i965: clip: Remove no-longer-needed variables.
[mesa.git] / src / mesa / drivers / dri / i965 / brw_draw_upload.c
index 587e74426f74462f7252adbfbfa119e67400f4ef..7bc69c612e321b89480221aced8406300b36d5f2 100644 (file)
@@ -207,8 +207,12 @@ 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];
+      /* This produces GL_FIXED inputs as values between INT32_MIN and
+       * INT32_MAX, which will be scaled down by 1/65536 by the VS.
+       */
+      case GL_FIXED: return int_types_scale[size];
       default: assert(0); return 0;
-      }      
+      }
    }
 }
 
@@ -225,11 +229,12 @@ static GLuint get_size( GLenum type )
    case GL_UNSIGNED_INT: return sizeof(GLuint);
    case GL_UNSIGNED_SHORT: return sizeof(GLushort);
    case GL_UNSIGNED_BYTE: return sizeof(GLubyte);
-   default: return 0;
-   }      
+   case GL_FIXED: return sizeof(GLuint);
+   default: assert(0); return 0;
+   }
 }
 
-static GLuint get_index_type(GLenum type) 
+static GLuint get_index_type(GLenum type)
 {
    switch (type) {
    case GL_UNSIGNED_BYTE:  return BRW_INDEX_BYTE;
@@ -240,41 +245,46 @@ static GLuint get_index_type(GLenum type)
 }
 
 static void
-copy_array_to_vbo_array( struct brw_context *brw,
-                        struct brw_vertex_element *element,
-                        struct brw_vertex_buffer *buffer,
-                        GLuint dst_stride)
+copy_array_to_vbo_array(struct brw_context *brw,
+                       struct brw_vertex_element *element,
+                       int min, int max,
+                       struct brw_vertex_buffer *buffer,
+                       GLuint dst_stride)
 {
-   GLuint size = element->count * dst_stride;
+   int src_stride = element->glarray->StrideB;
+   const unsigned char *src = element->glarray->Ptr + min * src_stride;
+   int count = max - min + 1;
+   GLuint size = count * dst_stride;
 
-   buffer->stride = dst_stride;
-   if (dst_stride == element->glarray->StrideB) {
-      intel_upload_data(&brw->intel, element->glarray->Ptr, size,
+   if (dst_stride == src_stride) {
+      intel_upload_data(&brw->intel, src, size, dst_stride,
                        &buffer->bo, &buffer->offset);
    } else {
-      const unsigned char *src = element->glarray->Ptr;
-      char *dst = intel_upload_map(&brw->intel, size,
-                                  &buffer->bo, &buffer->offset);
-      int i;
+      char * const map = intel_upload_map(&brw->intel, size, dst_stride);
+      char *dst = map;
 
-      for (i = 0; i < element->count; i++) {
+      while (count--) {
         memcpy(dst, src, dst_stride);
-        src += element->glarray->StrideB;
+        src += src_stride;
         dst += dst_stride;
       }
+      intel_upload_unmap(&brw->intel, map, size, dst_stride,
+                        &buffer->bo, &buffer->offset);
    }
+   buffer->stride = dst_stride;
 }
 
 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; 
-   GLuint i, j;
+   /* CACHE_NEW_VS_PROG */
+   GLbitfield vs_inputs = brw->vs.prog_data->inputs_read;
    const unsigned char *ptr = NULL;
-   GLuint interleave = 0;
+   GLuint interleaved = 0, total_size = 0;
    unsigned int min_index = brw->vb.min_index;
    unsigned int max_index = brw->vb.max_index;
+   int delta, i, j;
 
    struct brw_vertex_element *upload[VERT_ATTRIB_MAX];
    GLuint nr_uploads = 0;
@@ -287,11 +297,12 @@ static void brw_prepare_vertices(struct brw_context *brw)
    /* Accumulate the list of enabled arrays. */
    brw->vb.nr_enabled = 0;
    while (vs_inputs) {
-      GLuint i = _mesa_ffsll(vs_inputs) - 1;
+      GLuint i = ffs(vs_inputs) - 1;
       struct brw_vertex_element *input = &brw->vb.inputs[i];
 
       vs_inputs &= ~(1 << i);
-      brw->vb.enabled[brw->vb.nr_enabled++] = input;
+      if (input->glarray->Size && get_size(input->glarray->Type))
+         brw->vb.enabled[brw->vb.nr_enabled++] = input;
    }
 
    if (brw->vb.nr_enabled == 0)
@@ -313,39 +324,41 @@ static void brw_prepare_vertices(struct brw_context *brw)
 
