Merge branch 'sprite-coord'

7 files changed, 72 insertions, 38 deletions

diff --git a/src/gallium/drivers/llvmpipe/lp_setup.c b/src/gallium/drivers/llvmpipe/lp_setup.c
index 6674d281d1e..ea7002aafcf 100644
--- a/src/gallium/drivers/llvmpipe/lp_setup.c
+++ b/src/gallium/drivers/llvmpipe/lp_setup.c
@@ -490,12 +490,14 @@ void
 lp_setup_set_point_state( struct lp_setup_context *setup,
                           float point_size,                          
                           boolean point_size_per_vertex,
-                          uint sprite)
+                          uint sprite_coord_enable,
+                          uint sprite_coord_origin)
 {
    LP_DBG(DEBUG_SETUP, "%s\n", __FUNCTION__);
 
    setup->point_size = point_size;
-   setup->sprite = sprite;
+   setup->sprite_coord_enable = sprite_coord_enable;
+   setup->sprite_coord_origin = sprite_coord_origin;
    setup->point_size_per_vertex = point_size_per_vertex;
 }
 
diff --git a/src/gallium/drivers/llvmpipe/lp_setup.h b/src/gallium/drivers/llvmpipe/lp_setup.h
index b94061b7d49..81ff43f8adc 100644
--- a/src/gallium/drivers/llvmpipe/lp_setup.h
+++ b/src/gallium/drivers/llvmpipe/lp_setup.h
@@ -107,7 +107,8 @@ void
 lp_setup_set_point_state( struct lp_setup_context *setup,
                           float point_size,                          
                           boolean point_size_per_vertex,
-                          uint sprite);
+                          uint sprite_coord_enable,
+                          uint sprite_coord_origin);
 
 void
 lp_setup_set_fs_inputs( struct lp_setup_context *setup,
diff --git a/src/gallium/drivers/llvmpipe/lp_setup_context.h b/src/gallium/drivers/llvmpipe/lp_setup_context.h
index 80b356476ab..8506ed2dc9e 100644
--- a/src/gallium/drivers/llvmpipe/lp_setup_context.h
+++ b/src/gallium/drivers/llvmpipe/lp_setup_context.h
@@ -73,7 +73,7 @@ struct lp_setup_context
    uint prim;
    uint vertex_size;
    uint nr_vertices;
-   uint sprite;
+   uint sprite_coord_enable, sprite_coord_origin;
    uint vertex_buffer_size;
    void *vertex_buffer;
 
diff --git a/src/gallium/drivers/llvmpipe/lp_setup_point.c b/src/gallium/drivers/llvmpipe/lp_setup_point.c
index 55389871518..774a3c80dad 100644
--- a/src/gallium/drivers/llvmpipe/lp_setup_point.c
+++ b/src/gallium/drivers/llvmpipe/lp_setup_point.c
@@ -52,26 +52,30 @@ struct point_info {
 /**
  * Compute a0 for a constant-valued coefficient (GL_FLAT shading).
  */
-static void constant_coef( struct lp_setup_context *setup,
-                           struct lp_rast_triangle *point,
-                           unsigned slot,
-                           const float value,
-                           unsigned i )
+static void
+constant_coef(struct lp_setup_context *setup,
+              struct lp_rast_triangle *point,
+              unsigned slot,
+              const float value,
+              unsigned i)
 {
    point->inputs.a0[slot][i] = value;
    point->inputs.dadx[slot][i] = 0.0f;
    point->inputs.dady[slot][i] = 0.0f;
 }
 
