mesa/st: handle gl_Layer input semantic
[mesa.git] / src / mesa / state_tracker / st_draw.c
index d6e67b7fb85f2a3ba7f7c7e394230c985bddd4f9..c8189faade58cb8dad212c52e978e7ad1a01d547 100644 (file)
@@ -1,8 +1,8 @@
 /**************************************************************************
- * 
- * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
+ *
+ * Copyright 2007 VMware, Inc.
  * All Rights Reserved.
- * 
+ *
  * 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
  * 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 TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS 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.
- * 
+ *
  **************************************************************************/
 
 /*
  * this function whether the user called glBegin/End, glDrawArrays,
  * glDrawElements, glEvalMesh, or glCalList, etc.
  *
- * We basically convert the VBO's vertex attribute/array information into
- * Gallium vertex state, bind the vertex buffer objects and call
- * pipe->draw_elements(), pipe->draw_range_elements() or pipe->draw_arrays().
- *
  * Authors:
- *   Keith Whitwell <keith@tungstengraphics.com>
+ *   Keith Whitwell <keithw@vmware.com>
  */
 
 
 #include "main/imports.h"
 #include "main/image.h"
+#include "main/bufferobj.h"
 #include "main/macros.h"
-#include "main/mfeatures.h"
-#include "program/prog_uniform.h"
 
 #include "vbo/vbo.h"
 
 #include "st_context.h"
 #include "st_atom.h"
 #include "st_cb_bufferobjects.h"
+#include "st_cb_xformfb.h"
+#include "st_debug.h"
 #include "st_draw.h"
 #include "st_program.h"
 
 #include "util/u_format.h"
 #include "util/u_prim.h"
 #include "util/u_draw_quad.h"
+#include "util/u_upload_mgr.h"
 #include "draw/draw_context.h"
 #include "cso_cache/cso_context.h"
 