    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 = get_size(input->glarray->Type) * input->glarray->Size;
+      input->element_size = type_size * glarray->Size;
 
-      if (_mesa_is_bufferobj(input->glarray->BufferObj)) {
+      if (_mesa_is_bufferobj(glarray->BufferObj)) {
         struct intel_buffer_object *intel_buffer =
-           intel_buffer_object(input->glarray->BufferObj);
+           intel_buffer_object(glarray->BufferObj);
         int k;
 
         for (k = 0; k < i; k++) {
-           struct brw_vertex_element *other = brw->vb.enabled[k];
-           if (input->glarray->BufferObj == other->glarray->BufferObj &&
-               input->glarray->StrideB == other->glarray->StrideB &&
-               (uintptr_t)(input->glarray->Ptr - other->glarray->Ptr) <
-               input->glarray->StrideB)
+           const struct gl_client_array *other = brw->vb.enabled[k]->glarray;
+           if (glarray->BufferObj == other->BufferObj &&
+               glarray->StrideB == other->StrideB &&
+               (uintptr_t)(glarray->Ptr - other->Ptr) < glarray->StrideB)
            {
-              input->buffer = other->buffer;
-              input->offset = input->glarray->Ptr - other->glarray->Ptr;
+              input->buffer = brw->vb.enabled[k]->buffer;
+              input->offset = glarray->Ptr - other->Ptr;
               break;
            }
         }
         if (k == i) {
            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,
+            buffer->bo = intel_bufferobj_source(intel,
+                                                intel_buffer, type_size,
                                                &buffer->offset);
            drm_intel_bo_reference(buffer->bo);
-           buffer->offset += (uintptr_t)input->glarray->Ptr;
-           buffer->stride = input->glarray->StrideB;
+           buffer->offset += (uintptr_t)glarray->Ptr;
+           buffer->stride = glarray->StrideB;
 
            input->buffer = j++;
            input->offset = 0;
         }
-        input->count = input->glarray->_MaxElement;
 
         /* This is a common place to reach if the user mistakenly supplies
          * a pointer in place of a VBO offset.  If we just let it go through,
@@ -361,58 +374,148 @@ static void brw_prepare_vertices(struct brw_context *brw)
          */
         assert(input->offset < brw->vb.buffers[input->buffer].bo->size);
       } else {
-        input->count = input->glarray->StrideB ? max_index + 1 : 1;
-
         /* Queue the buffer object up to be uploaded in the next pass,
          * when we've decided if we're doing interleaved or not.
          */
-        if (input->attrib == VERT_ATTRIB_POS) {
+        if (nr_uploads == 0) {
            /* Position array not properly enabled:
             */
-            if (input->glarray->StrideB == 0) {
+           if (input->attrib == VERT_ATTRIB_POS && glarray->StrideB == 0) {
                intel->Fallback = GL_TRUE; /* boolean, not bitfield */
                return;
             }
 
-           interleave = input->glarray->StrideB;
-           ptr = input->glarray->Ptr;
+           interleaved = glarray->StrideB;
+           ptr = glarray->Ptr;
+        }
+        else if (interleaved != glarray->StrideB ||
+                 (uintptr_t)(glarray->Ptr - ptr) > interleaved)
+        {
+           interleaved = 0;
         }
-        else if (interleave != input->glarray->StrideB ||
-                 (uintptr_t)(input->glarray->Ptr - ptr) > interleave)
+        else if ((uintptr_t)(glarray->Ptr - ptr) & (type_size -1))
         {
-           interleave = 0;
+           /* enforce natural alignment (for doubles) */
+           interleaved = 0;
         }
 
         upload[nr_uploads++] = input;
+        total_size = ALIGN(total_size, type_size);
+        total_size += input->element_size;
       }
    }
 
