llvmpipe: fix denorm handling for r11g11b10_float format when blending
[mesa.git] / src / gallium / drivers / llvmpipe / lp_rast.c
index 8a4b00f785d6e3734b0c019f3e38e04f2beedf48..0ae5976eedc7aaa8e7b83647127d5bbefeec62ee 100644 (file)
@@ -35,6 +35,7 @@
 #include "os/os_time.h"
 
 #include "lp_scene_queue.h"
+#include "lp_context.h"
 #include "lp_debug.h"
 #include "lp_fence.h"
 #include "lp_perf.h"
@@ -61,7 +62,6 @@ static void
 lp_rast_begin( struct lp_rasterizer *rast,
                struct lp_scene *scene )
 {
-
    rast->curr_scene = scene;
 
    LP_DBG(DEBUG_RAST, "%s\n", __FUNCTION__);
@@ -87,13 +87,21 @@ lp_rast_end( struct lp_rasterizer *rast )
  */
 static void
 lp_rast_tile_begin(struct lp_rasterizer_task *task,
-                   const struct cmd_bin *bin)
+                   const struct cmd_bin *bin,
+                   int x, int y)
 {
-   LP_DBG(DEBUG_RAST, "%s %d,%d\n", __FUNCTION__, bin->x, bin->y);
+   LP_DBG(DEBUG_RAST, "%s %d,%d\n", __FUNCTION__, x, y);
 
    task->bin = bin;
-   task->x = bin->x * TILE_SIZE;
-   task->y = bin->y * TILE_SIZE;
+   task->x = x * TILE_SIZE;
+   task->y = y * TILE_SIZE;
+   task->width = TILE_SIZE + x * TILE_SIZE > task->scene->fb.width ?
+                    task->scene->fb.width - x * TILE_SIZE : TILE_SIZE;
+   task->height = TILE_SIZE + y * TILE_SIZE > task->scene->fb.height ?
+                    task->scene->fb.height - y * TILE_SIZE : TILE_SIZE;
+
+   task->thread_data.vis_counter = 0;
+   task->ps_invocations = 0;
 
    /* reset pointers to color and depth tile(s) */
    memset(task->color_tiles, 0, sizeof(task->color_tiles));
@@ -101,9 +109,29 @@ lp_rast_tile_begin(struct lp_rasterizer_task *task,
 }
 
 
+/**
+ * Examine a framebuffer object to determine if any of the colorbuffers
+ * use a pure integer format.
+ * XXX this could be a gallium utility function if useful elsewhere.
+ */
+static boolean
+is_fb_pure_integer(const struct pipe_framebuffer_state *fb)
+{
+   unsigned i;
+   for (i = 0; i < fb->nr_cbufs; i++) {
+      if (fb->cbufs[i] &&
+          util_format_is_pure_integer(fb->cbufs[i]->format)) {
+         return TRUE;
+      }
+   }
+   return FALSE;
+}
+
+
 /**
  * Clear the rasterizer's current color tile.
  * This is a bin command called during bin processing.
+ * Clear commands always clear all bound layers.
  */
 static void
 lp_rast_clear_color(struct lp_rasterizer_task *task,
@@ -115,7 +143,7 @@ lp_rast_clear_color(struct lp_rasterizer_task *task,
       unsigned i;
       union util_color uc;
 
-      if (util_format_is_pure_integer(scene->fb.cbufs[0]->format)) {
+      if (is_fb_pure_integer(&scene->fb)) {
          /*
           * We expect int/uint clear values here, though some APIs
           * might disagree (but in any case util_pack_color()
@@ -138,14 +166,17 @@ lp_rast_clear_color(struct lp_rasterizer_task *task,
                util_format_write_4ui(format, arg.clear_color.ui, 0, &uc, 0, 0, 0, 1, 1);
             }
 
