replace _mesa_logbase2 with util_logbase2

[mesa.git] / src / mesa / state_tracker / st_gen_mipmap.c

diff --git a/src/mesa/state_tracker/st_gen_mipmap.c b/src/mesa/state_tracker/st_gen_mipmap.c
index 10af11e17b4f2af72be7e90179838e09de93086f..1983bbc76c225ebbf5295391763c68f96aa42ab0 100644 (file)
--- a/src/mesa/state_tracker/st_gen_mipmap.c
+++ b/src/mesa/state_tracker/st_gen_mipmap.c
@@ -26,50 +26,26 @@
  **************************************************************************/
 
 
-#include "main/imports.h"
+#include "main/errors.h"
+#include "util/imports.h"
 #include "main/mipmap.h"
 #include "main/teximage.h"
 
 #include "pipe/p_context.h"
 #include "pipe/p_defines.h"
 #include "util/u_inlines.h"
-#include "util/u_format.h"
+#include "util/format/u_format.h"
 #include "util/u_gen_mipmap.h"
 
 #include "st_debug.h"
 #include "st_context.h"
 #include "st_texture.h"
+#include "st_util.h"
 #include "st_gen_mipmap.h"
 #include "st_cb_bitmap.h"
 #include "st_cb_texture.h"
 
 
-/**
- * Compute the expected number of mipmap levels in the texture given
- * the width/height/depth of the base image and the GL_TEXTURE_BASE_LEVEL/
- * GL_TEXTURE_MAX_LEVEL settings.  This will tell us how many mipmap
- * levels should be generated.
- */
-static GLuint
-compute_num_levels(struct gl_context *ctx,
-                   struct gl_texture_object *texObj,
-                   GLenum target)
-{
-   const struct gl_texture_image *baseImage;
-   GLuint numLevels;
-
-   baseImage = _mesa_get_tex_image(ctx, texObj, target, texObj->BaseLevel);
-
-   numLevels = texObj->BaseLevel + baseImage->MaxNumLevels;
-   numLevels = MIN2(numLevels, (GLuint) texObj->MaxLevel + 1);
-   if (texObj->Immutable)
-      numLevels = MIN2(numLevels, texObj->NumLevels);
-   assert(numLevels >= 1);
-
-   return numLevels;
-}
-
-
 /**
  * Called via ctx->Driver.GenerateMipmap().
  */
@@ -80,19 +56,25 @@ st_generate_mipmap(struct gl_context *ctx, GLenum target,
    struct st_context *st = st_context(ctx);
    struct st_texture_object *stObj = st_texture_object(texObj);
    struct pipe_resource *pt = st_get_texobj_resource(texObj);
-   const uint baseLevel = texObj->BaseLevel;
+   uint baseLevel = texObj->BaseLevel;
    enum pipe_format format;
    uint lastLevel, first_layer, last_layer;
 
    if (!pt)
       return;
 
+   if (texObj->Immutable)
+      baseLevel += texObj->MinLevel;
+
    /* not sure if this ultimately actually should work,
       but we're not supporting multisampled textures yet. */
    assert(pt->nr_samples < 2);
 
    /* find expected last mipmap level to generate*/
-   lastLevel = compute_num_levels(ctx, texObj, target) - 1;
+   lastLevel = _mesa_compute_num_levels(ctx, texObj, target) - 1;
+
+   if (texObj->Immutable)
+      lastLevel += texObj->MinLevel;
 
    if (lastLevel == 0)
       return;
@@ -125,7 +107,7 @@ st_generate_mipmap(struct gl_context *ctx, GLenum target,
        *
        * After this, we'll have all mipmap levels in one resource.
        */
-      st_finalize_texture(ctx, st->pipe, texObj);
+      st_finalize_texture(ctx, st->pipe, texObj, 0);
    }
 
    pt = stObj->pt;
@@ -149,6 +131,9 @@ st_generate_mipmap(struct gl_context *ctx, GLenum target,
    else
       format = pt->format;
 
+   if (texObj->Sampler.sRGBDecode == GL_SKIP_DECODE_EXT)
+      format = util_format_linear(format);
+
    /* First see if the driver supports hardware mipmap generation,
     * if not then generate the mipmap by rendering/texturing.
     * If that fails, use the software fallback.