-
-static GLuint double_types[4] = {
-   PIPE_FORMAT_R64_FLOAT,
-   PIPE_FORMAT_R64G64_FLOAT,
-   PIPE_FORMAT_R64G64B64_FLOAT,
-   PIPE_FORMAT_R64G64B64A64_FLOAT
-};
-
-static GLuint float_types[4] = {
-   PIPE_FORMAT_R32_FLOAT,
-   PIPE_FORMAT_R32G32_FLOAT,
-   PIPE_FORMAT_R32G32B32_FLOAT,
-   PIPE_FORMAT_R32G32B32A32_FLOAT
-};
-
-static GLuint half_float_types[4] = {
-   PIPE_FORMAT_R16_FLOAT,
-   PIPE_FORMAT_R16G16_FLOAT,
-   PIPE_FORMAT_R16G16B16_FLOAT,
-   PIPE_FORMAT_R16G16B16A16_FLOAT
-};
-
-static GLuint uint_types_norm[4] = {
-   PIPE_FORMAT_R32_UNORM,
-   PIPE_FORMAT_R32G32_UNORM,
-   PIPE_FORMAT_R32G32B32_UNORM,
-   PIPE_FORMAT_R32G32B32A32_UNORM
-};
-
-static GLuint uint_types_scale[4] = {
-   PIPE_FORMAT_R32_USCALED,
-   PIPE_FORMAT_R32G32_USCALED,
-   PIPE_FORMAT_R32G32B32_USCALED,
-   PIPE_FORMAT_R32G32B32A32_USCALED
-};
-
-static GLuint int_types_norm[4] = {
-   PIPE_FORMAT_R32_SNORM,
-   PIPE_FORMAT_R32G32_SNORM,
-   PIPE_FORMAT_R32G32B32_SNORM,
-   PIPE_FORMAT_R32G32B32A32_SNORM
-};
-
-static GLuint int_types_scale[4] = {
-   PIPE_FORMAT_R32_SSCALED,
-   PIPE_FORMAT_R32G32_SSCALED,
-   PIPE_FORMAT_R32G32B32_SSCALED,
-   PIPE_FORMAT_R32G32B32A32_SSCALED
-};
-
-static GLuint ushort_types_norm[4] = {
-   PIPE_FORMAT_R16_UNORM,
-   PIPE_FORMAT_R16G16_UNORM,
-   PIPE_FORMAT_R16G16B16_UNORM,
-   PIPE_FORMAT_R16G16B16A16_UNORM
-};
-
-static GLuint ushort_types_scale[4] = {
-   PIPE_FORMAT_R16_USCALED,
-   PIPE_FORMAT_R16G16_USCALED,
-   PIPE_FORMAT_R16G16B16_USCALED,
-   PIPE_FORMAT_R16G16B16A16_USCALED
-};
-
-static GLuint short_types_norm[4] = {
-   PIPE_FORMAT_R16_SNORM,
-   PIPE_FORMAT_R16G16_SNORM,
-   PIPE_FORMAT_R16G16B16_SNORM,
-   PIPE_FORMAT_R16G16B16A16_SNORM
-};
-
-static GLuint short_types_scale[4] = {
-   PIPE_FORMAT_R16_SSCALED,
-   PIPE_FORMAT_R16G16_SSCALED,
-   PIPE_FORMAT_R16G16B16_SSCALED,
-   PIPE_FORMAT_R16G16B16A16_SSCALED
-};
-
-static GLuint ubyte_types_norm[4] = {
-   PIPE_FORMAT_R8_UNORM,
-   PIPE_FORMAT_R8G8_UNORM,
-   PIPE_FORMAT_R8G8B8_UNORM,
-   PIPE_FORMAT_R8G8B8A8_UNORM
-};
-
-static GLuint ubyte_types_scale[4] = {
-   PIPE_FORMAT_R8_USCALED,
-   PIPE_FORMAT_R8G8_USCALED,
-   PIPE_FORMAT_R8G8B8_USCALED,
-   PIPE_FORMAT_R8G8B8A8_USCALED
-};
-
-static GLuint byte_types_norm[4] = {
-   PIPE_FORMAT_R8_SNORM,
-   PIPE_FORMAT_R8G8_SNORM,
-   PIPE_FORMAT_R8G8B8_SNORM,
-   PIPE_FORMAT_R8G8B8A8_SNORM
-};
-
-static GLuint byte_types_scale[4] = {
-   PIPE_FORMAT_R8_SSCALED,
-   PIPE_FORMAT_R8G8_SSCALED,
-   PIPE_FORMAT_R8G8B8_SSCALED,
-   PIPE_FORMAT_R8G8B8A8_SSCALED
-};
-
-static GLuint fixed_types[4] = {
-   PIPE_FORMAT_R32_FIXED,
-   PIPE_FORMAT_R32G32_FIXED,
-   PIPE_FORMAT_R32G32B32_FIXED,
-   PIPE_FORMAT_R32G32B32A32_FIXED
-};
-
+#include "../glsl/ir_uniform.h"
 
