| /* |
| * 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/mtypes.h" |
| #include "main/blit.h" |
| #include "main/context.h" |
| #include "main/enums.h" |
| #include "main/fbobject.h" |
| |
| #include "brw_context.h" |
| #include "brw_defines.h" |
| #include "intel_blit.h" |
| #include "intel_buffers.h" |
| #include "intel_fbo.h" |
| #include "intel_batchbuffer.h" |
| #include "intel_mipmap_tree.h" |
| |
| #define FILE_DEBUG_FLAG DEBUG_BLIT |
| |
| #define SET_TILING_XY_FAST_COPY_BLT(tiling, tr_mode, type) \ |
| ({ \ |
| switch (tiling) { \ |
| case I915_TILING_X: \ |
| CMD |= type ## _TILED_X; \ |
| break; \ |
| case I915_TILING_Y: \ |
| if (tr_mode == INTEL_MIPTREE_TRMODE_YS) \ |
| CMD |= type ## _TILED_64K; \ |
| else \ |
| CMD |= type ## _TILED_Y; \ |
| break; \ |
| default: \ |
| unreachable("not reached"); \ |
| } \ |
| }) |
| |
| static void |
| intel_miptree_set_alpha_to_one(struct brw_context *brw, |
| struct intel_mipmap_tree *mt, |
| int x, int y, int width, int height); |
| |
| static GLuint translate_raster_op(GLenum logicop) |
| { |
| switch(logicop) { |
| case GL_CLEAR: return 0x00; |
| case GL_AND: return 0x88; |
| case GL_AND_REVERSE: return 0x44; |
| case GL_COPY: return 0xCC; |
| case GL_AND_INVERTED: return 0x22; |
| case GL_NOOP: return 0xAA; |
| case GL_XOR: return 0x66; |
| case GL_OR: return 0xEE; |
| case GL_NOR: return 0x11; |
| case GL_EQUIV: return 0x99; |
| case GL_INVERT: return 0x55; |
| case GL_OR_REVERSE: return 0xDD; |
| case GL_COPY_INVERTED: return 0x33; |
| case GL_OR_INVERTED: return 0xBB; |
| case GL_NAND: return 0x77; |
| case GL_SET: return 0xFF; |
| default: return 0; |
| } |
| } |
| |
| static uint32_t |
| br13_for_cpp(int cpp) |
| { |
| switch (cpp) { |
| case 16: |
| return BR13_32323232; |
| case 8: |
| return BR13_16161616; |
| case 4: |
| return BR13_8888; |
| case 2: |
| return BR13_565; |
| case 1: |
| return BR13_8; |
| default: |
| unreachable("not reached"); |
| } |
| } |
| |
| /** |
| * Emits the packet for switching the blitter from X to Y tiled or back. |
| * |
| * This has to be called in a single BEGIN_BATCH_BLT_TILED() / |
| * ADVANCE_BATCH_TILED(). This is because BCS_SWCTRL is saved and restored as |
| * part of the power context, not a render context, and if the batchbuffer was |
| * to get flushed between setting and blitting, or blitting and restoring, our |
| * tiling state would leak into other unsuspecting applications (like the X |
| * server). |
| */ |
| static uint32_t * |
| set_blitter_tiling(struct brw_context *brw, |
| bool dst_y_tiled, bool src_y_tiled, |
| uint32_t *__map) |
| { |
| assert(brw->gen >= 6); |
| |
| /* Idle the blitter before we update how tiling is interpreted. */ |
| OUT_BATCH(MI_FLUSH_DW); |
| OUT_BATCH(0); |
| OUT_BATCH(0); |
| OUT_BATCH(0); |
| |
| OUT_BATCH(MI_LOAD_REGISTER_IMM | (3 - 2)); |
| OUT_BATCH(BCS_SWCTRL); |
| OUT_BATCH((BCS_SWCTRL_DST_Y | BCS_SWCTRL_SRC_Y) << 16 | |
| (dst_y_tiled ? BCS_SWCTRL_DST_Y : 0) | |
| (src_y_tiled ? BCS_SWCTRL_SRC_Y : 0)); |
| return __map; |
| } |
| #define SET_BLITTER_TILING(...) __map = set_blitter_tiling(__VA_ARGS__, __map) |
| |
| #define BEGIN_BATCH_BLT_TILED(n, dst_y_tiled, src_y_tiled) \ |
| BEGIN_BATCH_BLT(n + ((dst_y_tiled || src_y_tiled) ? 14 : 0)); \ |
| if (dst_y_tiled || src_y_tiled) \ |
| SET_BLITTER_TILING(brw, dst_y_tiled, src_y_tiled) |
| |
| #define ADVANCE_BATCH_TILED(dst_y_tiled, src_y_tiled) \ |
| if (dst_y_tiled || src_y_tiled) \ |
