OpenVG 1.0 State Tracker

Import of the OpenVG 1.0 state tracker for Gallium.

1 files changed, 654 insertions, 0 deletions

diff --git a/src/gallium/state_trackers/vega/image.c b/src/gallium/state_trackers/vega/image.c
new file mode 100644
index 0000000000..9a722980d5
--- /dev/null
+++ b/src/gallium/state_trackers/vega/image.c
@@ -0,0 +1,654 @@
+/**************************************************************************
+ *
+ * Copyright 2009 VMware, Inc.  All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * 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 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.
+ *
+ **************************************************************************/
+
+#include "image.h"
+
+#include "vg_translate.h"
+#include "vg_context.h"
+#include "matrix.h"
+#include "renderer.h"
+#include "util_array.h"
+#include "api_consts.h"
+#include "shaders_cache.h"
+#include "shader.h"
+
+#include "pipe/p_context.h"
+#include "pipe/p_screen.h"
+#include "pipe/p_inlines.h"
+#include "util/u_blit.h"
+#include "util/u_tile.h"
+#include "util/u_memory.h"
+#include "util/u_math.h"
+
+static enum pipe_format vg_format_to_pipe(VGImageFormat format)
+{
+   switch(format) {
+   case VG_sRGB_565:
+      return PIPE_FORMAT_R5G6B5_UNORM;
+   case VG_sRGBA_5551:
+      return PIPE_FORMAT_A1R5G5B5_UNORM;
+   case VG_sRGBA_4444:
+      return PIPE_FORMAT_A4R4G4B4_UNORM;
+   case VG_sL_8:
+   case VG_lL_8:
+      return PIPE_FORMAT_L8_UNORM;
+   case VG_BW_1:
+      return PIPE_FORMAT_A8R8G8B8_UNORM;
+   case VG_A_8:
+      return PIPE_FORMAT_A8_UNORM;
+#ifdef OPENVG_VERSION_1_1
+   case VG_A_1:
+   case VG_A_4:
+      return PIPE_FORMAT_A8_UNORM;
+#endif
+   default:
+      return PIPE_FORMAT_A8R8G8B8_UNORM;
+   }
+}
+
+static INLINE void vg_sync_size(VGfloat *src_loc, VGfloat *dst_loc)
+{
+   src_loc[2] = MIN2(src_loc[2], dst_loc[2]);
+   src_loc[3] = MIN2(src_loc[3], dst_loc[3]);
+   dst_loc[2] = src_loc[2];
+   dst_loc[3] = src_loc[3];
+}
+
+
+static void vg_copy_texture(struct vg_context *ctx,
+                            struct pipe_texture *dst, VGint dx, VGint dy,
+                            struct pipe_texture *src, VGint sx, VGint sy,
+                            VGint width, VGint height)
+{
+   VGfloat dst_loc[4], src_loc[4];
+   VGfloat dst_bounds[4], src_bounds[4];
+   VGfloat src_shift[4], dst_shift[4], shift[4];
+
+   dst_loc[0] = dx;
+   dst_loc[1] = dy;
+   dst_loc[2] = width;
+   dst_loc[3] = height;
+   dst_bounds[0] = 0.f;
+   dst_bounds[1] = 0.f;
+   dst_bounds[2] = dst->width[0];
+   dst_bounds[3] = dst->height[0];
+
+   src_loc[0] = sx;
+   src_loc[1] = sy;
+   src_loc[2] = width;
+   src_loc[3] = height;
+   src_bounds[0] = 0.f;
+   src_bounds[1] = 0.f;
+   src_bounds[2] = src->width[0];
+   src_bounds[3] = src->height[0];
+
+   vg_bound_rect(src_loc, src_bounds, src_shift);
+   vg_bound_rect(dst_loc, dst_bounds, dst_shift);
+   shift[0] = src_shift[0] - dst_shift[0];
+   shift[1] = src_shift[1] - dst_shift[1];
+
+   if (shift[0] < 0)
+      vg_shift_rectx(src_loc, src_bounds, -shift[0]);
+   else
+      vg_shift_rectx(dst_loc, dst_bounds, shift[0]);
+
+   if (shift[1] < 0)
+      vg_shift_recty(src_loc, src_bounds, -shift[1]);
+   else
+      vg_shift_recty(dst_loc, dst_bounds, shift[1]);
+
+   vg_sync_size(src_loc, dst_loc);
+
+   if (src_loc[2] >= 0 && src_loc[3] >= 0 &&
+       dst_loc[2] >= 0 && dst_loc[3] >= 0) {
+      renderer_copy_texture(ctx->renderer,