 
 /**
- * Return a PIPE_FORMAT_x for the given GL datatype and size.
- */
-GLuint
-st_pipe_vertex_format(GLenum type, GLuint size, GLenum format,
-                      GLboolean normalized)
-{
-   assert((type >= GL_BYTE && type <= GL_DOUBLE) ||
-          type == GL_FIXED || type == GL_HALF_FLOAT);
-   assert(size >= 1);
-   assert(size <= 4);
-   assert(format == GL_RGBA || format == GL_BGRA);
-
-   if (format == GL_BGRA) {
-      /* this is an odd-ball case */
-      assert(type == GL_UNSIGNED_BYTE);
-      assert(normalized);
-      return PIPE_FORMAT_B8G8R8A8_UNORM;
-   }
-
-   if (normalized) {
-      switch (type) {
-      case GL_DOUBLE: return double_types[size-1];
-      case GL_FLOAT: return float_types[size-1];
-      case GL_HALF_FLOAT: return half_float_types[size-1];
-      case GL_INT: return int_types_norm[size-1];
-      case GL_SHORT: return short_types_norm[size-1];
-      case GL_BYTE: return byte_types_norm[size-1];
-      case GL_UNSIGNED_INT: return uint_types_norm[size-1];
-      case GL_UNSIGNED_SHORT: return ushort_types_norm[size-1];
-      case GL_UNSIGNED_BYTE: return ubyte_types_norm[size-1];
-      case GL_FIXED: return fixed_types[size-1];
-      default: assert(0); return 0;
-      }      
-   }
-   else {
-      switch (type) {
-      case GL_DOUBLE: return double_types[size-1];
-      case GL_FLOAT: return float_types[size-1];
-      case GL_HALF_FLOAT: return half_float_types[size-1];
-      case GL_INT: return int_types_scale[size-1];
-      case GL_SHORT: return short_types_scale[size-1];
-      case GL_BYTE: return byte_types_scale[size-1];
-      case GL_UNSIGNED_INT: return uint_types_scale[size-1];
-      case GL_UNSIGNED_SHORT: return ushort_types_scale[size-1];
-      case GL_UNSIGNED_BYTE: return ubyte_types_scale[size-1];
-      case GL_FIXED: return fixed_types[size-1];
-      default: assert(0); return 0;
-      }      
-   }
-   return 0; /* silence compiler warning */
-}
-
-
-
-
-
-/**
- * Examine the active arrays to determine if we have interleaved
- * vertex arrays all living in one VBO, or all living in user space.
- * \param userSpace  returns whether the arrays are in user space.
+ * This is very similar to vbo_all_varyings_in_vbos() but we are
+ * only interested in per-vertex data.  See bug 38626.
  */
 static GLboolean
-is_interleaved_arrays(const struct st_vertex_program *vp,
-                      const struct st_vp_variant *vpv,
-                      const struct gl_client_array **arrays)
+all_varyings_in_vbos(const struct gl_client_array *arrays[])
 {
-   GLuint attr;
-   const struct gl_buffer_object *firstBufObj = NULL;
-   GLint firstStride = -1;
-   const GLubyte *client_addr = NULL;
-   GLboolean user_memory;
-
-   for (attr = 0; attr < vpv->num_inputs; attr++) {
-      const GLuint mesaAttr = vp->index_to_input[attr];
-      const struct gl_buffer_object *bufObj = arrays[mesaAttr]->BufferObj;
-      const GLsizei stride = arrays[mesaAttr]->StrideB; /* in bytes */
-
-      if (firstStride < 0) {
-         firstStride = stride;
-         user_memory = !bufObj || !bufObj->Name;
-      }
-      else if (firstStride != stride) {
-         return GL_FALSE;
-      }
+   GLuint i;
 
-      if (!bufObj || !bufObj->Name) {
-         /* Try to detect if the client-space arrays are
-          * "close" to each other.
-          */
-         if (!user_memory) {
-            return GL_FALSE;
-         }
-         if (!client_addr) {
-            client_addr = arrays[mesaAttr]->Ptr;
-         }
-         else if (abs(arrays[mesaAttr]->Ptr - client_addr) > firstStride) {
-            /* arrays start too far apart */
-            return GL_FALSE;
-         }
-      }
-      else if (!firstBufObj) {
-         if (user_memory) {
-            return GL_FALSE;
-         }
-         firstBufObj = bufObj;
-      }
-      else if (bufObj != firstBufObj) {
-         return GL_FALSE;
-      }
-   }
+   for (i = 0; i < VERT_ATTRIB_MAX; i++)
+      if (arrays[i]->StrideB &&
+          !arrays[i]->InstanceDivisor &&
+          !_mesa_is_bufferobj(arrays[i]->BufferObj))
+        return GL_FALSE;
 
    return GL_TRUE;
 }
 
 
 /**
- * Set up for drawing interleaved arrays that all live in one VBO
- * or all live in user space.
- * \param vbuffer  returns vertex buffer info
- * \param velements  returns vertex element info
+ * Basically, translate Mesa's index buffer information into
+ * a pipe_index_buffer object.
+ * \return TRUE or FALSE for success/failure
  */
-static void
-setup_interleaved_attribs(struct gl_context *ctx,
-                          const struct st_vertex_program *vp,
-                          const struct st_vp_variant *vpv,
-                          const struct gl_client_array **arrays,
-                          struct pipe_vertex_buffer *vbuffer,
-                          struct pipe_vertex_element velements[],
-                          unsigned max_index,
-                          unsigned num_instances)
+static boolean
+setup_index_buffer(struct st_context *st,
+                   const struct _mesa_index_buffer *ib,
+                   struct pipe_index_buffer *ibuffer)
 {
-   struct st_context *st = st_context(ctx);
-   struct pipe_context *pipe = st->pipe;
-   GLuint attr;
-   const GLubyte *low_addr = NULL;
+   struct gl_buffer_object *bufobj = ib->obj;
 
-   /* Find the lowest address. */
-   if(vpv->num_inputs) {
-      low_addr = arrays[vp->index_to_input[0]]->Ptr;
+   ibuffer->index_size = vbo_sizeof_ib_type(ib->type);
 