-            util_fill_rect(scene->cbufs[i].map,
-                           scene->fb.cbufs[i]->format,
-                           scene->cbufs[i].stride,
-                           task->x,
-                           task->y,
-                           TILE_SIZE,
-                           TILE_SIZE,
-                           &uc);
+            util_fill_box(scene->cbufs[i].map,
+                          format,
+                          scene->cbufs[i].stride,
+                          scene->cbufs[i].layer_stride,
+                          task->x,
+                          task->y,
+                          0,
+                          task->width,
+                          task->height,
+                          scene->fb_max_layer + 1,
+                          &uc);
          }
       }
       else {
@@ -162,18 +193,22 @@ lp_rast_clear_color(struct lp_rasterizer_task *task,
                     clear_color[3]);
 
          for (i = 0; i < scene->fb.nr_cbufs; i++) {
-
-            util_pack_color(arg.clear_color.f,
-                            scene->fb.cbufs[i]->format, &uc);
-
-            util_fill_rect(scene->cbufs[i].map,
-                           scene->fb.cbufs[i]->format,
-                           scene->cbufs[i].stride,
-                           task->x,
-                           task->y,
-                           TILE_SIZE,
-                           TILE_SIZE,
-                           &uc);
+            if (scene->fb.cbufs[i]) {
+               util_pack_color(arg.clear_color.f,
+                               scene->fb.cbufs[i]->format, &uc);
+
+               util_fill_box(scene->cbufs[i].map,
+                             scene->fb.cbufs[i]->format,
+                             scene->cbufs[i].stride,
+                             scene->cbufs[i].layer_stride,
+                             task->x,
+                             task->y,
+                             0,
+                             task->width,
+                             task->height,
+                             scene->fb_max_layer + 1,
+                             &uc);
+            }
          }
       }
    }
@@ -187,6 +222,7 @@ lp_rast_clear_color(struct lp_rasterizer_task *task,
 /**
  * Clear the rasterizer's current z/stencil tile.
  * This is a bin command called during bin processing.
+ * Clear commands always clear all bound layers.
  */
 static void
 lp_rast_clear_zstencil(struct lp_rasterizer_task *task,
@@ -197,12 +233,12 @@ lp_rast_clear_zstencil(struct lp_rasterizer_task *task,
    uint64_t clear_mask64 = arg.clear_zstencil.mask;
    uint32_t clear_value = (uint32_t) clear_value64;
    uint32_t clear_mask = (uint32_t) clear_mask64;
-   const unsigned height = TILE_SIZE;
-   const unsigned width = TILE_SIZE;
-   const unsigned block_size = scene->zsbuf.blocksize;
+   const unsigned height = task->height;
+   const unsigned width = task->width;
    const unsigned dst_stride = scene->zsbuf.stride;
    uint8_t *dst;
    unsigned i, j;
+   unsigned block_size;
 
    LP_DBG(DEBUG_RAST, "%s: value=0x%08x, mask=0x%08x\n",
            __FUNCTION__, clear_value, clear_mask);
@@ -212,81 +248,87 @@ lp_rast_clear_zstencil(struct lp_rasterizer_task *task,
     */
 
    if (scene->fb.zsbuf) {
-
-      dst = lp_rast_get_unswizzled_depth_tile_pointer(task, LP_TEX_USAGE_READ_WRITE);
+      unsigned layer;
+      uint8_t *dst_layer = lp_rast_get_unswizzled_depth_tile_pointer(task, LP_TEX_USAGE_READ_WRITE);
+      block_size = util_format_get_blocksize(scene->fb.zsbuf->format);
 
       clear_value &= clear_mask;
 
