llvmpipe: fix PIPE_CAP_MAX_VERTEX_TEXTURE_UNITS query
[mesa.git] / src / gallium / drivers / llvmpipe / lp_rast_priv.h
index 8bf2b92a6abe93874a54a656e884f203c7dbd96c..fae7f6d3dc2baddc23fa62505884f30a09cf37b0 100644 (file)
 #include "os/os_thread.h"
 #include "util/u_format.h"
 #include "gallivm/lp_bld_debug.h"
+#include "lp_memory.h"
 #include "lp_rast.h"
 #include "lp_scene.h"
+#include "lp_state.h"
 #include "lp_texture.h"
 #include "lp_tile_soa.h"
+#include "lp_limits.h"
 
 
-#define MAX_THREADS 8  /* XXX probably temporary here */
+/* If we crash in a jitted function, we can examine jit_line and jit_state
+ * to get some info.  This is not thread-safe, however.
+ */
+#ifdef DEBUG
+
+extern int jit_line;
+extern const struct lp_rast_state *jit_state;
+
+#define BEGIN_JIT_CALL(state) \
+   do { \
+      jit_line = __LINE__; \
+      jit_state = state; \
+   } while (0)
+
+#define END_JIT_CALL() \
+   do { \
+      jit_line = 0; \
+      jit_state = NULL; \
+   } while (0)
+
+#else
+
+#define BEGIN_JIT_CALL(X)
+#define END_JIT_CALL()
+
+#endif
 
 
 struct lp_rasterizer;
@@ -53,14 +81,15 @@ struct lp_rasterizer_task
    uint8_t *color_tiles[PIPE_MAX_COLOR_BUFS];
    uint8_t *depth_tile;
 
-   const struct lp_rast_state *current_state;
-
    /** "back" pointer */
    struct lp_rasterizer *rast;
 
    /** "my" index */
    unsigned thread_index;
 
+   /* occlude counter for visiable pixels */
+   uint32_t vis_counter;
+
    pipe_semaphore work_ready;
    pipe_semaphore work_done;
 };
@@ -77,13 +106,6 @@ struct lp_rasterizer
 
    /* Framebuffer stuff
     */
-   struct {
-      void *map;
-      unsigned tiles_per_row;
-      unsigned blocksize;
-      enum pipe_format format;
-   } cbuf[PIPE_MAX_COLOR_BUFS];
-
    struct {
       uint8_t *map;
       unsigned stride;
@@ -107,26 +129,28 @@ struct lp_rasterizer
     * (potentially) shared, these empty scenes should be returned to
     * the context which created them rather than retained here.
     */
-   struct lp_scene_queue *empty_scenes;
+   /*   struct lp_scene_queue *empty_scenes; */
 
    /** The scene currently being rasterized by the threads */
    struct lp_scene *curr_scene;
 
    /** A task object for each rasterization thread */
-   struct lp_rasterizer_task tasks[MAX_THREADS];
+   struct lp_rasterizer_task tasks[LP_MAX_THREADS];
 
    unsigned num_threads;
-   pipe_thread threads[MAX_THREADS];
+   pipe_thread threads[LP_MAX_THREADS];
 
    /** For synchronizing the rasterization threads */
    pipe_barrier barrier;
 };
 
 
-void lp_rast_shade_quads( struct lp_rasterizer_task *task,
-                          const struct lp_rast_shader_inputs *inputs,
-                          unsigned x, unsigned y,
-                          int32_t c1, int32_t c2, int32_t c3);
+void
+lp_rast_shade_quads_mask(struct lp_rasterizer_task *task,
+                         const struct lp_rast_shader_inputs *inputs,
+                         unsigned x, unsigned y,
+                         unsigned mask);
+
 
 
 /**
@@ -137,18 +161,23 @@ void lp_rast_shade_quads( struct lp_rasterizer_task *task,
  * \param x, y location of 4x4 block in window coords
  */
 static INLINE void *
-lp_rast_get_depth_block_pointer(const struct lp_rasterizer *rast,
+lp_rast_get_depth_block_pointer(struct lp_rasterizer_task *task,
                                 unsigned x, unsigned y)
 {
+   const struct lp_rasterizer *rast = task->rast;
    void *depth;
 
    assert((x % TILE_VECTOR_WIDTH) == 0);
    assert((y % TILE_VECTOR_HEIGHT) == 0);
 