-      for (attr = 1; attr < vpv->num_inputs; attr++) {
-         const GLubyte *start = arrays[vp->index_to_input[attr]]->Ptr;
-         low_addr = MIN2(low_addr, start);
-      }
+   /* get/create the index buffer object */
+   if (_mesa_is_bufferobj(bufobj)) {
+      /* indices are in a real VBO */
+      ibuffer->buffer = st_buffer_object(bufobj)->buffer;
+      ibuffer->offset = pointer_to_offset(ib->ptr);
    }
-
-   for (attr = 0; attr < vpv->num_inputs; attr++) {
-      const GLuint mesaAttr = vp->index_to_input[attr];
-      struct gl_buffer_object *bufobj = arrays[mesaAttr]->BufferObj;
-      struct st_buffer_object *stobj = st_buffer_object(bufobj);
-      GLsizei stride = arrays[mesaAttr]->StrideB;
-
-      if (attr == 0) {
-         if (bufobj && bufobj->Name) {
-            vbuffer->buffer = NULL;
-            pipe_resource_reference(&vbuffer->buffer, stobj->buffer);
-            vbuffer->buffer_offset = pointer_to_offset(low_addr);
-         } else {
-            uint divisor = arrays[mesaAttr]->InstanceDivisor;
-            uint length = (divisor ? num_instances / divisor : max_index) + 1;
-            vbuffer->buffer =
-               pipe_user_buffer_create(pipe->screen, (void*)low_addr,
-                                       stride * length,
-                                      PIPE_BIND_VERTEX_BUFFER);
-            vbuffer->buffer_offset = 0;
-
-            /* Track user vertex buffers. */
-            pipe_resource_reference(&st->user_vb[0], vbuffer->buffer);
-            st->user_vb_stride[0] = stride;
-            st->num_user_vbs = 1;
-         }
-         vbuffer->stride = stride; /* in bytes */
+   else if (st->indexbuf_uploader) {
+      /* upload indexes from user memory into a real buffer */
+      if (u_upload_data(st->indexbuf_uploader, 0,
+                        ib->count * ibuffer->index_size, ib->ptr,
+                        &ibuffer->offset, &ibuffer->buffer) != PIPE_OK) {
+         /* out of memory */
+         return FALSE;
       }
-
-      velements[attr].src_offset =
-         (unsigned) (arrays[mesaAttr]->Ptr - low_addr);
-      velements[attr].instance_divisor = arrays[mesaAttr]->InstanceDivisor;
-      velements[attr].vertex_buffer_index = 0;
-      velements[attr].src_format =
-         st_pipe_vertex_format(arrays[mesaAttr]->Type,
-                               arrays[mesaAttr]->Size,
-                               arrays[mesaAttr]->Format,
-                               arrays[mesaAttr]->Normalized);
-      assert(velements[attr].src_format);
+      u_upload_unmap(st->indexbuf_uploader);
    }
-}
-
-
-/**
- * Set up a separate pipe_vertex_buffer and pipe_vertex_element for each
- * vertex attribute.
- * \param vbuffer  returns vertex buffer info
- * \param velements  returns vertex element info
- */
-static void
-setup_non_interleaved_attribs(struct gl_context *ctx,
-                              const struct st_vertex_program *vp,
-                              const struct st_vp_variant *vpv,
-                              const struct gl_client_array **arrays,
-                              struct pipe_vertex_buffer vbuffer[],
-                              struct pipe_vertex_element velements[],
-                              unsigned max_index,
-                              unsigned num_instances)
-{
-   struct st_context *st = st_context(ctx);
-   struct pipe_context *pipe = st->pipe;
-   GLuint attr;
-
-   for (attr = 0; attr < vpv->num_inputs; attr++) {
-      const GLuint mesaAttr = vp->index_to_input[attr];
-      struct gl_buffer_object *bufobj = arrays[mesaAttr]->BufferObj;
-      GLsizei stride = arrays[mesaAttr]->StrideB;
-
-      if (bufobj && bufobj->Name) {
-         /* Attribute data is in a VBO.
-          * Recall that for VBOs, the gl_client_array->Ptr field is
-          * really an offset from the start of the VBO, not a pointer.
-          */
-         struct st_buffer_object *stobj = st_buffer_object(bufobj);
-         assert(stobj->buffer);
-
-         vbuffer[attr].buffer = NULL;
-         pipe_resource_reference(&vbuffer[attr].buffer, stobj->buffer);
-         vbuffer[attr].buffer_offset = pointer_to_offset(arrays[mesaAttr]->Ptr);
-      }
-      else {
-         /* wrap user data */
-         if (arrays[mesaAttr]->Ptr) {
-            uint divisor = arrays[mesaAttr]->InstanceDivisor;
-            uint length = (divisor ? num_instances / divisor : max_index) + 1;
-            vbuffer[attr].buffer =
-              pipe_user_buffer_create(pipe->screen,
-                                      (void *) arrays[mesaAttr]->Ptr,
-                                      stride * length,
-                                      PIPE_BIND_VERTEX_BUFFER);
-         }
-         else {
-            /* no array, use ctx->Current.Attrib[] value */
-            uint bytes = sizeof(ctx->Current.Attrib[0]);
-            vbuffer[attr].buffer =
-              pipe_user_buffer_create(pipe->screen,
-                                      (void *) ctx->Current.Attrib[mesaAttr],
-                                      bytes,
-                                      PIPE_BIND_VERTEX_BUFFER);
-            stride = 0;
-         }
-
-         vbuffer[attr].buffer_offset = 0;
-
-         /* Track user vertex buffers. */
-         pipe_resource_reference(&st->user_vb[attr], vbuffer->buffer);
-         st->user_vb_stride[attr] = stride;
-         st->num_user_vbs = MAX2(st->num_user_vbs, attr+1);
-      }
-
-      /* common-case setup */
-      vbuffer[attr].stride = stride; /* in bytes */
-
-      velements[attr].src_offset = 0;
-      velements[attr].instance_divisor = arrays[mesaAttr]->InstanceDivisor;
-      velements[attr].vertex_buffer_index = attr;
-      velements[attr].src_format
-         = st_pipe_vertex_format(arrays[mesaAttr]->Type,
-                                 arrays[mesaAttr]->Size,
-                                 arrays[mesaAttr]->Format,
-                                 arrays[mesaAttr]->Normalized);
-      assert(velements[attr].src_format);
+   else {
+      /* indices are in user space memory */
+      ibuffer->user_buffer = ib->ptr;
    }
-}
-
 