-      switch (block_size) {
-      case 1:
-         assert(clear_mask == 0xff);
-         memset(dst, (uint8_t) clear_value, height * width);
-         break;
-      case 2:
-         if (clear_mask == 0xffff) {
-            for (i = 0; i < height; i++) {
-               uint16_t *row = (uint16_t *)dst;
-               for (j = 0; j < width; j++)
-                  *row++ = (uint16_t) clear_value;
-               dst += dst_stride;
+      for (layer = 0; layer <= scene->fb_max_layer; layer++) {
+         dst = dst_layer;
+
+         switch (block_size) {
+         case 1:
+            assert(clear_mask == 0xff);
+            memset(dst, (uint8_t) clear_value, height * width);
+            break;
+         case 2:
+            if (clear_mask == 0xffff) {
+               for (i = 0; i < height; i++) {
+                  uint16_t *row = (uint16_t *)dst;
+                  for (j = 0; j < width; j++)
+                     *row++ = (uint16_t) clear_value;
+                  dst += dst_stride;
+               }
             }
-         }
-         else {
-            for (i = 0; i < height; i++) {
-               uint16_t *row = (uint16_t *)dst;
-               for (j = 0; j < width; j++) {
-                  uint16_t tmp = ~clear_mask & *row;
-                  *row++ = clear_value | tmp;
+            else {
+               for (i = 0; i < height; i++) {
+                  uint16_t *row = (uint16_t *)dst;
+                  for (j = 0; j < width; j++) {
+                     uint16_t tmp = ~clear_mask & *row;
+                     *row++ = clear_value | tmp;
+                  }
+                  dst += dst_stride;
                }
-               dst += dst_stride;
             }
-         }
-         break;
-      case 4:
-         if (clear_mask == 0xffffffff) {
-            for (i = 0; i < height; i++) {
-               uint32_t *row = (uint32_t *)dst;
-               for (j = 0; j < width; j++)
-                  *row++ = clear_value;
-               dst += dst_stride;
+            break;
+         case 4:
+            if (clear_mask == 0xffffffff) {
+               for (i = 0; i < height; i++) {
+                  uint32_t *row = (uint32_t *)dst;
+                  for (j = 0; j < width; j++)
+                     *row++ = clear_value;
+                  dst += dst_stride;
+               }
             }
-         }
-         else {
-            for (i = 0; i < height; i++) {
-               uint32_t *row = (uint32_t *)dst;
-               for (j = 0; j < width; j++) {
-                  uint32_t tmp = ~clear_mask & *row;
-                  *row++ = clear_value | tmp;
+            else {
+               for (i = 0; i < height; i++) {
+                  uint32_t *row = (uint32_t *)dst;
+                  for (j = 0; j < width; j++) {
+                     uint32_t tmp = ~clear_mask & *row;
+                     *row++ = clear_value | tmp;
+                  }
+                  dst += dst_stride;
                }
-               dst += dst_stride;
             }
-         }
-         break;
-      case 8:
-         clear_value64 &= clear_mask64;
-         if (clear_mask64 == 0xffffffffffULL) {
-            for (i = 0; i < height; i++) {
-               uint64_t *row = (uint64_t *)dst;
-               for (j = 0; j < width; j++)
-                  *row++ = clear_value64;
-               dst += dst_stride;
+            break;
+         case 8:
+            clear_value64 &= clear_mask64;
+            if (clear_mask64 == 0xffffffffffULL) {
+               for (i = 0; i < height; i++) {
+                  uint64_t *row = (uint64_t *)dst;
+                  for (j = 0; j < width; j++)
+                     *row++ = clear_value64;
+                  dst += dst_stride;
+               }
             }
-         }
-         else {
-            for (i = 0; i < height; i++) {
-               uint64_t *row = (uint64_t *)dst;
-               for (j = 0; j < width; j++) {
-                  uint64_t tmp = ~clear_mask64 & *row;
-                  *row++ = clear_value64 | tmp;
+            else {
+               for (i = 0; i < height; i++) {
+                  uint64_t *row = (uint64_t *)dst;
+                  for (j = 0; j < width; j++) {
+                     uint64_t tmp = ~clear_mask64 & *row;
+                     *row++ = clear_value64 | tmp;
+                  }
+                  dst += dst_stride;
                }
-               dst += dst_stride;
             }
-         }
-         break;
+            break;
 
-      default:
-         assert(0);
-         break;
+         default:
+            assert(0);
+            break;
+         }
+         dst_layer += scene->zsbuf.layer_stride;
       }
    }
 }
@@ -324,8 +366,8 @@ lp_rast_shade_tile(struct lp_rasterizer_task *task,
    variant = state->variant;
 
