static void
i915_miptree_layout_2d(struct intel_mipmap_tree * mt)
{
GLuint width = mt->width0;
GLuint height = mt->height0;
GLuint img_height;
GLint level;
mt->total_width = mt->width0;
mt->total_height = 0;
for (level = mt->first_level; level <= mt->last_level; level++) {
intel_miptree_set_level_info(mt, level,
0, mt->total_height,
width, height, 1);
if (mt->compressed)
img_height = ALIGN(height, 4) / 4;
else
img_height = ALIGN(height, 2);
mt->total_height += img_height;
width = minify(width);
height = minify(height);
}
}
static void
apply_gen6_stencil_hiz_offset(struct isl_surf *surf,
struct intel_mipmap_tree *mt,
uint32_t lod,
uint32_t *offset)
{
assert(mt->array_layout == ALL_SLICES_AT_EACH_LOD);
if (mt->format == MESA_FORMAT_S_UINT8) {
/* Note: we can't compute the stencil offset using
* intel_miptree_get_aligned_offset(), because the miptree
* claims that the region is untiled even though it's W tiled.
*/
*offset = mt->level[lod].level_y * mt->pitch +
mt->level[lod].level_x * 64;
} else {
*offset = intel_miptree_get_aligned_offset(mt,
mt->level[lod].level_x,
mt->level[lod].level_y);
}
surf->logical_level0_px.width = minify(surf->logical_level0_px.width, lod);
surf->logical_level0_px.height = minify(surf->logical_level0_px.height, lod);
surf->phys_level0_sa.width = minify(surf->phys_level0_sa.width, lod);
surf->phys_level0_sa.height = minify(surf->phys_level0_sa.height, lod);
surf->levels = 1;
surf->array_pitch_el_rows =
ALIGN(surf->phys_level0_sa.height, surf->image_alignment_el.height);
}
static void
i915_miptree_layout_2d(struct intel_context *intel,
struct intel_mipmap_tree * mt,
uint32_t tiling)
{
GLuint width = mt->width0;
GLuint height = mt->height0;
GLuint img_height;
GLint level;
mt->pitch = intel_miptree_pitch_align (intel, mt, tiling, mt->width0);
mt->total_height = 0;
for (level = mt->first_level; level <= mt->last_level; level++) {
intel_miptree_set_level_info(mt, level, 1,
0, mt->total_height,
width, height, 1);
if (mt->compressed)
img_height = MAX2(1, height / 4);
else
img_height = (MAX2(2, height) + 1) & ~1;
mt->total_height += img_height;
width = minify(width);
height = minify(height);
}
}
static void r300_setup_miptree(struct r300_texture* tex)
{
struct pipe_texture* base = &tex->tex;
int stride, size, offset;
int i;
for (i = 0; i <= base->last_level; i++) {
if (i > 0) {
base->width[i] = minify(base->width[i-1]);
base->height[i] = minify(base->height[i-1]);
base->depth[i] = minify(base->depth[i-1]);
}
base->nblocksx[i] = pf_get_nblocksx(&base->block, base->width[i]);
base->nblocksy[i] = pf_get_nblocksy(&base->block, base->width[i]);
/* Radeons enjoy things in multiples of 32. */
/* XXX this can be 32 when POT */
stride = (base->nblocksx[i] * base->block.size + 63) & ~63;
size = stride * base->nblocksy[i] * base->depth[i];
tex->offset[i] = (tex->size + 63) & ~63;
tex->size = tex->offset[i] + size;
if (i == 0) {
tex->stride = stride;
}
}
}
static void calculate_miptree_layout(radeonContextPtr rmesa, radeon_mipmap_tree *mt)
{
GLuint curOffset, i, face, level;
assert(mt->numLevels <= rmesa->glCtx.Const.MaxTextureLevels);
curOffset = 0;
for(face = 0; face < mt->faces; face++) {
for(i = 0, level = mt->baseLevel; i < mt->numLevels; i++, level++) {
mt->levels[level].valid = 1;
mt->levels[level].width = minify(mt->width0, i);
mt->levels[level].height = minify(mt->height0, i);
mt->levels[level].depth = minify(mt->depth0, i);
compute_tex_image_offset(rmesa, mt, face, level, &curOffset);
}
}
/* Note the required size in memory */
mt->totalsize = (curOffset + RADEON_OFFSET_MASK) & ~RADEON_OFFSET_MASK;
radeon_print(RADEON_TEXTURE, RADEON_TRACE,
"%s(%p, %p) total size %d\n",
__func__, rmesa, mt, mt->totalsize);
}
void get_record_statistics(Record_Statistics *stats_out, Time_Record *records, int count){
Record_Statistics stats;
stats.max = records[0];
stats.min = records[0];
stats.expected = records[0];
stats.count = count;
Time_Record *record = records + 1;
for (int i = 1; i < count; ++i, ++record){
stats.expected = stats.expected + *record;
minify(stats.min.buffer, record->buffer);
minify(stats.min.gap_buffer, record->gap_buffer);
minify(stats.min.multi_gap_buffer, record->multi_gap_buffer);
minify(stats.min.rope_buffer, record->rope_buffer);
maxify(stats.max.buffer, record->buffer);
maxify(stats.max.gap_buffer, record->gap_buffer);
maxify(stats.max.multi_gap_buffer, record->multi_gap_buffer);
maxify(stats.max.rope_buffer, record->rope_buffer);
}
stats.expected /= count;
*stats_out = stats;
}
static void
brw_miptree_layout_texture_array(struct intel_context *intel,
struct intel_mipmap_tree *mt)
{
GLuint level;
GLuint qpitch = 0;
int h0, h1, q;
h0 = ALIGN(mt->height0, mt->align_h);
h1 = ALIGN(minify(mt->height0), mt->align_h);
if (mt->array_spacing_lod0)
qpitch = h0;
else
qpitch = (h0 + h1 + (intel->gen >= 7 ? 12 : 11) * mt->align_h);
if (mt->compressed)
qpitch /= 4;
i945_miptree_layout_2d(mt);
for (level = mt->first_level; level <= mt->last_level; level++) {
for (q = 0; q < mt->depth0; q++) {
intel_miptree_set_image_offset(mt, level, q, 0, q * qpitch);
}
}
mt->total_height = qpitch * mt->depth0;
}
static void
gen9_miptree_layout_1d(struct intel_mipmap_tree *mt)
{
unsigned x = 0;
unsigned width = mt->physical_width0;
unsigned depth = mt->physical_depth0; /* number of array layers. */
/* When this layout is used the horizontal alignment is fixed at 64 and the
* hardware ignores the value given in the surface state
*/
const unsigned int align_w = 64;
mt->total_height = mt->physical_height0;
mt->total_width = 0;
for (unsigned level = mt->first_level; level <= mt->last_level; level++) {
unsigned img_width;
intel_miptree_set_level_info(mt, level, x, 0, depth);
img_width = ALIGN(width, align_w);
mt->total_width = MAX2(mt->total_width, x + img_width);
x += img_width;
width = minify(width, 1);
}
}
