Merge branch 'gallium-polygon-stipple'
[mesa.git] / src / gallium / auxiliary / util / u_surface.c
index 9dd1002f5f6e6056e31dcf5ab23447ff90bf83be..8e123867da6ec2c3933793b429e35307aeb53ac9 100644 (file)
 #include "util/u_surface.h"
 #include "util/u_pack_color.h"
 
+void
+u_surface_default_template(struct pipe_surface *view,
+                           const struct pipe_resource *texture,
+                           unsigned bind)
+{
+   view->format = texture->format;
+   view->u.tex.level = 0;
+   view->u.tex.first_layer = 0;
+   view->u.tex.last_layer = 0;
+   /* XXX should filter out all non-rt/ds bind flags ? */
+   view->usage = bind;
+}
 
 /**
  * Helper to quickly create an RGBA rendering surface of a certain size.
@@ -50,9 +62,9 @@
  * \return TRUE for success, FALSE if failure
  */
 boolean
-util_create_rgba_surface(struct pipe_screen *screen,
+util_create_rgba_surface(struct pipe_context *pipe,
                          uint width, uint height,
-                        uint bind,
+                         uint bind,
                          struct pipe_resource **textureOut,
                          struct pipe_surface **surfaceOut)
 {
@@ -65,12 +77,14 @@ util_create_rgba_surface(struct pipe_screen *screen,
    const uint target = PIPE_TEXTURE_2D;
    enum pipe_format format = PIPE_FORMAT_NONE;
    struct pipe_resource templ;
+   struct pipe_surface surf_templ;
+   struct pipe_screen *screen = pipe->screen;
    uint i;
 
    /* Choose surface format */
    for (i = 0; rgbaFormats[i]; i++) {
       if (screen->is_format_supported(screen, rgbaFormats[i],
-                                      target, 0, bind, 0)) {
+                                      target, 0, bind)) {
          format = rgbaFormats[i];
          break;
       }
@@ -86,17 +100,20 @@ util_create_rgba_surface(struct pipe_screen *screen,
    templ.width0 = width;
    templ.height0 = height;
    templ.depth0 = 1;
+   templ.array_size = 1;
    templ.bind = bind;
 
    *textureOut = screen->resource_create(screen, &templ);
    if (!*textureOut)
       return FALSE;
 
+   /* create surface */
+   memset(&surf_templ, 0, sizeof(surf_templ));
+   u_surface_default_template(&surf_templ, *textureOut, bind);
    /* create surface / view into texture */
-   *surfaceOut = screen->get_tex_surface(screen, 
-                                        *textureOut,
-                                        0, 0, 0,
-                                        bind);
+   *surfaceOut = pipe->create_surface(pipe,
+                                      *textureOut,
+                                      &surf_templ);
    if (!*surfaceOut) {
       pipe_resource_reference(textureOut, NULL);
       return FALSE;
@@ -126,19 +143,23 @@ util_destroy_rgba_surface(struct pipe_resource *texture,
 void
 util_resource_copy_region(struct pipe_context *pipe,
                           struct pipe_resource *dst,
-                          struct pipe_subresource subdst,
+                          unsigned dst_level,
                           unsigned dst_x, unsigned dst_y, unsigned dst_z,
                           struct pipe_resource *src,
-                          struct pipe_subresource subsrc,
-                          unsigned src_x, unsigned src_y, unsigned src_z,
-                          unsigned w, unsigned h)
+                          unsigned src_level,
+                          const struct pipe_box *src_box)
 {
    struct pipe_transfer *src_trans, *dst_trans;
    void *dst_map;
    const void *src_map;
    enum pipe_format src_format, dst_format;
+   unsigned w = src_box->width;
+   unsigned h = src_box->height;
 
    assert(src && dst);
+   assert((src->target == PIPE_BUFFER && dst->target == PIPE_BUFFER) ||
+          (src->target != PIPE_BUFFER && dst->target != PIPE_BUFFER));
+
    if (!src || !dst)
       return;
 