    /* render the whole 64x64 tile in 4x4 chunks */
-   for (y = 0; y < TILE_SIZE; y += 4){
-      for (x = 0; x < TILE_SIZE; x += 4) {
+   for (y = 0; y < task->height; y += 4){
+      for (x = 0; x < task->width; x += 4) {
          uint8_t *color[PIPE_MAX_COLOR_BUFS];
          unsigned stride[PIPE_MAX_COLOR_BUFS];
          uint8_t *depth = NULL;
@@ -335,16 +377,19 @@ lp_rast_shade_tile(struct lp_rasterizer_task *task,
          /* color buffer */
          for (i = 0; i < scene->fb.nr_cbufs; i++){
             stride[i] = scene->cbufs[i].stride;
-
-            color[i] = lp_rast_get_unswizzled_color_block_pointer(task, i, tile_x + x, tile_y + y);
+            color[i] = lp_rast_get_unswizzled_color_block_pointer(task, i, tile_x + x,
+                                                                  tile_y + y, inputs->layer);
          }
 
          /* depth buffer */
          if (scene->zsbuf.map) {
-            depth = lp_rast_get_unswizzled_depth_block_pointer(task, tile_x + x, tile_y + y);
+            depth = lp_rast_get_unswizzled_depth_block_pointer(task, tile_x + x,
+                                                               tile_y + y, inputs->layer);
             depth_stride = scene->zsbuf.stride;
          }
 
+         /* Propagate non-interpolated raster state. */
+         task->thread_data.raster_state.viewport_index = inputs->viewport_index;
 
          /* run shader on 4x4 block */
          BEGIN_JIT_CALL(state, task);
@@ -403,7 +448,7 @@ lp_rast_shade_quads_mask(struct lp_rasterizer_task *task,
    const struct lp_scene *scene = task->scene;
    uint8_t *color[PIPE_MAX_COLOR_BUFS];
    unsigned stride[PIPE_MAX_COLOR_BUFS];
-   void *depth = NULL;
+   uint8_t *depth = NULL;
    unsigned depth_stride = 0;
    unsigned i;
 
@@ -420,34 +465,53 @@ lp_rast_shade_quads_mask(struct lp_rasterizer_task *task,
 
    /* color buffer */
    for (i = 0; i < scene->fb.nr_cbufs; i++) {
-      stride[i] = scene->cbufs[i].stride;
-
-      color[i] = lp_rast_get_unswizzled_color_block_pointer(task, i, x, y);
+      if (scene->fb.cbufs[i]) {
+         stride[i] = scene->cbufs[i].stride;
+         color[i] = lp_rast_get_unswizzled_color_block_pointer(task, i, x, y,
+                                                               inputs->layer);
+      }
+      else {
+         stride[i] = 0;
+         color[i] = NULL;
+      }
    }
 
    /* depth buffer */
    if (scene->zsbuf.map) {
       depth_stride = scene->zsbuf.stride;
-      depth = lp_rast_get_unswizzled_depth_block_pointer(task, x, y);
+      depth = lp_rast_get_unswizzled_depth_block_pointer(task, x, y, inputs->layer);
    }
 
    assert(lp_check_alignment(state->jit_context.u8_blend_color, 16));
 
-   /* run shader on 4x4 block */
-   BEGIN_JIT_CALL(state, task);
-   variant->jit_function[RAST_EDGE_TEST](&state->jit_context,
-                                         x, y,
-                                         inputs->frontfacing,
-                                         GET_A0(inputs),
-                                         GET_DADX(inputs),
-                                         GET_DADY(inputs),
-                                         color,
-                                         depth,
-                                         mask,
-                                         &task->thread_data,
-                                         stride,
-                                         depth_stride);
-   END_JIT_CALL();
+   /*
+    * The rasterizer may produce fragments outside our
+    * allocated 4x4 blocks hence need to filter them out here.
+    */
+   if ((x % TILE_SIZE) < task->width && (y % TILE_SIZE) < task->height) {
+      /* not very accurate would need a popcount on the mask */
+      /* always count this not worth bothering? */
+      task->ps_invocations += 1 * variant->ps_inv_multiplier;
+
+      /* Propagate non-interpolated raster state. */
+      task->thread_data.raster_state.viewport_index = inputs->viewport_index;
+
+      /* run shader on 4x4 block */
+      BEGIN_JIT_CALL(state, task);
+      variant->jit_function[RAST_EDGE_TEST](&state->jit_context,
+                                            x, y,
+                                            inputs->frontfacing,
+                                            GET_A0(inputs),
+                                            GET_DADX(inputs),
+                                            GET_DADY(inputs),
+                                            color,
+                                            depth,
+                                            mask,
+                                            &task->thread_data,
+                                            stride,
+                                            depth_stride);
+      END_JIT_CALL();
+   }
 }
 