| SET_BLITTER_TILING(brw, false, false); \ |
| ADVANCE_BATCH() |
| |
| static int |
| blt_pitch(struct intel_mipmap_tree *mt) |
| { |
| int pitch = mt->pitch; |
| if (mt->tiling) |
| pitch /= 4; |
| return pitch; |
| } |
| |
| bool |
| intel_miptree_blit_compatible_formats(mesa_format src, mesa_format dst) |
| { |
| /* The BLT doesn't handle sRGB conversion */ |
| assert(src == _mesa_get_srgb_format_linear(src)); |
| assert(dst == _mesa_get_srgb_format_linear(dst)); |
| |
| /* No swizzle or format conversions possible, except... */ |
| if (src == dst) |
| return true; |
| |
| /* ...we can either discard the alpha channel when going from A->X, |
| * or we can fill the alpha channel with 0xff when going from X->A |
| */ |
| if (src == MESA_FORMAT_B8G8R8A8_UNORM || src == MESA_FORMAT_B8G8R8X8_UNORM) |
| return (dst == MESA_FORMAT_B8G8R8A8_UNORM || |
| dst == MESA_FORMAT_B8G8R8X8_UNORM); |
| |
| if (src == MESA_FORMAT_R8G8B8A8_UNORM || src == MESA_FORMAT_R8G8B8X8_UNORM) |
| return (dst == MESA_FORMAT_R8G8B8A8_UNORM || |
| dst == MESA_FORMAT_R8G8B8X8_UNORM); |
| |
| return false; |
| } |
| |
| static void |
| get_blit_intratile_offset_el(const struct brw_context *brw, |
| struct intel_mipmap_tree *mt, |
| uint32_t total_x_offset_el, |
| uint32_t total_y_offset_el, |
| uint32_t *base_address_offset, |
| uint32_t *x_offset_el, |
| uint32_t *y_offset_el) |
| { |
| enum isl_tiling tiling = intel_miptree_get_isl_tiling(mt); |
| isl_tiling_get_intratile_offset_el(&brw->isl_dev, |
| tiling, mt->cpp, mt->pitch, |
| total_x_offset_el, total_y_offset_el, |
| base_address_offset, |
| x_offset_el, y_offset_el); |
| if (tiling == ISL_TILING_LINEAR) { |
| /* From the Broadwell PRM docs for XY_SRC_COPY_BLT::SourceBaseAddress: |
| * |
| * "Base address of the destination surface: X=0, Y=0. Lower 32bits |
| * of the 48bit addressing. When Src Tiling is enabled (Bit_15 |
| * enabled), this address must be 4KB-aligned. When Tiling is not |
| * enabled, this address should be CL (64byte) aligned." |
| * |
| * The offsets we get from ISL in the tiled case are already aligned. |
| * In the linear case, we need to do some of our own aligning. |
| */ |
| assert(mt->pitch % 64 == 0); |
| uint32_t delta = *base_address_offset & 63; |
| assert(delta % mt->cpp == 0); |
| *base_address_offset -= delta; |
| *x_offset_el += delta / mt->cpp; |
| } else { |
| assert(*base_address_offset % 4096 == 0); |
| } |
| } |
| |
| static bool |
| emit_miptree_blit(struct brw_context *brw, |
| struct intel_mipmap_tree *src_mt, |
| uint32_t src_x, uint32_t src_y, |
| struct intel_mipmap_tree *dst_mt, |
| uint32_t dst_x, uint32_t dst_y, |
| uint32_t width, uint32_t height, |
| bool reverse, GLenum logicop) |
| { |
| /* According to the Ivy Bridge PRM, Vol1 Part4, section 1.2.1.2 (Graphics |
| * Data Size Limitations): |
| * |
| * The BLT engine is capable of transferring very large quantities of |
| * graphics data. Any graphics data read from and written to the |
| * destination is permitted to represent a number of pixels that |
| * occupies up to 65,536 scan lines and up to 32,768 bytes per scan line |
| * at the destination. The maximum number of pixels that may be |
| * represented per scan line’s worth of graphics data depends on the |
| * color depth. |
| * |
| * Furthermore, intelEmitCopyBlit (which is called below) uses a signed |
| * 16-bit integer to represent buffer pitch, so it can only handle buffer |
| * pitches < 32k. However, the pitch is measured in bytes for linear buffers |
