i965g: more files compiling

1 files changed, 387 insertions, 0 deletions

diff --git a/src/gallium/drivers/i965/brw_screen_tex_layout.c b/src/gallium/drivers/i965/brw_screen_tex_layout.c
new file mode 100644
index 0000000000..8377d30564
--- /dev/null
+++ b/src/gallium/drivers/i965/brw_screen_tex_layout.c
@@ -0,0 +1,387 @@
+
+#include "pipe/p_format.h"
+
+#include "util/u_math.h"
+#include "util/u_memory.h"
+
+#include "brw_screen.h"
+#include "brw_debug.h"
+
+static int 
+brw_tex_pitch_align (struct brw_texture *tex,
+		     int pitch)
+{
+   if (!tex->compressed) {
+      int pitch_align;
+
+      switch (tex->tiling) {
+      case BRW_TILING_X:
+	 pitch_align = 512;
+	 break;
+      case BRW_TILING_Y:
+	 pitch_align = 128;
+	 break;
+      default:
+	 /* XXX: Untiled pitch alignment of 64 bytes for now to allow
+	  * render-to-texture to work in all cases. This should
+	  * probably be replaced at some point by some scheme to only
+	  * do this when really necessary, for example standalone
+	  * render target views.
+	  */
+	 pitch_align = 64;
+	 break;
+      }
+
+      pitch = align(pitch * tex->cpp, pitch_align);
+      pitch /= tex->cpp;
+   }
+
+   return pitch;
+}
+
+
+static void 
+brw_tex_alignment_unit(enum pipe_format pf, 
+		       GLuint *w, GLuint *h)
+{
+    switch (pf) {
+    case PIPE_FORMAT_DXT1_RGB:
+    case PIPE_FORMAT_DXT1_RGBA:
+    case PIPE_FORMAT_DXT3_RGBA:
+    case PIPE_FORMAT_DXT5_RGBA:
+    case PIPE_FORMAT_DXT1_SRGB:
+    case PIPE_FORMAT_DXT1_SRGBA:
+    case PIPE_FORMAT_DXT3_SRGBA:
+    case PIPE_FORMAT_DXT5_SRGBA:
+        *w = 4;
+        *h = 4;
+        break;
+
+    default:
+        *w = 4;
+        *h = 2;
+        break;
+    }
+}
+
+
+static void 
+brw_tex_set_level_info(struct brw_texture *tex,
+		       GLuint level,
+		       GLuint nr_images,
+		       GLuint x, GLuint y,
+		       GLuint w, GLuint h, GLuint d)
+{
+   assert(tex->base.width[level] == w);
+   assert(tex->base.height[level] == h);
+   assert(tex->base.depth[level] == d);
+   assert(tex->image_offset[level] == NULL);
+   assert(nr_images >= 1);
+
+   if (BRW_DEBUG & DEBUG_TEXTURE)
+      debug_printf("%s level %d size: %d,%d,%d offset %d,%d (0x%x)\n", __FUNCTION__,
+		   level, w, h, d, x, y, tex->level_offset[level]);
+
+
+   tex->level_offset[level] = (x + y * tex->pitch) * tex->cpp;
+   tex->nr_images[level] = nr_images;
+
+   tex->image_offset[level] = MALLOC(nr_images * sizeof(GLuint));
+   tex->image_offset[level][0] = 0;
+}
+
+
+static void
+brw_tex_set_image_offset(struct brw_texture *tex,
+			 GLuint level, GLuint img,
+			 GLuint x, GLuint y, 
+			 GLuint offset)
+{
+   assert((x == 0 && y == 0) || img != 0 || level != 0);
+   assert(img < tex->nr_images[level]);
+
+   if (BRW_DEBUG & DEBUG_TEXTURE)
+      debug_printf("%s level %d img %d pos %d,%d image_offset %x\n",
+		   __FUNCTION__, level, img, x, y, 
+		   tex->image_offset[level][img]);
+
+   tex->image_offset[level][img] = (x + y * tex->pitch) * tex->cpp + offset;
+}
+
+
+
+static void brw_layout_2d( struct brw_texture *tex )
+{
+   GLuint align_h = 2, align_w = 4;
+   GLuint level;
+   GLuint x = 0;
+   GLuint y = 0;
+   GLuint width = tex->base.width[0];
+   GLuint height = tex->base.height[0];
+
+   tex->pitch = tex->base.width[0];
+   brw_tex_alignment_unit(tex->base.format, &align_w, &align_h);
+
+   if (tex->compressed) {
+       tex->pitch = align(tex->base.width[0], align_w);
+   }
+
+   /* May need to adjust pitch to accomodate the placement of
+    * the 2nd mipmap.  This occurs when the alignment
+    * constraints of mipmap placement push the right edge of the
+    * 2nd mipmap out past the width of its parent.
