--- /dev/null
+
+#include "main/macros.h"
+#include "main/mtypes.h"
+#include "main/enums.h"
+#include "main/bufferobj.h"
+#include "main/context.h"
+#include "main/formats.h"
+#include "main/glformats.h"
+#include "main/image.h"
+#include "main/pbo.h"
+#include "main/renderbuffer.h"
+#include "main/texcompress.h"
+#include "main/texgetimage.h"
+#include "main/texobj.h"
+#include "main/teximage.h"
+#include "main/texstore.h"
+
+#include "drivers/common/meta.h"
+
+#include "intel_mipmap_tree.h"
+#include "intel_buffer_objects.h"
+#include "intel_batchbuffer.h"
+#include "intel_tex.h"
+#include "intel_blit.h"
+#include "intel_fbo.h"
+#include "intel_image.h"
+#include "intel_tiled_memcpy.h"
+#include "brw_context.h"
+
+#define FILE_DEBUG_FLAG DEBUG_TEXTURE
+
+/* Make sure one doesn't end up shrinking base level zero unnecessarily.
+ * Determining the base level dimension by shifting higher level dimension
+ * ends up in off-by-one value in case base level has NPOT size (for example,
+ * 293 != 146 << 1).
+ * Choose the original base level dimension when shifted dimensions agree.
+ * Otherwise assume real resize is intended and use the new shifted value.
+ */
+static unsigned
+get_base_dim(unsigned old_base_dim, unsigned new_level_dim, unsigned level)
+{
+ const unsigned old_level_dim = old_base_dim >> level;
+ const unsigned new_base_dim = new_level_dim << level;
+
+ return old_level_dim == new_level_dim ? old_base_dim : new_base_dim;
+}
+
+/* Work back from the specified level of the image to the baselevel and create a
+ * miptree of that size.
+ */
+struct intel_mipmap_tree *
+intel_miptree_create_for_teximage(struct brw_context *brw,
+ struct intel_texture_object *intelObj,
+ struct intel_texture_image *intelImage,
+ uint32_t layout_flags)
+{
+ GLuint lastLevel;
+ int width, height, depth;
+ unsigned old_width = 0, old_height = 0, old_depth = 0;
+ const struct intel_mipmap_tree *old_mt = intelObj->mt;
+ const unsigned level = intelImage->base.Base.Level;
+
+ intel_get_image_dims(&intelImage->base.Base, &width, &height, &depth);
+
+ if (old_mt && old_mt->surf.size > 0) {
+ old_width = old_mt->surf.logical_level0_px.width;
+ old_height = old_mt->surf.logical_level0_px.height;
+ old_depth = old_mt->surf.dim == ISL_SURF_DIM_3D ?
+ old_mt->surf.logical_level0_px.depth :
+ old_mt->surf.logical_level0_px.array_len;
+ } else if (old_mt) {
+ old_width = old_mt->logical_width0;
+ old_height = old_mt->logical_height0;
+ old_depth = old_mt->logical_depth0;
+ }
+
+ DBG("%s\n", __func__);
+
+ /* Figure out image dimensions at start level. */
+ switch(intelObj->base.Target) {
+ case GL_TEXTURE_2D_MULTISAMPLE:
+ case GL_TEXTURE_2D_MULTISAMPLE_ARRAY:
+ case GL_TEXTURE_RECTANGLE:
+ case GL_TEXTURE_EXTERNAL_OES:
+ assert(level == 0);
+ break;
+ case GL_TEXTURE_3D:
+ depth = old_mt ? get_base_dim(old_depth, depth, level) :
+ depth << level;
+ /* Fall through */
+ case GL_TEXTURE_2D:
+ case GL_TEXTURE_2D_ARRAY:
+ case GL_TEXTURE_CUBE_MAP:
+ case GL_TEXTURE_CUBE_MAP_ARRAY:
+ height = old_mt ? get_base_dim(old_height, height, level) :
+ height << level;
+ /* Fall through */
+ case GL_TEXTURE_1D:
+ case GL_TEXTURE_1D_ARRAY:
+ width = old_mt ? get_base_dim(old_width, width, level) :
+ width << level;
+ break;
+ default:
+ unreachable("Unexpected target");
+ }
+
+ /* Guess a reasonable value for lastLevel. This is probably going
+ * to be wrong fairly often and might mean that we have to look at
+ * resizable buffers, or require that buffers implement lazy
+ * pagetable arrangements.