-static void
-setup_index_buffer(struct gl_context *ctx,
-                   const struct _mesa_index_buffer *ib,
-                   struct pipe_index_buffer *ibuffer)
-{
-   struct st_context *st = st_context(ctx);
-   struct pipe_context *pipe = st->pipe;
-
-   memset(ibuffer, 0, sizeof(*ibuffer));
-   if (ib) {
-      struct gl_buffer_object *bufobj = ib->obj;
-
-      switch (ib->type) {
-      case GL_UNSIGNED_INT:
-         ibuffer->index_size = 4;
-         break;
-      case GL_UNSIGNED_SHORT:
-         ibuffer->index_size = 2;
-         break;
-      case GL_UNSIGNED_BYTE:
-         ibuffer->index_size = 1;
-         break;
-      default:
-         assert(0);
-        return;
-      }
-
-      /* get/create the index buffer object */
-      if (bufobj && bufobj->Name) {
-         /* elements/indexes are in a real VBO */
-         struct st_buffer_object *stobj = st_buffer_object(bufobj);
-         pipe_resource_reference(&ibuffer->buffer, stobj->buffer);
-         ibuffer->offset = pointer_to_offset(ib->ptr);
-      }
-      else {
-         /* element/indicies are in user space memory */
-         ibuffer->buffer =
-            pipe_user_buffer_create(pipe->screen, (void *) ib->ptr,
-                                    ib->count * ibuffer->index_size,
-                                    PIPE_BIND_INDEX_BUFFER);
-      }
-   }
+   cso_set_index_buffer(st->cso_context, ibuffer);
+   return TRUE;
 }
 
+
 /**
  * Prior to drawing, check that any uniforms referenced by the
  * current shader have been set.  If a uniform has not been set,
@@ -502,11 +131,7 @@ setup_index_buffer(struct gl_context *ctx,
 static void
 check_uniforms(struct gl_context *ctx)
 {
-   struct gl_shader_program *shProg[3] = {
-      ctx->Shader.CurrentVertexProgram,
-      ctx->Shader.CurrentGeometryProgram,
-      ctx->Shader.CurrentFragmentProgram,
-   };
+   struct gl_shader_program **shProg = ctx->_Shader->CurrentProgram;
    unsigned j;
 
    for (j = 0; j < 3; j++) {
@@ -515,12 +140,12 @@ check_uniforms(struct gl_context *ctx)
       if (shProg[j] == NULL || !shProg[j]->LinkStatus)
         continue;
 
