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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_blit.h"
#include "intel_tex.h"
#include "intel_tex_layout.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;
}
}
/*
*/
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;
/* 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.Base.Border) {
intel_miptree_release(&intelObj->mt);
return false;
}
intel_miptree_get_dimensions_for_image(&firstImage->base.Base,
&width, &height, &depth);
/* 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.Base.TexFormat ||
intelObj->mt->first_level != tObj->BaseLevel ||
intelObj->mt->last_level < intelObj->_MaxLevel ||
intelObj->mt->width0 != width ||
intelObj->mt->height0 != height ||
intelObj->mt->depth0 != depth)) {
intel_miptree_release(&intelObj->mt);
}
/* May need to create a new tree:
*/
if (!intelObj->mt) {
intelObj->mt = intel_miptree_create(intel,
intelObj->base.Target,
firstImage->base.Base.TexFormat,
tObj->BaseLevel,
intelObj->_MaxLevel,
width,
height,
depth,
true);
if (!intelObj->mt)
return 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) {
intel_miptree_copy_teximage(intel, intelImage, intelObj->mt);
}
}
}
return true;
}
/**
* \param mode bitmask of GL_MAP_READ_BIT, GL_MAP_WRITE_BIT
*/
static void
intel_tex_map_image_for_swrast(struct intel_context *intel,
struct intel_texture_image *intel_image,
GLbitfield mode)
{
int level = intel_image->base.Base.Level;
int face = intel_image->base.Base.Face;
struct intel_mipmap_tree *mt;
unsigned int x, y;
if (!intel_image || !intel_image->mt)
return;
mt = intel_image->mt;
if (mt->target == GL_TEXTURE_3D ||
mt->target == GL_TEXTURE_2D_ARRAY ||
mt->target == GL_TEXTURE_1D_ARRAY) {
int i;
/* ImageOffsets[] is only used for swrast's fetch_texel_3d, so we can't
* share code with the normal path.
*/
for (i = 0; i < mt->level[level].depth; i++) {
intel_miptree_get_image_offset(mt, level, face, i, &x, &y);
intel_image->base.ImageOffsets[i] = x + y * mt->region->pitch;
}
DBG("%s \n", __FUNCTION__);
intel_image->base.Data = intel_region_map(intel, mt->region, mode);
} else {
assert(mt->level[level].depth == 1);
intel_miptree_get_image_offset(mt, level, face, 0, &x, &y);
DBG("%s: (%d,%d) -> (%d, %d)/%d\n",
__FUNCTION__, face, level, x, y, mt->region->pitch * mt->cpp);
intel_image->base.Data = intel_region_map(intel, mt->region, mode) +
(x + y * mt->region->pitch) * mt->cpp;
}
intel_image->base.RowStride = mt->region->pitch;
}
static void
intel_tex_unmap_image_for_swrast(struct intel_context *intel,
struct intel_texture_image *intel_image)
{
if (intel_image && intel_image->mt) {
intel_region_unmap(intel, intel_image->mt->region);
intel_image->base.Data = NULL;
}
}
/**
* \param mode bitmask of GL_MAP_READ_BIT, GL_MAP_WRITE_BIT
*/
void
intel_tex_map_images(struct intel_context *intel,
struct intel_texture_object *intelObj,
GLbitfield mode)
{
GLuint nr_faces = (intelObj->base.Target == GL_TEXTURE_CUBE_MAP) ? 6 : 1;
int i, face;
DBG("%s\n", __FUNCTION__);
for (i = intelObj->base.BaseLevel; i <= intelObj->_MaxLevel; i++) {
for (face = 0; face < nr_faces; face++) {
struct intel_texture_image *intel_image =
intel_texture_image(intelObj->base.Image[face][i]);
intel_tex_map_image_for_swrast(intel, intel_image, mode);
}
}
}
void
intel_tex_unmap_images(struct intel_context *intel,
struct intel_texture_object *intelObj)
{
GLuint nr_faces = (intelObj->base.Target == GL_TEXTURE_CUBE_MAP) ? 6 : 1;
int i, face;
for (i = intelObj->base.BaseLevel; i <= intelObj->_MaxLevel; i++) {
for (face = 0; face < nr_faces; face++) {
struct intel_texture_image *intel_image =
intel_texture_image(intelObj->base.Image[face][i]);
intel_tex_unmap_image_for_swrast(intel, intel_image);
}
}
}
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