vb.nr_enabled == 0)
       return;
 
    if (brw->vb.nr_buffers)
-      goto validate;
-
-   /* XXX: In the rare cases where this happens we fallback all
-    * the way to software rasterization, although a tnl fallback
-    * would be sufficient.  I don't know of *any* real world
-    * cases with > 17 vertex attributes enabled, so it probably
-    * isn't an issue at this point.
-    */
-   if (brw->vb.nr_enabled >= BRW_VEP_MAX) {
-      intel->Fallback = GL_TRUE; /* boolean, not bitfield */
       return;
-   }
 
    for (i = j = 0; i < brw->vb.nr_enabled; i++) {
       struct brw_vertex_element *input = brw->vb.enabled[i];
       const struct gl_client_array *glarray = input->glarray;
-      int type_size = get_size(glarray->Type);
-
-      input->element_size = type_size * glarray->Size;
 
       if (_mesa_is_bufferobj(glarray->BufferObj)) {
         struct intel_buffer_object *intel_buffer =
            intel_buffer_object(glarray->BufferObj);
         int k;
 
+        /* If we have a VB set to be uploaded for this buffer object
+         * already, reuse that VB state so that we emit fewer
+         * relocations.
+         */
         for (k = 0; k < i; k++) {
            const struct gl_client_array *other = brw->vb.enabled[k]->glarray;
            if (glarray->BufferObj == other->BufferObj &&
                glarray->StrideB == other->StrideB &&
+               glarray->InstanceDivisor == other->InstanceDivisor &&
                (uintptr_t)(glarray->Ptr - other->Ptr) < glarray->StrideB)
            {
               input->buffer = brw->vb.enabled[k]->buffer;
@@ -343,12 +472,13 @@ static void brw_prepare_vertices(struct brw_context *brw)
            struct brw_vertex_buffer *buffer = &brw->vb.buffers[j];
 
            /* Named buffer object: Just reference its contents directly. */
-            buffer->bo = intel_bufferobj_source(intel,
-                                                intel_buffer, type_size,
+            buffer->bo = intel_bufferobj_source(brw,
+                                                intel_buffer, 1,
                                                &buffer->offset);
            drm_intel_bo_reference(buffer->bo);
            buffer->offset += (uintptr_t)glarray->Ptr;
            buffer->stride = glarray->StrideB;
+           buffer->step_rate = glarray->InstanceDivisor;
 
            input->buffer = j++;
            input->offset = 0;
@@ -372,30 +502,32 @@ static void brw_prepare_vertices(struct brw_context *brw)
          * when we've decided if we're doing interleaved or not.
          */
         if (nr_uploads == 0) {
-           /* Position array not properly enabled:
-            */
-           if (input->attrib == VERT_ATTRIB_POS && glarray->StrideB == 0) {
-               intel->Fallback = GL_TRUE; /* boolean, not bitfield */
-               return;
-            }
-
            interleaved = glarray->StrideB;
            ptr = glarray->Ptr;
         }
         else if (interleaved != glarray->StrideB ||
-                 (uintptr_t)(glarray->Ptr - ptr) > interleaved)
+                  glarray->Ptr < ptr ||
+                  (uintptr_t)(glarray->Ptr - ptr) + glarray->_ElementSize > interleaved)
         {
-           interleaved = 0;
-        }
-        else if ((uintptr_t)(glarray->Ptr - ptr) & (type_size -1))
-        {
-           /* enforce natural alignment (for doubles) */
+            /* If our stride is different from the first attribute's stride,
+             * or if the first attribute's stride didn't cover our element,
+             * disable the interleaved upload optimization.  The second case
+             * can most commonly occur in cases where there is a single vertex
+             * and, for example, the data is stored on the application's
+             * stack.
+             *
+             * NOTE: This will also disable the optimization in cases where
+             * the data is in a different order than the array indices.
+             * Something like:
+             *
+             *     float data[...];
+             *     glVertexAttribPointer(0, 4, GL_FLOAT, 32, &data[4]);
+             *     glVertexAttribPointer(1, 4, GL_FLOAT, 32, &data[0]);
+             */
            interleaved = 0;
         }
 
         upload[nr_uploads++] = input;
-        total_size = ALIGN(total_size, type_size);
-        total_size += input->element_size;
       }
    }
 