+ */
+ if ((intelObj->base.Sampler.MinFilter == GL_NEAREST ||
+ intelObj->base.Sampler.MinFilter == GL_LINEAR) &&
+ intelImage->base.Base.Level == 0 &&
+ !intelObj->base.GenerateMipmap) {
+ lastLevel = 0;
+ } else {
+ lastLevel = _mesa_get_tex_max_num_levels(intelObj->base.Target,
+ width, height, depth) - 1;
+ }
+
+ return intel_miptree_create(brw,
+ intelObj->base.Target,
+ intelImage->base.Base.TexFormat,
+ 0,
+ lastLevel,
+ width,
+ height,
+ depth,
+ intelImage->base.Base.NumSamples,
+ layout_flags | MIPTREE_LAYOUT_TILING_ANY);
+}
+
+static void
+intelTexImage(struct gl_context * ctx,
+ GLuint dims,
+ struct gl_texture_image *texImage,
+ GLenum format, GLenum type, const void *pixels,
+ const struct gl_pixelstore_attrib *unpack)
+{
+ struct intel_texture_image *intelImage = intel_texture_image(texImage);
+ bool ok;
+
+ bool tex_busy = intelImage->mt && brw_bo_busy(intelImage->mt->bo);
+
+ DBG("%s mesa_format %s target %s format %s type %s level %d %dx%dx%d\n",
+ __func__, _mesa_get_format_name(texImage->TexFormat),
+ _mesa_enum_to_string(texImage->TexObject->Target),
+ _mesa_enum_to_string(format), _mesa_enum_to_string(type),
+ texImage->Level, texImage->Width, texImage->Height, texImage->Depth);
+
+ /* Allocate storage for texture data. */
+ if (!ctx->Driver.AllocTextureImageBuffer(ctx, texImage)) {
+ _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage%uD", dims);
+ return;
+ }
+
+ assert(intelImage->mt);
+
+ if (intelImage->mt->format == MESA_FORMAT_S_UINT8)
+ intelImage->mt->r8stencil_needs_update = true;
+
+ ok = _mesa_meta_pbo_TexSubImage(ctx, dims, texImage, 0, 0, 0,
+ texImage->Width, texImage->Height,
+ texImage->Depth,
+ format, type, pixels,
+ tex_busy, unpack);
+ if (ok)
+ return;
+
+ ok = intel_texsubimage_tiled_memcpy(ctx, dims, texImage,
+ 0, 0, 0, /*x,y,z offsets*/
+ texImage->Width,
+ texImage->Height,
+ texImage->Depth,
+ format, type, pixels, unpack,
+ false /*allocate_storage*/);
+ if (ok)
+ return;
+
+ DBG("%s: upload image %dx%dx%d pixels %p\n",
+ __func__, texImage->Width, texImage->Height, texImage->Depth,
+ pixels);
+
+ _mesa_store_teximage(ctx, dims, texImage,
+ format, type, pixels, unpack);
+}
+
+
+static void
+intel_set_texture_image_mt(struct brw_context *brw,
+ struct gl_texture_image *image,
+ GLenum internal_format,
+ struct intel_mipmap_tree *mt)
+
+{
+ struct gl_texture_object *texobj = image->TexObject;
+ struct intel_texture_object *intel_texobj = intel_texture_object(texobj);
+ struct intel_texture_image *intel_image = intel_texture_image(image);
+
+ _mesa_init_teximage_fields(&brw->ctx, image,
+ mt->logical_width0, mt->logical_height0, 1,
+ 0, internal_format, mt->format);
+
+ brw->ctx.Driver.FreeTextureImageBuffer(&brw->ctx, image);
+
+ intel_texobj->needs_validate = true;
+ intel_image->base.RowStride = mt->pitch / mt->cpp;
+ assert(mt->pitch % mt->cpp == 0);
+
+ intel_miptree_reference(&intel_image->mt, mt);
+
+ /* Immediately validate the image to the object. */
+ intel_miptree_reference(&intel_texobj->mt, mt);
+}
+
+static struct intel_mipmap_tree *
+create_mt_for_planar_dri_image(struct brw_context *brw,
+ GLenum target, __DRIimage *image)
+{
+ struct intel_image_format *f = image->planar_format;
+ struct intel_mipmap_tree *planar_mt;
+
+ for (int i = 0; i < f->nplanes; i++) {
+ const int index = f->planes[i].buffer_index;
+ const uint32_t dri_format = f->planes[i].dri_format;
+ const mesa_format format = driImageFormatToGLFormat(dri_format);
+ const uint32_t width = image->width >> f->planes[i].width_shift;
+ const uint32_t height = image->height >> f->planes[i].height_shift;
+
+ /* Disable creation of the texture's aux buffers because the driver
+ * exposes no EGL API to manage them. That is, there is no API for
+ * resolving the aux buffer's content to the main buffer nor for
+ * invalidating the aux buffer's content.