+                            src,
+                            src_loc[0],
+                            src_loc[1] + src_loc[3],
+                            src_loc[0] + src_loc[2],
+                            src_loc[1],
+                            dst,
+                            dst_loc[0],
+                            dst_loc[1] + dst_loc[3],
+                            dst_loc[0] + dst_loc[2],
+                            dst_loc[1]);
+   }
+
+}
+
+void vg_copy_surface(struct vg_context *ctx,
+                     struct pipe_surface *dst, VGint dx, VGint dy,
+                     struct pipe_surface *src, VGint sx, VGint sy,
+                     VGint width, VGint height)
+{
+   VGfloat dst_loc[4], src_loc[4];
+   VGfloat dst_bounds[4], src_bounds[4];
+   VGfloat src_shift[4], dst_shift[4], shift[4];
+
+   dst_loc[0] = dx;
+   dst_loc[1] = dy;
+   dst_loc[2] = width;
+   dst_loc[3] = height;
+   dst_bounds[0] = 0.f;
+   dst_bounds[1] = 0.f;
+   dst_bounds[2] = dst->width;
+   dst_bounds[3] = dst->height;
+
+   src_loc[0] = sx;
+   src_loc[1] = sy;
+   src_loc[2] = width;
+   src_loc[3] = height;
+   src_bounds[0] = 0.f;
+   src_bounds[1] = 0.f;
+   src_bounds[2] = src->width;
+   src_bounds[3] = src->height;
+
+   vg_bound_rect(src_loc, src_bounds, src_shift);
+   vg_bound_rect(dst_loc, dst_bounds, dst_shift);
+   shift[0] = src_shift[0] - dst_shift[0];
+   shift[1] = src_shift[1] - dst_shift[1];
+
+   if (shift[0] < 0)
+      vg_shift_rectx(src_loc, src_bounds, -shift[0]);
+   else
+      vg_shift_rectx(dst_loc, dst_bounds, shift[0]);
+
+   if (shift[1] < 0)
+      vg_shift_recty(src_loc, src_bounds, -shift[1]);
+   else
+      vg_shift_recty(dst_loc, dst_bounds, shift[1]);
+
+   vg_sync_size(src_loc, dst_loc);
+
+   if (src_loc[2] > 0 && src_loc[3] > 0 &&
+       dst_loc[2] > 0 && dst_loc[3] > 0) {
+      if (src == dst)
+         renderer_copy_surface(ctx->renderer,
+                               src,
+                               src_loc[0],
+                               src->height - (src_loc[1] + src_loc[3]),
+                               src_loc[0] + src_loc[2],
+                               src->height - src_loc[1],
+                               dst,
+                               dst_loc[0],
+                               dst->height - (dst_loc[1] + dst_loc[3]),
+                               dst_loc[0] + dst_loc[2],
+                               dst->height - dst_loc[1],
+                               0, 0);
+      else
+         renderer_copy_surface(ctx->renderer,
+                               src,
+                               src_loc[0],
+                               src->height - src_loc[1],
+                               src_loc[0] + src_loc[2],
+                               src->height - (src_loc[1] + src_loc[3]),
+                               dst,
+                               dst_loc[0],
+                               dst->height - (dst_loc[1] + dst_loc[3]),
+                               dst_loc[0] + dst_loc[2],
+                               dst->height - dst_loc[1],
+                               0, 0);
+   }
+
+}
+
+static struct pipe_texture *image_texture(struct vg_image *img)
+{
+   struct pipe_texture *tex = img->texture;
+   return tex;
+}
+
+
+static void image_cleari(struct vg_image *img, VGint clear_colori,
+                         VGint x, VGint y, VGint width, VGint height)
+{
+   VGint *clearbuf;
