| /* |
| * Copyright 2003 VMware, Inc. |
| * 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, sublicense, 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 NONINFRINGEMENT. |
| * IN NO EVENT SHALL VMWARE 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/image.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 "drivers/common/meta.h" |
| |
| #include "brw_context.h" |
| #include "intel_batchbuffer.h" |
| #include "intel_tex.h" |
| #include "intel_mipmap_tree.h" |
| #include "intel_blit.h" |
| #include "intel_tiled_memcpy.h" |
| |
| #define FILE_DEBUG_FLAG DEBUG_TEXTURE |
| |
| /** |
| * \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 texture format is BGRA, RGBA, |
| * A or L and when the texture memory is X- or Y-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 copying sucessive |
| * spans 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 copy with |
| * a sequence of copies over each linear span in tile. |
| * |
| * One 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 brw_context *brw = brw_context(ctx); |
| struct intel_texture_image *image = intel_texture_image(texImage); |
| int src_pitch; |
| |
| /* The miptree's buffer. */ |
| drm_intel_bo *bo; |
| |
| int error = 0; |
| |
| 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 source 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; |
| |
| /* Only a simple blit, no scale, bias or other mapping. */ |
| if (ctx->_ImageTransferState) |
| 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 (for_glTexImage) |
| ctx->Driver.AllocTextureImageBuffer(ctx, texImage); |
| |
| 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; |
| } |
| |
| /* 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(brw, image->mt, 0); |
| |
| bo = image->mt->bo; |
| |
| if (drm_intel_bo_references(brw->batch.bo, bo)) { |
| perf_debug("Flushing before mapping a referenced bo.\n"); |
| intel_batchbuffer_flush(brw); |
| } |
| |
| error = brw_bo_map(brw, bo, true /* write enable */, "miptree"); |
| if (error || bo->virtual == NULL) { |
| DBG("%s: failed to map bo\n", __func__); |
| return false; |
| } |
| |
| src_pitch = _mesa_image_row_stride(packing, width, format, type); |
| |
| /* We postponed printing this message until having committed to executing |
| * the function. |
| */ |
| DBG("%s: level=%d offset=(%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) " |
| "for_glTexImage=%d\n", |
| __func__, texImage->Level, xoffset, yoffset, width, height, |
| format, type, texImage->TexFormat, image->mt->tiling, |
| packing->Alignment, packing->RowLength, packing->SkipPixels, |
| packing->SkipRows, for_glTexImage); |
| |
| int level = texImage->Level + texImage->TexObject->MinLevel; |
| |
| /* Adjust x and y offset based on miplevel */ |
| xoffset += image->mt->level[level].level_x; |
| yoffset += image->mt->level[level].level_y; |
| |
| linear_to_tiled( |
| xoffset * cpp, (xoffset + width) * cpp, |
| yoffset, yoffset + height, |
| bo->virtual, |
| pixels - (ptrdiff_t) yoffset * src_pitch - (ptrdiff_t) xoffset * cpp, |
| image->mt->pitch, src_pitch, |
| brw->has_swizzling, |
| image->mt->tiling, |
| mem_copy |
| ); |
| |
| 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) |
| { |
| struct intel_texture_image *intelImage = intel_texture_image(texImage); |
| bool ok; |
| |
| bool tex_busy = intelImage->mt && drm_intel_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); |
| |
| ok = _mesa_meta_pbo_TexSubImage(ctx, dims, texImage, |
| xoffset, yoffset, zoffset, |
| width, height, depth, format, type, |
| pixels, tex_busy, packing); |
| if (ok) |
| return; |
| |
| ok = intel_texsubimage_tiled_memcpy(ctx, dims, texImage, |
| xoffset, yoffset, zoffset, |
| width, height, depth, |
| format, type, pixels, packing, |
| false /*for_glTexImage*/); |
| if (ok) |
| return; |
| |
| _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; |
| } |