-      for (i = 0; i < shProg[j]->Uniforms->NumUniforms; i++) {
-         const struct gl_uniform *u = &shProg[j]->Uniforms->Uniforms[i];
-         if (!u->Initialized) {
+      for (i = 0; i < shProg[j]->NumUserUniformStorage; i++) {
+         const struct gl_uniform_storage *u = &shProg[j]->UniformStorage[i];
+         if (!u->initialized) {
             _mesa_warning(ctx,
                           "Using shader with uninitialized uniform: %s",
-                          u->Name);
+                          u->name);
          }
       }
    }
@@ -535,83 +160,14 @@ static unsigned
 translate_prim(const struct gl_context *ctx, unsigned prim)
 {
    /* GL prims should match Gallium prims, spot-check a few */
-   assert(GL_POINTS == PIPE_PRIM_POINTS);
-   assert(GL_QUADS == PIPE_PRIM_QUADS);
-   assert(GL_TRIANGLE_STRIP_ADJACENCY == PIPE_PRIM_TRIANGLE_STRIP_ADJACENCY);
-
-   /* Avoid quadstrips if it's easy to do so:
-    * Note: it's imporant to do the correct trimming if we change the prim type!
-    * We do that wherever this function is called.
-    */
-   if (prim == GL_QUAD_STRIP &&
-       ctx->Light.ShadeModel != GL_FLAT &&
-       ctx->Polygon.FrontMode == GL_FILL &&
-       ctx->Polygon.BackMode == GL_FILL)
-      prim = GL_TRIANGLE_STRIP;
+   STATIC_ASSERT(GL_POINTS == PIPE_PRIM_POINTS);
+   STATIC_ASSERT(GL_QUADS == PIPE_PRIM_QUADS);
+   STATIC_ASSERT(GL_TRIANGLE_STRIP_ADJACENCY == PIPE_PRIM_TRIANGLE_STRIP_ADJACENCY);
 
    return prim;
 }
 
 
-static void
-st_validate_varrays(struct gl_context *ctx,
-                    const struct gl_client_array **arrays,
-                    unsigned max_index,
-                    unsigned num_instances)
-{
-   struct st_context *st = st_context(ctx);
-   const struct st_vertex_program *vp;
-   const struct st_vp_variant *vpv;
-   struct pipe_vertex_buffer vbuffer[PIPE_MAX_SHADER_INPUTS];
-   struct pipe_vertex_element velements[PIPE_MAX_ATTRIBS];
-   unsigned num_vbuffers, num_velements;
-   GLuint attr;
-   unsigned i;
-
-   /* must get these after state validation! */
-   vp = st->vp;
-   vpv = st->vp_variant;
-
-   memset(velements, 0, sizeof(struct pipe_vertex_element) * vpv->num_inputs);
-
-   /* Unreference any user vertex buffers. */
-   for (i = 0; i < st->num_user_vbs; i++) {
-      pipe_resource_reference(&st->user_vb[i], NULL);
-   }
-   st->num_user_vbs = 0;
-
-   /*
-    * Setup the vbuffer[] and velements[] arrays.
-    */
-   if (is_interleaved_arrays(vp, vpv, arrays)) {
-      setup_interleaved_attribs(ctx, vp, vpv, arrays, vbuffer, velements,
-                                max_index, num_instances);
-
-      num_vbuffers = 1;
-      num_velements = vpv->num_inputs;
-      if (num_velements == 0)
-         num_vbuffers = 0;
-   }
-   else {
-      setup_non_interleaved_attribs(ctx, vp, vpv, arrays,
-                                    vbuffer, velements, max_index, num_instances);
-      num_vbuffers = vpv->num_inputs;
-      num_velements = vpv->num_inputs;
-   }
-
-   cso_set_vertex_buffers(st->cso_context, num_vbuffers, vbuffer);
-   cso_set_vertex_elements(st->cso_context, num_velements, velements);
-
-   /* unreference buffers (frees wrapped user-space buffer objects)
-    * This is OK, because the pipe driver should reference buffers by itself
-    * in set_vertex_buffers. */
-   for (attr = 0; attr < num_vbuffers; attr++) {
-      pipe_resource_reference(&vbuffer[attr].buffer, NULL);
-      assert(!vbuffer[attr].buffer);
-   }
-}
-
-
 /**
  * This function gets plugged into the VBO module and is called when
  * we have something to render.
@@ -619,68 +175,28 @@ st_validate_varrays(struct gl_context *ctx,
  */
 void
 st_draw_vbo(struct gl_context *ctx,
-            const struct gl_client_array **arrays,
             const struct _mesa_prim *prims,
             GLuint nr_prims,
             const struct _mesa_index_buffer *ib,
            GLboolean index_bounds_valid,
             GLuint min_index,
-            GLuint max_index)
+            GLuint max_index,
+            struct gl_transform_feedback_object *tfb_vertcount,
+            struct gl_buffer_object *indirect)
 {
    struct st_context *st = st_context(ctx);
-   struct pipe_context *pipe = st->pipe;
-   struct pipe_index_buffer ibuffer;
+   struct pipe_index_buffer ibuffer = {0};
    struct pipe_draw_info info;
-   unsigned i, num_instances = 1;
-   GLboolean new_array = GL_TRUE;
-   /* Fix this (Bug 34378):
-   GLboolean new_array =
-         st->dirty.st && (st->dirty.mesa & (_NEW_ARRAY | _NEW_PROGRAM)) != 0;*/
+   const struct gl_client_array **arrays = ctx->Array._DrawArrays;
+   unsigned i;
 
