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Diffstat (limited to 'src/mesa/drivers/dri/intel/intel_tex_subimage.c')
-rw-r--r--src/mesa/drivers/dri/intel/intel_tex_subimage.c335
1 files changed, 0 insertions, 335 deletions
diff --git a/src/mesa/drivers/dri/intel/intel_tex_subimage.c b/src/mesa/drivers/dri/intel/intel_tex_subimage.c
deleted file mode 100644
index f936e9b..0000000
--- a/src/mesa/drivers/dri/intel/intel_tex_subimage.c
+++ /dev/null
@@ -1,335 +0,0 @@
-
-/**************************************************************************
- *
- * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
- * All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sub license, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- *
- * The above copyright notice and this permission notice (including the
- * next paragraph) shall be included in all copies or substantial portions
- * of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
- * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
- * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
- * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
- * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- *
- **************************************************************************/
-
-#include "main/bufferobj.h"
-#include "main/macros.h"
-#include "main/mtypes.h"
-#include "main/pbo.h"
-#include "main/texobj.h"
-#include "main/texstore.h"
-#include "main/texcompress.h"
-#include "main/enums.h"
-
-#include "intel_batchbuffer.h"
-#include "intel_context.h"
-#include "intel_tex.h"
-#include "intel_mipmap_tree.h"
-#include "intel_blit.h"
-
-#define FILE_DEBUG_FLAG DEBUG_TEXTURE
-
-static bool
-intel_blit_texsubimage(struct gl_context * ctx,
- struct gl_texture_image *texImage,
- GLint xoffset, GLint yoffset,
- GLint width, GLint height,
- GLenum format, GLenum type, const void *pixels,
- const struct gl_pixelstore_attrib *packing)
-{
- struct intel_context *intel = intel_context(ctx);
- struct intel_texture_image *intelImage = intel_texture_image(texImage);
-
- /* Try to do a blit upload of the subimage if the texture is
- * currently busy.
- */
- if (!intelImage->mt)
- return false;
-
- /* The blitter can't handle Y tiling */
- if (intelImage->mt->region->tiling == I915_TILING_Y)
- return false;
-
- if (texImage->TexObject->Target != GL_TEXTURE_2D)
- return false;
-
- /* On gen6, it's probably not worth swapping to the blit ring to do
- * this because of all the overhead involved.
- */
- if (intel->gen >= 6)
- return false;
-
- if (!drm_intel_bo_busy(intelImage->mt->region->bo))
- return false;
-
- DBG("BLT subimage %s target %s level %d offset %d,%d %dx%d\n",
- __FUNCTION__,
- _mesa_lookup_enum_by_nr(texImage->TexObject->Target),
- texImage->Level, xoffset, yoffset, width, height);
-
- pixels = _mesa_validate_pbo_teximage(ctx, 2, width, height, 1,
- format, type, pixels, packing,
- "glTexSubImage");
- if (!pixels)
- return false;
-
- struct intel_mipmap_tree *temp_mt =
- intel_miptree_create(intel, GL_TEXTURE_2D, texImage->TexFormat,
- 0, 0,
- width, height, 1,
- false, 0, INTEL_MIPTREE_TILING_NONE);
- if (!temp_mt)
- goto err;
-
- GLubyte *dst = intel_miptree_map_raw(intel, temp_mt);
- if (!dst)
- goto err;
-
- if (!_mesa_texstore(ctx, 2, texImage->_BaseFormat,
- texImage->TexFormat,
- temp_mt->region->pitch,
- &dst,
- width, height, 1,
- format, type, pixels, packing)) {
- _mesa_error(ctx, GL_OUT_OF_MEMORY, "intelTexSubImage");
- }
-
- intel_miptree_unmap_raw(intel, temp_mt);
-
- bool ret;
-
- ret = intel_miptree_blit(intel,
- temp_mt, 0, 0,
- 0, 0, false,
- intelImage->mt, texImage->Level, texImage->Face,
- xoffset, yoffset, false,
- width, height, GL_COPY);
- assert(ret);
-
- intel_miptree_release(&temp_mt);
- _mesa_unmap_teximage_pbo(ctx, packing);
-
- return ret;
-
-err:
- _mesa_error(ctx, GL_OUT_OF_MEMORY, "intelTexSubImage");
- intel_miptree_release(&temp_mt);
- _mesa_unmap_teximage_pbo(ctx, packing);
- return false;
-}
-
-/**
- * \brief A fast path for glTexImage and glTexSubImage.