@@ -146,20 +167,18 @@ util_resource_copy_region(struct pipe_context *pipe,
    dst_format = dst->format;
 
    src_trans = pipe_get_transfer(pipe,
-                                src,
-                                subsrc.face,
-                                subsrc.level,
-                                src_z,
-                                PIPE_TRANSFER_READ,
-                                src_x, src_y, w, h);
+                                 src,
+                                 src_level,
+                                 src_box->z,
+                                 PIPE_TRANSFER_READ,
+                                 src_box->x, src_box->y, w, h);
 
    dst_trans = pipe_get_transfer(pipe,
-                                dst,
-                                subdst.face,
-                                subdst.level,
-                                src_z,
-                                PIPE_TRANSFER_WRITE,
-                                dst_x, dst_y, w, h);
+                                 dst,
+                                 dst_level,
+                                 dst_z,
+                                 PIPE_TRANSFER_WRITE,
+                                 dst_x, dst_y, w, h);
 
    assert(util_format_get_blocksize(dst_format) == util_format_get_blocksize(src_format));
    assert(util_format_get_blockwidth(dst_format) == util_format_get_blockwidth(src_format));
@@ -172,15 +191,19 @@ util_resource_copy_region(struct pipe_context *pipe,
    assert(dst_map);
 
    if (src_map && dst_map) {
-      util_copy_rect(dst_map,
-                     dst_format,
-                     dst_trans->stride,
-                     0, 0,
-                     w, h,
-                     src_map,
-                     src_trans->stride,
-                     0,
-                     0);
+      if (dst->target == PIPE_BUFFER && src->target == PIPE_BUFFER) {
+         memcpy(dst_map, src_map, w);
+      } else {
+         util_copy_rect(dst_map,
+                        dst_format,
+                        dst_trans->stride,
+                        0, 0,
+                        w, h,
+                        src_map,
+                        src_trans->stride,
+                        0,
+                        0);
+      }
    }
 
    pipe->transfer_unmap(pipe, src_trans);
@@ -199,7 +222,6 @@ util_resource_copy_region(struct pipe_context *pipe,
  * Fallback for pipe->clear_render_target() function.
  * XXX this looks too hackish to be really useful.
  * cpp > 4 looks like a gross hack at best...
- * and we're missing the equivalent clear_depth_stencil fallback.
  * Plus can't use these transfer fallbacks when clearing
  * multisampled surfaces for instance.
  */
@@ -217,58 +239,160 @@ util_clear_render_target(struct pipe_context *pipe,
    assert(dst->texture);
    if (!dst->texture)
       return;
-   util_pack_color(rgba, dst->texture->format, &uc);
+   /* XXX: should handle multiple layers */
+   dst_trans = pipe_get_transfer(pipe,
+                                 dst->texture,
+                                 dst->u.tex.level,
+                                 dst->u.tex.first_layer,
+                                 PIPE_TRANSFER_WRITE,
+                                 dstx, dsty, width, height);
+
+   dst_map = pipe->transfer_map(pipe, dst_trans);
+
+   assert(dst_map);
+
+   if (dst_map) {
+      assert(dst_trans->stride > 0);
+
+      util_pack_color(rgba, dst->texture->format, &uc);
+      util_fill_rect(dst_map, dst->texture->format,
+                     dst_trans->stride,
+                     0, 0, width, height, &uc);
+   }
+
+   pipe->transfer_unmap(pipe, dst_trans);
+   pipe->transfer_destroy(pipe, dst_trans);
+}
+
+/**
+ * Fallback for pipe->clear_stencil() function.
+ * sw fallback doesn't look terribly useful here.
+ * Plus can't use these transfer fallbacks when clearing
+ * multisampled surfaces for instance.
+ */
+void
+util_clear_depth_stencil(struct pipe_context *pipe,
+                         struct pipe_surface *dst,
+                         unsigned clear_flags,
+                         double depth,
+                         unsigned stencil,
+                         unsigned dstx, unsigned dsty,
+                         unsigned width, unsigned height)
+{
+   struct pipe_transfer *dst_trans;
+   ubyte *dst_map;
+   boolean need_rmw = FALSE;
+
+   if ((clear_flags & PIPE_CLEAR_DEPTHSTENCIL) &&
+       ((clear_flags & PIPE_CLEAR_DEPTHSTENCIL) != PIPE_CLEAR_DEPTHSTENCIL) &&
+       util_format_is_depth_and_stencil(dst->format))
+      need_rmw = TRUE;
+
+   assert(dst->texture);
+   if (!dst->texture)
+      return;
    dst_trans = pipe_get_transfer(pipe,
-                                dst->texture,
-                                dst->face,
-                                dst->level,
-                                dst->zslice,
-                                PIPE_TRANSFER_WRITE,
-                                dstx, dsty, width, height);
+                                 dst->texture,
+                                 dst->u.tex.level,
+                                 dst->u.tex.first_layer,
+                                 (need_rmw ? PIPE_TRANSFER_READ_WRITE :
+                                     PIPE_TRANSFER_WRITE),
+                                 dstx, dsty, width, height);
 
    dst_map = pipe->transfer_map(pipe, dst_trans);
 
    assert(dst_map);
 
    if (dst_map) {
+      unsigned dst_stride = dst_trans->stride;
+      unsigned zstencil = util_pack_z_stencil(dst->texture->format, depth, stencil);
+      unsigned i, j;
       assert(dst_trans->stride > 0);
 
