gallium: Fix uninitialized variable warning in compute test.
[mesa.git] / src / gallium / auxiliary / util / u_blit.c
index d4fbd658f40394af34fc650558feb3d95c66f908..15edf2f48dc1d6e0f717637028ff6ddf3290d1db 100644 (file)
@@ -1,6 +1,6 @@
 /**************************************************************************
  *
- * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * Copyright 2008 VMware, Inc.
  * All Rights Reserved.
  *
  * Permission is hereby granted, free of charge, to any person obtaining a
@@ -18,7 +18,7 @@
  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
- * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
@@ -28,7 +28,7 @@
 /**
  * @file
  * Copy/blit pixel rect between surfaces
- *  
+ *
  * @author Brian Paul
  */
 
@@ -46,8 +46,8 @@
 #include "util/u_math.h"
 #include "util/u_memory.h"
 #include "util/u_sampler.h"
+#include "util/u_texture.h"
 #include "util/u_simple_shaders.h"
-#include "util/u_surface.h"
 
 #include "cso_cache/cso_context.h"
 
@@ -57,16 +57,15 @@ struct blit_state
    struct pipe_context *pipe;
    struct cso_context *cso;
 
-   struct pipe_blend_state blend;
-   struct pipe_depth_stencil_alpha_state depthstencil;
+   struct pipe_blend_state blend_write_color;
+   struct pipe_depth_stencil_alpha_state dsa_keep_depthstencil;
    struct pipe_rasterizer_state rasterizer;
    struct pipe_sampler_state sampler;
    struct pipe_viewport_state viewport;
-   struct pipe_clip_state clip;
    struct pipe_vertex_element velem[2];
 
    void *vs;
-   void *fs[TGSI_WRITEMASK_XYZW + 1];
+   void *fs[PIPE_MAX_TEXTURE_TYPES][4];
 
    struct pipe_resource *vbuf;  /**< quad vertices */
    unsigned vbuf_slot;
@@ -93,29 +92,24 @@ util_create_blit(struct pipe_context *pipe, struct cso_context *cso)
    ctx->cso = cso;
 
    /* disabled blending/masking */
-   memset(&ctx->blend, 0, sizeof(ctx->blend));
-   ctx->blend.rt[0].colormask = PIPE_MASK_RGBA;
-
-   /* no-op depth/stencil/alpha */
-   memset(&ctx->depthstencil, 0, sizeof(ctx->depthstencil));
+   ctx->blend_write_color.rt[0].colormask = PIPE_MASK_RGBA;
 
    /* rasterizer */
-   memset(&ctx->rasterizer, 0, sizeof(ctx->rasterizer));
    ctx->rasterizer.cull_face = PIPE_FACE_NONE;
-   ctx->rasterizer.gl_rasterization_rules = 1;
+   ctx->rasterizer.half_pixel_center = 1;
+   ctx->rasterizer.bottom_edge_rule = 1;
+   ctx->rasterizer.depth_clip_near = 1;
+   ctx->rasterizer.depth_clip_far = 1;
 
    /* samplers */
-   memset(&ctx->sampler, 0, sizeof(ctx->sampler));
    ctx->sampler.wrap_s = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
    ctx->sampler.wrap_t = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
    ctx->sampler.wrap_r = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
    ctx->sampler.min_mip_filter = PIPE_TEX_MIPFILTER_NONE;
    ctx->sampler.min_img_filter = 0; /* set later */
    ctx->sampler.mag_img_filter = 0; /* set later */
-   ctx->sampler.normalized_coords = 1;
 
    /* vertex elements state */
-   memset(&ctx->velem[0], 0, sizeof(ctx->velem[0]) * 2);
    for (i = 0; i < 2; i++) {
       ctx->velem[i].src_offset = i * 4 * sizeof(float);
       ctx->velem[i].instance_divisor = 0;
@@ -123,26 +117,11 @@ util_create_blit(struct pipe_context *pipe, struct cso_context *cso)
       ctx->velem[i].src_format = PIPE_FORMAT_R32G32B32A32_FLOAT;
    }
 
-   /* vertex shader - still required to provide the linkage between
-    * fragment shader input semantics and vertex_element/buffers.
-    */
-   {
-      const uint semantic_names[] = { TGSI_SEMANTIC_POSITION,
-                                      TGSI_SEMANTIC_GENERIC };
-      const uint semantic_indexes[] = { 0, 0 };
-      ctx->vs = util_make_vertex_passthrough_shader(pipe, 2, semantic_names,
-                                                    semantic_indexes);
-   }
-
-   /* fragment shader */
-   ctx->fs[TGSI_WRITEMASK_XYZW] =
-      util_make_fragment_tex_shader(pipe, TGSI_TEXTURE_2D);
    ctx->vbuf = NULL;
 
    /* init vertex data that doesn't change */
    for (i = 0; i < 4; i++) {
       ctx->vertices[i][0][3] = 1.0f; /* w */
-      ctx->vertices[i][1][2] = 0.0f; /* r */
       ctx->vertices[i][1][3] = 1.0f; /* q */
    }
 