 
@@ -463,24 +527,18 @@ lp_rast_begin_query(struct lp_rasterizer_task *task,
 {
    struct llvmpipe_query *pq = arg.query_obj;
 
-   assert(task->query[pq->type] == NULL);
-
    switch (pq->type) {
    case PIPE_QUERY_OCCLUSION_COUNTER:
-      task->thread_data.vis_counter = 0;
+   case PIPE_QUERY_OCCLUSION_PREDICATE:
+      pq->start[task->thread_index] = task->thread_data.vis_counter;
       break;
-   case PIPE_QUERY_PRIMITIVES_GENERATED:
-   case PIPE_QUERY_PRIMITIVES_EMITTED:
-   case PIPE_QUERY_SO_STATISTICS:
    case PIPE_QUERY_PIPELINE_STATISTICS:
-   case PIPE_QUERY_SO_OVERFLOW_PREDICATE:
+      pq->start[task->thread_index] = task->ps_invocations;
       break;
    default:
       assert(0);
       break;
    }
-
-   task->query[pq->type] = pq;
 }
 
 
@@ -494,29 +552,26 @@ lp_rast_end_query(struct lp_rasterizer_task *task,
                   const union lp_rast_cmd_arg arg)
 {
    struct llvmpipe_query *pq = arg.query_obj;
-   assert(task->query[pq->type] == pq || pq->type == PIPE_QUERY_TIMESTAMP);
 
    switch (pq->type) {
    case PIPE_QUERY_OCCLUSION_COUNTER:
-      pq->count[task->thread_index] += task->thread_data.vis_counter;
+   case PIPE_QUERY_OCCLUSION_PREDICATE:
+      pq->end[task->thread_index] +=
+         task->thread_data.vis_counter - pq->start[task->thread_index];
+      pq->start[task->thread_index] = 0;
       break;
    case PIPE_QUERY_TIMESTAMP:
-      pq->count[task->thread_index] = os_time_get_nano();
+      pq->end[task->thread_index] = os_time_get_nano();
       break;
-   case PIPE_QUERY_PRIMITIVES_GENERATED:
-   case PIPE_QUERY_PRIMITIVES_EMITTED:
-   case PIPE_QUERY_SO_STATISTICS:
    case PIPE_QUERY_PIPELINE_STATISTICS:
-   case PIPE_QUERY_SO_OVERFLOW_PREDICATE:
+      pq->end[task->thread_index] +=
+         task->ps_invocations - pq->start[task->thread_index];
+      pq->start[task->thread_index] = 0;
       break;
    default:
       assert(0);
       break;
    }
-
-   if (task->query[pq->type] == pq) {
-      task->query[pq->type] = NULL;
-   }
 }
 
 
@@ -537,10 +592,8 @@ lp_rast_tile_end(struct lp_rasterizer_task *task)
 {
    unsigned i;
 
-   for (i = 0; i < PIPE_QUERY_TYPES; ++i) {
-      if (task->query[i]) {
-         lp_rast_end_query(task, lp_rast_arg_query(task->query[i]));
-      }
+   for (i = 0; i < task->scene->num_active_queries; ++i) {
+      lp_rast_end_query(task, lp_rast_arg_query(task->scene->active_queries[i]));
    }
 
