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#include "main/mtypes.h"
#include "main/macros.h"
#include "main/samplerobj.h"
#include "intel_context.h"
#include "intel_mipmap_tree.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;
if (sampler->MinFilter == GL_NEAREST ||
sampler->MinFilter == GL_LINEAR) {
intelObj->_MaxLevel = tObj->BaseLevel;
} else {
intelObj->_MaxLevel = tObj->_MaxLevel;
}
}
/**
* Copies the image's contents at its level into the object's miptree,
* and updates the image to point at the object's miptree.
*/
static void
copy_image_data_to_tree(struct intel_context *intel,
struct intel_texture_object *intelObj,
struct intel_texture_image *intelImage)
{
if (intelImage->mt) {
/* Copy potentially with the blitter:
*/
intel_miptree_image_copy(intel,
intelObj->mt,
intelImage->base.Face,
intelImage->base.Level, intelImage->mt);
intel_miptree_release(intel, &intelImage->mt);
}
else {
assert(intelImage->base.Data != NULL);
/* More straightforward upload.
*/
intel_miptree_image_data(intel,
intelObj->mt,
intelImage->base.Face,
intelImage->base.Level,
intelImage->base.Data,
intelImage->base.RowStride,
intelImage->base.RowStride *
intelImage->base.Height);
_mesa_align_free(intelImage->base.Data);
intelImage->base.Data = NULL;
}
intel_miptree_reference(&intelImage->mt, intelObj->mt);
}
/*
*/
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;
/* We know/require this is true by now:
*/
assert(intelObj->base._Complete);
/* What levels must the tree include at a minimum?
*/
intel_update_max_level(intelObj, sampler);
firstImage = intel_texture_image(tObj->Image[0][tObj->BaseLevel]);
/* Fallback case:
*/
if (firstImage->base.Border) {
if (intelObj->mt) {
intel_miptree_release(intel, &intelObj->mt);
}
return GL_FALSE;
}
/* 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 &&
(intelObj->mt->target != intelObj->base.Target ||
intelObj->mt->format != firstImage->base.TexFormat ||
intelObj->mt->first_level != tObj->BaseLevel ||
intelObj->mt->last_level < intelObj->_MaxLevel ||
intelObj->mt->width0 != firstImage->base.Width ||
intelObj->mt->height0 != firstImage->base.Height ||
intelObj->mt->depth0 != firstImage->base.Depth)) {
intel_miptree_release(intel, &intelObj->mt);
}
/* May need to create a new tree:
*/
if (!intelObj->mt) {
intelObj->mt = intel_miptree_create(intel,
intelObj->base.Target,
firstImage->base.TexFormat,
tObj->BaseLevel,
intelObj->_MaxLevel,
firstImage->base.Width,
firstImage->base.Height,
firstImage->base.Depth,
GL_TRUE);
if (!intelObj->mt)
return GL_FALSE;
}
/* Pull in any images not in the object's tree:
*/
nr_faces = (intelObj->base.Target == GL_TEXTURE_CUBE_MAP) ? 6 : 1;
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;
/* Need to import images in main memory or held in other trees.
* If it's a render target, then its data isn't needed to be in
* the object tree (otherwise we'd be FBO incomplete), and we need
* to keep track of the image's MT as needing to be pulled in still,
* or we'll lose the rendering that's done to it.
*/
if (intelObj->mt != intelImage->mt &&
!intelImage->used_as_render_target) {
copy_image_data_to_tree(intel, intelObj, intelImage);
}
}
}
return GL_TRUE;
}
void
intel_tex_map_level_images(struct intel_context *intel,
struct intel_texture_object *intelObj,
int level)
{
GLuint nr_faces = (intelObj->base.Target == GL_TEXTURE_CUBE_MAP) ? 6 : 1;
GLuint face;
for (face = 0; face < nr_faces; face++) {
struct intel_texture_image *intelImage =
intel_texture_image(intelObj->base.Image[face][level]);
if (intelImage && intelImage->mt) {
intelImage->base.Data =
intel_miptree_image_map(intel,
intelImage->mt,
intelImage->base.Face,
intelImage->base.Level,
&intelImage->base.RowStride,
intelImage->base.ImageOffsets);
/* convert stride to texels, not bytes */
intelImage->base.RowStride /= intelImage->mt->cpp;
/* intelImage->base.ImageStride /= intelImage->mt->cpp; */
}
}
}
void
intel_tex_unmap_level_images(struct intel_context *intel,
struct intel_texture_object *intelObj,
int level)
{
GLuint nr_faces = (intelObj->base.Target == GL_TEXTURE_CUBE_MAP) ? 6 : 1;
GLuint face;
for (face = 0; face < nr_faces; face++) {
struct intel_texture_image *intelImage =
intel_texture_image(intelObj->base.Image[face][level]);
if (intelImage && intelImage->mt) {
intel_miptree_image_unmap(intel, intelImage->mt);
intelImage->base.Data = NULL;
}
}
}
void
intel_tex_map_images(struct intel_context *intel,
struct intel_texture_object *intelObj)
{
int i;
DBG("%s\n", __FUNCTION__);
for (i = intelObj->base.BaseLevel; i <= intelObj->_MaxLevel; i++)
intel_tex_map_level_images(intel, intelObj, i);
}
void
intel_tex_unmap_images(struct intel_context *intel,
struct intel_texture_object *intelObj)
{
int i;
for (i = intelObj->base.BaseLevel; i <= intelObj->_MaxLevel; i++)
intel_tex_unmap_level_images(intel, intelObj, i);
}
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