+ */
+ struct intel_mipmap_tree *mt =
+ intel_miptree_create_for_bo(brw, image->bo, format,
+ image->offsets[index],
+ width, height, 1,
+ image->strides[index],
+ MIPTREE_LAYOUT_DISABLE_AUX);
+ if (mt == NULL)
+ return NULL;
+
+ mt->target = target;
+ mt->total_width = width;
+ mt->total_height = height;
+
+ if (i == 0)
+ planar_mt = mt;
+ else
+ planar_mt->plane[i - 1] = mt;
+ }
+
+ return planar_mt;
+}
+
+/**
+ * Binds a BO to a texture image, as if it was uploaded by glTexImage2D().
+ *
+ * Used for GLX_EXT_texture_from_pixmap and EGL image extensions,
+ */
+static struct intel_mipmap_tree *
+create_mt_for_dri_image(struct brw_context *brw,
+ GLenum target, __DRIimage *image)
+{
+ struct gl_context *ctx = &brw->ctx;
+ struct intel_mipmap_tree *mt;
+ uint32_t draw_x, draw_y;
+
+ if (!ctx->TextureFormatSupported[image->format])
+ return NULL;
+
+ /* Disable creation of the texture's aux buffers because the driver exposes
+ * no EGL API to manage them. That is, there is no API for resolving the aux
+ * buffer's content to the main buffer nor for invalidating the aux buffer's
+ * content.
+ */
+ mt = intel_miptree_create_for_bo(brw, image->bo, image->format,
+ 0, image->width, image->height, 1,
+ image->pitch,
+ MIPTREE_LAYOUT_DISABLE_AUX);
+ if (mt == NULL)
+ return NULL;
+
+ mt->target = target;
+ mt->total_width = image->width;
+ mt->total_height = image->height;
+ mt->level[0].slice[0].x_offset = image->tile_x;
+ mt->level[0].slice[0].y_offset = image->tile_y;
+
+ intel_miptree_get_tile_offsets(mt, 0, 0, &draw_x, &draw_y);
+
+ /* From "OES_EGL_image" error reporting. We report GL_INVALID_OPERATION
+ * for EGL images from non-tile aligned sufaces in gen4 hw and earlier which has
+ * trouble resolving back to destination image due to alignment issues.
+ */
+ if (!brw->has_surface_tile_offset &&
+ (draw_x != 0 || draw_y != 0)) {
+ _mesa_error(&brw->ctx, GL_INVALID_OPERATION, __func__);
+ intel_miptree_release(&mt);
+ return NULL;
+ }
+
+ mt->offset = image->offset;
+
+ return mt;
+}
+
+void
+intelSetTexBuffer2(__DRIcontext *pDRICtx, GLint target,
+ GLint texture_format,
+ __DRIdrawable *dPriv)
+{
+ struct gl_framebuffer *fb = dPriv->driverPrivate;
+ struct brw_context *brw = pDRICtx->driverPrivate;
+ struct gl_context *ctx = &brw->ctx;
+ struct intel_renderbuffer *rb;
+ struct gl_texture_object *texObj;
+ struct gl_texture_image *texImage;
+ mesa_format texFormat = MESA_FORMAT_NONE;
+ struct intel_mipmap_tree *mt;
+ GLenum internal_format = 0;
+
+ texObj = _mesa_get_current_tex_object(ctx, target);
+
+ if (!texObj)
+ return;
+
+ if (dPriv->lastStamp != dPriv->dri2.stamp ||
+ !pDRICtx->driScreenPriv->dri2.useInvalidate)
+ intel_update_renderbuffers(pDRICtx, dPriv);
+
+ rb = intel_get_renderbuffer(fb, BUFFER_FRONT_LEFT);
+ /* If the miptree isn't set, then intel_update_renderbuffers was unable
+ * to get the BO for the drawable from the window system.