@@ -409,12 +541,10 @@ static void brw_prepare_vertices(struct brw_context *brw)
       brw->vb.start_vertex_bias = -delta;
       delta = 0;
    }
-   if (delta && !brw->intel.intelScreen->relaxed_relocations)
-      min_index = delta = 0;
 
    /* Handle any arrays to be uploaded. */
    if (nr_uploads > 1) {
-      if (interleaved && interleaved <= 2*total_size) {
+      if (interleaved) {
         struct brw_vertex_buffer *buffer = &brw->vb.buffers[j];
         /* All uploads are interleaved, so upload the arrays together as
          * interleaved.  First, upload the contents and set up upload[0].
@@ -431,100 +561,44 @@ static void brw_prepare_vertices(struct brw_context *brw)
         }
         j++;
 
-        nr_uploads = 0;
-      }
-      else if (total_size < 2048) {
-        /* Upload non-interleaved arrays into a single interleaved array */
-        struct brw_vertex_buffer *buffer;
-        int count = max_index - min_index + 1;
-        int offset;
-        char *map;
-
-        map = intel_upload_map(&brw->intel, total_size * count, total_size);
-        for (i = offset = 0; i < nr_uploads; i++) {
-           const unsigned char *src = upload[i]->glarray->Ptr;
-           int size = upload[i]->element_size;
-           int stride = upload[i]->glarray->StrideB;
-           char *dst;
-           int n;
-
-           offset = ALIGN(offset, get_size(upload[i]->glarray->Type));
-           dst = map + offset;
-           src += min_index * stride;
-
-           for (n = 0; n < count; n++) {
-              memcpy(dst, src, size);
-              src += stride;
-              dst += total_size;
-           }
-
-           upload[i]->offset = offset;
-           upload[i]->buffer = j;
-
-           offset += size;
-        }
-        assert(offset == total_size);
-        buffer = &brw->vb.buffers[j++];
-        intel_upload_unmap(&brw->intel, map, offset * count, offset,
-                           &buffer->bo, &buffer->offset);
-        buffer->stride = offset;
-        buffer->offset -= delta * offset;
-
         nr_uploads = 0;
       }
    }
    /* Upload non-interleaved arrays */
    for (i = 0; i < nr_uploads; i++) {
       struct brw_vertex_buffer *buffer = &brw->vb.buffers[j];
-      copy_array_to_vbo_array(brw, upload[i], min_index, max_index,
-                             buffer, upload[i]->element_size);
+      if (upload[i]->glarray->InstanceDivisor == 0) {
+         copy_array_to_vbo_array(brw, upload[i], min_index, max_index,
+                                 buffer, upload[i]->glarray->_ElementSize);
+      } else {
+         /* This is an instanced attribute, since its InstanceDivisor
+          * is not zero. Therefore, its data will be stepped after the
+          * instanced draw has been run InstanceDivisor times.
+          */
+         uint32_t instanced_attr_max_index =
+            (brw->num_instances - 1) / upload[i]->glarray->InstanceDivisor;
+         copy_array_to_vbo_array(brw, upload[i], 0, instanced_attr_max_index,
+                                 buffer, upload[i]->glarray->_ElementSize);
+      }
       buffer->offset -= delta * buffer->stride;
+      buffer->step_rate = upload[i]->glarray->InstanceDivisor;
       upload[i]->buffer = j++;
       upload[i]->offset = 0;
    }
 
-   /* can we simply extend the current vb? */
-   if (j == brw->vb.nr_current_buffers) {
-      int delta = 0;
-      for (i = 0; i < j; i++) {
-        int d;
-
-        if (brw->vb.current_buffers[i].handle != brw->vb.buffers[i].bo->handle ||
-            brw->vb.current_buffers[i].stride != brw->vb.buffers[i].stride)
-           break;
-
-        d = brw->vb.buffers[i].offset - brw->vb.current_buffers[i].offset;
-        if (i == 0)
-           delta = d / brw->vb.current_buffers[i].stride;
-        if (delta * brw->vb.current_buffers[i].stride != d)
-           break;
-      }
-
-      if (i == j) {
-        brw->vb.start_vertex_bias += delta;
-        while (--j >= 0)
-           drm_intel_bo_unreference(brw->vb.buffers[j].bo);
-        j = 0;
-      }
-   }
-
    brw->vb.nr_buffers = j;
-
-validate:
-   brw_prepare_query_begin(brw);
-   for (i = 0; i < brw->vb.nr_buffers; i++) {
-      brw_add_validated_bo(brw, brw->vb.buffers[i].bo);
-   }
 }
 