//==============================================================
void f0r_update(f0r_instance_t instance, double time, const uint32_t* inframe, uint32_t* outframe)
{
Tinstance *in;
in=(Tinstance*)instance;
ExceptionInfo *exception;
/* Generamos la excepción */
exception = AcquireExceptionInfo();
/* Transformamos el mapa de imagen de entrada para imagemagick */
Image *im = ConstituteImage(in->size.width, in->size.height, "RGBA", CharPixel, inframe, exception);
if (in->preview)
{
minify(&im, (int)in->preview, exception);
}
/* Generamos la imagen de salida */
Image *out = MotionBlurImage(im, in->radius, in->deviation, in->angle, exception);
if (in->preview)
{
magnify(&out, (int)in->preview, exception);
}
/* Volvemos a coger el contenido de la imagen para frei0r */
ExportImagePixels(out, 0, 0, in->size.width, in->size.height, "RGBA", CharPixel, outframe, exception);
/* Liberamos memoria */
exception = DestroyExceptionInfo(exception);
im = DestroyImage(im);
out = DestroyImage(out);
}
static void
brw_miptree_layout_texture_array(struct brw_context *brw,
struct intel_mipmap_tree *mt)
{
unsigned qpitch = 0;
int h0, h1;
h0 = ALIGN(mt->physical_height0, mt->align_h);
h1 = ALIGN(minify(mt->physical_height0, 1), mt->align_h);
if (mt->array_spacing_lod0)
qpitch = h0;
else
qpitch = (h0 + h1 + (brw->gen >= 7 ? 12 : 11) * mt->align_h);
if (mt->compressed)
qpitch /= 4;
brw_miptree_layout_2d(mt);
for (unsigned level = mt->first_level; level <= mt->last_level; level++) {
for (int q = 0; q < mt->physical_depth0; q++) {
intel_miptree_set_image_offset(mt, level, q, 0, q * qpitch);
}
}
mt->total_height = qpitch * mt->physical_depth0;
align_cube(mt);
}
static void
i915_miptree_layout_3d(struct intel_context *intel,
struct intel_mipmap_tree * mt,
uint32_t tiling)
{
GLuint width = mt->width0;
GLuint height = mt->height0;
GLuint depth = mt->depth0;
GLuint stack_height = 0;
GLint level;
/* Calculate the size of a single slice. */
mt->pitch = intel_miptree_pitch_align (intel, mt, tiling, mt->width0);
/* XXX: hardware expects/requires 9 levels at minimum. */
for (level = mt->first_level; level <= MAX2(8, mt->last_level); level++) {
intel_miptree_set_level_info(mt, level, depth, 0, mt->total_height,
width, height, depth);
stack_height += MAX2(2, height);
width = minify(width);
height = minify(height);
depth = minify(depth);
}
/* Fixup depth image_offsets: */
depth = mt->depth0;
for (level = mt->first_level; level <= mt->last_level; level++) {
GLuint i;
for (i = 0; i < depth; i++) {
intel_miptree_set_image_offset(mt, level, i,
0, i * stack_height);
}
depth = minify(depth);
}
/* Multiply slice size by texture depth for total size. It's
* remarkable how wasteful of memory the i915 texture layouts
* are. They are largely fixed in the i945.
*/
mt->total_height = stack_height * mt->depth0;
}
unsigned
brw_miptree_get_vertical_slice_pitch(const struct brw_context *brw,
const struct intel_mipmap_tree *mt,
unsigned level)
{
if (brw->gen >= 9) {
/* ALL_SLICES_AT_EACH_LOD isn't supported on Gen8+ but this code will
* effectively end up with a packed qpitch anyway whenever
* mt->first_level == mt->last_level.
*/
assert(mt->array_layout != ALL_SLICES_AT_EACH_LOD);
/* On Gen9 we can pick whatever qpitch we like as long as it's aligned
* to the vertical alignment so we don't need to add any extra rows.
*/
unsigned qpitch = mt->total_height;
/* If the surface might be used as a stencil buffer or HiZ buffer then
* it needs to be a multiple of 8.
*/
const GLenum base_format = _mesa_get_format_base_format(mt->format);
if (_mesa_is_depth_or_stencil_format(base_format))
qpitch = ALIGN(qpitch, 8);
/* 3D textures need to be aligned to the tile height. At this point we
* don't know which tiling will be used so let's just align it to 32
*/
if (mt->target == GL_TEXTURE_3D)
qpitch = ALIGN(qpitch, 32);
return qpitch;
} else if (mt->target == GL_TEXTURE_3D ||
(brw->gen == 4 && mt->target == GL_TEXTURE_CUBE_MAP) ||
mt->array_layout == ALL_SLICES_AT_EACH_LOD) {
return ALIGN_NPOT(minify(mt->physical_height0, level), mt->align_h);
} else {
const unsigned h0 = ALIGN_NPOT(mt->physical_height0, mt->align_h);
const unsigned h1 = ALIGN_NPOT(minify(mt->physical_height0, 1), mt->align_h);
return h0 + h1 + (brw->gen >= 7 ? 12 : 11) * mt->align_h;
}
}
static void
brw_miptree_layout_texture_array(struct brw_context *brw,
struct intel_mipmap_tree *mt)
{
int h0, h1;
unsigned height = mt->physical_height0;
bool layout_1d = use_linear_1d_layout(brw, mt);
h0 = ALIGN(mt->physical_height0, mt->align_h);
h1 = ALIGN(minify(mt->physical_height0, 1), mt->align_h);
if (mt->array_layout == ALL_SLICES_AT_EACH_LOD)
mt->qpitch = h0;
else
mt->qpitch = (h0 + h1 + (brw->gen >= 7 ? 12 : 11) * mt->align_h);
int physical_qpitch = mt->compressed ? mt->qpitch / 4 : mt->qpitch;
if (layout_1d)
gen9_miptree_layout_1d(mt);
else
brw_miptree_layout_2d(mt);
for (unsigned level = mt->first_level; level <= mt->last_level; level++) {
unsigned img_height;
img_height = ALIGN(height, mt->align_h);
if (mt->compressed)
img_height /= mt->align_h;
for (int q = 0; q < mt->level[level].depth; q++) {
if (mt->array_layout == ALL_SLICES_AT_EACH_LOD) {
intel_miptree_set_image_offset(mt, level, q, 0, q * img_height);
} else {
intel_miptree_set_image_offset(mt, level, q, 0, q * physical_qpitch);
}
}
height = minify(height, 1);
}
if (mt->array_layout == ALL_LOD_IN_EACH_SLICE)
mt->total_height = physical_qpitch * mt->physical_depth0;
align_cube(mt);
}
unsigned
brw_miptree_get_horizontal_slice_pitch(const struct brw_context *brw,
const struct intel_mipmap_tree *mt,
unsigned level)
{
if ((brw->gen < 9 && mt->target == GL_TEXTURE_3D) ||
(brw->gen == 4 && mt->target == GL_TEXTURE_CUBE_MAP)) {
return ALIGN_NPOT(minify(mt->physical_width0, level), mt->align_w);
} else {
return 0;
}
}
/**
* Sets up a DRIImage structure to point to a slice out of a miptree.