+   VGint i;
+   VGfloat dwidth, dheight;
+
+   clearbuf = malloc(sizeof(VGint)*width*height);
+   for (i = 0; i < width*height; ++i)
+      clearbuf[i] = clear_colori;
+
+   dwidth = MIN2(width, img->width);
+   dheight = MIN2(height, img->height);
+
+   image_sub_data(img, clearbuf, width * sizeof(VGint),
+                  VG_sRGBA_8888,
+                  x, y, dwidth, dheight);
+   free(clearbuf);
+}
+
+struct vg_image * image_create(VGImageFormat format,
+                               VGint width, VGint height)
+{
+   struct vg_context *ctx = vg_current_context();
+   struct vg_image *image = CALLOC_STRUCT(vg_image);
+   enum pipe_format pformat = vg_format_to_pipe(format);
+   struct pipe_texture pt, *newtex;
+   struct pipe_screen *screen = ctx->pipe->screen;
+
+   vg_init_object(&image->base, ctx, VG_OBJECT_IMAGE);
+
+   image->format = format;
+   image->width = width;
+   image->height = height;
+
+   image->sampler.wrap_s = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
+   image->sampler.wrap_t = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
+   image->sampler.wrap_r = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
+   image->sampler.min_img_filter = PIPE_TEX_MIPFILTER_NEAREST;
+   image->sampler.mag_img_filter = PIPE_TEX_MIPFILTER_NEAREST;
+   image->sampler.normalized_coords = 1;
+
+   assert(screen->is_format_supported(screen, pformat, PIPE_TEXTURE_2D,
+                                      PIPE_TEXTURE_USAGE_SAMPLER, 0));
+
+   memset(&pt, 0, sizeof(pt));
+   pt.target = PIPE_TEXTURE_2D;
+   pt.format = pformat;
+   pf_get_block(pformat, &pt.block);
+   pt.last_level = 0;
+   pt.width[0] = width;
+   pt.height[0] = height;
+   pt.depth[0] = 1;
+   pt.tex_usage = PIPE_TEXTURE_USAGE_SAMPLER;
+
+   newtex = screen->texture_create(screen, &pt);
+
+   debug_assert(newtex);
+
+   image->texture = newtex;
+
+   vg_context_add_object(ctx, VG_OBJECT_IMAGE, image);
+
+   image_cleari(image, 0, 0, 0, image->width, image->height);
+   return image;
+}
+
+void image_destroy(struct vg_image *img)
+{
+   struct vg_context *ctx = vg_current_context();
+   vg_context_remove_object(ctx, VG_OBJECT_IMAGE, img);
+
+
+   if (img->parent) {
+      /* remove img from the parent child array */
+      int idx;
+      struct vg_image **array =
+         (struct vg_image **)img->parent->children_array->data;
+
+      for (idx = 0; idx < img->parent->children_array->num_elements; ++idx) {
+         struct vg_image *child = array[idx];
+         if (child == img) {
+            break;
+         }
+      }
+      debug_assert(idx < img->parent->children_array->num_elements);
+      array_remove_element(img->parent->children_array, idx);
+   }
+
+   if (img->children_array && img->children_array->num_elements) {
+      /* reparent the children */
+      VGint i;
+      struct vg_image *parent = img->parent;
+      struct vg_image **children =
+         (struct vg_image **)img->children_array->data;
+      if (!parent) {
+         VGint min_x = children[0]->x;
+         parent = children[0];
+
+         for (i = 1; i < img->children_array->num_elements; ++i) {
+            struct vg_image *child = children[i];
+            if (child->x < min_x) {
+               parent = child;
+            }
+         }
+      }
+
+      for (i = 0; i < img->children_array->num_elements; ++i) {
+         struct vg_image *child = children[i];
+         if (child != parent) {
+            child->parent = parent;