 static void brw_emit_vertices(struct brw_context *brw)
 {
-   struct gl_context *ctx = &brw->intel.ctx;
-   struct intel_context *intel = intel_context(ctx);
-   GLuint i;
+   GLuint i, nr_elements;
+
+   brw_prepare_vertices(brw);
 
    brw_emit_query_begin(brw);
 
+   nr_elements = brw->vb.nr_enabled + brw->vs.prog_data->uses_vertexid;
+
    /* If the VS doesn't read any inputs (calculating vertex position from
     * a state variable for some reason, for example), emit a single pad
     * VERTEX_ELEMENT struct and bail.
@@ -532,10 +606,10 @@ static void brw_emit_vertices(struct brw_context *brw)
     * The stale VB state stays in place, but they don't do anything unless
     * a VE loads from them.
     */
-   if (brw->vb.nr_enabled == 0) {
+   if (nr_elements == 0) {
       BEGIN_BATCH(3);
-      OUT_BATCH((CMD_VERTEX_ELEMENT << 16) | 1);
-      if (intel->gen >= 6) {
+      OUT_BATCH((_3DSTATE_VERTEX_ELEMENTS << 16) | 1);
+      if (brw->gen >= 6) {
         OUT_BATCH((0 << GEN6_VE0_INDEX_SHIFT) |
                   GEN6_VE0_VALID |
                   (BRW_SURFACEFORMAT_R32G32B32A32_FLOAT << BRW_VE0_FORMAT_SHIFT) |
@@ -558,59 +632,98 @@ static void brw_emit_vertices(struct brw_context *brw)
     */
 
    if (brw->vb.nr_buffers) {
+      if (brw->gen >= 6) {
+        assert(brw->vb.nr_buffers <= 33);
+      } else {
+        assert(brw->vb.nr_buffers <= 17);
+      }
+
       BEGIN_BATCH(1 + 4*brw->vb.nr_buffers);
-      OUT_BATCH((CMD_VERTEX_BUFFER << 16) | (4*brw->vb.nr_buffers - 1));
+      OUT_BATCH((_3DSTATE_VERTEX_BUFFERS << 16) | (4*brw->vb.nr_buffers - 1));
       for (i = 0; i < brw->vb.nr_buffers; i++) {
         struct brw_vertex_buffer *buffer = &brw->vb.buffers[i];
         uint32_t dw0;
 
-        if (intel->gen >= 6) {
-           dw0 = GEN6_VB0_ACCESS_VERTEXDATA | (i << GEN6_VB0_INDEX_SHIFT);
+        if (brw->gen >= 6) {
+           dw0 = buffer->step_rate
+                    ? GEN6_VB0_ACCESS_INSTANCEDATA
+                    : GEN6_VB0_ACCESS_VERTEXDATA;
+           dw0 |= i << GEN6_VB0_INDEX_SHIFT;
         } else {
-           dw0 = BRW_VB0_ACCESS_VERTEXDATA | (i << BRW_VB0_INDEX_SHIFT);
+           dw0 = buffer->step_rate
+                    ? BRW_VB0_ACCESS_INSTANCEDATA
+                    : BRW_VB0_ACCESS_VERTEXDATA;
+           dw0 |= i << BRW_VB0_INDEX_SHIFT;
         }
 
-        if (intel->gen >= 7)
+        if (brw->gen >= 7)
            dw0 |= GEN7_VB0_ADDRESS_MODIFYENABLE;
 