@@ -157,13 +136,17 @@ void
 util_destroy_blit(struct blit_state *ctx)
 {
    struct pipe_context *pipe = ctx->pipe;
-   unsigned i;
+   unsigned i, j;
 
-   pipe->delete_vs_state(pipe, ctx->vs);
+   if (ctx->vs)
+      pipe->delete_vs_state(pipe, ctx->vs);
 
-   for (i = 0; i < Elements(ctx->fs); i++)
-      if (ctx->fs[i])
-         pipe->delete_fs_state(pipe, ctx->fs[i]);
+   for (i = 0; i < ARRAY_SIZE(ctx->fs); i++) {
+      for (j = 0; j < ARRAY_SIZE(ctx->fs[i]); j++) {
+         if (ctx->fs[i][j])
+            pipe->delete_fs_state(pipe, ctx->fs[i][j]);
+      }
+   }
 
    pipe_resource_reference(&ctx->vbuf, NULL);
 
@@ -171,23 +154,97 @@ util_destroy_blit(struct blit_state *ctx)
 }
 
 
+/**
+ * Helper function to set the fragment shaders.
+ */
+static inline void
+set_fragment_shader(struct blit_state *ctx,
+                    enum pipe_format format,
+                    boolean src_xrbias,
+                    enum pipe_texture_target pipe_tex)
+{
+   enum tgsi_return_type stype;
+   unsigned idx;
+
+   if (util_format_is_pure_uint(format)) {
+      stype = TGSI_RETURN_TYPE_UINT;
+      idx = 0;
+   } else if (util_format_is_pure_sint(format)) {
+      stype = TGSI_RETURN_TYPE_SINT;
+      idx = 1;
+   } else {
+      stype = TGSI_RETURN_TYPE_FLOAT;
+      idx = 2;
+   }
+
+   if (src_xrbias) {
+      assert(stype == TGSI_RETURN_TYPE_FLOAT);
+      idx = 3;
+      if (!ctx->fs[pipe_tex][idx]) {
+         enum tgsi_texture_type tgsi_tex =
+            util_pipe_tex_to_tgsi_tex(pipe_tex, 0);
+         ctx->fs[pipe_tex][idx] =
+            util_make_fragment_tex_shader_xrbias(ctx->pipe, tgsi_tex);
+      }
+   }
+   else if (!ctx->fs[pipe_tex][idx]) {
+      enum tgsi_texture_type tgsi_tex = util_pipe_tex_to_tgsi_tex(pipe_tex, 0);
+
+      /* OpenGL does not allow blits from signed to unsigned integer
+       * or vice versa. */
+      ctx->fs[pipe_tex][idx] =
+         util_make_fragment_tex_shader_writemask(ctx->pipe, tgsi_tex,
+                                                 TGSI_INTERPOLATE_LINEAR,
+                                                 TGSI_WRITEMASK_XYZW,
+                                                 stype, stype, false, false);
+   }
+
+   cso_set_fragment_shader_handle(ctx->cso, ctx->fs[pipe_tex][idx]);
+}
+
+
+/**
+ * Helper function to set the vertex shader.
+ */
+static inline void
+set_vertex_shader(struct blit_state *ctx)
+{
+   /* vertex shader - still required to provide the linkage between
+    * fragment shader input semantics and vertex_element/buffers.
+    */
+   if (!ctx->vs) {
+      const uint semantic_names[] = { TGSI_SEMANTIC_POSITION,
+                                      TGSI_SEMANTIC_GENERIC };
+      const uint semantic_indexes[] = { 0, 0 };
+      ctx->vs = util_make_vertex_passthrough_shader(ctx->pipe, 2,
+                                                    semantic_names,
+                                                    semantic_indexes, FALSE);
+   }
+
+   cso_set_vertex_shader_handle(ctx->cso, ctx->vs);
+}
+
+
 /**
  * Get offset of next free slot in vertex buffer for quad vertices.
  */
 static unsigned
-get_next_slot( struct blit_state *ctx )
+get_next_slot(struct blit_state *ctx)
 {
    const unsigned max_slots = 4096 / sizeof ctx->vertices;
 
-   if (ctx->vbuf_slot >= max_slots) 
-      util_blit_flush( ctx );
+   if (ctx->vbuf_slot >= max_slots) {
+      pipe_resource_reference(&ctx->vbuf, NULL);
+      ctx->vbuf_slot = 0;
+   }
 
    if (!ctx->vbuf) {
       ctx->vbuf = pipe_buffer_create(ctx->pipe->screen,
                                      PIPE_BIND_VERTEX_BUFFER,
+                                     PIPE_USAGE_STREAM,
                                      max_slots * sizeof ctx->vertices);
    }
-   
+
    return ctx->vbuf_slot++ * sizeof ctx->vertices;
 }
 