+            if (!parent->children_array) {
+               parent->children_array = array_create(
+                  sizeof(struct vg_image*));
+            }
+            array_append_data(parent->children_array,
+                              &child, 1);
+         } else
+            child->parent = NULL;
+      }
+      array_destroy(img->children_array);
+   }
+
+   pipe_texture_reference(&img->texture, NULL);
+   free(img);
+}
+
+void image_clear(struct vg_image *img,
+                 VGint x, VGint y, VGint width, VGint height)
+{
+   struct vg_context *ctx = vg_current_context();
+   VGfloat *clear_colorf = ctx->state.vg.clear_color;
+   VGubyte r, g, b ,a;
+   VGint clear_colori;
+   /* FIXME: this is very nasty */
+   r = float_to_ubyte(clear_colorf[0]);
+   g = float_to_ubyte(clear_colorf[1]);
+   b = float_to_ubyte(clear_colorf[2]);
+   a = float_to_ubyte(clear_colorf[3]);
+   clear_colori = r << 24 | g << 16 | b << 8 | a;
+   image_cleari(img, clear_colori, x, y, width, height);
+}
+
+void image_sub_data(struct vg_image *image,
+                    const void * data,
+                    VGint dataStride,
+                    VGImageFormat dataFormat,
+                    VGint x, VGint y,
+                    VGint width, VGint height)
+{
+   const VGint yStep = 1;
+   VGubyte *src = (VGubyte *)data;
+   VGfloat temp[VEGA_MAX_IMAGE_WIDTH][4];
+   VGfloat *df = (VGfloat*)temp;
+   VGint i;
+   struct vg_context *ctx = vg_current_context();
+   struct pipe_screen *screen = ctx->pipe->screen;
+   struct pipe_texture *texture = image_texture(image);
+   VGint xoffset = 0, yoffset = 0;
+
+   if (x < 0) {
+      xoffset -= x;
+      width += x;
+      x = 0;
+   }
+   if (y < 0) {
+      yoffset -= y;
+      height += y;
+      y = 0;
+   }
+
+   if (width <= 0 || height <= 0) {
+      vg_set_error(ctx, VG_ILLEGAL_ARGUMENT_ERROR);
+      return;
+   }
+
+   if (x > image->width || y > image->width) {
+      vg_set_error(ctx, VG_ILLEGAL_ARGUMENT_ERROR);
+      return;
+   }
+
+   if (x + width > image->width) {
+      width = image->width - x;
+   }
+
+   if (y + height > image->height) {
+      height = image->height - y;
+   }
+
+   { /* upload color_data */
+      struct pipe_transfer *transfer = screen->get_tex_transfer(
+         screen, texture, 0, 0, 0,
+         PIPE_TRANSFER_WRITE, 0, 0, texture->width[0], texture->height[0]);
+      src += (dataStride * yoffset);
+      for (i = 0; i < height; i++) {
+         _vega_unpack_float_span_rgba(ctx, width, xoffset, src, dataFormat, temp);
+         pipe_put_tile_rgba(transfer, x+image->x, y+image->y, width, 1, df);
+         y += yStep;
+         src += dataStride;
+      }
+      screen->tex_transfer_destroy(transfer);
+   }
+}
+
+void image_get_sub_data(struct vg_image * image,
+                        void * data,
+                        VGint dataStride,
+                        VGImageFormat dataFormat,
+                        VGint sx, VGint sy,
+                        VGint width, VGint height)
+{
+   struct vg_context *ctx = vg_current_context();
+   struct pipe_context *pipe = ctx->pipe;
+   struct pipe_screen *screen = pipe->screen;
+   VGfloat temp[VEGA_MAX_IMAGE_WIDTH][4];
+   VGfloat *df = (VGfloat*)temp;
+   VGint y = 0, yStep = 1;
+   VGint i;
+   VGubyte *dst = (VGubyte *)data;
+
+   {
+      struct pipe_transfer *transfer =
+         screen->get_tex_transfer(screen,
+                                  image->texture,  0, 0, 0,