*/
static void
intel_setup_image_from_mipmap_tree(struct brw_context *brw, __DRIimage *image,
struct intel_mipmap_tree *mt, GLuint level,
GLuint zoffset)
{
intel_miptree_make_shareable(brw, mt);
intel_miptree_check_level_layer(mt, level, zoffset);
image->width = minify(mt->physical_width0, level - mt->first_level);
image->height = minify(mt->physical_height0, level - mt->first_level);
image->pitch = mt->pitch;
image->offset = intel_miptree_get_tile_offsets(mt, level, zoffset,
&image->tile_x,
&image->tile_y);
drm_intel_bo_unreference(image->bo);
image->bo = mt->bo;
drm_intel_bo_reference(mt->bo);
}
/* Conventional allocation path for non-display textures:
*/
static boolean
softpipe_texture_layout(struct pipe_screen *screen,
struct softpipe_texture * spt)
{
struct pipe_winsys *ws = screen->winsys;
struct pipe_texture *pt = &spt->base;
unsigned level;
unsigned width = pt->width[0];
unsigned height = pt->height[0];
unsigned depth = pt->depth[0];
unsigned buffer_size = 0;
for (level = 0; level <= pt->last_level; level++) {
pt->width[level] = width;
pt->height[level] = height;
pt->depth[level] = depth;
pt->nblocksx[level] = pf_get_nblocksx(&pt->block, width);
pt->nblocksy[level] = pf_get_nblocksy(&pt->block, height);
spt->stride[level] = pt->nblocksx[level]*pt->block.size;
spt->level_offset[level] = buffer_size;
buffer_size += (pt->nblocksy[level] *
((pt->target == PIPE_TEXTURE_CUBE) ? 6 : depth) *
spt->stride[level]);
width = minify(width);
height = minify(height);
depth = minify(depth);
}
spt->buffer = ws->buffer_create(ws, 32,
PIPE_BUFFER_USAGE_PIXEL,
buffer_size);
return spt->buffer != NULL;
}
void
brw_blorp_mip_info::set(struct intel_mipmap_tree *mt,
unsigned int level, unsigned int layer)
{
/* Layer is a physical layer, so if this is a 2D multisample array texture
* using INTEL_MSAA_LAYOUT_UMS or INTEL_MSAA_LAYOUT_CMS, then it had better
* be a multiple of num_samples.
*/
if (mt->msaa_layout == INTEL_MSAA_LAYOUT_UMS ||
mt->msaa_layout == INTEL_MSAA_LAYOUT_CMS) {
assert(layer % mt->num_samples == 0);
}
intel_miptree_check_level_layer(mt, level, layer);
this->mt = mt;
this->level = level;
this->layer = layer;
this->width = minify(mt->physical_width0, level - mt->first_level);
this->height = minify(mt->physical_height0, level - mt->first_level);
intel_miptree_get_image_offset(mt, level, layer, &x_offset, &y_offset);
}
static void
brw_miptree_layout_texture_array(struct brw_context *brw,
struct intel_mipmap_tree *mt)
{
unsigned height = mt->physical_height0;
bool layout_1d = gen9_use_linear_1d_layout(brw, mt);
int physical_qpitch;
if (layout_1d)
gen9_miptree_layout_1d(mt);
else
brw_miptree_layout_2d(mt);
if (layout_1d) {
physical_qpitch = 1;
/* When using the horizontal layout the qpitch specifies the distance in
* pixels between array slices. The total_width is forced to be a
* multiple of the horizontal alignment in brw_miptree_layout_1d (in
* this case it's always 64). The vertical alignment is ignored.
*/
mt->qpitch = mt->total_width;
} else {
mt->qpitch = brw_miptree_get_vertical_slice_pitch(brw, mt, 0);
/* Unlike previous generations the qpitch is a multiple of the
* compressed block size on Gen9 so physical_qpitch matches mt->qpitch.
*/
physical_qpitch = (mt->compressed && brw->gen < 9 ? mt->qpitch / 4 :
mt->qpitch);
}
for (unsigned level = mt->first_level; level <= mt->last_level; level++) {
unsigned img_height;
img_height = ALIGN_NPOT(height, mt->align_h);
if (mt->compressed)
img_height /= mt->align_h;
for (unsigned q = 0; q < mt->level[level].depth; q++) {
if (mt->array_layout == ALL_SLICES_AT_EACH_LOD) {
intel_miptree_set_image_offset(mt, level, q, 0, q * img_height);
} else {
intel_miptree_set_image_offset(mt, level, q, 0, q * physical_qpitch);
}
}
height = minify(height, 1);
}
if (mt->array_layout == ALL_LOD_IN_EACH_SLICE)
mt->total_height = physical_qpitch * mt->physical_depth0;
align_cube(mt);
}
void ofxUISuperCanvas::setMinified(bool _bIsMinified)
{
if(bIsMinified != _bIsMinified)
{
bIsMinified = _bIsMinified;
if(bIsMinified)
{
minify();
}
else
{
maximize();
}
}
}
float4 __CGsampler1DARRAY_state::sample(float4 strq, float lod)
{
lod += clampedLodBias;
if (lod < minLod) {
lod = minLod;
} else if (lod > maxLod) {
lod = maxLod;
} else {
// lod not clamped.
}
if (lod <= magnifyTransition) {
return magnify(0, strq);
} else {
return minify(0, strq, lod);
}
}
/**
* Implements fast depth clears on gen6+.
*
* Fast clears basically work by setting a flag in each of the subspans
* represented in the HiZ buffer that says "When you need the depth values for
* this subspan, it's the hardware's current clear value." Then later rendering
* can just use the static clear value instead of referencing memory.
*
* The tricky part of the implementation is that you have to have the clear
* value that was used on the depth buffer in place for all further rendering,
* at least until a resolve to the real depth buffer happens.
*/
static bool
brw_fast_clear_depth(struct gl_context *ctx)
{
struct brw_context *brw = brw_context(ctx);
struct gl_framebuffer *fb = ctx->DrawBuffer;
struct intel_renderbuffer *depth_irb =
intel_get_renderbuffer(fb, BUFFER_DEPTH);
struct intel_mipmap_tree *mt = depth_irb->mt;
struct gl_renderbuffer_attachment *depth_att = &fb->Attachment[BUFFER_DEPTH];
if (brw->gen < 6)
return false;
if (!intel_renderbuffer_has_hiz(depth_irb))
return false;
/* We only handle full buffer clears -- otherwise you'd have to track whether
* a previous clear had happened at a different clear value and resolve it
* first.
