i965: Remove brw->attribs now that we can just always look in the GLcontext.
[mesa.git] / src / mesa / drivers / dri / i965 / brw_sf_state.c
index 5a0106f77ec22c1a03ab0044a82a5c4e38ebbd1c..e96d5354b300244fe20265ab515ae05c8d5dfc85 100644 (file)
 #include "brw_context.h"
 #include "brw_state.h"
 #include "brw_defines.h"
-#include "macros.h"
+#include "main/macros.h"
+#include "intel_fbo.h"
 
 static void upload_sf_vp(struct brw_context *brw)
 {
+   GLcontext *ctx = &brw->intel.ctx;
+   const GLfloat depth_scale = 1.0F / ctx->DrawBuffer->_DepthMaxF;
    struct brw_sf_viewport sfv;
+   GLfloat y_scale, y_bias;
+   const GLboolean render_to_fbo = (ctx->DrawBuffer->Name != 0);
 
    memset(&sfv, 0, sizeof(sfv));
-   
-   if (brw->intel.driDrawable) 
-   {
-      /* _NEW_VIEWPORT, BRW_NEW_METAOPS */
-
-      if (!brw->metaops.active) {
-        const GLfloat *v = brw->intel.ctx.Viewport._WindowMap.m;
-        
-        sfv.viewport.m00 =   v[MAT_SX];
-        sfv.viewport.m11 = - v[MAT_SY];
-        sfv.viewport.m22 =   v[MAT_SZ] * brw->intel.depth_scale;
-        sfv.viewport.m30 =   v[MAT_TX];
-        sfv.viewport.m31 = - v[MAT_TY] + brw->intel.driDrawable->h;
-        sfv.viewport.m32 =   v[MAT_TZ] * brw->intel.depth_scale;
-      }
-      else {
-        sfv.viewport.m00 =   1;
-        sfv.viewport.m11 = - 1;
-        sfv.viewport.m22 =   1;
-        sfv.viewport.m30 =   0;
-        sfv.viewport.m31 =   brw->intel.driDrawable->h;
-        sfv.viewport.m32 =   0;
-      }
+
+   if (render_to_fbo) {
+      y_scale = 1.0;
+      y_bias = 0;
    }
+   else {
+      y_scale = -1.0;
+      y_bias = ctx->DrawBuffer->Height;
+   }
+
+   /* _NEW_VIEWPORT */
+
+   const GLfloat *v = ctx->Viewport._WindowMap.m;
+
+   sfv.viewport.m00 = v[MAT_SX];
+   sfv.viewport.m11 = v[MAT_SY] * y_scale;
+   sfv.viewport.m22 = v[MAT_SZ] * depth_scale;
+   sfv.viewport.m30 = v[MAT_TX];
+   sfv.viewport.m31 = v[MAT_TY] * y_scale + y_bias;
+   sfv.viewport.m32 = v[MAT_TZ] * depth_scale;
+
+   /* _NEW_SCISSOR */
 
-   /* XXX: what state for this? */
-   if (brw->intel.driDrawable)
-   {
-      intelScreenPrivate *screen = brw->intel.intelScreen;
-      /* _NEW_SCISSOR */
-      GLint x = brw->attribs.Scissor->X;
-      GLint y = brw->attribs.Scissor->Y;
-      GLuint w = brw->attribs.Scissor->Width;
-      GLuint h = brw->attribs.Scissor->Height;
-
-      GLint x1 = x;
-      GLint y1 = brw->intel.driDrawable->h - (y + h);
-      GLint x2 = x + w - 1;
-      GLint y2 = y1 + h - 1;
-
-      if (x1 < 0) x1 = 0;
-      if (y1 < 0) y1 = 0;
-      if (x2 < 0) x2 = 0;
-      if (y2 < 0) y2 = 0;
-
-      if (x2 >= screen->width) x2 = screen->width-1;
-      if (y2 >= screen->height) y2 = screen->height-1;
-      if (x1 >= screen->width) x1 = screen->width-1;
-      if (y1 >= screen->height) y1 = screen->height-1;
-      
-      sfv.scissor.xmin = x1;
-      sfv.scissor.xmax = x2;
-      sfv.scissor.ymin = y1;
-      sfv.scissor.ymax = y2;
+   /* The scissor only needs to handle the intersection of drawable and
+    * scissor rect.  Clipping to the boundaries of static shared buffers
+    * for front/back/depth is covered by looping over cliprects in brw_draw.c.
+    *
+    * Note that the hardware's coordinates are inclusive, while Mesa's min is
+    * inclusive but max is exclusive.
+    */
+   if (render_to_fbo) {
+      /* texmemory: Y=0=bottom */
+      sfv.scissor.xmin = ctx->DrawBuffer->_Xmin;
+      sfv.scissor.xmax = ctx->DrawBuffer->_Xmax - 1;
+      sfv.scissor.ymin = ctx->DrawBuffer->_Ymin;
+      sfv.scissor.ymax = ctx->DrawBuffer->_Ymax - 1;
+   }
+   else {
+      /* memory: Y=0=top */
+      sfv.scissor.xmin = ctx->DrawBuffer->_Xmin;
+      sfv.scissor.xmax = ctx->DrawBuffer->_Xmax - 1;
+      sfv.scissor.ymin = ctx->DrawBuffer->Height - ctx->DrawBuffer->_Ymax;
+      sfv.scissor.ymax = ctx->DrawBuffer->Height - ctx->DrawBuffer->_Ymin - 1;
    }
 