@@ -197,9 +254,14 @@ get_next_slot( struct blit_state *ctx )
 /**
  * Setup vertex data for the textured quad we'll draw.
  * Note: y=0=top
+ *
+ * FIXME: We should call util_map_texcoords2d_onto_cubemap
+ * for cubemaps.
  */
 static unsigned
 setup_vertex_data_tex(struct blit_state *ctx,
+                      enum pipe_texture_target src_target,
+                      unsigned src_face,
                       float x0, float y0, float x1, float y1,
                       float s0, float t0, float s1, float t1,
                       float z)
@@ -211,29 +273,46 @@ setup_vertex_data_tex(struct blit_state *ctx,
    ctx->vertices[0][0][2] = z;
    ctx->vertices[0][1][0] = s0; /*s*/
    ctx->vertices[0][1][1] = t0; /*t*/
+   ctx->vertices[0][1][2] = 0;  /*r*/
 
    ctx->vertices[1][0][0] = x1;
    ctx->vertices[1][0][1] = y0;
    ctx->vertices[1][0][2] = z;
    ctx->vertices[1][1][0] = s1; /*s*/
    ctx->vertices[1][1][1] = t0; /*t*/
+   ctx->vertices[1][1][2] = 0;  /*r*/
 
    ctx->vertices[2][0][0] = x1;
    ctx->vertices[2][0][1] = y1;
    ctx->vertices[2][0][2] = z;
    ctx->vertices[2][1][0] = s1;
    ctx->vertices[2][1][1] = t1;
+   ctx->vertices[3][1][2] = 0;
 
    ctx->vertices[3][0][0] = x0;
    ctx->vertices[3][0][1] = y1;
    ctx->vertices[3][0][2] = z;
    ctx->vertices[3][1][0] = s0;
    ctx->vertices[3][1][1] = t1;
+   ctx->vertices[3][1][2] = 0;
+
+   if (src_target == PIPE_TEXTURE_CUBE ||
+       src_target == PIPE_TEXTURE_CUBE_ARRAY) {
+      /* Map cubemap texture coordinates inplace. */
+      const unsigned stride =
+         sizeof ctx->vertices[0] / sizeof ctx->vertices[0][0][0];
+      util_map_texcoords2d_onto_cubemap(src_face,
+                                        &ctx->vertices[0][1][0], stride,
+                                        &ctx->vertices[0][1][0], stride,
+                                        TRUE);
+   }
 
-   offset = get_next_slot( ctx );
+   offset = get_next_slot(ctx);
 
-   pipe_buffer_write_nooverlap(ctx->pipe, ctx->vbuf,
-                               offset, sizeof(ctx->vertices), ctx->vertices);
+   if (ctx->vbuf) {
+      pipe_buffer_write_nooverlap(ctx->pipe, ctx->vbuf,
+                                  offset, sizeof(ctx->vertices), ctx->vertices);
+   }
 
    return offset;
 }
@@ -248,75 +327,122 @@ regions_overlap(int srcX0, int srcY0,
                 int dstX0, int dstY0,
                 int dstX1, int dstY1)
 {
-   if (MAX2(srcX0, srcX1) < MIN2(dstX0, dstX1))
+   if (MAX2(srcX0, srcX1) <= MIN2(dstX0, dstX1))
       return FALSE; /* src completely left of dst */
 
-   if (MAX2(dstX0, dstX1) < MIN2(srcX0, srcX1))
+   if (MAX2(dstX0, dstX1) <= MIN2(srcX0, srcX1))
       return FALSE; /* dst completely left of src */
 
-   if (MAX2(srcY0, srcY1) < MIN2(dstY0, dstY1))
+   if (MAX2(srcY0, srcY1) <= MIN2(dstY0, dstY1))
       return FALSE; /* src completely above dst */
 
-   if (MAX2(dstY0, dstY1) < MIN2(srcY0, srcY1))
+   if (MAX2(dstY0, dstY1) <= MIN2(srcY0, srcY1))
       return FALSE; /* dst completely above src */
 