*/
if ((ctx->Scissor.EnableFlags & 1) && !noop_scissor(ctx, fb)) {
perf_debug("Failed to fast clear %dx%d depth because of scissors. "
"Possible 5%% performance win if avoided.\n",
mt->logical_width0, mt->logical_height0);
return false;
}
uint32_t depth_clear_value;
switch (mt->format) {
case MESA_FORMAT_Z32_FLOAT_S8X24_UINT:
case MESA_FORMAT_Z24_UNORM_S8_UINT:
/* From the Sandy Bridge PRM, volume 2 part 1, page 314:
*
* "[DevSNB+]: Several cases exist where Depth Buffer Clear cannot be
* enabled (the legacy method of clearing must be performed):
*
* - If the depth buffer format is D32_FLOAT_S8X24_UINT or
* D24_UNORM_S8_UINT.
*/
return false;
case MESA_FORMAT_Z_FLOAT32:
depth_clear_value = float_as_int(ctx->Depth.Clear);
break;
case MESA_FORMAT_Z_UNORM16:
/* From the Sandy Bridge PRM, volume 2 part 1, page 314:
*
* "[DevSNB+]: Several cases exist where Depth Buffer Clear cannot be
* enabled (the legacy method of clearing must be performed):
*
* - DevSNB{W/A}]: When depth buffer format is D16_UNORM and the
* width of the map (LOD0) is not multiple of 16, fast clear
* optimization must be disabled.
*/
if (brw->gen == 6 &&
(minify(mt->physical_width0,
depth_irb->mt_level - mt->first_level) % 16) != 0)
return false;
/* FALLTHROUGH */
default:
if (brw->gen >= 8)
depth_clear_value = float_as_int(ctx->Depth.Clear);
else
depth_clear_value = fb->_DepthMax * ctx->Depth.Clear;
break;
}
/* If we're clearing to a new clear value, then we need to resolve any clear
* flags out of the HiZ buffer into the real depth buffer.
*/
if (mt->depth_clear_value != depth_clear_value) {
intel_miptree_all_slices_resolve_depth(brw, mt);
mt->depth_clear_value = depth_clear_value;
}
/* From the Sandy Bridge PRM, volume 2 part 1, page 313:
*
* "If other rendering operations have preceded this clear, a
* PIPE_CONTROL with write cache flush enabled and Z-inhibit disabled
* must be issued before the rectangle primitive used for the depth
* buffer clear operation.
*/
brw_emit_mi_flush(brw);
if (fb->MaxNumLayers > 0) {
for (unsigned layer = 0; layer < depth_irb->layer_count; layer++) {
intel_hiz_exec(brw, mt, depth_irb->mt_level,
depth_irb->mt_layer + layer,
GEN6_HIZ_OP_DEPTH_CLEAR);
}
} else {
intel_hiz_exec(brw, mt, depth_irb->mt_level, depth_irb->mt_layer,
GEN6_HIZ_OP_DEPTH_CLEAR);
}
if (brw->gen == 6) {
/* From the Sandy Bridge PRM, volume 2 part 1, page 314:
*
* "DevSNB, DevSNB-B{W/A}]: Depth buffer clear pass must be followed
* by a PIPE_CONTROL command with DEPTH_STALL bit set and Then
* followed by Depth FLUSH'
*/
brw_emit_mi_flush(brw);
}
/* Now, the HiZ buffer contains data that needs to be resolved to the depth
* buffer.
*/
intel_renderbuffer_att_set_needs_depth_resolve(depth_att);
return true;
}
/**
* Called via ctx->Driver.GenerateMipmap()
* Note: We don't yet support 3D textures, 1D/2D array textures or texture
* borders.
*/
void
_mesa_meta_GenerateMipmap(struct gl_context *ctx, GLenum target,
struct gl_texture_object *texObj)
{
struct gen_mipmap_state *mipmap = &ctx->Meta->Mipmap;
struct vertex verts[4];
const GLuint baseLevel = texObj->BaseLevel;
const GLuint maxLevel = texObj->MaxLevel;
const GLint maxLevelSave = texObj->MaxLevel;
const GLboolean genMipmapSave = texObj->GenerateMipmap;
const GLuint currentTexUnitSave = ctx->Texture.CurrentUnit;
const GLboolean use_glsl_version = ctx->Extensions.ARB_vertex_shader &&
ctx->Extensions.ARB_fragment_shader;
GLenum faceTarget;
GLuint dstLevel;
GLuint samplerSave;
GLint swizzle[4];
GLboolean swizzleSaved = GL_FALSE;
if (fallback_required(ctx, target, texObj)) {
_mesa_generate_mipmap(ctx, target, texObj);
return;
}
if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X &&
target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z) {
faceTarget = target;
target = GL_TEXTURE_CUBE_MAP;
} else {
faceTarget = target;
}
_mesa_meta_begin(ctx, MESA_META_ALL & ~MESA_META_DRAW_BUFFERS);
/* Choose between glsl version and fixed function version of
* GenerateMipmap function.
*/
if (use_glsl_version) {
_mesa_meta_setup_vertex_objects(&mipmap->VAO, &mipmap->VBO, true,
2, 4, 0);
_mesa_meta_setup_blit_shader(ctx, target, false, &mipmap->shaders);
} else {
_mesa_meta_setup_ff_tnl_for_blit(&mipmap->VAO, &mipmap->VBO, 3);
_mesa_set_enable(ctx, target, GL_TRUE);
}
samplerSave = ctx->Texture.Unit[ctx->Texture.CurrentUnit].Sampler ?
ctx->Texture.Unit[ctx->Texture.CurrentUnit].Sampler->Name : 0;
if (currentTexUnitSave != 0)
glBindTexture(target, texObj->Name);
if (!mipmap->Sampler) {
glGenSamplers(1, &mipmap->Sampler);
glBindSampler(ctx->Texture.CurrentUnit, mipmap->Sampler);
glSamplerParameteri(mipmap->Sampler,
GL_TEXTURE_MIN_FILTER,
GL_LINEAR_MIPMAP_LINEAR);
glSamplerParameteri(mipmap->Sampler, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glSamplerParameteri(mipmap->Sampler, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glSamplerParameteri(mipmap->Sampler, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
glSamplerParameteri(mipmap->Sampler, GL_TEXTURE_WRAP_R, GL_CLAMP_TO_EDGE);
/* We don't want to encode or decode sRGB values; treat them as linear.
* This is not technically correct for GLES3 but we don't get any API
* error at the moment.