    /* Mesa core state should have been validated already */
    assert(ctx->NewState == 0x0);
 
-   if (ib) {
-      /* Gallium probably doesn't want this in some cases. */
-      if (!index_bounds_valid)
-         if (!vbo_all_varyings_in_vbos(arrays))
-            vbo_get_minmax_index(ctx, prims, ib, &min_index, &max_index);
-
-      for (i = 0; i < nr_prims; i++) {
-         num_instances = MAX2(num_instances, prims[i].num_instances);
-      }
-   } else {
-      /* Get min/max index for non-indexed drawing. */
-      min_index = ~0;
-      max_index = 0;
-
-      for (i = 0; i < nr_prims; i++) {
-         min_index = MIN2(min_index, prims[i].start);
-         max_index = MAX2(max_index, prims[i].start + prims[i].count - 1);
-         num_instances = MAX2(num_instances, prims[i].num_instances);
-      }
-   }
-
    /* Validate state. */
-   if (st->dirty.st) {
-      GLboolean vertDataEdgeFlags;
-
-      /* sanity check for pointer arithmetic below */
-      assert(sizeof(arrays[0]->Ptr[0]) == 1);
-
-      vertDataEdgeFlags = arrays[VERT_ATTRIB_EDGEFLAG]->BufferObj &&
-                          arrays[VERT_ATTRIB_EDGEFLAG]->BufferObj->Name;
-      if (vertDataEdgeFlags != st->vertdata_edgeflags) {
-         st->vertdata_edgeflags = vertDataEdgeFlags;
-         st->dirty.st |= ST_NEW_EDGEFLAGS_DATA;
-      }
-
+   if (st->dirty.st || ctx->NewDriverState) {
       st_validate_state(st);
 
-      if (new_array) {
-         st_validate_varrays(ctx, arrays, max_index, num_instances);
-      }
-
 #if 0
       if (MESA_VERBOSE & VERBOSE_GLSL) {
          check_uniforms(ctx);
@@ -690,46 +206,50 @@ st_draw_vbo(struct gl_context *ctx,
 #endif
    }
 
-   /* Notify the driver that the content of user buffers may have been
-    * changed. */
-   if (!new_array && st->num_user_vbs) {
-      for (i = 0; i < st->num_user_vbs; i++) {
-         if (st->user_vb[i]) {
-            unsigned stride = st->user_vb_stride[i];
-
-            if (stride) {
-               pipe->redefine_user_buffer(pipe, st->user_vb[i],
-                                          min_index * stride,
-                                          (max_index + 1 - min_index) * stride);
-            } else {
-               /* stride == 0 */
-               pipe->redefine_user_buffer(pipe, st->user_vb[i],
-                                          0, st->user_vb[i]->width0);
-            }
-         }
-      }
+   if (st->vertex_array_out_of_memory) {
+      return;
    }
 