+         if (brw->gen == 7)
+           dw0 |= GEN7_MOCS_L3 << 16;
+
         OUT_BATCH(dw0 | (buffer->stride << BRW_VB0_PITCH_SHIFT));
         OUT_RELOC(buffer->bo, I915_GEM_DOMAIN_VERTEX, 0, buffer->offset);
-        if (intel->gen >= 5) {
+        if (brw->gen >= 5) {
            OUT_RELOC(buffer->bo, I915_GEM_DOMAIN_VERTEX, 0, buffer->bo->size - 1);
         } else
            OUT_BATCH(0);
-        OUT_BATCH(0); /* Instance data step rate */
-
-        brw->vb.current_buffers[i].handle = buffer->bo->handle;
-        brw->vb.current_buffers[i].offset = buffer->offset;
-        brw->vb.current_buffers[i].stride = buffer->stride;
+        OUT_BATCH(buffer->step_rate);
       }
-      brw->vb.nr_current_buffers = i;
       ADVANCE_BATCH();
    }
 
-   BEGIN_BATCH(1 + brw->vb.nr_enabled * 2);
-   OUT_BATCH((CMD_VERTEX_ELEMENT << 16) | (2*brw->vb.nr_enabled - 1));
+   /* The hardware allows one more VERTEX_ELEMENTS than VERTEX_BUFFERS, presumably
+    * for VertexID/InstanceID.
+    */
+   if (brw->gen >= 6) {
+      assert(nr_elements <= 34);
+   } else {
+      assert(nr_elements <= 18);
+   }
+
+   struct brw_vertex_element *gen6_edgeflag_input = NULL;
+
+   BEGIN_BATCH(1 + nr_elements * 2);
+   OUT_BATCH((_3DSTATE_VERTEX_ELEMENTS << 16) | (2 * nr_elements - 1));
    for (i = 0; i < brw->vb.nr_enabled; i++) {
       struct brw_vertex_element *input = brw->vb.enabled[i];
-      uint32_t format = get_surface_type(input->glarray->Type,
-                                        input->glarray->Size,
-                                        input->glarray->Format,
-                                        input->glarray->Normalized);
+      uint32_t format = brw_get_vertex_surface_type(brw, input->glarray);
       uint32_t comp0 = BRW_VE1_COMPONENT_STORE_SRC;
       uint32_t comp1 = BRW_VE1_COMPONENT_STORE_SRC;
       uint32_t comp2 = BRW_VE1_COMPONENT_STORE_SRC;
       uint32_t comp3 = BRW_VE1_COMPONENT_STORE_SRC;
 
+      /* The gen4 driver expects edgeflag to come in as a float, and passes
+       * that float on to the tests in the clipper.  Mesa's current vertex
+       * attribute value for EdgeFlag is stored as a float, which works out.
+       * glEdgeFlagPointer, on the other hand, gives us an unnormalized
+       * integer ubyte.  Just rewrite that to convert to a float.
+       */
+      if (input->attrib == VERT_ATTRIB_EDGEFLAG) {
+         /* Gen6+ passes edgeflag as sideband along with the vertex, instead
+          * of in the VUE.  We have to upload it sideband as the last vertex
+          * element according to the B-Spec.
+          */
+         if (brw->gen >= 6) {
+            gen6_edgeflag_input = input;
+            continue;
+         }
+
+         if (format == BRW_SURFACEFORMAT_R8_UINT)
+            format = BRW_SURFACEFORMAT_R8_SSCALED;
+      }
+
       switch (input->glarray->Size) {
       case 0: comp0 = BRW_VE1_COMPONENT_STORE_0;
       case 1: comp1 = BRW_VE1_COMPONENT_STORE_0;
       case 2: comp2 = BRW_VE1_COMPONENT_STORE_0;
-      case 3: comp3 = BRW_VE1_COMPONENT_STORE_1_FLT;
+      case 3: comp3 = input->glarray->Integer ? BRW_VE1_COMPONENT_STORE_1_INT
+                                              : BRW_VE1_COMPONENT_STORE_1_FLT;
         break;
       }
 
-      if (intel->gen >= 6) {
+      if (brw->gen >= 6) {
         OUT_BATCH((input->buffer << GEN6_VE0_INDEX_SHIFT) |
                   GEN6_VE0_VALID |
                   (format << BRW_VE0_FORMAT_SHIFT) |
@@ -622,7 +735,7 @@ static void brw_emit_vertices(struct brw_context *brw)
                   (input->offset << BRW_VE0_SRC_OFFSET_SHIFT));
       }
 