*/
if (ctx->Extensions.EXT_texture_sRGB_decode) {
glSamplerParameteri(mipmap->Sampler, GL_TEXTURE_SRGB_DECODE_EXT,
GL_SKIP_DECODE_EXT);
}
} else {
glBindSampler(ctx->Texture.CurrentUnit, mipmap->Sampler);
}
assert(mipmap->FBO != 0);
glBindFramebuffer(GL_FRAMEBUFFER, mipmap->FBO);
glTexParameteri(target, GL_GENERATE_MIPMAP, GL_FALSE);
// if (texObj->_Swizzle != SWIZZLE_NOOP) {
// static const GLint swizzleNoop[4] = { GL_RED, GL_GREEN, GL_BLUE, GL_ALPHA };
// memcpy(swizzle, texObj->Swizzle, sizeof(swizzle));
// swizzleSaved = GL_TRUE;
// glTexParameteriv(target, GL_TEXTURE_SWIZZLE_RGBA, swizzleNoop);
// }
/* Silence valgrind warnings about reading uninitialized stack. */
memset(verts, 0, sizeof(verts));
/* setup vertex positions */
verts[0].x = -1.0F;
verts[0].y = -1.0F;
verts[1].x = 1.0F;
verts[1].y = -1.0F;
verts[2].x = 1.0F;
verts[2].y = 1.0F;
verts[3].x = -1.0F;
verts[3].y = 1.0F;
/* texture is already locked, unlock now */
_mesa_unlock_texture(ctx, texObj);
for (dstLevel = baseLevel + 1; dstLevel <= maxLevel; dstLevel++) {
const struct gl_texture_image *srcImage;
struct gl_texture_image *dstImage;
const GLuint srcLevel = dstLevel - 1;
GLuint layer;
GLsizei srcWidth, srcHeight, srcDepth;
GLsizei dstWidth, dstHeight, dstDepth;
srcImage = _mesa_select_tex_image(texObj, faceTarget, srcLevel);
assert(srcImage->Border == 0);
/* src size */
srcWidth = srcImage->Width;
if (target == GL_TEXTURE_1D_ARRAY) {
srcHeight = 1;
srcDepth = srcImage->Height;
} else {
srcHeight = srcImage->Height;
srcDepth = srcImage->Depth;
}
/* new dst size */
dstWidth = minify(srcWidth, 1);
dstHeight = minify(srcHeight, 1);
// dstDepth = target == GL_TEXTURE_3D ? minify(srcDepth, 1) : srcDepth;
dstDepth = srcDepth;
if (dstWidth == srcWidth &&
dstHeight == srcHeight &&
dstDepth == srcDepth) {
/* all done */
break;
}
/* Allocate storage for the destination mipmap image(s) */
/* Set MaxLevel large enough to hold the new level when we allocate it */
glTexParameteri(target, GL_TEXTURE_MAX_LEVEL, dstLevel);
if (!prepare_mipmap_level(ctx, texObj, dstLevel,
dstWidth, dstHeight, dstDepth,
srcImage->InternalFormat,
srcImage->TexFormat)) {
/* All done. We either ran out of memory or we would go beyond the
* last valid level of an immutable texture if we continued.
*/
break;
}
dstImage = _mesa_select_tex_image(texObj, faceTarget, dstLevel);
/* limit minification to src level */
glTexParameteri(target, GL_TEXTURE_MAX_LEVEL, srcLevel);
/* setup viewport */
_mesa_set_viewport(ctx, 0, 0, 0, dstWidth, dstHeight);
glDrawBuffer(GL_COLOR_ATTACHMENT0);
for (layer = 0; layer < dstDepth; ++layer) {
/* Setup texture coordinates */
_mesa_meta_setup_texture_coords(faceTarget,
layer,
0, 0, 1, /* width, height never used here */
verts[0].tex,
verts[1].tex,
verts[2].tex,
verts[3].tex);
/* upload vertex data */
glBufferData(GL_ARRAY_BUFFER, sizeof(verts),
verts, GL_DYNAMIC_DRAW);
_mesa_meta_bind_fbo_image(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, dstImage, layer);
/* sanity check */
if (glCheckFramebufferStatus(GL_FRAMEBUFFER) !=
GL_FRAMEBUFFER_COMPLETE) {
_mesa_problem(ctx, "Unexpected incomplete framebuffer in "
"_mesa_meta_GenerateMipmap()");
break;
}
assert(dstWidth == ctx->DrawBuffer->Width);
if (target == GL_TEXTURE_1D_ARRAY) {
assert(dstHeight == 1);
} else {
assert(dstHeight == ctx->DrawBuffer->Height);
}
glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
}
}
_mesa_lock_texture(ctx, texObj); /* relock */
glBindSampler(ctx->Texture.CurrentUnit, samplerSave);
_mesa_meta_end(ctx);
glTexParameteri(target, GL_TEXTURE_MAX_LEVEL, maxLevelSave);
if (genMipmapSave)
glTexParameteri(target, GL_GENERATE_MIPMAP, genMipmapSave);
// if (swizzleSaved)
// glTexParameteriv(target, GL_TEXTURE_SWIZZLE_RGBA, swizzle);
}
void
brw_miptree_layout(struct intel_context *intel, struct intel_mipmap_tree *mt)
{
switch (mt->target) {
case GL_TEXTURE_CUBE_MAP_ARRAY:
brw_miptree_layout_texture_array(intel, mt);
break;
case GL_TEXTURE_CUBE_MAP:
if (intel->gen >= 5) {
/* On Ironlake, cube maps are finally represented as just a series of
* MIPLAYOUT_BELOW 2D textures (like 2D texture arrays), separated by a
* pitch of qpitch rows, where qpitch is defined by the equation given
* in Volume 1 of the BSpec.
*/
brw_miptree_layout_texture_array(intel, mt);
break;
}
assert(mt->physical_depth0 == 6);
/* FALLTHROUGH */
case GL_TEXTURE_3D: {
GLuint width = mt->physical_width0;
GLuint height = mt->physical_height0;
GLuint depth = mt->physical_depth0;
GLuint pack_x_pitch, pack_x_nr;
GLuint pack_y_pitch;
GLuint level;
mt->total_height = 0;
if (mt->compressed) {
mt->total_width = ALIGN(width, mt->align_w);
pack_y_pitch = (height + 3) / 4;
} else {
mt->total_width = mt->physical_width0;
pack_y_pitch = ALIGN(mt->physical_height0, mt->align_h);
}
pack_x_pitch = width;
pack_x_nr = 1;
for (level = mt->first_level ; level <= mt->last_level ; level++) {
GLint x = 0;
GLint y = 0;
GLint q, j;
intel_miptree_set_level_info(mt, level,
0, mt->total_height,
width, height, depth);
for (q = 0; q < depth; /* empty */) {
for (j = 0; j < pack_x_nr && q < depth; j++, q++) {
intel_miptree_set_image_offset(mt, level, q, x, y);
x += pack_x_pitch;
}
if (x > mt->total_width)
mt->total_width = x;
x = 0;
y += pack_y_pitch;
}
mt->total_height += y;
width = minify(width);
height = minify(height);
if (mt->target == GL_TEXTURE_3D)
depth = minify(depth);
if (mt->compressed) {
pack_y_pitch = (height + 3) / 4;
if (pack_x_pitch > ALIGN(width, mt->align_w)) {
pack_x_pitch = ALIGN(width, mt->align_w);
pack_x_nr <<= 1;
}
} else {
pack_x_nr <<= 1;
if (pack_x_pitch > 4) {
pack_x_pitch >>= 1;
}
if (pack_y_pitch > 2) {
pack_y_pitch >>= 1;
pack_y_pitch = ALIGN(pack_y_pitch, mt->align_h);
}
}
}
/* The 965's sampler lays cachelines out according to how accesses
* in the texture surfaces run, so they may be "vertical" through
* memory. As a result, the docs say in Surface Padding Requirements:
* Sampling Engine Surfaces that two extra rows of padding are required.