- *
- * \param for_glTexImage Was this called from glTexImage or glTexSubImage?
- *
- * This fast path is taken when the hardware natively supports the texture
- * format (such as GL_BGRA) and when the texture memory is X-tiled. It uploads
- * the texture data by mapping the texture memory without a GTT fence, thus
- * acquiring a tiled view of the memory, and then memcpy'ing sucessive
- * subspans within each tile.
- *
- * This is a performance win over the conventional texture upload path because
- * it avoids the performance penalty of writing through the write-combine
- * buffer. In the conventional texture upload path,
- * texstore.c:store_texsubimage(), the texture memory is mapped through a GTT
- * fence, thus acquiring a linear view of the memory, then each row in the
- * image is memcpy'd. In this fast path, we replace each row's memcpy with
- * a sequence of memcpy's over each bit6 swizzle span in the row.
- *
- * This fast path's use case is Google Chrome's paint rectangles. Chrome (as
- * of version 21) renders each page as a tiling of 256x256 GL_BGRA textures.
- * Each page's content is initially uploaded with glTexImage2D and damaged
- * regions are updated with glTexSubImage2D. On some workloads, the
- * performance gain of this fastpath on Sandybridge is over 5x.
- */
-bool
-intel_texsubimage_tiled_memcpy(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, GLenum type,
- const GLvoid *pixels,
- const struct gl_pixelstore_attrib *packing,
- bool for_glTexImage)
-{
- struct intel_context *intel = intel_context(ctx);
- struct intel_texture_image *image = intel_texture_image(texImage);
-
- /* The miptree's buffer. */
- drm_intel_bo *bo;
-
- int error = 0;
-
- /* This fastpath is restricted to a specific texture type: level 0 of
- * a 2D BGRA texture. It could be generalized to support more types by
- * varying the arithmetic loop below.
- */
- if (!intel->has_llc ||
- format != GL_BGRA ||
- type != GL_UNSIGNED_BYTE ||
- texImage->TexFormat != MESA_FORMAT_ARGB8888 ||
- texImage->TexObject->Target != GL_TEXTURE_2D ||
- texImage->Level != 0 ||
- 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;
-
- if (for_glTexImage)
- ctx->Driver.AllocTextureImageBuffer(ctx, texImage);
-
- if (!image->mt ||
- image->mt->region->tiling != I915_TILING_X) {
- /* The algorithm below is written only for X-tiled memory. */
- return false;
- }
-
- /* Since we are going to write raw data to the miptree, we need to resolve
- * any pending fast color clears before we start.
- */
- intel_miptree_resolve_color(intel, image->mt);
-
- bo = image->mt->region->bo;
-
- if (drm_intel_bo_references(intel->batch.bo, bo)) {
- perf_debug("Flushing before mapping a referenced bo.\n");
- intel_batchbuffer_flush(intel);
- }
-
- if (unlikely(intel->perf_debug)) {
- if (drm_intel_bo_busy(bo)) {
- perf_debug("Mapping a busy BO, causing a stall on the GPU.\n");
- }
- }
-
- error = drm_intel_bo_map(bo, true /*write_enable*/);
- if (error || bo->virtual == NULL) {
- DBG("%s: failed to map bo\n", __FUNCTION__);
- return false;
- }
-
- /* We postponed printing this message until having committed to executing
- * the function.