-static void perspective_coef( struct lp_setup_context *setup,
-                              struct lp_rast_triangle *point,
-                              const struct point_info *info,
-                              unsigned slot,
-                              unsigned vert_attr,
-                              unsigned i)
+
+static void
+perspective_coef(struct lp_setup_context *setup,
+                 struct lp_rast_triangle *point,
+                 const struct point_info *info,
+                 unsigned slot,
+                 unsigned vert_attr,
+                 unsigned i,
+                 unsigned sprite_coord_origin)
 {
-   if (i == 0) {   
-      float dadx = FIXED_ONE / (float)info->dx12;  
+   if (i == 0) {
+      float dadx = FIXED_ONE / (float)info->dx12;
       float dady =  0.0f;
       point->inputs.dadx[slot][i] = dadx;
       point->inputs.dady[slot][i] = dady;
@@ -79,30 +83,30 @@ static void perspective_coef( struct lp_setup_context *setup,
                                   (dadx * ((float)info->v0[0][0] - setup->pixel_offset) +
                                    dady * ((float)info->v0[0][1] - setup->pixel_offset)));
    }
-
    else if (i == 1) {
-      float dadx =  0.0f; 
-      float dady =  FIXED_ONE / (float)info->dx12;
-   
+      float dadx = 0.0f;
+      float dady = FIXED_ONE / (float)info->dx12;
+
+      if (sprite_coord_origin == PIPE_SPRITE_COORD_LOWER_LEFT) {
+         dady = -dady;
+      }
+
       point->inputs.dadx[slot][i] = dadx;
       point->inputs.dady[slot][i] = dady;
       point->inputs.a0[slot][i] = (0.5 -
-                                  (dadx * ((float)info->v0[0][0] - setup->pixel_offset) +
-                                   dady * ((float)info->v0[0][1] - setup->pixel_offset)));
+                                   (dadx * ((float)info->v0[0][0] - setup->pixel_offset) +
+                                    dady * ((float)info->v0[0][1] - setup->pixel_offset)));
    }
-
    else if (i == 2) {
       point->inputs.a0[slot][i] = 0.0f;
       point->inputs.dadx[slot][i] = 0.0f;
       point->inputs.dady[slot][i] = 0.0f;
    }
-      
    else if (i == 3) {
       point->inputs.a0[slot][i] = 1.0f;
       point->inputs.dadx[slot][i] = 0.0f;
       point->inputs.dady[slot][i] = 0.0f;
    }
-
 }
 
 
@@ -144,6 +148,7 @@ setup_point_fragcoord_coef(struct lp_setup_context *setup,
    }
 }
 
+
 /**
  * Compute the point->coef[] array dadx, dady, a0 values.
  */
@@ -152,6 +157,7 @@ setup_point_coefficients( struct lp_setup_context *setup,
                           struct lp_rast_triangle *point,
                           const struct point_info *info)
 {
+   const struct lp_fragment_shader *shader = setup->fs.current.variant->shader;
    unsigned fragcoord_usage_mask = TGSI_WRITEMASK_XYZ;
    unsigned slot;
 
@@ -172,17 +178,25 @@ setup_point_coefficients( struct lp_setup_context *setup,
          fragcoord_usage_mask |= usage_mask;
          break;
 
+      case LP_INTERP_LINEAR:
+         /* Sprite tex coords may use linear interpolation someday */
+         /* fall-through */
+
       case LP_INTERP_PERSPECTIVE:
-         /* For point sprite textures */        
-         if (setup->fs.current.variant->shader->info.input_semantic_name[slot] 
-             == TGSI_SEMANTIC_GENERIC) 
-         {
-            int index = setup->fs.current.variant->shader->info.input_semantic_index[slot];
-            
-            if (setup->sprite & (1 << index)) {
+         /* check if the sprite coord flag is set for this attribute.
+          * If so, set it up so it up so x any y vary from 0 to 1.
+          */
+         if (shader->info.input_semantic_name[slot] == TGSI_SEMANTIC_GENERIC) {
+            const int index = shader->info.input_semantic_index[slot];
+            /* Note that sprite_coord enable is a bitfield of
+             * PIPE_MAX_SHADER_OUTPUTS bits.
+             */
+            if (index < PIPE_MAX_SHADER_OUTPUTS &&
+                (setup->sprite_coord_enable & (1 << index))) {
                for (i = 0; i < NUM_CHANNELS; i++)
                   if (usage_mask & (1 << i))
-                     perspective_coef(setup, point, info, slot+1, vert_attr, i);
+                     perspective_coef(setup, point, info, slot+1, vert_attr, i,
+                                      setup->sprite_coord_origin);
                fragcoord_usage_mask |= TGSI_WRITEMASK_W;
                break;                     
             }
@@ -203,6 +217,7 @@ setup_point_coefficients( struct lp_setup_context *setup,
                               fragcoord_usage_mask);
 }
 