| * and dwords for tiled buffers. |
| * |
| * As a result of these two limitations, we can only use the blitter to do |
| * this copy when the miptree's pitch is less than 32k linear or 128k tiled. |
| */ |
| if (blt_pitch(src_mt) >= 32768 || blt_pitch(dst_mt) >= 32768) { |
| perf_debug("Falling back due to >= 32k/128k pitch\n"); |
| return false; |
| } |
| |
| /* We need to split the blit into chunks that each fit within the blitter's |
| * restrictions. We can't use a chunk size of 32768 because we need to |
| * ensure that src_tile_x + chunk_size fits. We choose 16384 because it's |
| * a nice round power of two, big enough that performance won't suffer, and |
| * small enough to guarantee everything fits. |
| */ |
| const uint32_t max_chunk_size = 16384; |
| |
| for (uint32_t chunk_x = 0; chunk_x < width; chunk_x += max_chunk_size) { |
| for (uint32_t chunk_y = 0; chunk_y < height; chunk_y += max_chunk_size) { |
| const uint32_t chunk_w = MIN2(max_chunk_size, width - chunk_x); |
| const uint32_t chunk_h = MIN2(max_chunk_size, height - chunk_y); |
| |
| uint32_t src_offset, src_tile_x, src_tile_y; |
| get_blit_intratile_offset_el(brw, src_mt, |
| src_x + chunk_x, src_y + chunk_y, |
| &src_offset, &src_tile_x, &src_tile_y); |
| |
| uint32_t dst_offset, dst_tile_x, dst_tile_y; |
| get_blit_intratile_offset_el(brw, dst_mt, |
| dst_x + chunk_x, dst_y + chunk_y, |
| &dst_offset, &dst_tile_x, &dst_tile_y); |
| |
| if (!intelEmitCopyBlit(brw, |
| src_mt->cpp, |
| reverse ? -src_mt->pitch : src_mt->pitch, |
| src_mt->bo, src_mt->offset + src_offset, |
| src_mt->tiling, |
| src_mt->tr_mode, |
| dst_mt->pitch, |
| dst_mt->bo, dst_mt->offset + dst_offset, |
| dst_mt->tiling, |
| dst_mt->tr_mode, |
| src_tile_x, src_tile_y, |
| dst_tile_x, dst_tile_y, |
| chunk_w, chunk_h, |
| logicop)) { |
| /* If this is ever going to fail, it will fail on the first chunk */ |
| assert(chunk_x == 0 && chunk_y == 0); |
| return false; |
| } |
| } |
| } |
| |
| return true; |
| } |
| |
| /** |
| * Implements a rectangular block transfer (blit) of pixels between two |
| * miptrees. |
| * |
| * Our blitter can operate on 1, 2, or 4-byte-per-pixel data, with generous, |
| * but limited, pitches and sizes allowed. |
| * |
| * The src/dst coordinates are relative to the given level/slice of the |
| * miptree. |
| * |
| * If @src_flip or @dst_flip is set, then the rectangle within that miptree |
| * will be inverted (including scanline order) when copying. This is common |
| * in GL when copying between window system and user-created |
| * renderbuffers/textures. |
| */ |
| bool |
| intel_miptree_blit(struct brw_context *brw, |
| struct intel_mipmap_tree *src_mt, |
| int src_level, int src_slice, |
| uint32_t src_x, uint32_t src_y, bool src_flip, |
| struct intel_mipmap_tree *dst_mt, |
| int dst_level, int dst_slice, |
| uint32_t dst_x, uint32_t dst_y, bool dst_flip, |
| uint32_t width, uint32_t height, |
| GLenum logicop) |
| { |
| /* The blitter doesn't understand multisampling at all. */ |
| if (src_mt->num_samples > 0 || dst_mt->num_samples > 0) |
| return false; |
| |
| /* No sRGB decode or encode is done by the hardware blitter, which is |
| * consistent with what we want in many callers (glCopyTexSubImage(), |
| * texture validation, etc.). |
| */ |
| mesa_format src_format = _mesa_get_srgb_format_linear(src_mt->format); |
| mesa_format dst_format = _mesa_get_srgb_format_linear(dst_mt->format); |
| |