+ */
+ if (!rb || !rb->mt)
+ return;
+
+ if (rb->mt->cpp == 4) {
+ if (texture_format == __DRI_TEXTURE_FORMAT_RGB) {
+ internal_format = GL_RGB;
+ texFormat = MESA_FORMAT_B8G8R8X8_UNORM;
+ }
+ else {
+ internal_format = GL_RGBA;
+ texFormat = MESA_FORMAT_B8G8R8A8_UNORM;
+ }
+ } else if (rb->mt->cpp == 2) {
+ internal_format = GL_RGB;
+ texFormat = MESA_FORMAT_B5G6R5_UNORM;
+ }
+
+ intel_miptree_make_shareable(brw, rb->mt);
+ mt = intel_miptree_create_for_bo(brw, rb->mt->bo, texFormat, 0,
+ rb->Base.Base.Width,
+ rb->Base.Base.Height,
+ 1, rb->mt->pitch, 0);
+ if (mt == NULL)
+ return;
+ mt->target = target;
+ mt->total_width = rb->Base.Base.Width;
+ mt->total_height = rb->Base.Base.Height;
+
+ _mesa_lock_texture(&brw->ctx, texObj);
+ texImage = _mesa_get_tex_image(ctx, texObj, target, 0);
+ intel_set_texture_image_mt(brw, texImage, internal_format, mt);
+ intel_miptree_release(&mt);
+ _mesa_unlock_texture(&brw->ctx, texObj);
+}
+
+static GLboolean
+intel_bind_renderbuffer_tex_image(struct gl_context *ctx,
+ struct gl_renderbuffer *rb,
+ struct gl_texture_image *image)
+{
+ struct intel_renderbuffer *irb = intel_renderbuffer(rb);
+ struct intel_texture_image *intel_image = intel_texture_image(image);
+ struct gl_texture_object *texobj = image->TexObject;
+ struct intel_texture_object *intel_texobj = intel_texture_object(texobj);
+
+ /* We can only handle RB allocated with AllocRenderbufferStorage, or
+ * window-system renderbuffers.
+ */
+ assert(!rb->TexImage);
+
+ if (!irb->mt)
+ return false;
+
+ _mesa_lock_texture(ctx, texobj);
+ _mesa_init_teximage_fields(ctx, image,
+ rb->Width, rb->Height, 1,
+ 0, rb->InternalFormat, rb->Format);
+ image->NumSamples = rb->NumSamples;
+
+ intel_miptree_reference(&intel_image->mt, irb->mt);
+
+ /* Immediately validate the image to the object. */
+ intel_miptree_reference(&intel_texobj->mt, intel_image->mt);
+
+ intel_texobj->needs_validate = true;
+ _mesa_unlock_texture(ctx, texobj);
+
+ return true;
+}
+
+void
+intelSetTexBuffer(__DRIcontext *pDRICtx, GLint target, __DRIdrawable *dPriv)
+{
+ /* The old interface didn't have the format argument, so copy our
+ * implementation's behavior at the time.
+ */
+ intelSetTexBuffer2(pDRICtx, target, __DRI_TEXTURE_FORMAT_RGBA, dPriv);
+}
+
+static void
+intel_image_target_texture_2d(struct gl_context *ctx, GLenum target,
+ struct gl_texture_object *texObj,
+ struct gl_texture_image *texImage,
+ GLeglImageOES image_handle)
+{
+ struct brw_context *brw = brw_context(ctx);
+ struct intel_mipmap_tree *mt;
+ __DRIscreen *dri_screen = brw->screen->driScrnPriv;
+ __DRIimage *image;
+
+ image = dri_screen->dri2.image->lookupEGLImage(dri_screen, image_handle,
+ dri_screen->loaderPrivate);
+ if (image == NULL)
+ return;
+
+ /* We support external textures only for EGLImages created with
+ * EGL_EXT_image_dma_buf_import. We may lift that restriction in the future.