+   /* If we need to upload all the arrays, then we can trim those arrays to
+    * only the used elements [min_index, max_index] so long as we adjust all
+    * the values used in the 3DPRIMITIVE i.e. by setting the vertex bias.
+    */
+   brw->vb.start_vertex_bias = 0;
+   delta = min_index;
+   if (nr_uploads == brw->vb.nr_enabled) {
+      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 && interleave && interleave <= 256) {
-      /* All uploads are interleaved, so upload the arrays together as
-       * interleaved.  First, upload the contents and set up upload[0].
-       */
-      copy_array_to_vbo_array(brw,
-                             upload[0], &brw->vb.buffers[j],
-                             interleave);
-
-      for (i = 0; i < nr_uploads; i++) {
-        /* Then, just point upload[i] at upload[0]'s buffer. */
-        upload[i]->offset =
-           ((const unsigned char *)upload[i]->glarray->Ptr - upload[0]->glarray->Ptr);
-        upload[i]->buffer = j;
+   if (nr_uploads > 1) {
+      if (interleaved && interleaved <= 2*total_size) {
+        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].
+         */
+        copy_array_to_vbo_array(brw, upload[0], min_index, max_index,
+                                buffer, interleaved);
+        buffer->offset -= delta * interleaved;
+
+        for (i = 0; i < nr_uploads; i++) {
+           /* Then, just point upload[i] at upload[0]'s buffer. */
+           upload[i]->offset =
+              ((const unsigned char *)upload[i]->glarray->Ptr - ptr);
+           upload[i]->buffer = j;
+        }
+        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;
       }
-      j++;
    }
-   else {
-      /* Upload non-interleaved arrays */
-      for (i = 0; i < nr_uploads; i++) {
-          copy_array_to_vbo_array(brw,
-                                 upload[i], &brw->vb.buffers[j],
-                                 upload[i]->element_size);
-         upload[i]->buffer = j++;
+   /* 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);
+      buffer->offset -= delta * buffer->stride;
+      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 (d < 0)
+           break;
+        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:
@@ -439,7 +542,7 @@ static void brw_emit_vertices(struct brw_context *brw)
     */
    if (brw->vb.nr_enabled == 0) {
       BEGIN_BATCH(3);
-      OUT_BATCH((CMD_VERTEX_ELEMENT << 16) | 1);
+      OUT_BATCH((_3DSTATE_VERTEX_ELEMENTS << 16) | 1);
       if (intel->gen >= 6) {
         OUT_BATCH((0 << GEN6_VE0_INDEX_SHIFT) |
                   GEN6_VE0_VALID |
@@ -462,30 +565,40 @@ static void brw_emit_vertices(struct brw_context *brw)
    /* Now emit VB and VEP state packets.
     */
 
-   BEGIN_BATCH(1 + 4*brw->vb.nr_buffers);
-   OUT_BATCH((CMD_VERTEX_BUFFER << 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 (brw->vb.nr_buffers) {
+      BEGIN_BATCH(1 + 4*brw->vb.nr_buffers);
+      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);
+        } else {
+           dw0 = BRW_VB0_ACCESS_VERTEXDATA | (i << BRW_VB0_INDEX_SHIFT);
+        }
 
-      if (intel->gen >= 6) {
-        dw0 = GEN6_VB0_ACCESS_VERTEXDATA | (i << GEN6_VB0_INDEX_SHIFT);
-      } else {
-        dw0 = BRW_VB0_ACCESS_VERTEXDATA | (i << BRW_VB0_INDEX_SHIFT);
-      }
+        if (intel->gen >= 7)
+           dw0 |= GEN7_VB0_ADDRESS_MODIFYENABLE;
+
+        OUT_BATCH(dw0 | (buffer->stride << BRW_VB0_PITCH_SHIFT));
+        OUT_RELOC(buffer->bo, I915_GEM_DOMAIN_VERTEX, 0, buffer->offset);
+        if (intel->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 */
 