    return TRUE; /* some overlap */
 }
 
 
+/**
+ * Can we blit from src format to dest format with a simple copy?
+ */
+static boolean
+formats_compatible(enum pipe_format src_format,
+                   enum pipe_format dst_format)
+{
+   if (src_format == dst_format) {
+      return TRUE;
+   }
+   else {
+      const struct util_format_description *src_desc =
+         util_format_description(src_format);
+      const struct util_format_description *dst_desc =
+         util_format_description(dst_format);
+      return util_is_format_compatible(src_desc, dst_desc);
+   }
+}
+
+
 /**
  * Copy pixel block from src surface to dst surface.
  * Overlapping regions are acceptable.
  * Flipping and stretching are supported.
- * \param filter  one of PIPE_TEX_MIPFILTER_NEAREST/LINEAR
- * \param writemask  controls which channels in the dest surface are sourced
- *                   from the src surface.  Disabled channels are sourced
- *                   from (0,0,0,1).
- * XXX need some control over blitting Z and/or stencil.
+ * \param filter  one of PIPE_TEX_FILTER_NEAREST/LINEAR
+ * \param writemask  bitmask of PIPE_MASK_[RGBAZS].  Controls which channels
+ *                   in the dest surface are sourced from the src surface.
+ *                   Disabled color channels are sourced from (0,0,0,1).
  */
 void
-util_blit_pixels_writemask(struct blit_state *ctx,
-                           struct pipe_resource *src_tex,
-                           struct pipe_subresource srcsub,
-                           int srcX0, int srcY0,
-                           int srcX1, int srcY1,
-                           int srcZ0,
-                           struct pipe_surface *dst,
-                           int dstX0, int dstY0,
-                           int dstX1, int dstY1,
-                           float z, uint filter,
-                           uint writemask)
+util_blit_pixels(struct blit_state *ctx,
+                 struct pipe_resource *src_tex,
+                 unsigned src_level,
+                 int srcX0, int srcY0,
+                 int srcX1, int srcY1,
+                 int srcZ0,
+                 struct pipe_surface *dst,
+                 int dstX0, int dstY0,
+                 int dstX1, int dstY1,
+                 MAYBE_UNUSED float z,
+                 enum pipe_tex_filter filter,
+                 uint writemask)
 {
    struct pipe_context *pipe = ctx->pipe;
-   struct pipe_screen *screen = pipe->screen;
-   struct pipe_sampler_view *sampler_view = NULL;
-   struct pipe_sampler_view sv_templ;
-   struct pipe_framebuffer_state fb;
+   enum pipe_format src_format, dst_format;
    const int srcW = abs(srcX1 - srcX0);
    const int srcH = abs(srcY1 - srcY0);
-   unsigned offset;
    boolean overlap;
-   float s0, t0, s1, t1;
+   boolean is_stencil, is_depth, blit_depth, blit_stencil;
+   const struct util_format_description *src_desc =
+         util_format_description(src_tex->format);
+   struct pipe_blit_info info;
 
-   assert(filter == PIPE_TEX_MIPFILTER_NEAREST ||
-          filter == PIPE_TEX_MIPFILTER_LINEAR);
+   assert(filter == PIPE_TEX_FILTER_NEAREST ||
+          filter == PIPE_TEX_FILTER_LINEAR);
 
-   assert(srcsub.level <= src_tex->last_level);
+   assert(src_level <= src_tex->last_level);
 
    /* do the regions overlap? */
    overlap = src_tex == dst->texture &&
-             dst->face == srcsub.face &&
-             dst->level == srcsub.level &&
-             dst->zslice == srcZ0 &&
+             dst->u.tex.level == src_level &&
+             dst->u.tex.first_layer == srcZ0 &&
       regions_overlap(srcX0, srcY0, srcX1, srcY1,
                       dstX0, dstY0, dstX1, dstY1);
 
+   src_format = util_format_linear(src_tex->format);
+   dst_format = util_format_linear(dst->texture->format);
+
+   /* See whether we will blit depth or stencil. */
+   is_depth = util_format_has_depth(src_desc);
+   is_stencil = util_format_has_stencil(src_desc);
+
+   blit_depth = is_depth && (writemask & PIPE_MASK_Z);
+   blit_stencil = is_stencil && (writemask & PIPE_MASK_S);
+
+   if (is_depth || is_stencil) {
+      assert((writemask & PIPE_MASK_RGBA) == 0);
+      assert(blit_depth || blit_stencil);
+   }
+   else {
+      assert((writemask & PIPE_MASK_ZS) == 0);
+      assert(!blit_depth);
+      assert(!blit_stencil);
+   }
+
+   /*
+    * XXX: z parameter is deprecated. dst->u.tex.first_layer
+    * specificies the destination layer.
+    */
+   assert(z == 0.0f);
+
    /*
     * Check for simple case:  no format conversion, no flipping, no stretching,
-    * no overlapping.
+    * no overlapping, same number of samples.
     * Filter mode should not matter since there's no stretching.
     */
-   if (dst->format == src_tex->format &&
+   if (formats_compatible(src_format, dst_format) &&
+       src_tex->nr_samples == dst->texture->nr_samples &&
+       is_stencil == blit_stencil &&
+       is_depth == blit_depth &&
        srcX0 < srcX1 &&
        dstX0 < dstX1 &&
        srcY0 < srcY1 &&
@@ -324,321 +450,169 @@ util_blit_pixels_writemask(struct blit_state *ctx,
        (dstX1 - dstX0) == (srcX1 - srcX0) &&
        (dstY1 - dstY0) == (srcY1 - srcY0) &&
        !overlap) {
-      struct pipe_subresource subdst;
-      subdst.face = dst->face;
-      subdst.level = dst->level;
+      struct pipe_box src_box;
+      src_box.x = srcX0;
+      src_box.y = srcY0;
+      src_box.z = srcZ0;
+      src_box.width = srcW;
+      src_box.height = srcH;
+      src_box.depth = 1;
       pipe->resource_copy_region(pipe,
-                                 dst->texture, subdst,
-                                 dstX0, dstY0, dst->zslice,/* dest */
-                                 src_tex, srcsub,
-                                 srcX0, srcY0, srcZ0,/* src */
-                                 srcW, srcH);       /* size */
+                                 dst->texture, dst->u.tex.level,
+                                 dstX0, dstY0, dst->u.tex.first_layer,/* dest */
+                                 src_tex, src_level,
+                                 &src_box);
       return;
    }
 