    dri_bo_unreference(brw->sf.vp_bo);
@@ -105,93 +99,147 @@ const struct brw_tracked_state brw_sf_vp = {
    .dirty = {
       .mesa  = (_NEW_VIEWPORT | 
                _NEW_SCISSOR),
-      .brw   = BRW_NEW_METAOPS,
+      .brw   = 0,
       .cache = 0
    },
-   .update = upload_sf_vp
+   .prepare = upload_sf_vp
 };
 
+struct brw_sf_unit_key {
+   unsigned int total_grf;
+   unsigned int urb_entry_read_length;
 
+   unsigned int nr_urb_entries, urb_size, sfsize;
 
-static void upload_sf_unit( struct brw_context *brw )
+   GLenum front_face, cull_face;
+   unsigned scissor:1;
+   unsigned line_smooth:1;
+   unsigned point_sprite:1;
+   unsigned point_attenuated:1;
+   unsigned render_to_fbo:1;
+   float line_width;
+   float point_size;
+};
+
+static void
+sf_unit_populate_key(struct brw_context *brw, struct brw_sf_unit_key *key)
+{
+   GLcontext *ctx = &brw->intel.ctx;
+   memset(key, 0, sizeof(*key));
+
+   /* CACHE_NEW_SF_PROG */
+   key->total_grf = brw->sf.prog_data->total_grf;
+   key->urb_entry_read_length = brw->sf.prog_data->urb_read_length;
+
+   /* BRW_NEW_URB_FENCE */
+   key->nr_urb_entries = brw->urb.nr_sf_entries;
+   key->urb_size = brw->urb.vsize;
+   key->sfsize = brw->urb.sfsize;
+
+   key->scissor = ctx->Scissor.Enabled;
+   key->front_face = ctx->Polygon.FrontFace;
+
+   if (ctx->Polygon.CullFlag)
+      key->cull_face = ctx->Polygon.CullFaceMode;
+   else
+      key->cull_face = GL_NONE;
+
+   key->line_width = ctx->Line.Width;
+   key->line_smooth = ctx->Line.SmoothFlag;
+
+   key->point_sprite = ctx->Point.PointSprite;
+   key->point_size = ctx->Point.Size;
+   key->point_attenuated = ctx->Point._Attenuated;
+
+   key->render_to_fbo = brw->intel.ctx.DrawBuffer->Name != 0;
+}
+
+static dri_bo *
+sf_unit_create_from_key(struct brw_context *brw, struct brw_sf_unit_key *key,
+                       dri_bo **reloc_bufs)
 {
    struct brw_sf_unit_state sf;
+   dri_bo *bo;
+
    memset(&sf, 0, sizeof(sf));
-   dri_bo *reloc_bufs[2];
 
-   /* CACHE_NEW_SF_PROG */
-   sf.thread0.grf_reg_count = ALIGN(brw->sf.prog_data->total_grf, 16) / 16 - 1;
+   sf.thread0.grf_reg_count = ALIGN(key->total_grf, 16) / 16 - 1;
    sf.thread0.kernel_start_pointer = brw->sf.prog_bo->offset >> 6; /* reloc */
-   sf.thread3.urb_entry_read_length = brw->sf.prog_data->urb_read_length;
 
    sf.thread1.floating_point_mode = BRW_FLOATING_POINT_NON_IEEE_754;
+
    sf.thread3.dispatch_grf_start_reg = 3;
    sf.thread3.urb_entry_read_offset = 1;
+   sf.thread3.urb_entry_read_length = key->urb_entry_read_length;
 