+
 static INLINE int
 subpixel_snap(float a)
 {
@@ -322,8 +337,9 @@ try_setup_point( struct lp_setup_context *setup,
 }
 
 
-static void lp_setup_point( struct lp_setup_context *setup,
-                           const float (*v0)[4] )
+static void 
+lp_setup_point(struct lp_setup_context *setup,
+               const float (*v0)[4])
 {
    if (!try_setup_point( setup, v0 ))
    {
diff --git a/src/gallium/drivers/llvmpipe/lp_state_fs.c b/src/gallium/drivers/llvmpipe/lp_state_fs.c
index e54dd9f0a3c..fb673db6d0f 100644
--- a/src/gallium/drivers/llvmpipe/lp_state_fs.c
+++ b/src/gallium/drivers/llvmpipe/lp_state_fs.c
@@ -886,6 +886,7 @@ static void *
 llvmpipe_create_fs_state(struct pipe_context *pipe,
                          const struct pipe_shader_state *templ)
 {
+   struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe);
    struct lp_fragment_shader *shader;
    int nr_samplers;
 
@@ -902,6 +903,12 @@ llvmpipe_create_fs_state(struct pipe_context *pipe,
    /* we need to keep a local copy of the tokens */
    shader->base.tokens = tgsi_dup_tokens(templ->tokens);
 
+   shader->draw_data = draw_create_fragment_shader(llvmpipe->draw, templ);
+   if (shader->draw_data == NULL) {
+      FREE((void *) shader->base.tokens);
+      return NULL;
+   }
+
    nr_samplers = shader->info.file_max[TGSI_FILE_SAMPLER] + 1;
 
    shader->variant_key_size = Offset(struct lp_fragment_shader_variant_key,
@@ -938,6 +945,9 @@ llvmpipe_bind_fs_state(struct pipe_context *pipe, void *fs)
 
    draw_flush(llvmpipe->draw);
 
+   draw_bind_fragment_shader(llvmpipe->draw,
+                             (llvmpipe->fs ? llvmpipe->fs->draw_data : NULL));
+
    llvmpipe->fs = fs;
 
    llvmpipe->dirty |= LP_NEW_FS;
@@ -995,6 +1005,8 @@ llvmpipe_delete_fs_state(struct pipe_context *pipe, void *fs)
       li = next;
    }
 
+   draw_delete_fragment_shader(llvmpipe->draw, shader->draw_data);
+
    assert(shader->variants_cached == 0);
    FREE((void *) shader->base.tokens);
    FREE(shader);
diff --git a/src/gallium/drivers/llvmpipe/lp_state_fs.h b/src/gallium/drivers/llvmpipe/lp_state_fs.h
index 2914e7d7efd..4999b8dca1a 100644
--- a/src/gallium/drivers/llvmpipe/lp_state_fs.h
+++ b/src/gallium/drivers/llvmpipe/lp_state_fs.h
@@ -100,6 +100,8 @@ struct lp_fragment_shader
 
    struct lp_fs_variant_list_item variants;
 
+   struct draw_fragment_shader *draw_data;
+
    /* For debugging/profiling purposes */
    unsigned variant_key_size;
    unsigned no;
diff --git a/src/gallium/drivers/llvmpipe/lp_state_rasterizer.c b/src/gallium/drivers/llvmpipe/lp_state_rasterizer.c
index 0bad7320f3e..dbd73812e45 100644
--- a/src/gallium/drivers/llvmpipe/lp_state_rasterizer.c
+++ b/src/gallium/drivers/llvmpipe/lp_state_rasterizer.c
@@ -78,8 +78,9 @@ llvmpipe_bind_rasterizer_state(struct pipe_context *pipe, void *handle)
       lp_setup_set_point_state( llvmpipe->setup,
                    llvmpipe->rasterizer->point_size,
                    llvmpipe->rasterizer->point_size_per_vertex,
-                   llvmpipe->rasterizer->sprite_coord_enable);
-       }
+                   llvmpipe->rasterizer->sprite_coord_enable,
+                   llvmpipe->rasterizer->sprite_coord_mode);
+   }
 
    llvmpipe->dirty |= LP_NEW_RASTERIZER;
 }