-      switch (util_format_get_blocksize(dst->texture->format)) {
+      switch (util_format_get_blocksize(dst->format)) {
       case 1:
+         assert(dst->format == PIPE_FORMAT_S8_USCALED);
+         if(dst_stride == width)
+            memset(dst_map, (ubyte) zstencil, height * width);
+         else {
+            for (i = 0; i < height; i++) {
+               memset(dst_map, (ubyte) zstencil, width);
+               dst_map += dst_stride;
+            }
+         }
+         break;
       case 2:
+         assert(dst->format == PIPE_FORMAT_Z16_UNORM);
+         for (i = 0; i < height; i++) {
+            uint16_t *row = (uint16_t *)dst_map;
+            for (j = 0; j < width; j++)
+               *row++ = (uint16_t) zstencil;
+            dst_map += dst_stride;
+            }
+         break;
       case 4:
-         util_pack_color(rgba, dst->texture->format, &uc);
-         util_fill_rect(dst_map, dst->texture->format,
-                        dst_trans->stride,
-                        0, 0, width, height, uc.ui);
+         if (!need_rmw) {
+            for (i = 0; i < height; i++) {
+               uint32_t *row = (uint32_t *)dst_map;
+               for (j = 0; j < width; j++)
+                  *row++ = zstencil;
+               dst_map += dst_stride;
+            }
+         }
+         else {
+            uint32_t dst_mask;
+            if (dst->format == PIPE_FORMAT_Z24_UNORM_S8_USCALED)
+               dst_mask = 0xffffff00;
+            else {
+               assert(dst->format == PIPE_FORMAT_S8_USCALED_Z24_UNORM);
+               dst_mask = 0xffffff;
+            }
+            if (clear_flags & PIPE_CLEAR_DEPTH)
+               dst_mask = ~dst_mask;
+            for (i = 0; i < height; i++) {
+               uint32_t *row = (uint32_t *)dst_map;
+               for (j = 0; j < width; j++) {
+                  uint32_t tmp = *row & dst_mask;
+                  *row++ = tmp | (zstencil & ~dst_mask);
+               }
+               dst_map += dst_stride;
+            }
+         }
          break;
       case 8:
       {
-        /* expand the 4-byte clear value to an 8-byte value */
-        /* should probably not convert back from ubyte but not
-           sure what this code really achieved since it doesn't even
-           check for format type... */
-        ushort *row = (ushort *) dst_map;
-        ushort val0 = UBYTE_TO_USHORT((uc.ui >>  0) & 0xff);
-        ushort val1 = UBYTE_TO_USHORT((uc.ui >>  8) & 0xff);
-        ushort val2 = UBYTE_TO_USHORT((uc.ui >> 16) & 0xff);
-        ushort val3 = UBYTE_TO_USHORT((uc.ui >> 24) & 0xff);
-        unsigned i, j;
-        val0 = (val0 << 8) | val0;
-        val1 = (val1 << 8) | val1;
-        val2 = (val2 << 8) | val2;
-        val3 = (val3 << 8) | val3;
-        for (i = 0; i < height; i++) {
-           for (j = 0; j < width; j++) {
-              row[j*4+0] = val0;
-              row[j*4+1] = val1;
-              row[j*4+2] = val2;
-              row[j*4+3] = val3;
-           }
-           row += dst_trans->stride/2;
-        }
+         uint64_t zstencil = util_pack64_z_stencil(dst->texture->format,
+                                                   depth, stencil);
+
+         assert(dst->format == PIPE_FORMAT_Z32_FLOAT_S8X24_USCALED);
+
+         if (!need_rmw) {
+            for (i = 0; i < height; i++) {
+               uint64_t *row = (uint64_t *)dst_map;
+               for (j = 0; j < width; j++)
+                  *row++ = zstencil;
+               dst_map += dst_stride;
+            }
+         }
+         else {
+            uint64_t src_mask;
+
+            if (clear_flags & PIPE_CLEAR_DEPTH)
+               src_mask = 0x00000000ffffffffull;
+            else
+               src_mask = 0x000000ff00000000ull;
+
+            for (i = 0; i < height; i++) {
+               uint64_t *row = (uint64_t *)dst_map;
+               for (j = 0; j < width; j++) {
+                  uint64_t tmp = *row & ~src_mask;
+                  *row++ = tmp | (zstencil & src_mask);
+               }
+               dst_map += dst_stride;
+            }
+         }
+         break;
       }
-      break;
       default:
          assert(0);
          break;