-   /* BRW_NEW_URB_FENCE */
-   sf.thread4.nr_urb_entries = brw->urb.nr_sf_entries;
-   sf.thread4.urb_entry_allocation_size = brw->urb.sfsize - 1;
-   sf.thread4.max_threads = MIN2(12, brw->urb.nr_sf_entries / 2) - 1;
+   sf.thread4.nr_urb_entries = key->nr_urb_entries;
+   sf.thread4.urb_entry_allocation_size = key->sfsize - 1;
+   /* Each SF thread produces 1 PUE, and there can be up to 24 threads */
+   sf.thread4.max_threads = MIN2(24, key->nr_urb_entries) - 1;
 
    if (INTEL_DEBUG & DEBUG_SINGLE_THREAD)
-      sf.thread4.max_threads = 0; 
+      sf.thread4.max_threads = 0;
 
    if (INTEL_DEBUG & DEBUG_STATS)
-      sf.thread4.stats_enable = 1; 
+      sf.thread4.stats_enable = 1;
 
    /* CACHE_NEW_SF_VP */
    sf.sf5.sf_viewport_state_offset = brw->sf.vp_bo->offset >> 5; /* reloc */
-   
+
    sf.sf5.viewport_transform = 1;
-   
+
    /* _NEW_SCISSOR */
-   if (brw->attribs.Scissor->Enabled) 
-      sf.sf6.scissor = 1;  
+   if (key->scissor)
+      sf.sf6.scissor = 1;
 
    /* _NEW_POLYGON */
-   if (brw->attribs.Polygon->FrontFace == GL_CCW)
+   if (key->front_face == GL_CCW)
       sf.sf5.front_winding = BRW_FRONTWINDING_CCW;
    else
       sf.sf5.front_winding = BRW_FRONTWINDING_CW;
 
-   if (brw->attribs.Polygon->CullFlag) {
-      switch (brw->attribs.Polygon->CullFaceMode) {
-      case GL_FRONT:
-        sf.sf6.cull_mode = BRW_CULLMODE_FRONT;
-        break;
-      case GL_BACK:
-        sf.sf6.cull_mode = BRW_CULLMODE_BACK;
-        break;
-      case GL_FRONT_AND_BACK:
-        sf.sf6.cull_mode = BRW_CULLMODE_BOTH;
-        break;
-      default:
-        assert(0);
-        break;
-      }
-   }
-   else
+   /* The viewport is inverted for rendering to a FBO, and that inverts
+    * polygon front/back orientation.
+    */
+   sf.sf5.front_winding ^= key->render_to_fbo;
+
+   switch (key->cull_face) {
+   case GL_FRONT:
+      sf.sf6.cull_mode = BRW_CULLMODE_FRONT;
+      break;
+   case GL_BACK:
+      sf.sf6.cull_mode = BRW_CULLMODE_BACK;
+      break;
+   case GL_FRONT_AND_BACK:
+      sf.sf6.cull_mode = BRW_CULLMODE_BOTH;
+      break;
+   case GL_NONE:
       sf.sf6.cull_mode = BRW_CULLMODE_NONE;
-      
+      break;
+   default:
+      assert(0);
+      break;
+   }
 
    /* _NEW_LINE */
    /* XXX use ctx->Const.Min/MaxLineWidth here */
-   sf.sf6.line_width = CLAMP(brw->attribs.Line->Width, 1.0, 5.0) * (1<<1);
+   sf.sf6.line_width = CLAMP(key->line_width, 1.0, 5.0) * (1<<1);
 
    sf.sf6.line_endcap_aa_region_width = 1;
-   if (brw->attribs.Line->SmoothFlag)
+   if (key->line_smooth)
       sf.sf6.aa_enable = 1;
-   else if (sf.sf6.line_width <= 0x2) 
-       sf.sf6.line_width = 0; 
+   else if (sf.sf6.line_width <= 0x2)
+       sf.sf6.line_width = 0;
 
    /* _NEW_POINT */
-   sf.sf6.point_rast_rule = 1; /* opengl conventions */
+   sf.sf6.point_rast_rule = BRW_RASTRULE_UPPER_RIGHT;  /* opengl conventions */
    /* XXX clamp max depends on AA vs. non-AA */
 