+                                  PIPE_TRANSFER_READ,
+                                  0, 0,
+                                  image->x + image->width,
+                                  image->y + image->height);
+      /* Do a row at a time to flip image data vertically */
+      for (i = 0; i < height; i++) {
+#if 0
+         debug_printf("%d-%d  == %d\n", sy, height, y);
+#endif
+         pipe_get_tile_rgba(transfer, sx+image->x, y, width, 1, df);
+         y += yStep;
+         _vega_pack_rgba_span_float(ctx, width, temp, dataFormat, dst);
+         dst += dataStride;
+      }
+
+      screen->tex_transfer_destroy(transfer);
+   }
+}
+
+struct vg_image * image_child_image(struct vg_image *parent,
+                                    VGint x, VGint y,
+                                    VGint width, VGint height)
+{
+   struct vg_context *ctx = vg_current_context();
+   struct vg_image *image = CALLOC_STRUCT(vg_image);
+
+   vg_init_object(&image->base, ctx, VG_OBJECT_IMAGE);
+
+   image->x = parent->x + x;
+   image->y = parent->y + y;
+   image->width = width;
+   image->height = height;
+   image->parent = parent;
+   image->texture = 0;
+   pipe_texture_reference(&image->texture,
+                          parent->texture);
+
+   image->sampler.wrap_s = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
+   image->sampler.wrap_t = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
+   image->sampler.wrap_r = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
+   image->sampler.min_img_filter = PIPE_TEX_MIPFILTER_NEAREST;
+   image->sampler.mag_img_filter = PIPE_TEX_MIPFILTER_NEAREST;
+   image->sampler.normalized_coords = 1;
+
+   if (!parent->children_array)
+      parent->children_array = array_create(
+         sizeof(struct vg_image*));
+
+   array_append_data(parent->children_array,
+                     &image, 1);
+
+   vg_context_add_object(ctx, VG_OBJECT_IMAGE, image);
+
+   return image;
+}
+
+void image_copy(struct vg_image *dst, VGint dx, VGint dy,
+                struct vg_image *src, VGint sx, VGint sy,
+                VGint width, VGint height,
+                VGboolean dither)
+{
+   struct vg_context *ctx = vg_current_context();
+
+   if (width <= 0 || height <= 0) {
+      vg_set_error(ctx, VG_ILLEGAL_ARGUMENT_ERROR);
+      return;
+   }
+   /* make sure rendering has completed */
+   ctx->pipe->flush(ctx->pipe, PIPE_FLUSH_RENDER_CACHE, NULL);
+   vg_copy_texture(ctx, dst->texture, dst->x + dx, dst->y + dy,
+                   src->texture, src->x + sx, src->y + sy, width, height);
+}
+
+void image_draw(struct vg_image *img)
+{
+   struct vg_context *ctx = vg_current_context();
+   VGfloat x1, y1;
+   VGfloat x2, y2;
+   VGfloat x3, y3;
+   VGfloat x4, y4;
+   struct matrix *matrix;
+
+   x1 = 0;
+   y1 = 0;
+   x2 = img->width;
+   y2 = 0;
+   x3 = img->width;
+   y3 = img->height;
+   x4 = 0;
+   y4 = img->height;
+
+   matrix = &ctx->state.vg.image_user_to_surface_matrix;
+
+   matrix_map_point(matrix, x1, y1, &x1, &y1);
+   matrix_map_point(matrix, x2, y2, &x2, &y2);
+   matrix_map_point(matrix, x3, y3, &x3, &y3);
+   matrix_map_point(matrix, x4, y4, &x4, &y4);
+
+   shader_set_drawing_image(ctx->shader, VG_TRUE);
+   shader_set_paint(ctx->shader, ctx->state.vg.fill_paint);
+   shader_set_image(ctx->shader, img);
+   shader_bind(ctx->shader);
+
+   renderer_texture_quad(ctx->renderer, image_texture(img),