-
-   /* Create a temporary texture when src and dest alias or when src
-    * is anything other than a 2d texture.
-    * XXX should just use appropriate shader to access 1d / 3d slice / cube face,
-    * much like the u_blitter code does (should be pretty trivial).
-    * 
-    * This can still be improved upon.
-    */
-   if ((src_tex == dst->texture &&
-       dst->face == srcsub.face &&
-       dst->level == srcsub.level &&
-       dst->zslice == srcZ0) ||
-       src_tex->target != PIPE_TEXTURE_2D)
-   {
-      struct pipe_resource texTemp;
-      struct pipe_resource *tex;
-      struct pipe_sampler_view sv_templ;
-      struct pipe_subresource texsub;
-      const int srcLeft = MIN2(srcX0, srcX1);
-      const int srcTop = MIN2(srcY0, srcY1);
-
-      if (srcLeft != srcX0) {
-         /* left-right flip */
-         int tmp = dstX0;
-         dstX0 = dstX1;
-         dstX1 = tmp;
-      }
-
-      if (srcTop != srcY0) {
-         /* up-down flip */
-         int tmp = dstY0;
-         dstY0 = dstY1;
-         dstY1 = tmp;
-      }
-
-      /* create temp texture */
-      memset(&texTemp, 0, sizeof(texTemp));
-      texTemp.target = PIPE_TEXTURE_2D;
-      texTemp.format = src_tex->format;
-      texTemp.last_level = 0;
-      texTemp.width0 = srcW;
-      texTemp.height0 = srcH;
-      texTemp.depth0 = 1;
-      texTemp.bind = PIPE_BIND_SAMPLER_VIEW;
-
-      tex = screen->resource_create(screen, &texTemp);
-      if (!tex)
-         return;
-
-      texsub.face = 0;
-      texsub.level = 0;
-      /* load temp texture */
-      pipe->resource_copy_region(pipe,
-                                 tex, texsub, 0, 0, 0,  /* dest */
-                                 src_tex, srcsub, srcLeft, srcTop, srcZ0, /* src */
-                                 srcW, srcH);     /* size */
-
-      s0 = 0.0f; 
-      s1 = 1.0f;
-      t0 = 0.0f;
-      t1 = 1.0f;
-
-      u_sampler_view_default_template(&sv_templ, tex, tex->format);
-      sampler_view = pipe->create_sampler_view(pipe, tex, &sv_templ);
-
-      if (!sampler_view) {
-         pipe_resource_reference(&tex, NULL);
-         return;
-      }
-      pipe_resource_reference(&tex, NULL);
-   }
-   else {
-      u_sampler_view_default_template(&sv_templ, src_tex, src_tex->format);
-      sv_templ.first_level = sv_templ.last_level = srcsub.level;
-      sampler_view = pipe->create_sampler_view(pipe, src_tex, &sv_templ);
-
-      if (!sampler_view) {
-         return;
-      }
-
-      s0 = srcX0 / (float)(u_minify(sampler_view->texture->width0, srcsub.level));
-      s1 = srcX1 / (float)(u_minify(sampler_view->texture->width0, srcsub.level));
-      t0 = srcY0 / (float)(u_minify(sampler_view->texture->height0, srcsub.level));
-      t1 = srcY1 / (float)(u_minify(sampler_view->texture->height0, srcsub.level));
-   }
-
-
-   assert(screen->is_format_supported(screen, sampler_view->format, PIPE_TEXTURE_2D,
-                                      sampler_view->texture->nr_samples,
-                                      PIPE_BIND_SAMPLER_VIEW, 0));
-   assert(screen->is_format_supported(screen, dst->format, PIPE_TEXTURE_2D,
-                                      dst->texture->nr_samples,
-                                      PIPE_BIND_RENDER_TARGET, 0));
-
-   /* save state (restored below) */
-   cso_save_blend(ctx->cso);
-   cso_save_depth_stencil_alpha(ctx->cso);
-   cso_save_rasterizer(ctx->cso);
-   cso_save_samplers(ctx->cso);
-   cso_save_fragment_sampler_views(ctx->cso);
-   cso_save_viewport(ctx->cso);
-   cso_save_framebuffer(ctx->cso);
-   cso_save_fragment_shader(ctx->cso);
-   cso_save_vertex_shader(ctx->cso);
-   cso_save_clip(ctx->cso);
-   cso_save_vertex_elements(ctx->cso);
-
-   /* set misc state we care about */
-   cso_set_blend(ctx->cso, &ctx->blend);
-   cso_set_depth_stencil_alpha(ctx->cso, &ctx->depthstencil);
-   cso_set_rasterizer(ctx->cso, &ctx->rasterizer);
-   cso_set_clip(ctx->cso, &ctx->clip);
-   cso_set_vertex_elements(ctx->cso, 2, ctx->velem);
-
-   /* sampler */
-   ctx->sampler.min_img_filter = filter;
-   ctx->sampler.mag_img_filter = filter;
-   /* we've limited this already with the sampler view but you never know... */
-   ctx->sampler.min_lod = srcsub.level;
-   ctx->sampler.max_lod = srcsub.level;
-   cso_single_sampler(ctx->cso, 0, &ctx->sampler);
-   cso_single_sampler_done(ctx->cso);
-
-   /* viewport */
-   ctx->viewport.scale[0] = 0.5f * dst->width;
-   ctx->viewport.scale[1] = 0.5f * dst->height;
-   ctx->viewport.scale[2] = 0.5f;
-   ctx->viewport.scale[3] = 1.0f;
-   ctx->viewport.translate[0] = 0.5f * dst->width;
-   ctx->viewport.translate[1] = 0.5f * dst->height;
-   ctx->viewport.translate[2] = 0.5f;
-   ctx->viewport.translate[3] = 0.0f;
-   cso_set_viewport(ctx->cso, &ctx->viewport);
-
-   /* texture */
-   cso_set_fragment_sampler_views(ctx->cso, 1, &sampler_view);
-
-   if (ctx->fs[writemask] == NULL)
-      ctx->fs[writemask] =
-         util_make_fragment_tex_shader_writemask(pipe, TGSI_TEXTURE_2D,
-                                                 writemask);
-
-   /* shaders */
-   cso_set_fragment_shader_handle(ctx->cso, ctx->fs[writemask]);
-   cso_set_vertex_shader_handle(ctx->cso, ctx->vs);
-
-   /* drawing dest */
-   memset(&fb, 0, sizeof(fb));
-   fb.width = dst->width;
-   fb.height = dst->height;
-   fb.nr_cbufs = 1;
-   fb.cbufs[0] = dst;
-   cso_set_framebuffer(ctx->cso, &fb);
-
-   /* draw quad */
-   offset = setup_vertex_data_tex(ctx,
-                                  (float) dstX0 / dst->width * 2.0f - 1.0f,
-                                  (float) dstY0 / dst->height * 2.0f - 1.0f,
-                                  (float) dstX1 / dst->width * 2.0f - 1.0f,
-                                  (float) dstY1 / dst->height * 2.0f - 1.0f,
-                                  s0, t0,
-                                  s1, t1,
-                                  z);
-
-   util_draw_vertex_buffer(ctx->pipe, ctx->vbuf, offset,
-                           PIPE_PRIM_TRIANGLE_FAN,
-                           4,  /* verts */
-                           2); /* attribs/vert */
-
-   /* restore state we changed */
-   cso_restore_blend(ctx->cso);
-   cso_restore_depth_stencil_alpha(ctx->cso);
-   cso_restore_rasterizer(ctx->cso);
-   cso_restore_samplers(ctx->cso);
-   cso_restore_fragment_sampler_views(ctx->cso);
-   cso_restore_viewport(ctx->cso);
-   cso_restore_framebuffer(ctx->cso);
-   cso_restore_fragment_shader(ctx->cso);
-   cso_restore_vertex_shader(ctx->cso);
-   cso_restore_clip(ctx->cso);
-   cso_restore_vertex_elements(ctx->cso);
-
-   pipe_sampler_view_reference(&sampler_view, NULL);
+   memset(&info, 0, sizeof info);
+   info.dst.resource = dst->texture;
+   info.dst.level = dst->u.tex.level;
+   info.dst.box.x = dstX0;
+   info.dst.box.y = dstY0;
+   info.dst.box.z = dst->u.tex.first_layer;
+   info.dst.box.width = dstX1 - dstX0;
+   info.dst.box.height = dstY1 - dstY0;
+   assert(info.dst.box.width >= 0);
+   assert(info.dst.box.height >= 0);
+   info.dst.box.depth = 1;
+   info.dst.format = dst_format;
+   info.src.resource = src_tex;
+   info.src.level = src_level;
+   info.src.box.x = srcX0;
+   info.src.box.y = srcY0;
+   info.src.box.z = srcZ0;
+   info.src.box.width = srcX1 - srcX0;
+   info.src.box.height = srcY1 - srcY0;
+   info.src.box.depth = 1;
+   info.src.format = src_format;
+   info.mask = writemask;
+   info.filter = filter;
+   info.scissor_enable = 0;
+
+   pipe->blit(pipe, &info);
 }
 