-      if (intel->gen >= 5)
+      if (brw->gen >= 5)
           OUT_BATCH((comp0 << BRW_VE1_COMPONENT_0_SHIFT) |
                     (comp1 << BRW_VE1_COMPONENT_1_SHIFT) |
                     (comp2 << BRW_VE1_COMPONENT_2_SHIFT) |
@@ -634,23 +747,60 @@ static void brw_emit_vertices(struct brw_context *brw)
                     (comp3 << BRW_VE1_COMPONENT_3_SHIFT) |
                     ((i * 4) << BRW_VE1_DST_OFFSET_SHIFT));
    }
+
+   if (brw->gen >= 6 && gen6_edgeflag_input) {
+      uint32_t format =
+         brw_get_vertex_surface_type(brw, gen6_edgeflag_input->glarray);
+
+      OUT_BATCH((gen6_edgeflag_input->buffer << GEN6_VE0_INDEX_SHIFT) |
+                GEN6_VE0_VALID |
+                GEN6_VE0_EDGE_FLAG_ENABLE |
+                (format << BRW_VE0_FORMAT_SHIFT) |
+                (gen6_edgeflag_input->offset << BRW_VE0_SRC_OFFSET_SHIFT));
+      OUT_BATCH((BRW_VE1_COMPONENT_STORE_SRC << BRW_VE1_COMPONENT_0_SHIFT) |
+                (BRW_VE1_COMPONENT_STORE_0 << BRW_VE1_COMPONENT_1_SHIFT) |
+                (BRW_VE1_COMPONENT_STORE_0 << BRW_VE1_COMPONENT_2_SHIFT) |
+                (BRW_VE1_COMPONENT_STORE_0 << BRW_VE1_COMPONENT_3_SHIFT));
+   }
+
+   if (brw->vs.prog_data->uses_vertexid) {
+      uint32_t dw0 = 0, dw1 = 0;
+
+      dw1 = ((BRW_VE1_COMPONENT_STORE_VID << BRW_VE1_COMPONENT_0_SHIFT) |
+            (BRW_VE1_COMPONENT_STORE_IID << BRW_VE1_COMPONENT_1_SHIFT) |
+            (BRW_VE1_COMPONENT_STORE_0 << BRW_VE1_COMPONENT_2_SHIFT) |
+            (BRW_VE1_COMPONENT_STORE_0 << BRW_VE1_COMPONENT_3_SHIFT));
+
+      if (brw->gen >= 6) {
+        dw0 |= GEN6_VE0_VALID;
+      } else {
+        dw0 |= BRW_VE0_VALID;
+        dw1 |= (i * 4) << BRW_VE1_DST_OFFSET_SHIFT;
+      }
+
+      /* Note that for gl_VertexID, gl_InstanceID, and gl_PrimitiveID values,
+       * the format is ignored and the value is always int.
+       */
+
+      OUT_BATCH(dw0);
+      OUT_BATCH(dw1);
+   }
+
    CACHED_BATCH();
 }
 
 const struct brw_tracked_state brw_vertices = {
    .dirty = {
-      .mesa = 0,
+      .mesa = _NEW_POLYGON,
       .brw = BRW_NEW_BATCH | BRW_NEW_VERTICES,
-      .cache = 0,
+      .cache = CACHE_NEW_VS_PROG,
    },
-   .prepare = brw_prepare_vertices,
    .emit = brw_emit_vertices,
 };
 
-static void brw_prepare_indices(struct brw_context *brw)
+static void brw_upload_indices(struct brw_context *brw)
 {
-   struct gl_context *ctx = &brw->intel.ctx;
-   struct intel_context *intel = &brw->intel;
+   struct gl_context *ctx = &brw->ctx;
    const struct _mesa_index_buffer *index_buffer = brw->ib.ib;
    GLuint ib_size;
    drm_intel_bo *bo = NULL;
@@ -661,7 +811,7 @@ static void brw_prepare_indices(struct brw_context *brw)
    if (index_buffer == NULL)
       return;
 