+                         img->x, img->y, img->x + img->width, img->y + img->height,
+                         x1, y1, x2, y2, x3, y3, x4, y4);
+}
+
+void image_set_pixels(VGint dx, VGint dy,
+                      struct vg_image *src, VGint sx, VGint sy,
+                      VGint width, VGint height)
+{
+   struct vg_context *ctx = vg_current_context();
+   struct pipe_context *pipe = ctx->pipe;
+   struct pipe_screen *screen = pipe->screen;
+   struct pipe_surface *surf;
+   struct st_renderbuffer *strb = ctx->draw_buffer->strb;
+
+   /* make sure rendering has completed */
+   pipe->flush(pipe, PIPE_FLUSH_RENDER_CACHE, NULL);
+
+   surf = screen->get_tex_surface(screen, image_texture(src),  0, 0, 0,
+                                  PIPE_BUFFER_USAGE_GPU_READ);
+
+   vg_copy_surface(ctx, strb->surface, dx, dy,
+                   surf, sx+src->x, sy+src->y, width, height);
+
+   screen->tex_surface_destroy(surf);
+}
+
+void image_get_pixels(struct vg_image *dst, VGint dx, VGint dy,
+                      VGint sx, VGint sy,
+                      VGint width, VGint height)
+{
+   struct vg_context *ctx = vg_current_context();
+   struct pipe_context *pipe = ctx->pipe;
+   struct pipe_screen *screen = pipe->screen;
+   struct pipe_surface *surf;
+   struct st_renderbuffer *strb = ctx->draw_buffer->strb;
+
+   /* flip the y coordinates */
+   /*dy = dst->height - dy - height;*/
+
+   /* make sure rendering has completed */
+   pipe->flush(pipe, PIPE_FLUSH_RENDER_CACHE, NULL);
+
+   surf = screen->get_tex_surface(screen, image_texture(dst),  0, 0, 0,
+                                  PIPE_BUFFER_USAGE_GPU_WRITE |
+                                  PIPE_BUFFER_USAGE_GPU_READ);
+   vg_copy_surface(ctx, surf, dst->x + dx, dst->y + dy,
+                   strb->surface, sx, sy, width, height);
+
+   pipe_surface_reference(&surf, NULL);
+}
+
+
+VGboolean vg_image_overlaps(struct vg_image *dst,
+                            struct vg_image *src)
+{
+   if (dst == src || dst->parent == src ||
+       dst == src->parent)
+      return VG_TRUE;
+   if (dst->parent && dst->parent == src->parent) {
+      VGfloat left1 = dst->x;
+      VGfloat left2 = src->x;
+      VGfloat right1 = dst->x + dst->width;
+      VGfloat right2 = src->x + src->width;
+      VGfloat bottom1 = dst->y;
+      VGfloat bottom2 = src->y;
+      VGfloat top1 = dst->y + dst->height;
+      VGfloat top2 = src->y + src->height;
+
+      return !(left2 > right1 || right2 < left1 ||
+               top2 > bottom1 || bottom2 < top1);
+   }
+   return VG_FALSE;
+}
+
+VGint image_bind_samplers(struct vg_image *img, struct pipe_sampler_state **samplers,
+                          struct pipe_texture **textures)
+{
+   img->sampler.min_img_filter = image_sampler_filter(img->base.ctx);
+   img->sampler.mag_img_filter = image_sampler_filter(img->base.ctx);
+   samplers[3] = &img->sampler;
+   textures[3] = img->texture;
+   return 1;
+}
+
+VGint image_sampler_filter(struct vg_context *ctx)
+{
+    switch(ctx->state.vg.image_quality) {
+    case VG_IMAGE_QUALITY_NONANTIALIASED:
+       return PIPE_TEX_FILTER_NEAREST;
+       break;
+    case VG_IMAGE_QUALITY_FASTER:
+       return PIPE_TEX_FILTER_NEAREST;
+       break;
+    case VG_IMAGE_QUALITY_BETTER:
+       /*return PIPE_TEX_FILTER_ANISO;*/
+       return PIPE_TEX_FILTER_LINEAR;
+       break;
+    default:
+       debug_printf("Unknown image quality");
+    }
+    return PIPE_TEX_FILTER_NEAREST;
+}