| /* The blitter doesn't support doing any format conversions. We do also |
| * support blitting ARGB8888 to XRGB8888 (trivial, the values dropped into |
| * the X channel don't matter), and XRGB8888 to ARGB8888 by setting the A |
| * channel to 1.0 at the end. |
| */ |
| if (!intel_miptree_blit_compatible_formats(src_format, dst_format)) { |
| perf_debug("%s: Can't use hardware blitter from %s to %s, " |
| "falling back.\n", __func__, |
| _mesa_get_format_name(src_format), |
| _mesa_get_format_name(dst_format)); |
| return false; |
| } |
| |
| /* The blitter has no idea about HiZ or fast color clears, so we need to |
| * resolve the miptrees before we do anything. |
| */ |
| intel_miptree_slice_resolve_depth(brw, src_mt, src_level, src_slice); |
| intel_miptree_slice_resolve_depth(brw, dst_mt, dst_level, dst_slice); |
| intel_miptree_resolve_color(brw, src_mt, src_level, src_slice, 1, 0); |
| intel_miptree_resolve_color(brw, dst_mt, dst_level, dst_slice, 1, 0); |
| |
| if (src_flip) |
| src_y = minify(src_mt->physical_height0, src_level - src_mt->first_level) - src_y - height; |
| |
| if (dst_flip) |
| dst_y = minify(dst_mt->physical_height0, dst_level - dst_mt->first_level) - dst_y - height; |
| |
| uint32_t src_image_x, src_image_y, dst_image_x, dst_image_y; |
| intel_miptree_get_image_offset(src_mt, src_level, src_slice, |
| &src_image_x, &src_image_y); |
| intel_miptree_get_image_offset(dst_mt, dst_level, dst_slice, |
| &dst_image_x, &dst_image_y); |
| src_x += src_image_x; |
| src_y += src_image_y; |
| dst_x += dst_image_x; |
| dst_y += dst_image_y; |
| |
| if (!emit_miptree_blit(brw, src_mt, src_x, src_y, |
| dst_mt, dst_x, dst_y, width, height, |
| src_flip != dst_flip, logicop)) { |
| return false; |
| } |
| |
| /* XXX This could be done in a single pass using XY_FULL_MONO_PATTERN_BLT */ |
| if (_mesa_get_format_bits(src_format, GL_ALPHA_BITS) == 0 && |
| _mesa_get_format_bits(dst_format, GL_ALPHA_BITS) > 0) { |
| intel_miptree_set_alpha_to_one(brw, dst_mt, |
| dst_x, dst_y, |
| width, height); |
| } |
| |
| return true; |
| } |
| |
| bool |
| intel_miptree_copy(struct brw_context *brw, |
| struct intel_mipmap_tree *src_mt, |
| int src_level, int src_slice, |
| uint32_t src_x, uint32_t src_y, |
| struct intel_mipmap_tree *dst_mt, |
| int dst_level, int dst_slice, |
| uint32_t dst_x, uint32_t dst_y, |
| uint32_t src_width, uint32_t src_height) |
| { |
| /* The blitter doesn't understand multisampling at all. */ |
| if (src_mt->num_samples > 0 || dst_mt->num_samples > 0) |
| return false; |
| |
| if (src_mt->format == MESA_FORMAT_S_UINT8) |
| return false; |
| |
| /* The blitter has no idea about HiZ or fast color clears, so we need to |
| * resolve the miptrees before we do anything. |
| */ |
| intel_miptree_slice_resolve_depth(brw, src_mt, src_level, src_slice); |
| intel_miptree_slice_resolve_depth(brw, dst_mt, dst_level, dst_slice); |
| intel_miptree_resolve_color(brw, src_mt, src_level, src_slice, 1, 0); |
| intel_miptree_resolve_color(brw, dst_mt, dst_level, dst_slice, 1, 0); |
| |
| uint32_t src_image_x, src_image_y; |
| intel_miptree_get_image_offset(src_mt, src_level, src_slice, |
| &src_image_x, &src_image_y); |
| |
| if (_mesa_is_format_compressed(src_mt->format)) { |
| GLuint bw, bh; |
| _mesa_get_format_block_size(src_mt->format, &bw, &bh); |
| |
| /* Compressed textures need not have dimensions that are a multiple of |
| * the block size. Rectangles in compressed textures do need to be a |