-   ib_type_size = get_size(index_buffer->type);
+   ib_type_size = _mesa_sizeof_type(index_buffer->type);
    ib_size = ib_type_size * index_buffer->count;
    bufferobj = index_buffer->obj;
 
@@ -671,7 +821,7 @@ static void brw_prepare_indices(struct brw_context *brw)
 
       /* Get new bufferobj, offset:
        */
-      intel_upload_data(&brw->intel, index_buffer->ptr, ib_size, ib_type_size,
+      intel_upload_data(brw, index_buffer->ptr, ib_size, ib_type_size,
                        &bo, &offset);
       brw->ib.start_vertex_offset = offset / ib_type_size;
    } else {
@@ -680,18 +830,20 @@ static void brw_prepare_indices(struct brw_context *brw)
       /* If the index buffer isn't aligned to its element size, we have to
        * rebase it into a temporary.
        */
-       if ((get_size(index_buffer->type) - 1) & offset) {
-           GLubyte *map = ctx->Driver.MapBuffer(ctx,
-                                                GL_ELEMENT_ARRAY_BUFFER_ARB,
-                                                GL_DYNAMIC_DRAW_ARB,
-                                                bufferobj);
-           map += offset;
-
-          intel_upload_data(&brw->intel, map, ib_size, ib_type_size,
-                            &bo, &offset);
-          brw->ib.start_vertex_offset = offset / ib_type_size;
-
-           ctx->Driver.UnmapBuffer(ctx, GL_ELEMENT_ARRAY_BUFFER_ARB, bufferobj);
+       if ((ib_type_size - 1) & offset) {
+          perf_debug("copying index buffer to a temporary to work around "
+                     "misaligned offset %d\n", offset);
+
+          GLubyte *map = ctx->Driver.MapBufferRange(ctx,
+                                                    offset,
+                                                    ib_size,
+                                                    GL_MAP_READ_BIT,
+                                                    bufferobj);
+
+          intel_upload_data(brw, map, ib_size, ib_type_size, &bo, &offset);
+          brw->ib.start_vertex_offset = offset / ib_type_size;
+
+          ctx->Driver.UnmapBuffer(ctx, bufferobj);
        } else {
          /* Use CMD_3D_PRIM's start_vertex_offset to avoid re-uploading
           * the index buffer state when we're just moving the start index
@@ -699,7 +851,7 @@ static void brw_prepare_indices(struct brw_context *brw)
           */
          brw->ib.start_vertex_offset = offset / ib_type_size;
 
-         bo = intel_bufferobj_source(intel,
+         bo = intel_bufferobj_source(brw,
                                      intel_buffer_object(bufferobj),
                                      ib_type_size,
                                      &offset);
@@ -713,7 +865,6 @@ static void brw_prepare_indices(struct brw_context *brw)
       drm_intel_bo_unreference(brw->ib.bo);
       brw->ib.bo = bo;
 
-      brw_add_validated_bo(brw, brw->ib.bo);
       brw->state.dirty.brw |= BRW_NEW_INDEX_BUFFER;
    } else {
       drm_intel_bo_unreference(bo);
@@ -731,21 +882,27 @@ const struct brw_tracked_state brw_indices = {
       .brw = BRW_NEW_INDICES,
       .cache = 0,
    },
-   .prepare = brw_prepare_indices,
+   .emit = brw_upload_indices,
 };
 
 static void brw_emit_index_buffer(struct brw_context *brw)
 {
-   struct intel_context *intel = &brw->intel;
    const struct _mesa_index_buffer *index_buffer = brw->ib.ib;
+   GLuint cut_index_setting;
 
    if (index_buffer == NULL)
       return;
 
+   if (brw->prim_restart.enable_cut_index && !brw->is_haswell) {
+      cut_index_setting = BRW_CUT_INDEX_ENABLE;
+   } else {
+      cut_index_setting = 0;
+   }
+
    BEGIN_BATCH(3);
    OUT_BATCH(CMD_INDEX_BUFFER << 16 |
-             /* cut index enable << 10 */
-             get_index_type(index_buffer->type) << 8 |
+             cut_index_setting |
+             brw_get_index_type(index_buffer->type) << 8 |
              1);
    OUT_RELOC(brw->ib.bo,
              I915_GEM_DOMAIN_VERTEX, 0,