- */
- DBG("%s: level=%d offset=(%d,%d) (w,h)=(%d,%d)\n",
- __FUNCTION__, texImage->Level, xoffset, yoffset, width, height);
-
- /* In the tiling algorithm below, some variables are in units of pixels,
- * others are in units of bytes, and others (such as height) are unitless.
- * Each variable name is suffixed with its units.
- */
-
- const uint32_t x_max_pixels = xoffset + width;
- const uint32_t y_max_pixels = yoffset + height;
-
- const uint32_t tile_size_bytes = 4096;
-
- const uint32_t tile_width_bytes = 512;
- const uint32_t tile_width_pixels = 128;
-
- const uint32_t tile_height = 8;
-
- const uint32_t cpp = 4; /* chars per pixel of GL_BGRA */
- const uint32_t swizzle_width_pixels = 16;
-
- const uint32_t stride_bytes = image->mt->region->pitch;
- const uint32_t width_tiles = stride_bytes / tile_width_bytes;
-
- for (uint32_t y_pixels = yoffset; y_pixels < y_max_pixels; ++y_pixels) {
- const uint32_t y_offset_bytes = (y_pixels / tile_height) * width_tiles * tile_size_bytes
- + (y_pixels % tile_height) * tile_width_bytes;
-
- for (uint32_t x_pixels = xoffset; x_pixels < x_max_pixels; x_pixels += swizzle_width_pixels) {
- const uint32_t x_offset_bytes = (x_pixels / tile_width_pixels) * tile_size_bytes
- + (x_pixels % tile_width_pixels) * cpp;
-
- intptr_t offset_bytes = y_offset_bytes + x_offset_bytes;
- if (intel->has_swizzling) {
-#if 0
- /* Clear, unoptimized version. */
- bool bit6 = (offset_bytes >> 6) & 1;
- bool bit9 = (offset_bytes >> 9) & 1;
- bool bit10 = (offset_bytes >> 10) & 1;
-
- if (bit9 ^ bit10)
- offset_bytes ^= (1 << 6);
-#else
- /* Optimized, obfuscated version. */
- offset_bytes ^= ((offset_bytes >> 3) ^ (offset_bytes >> 4))
- & (1 << 6);
-#endif
- }
-
- const uint32_t swizzle_bound_pixels = ALIGN(x_pixels + 1, swizzle_width_pixels);
- const uint32_t memcpy_bound_pixels = MIN2(x_max_pixels, swizzle_bound_pixels);
- const uint32_t copy_size = cpp * (memcpy_bound_pixels - x_pixels);
-
- memcpy(bo->virtual + offset_bytes, pixels, copy_size);
- pixels += copy_size;
- x_pixels -= (x_pixels % swizzle_width_pixels);
- }
- }
-
- drm_intel_bo_unmap(bo);
- return true;
-}
-
-static void
-intelTexSubImage(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, GLenum type,
- const GLvoid * pixels,
- const struct gl_pixelstore_attrib *packing)
-{
- bool ok;
-
- ok = intel_texsubimage_tiled_memcpy(ctx, dims, texImage,
- xoffset, yoffset, zoffset,
- width, height, depth,
- format, type, pixels, packing,
- false /*for_glTexImage*/);
- if (ok)
- return;
-
- /* The intel_blit_texsubimage() function only handles 2D images */
- if (dims != 2 || !intel_blit_texsubimage(ctx, texImage,
- xoffset, yoffset,
- width, height,
- format, type, pixels, packing)) {
- _mesa_store_texsubimage(ctx, dims, texImage,
- xoffset, yoffset, zoffset,
- width, height, depth,
- format, type, pixels, packing);
- }
-}
-
-void
-intelInitTextureSubImageFuncs(struct dd_function_table *functions)
-{
- functions->TexSubImage = intelTexSubImage;
-}
generated by cgit v1.1 at 2024-06-16 09:13:08 +0000