| * multiple of the block size. The one exception is that the right and |
| * bottom edges may be at the right or bottom edge of the miplevel even |
| * if it's not aligned. |
| */ |
| assert(src_x % bw == 0); |
| assert(src_y % bh == 0); |
| assert(src_width % bw == 0 || |
| src_x + src_width == minify(src_mt->logical_width0, src_level)); |
| assert(src_height % bh == 0 || |
| src_y + src_height == minify(src_mt->logical_height0, src_level)); |
| |
| src_x /= (int)bw; |
| src_y /= (int)bh; |
| src_width /= (int)bw; |
| src_height /= (int)bh; |
| } |
| src_x += src_image_x; |
| src_y += src_image_y; |
| |
| uint32_t dst_image_x, dst_image_y; |
| intel_miptree_get_image_offset(dst_mt, dst_level, dst_slice, |
| &dst_image_x, &dst_image_y); |
| |
| if (_mesa_is_format_compressed(dst_mt->format)) { |
| GLuint bw, bh; |
| _mesa_get_format_block_size(dst_mt->format, &bw, &bh); |
| |
| assert(dst_x % bw == 0); |
| assert(dst_y % bh == 0); |
| |
| dst_x /= (int)bw; |
| dst_y /= (int)bh; |
| } |
| dst_x += dst_image_x; |
| dst_y += dst_image_y; |
| |
| return emit_miptree_blit(brw, src_mt, src_x, src_y, |
| dst_mt, dst_x, dst_y, |
| src_width, src_height, false, GL_COPY); |
| } |
| |
| static bool |
| alignment_valid(struct brw_context *brw, unsigned offset, uint32_t tiling) |
| { |
| /* Tiled buffers must be page-aligned (4K). */ |
| if (tiling != I915_TILING_NONE) |
| return (offset & 4095) == 0; |
| |
| /* On Gen8+, linear buffers must be cacheline-aligned. */ |
| if (brw->gen >= 8) |
| return (offset & 63) == 0; |
| |
| return true; |
| } |
| |
| static bool |
| can_fast_copy_blit(struct brw_context *brw, |
| drm_intel_bo *src_buffer, |
| int16_t src_x, int16_t src_y, |
| uintptr_t src_offset, uint32_t src_pitch, |
| uint32_t src_tiling, uint32_t src_tr_mode, |
| drm_intel_bo *dst_buffer, |
| int16_t dst_x, int16_t dst_y, |
| uintptr_t dst_offset, uint32_t dst_pitch, |
| uint32_t dst_tiling, uint32_t dst_tr_mode, |
| int16_t w, int16_t h, uint32_t cpp, |
| GLenum logic_op) |
| { |
| const bool dst_tiling_none = dst_tiling == I915_TILING_NONE; |
| const bool src_tiling_none = src_tiling == I915_TILING_NONE; |
| |
| if (brw->gen < 9) |
| return false; |
| |
| /* Enable fast copy blit only if the surfaces are Yf/Ys tiled. |
| * FIXME: Based on performance data, remove this condition later to |
| * enable for all types of surfaces. |
| */ |
| if (src_tr_mode == INTEL_MIPTREE_TRMODE_NONE && |
| dst_tr_mode == INTEL_MIPTREE_TRMODE_NONE) |
| return false; |
| |
| if (logic_op != GL_COPY) |
| return false; |
| |
| /* The start pixel for Fast Copy blit should be on an OWord boundary. */ |
| if ((dst_x * cpp | src_x * cpp) & 15) |
| return false; |
| |
| /* For all surface types buffers must be cacheline-aligned. */ |
| if ((dst_offset | src_offset) & 63) |
| return false; |
| |
| /* Color depths which are not power of 2 or greater than 128 bits are |
| * not supported. |
| */ |
| if (!_mesa_is_pow_two(cpp) || cpp > 16) |
| return false; |
| |
| /* For Fast Copy Blits the pitch cannot be a negative number. So, bit 15 |
| * of the destination pitch must be zero. |
| */ |
| if ((src_pitch >> 15 & 1) != 0 || (dst_pitch >> 15 & 1) != 0) |
| return false; |
| |
| /* For Linear surfaces, the pitch has to be an OWord (16byte) multiple. */ |
| if ((src_tiling_none && src_pitch % 16 != 0) || |
| (dst_tiling_none && dst_pitch % 16 != 0)) |
| return false; |
| |
| return true; |
| } |
| |
| static uint32_t |