-   sf.sf7.sprite_point = brw->attribs.Point->PointSprite;
-   sf.sf7.point_size = CLAMP(brw->attribs.Point->Size, 1.0, 255.0) * (1<<3);
-   sf.sf7.use_point_size_state = !brw->attribs.Point->_Attenuated;
-      
+   sf.sf7.sprite_point = key->point_sprite;
+   sf.sf7.point_size = CLAMP(rint(key->point_size), 1, 255) * (1<<3);
+   sf.sf7.use_point_size_state = !key->point_attenuated;
+   sf.sf7.aa_line_distance_mode = 0;
+
    /* might be BRW_NEW_PRIMITIVE if we have to adjust pv for polygons:
     */
    sf.sf7.trifan_pv = 2;
@@ -204,32 +252,47 @@ static void upload_sf_unit( struct brw_context *brw )
    sf.sf6.dest_org_vbias = 0x8;
    sf.sf6.dest_org_hbias = 0x8;
 
-   reloc_bufs[0] = brw->sf.prog_bo;
-   reloc_bufs[1] = brw->sf.vp_bo;
+   bo = brw_upload_cache(&brw->cache, BRW_SF_UNIT,
+                        key, sizeof(*key),
+                        reloc_bufs, 2,
+                        &sf, sizeof(sf),
+                        NULL, NULL);
 
-   brw->sf.thread0_delta = sf.thread0.grf_reg_count << 1;
-   brw->sf.sf5_delta = sf.sf5.front_winding | (sf.sf5.viewport_transform << 1);
+   /* Emit SF program relocation */
+   dri_bo_emit_reloc(bo,
+                    I915_GEM_DOMAIN_INSTRUCTION, 0,
+                    sf.thread0.grf_reg_count << 1,
+                    offsetof(struct brw_sf_unit_state, thread0),
+                    brw->sf.prog_bo);
 
-   dri_bo_unreference(brw->sf.state_bo);
-   brw->sf.state_bo = brw_cache_data( &brw->cache, BRW_SF_UNIT, &sf,
-                                     reloc_bufs, 2 );
+   /* Emit SF viewport relocation */
+   dri_bo_emit_reloc(bo,
+                    I915_GEM_DOMAIN_INSTRUCTION, 0,
+                    sf.sf5.front_winding | (sf.sf5.viewport_transform << 1),
+                    offsetof(struct brw_sf_unit_state, sf5),
+                    brw->sf.vp_bo);
+
+   return bo;
 }
 
-static void emit_reloc_sf_unit(struct brw_context *brw)
+static void upload_sf_unit( struct brw_context *brw )
 {
-   /* Emit SF program relocation */
-   dri_emit_reloc(brw->sf.state_bo,
-                 DRM_BO_FLAG_MEM_TT | DRM_BO_FLAG_READ,
-                 brw->sf.thread0_delta,
-                 offsetof(struct brw_sf_unit_state, thread0),
-                 brw->sf.prog_bo);
+   struct brw_sf_unit_key key;
+   dri_bo *reloc_bufs[2];
 
-   /* Emit SF viewport relocation */
-   dri_emit_reloc(brw->sf.state_bo,
-                 DRM_BO_FLAG_MEM_TT | DRM_BO_FLAG_READ,
-                 brw->sf.sf5_delta,
-                 offsetof(struct brw_sf_unit_state, sf5),
-                 brw->sf.vp_bo);
+   sf_unit_populate_key(brw, &key);
+
+   reloc_bufs[0] = brw->sf.prog_bo;
+   reloc_bufs[1] = brw->sf.vp_bo;
+
+   dri_bo_unreference(brw->sf.state_bo);
+   brw->sf.state_bo = brw_search_cache(&brw->cache, BRW_SF_UNIT,
+                                      &key, sizeof(key),
+                                      reloc_bufs, 2,
+                                      NULL);
+   if (brw->sf.state_bo == NULL) {
+      brw->sf.state_bo = sf_unit_create_from_key(brw, &key, reloc_bufs);
+   }
 }
 
 const struct brw_tracked_state brw_sf_unit = {
@@ -238,11 +301,9 @@ const struct brw_tracked_state brw_sf_unit = {
                _NEW_LINE | 
                _NEW_POINT | 
                _NEW_SCISSOR),
-      .brw   = (BRW_NEW_URB_FENCE |
-               BRW_NEW_METAOPS),
+      .brw   = BRW_NEW_URB_FENCE,
       .cache = (CACHE_NEW_SF_VP |
                CACHE_NEW_SF_PROG)
    },
-   .update = upload_sf_unit,
-   .emit_reloc = emit_reloc_sf_unit,
+   .prepare = upload_sf_unit,
 };