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#include "main/mtypes.h"
#include "main/macros.h"
#include "main/samplerobj.h"
#include "main/texobj.h"
#include "brw_context.h"
#include "intel_mipmap_tree.h"
#include "intel_blit.h"
#include "intel_tex.h"
#define FILE_DEBUG_FLAG DEBUG_TEXTURE
/**
* When validating, we only care about the texture images that could
* be seen, so for non-mipmapped modes we want to ignore everything
* but BaseLevel.
*/
static void
intel_update_max_level(struct intel_texture_object *intelObj,
struct gl_sampler_object *sampler)
{
struct gl_texture_object *tObj = &intelObj->base;
int maxlevel;
if (sampler->MinFilter == GL_NEAREST ||
sampler->MinFilter == GL_LINEAR) {
maxlevel = tObj->BaseLevel;
} else {
maxlevel = tObj->_MaxLevel;
}
if (intelObj->_MaxLevel != maxlevel) {
intelObj->_MaxLevel = maxlevel;
intelObj->needs_validate = true;
}
}
/*
*/
GLuint
intel_finalize_mipmap_tree(struct intel_context *intel, GLuint unit)
{
struct gl_context *ctx = &intel->ctx;
struct gl_texture_object *tObj = intel->ctx.Texture.Unit[unit]._Current;
struct intel_texture_object *intelObj = intel_texture_object(tObj);
struct gl_sampler_object *sampler = _mesa_get_samplerobj(ctx, unit);
GLuint face, i;
GLuint nr_faces = 0;
struct intel_texture_image *firstImage;
int width, height, depth;
/* TBOs require no validation -- they always just point to their BO. */
if (tObj->Target == GL_TEXTURE_BUFFER)
return true;
/* We know/require this is true by now:
*/
assert(intelObj->base._BaseComplete);
/* What levels must the tree include at a minimum?
*/
intel_update_max_level(intelObj, sampler);
if (intelObj->mt && intelObj->mt->first_level != tObj->BaseLevel)
intelObj->needs_validate = true;
if (!intelObj->needs_validate)
return true;
firstImage = intel_texture_image(tObj->Image[0][tObj->BaseLevel]);
/* Check tree can hold all active levels. Check tree matches
* target, imageFormat, etc.
*
* For pre-gen4, we have to match first_level == tObj->BaseLevel,
* because we don't have the control that gen4 does to make min/mag
* determination happen at a nonzero (hardware) baselevel. Because
* of that, we just always relayout on baselevel change.
*/
if (intelObj->mt &&
(!intel_miptree_match_image(intelObj->mt, &firstImage->base.Base) ||
intelObj->mt->first_level != tObj->BaseLevel ||
intelObj->mt->last_level < intelObj->_MaxLevel)) {
intel_miptree_release(&intelObj->mt);
}
/* May need to create a new tree:
*/
if (!intelObj->mt) {
intel_miptree_get_dimensions_for_image(&firstImage->base.Base,
&width, &height, &depth);
perf_debug("Creating new %s %dx%dx%d %d..%d miptree to handle finalized "
"texture miptree.\n",
_mesa_get_format_name(firstImage->base.Base.TexFormat),
width, height, depth, tObj->BaseLevel, intelObj->_MaxLevel);
intelObj->mt = intel_miptree_create(intel,
intelObj->base.Target,
firstImage->base.Base.TexFormat,
tObj->BaseLevel,
intelObj->_MaxLevel,
width,
height,
depth,
true,
0 /* num_samples */,
INTEL_MIPTREE_TILING_ANY);
if (!intelObj->mt)
return false;
}
/* Pull in any images not in the object's tree:
*/
nr_faces = _mesa_num_tex_faces(intelObj->base.Target);
for (face = 0; face < nr_faces; face++) {
for (i = tObj->BaseLevel; i <= intelObj->_MaxLevel; i++) {
struct intel_texture_image *intelImage =
intel_texture_image(intelObj->base.Image[face][i]);
/* skip too small size mipmap */
if (intelImage == NULL)
break;
if (intelObj->mt != intelImage->mt) {
intel_miptree_copy_teximage(intel, intelImage, intelObj->mt,
false /* invalidate */);
}
/* After we're done, we'd better agree that our layout is
* appropriate, or we'll end up hitting this function again on the
* next draw
*/
assert(intel_miptree_match_image(intelObj->mt, &intelImage->base.Base));
}
}
intelObj->needs_validate = false;
return true;
}
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