| xy_blit_cmd(uint32_t src_tiling, uint32_t src_tr_mode, |
| uint32_t dst_tiling, uint32_t dst_tr_mode, |
| uint32_t cpp, bool use_fast_copy_blit) |
| { |
| uint32_t CMD = 0; |
| |
| if (use_fast_copy_blit) { |
| CMD = XY_FAST_COPY_BLT_CMD; |
| |
| if (dst_tiling != I915_TILING_NONE) |
| SET_TILING_XY_FAST_COPY_BLT(dst_tiling, dst_tr_mode, XY_FAST_DST); |
| |
| if (src_tiling != I915_TILING_NONE) |
| SET_TILING_XY_FAST_COPY_BLT(src_tiling, src_tr_mode, XY_FAST_SRC); |
| } else { |
| assert(cpp <= 4); |
| switch (cpp) { |
| case 1: |
| case 2: |
| CMD = XY_SRC_COPY_BLT_CMD; |
| break; |
| case 4: |
| CMD = XY_SRC_COPY_BLT_CMD | XY_BLT_WRITE_ALPHA | XY_BLT_WRITE_RGB; |
| break; |
| default: |
| unreachable("not reached"); |
| } |
| |
| if (dst_tiling != I915_TILING_NONE) |
| CMD |= XY_DST_TILED; |
| |
| if (src_tiling != I915_TILING_NONE) |
| CMD |= XY_SRC_TILED; |
| } |
| return CMD; |
| } |
| |
| /* Copy BitBlt |
| */ |
| bool |
| intelEmitCopyBlit(struct brw_context *brw, |
| GLuint cpp, |
| GLshort src_pitch, |
| drm_intel_bo *src_buffer, |
| GLuint src_offset, |
| uint32_t src_tiling, |
| uint32_t src_tr_mode, |
| GLshort dst_pitch, |
| drm_intel_bo *dst_buffer, |
| GLuint dst_offset, |
| uint32_t dst_tiling, |
| uint32_t dst_tr_mode, |
| GLshort src_x, GLshort src_y, |
| GLshort dst_x, GLshort dst_y, |
| GLshort w, GLshort h, |
| GLenum logic_op) |
| { |
| GLuint CMD, BR13, pass = 0; |
| int dst_y2 = dst_y + h; |
| int dst_x2 = dst_x + w; |
| drm_intel_bo *aper_array[3]; |
| bool dst_y_tiled = dst_tiling == I915_TILING_Y; |
| bool src_y_tiled = src_tiling == I915_TILING_Y; |
| bool use_fast_copy_blit = false; |
| uint32_t src_tile_w, src_tile_h; |
| uint32_t dst_tile_w, dst_tile_h; |
| |
| if ((dst_y_tiled || src_y_tiled) && brw->gen < 6) |
| return false; |
| |
| /* do space check before going any further */ |
| do { |
| aper_array[0] = brw->batch.bo; |
| aper_array[1] = dst_buffer; |
| aper_array[2] = src_buffer; |
| |
| if (dri_bufmgr_check_aperture_space(aper_array, 3) != 0) { |
| intel_batchbuffer_flush(brw); |
| pass++; |
| } else |
| break; |
| } while (pass < 2); |
| |
| if (pass >= 2) |
| return false; |
| |
| unsigned length = brw->gen >= 8 ? 10 : 8; |
| |
| intel_batchbuffer_require_space(brw, length * 4, BLT_RING); |
| DBG("%s src:buf(%p)/%d+%d %d,%d dst:buf(%p)/%d+%d %d,%d sz:%dx%d\n", |
| __func__, |
| src_buffer, src_pitch, src_offset, src_x, src_y, |
| dst_buffer, dst_pitch, dst_offset, dst_x, dst_y, w, h); |
| |
| intel_get_tile_dims(src_tiling, src_tr_mode, cpp, &src_tile_w, &src_tile_h); |
| intel_get_tile_dims(dst_tiling, dst_tr_mode, cpp, &dst_tile_w, &dst_tile_h); |
| |
| /* For Tiled surfaces, the pitch has to be a multiple of the Tile width |
| * (X direction width of the Tile). This is ensured while allocating the |
| * buffer object. |
| */ |
| assert(src_tiling == I915_TILING_NONE || (src_pitch % src_tile_w) == 0); |
| assert(dst_tiling == I915_TILING_NONE || (dst_pitch % dst_tile_w) == 0); |
| |
| use_fast_copy_blit = can_fast_copy_blit(brw, |
| src_buffer, |
| src_x, src_y, |
| src_offset, src_pitch, |
| src_tiling, src_tr_mode, |
| dst_buffer, |
| dst_x, dst_y, |
| dst_offset, dst_pitch, |
| dst_tiling, dst_tr_mode, |
| w, h, cpp, logic_op); |
| if (!use_fast_copy_blit && |
| (src_tr_mode != INTEL_MIPTREE_TRMODE_NONE || |
| dst_tr_mode != INTEL_MIPTREE_TRMODE_NONE)) |
| return false; |
| |
| if (use_fast_copy_blit) { |
| assert(logic_op == GL_COPY); |
| |