*/
if (mt->target == GL_TEXTURE_CUBE_MAP)
mt->total_height += 2;
break;
}
y += pack_y_pitch;
}
mt->total_height += y;
if (pack_x_pitch > 4) {
pack_x_pitch >>= 1;
pack_x_nr <<= 1;
assert(pack_x_pitch * pack_x_nr <= mt->total_width);
}
if (pack_y_pitch > 2) {
pack_y_pitch >>= 1;
}
width = minify(width);
height = minify(height);
depth = minify(depth);
}
}
void
i945_miptree_layout(struct intel_mipmap_tree * mt)
{
switch (mt->target) {
case GL_TEXTURE_CUBE_MAP:
if (mt->compressed)
i945_miptree_layout_cube(mt);
else
i915_miptree_layout_cube(mt);
break;
static void
brw_miptree_layout_2d(struct intel_mipmap_tree *mt)
{
unsigned x = 0;
unsigned y = 0;
unsigned width = mt->physical_width0;
unsigned height = mt->physical_height0;
unsigned depth = mt->physical_depth0; /* number of array layers. */
mt->total_width = mt->physical_width0;
if (mt->compressed) {
mt->total_width = ALIGN(mt->physical_width0, mt->align_w);
}
/* May need to adjust width to accomodate the placement of
* the 2nd mipmap. This occurs when the alignment
* constraints of mipmap placement push the right edge of the
* 2nd mipmap out past the width of its parent.
*/
if (mt->first_level != mt->last_level) {
unsigned mip1_width;
if (mt->compressed) {
mip1_width = ALIGN(minify(mt->physical_width0, 1), mt->align_w) +
ALIGN(minify(mt->physical_width0, 2), mt->align_w);
} else {
mip1_width = ALIGN(minify(mt->physical_width0, 1), mt->align_w) +
minify(mt->physical_width0, 2);
}
if (mip1_width > mt->total_width) {
mt->total_width = mip1_width;
}
}
mt->total_height = 0;
for (unsigned level = mt->first_level; level <= mt->last_level; level++) {
unsigned img_height;
intel_miptree_set_level_info(mt, level, x, y, width,
height, depth);
img_height = ALIGN(height, mt->align_h);
if (mt->compressed)
img_height /= mt->align_h;
/* Because the images are packed better, the final offset
* might not be the maximal one:
*/
mt->total_height = MAX2(mt->total_height, y + img_height);
/* Layout_below: step right after second mipmap.
*/
if (level == mt->first_level + 1) {
x += ALIGN(width, mt->align_w);
} else {
y += img_height;
}
width = minify(width, 1);
height = minify(height, 1);
}
}
GLboolean brw_miptree_layout(struct intel_context *intel,
struct intel_mipmap_tree *mt,
uint32_t tiling)
{
/* XXX: these vary depending on image format: */
/* GLint align_w = 4; */
switch (mt->target) {
case GL_TEXTURE_CUBE_MAP:
if (intel->gen == 5) {
GLuint align_h = 2;
GLuint level;
GLuint qpitch = 0;
int h0, h1, q;
/* On Ironlake, cube maps are finally represented as just a series
* of MIPLAYOUT_BELOW 2D textures (like 2D texture arrays), separated
* by a pitch of qpitch rows, where qpitch is defined by the equation
* given in Volume 1 of the BSpec.
*/
h0 = ALIGN(mt->height0, align_h);
h1 = ALIGN(minify(h0), align_h);
qpitch = (h0 + h1 + 11 * align_h);
if (mt->compressed)
qpitch /= 4;
i945_miptree_layout_2d(intel, mt, tiling, 6);
for (level = mt->first_level; level <= mt->last_level; level++) {
for (q = 0; q < 6; q++) {
intel_miptree_set_image_offset(mt, level, q, 0, q * qpitch);
}
}
mt->total_height = qpitch * 6;
break;
}
case GL_TEXTURE_3D: {
GLuint width = mt->width0;
GLuint height = mt->height0;
GLuint depth = mt->depth0;
GLuint pack_x_pitch, pack_x_nr;
GLuint pack_y_pitch;
GLuint level;
GLuint align_h = 2;
GLuint align_w = 4;
mt->total_height = 0;
intel_get_texture_alignment_unit(mt->internal_format, &align_w, &align_h);
if (mt->compressed) {
mt->pitch = ALIGN(width, align_w);
pack_y_pitch = (height + 3) / 4;
} else {
mt->pitch = intel_miptree_pitch_align (intel, mt, tiling, mt->width0);
pack_y_pitch = ALIGN(mt->height0, align_h);
}
pack_x_pitch = width;
pack_x_nr = 1;
for (level = mt->first_level ; level <= mt->last_level ; level++) {
GLuint nr_images = mt->target == GL_TEXTURE_3D ? depth : 6;
GLint x = 0;
GLint y = 0;
GLint q, j;
intel_miptree_set_level_info(mt, level, nr_images,
0, mt->total_height,
width, height, depth);
for (q = 0; q < nr_images;) {
for (j = 0; j < pack_x_nr && q < nr_images; j++, q++) {
intel_miptree_set_image_offset(mt, level, q, x, y);
x += pack_x_pitch;
}
x = 0;
y += pack_y_pitch;
}
mt->total_height += y;
width = minify(width);
height = minify(height);
depth = minify(depth);
if (mt->compressed) {
pack_y_pitch = (height + 3) / 4;
if (pack_x_pitch > ALIGN(width, align_w)) {
pack_x_pitch = ALIGN(width, align_w);
pack_x_nr <<= 1;
}
} else {
if (pack_x_pitch > 4) {
pack_x_pitch >>= 1;
pack_x_nr <<= 1;
assert(pack_x_pitch * pack_x_nr <= mt->pitch);
}
if (pack_y_pitch > 2) {
pack_y_pitch >>= 1;
pack_y_pitch = ALIGN(pack_y_pitch, align_h);
}
}
}
/* The 965's sampler lays cachelines out according to how accesses
* in the texture surfaces run, so they may be "vertical" through
* memory. As a result, the docs say in Surface Padding Requirements:
* Sampling Engine Surfaces that two extra rows of padding are required.