+    */
+   if (tex->base.last_level > 0) {
+       GLuint mip1_width;
+
+       if (tex->compressed) {
+           mip1_width = align(minify(tex->base.width[0]), align_w)
+               + align(minify(minify(tex->base.width[0])), align_w);
+       } else {
+           mip1_width = align(minify(tex->base.width[0]), align_w)
+               + minify(minify(tex->base.width[0]));
+       }
+
+       if (mip1_width > tex->pitch) {
+           tex->pitch = mip1_width;
+       }
+   }
+
+   /* Pitch must be a whole number of dwords, even though we
+    * express it in texels.
+    */
+   tex->pitch = brw_tex_pitch_align (tex, tex->pitch);
+   tex->total_height = 0;
+
+   for ( level = 0 ; level <= tex->base.last_level ; level++ ) {
+      GLuint img_height;
+
+      brw_tex_set_level_info(tex, level, 1, x, y, width, height, 1);
+
+      if (tex->compressed)
+	 img_height = MAX2(1, height/4);
+      else
+	 img_height = align(height, align_h);
+
+
+      /* Because the images are packed better, the final offset
+       * might not be the maximal one:
+       */
+      tex->total_height = MAX2(tex->total_height, y + img_height);
+
+      /* Layout_below: step right after second mipmap.
+       */
+      if (level == 1) {
+	 x += align(width, align_w);
+      }
+      else {
+	 y += img_height;
+      }
+
+      width  = minify(width);
+      height = minify(height);
+   }
+}
+
+
+static boolean 
+brw_layout_cubemap_idgng( struct brw_texture *tex )
+{
+   GLuint align_h = 2, align_w = 4;
+   GLuint level;
+   GLuint x = 0;
+   GLuint y = 0;
+   GLuint width = tex->base.width[0];
+   GLuint height = tex->base.height[0];
+   GLuint qpitch = 0;
+   GLuint y_pitch = 0;
+
+   tex->pitch = tex->base.width[0];
+   brw_tex_alignment_unit(tex->base.format, &align_w, &align_h);
+   y_pitch = align(height, align_h);
+
+   if (tex->compressed) {
+      tex->pitch = align(tex->base.width[0], align_w);
+   }
+
+   if (tex->base.last_level != 0) {
+      GLuint mip1_width;
+
+      if (tex->compressed) {
+	 mip1_width = (align(minify(tex->base.width[0]), align_w) +
+		       align(minify(minify(tex->base.width[0])), align_w));
+      } else {
+	 mip1_width = (align(minify(tex->base.width[0]), align_w) +
+		       minify(minify(tex->base.width[0])));
+      }
+
+      if (mip1_width > tex->pitch) {
+	 tex->pitch = mip1_width;
+      }
+   }
+
+   tex->pitch = brw_tex_pitch_align(tex, tex->pitch);
+
+   if (tex->compressed) {
+      qpitch = ((y_pitch + 
+		 align(minify(y_pitch), align_h) +
+		 11 * align_h) / 4) * tex->pitch * tex->cpp;
+
+      tex->total_height = ((y_pitch + 
+			    align(minify(y_pitch), align_h) + 
+			    11 * align_h) / 4) * 6;
+   } else {
+      qpitch = (y_pitch + 
+		align(minify(y_pitch), align_h) + 
+		11 * align_h) * tex->pitch * tex->cpp;
+
+      tex->total_height = (y_pitch +
+			   align(minify(y_pitch), align_h) +
+			   11 * align_h) * 6;
+   }
+
+   for (level = 0; level <= tex->base.last_level; level++) {
+      GLuint img_height;
+      GLuint nr_images = 6;
+      GLuint q = 0;
+
+      brw_tex_set_level_info(tex, level, nr_images, x, y, width, height, 1);
+
+      for (q = 0; q < nr_images; q++)
+	 brw_tex_set_image_offset(tex, level, q, x, y, q * qpitch);
+