 
-void
-util_blit_pixels(struct blit_state *ctx,
-                 struct pipe_resource *src_tex,
-                 struct pipe_subresource srcsub,
-                 int srcX0, int srcY0,
-                 int srcX1, int srcY1,
-                 int srcZ,
-                 struct pipe_surface *dst,
-                 int dstX0, int dstY0,
-                 int dstX1, int dstY1,
-                 float z, uint filter )
-{
-   util_blit_pixels_writemask( ctx, src_tex,
-                               srcsub,
-                               srcX0, srcY0,
-                               srcX1, srcY1,
-                               srcZ,
-                               dst,
-                               dstX0, dstY0,
-                               dstX1, dstY1,
-                               z, filter,
-                               TGSI_WRITEMASK_XYZW );
-}
-
-
-/* Release vertex buffer at end of frame to avoid synchronous
- * rendering.
- */
-void util_blit_flush( struct blit_state *ctx )
-{
-   pipe_resource_reference(&ctx->vbuf, NULL);
-   ctx->vbuf_slot = 0;
-} 
-
-
-
 /**
- * Copy pixel block from src texture to dst surface.
+ * Copy pixel block from src sampler view to dst surface.
+ *
+ * The sampler view's first_level field indicates the source
+ * mipmap level to use.
+ *
+ * The sampler view's first_layer indicate the layer to use, but for
+ * cube maps it must point to the first face.  Face is passed in src_face.
  *
- * XXX Should support selection of level.
- * XXX need some control over blitting Z and/or stencil.
+ * The main advantage over util_blit_pixels is that it allows to specify
+ * swizzles in pipe_sampler_view::swizzle_?.
+ *
+ * But there is no control over blitting Z and/or stencil.
  */
 void
 util_blit_pixels_tex(struct blit_state *ctx,
                      struct pipe_sampler_view *src_sampler_view,
                      int srcX0, int srcY0,
                      int srcX1, int srcY1,
+                     unsigned src_face,
                      struct pipe_surface *dst,
                      int dstX0, int dstY0,
                      int dstX1, int dstY1,
-                     float z, uint filter)
+                     float z, enum pipe_tex_filter filter,
+                     boolean src_xrbias)
 {
+   boolean normalized = src_sampler_view->texture->target != PIPE_TEXTURE_RECT;
    struct pipe_framebuffer_state fb;
    float s0, t0, s1, t1;
    unsigned offset;
    struct pipe_resource *tex = src_sampler_view->texture;
 