-      OUT_BATCH(dw0 | (buffer->stride << BRW_VB0_PITCH_SHIFT));
-      OUT_RELOC(buffer->bo, I915_GEM_DOMAIN_VERTEX, 0, buffer->offset);
-      if (intel->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;
+      }
+      brw->vb.nr_current_buffers = i;
+      ADVANCE_BATCH();
    }
-   ADVANCE_BATCH();
 
    BEGIN_BATCH(1 + brw->vb.nr_enabled * 2);
-   OUT_BATCH((CMD_VERTEX_ELEMENT << 16) | (2*brw->vb.nr_enabled - 1));
+   OUT_BATCH((_3DSTATE_VERTEX_ELEMENTS << 16) | (2*brw->vb.nr_enabled - 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,
@@ -536,7 +649,7 @@ const struct brw_tracked_state brw_vertices = {
    .dirty = {
       .mesa = 0,
       .brw = BRW_NEW_BATCH | BRW_NEW_VERTICES,
-      .cache = 0,
+      .cache = CACHE_NEW_VS_PROG,
    },
    .prepare = brw_prepare_vertices,
    .emit = brw_emit_vertices,
@@ -566,9 +679,9 @@ static void brw_prepare_indices(struct brw_context *brw)
 
       /* Get new bufferobj, offset:
        */
-      intel_upload_data(&brw->intel, index_buffer->ptr, ib_size, &bo, &offset);
+      intel_upload_data(&brw->intel, index_buffer->ptr, ib_size, ib_type_size,
+                       &bo, &offset);
       brw->ib.start_vertex_offset = offset / ib_type_size;
-      offset = 0;
    } else {
       offset = (GLuint) (unsigned long) index_buffer->ptr;
 
@@ -576,17 +689,17 @@ static void brw_prepare_indices(struct brw_context *brw)
        * 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, &bo, &offset);
+           GLubyte *map = ctx->Driver.MapBufferRange(ctx,
+                                                    offset,
+                                                    ib_size,
+                                                    GL_MAP_WRITE_BIT,
+                                                    bufferobj);
+
+          intel_upload_data(&brw->intel, map, ib_size, ib_type_size,
+                            &bo, &offset);
           brw->ib.start_vertex_offset = offset / ib_type_size;
-          offset = 0;
 
-           ctx->Driver.UnmapBuffer(ctx, GL_ELEMENT_ARRAY_BUFFER_ARB, bufferobj);
+           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
@@ -594,22 +707,30 @@ static void brw_prepare_indices(struct brw_context *brw)
           */
          brw->ib.start_vertex_offset = offset / ib_type_size;
 
-         bo = intel_bufferobj_source(intel, intel_buffer_object(bufferobj),
+         bo = intel_bufferobj_source(intel,
+                                     intel_buffer_object(bufferobj),
+                                     ib_type_size,
                                      &offset);
          drm_intel_bo_reference(bo);
+
+         brw->ib.start_vertex_offset += offset / ib_type_size;
        }
    }
 
-   if (brw->ib.bo != bo || brw->ib.offset != offset) {
+   if (brw->ib.bo != bo) {
       drm_intel_bo_unreference(brw->ib.bo);
       brw->ib.bo = bo;
-      brw->ib.offset = offset;
 
       brw_add_validated_bo(brw, brw->ib.bo);
       brw->state.dirty.brw |= BRW_NEW_INDEX_BUFFER;
    } else {
       drm_intel_bo_unreference(bo);
    }
+
+   if (index_buffer->type != brw->ib.type) {
+      brw->ib.type = index_buffer->type;
+      brw->state.dirty.brw |= BRW_NEW_INDEX_BUFFER;
+   }
 }
 
 const struct brw_tracked_state brw_indices = {
@@ -636,7 +757,7 @@ static void brw_emit_index_buffer(struct brw_context *brw)
              1);
    OUT_RELOC(brw->ib.bo,
              I915_GEM_DOMAIN_VERTEX, 0,
-             brw->ib.offset);
+             0);
    OUT_RELOC(brw->ib.bo,
              I915_GEM_DOMAIN_VERTEX, 0,
             brw->ib.bo->size - 1);