-   setup_index_buffer(ctx, ib, &ibuffer);
-   pipe->set_index_buffer(pipe, &ibuffer);
-
    util_draw_init_info(&info);
+
    if (ib) {
+      /* Get index bounds for user buffers. */
+      if (!index_bounds_valid)
+         if (!all_varyings_in_vbos(arrays))
+            vbo_get_minmax_indices(ctx, prims, ib, &min_index, &max_index,
+                                   nr_prims);
+
+      if (!setup_index_buffer(st, ib, &ibuffer)) {
+         _mesa_error(ctx, GL_OUT_OF_MEMORY, "glBegin/DrawElements/DrawArray");
+         return;
+      }
+
       info.indexed = TRUE;
       if (min_index != ~0 && max_index != ~0) {
          info.min_index = min_index;
          info.max_index = max_index;
       }
-   }
 
-   info.primitive_restart = st->ctx->Array.PrimitiveRestart;
-   info.restart_index = st->ctx->Array.RestartIndex;
+      /* The VBO module handles restart for the non-indexed GLDrawArrays
+       * so we only set these fields for indexed drawing:
+       */
+      info.primitive_restart = ctx->Array._PrimitiveRestart;
+      info.restart_index = ctx->Array.RestartIndex;
+   }
+   else {
+      /* Transform feedback drawing is always non-indexed. */
+      /* Set info.count_from_stream_output. */
+      if (tfb_vertcount) {
+         st_transform_feedback_draw_init(tfb_vertcount, &info);
+      }
+   }
 
    /* do actual drawing */
    for (i = 0; i < nr_prims; i++) {
-      info.mode = translate_prim( ctx, prims[i].mode );
+      info.mode = translate_prim(ctx, prims[i].mode);
       info.start = prims[i].start;
       info.count = prims[i].count;
+      info.start_instance = prims[i].base_instance;
       info.instance_count = prims[i].num_instances;
       info.index_bias = prims[i].basevertex;
       if (!ib) {
@@ -737,21 +257,39 @@ st_draw_vbo(struct gl_context *ctx,
          info.max_index = info.start + info.count - 1;
       }
 
-      if (u_trim_pipe_prim(info.mode, &info.count))
-         pipe->draw_vbo(pipe, &info);
+      if (ST_DEBUG & DEBUG_DRAW) {
+         debug_printf("st/draw: mode %s  start %u  count %u  indexed %d\n",
+                      u_prim_name(info.mode),
+                      info.start,
+                      info.count,
+                      info.indexed);
+      }
+
+      if (info.count_from_stream_output) {
+         cso_draw_vbo(st->cso_context, &info);
+      }
+      else if (info.primitive_restart) {
+         /* don't trim, restarts might be inside index list */
+         cso_draw_vbo(st->cso_context, &info);
+      }
+      else if (u_trim_pipe_prim(prims[i].mode, &info.count)) {
+         cso_draw_vbo(st->cso_context, &info);
+      }
    }
 
-   pipe_resource_reference(&ibuffer.buffer, NULL);
+   if (ib && st->indexbuf_uploader && !_mesa_is_bufferobj(ib->obj)) {
+      pipe_resource_reference(&ibuffer.buffer, NULL);
+   }
 }
 
 
-void st_init_draw( struct st_context *st )
+void
+st_init_draw(struct st_context *st)
 {
    struct gl_context *ctx = st->ctx;
 
    vbo_set_draw_func(ctx, st_draw_vbo);
 
-#if FEATURE_feedback || FEATURE_rastpos
    st->draw = draw_create(st->pipe); /* for selection/feedback */
 
    /* Disable draw options that might convert points/lines to tris, etc.
@@ -761,15 +299,11 @@ void st_init_draw( struct st_context *st )
    draw_wide_point_threshold(st->draw, 1000.0f);
    draw_enable_line_stipple(st->draw, FALSE);
    draw_enable_point_sprites(st->draw, FALSE);
-#endif
 }
 
 
-void st_destroy_draw( struct st_context *st )
+void
+st_destroy_draw(struct st_context *st)
 {
-#if FEATURE_feedback || FEATURE_rastpos
    draw_destroy(st->draw);
-#endif
 }
-
-