-   assert(filter == PIPE_TEX_MIPFILTER_NEAREST ||
-          filter == PIPE_TEX_MIPFILTER_LINEAR);
+   assert(filter == PIPE_TEX_FILTER_NEAREST ||
+          filter == PIPE_TEX_FILTER_LINEAR);
 
    assert(tex);
    assert(tex->width0 != 0);
    assert(tex->height0 != 0);
 
-   s0 = srcX0 / (float)tex->width0;
-   s1 = srcX1 / (float)tex->width0;
-   t0 = srcY0 / (float)tex->height0;
-   t1 = srcY1 / (float)tex->height0;
+   s0 = (float) srcX0;
+   s1 = (float) srcX1;
+   t0 = (float) srcY0;
+   t1 = (float) srcY1;
+
+   if (normalized) {
+      /* normalize according to the mipmap level's size */
+      int level = src_sampler_view->u.tex.first_level;
+      float w = (float) u_minify(tex->width0, level);
+      float h = (float) u_minify(tex->height0, level);
+      s0 /= w;
+      s1 /= w;
+      t0 /= h;
+      t1 /= h;
+   }
 
    assert(ctx->pipe->screen->is_format_supported(ctx->pipe->screen, dst->format,
                                                  PIPE_TEXTURE_2D,
                                                  dst->texture->nr_samples,
-                                                 PIPE_BIND_RENDER_TARGET,
-                                                 0));
+                                                 dst->texture->nr_storage_samples,
+                                                 PIPE_BIND_RENDER_TARGET));
 
    /* save state (restored below) */
-   cso_save_blend(ctx->cso);
-   cso_save_depth_stencil_alpha(ctx->cso);
-   cso_save_rasterizer(ctx->cso);
-   cso_save_samplers(ctx->cso);
-   cso_save_fragment_sampler_views(ctx->cso);
-   cso_save_framebuffer(ctx->cso);
-   cso_save_fragment_shader(ctx->cso);
-   cso_save_vertex_shader(ctx->cso);
-   cso_save_clip(ctx->cso);
-   cso_save_vertex_elements(ctx->cso);
+   cso_save_state(ctx->cso, (CSO_BIT_BLEND |
+                             CSO_BIT_DEPTH_STENCIL_ALPHA |
+                             CSO_BIT_RASTERIZER |
+                             CSO_BIT_SAMPLE_MASK |
+                             CSO_BIT_MIN_SAMPLES |
+                             CSO_BIT_FRAGMENT_SAMPLERS |
+                             CSO_BIT_FRAGMENT_SAMPLER_VIEWS |
+                             CSO_BIT_STREAM_OUTPUTS |
+                             CSO_BIT_VIEWPORT |
+                             CSO_BIT_FRAMEBUFFER |
+                             CSO_BIT_PAUSE_QUERIES |
+                             CSO_BIT_FRAGMENT_SHADER |
+                             CSO_BIT_VERTEX_SHADER |
+                             CSO_BIT_TESSCTRL_SHADER |
+                             CSO_BIT_TESSEVAL_SHADER |
+                             CSO_BIT_GEOMETRY_SHADER |
+                             CSO_BIT_VERTEX_ELEMENTS |
+                             CSO_BIT_AUX_VERTEX_BUFFER_SLOT));
 