* We don't know of similar requirements for pre-965, but given that
* those docs are silent on padding requirements in general, let's play
* it safe.
*/
if (mt->target == GL_TEXTURE_CUBE_MAP)
mt->total_height += 2;
break;
}
GLboolean
i915_miptree_layout(struct intel_context *intel, struct intel_mipmap_tree * mt)
{
GLint level;
switch (mt->target) {
case GL_TEXTURE_CUBE_MAP:{
const GLuint dim = mt->width0;
GLuint face;
GLuint lvlWidth = mt->width0, lvlHeight = mt->height0;
assert(lvlWidth == lvlHeight); /* cubemap images are square */
/* double pitch for cube layouts */
mt->pitch = intel_miptree_pitch_align (intel, mt, dim * 2);
mt->total_height = dim * 4;
for (level = mt->first_level; level <= mt->last_level; level++) {
intel_miptree_set_level_info(mt, level, 6,
0, 0,
/*OLD: mt->pitch, mt->total_height,*/
lvlWidth, lvlHeight,
1);
lvlWidth /= 2;
lvlHeight /= 2;
}
for (face = 0; face < 6; face++) {
GLuint x = initial_offsets[face][0] * dim;
GLuint y = initial_offsets[face][1] * dim;
GLuint d = dim;
for (level = mt->first_level; level <= mt->last_level; level++) {
intel_miptree_set_image_offset(mt, level, face, x, y);
if (d == 0)
_mesa_printf("cube mipmap %d/%d (%d..%d) is 0x0\n",
face, level, mt->first_level, mt->last_level);
d >>= 1;
x += step_offsets[face][0] * d;
y += step_offsets[face][1] * d;
}
}
break;
}
case GL_TEXTURE_3D:{
GLuint width = mt->width0;
GLuint height = mt->height0;
GLuint depth = mt->depth0;
GLuint stack_height = 0;
/* Calculate the size of a single slice.
*/
mt->pitch = intel_miptree_pitch_align (intel, mt, mt->width0);
/* XXX: hardware expects/requires 9 levels at minimum.
*/
for (level = mt->first_level; level <= MAX2(8, mt->last_level);
level++) {
intel_miptree_set_level_info(mt, level, depth, 0, mt->total_height,
width, height, depth);
stack_height += MAX2(2, height);
width = minify(width);
height = minify(height);
depth = minify(depth);
}
/* Fixup depth image_offsets:
*/
depth = mt->depth0;
for (level = mt->first_level; level <= mt->last_level; level++) {
GLuint i;
for (i = 0; i < depth; i++)
intel_miptree_set_image_offset(mt, level, i,
0, i * stack_height);
depth = minify(depth);
}
/* Multiply slice size by texture depth for total size. It's
* remarkable how wasteful of memory the i915 texture layouts
* are. They are largely fixed in the i945.
*/
mt->total_height = stack_height * mt->depth0;
break;
}
default:{
GLuint width = mt->width0;
GLuint height = mt->height0;
GLuint img_height;
mt->pitch = intel_miptree_pitch_align (intel, mt, mt->width0);
mt->total_height = 0;
for (level = mt->first_level; level <= mt->last_level; level++) {
intel_miptree_set_level_info(mt, level, 1,
0, mt->total_height,
width, height, 1);
if (mt->compressed)
img_height = MAX2(1, height / 4);
else
img_height = (MAX2(2, height) + 1) & ~1;
mt->total_height += img_height;
width = minify(width);
height = minify(height);
}
break;
}
}
DBG("%s: %dx%dx%d - sz 0x%x\n", __FUNCTION__,
mt->pitch,
mt->total_height, mt->cpp, mt->pitch * mt->total_height * mt->cpp);
return GL_TRUE;
}
static void
brw_miptree_layout_2d(struct intel_mipmap_tree *mt)
{
unsigned x = 0;
unsigned y = 0;
unsigned width = mt->physical_width0;
unsigned height = mt->physical_height0;
unsigned depth = mt->physical_depth0; /* number of array layers. */
unsigned int bw, bh;
_mesa_get_format_block_size(mt->format, &bw, &bh);
mt->total_width = mt->physical_width0;
if (mt->compressed)
mt->total_width = ALIGN_NPOT(mt->total_width, bw);
/* May need to adjust width to accommodate the placement of
* the 2nd mipmap. This occurs when the alignment
* constraints of mipmap placement push the right edge of the
* 2nd mipmap out past the width of its parent.
*/
if (mt->first_level != mt->last_level) {
unsigned mip1_width;
if (mt->compressed) {
mip1_width = ALIGN_NPOT(minify(mt->physical_width0, 1), mt->align_w) +
ALIGN_NPOT(minify(mt->physical_width0, 2), bw);
} else {
mip1_width = ALIGN_NPOT(minify(mt->physical_width0, 1), mt->align_w) +
minify(mt->physical_width0, 2);
}
if (mip1_width > mt->total_width) {
mt->total_width = mip1_width;
}
}
mt->total_width /= bw;
mt->total_height = 0;
for (unsigned level = mt->first_level; level <= mt->last_level; level++) {
unsigned img_height;
intel_miptree_set_level_info(mt, level, x, y, depth);
img_height = ALIGN_NPOT(height, mt->align_h);
if (mt->compressed)
img_height /= bh;
if (mt->array_layout == ALL_SLICES_AT_EACH_LOD) {
/* Compact arrays with separated miplevels */
img_height *= depth;
}
/* Because the images are packed better, the final offset
* might not be the maximal one:
*/
mt->total_height = MAX2(mt->total_height, y + img_height);
/* Layout_below: step right after second mipmap.
*/
if (level == mt->first_level + 1) {
x += ALIGN_NPOT(width, mt->align_w) / bw;
} else {
y += img_height;
}
width = minify(width, 1);
height = minify(height, 1);
if (mt->target == GL_TEXTURE_3D)
depth = minify(depth, 1);
}
}
/**
* The GenerateMipmap() driver hook.
*/
void
brw_generate_mipmap(struct gl_context *ctx, GLenum target,
struct gl_texture_object *tex_obj)
{
struct brw_context *brw = brw_context(ctx);
struct gen_device_info *devinfo = &brw->screen->devinfo;
struct intel_texture_object *intel_obj = intel_texture_object(tex_obj);
const unsigned base_level = tex_obj->BaseLevel;
unsigned last_level, first_layer, last_layer;
/* Blorp doesn't handle combined depth/stencil surfaces on Gen4-5 yet. */
if (devinfo->gen <= 5 &&
(tex_obj->Image[0][base_level]->_BaseFormat == GL_DEPTH_COMPONENT ||
tex_obj->Image[0][base_level]->_BaseFormat == GL_DEPTH_STENCIL)) {
_mesa_meta_GenerateMipmap(ctx, target, tex_obj);
return;
}
/* find expected last mipmap level to generate */
last_level = _mesa_compute_num_levels(ctx, tex_obj, target) - 1;
if (last_level == 0)
return;
/* The texture isn't in a "complete" state yet so set the expected
* last_level here; we're not going through normal texture validation.