| /* When two sequential fast copy blits have different source surfaces, |
| * but their destinations refer to the same destination surfaces and |
| * therefore destinations overlap it is imperative that a flush be |
| * inserted between the two blits. |
| * |
| * FIXME: Figure out a way to avoid flushing when not required. |
| */ |
| brw_emit_mi_flush(brw); |
| |
| assert(cpp <= 16); |
| BR13 = br13_for_cpp(cpp); |
| |
| if (src_tr_mode == INTEL_MIPTREE_TRMODE_YF) |
| BR13 |= XY_FAST_SRC_TRMODE_YF; |
| |
| if (dst_tr_mode == INTEL_MIPTREE_TRMODE_YF) |
| BR13 |= XY_FAST_DST_TRMODE_YF; |
| |
| CMD = xy_blit_cmd(src_tiling, src_tr_mode, |
| dst_tiling, dst_tr_mode, |
| cpp, use_fast_copy_blit); |
| |
| } else { |
| /* For big formats (such as floating point), do the copy using 16 or |
| * 32bpp and multiply the coordinates. |
| */ |
| if (cpp > 4) { |
| if (cpp % 4 == 2) { |
| dst_x *= cpp / 2; |
| dst_x2 *= cpp / 2; |
| src_x *= cpp / 2; |
| cpp = 2; |
| } else { |
| assert(cpp % 4 == 0); |
| dst_x *= cpp / 4; |
| dst_x2 *= cpp / 4; |
| src_x *= cpp / 4; |
| cpp = 4; |
| } |
| } |
| |
| if (!alignment_valid(brw, dst_offset, dst_tiling)) |
| return false; |
| if (!alignment_valid(brw, src_offset, src_tiling)) |
| return false; |
| |
| /* Blit pitch must be dword-aligned. Otherwise, the hardware appears to drop |
| * the low bits. Offsets must be naturally aligned. |
| */ |
| if (src_pitch % 4 != 0 || src_offset % cpp != 0 || |
| dst_pitch % 4 != 0 || dst_offset % cpp != 0) |
| return false; |
| |
| assert(cpp <= 4); |
| BR13 = br13_for_cpp(cpp) | translate_raster_op(logic_op) << 16; |
| |
| CMD = xy_blit_cmd(src_tiling, src_tr_mode, |
| dst_tiling, dst_tr_mode, |
| cpp, use_fast_copy_blit); |
| } |
| |
| /* For tiled source and destination, pitch value should be specified |
| * as a number of Dwords. |
| */ |
| if (dst_tiling != I915_TILING_NONE) |
| dst_pitch /= 4; |
| |
| if (src_tiling != I915_TILING_NONE) |
| src_pitch /= 4; |
| |
| if (dst_y2 <= dst_y || dst_x2 <= dst_x) |
| return true; |
| |
| assert(dst_x < dst_x2); |
| assert(dst_y < dst_y2); |
| |
| BEGIN_BATCH_BLT_TILED(length, dst_y_tiled, src_y_tiled); |
| OUT_BATCH(CMD | (length - 2)); |
| OUT_BATCH(BR13 | (uint16_t)dst_pitch); |
| OUT_BATCH(SET_FIELD(dst_y, BLT_Y) | SET_FIELD(dst_x, BLT_X)); |
| OUT_BATCH(SET_FIELD(dst_y2, BLT_Y) | SET_FIELD(dst_x2, BLT_X)); |
| if (brw->gen >= 8) { |
| OUT_RELOC64(dst_buffer, |
| I915_GEM_DOMAIN_RENDER, I915_GEM_DOMAIN_RENDER, |
| dst_offset); |
| } else { |
| OUT_RELOC(dst_buffer, |
| I915_GEM_DOMAIN_RENDER, I915_GEM_DOMAIN_RENDER, |
| dst_offset); |
| } |
| OUT_BATCH(SET_FIELD(src_y, BLT_Y) | SET_FIELD(src_x, BLT_X)); |
| OUT_BATCH((uint16_t)src_pitch); |
| if (brw->gen >= 8) { |
| OUT_RELOC64(src_buffer, |
| I915_GEM_DOMAIN_RENDER, 0, |
| src_offset); |
| } else { |
| OUT_RELOC(src_buffer, |
| I915_GEM_DOMAIN_RENDER, 0, |
| src_offset); |
| } |
| |
| ADVANCE_BATCH_TILED(dst_y_tiled, src_y_tiled); |
| |
| brw_emit_mi_flush(brw); |
| |
| return true; |
| } |
| |
| bool |
| intelEmitImmediateColorExpandBlit(struct brw_context *brw, |
| GLuint cpp, |
| GLubyte *src_bits, GLuint src_size, |
| GLuint fg_color, |
| GLshort dst_pitch, |
| drm_intel_bo *dst_buffer, |
| GLuint dst_offset, |
| uint32_t dst_tiling, |
| GLshort x, GLshort y, |
| GLshort w, GLshort h, |
| GLenum logic_op) |
| { |
| int dwords = ALIGN(src_size, 8) / 4; |
| uint32_t opcode, br13, blit_cmd; |
| |
| if (dst_tiling != I915_TILING_NONE) { |
| if (dst_offset & 4095) |