+ */
+ if (target == GL_TEXTURE_EXTERNAL_OES && !image->dma_buf_imported) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glEGLImageTargetTexture2DOES(external target is enabled only "
+ "for images created with EGL_EXT_image_dma_buf_import");
+ return;
+ }
+
+ /* Disallow depth/stencil textures: we don't have a way to pass the
+ * separate stencil miptree of a GL_DEPTH_STENCIL texture through.
+ */
+ if (image->has_depthstencil) {
+ _mesa_error(ctx, GL_INVALID_OPERATION, __func__);
+ return;
+ }
+
+ if (image->planar_format && image->planar_format->nplanes > 0)
+ mt = create_mt_for_planar_dri_image(brw, target, image);
+ else
+ mt = create_mt_for_dri_image(brw, target, image);
+ if (mt == NULL)
+ return;
+
+ struct intel_texture_object *intel_texobj = intel_texture_object(texObj);
+ intel_texobj->planar_format = image->planar_format;
+
+ const GLenum internal_format =
+ image->internal_format != 0 ?
+ image->internal_format : _mesa_get_format_base_format(mt->format);
+ intel_set_texture_image_mt(brw, texImage, internal_format, mt);
+ intel_miptree_release(&mt);
+}
+
+/**
+ * \brief A fast path for glGetTexImage.
+ *
+ * \see intel_readpixels_tiled_memcpy()
+ */
+bool
+intel_gettexsubimage_tiled_memcpy(struct gl_context *ctx,
+ struct gl_texture_image *texImage,
+ GLint xoffset, GLint yoffset,
+ GLsizei width, GLsizei height,
+ GLenum format, GLenum type,
+ GLvoid *pixels,
+ const struct gl_pixelstore_attrib *packing)
+{
+ struct brw_context *brw = brw_context(ctx);
+ struct intel_texture_image *image = intel_texture_image(texImage);
+ int dst_pitch;
+
+ /* The miptree's buffer. */
+ struct brw_bo *bo;
+
+ uint32_t cpp;
+ mem_copy_fn mem_copy = NULL;
+
+ /* This fastpath is restricted to specific texture types:
+ * a 2D BGRA, RGBA, L8 or A8 texture. It could be generalized to support
+ * more types.
+ *
+ * FINISHME: The restrictions below on packing alignment and packing row
+ * length are likely unneeded now because we calculate the destination stride
+ * with _mesa_image_row_stride. However, before removing the restrictions
+ * we need tests.
+ */
+ if (!brw->has_llc ||
+ !(type == GL_UNSIGNED_BYTE || type == GL_UNSIGNED_INT_8_8_8_8_REV) ||
+ !(texImage->TexObject->Target == GL_TEXTURE_2D ||
+ texImage->TexObject->Target == GL_TEXTURE_RECTANGLE) ||
+ pixels == NULL ||
+ _mesa_is_bufferobj(packing->BufferObj) ||
+ packing->Alignment > 4 ||
+ packing->SkipPixels > 0 ||
+ packing->SkipRows > 0 ||
+ (packing->RowLength != 0 && packing->RowLength != width) ||
+ packing->SwapBytes ||
+ packing->LsbFirst ||
+ packing->Invert)
+ return false;
+
+ /* We can't handle copying from RGBX or BGRX because the tiled_memcpy
+ * function doesn't set the last channel to 1. Note this checks BaseFormat
+ * rather than TexFormat in case the RGBX format is being simulated with an
+ * RGBA format.