    /* debug */
@@ -570,18 +623,30 @@ static lp_rast_cmd_func dispatch[LP_RAST_OP_MAX] =
    lp_rast_begin_query,
    lp_rast_end_query,
    lp_rast_set_state,
+   lp_rast_triangle_32_1,
+   lp_rast_triangle_32_2,
+   lp_rast_triangle_32_3,
+   lp_rast_triangle_32_4,
+   lp_rast_triangle_32_5,
+   lp_rast_triangle_32_6,
+   lp_rast_triangle_32_7,
+   lp_rast_triangle_32_8,
+   lp_rast_triangle_32_3_4,
+   lp_rast_triangle_32_3_16,
+   lp_rast_triangle_32_4_16
 };
 
 
 static void
 do_rasterize_bin(struct lp_rasterizer_task *task,
-                 const struct cmd_bin *bin)
+                 const struct cmd_bin *bin,
+                 int x, int y)
 {
    const struct cmd_block *block;
    unsigned k;
 
    if (0)
-      lp_debug_bin(bin);
+      lp_debug_bin(bin, x, y);
 
    for (block = bin->head; block; block = block->next) {
       for (k = 0; k < block->count; k++) {
@@ -600,11 +665,11 @@ do_rasterize_bin(struct lp_rasterizer_task *task,
  */
 static void
 rasterize_bin(struct lp_rasterizer_task *task,
-              const struct cmd_bin *bin )
+              const struct cmd_bin *bin, int x, int y )
 {
-   lp_rast_tile_begin( task, bin );
+   lp_rast_tile_begin( task, bin, x, y );
 
-   do_rasterize_bin(task, bin);
+   do_rasterize_bin(task, bin, x, y);
 
    lp_rast_tile_end(task);
 
@@ -646,27 +711,16 @@ rasterize_scene(struct lp_rasterizer_task *task,
 
    if (!task->rast->no_rast && !scene->discard) {
       /* loop over scene bins, rasterize each */
-#if 0
-      {
-         unsigned i, j;
-         for (i = 0; i < scene->tiles_x; i++) {
-            for (j = 0; j < scene->tiles_y; j++) {
-               struct cmd_bin *bin = lp_scene_get_bin(scene, i, j);
-               rasterize_bin(task, bin, i, j);
-            }
-         }
-      }
-#else
       {
          struct cmd_bin *bin;
+         int i, j;
 
          assert(scene);
-         while ((bin = lp_scene_bin_iter_next(scene))) {
+         while ((bin = lp_scene_bin_iter_next(scene, &i, &j))) {
             if (!is_empty_bin( bin ))
-               rasterize_bin(task, bin);
+               rasterize_bin(task, bin, i, j);
          }
       }
-#endif
    }
 
 
@@ -689,6 +743,12 @@ lp_rast_queue_scene( struct lp_rasterizer *rast,
 
    if (rast->num_threads == 0) {
       /* no threading */
+      unsigned fpstate = util_fpstate_get();
+
+      /* Make sure that denorms are treated like zeros. This is 
+       * the behavior required by D3D10. OpenGL doesn't care.
+       */
+      util_fpstate_set_denorms_to_zero(fpstate);
 
       lp_rast_begin( rast, scene );
 
@@ -696,6 +756,8 @@ lp_rast_queue_scene( struct lp_rasterizer *rast,
 
       lp_rast_end( rast );
 
+      util_fpstate_set(fpstate);
+
       rast->curr_scene = NULL;
    }
    else {
@@ -743,6 +805,12 @@ static PIPE_THREAD_ROUTINE( thread_function, init_data )
    struct lp_rasterizer_task *task = (struct lp_rasterizer_task *) init_data;
    struct lp_rasterizer *rast = task->rast;
    boolean debug = false;
+   unsigned fpstate = util_fpstate_get();
+
+   /* Make sure that denorms are treated like zeros. This is 
+    * the behavior required by D3D10. OpenGL doesn't care.
+    */
+   util_fpstate_set_denorms_to_zero(fpstate);
 
    while (1) {
       /* wait for work */
@@ -790,7 +858,7 @@ static PIPE_THREAD_ROUTINE( thread_function, init_data )
       pipe_semaphore_signal(&task->work_done);
    }
 
-   return NULL;
+   return 0;
 }
 
 
@@ -895,11 +963,3 @@ void lp_rast_destroy( struct lp_rasterizer *rast )
 }
 
 
-/** Return number of rasterization threads */
-unsigned
-lp_rast_get_num_threads( struct lp_rasterizer *rast )
-{
-   return rast->num_threads;
-}
-
-