*/
intel_obj->_MaxLevel = last_level;
if (!tex_obj->Immutable) {
_mesa_prepare_mipmap_levels(ctx, tex_obj, base_level, last_level);
/* At this point, memory for all the texture levels has been
* allocated. However, the base level image may be in one resource
* while the subsequent/smaller levels may be in another resource.
* Finalizing the texture will copy the base images from the former
* resource to the latter.
*
* After this, we'll have all mipmap levels in one resource.
*/
intel_finalize_mipmap_tree(brw, tex_obj);
}
struct intel_mipmap_tree *mt = intel_obj->mt;
if (!mt) {
_mesa_error(ctx, GL_OUT_OF_MEMORY, "mipmap generation");
return;
}
const mesa_format format = intel_obj->_Format;
/* Fall back to the CPU for non-renderable cases.
*
* TODO: 3D textures require blending data from multiple slices,
* which means we need custom shaders. For now, fall back.
*/
if (!brw->mesa_format_supports_render[format] || target == GL_TEXTURE_3D) {
_mesa_generate_mipmap(ctx, target, tex_obj);
return;
}
const struct isl_extent4d *base_size = &mt->surf.logical_level0_px;
if (mt->target == GL_TEXTURE_CUBE_MAP) {
first_layer = _mesa_tex_target_to_face(target);
last_layer = first_layer;
} else {
first_layer = 0;
last_layer = base_size->array_len - 1;
}
/* The GL_EXT_texture_sRGB_decode extension's issues section says:
*
* "10) How is mipmap generation of sRGB textures affected by the
* TEXTURE_SRGB_DECODE_EXT parameter?
*
* RESOLVED: When the TEXTURE_SRGB_DECODE parameter is DECODE_EXT
* for an sRGB texture, mipmap generation should decode sRGB texels
* to a linear RGB color space, perform downsampling, then encode
* back to an sRGB color space. (Issue 24 in the EXT_texture_sRGB
* specification provides a rationale for why.) When the parameter
* is SKIP_DECODE_EXT instead, mipmap generation skips the encode
* and decode steps during mipmap generation. By skipping the
* encode and decode steps, sRGB mipmap generation should match
* the mipmap generation for a non-sRGB texture."
*/
bool do_srgb = tex_obj->Sampler.sRGBDecode == GL_DECODE_EXT;
for (unsigned dst_level = base_level + 1;
dst_level <= last_level;
dst_level++) {
const unsigned src_level = dst_level - 1;
for (unsigned layer = first_layer; layer <= last_layer; layer++) {
brw_blorp_blit_miptrees(brw, mt, src_level, layer, format,
SWIZZLE_XYZW, mt, dst_level, layer, format,
0, 0,
minify(base_size->width, src_level),
minify(base_size->height, src_level),
0, 0,
minify(base_size->width, dst_level),
minify(base_size->height, dst_level),
GL_LINEAR, false, false,
do_srgb, do_srgb);
}
}
}
GLboolean
i945_miptree_layout(struct intel_context *intel, struct intel_mipmap_tree * mt)
{
GLint level;
switch (mt->target) {
case GL_TEXTURE_CUBE_MAP:{
const GLuint dim = mt->width0;
GLuint face;
GLuint lvlWidth = mt->width0, lvlHeight = mt->height0;
assert(lvlWidth == lvlHeight); /* cubemap images are square */
/* Depending on the size of the largest images, pitch can be
* determined either by the old-style packing of cubemap faces,
* or the final row of 4x4, 2x2 and 1x1 faces below this.
*/
if (dim > 32)
mt->pitch = intel_miptree_pitch_align (intel, mt, dim);
else
mt->pitch = 14 * 8;
mt->total_height = dim * 4 + 4;
/* Set all the levels to effectively occupy the whole rectangular region.
*/
for (level = mt->first_level; level <= mt->last_level; level++) {
intel_miptree_set_level_info(mt, level, 6,
0, 0,
lvlWidth, lvlHeight, 1);
lvlWidth /= 2;
lvlHeight /= 2;
}
for (face = 0; face < 6; face++) {
GLuint x = initial_offsets[face][0] * dim;
GLuint y = initial_offsets[face][1] * dim;
GLuint d = dim;
if (dim == 4 && face >= 4) {
y = mt->total_height - 4;
x = (face - 4) * 8;
}
else if (dim < 4 && (face > 0 || mt->first_level > 0)) {
y = mt->total_height - 4;
x = face * 8;
}
for (level = mt->first_level; level <= mt->last_level; level++) {
intel_miptree_set_image_offset(mt, level, face, x, y);
d >>= 1;
switch (d) {
case 4:
switch (face) {
case FACE_POS_X:
case FACE_NEG_X:
x += step_offsets[face][0] * d;
y += step_offsets[face][1] * d;
break;
case FACE_POS_Y:
case FACE_NEG_Y:
y += 12;
x -= 8;
break;
case FACE_POS_Z:
case FACE_NEG_Z:
y = mt->total_height - 4;
x = (face - 4) * 8;
break;
}
case 2:
y = mt->total_height - 4;
x = 16 + face * 8;
break;
case 1:
x += 48;
break;
default:
x += step_offsets[face][0] * d;
y += step_offsets[face][1] * d;
break;
}
}
}
break;
}
case GL_TEXTURE_3D:{
GLuint width = mt->width0;
GLuint height = mt->height0;
GLuint depth = mt->depth0;
GLuint pack_x_pitch, pack_x_nr;
GLuint pack_y_pitch;
GLuint level;
mt->pitch = intel_miptree_pitch_align (intel, mt, mt->width0);
mt->total_height = 0;
pack_y_pitch = MAX2(mt->height0, 2);
pack_x_pitch = mt->pitch;
pack_x_nr = 1;
for (level = mt->first_level; level <= mt->last_level; level++) {
GLuint nr_images = mt->target == GL_TEXTURE_3D ? depth : 6;
GLint x = 0;
GLint y = 0;
GLint q, j;
intel_miptree_set_level_info(mt, level, nr_images,
0, mt->total_height,
width, height, depth);
for (q = 0; q < nr_images;) {
for (j = 0; j < pack_x_nr && q < nr_images; j++, q++) {
intel_miptree_set_image_offset(mt, level, q, x, y);
x += pack_x_pitch;
}
x = 0;
y += pack_y_pitch;
}
mt->total_height += y;
if (pack_x_pitch > 4) {
pack_x_pitch >>= 1;
pack_x_nr <<= 1;
assert(pack_x_pitch * pack_x_nr <= mt->pitch);
}
if (pack_y_pitch > 2) {
pack_y_pitch >>= 1;
}
width = minify(width);
height = minify(height);
depth = minify(depth);
}
break;
}