+ */
+ if (texImage->_BaseFormat == GL_RGB)
+ return false;
+
+ if (!intel_get_memcpy(texImage->TexFormat, format, type, &mem_copy, &cpp))
+ return false;
+
+ /* If this is a nontrivial texture view, let another path handle it instead. */
+ if (texImage->TexObject->MinLayer)
+ return false;
+
+ if (!image->mt ||
+ (image->mt->tiling != I915_TILING_X &&
+ image->mt->tiling != I915_TILING_Y)) {
+ /* The algorithm is written only for X- or Y-tiled memory. */
+ return false;
+ }
+
+ /* tiled_to_linear() assumes that if the object is swizzled, it is using
+ * I915_BIT6_SWIZZLE_9_10 for X and I915_BIT6_SWIZZLE_9 for Y. This is only
+ * true on gen5 and above.
+ *
+ * The killer on top is that some gen4 have an L-shaped swizzle mode, where
+ * parts of the memory aren't swizzled at all. Userspace just can't handle
+ * that.
+ */
+ if (brw->gen < 5 && brw->has_swizzling)
+ return false;
+
+ int level = texImage->Level + texImage->TexObject->MinLevel;
+
+ /* Since we are going to write raw data to the miptree, we need to resolve
+ * any pending fast color clears before we start.
+ */
+ assert(image->mt->logical_depth0 == 1);
+ intel_miptree_access_raw(brw, image->mt, level, 0, true);
+
+ bo = image->mt->bo;
+
+ if (brw_batch_references(&brw->batch, bo)) {
+ perf_debug("Flushing before mapping a referenced bo.\n");
+ intel_batchbuffer_flush(brw);
+ }
+
+ void *map = brw_bo_map(brw, bo, MAP_READ | MAP_RAW);
+ if (map == NULL) {
+ DBG("%s: failed to map bo\n", __func__);
+ return false;
+ }
+
+ dst_pitch = _mesa_image_row_stride(packing, width, format, type);
+
+ DBG("%s: level=%d x,y=(%d,%d) (w,h)=(%d,%d) format=0x%x type=0x%x "
+ "mesa_format=0x%x tiling=%d "
+ "packing=(alignment=%d row_length=%d skip_pixels=%d skip_rows=%d)\n",
+ __func__, texImage->Level, xoffset, yoffset, width, height,
+ format, type, texImage->TexFormat, image->mt->tiling,
+ packing->Alignment, packing->RowLength, packing->SkipPixels,
+ packing->SkipRows);
+
+ /* Adjust x and y offset based on miplevel */
+ xoffset += image->mt->level[level].level_x;
+ yoffset += image->mt->level[level].level_y;
+
+ tiled_to_linear(
+ xoffset * cpp, (xoffset + width) * cpp,
+ yoffset, yoffset + height,
+ pixels - (ptrdiff_t) yoffset * dst_pitch - (ptrdiff_t) xoffset * cpp,
+ map,
+ dst_pitch, image->mt->pitch,
+ brw->has_swizzling,
+ image->mt->tiling,
+ mem_copy
+ );
+
+ brw_bo_unmap(bo);
+ return true;
+}
+
+static void
+intel_get_tex_sub_image(struct gl_context *ctx,
+ GLint xoffset, GLint yoffset, GLint zoffset,
+ GLsizei width, GLsizei height, GLint depth,
+ GLenum format, GLenum type, GLvoid *pixels,
+ struct gl_texture_image *texImage)
+{
+ struct brw_context *brw = brw_context(ctx);
+ bool ok;
+
+ DBG("%s\n", __func__);
+
+ if (_mesa_is_bufferobj(ctx->Pack.BufferObj)) {
+ if (_mesa_meta_pbo_GetTexSubImage(ctx, 3, texImage,
+ xoffset, yoffset, zoffset,
+ width, height, depth, format, type,
+ pixels, &ctx->Pack)) {
+ /* Flush to guarantee coherency between the render cache and other
+ * caches the PBO could potentially be bound to after this point.
+ * See the related comment in intelReadPixels() for a more detailed
+ * explanation.