+      if (tex->compressed)
+	 img_height = MAX2(1, height/4);
+      else
+	 img_height = align(height, align_h);
+
+      if (level == 1) {
+	 x += align(width, align_w);
+      }
+      else {
+	 y += img_height;
+      }
+
+      width  = minify(width);
+      height = minify(height);
+   }
+
+   return TRUE;
+}
+
+
+static boolean
+brw_layout_3d_cube( struct brw_texture *tex )
+{
+   GLuint width  = tex->base.width[0];
+   GLuint height = tex->base.height[0];
+   GLuint depth = tex->base.depth[0];
+   GLuint pack_x_pitch, pack_x_nr;
+   GLuint pack_y_pitch;
+   GLuint level;
+   GLuint align_h = 2;
+   GLuint align_w = 4;
+
+   tex->total_height = 0;
+   brw_tex_alignment_unit(tex->base.format, &align_w, &align_h);
+
+   if (tex->compressed) {
+      tex->pitch = align(width, align_w);
+      pack_y_pitch = (height + 3) / 4;
+   } else {
+      tex->pitch = brw_tex_pitch_align(tex, tex->base.width[0]);
+      pack_y_pitch = align(tex->base.height[0], align_h);
+   }
+
+   pack_x_pitch = width;
+   pack_x_nr = 1;
+
+   for (level = 0 ; level <= tex->base.last_level ; level++) {
+      GLuint nr_images = tex->base.target == PIPE_TEXTURE_3D ? depth : 6;
+      GLint x = 0;
+      GLint y = 0;
+      GLint q, j;
+
+      brw_tex_set_level_info(tex, level, nr_images,
+				   0, tex->total_height,
+				   width, height, depth);
+
+      for (q = 0; q < nr_images;) {
+	 for (j = 0; j < pack_x_nr && q < nr_images; j++, q++) {
+	    brw_tex_set_image_offset(tex, level, q, x, y, 0);
+	    x += pack_x_pitch;
+	 }
+
+	 x = 0;
+	 y += pack_y_pitch;
+      }
+
+
+      tex->total_height += y;
+      width  = minify(width);
+      height = minify(height);
+      depth  = minify(depth);
+
+      if (tex->compressed) {
+	 pack_y_pitch = (height + 3) / 4;
+
+	 if (pack_x_pitch > align(width, align_w)) {
+	    pack_x_pitch = align(width, align_w);
+	    pack_x_nr <<= 1;
+	 }
+      } else {
+	 if (pack_x_pitch > 4) {
+	    pack_x_pitch >>= 1;
+	    pack_x_nr <<= 1;
+	    assert(pack_x_pitch * pack_x_nr <= tex->pitch);
+	 }
+
+	 if (pack_y_pitch > 2) {
+	    pack_y_pitch >>= 1;
+	    pack_y_pitch = align(pack_y_pitch, align_h);
+	 }
+      }
+   }
+
+   /* The 965's sampler lays cachelines out according to how accesses
+    * in the texture surfaces run, so they may be "vertical" through
+    * memory.  As a result, the docs say in Surface Padding Requirements:
+    * Sampling Engine Surfaces that two extra rows of padding are required.
+    */
+   if (tex->base.target == PIPE_TEXTURE_CUBE)
+      tex->total_height += 2;
+
+   return TRUE;
+}
+
+
+
+GLboolean brw_texture_layout(struct brw_screen *brw_screen,
+			     struct brw_texture *tex )
+{
+   switch (tex->base.target) {
+   case PIPE_TEXTURE_CUBE:
+      if (brw_screen->chipset.is_igdng)
+	 brw_layout_cubemap_idgng( tex );
+      else
+	 brw_layout_3d_cube( tex );
+      break;
+	    
+   case PIPE_TEXTURE_3D:
+      brw_layout_3d_cube( tex );
+      break;
+
+   default:
+      brw_layout_2d( tex );
+      break;
+   }
+
+   if (BRW_DEBUG & DEBUG_TEXTURE)
+      debug_printf("%s: %dx%dx%d - sz 0x%x\n", __FUNCTION__,
+		   tex->pitch,
+		   tex->total_height,
+		   tex->cpp,
+		   tex->pitch * tex->total_height * tex->cpp );
+
+   return GL_TRUE;
+}