    /* set misc state we care about */
-   cso_set_blend(ctx->cso, &ctx->blend);
-   cso_set_depth_stencil_alpha(ctx->cso, &ctx->depthstencil);
+   cso_set_blend(ctx->cso, &ctx->blend_write_color);
+   cso_set_depth_stencil_alpha(ctx->cso, &ctx->dsa_keep_depthstencil);
+   cso_set_sample_mask(ctx->cso, ~0);
+   cso_set_min_samples(ctx->cso, 1);
    cso_set_rasterizer(ctx->cso, &ctx->rasterizer);
-   cso_set_clip(ctx->cso, &ctx->clip);
    cso_set_vertex_elements(ctx->cso, 2, ctx->velem);
+   cso_set_stream_outputs(ctx->cso, 0, NULL, NULL);
 
    /* sampler */
+   ctx->sampler.normalized_coords = normalized;
    ctx->sampler.min_img_filter = filter;
    ctx->sampler.mag_img_filter = filter;
-   cso_single_sampler(ctx->cso, 0, &ctx->sampler);
-   cso_single_sampler_done(ctx->cso);
+   {
+      const struct pipe_sampler_state *samplers[] = {&ctx->sampler};
+      cso_set_samplers(ctx->cso, PIPE_SHADER_FRAGMENT, 1, samplers);
+   }
 
    /* viewport */
    ctx->viewport.scale[0] = 0.5f * dst->width;
    ctx->viewport.scale[1] = 0.5f * dst->height;
    ctx->viewport.scale[2] = 0.5f;
-   ctx->viewport.scale[3] = 1.0f;
    ctx->viewport.translate[0] = 0.5f * dst->width;
    ctx->viewport.translate[1] = 0.5f * dst->height;
    ctx->viewport.translate[2] = 0.5f;
-   ctx->viewport.translate[3] = 0.0f;
    cso_set_viewport(ctx->cso, &ctx->viewport);
 
    /* texture */
-   cso_set_fragment_sampler_views(ctx->cso, 1, &src_sampler_view);
+   cso_set_sampler_views(ctx->cso, PIPE_SHADER_FRAGMENT, 1, &src_sampler_view);
 
    /* shaders */
-   cso_set_fragment_shader_handle(ctx->cso, ctx->fs[TGSI_WRITEMASK_XYZW]);
-   cso_set_vertex_shader_handle(ctx->cso, ctx->vs);
+   set_fragment_shader(ctx, src_sampler_view->format,
+                       src_xrbias,
+                       src_sampler_view->texture->target);
+   set_vertex_shader(ctx);
+   cso_set_tessctrl_shader_handle(ctx->cso, NULL);
+   cso_set_tesseval_shader_handle(ctx->cso, NULL);
+   cso_set_geometry_shader_handle(ctx->cso, NULL);
 
    /* drawing dest */
    memset(&fb, 0, sizeof(fb));
@@ -650,6 +624,8 @@ util_blit_pixels_tex(struct blit_state *ctx,
 
    /* draw quad */
    offset = setup_vertex_data_tex(ctx,
+                                  src_sampler_view->texture->target,
+                                  src_face,
                                   (float) dstX0 / dst->width * 2.0f - 1.0f,
                                   (float) dstY0 / dst->height * 2.0f - 1.0f,
                                   (float) dstX1 / dst->width * 2.0f - 1.0f,
@@ -657,21 +633,12 @@ util_blit_pixels_tex(struct blit_state *ctx,
                                   s0, t0, s1, t1,
                                   z);
 
-   util_draw_vertex_buffer(ctx->pipe, 
-                           ctx->vbuf, offset,
+   util_draw_vertex_buffer(ctx->pipe, ctx->cso, ctx->vbuf, 0,
+                           offset,
                            PIPE_PRIM_TRIANGLE_FAN,
                            4,  /* verts */
                            2); /* attribs/vert */
 
    /* restore state we changed */
-   cso_restore_blend(ctx->cso);
-   cso_restore_depth_stencil_alpha(ctx->cso);
-   cso_restore_rasterizer(ctx->cso);
-   cso_restore_samplers(ctx->cso);
-   cso_restore_fragment_sampler_views(ctx->cso);
-   cso_restore_framebuffer(ctx->cso);
-   cso_restore_fragment_shader(ctx->cso);
-   cso_restore_vertex_shader(ctx->cso);
-   cso_restore_clip(ctx->cso);
-   cso_restore_vertex_elements(ctx->cso);
+   cso_restore_state(ctx->cso);
 }