+ */
+ brw_emit_mi_flush(brw);
+ return;
+ }
+
+ perf_debug("%s: fallback to CPU mapping in PBO case\n", __func__);
+ }
+
+ ok = intel_gettexsubimage_tiled_memcpy(ctx, texImage, xoffset, yoffset,
+ width, height,
+ format, type, pixels, &ctx->Pack);
+
+ if(ok)
+ return;
+
+ _mesa_meta_GetTexSubImage(ctx, xoffset, yoffset, zoffset,
+ width, height, depth,
+ format, type, pixels, texImage);
+
+ DBG("%s - DONE\n", __func__);
+}
+
+static void
+flush_astc_denorms(struct gl_context *ctx, GLuint dims,
+ struct gl_texture_image *texImage,
+ GLint xoffset, GLint yoffset, GLint zoffset,
+ GLsizei width, GLsizei height, GLsizei depth)
+{
+ struct compressed_pixelstore store;
+ _mesa_compute_compressed_pixelstore(dims, texImage->TexFormat,
+ width, height, depth,
+ &ctx->Unpack, &store);
+
+ for (int slice = 0; slice < store.CopySlices; slice++) {
+
+ /* Map dest texture buffer */
+ GLubyte *dstMap;
+ GLint dstRowStride;
+ ctx->Driver.MapTextureImage(ctx, texImage, slice + zoffset,
+ xoffset, yoffset, width, height,
+ GL_MAP_READ_BIT | GL_MAP_WRITE_BIT,
+ &dstMap, &dstRowStride);
+ if (!dstMap)
+ continue;
+
+ for (int i = 0; i < store.CopyRowsPerSlice; i++) {
+
+ /* An ASTC block is stored in little endian mode. The byte that
+ * contains bits 0..7 is stored at the lower address in memory.
+ */
+ struct astc_void_extent {
+ uint16_t header : 12;
+ uint16_t dontcare[3];
+ uint16_t R;
+ uint16_t G;
+ uint16_t B;
+ uint16_t A;
+ } *blocks = (struct astc_void_extent*) dstMap;
+
+ /* Iterate over every copied block in the row */
+ for (int j = 0; j < store.CopyBytesPerRow / 16; j++) {
+
+ /* Check if the header matches that of an LDR void-extent block */
+ if (blocks[j].header == 0xDFC) {
+
+ /* Flush UNORM16 values that would be denormalized */
+ if (blocks[j].A < 4) blocks[j].A = 0;
+ if (blocks[j].B < 4) blocks[j].B = 0;
+ if (blocks[j].G < 4) blocks[j].G = 0;
+ if (blocks[j].R < 4) blocks[j].R = 0;
+ }
+ }
+
+ dstMap += dstRowStride;
+ }
+
+ ctx->Driver.UnmapTextureImage(ctx, texImage, slice + zoffset);
+ }
+}
+
+
+static void
+intelCompressedTexSubImage(struct gl_context *ctx, GLuint dims,
+ struct gl_texture_image *texImage,
+ GLint xoffset, GLint yoffset, GLint zoffset,
+ GLsizei width, GLsizei height, GLsizei depth,
+ GLenum format,
+ GLsizei imageSize, const GLvoid *data)
+{
+ /* Upload the compressed data blocks */
+ _mesa_store_compressed_texsubimage(ctx, dims, texImage,
+ xoffset, yoffset, zoffset,
+ width, height, depth,
+ format, imageSize, data);
+
+ /* Fix up copied ASTC blocks if necessary */
+ GLenum gl_format = _mesa_compressed_format_to_glenum(ctx,
+ texImage->TexFormat);
+ bool is_linear_astc = _mesa_is_astc_format(gl_format) &&
+ !_mesa_is_srgb_format(gl_format);
+ struct brw_context *brw = (struct brw_context*) ctx;
+ if (brw->gen == 9 && is_linear_astc)
+ flush_astc_denorms(ctx, dims, texImage,
+ xoffset, yoffset, zoffset,
+ width, height, depth);
+}
+
+void
+intelInitTextureImageFuncs(struct dd_function_table *functions)
+{
+ functions->TexImage = intelTexImage;
+ functions->CompressedTexSubImage = intelCompressedTexSubImage;
+ functions->EGLImageTargetTexture2D = intel_image_target_texture_2d;
+ functions->BindRenderbufferTexImage = intel_bind_renderbuffer_tex_image;
+ functions->GetTexSubImage = intel_get_tex_sub_image;
+}
projects / mesa.git / blobdiff