-   assert(rast->zsbuf.map || !rast->curr_scene->fb.zsbuf);
-
-   if (!rast->zsbuf.map)
-      return NULL;
+   if (!rast->zsbuf.map) {
+      /* Either out of memory or no zsbuf.  Can't tell without access
+       * to the state.  Just use dummy tile memory, but don't print
+       * the oom warning as this most likely because there is no
+       * zsbuf.
+       */
+      return lp_dummy_tile;
+   }
 
    depth = (rast->zsbuf.map +
             rast->zsbuf.stride * y +
@@ -159,6 +188,39 @@ lp_rast_get_depth_block_pointer(const struct lp_rasterizer *rast,
 }
 
 
+/**
+ * Get pointer to the swizzled color tile
+ */
+static INLINE uint8_t *
+lp_rast_get_color_tile_pointer(struct lp_rasterizer_task *task,
+                               unsigned buf, enum lp_texture_usage usage)
+{
+   struct lp_rasterizer *rast = task->rast;
+
+   assert(task->x % TILE_SIZE == 0);
+   assert(task->y % TILE_SIZE == 0);
+   assert(buf < rast->state.nr_cbufs);
+
+   if (!task->color_tiles[buf]) {
+      struct pipe_surface *cbuf = rast->curr_scene->fb.cbufs[buf];
+      struct llvmpipe_resource *lpt;
+      assert(cbuf);
+      lpt = llvmpipe_resource(cbuf->texture);
+      task->color_tiles[buf] = lp_swizzled_cbuf[task->thread_index][buf];
+
+      if (usage != LP_TEX_USAGE_WRITE_ALL) {
+         llvmpipe_swizzle_cbuf_tile(lpt,
+                                    cbuf->face + cbuf->zslice,
+                                    cbuf->level,
+                                    task->x, task->y,
+                                    task->color_tiles[buf]);
+      }
+   }
+
+   return task->color_tiles[buf];
+}
+
+
 /**
  * Get the pointer to a 4x4 color block (within a 64x64 tile).
  * We'll map the color buffer on demand here.
@@ -176,7 +238,7 @@ lp_rast_get_color_block_pointer(struct lp_rasterizer_task *task,
    assert((x % TILE_VECTOR_WIDTH) == 0);
    assert((y % TILE_VECTOR_HEIGHT) == 0);
 
-   color = task->color_tiles[buf];
+   color = lp_rast_get_color_tile_pointer(task, buf, LP_TEX_USAGE_READ_WRITE);
    assert(color);
 
    px = x % TILE_SIZE;
@@ -201,8 +263,9 @@ lp_rast_shade_quads_all( struct lp_rasterizer_task *task,
                          const struct lp_rast_shader_inputs *inputs,
                          unsigned x, unsigned y )
 {
-   struct lp_rasterizer *rast = task->rast;
-   const struct lp_rast_state *state = task->current_state;
+   const struct lp_rasterizer *rast = task->rast;
+   const struct lp_rast_state *state = inputs->state;
+   struct lp_fragment_shader_variant *variant = state->variant;
    uint8_t *color[PIPE_MAX_COLOR_BUFS];
    void *depth;
    unsigned i;
@@ -211,19 +274,21 @@ lp_rast_shade_quads_all( struct lp_rasterizer_task *task,
    for (i = 0; i < rast->state.nr_cbufs; i++)
       color[i] = lp_rast_get_color_block_pointer(task, i, x, y);
 
-   depth = lp_rast_get_depth_block_pointer(rast, x, y);
+   depth = lp_rast_get_depth_block_pointer(task, x, y);
 
    /* run shader on 4x4 block */
-   state->jit_function[RAST_WHOLE]( &state->jit_context,
-                                    x, y,
-                                    inputs->facing,
-                                    inputs->a0,
-                                    inputs->dadx,
-                                    inputs->dady,
-                                    color,
-                                    depth,
-                                    INT_MIN, INT_MIN, INT_MIN,
-                                    NULL, NULL, NULL );
+   BEGIN_JIT_CALL(state);
+   variant->jit_function[RAST_WHOLE]( &state->jit_context,
+                                      x, y,
+                                      inputs->facing,
+                                      inputs->a0,
+                                      inputs->dadx,
+                                      inputs->dady,
+                                      color,
+                                      depth,
+                                      0xffff,
+                                      &task->vis_counter );
+   END_JIT_CALL();
 }