| return false; |
| if (dst_tiling == I915_TILING_Y) |
| return false; |
| } |
| |
| assert((logic_op >= GL_CLEAR) && (logic_op <= (GL_CLEAR + 0x0f))); |
| assert(dst_pitch > 0); |
| |
| if (w < 0 || h < 0) |
| return true; |
| |
| DBG("%s dst:buf(%p)/%d+%d %d,%d sz:%dx%d, %d bytes %d dwords\n", |
| __func__, |
| dst_buffer, dst_pitch, dst_offset, x, y, w, h, src_size, dwords); |
| |
| unsigned xy_setup_blt_length = brw->gen >= 8 ? 10 : 8; |
| intel_batchbuffer_require_space(brw, (xy_setup_blt_length * 4) + |
| (3 * 4) + dwords * 4, BLT_RING); |
| |
| opcode = XY_SETUP_BLT_CMD; |
| if (cpp == 4) |
| opcode |= XY_BLT_WRITE_ALPHA | XY_BLT_WRITE_RGB; |
| if (dst_tiling != I915_TILING_NONE) { |
| opcode |= XY_DST_TILED; |
| dst_pitch /= 4; |
| } |
| |
| br13 = dst_pitch | (translate_raster_op(logic_op) << 16) | (1 << 29); |
| br13 |= br13_for_cpp(cpp); |
| |
| blit_cmd = XY_TEXT_IMMEDIATE_BLIT_CMD | XY_TEXT_BYTE_PACKED; /* packing? */ |
| if (dst_tiling != I915_TILING_NONE) |
| blit_cmd |= XY_DST_TILED; |
| |
| BEGIN_BATCH_BLT(xy_setup_blt_length + 3); |
| OUT_BATCH(opcode | (xy_setup_blt_length - 2)); |
| OUT_BATCH(br13); |
| OUT_BATCH((0 << 16) | 0); /* clip x1, y1 */ |
| OUT_BATCH((100 << 16) | 100); /* clip x2, y2 */ |
| if (brw->gen >= 8) { |
| OUT_RELOC64(dst_buffer, |
| I915_GEM_DOMAIN_RENDER, I915_GEM_DOMAIN_RENDER, |
| dst_offset); |
| } else { |
| OUT_RELOC(dst_buffer, |
| I915_GEM_DOMAIN_RENDER, I915_GEM_DOMAIN_RENDER, |
| dst_offset); |
| } |
| OUT_BATCH(0); /* bg */ |
| OUT_BATCH(fg_color); /* fg */ |
| OUT_BATCH(0); /* pattern base addr */ |
| if (brw->gen >= 8) |
| OUT_BATCH(0); |
| |
| OUT_BATCH(blit_cmd | ((3 - 2) + dwords)); |
| OUT_BATCH(SET_FIELD(y, BLT_Y) | SET_FIELD(x, BLT_X)); |
| OUT_BATCH(SET_FIELD(y + h, BLT_Y) | SET_FIELD(x + w, BLT_X)); |
| ADVANCE_BATCH(); |
| |
| intel_batchbuffer_data(brw, src_bits, dwords * 4, BLT_RING); |
| |
| brw_emit_mi_flush(brw); |
| |
| return true; |
| } |
| |
| /* We don't have a memmove-type blit like some other hardware, so we'll do a |
| * rectangular blit covering a large space, then emit 1-scanline blit at the |
| * end to cover the last if we need. |
| */ |
| void |
| intel_emit_linear_blit(struct brw_context *brw, |
| drm_intel_bo *dst_bo, |
| unsigned int dst_offset, |
| drm_intel_bo *src_bo, |
| unsigned int src_offset, |
| unsigned int size) |
| { |
| struct gl_context *ctx = &brw->ctx; |
| GLuint pitch, height; |
| int16_t src_x, dst_x; |
| bool ok; |
| |
| do { |
| /* The pitch given to the GPU must be DWORD aligned, and |
| * we want width to match pitch. Max width is (1 << 15 - 1), |
| * rounding that down to the nearest DWORD is 1 << 15 - 4 |
| */ |
| pitch = ROUND_DOWN_TO(MIN2(size, (1 << 15) - 64), 4); |
| height = (size < pitch || pitch == 0) ? 1 : size / pitch; |
| |
| src_x = src_offset % 64; |
| dst_x = dst_offset % 64; |
| pitch = ALIGN(MIN2(size, (1 << 15) - 64), 4); |
| assert(src_x + pitch < 1 << 15); |
| assert(dst_x + pitch < 1 << 15); |
| |
| ok = intelEmitCopyBlit(brw, 1, |
| pitch, src_bo, src_offset - src_x, I915_TILING_NONE, |
| INTEL_MIPTREE_TRMODE_NONE, |
| pitch, dst_bo, dst_offset - dst_x, I915_TILING_NONE, |
| INTEL_MIPTREE_TRMODE_NONE, |
| src_x, 0, /* src x/y */ |
| dst_x, 0, /* dst x/y */ |
| MIN2(size, pitch), height, /* w, h */ |
| GL_COPY); |
| if (!ok) { |
| _mesa_problem(ctx, "Failed to linear blit %dx%d\n", |
| MIN2(size, pitch), height); |
| return; |
| } |
| |
| pitch *= height; |
| if (size <= pitch) |
| return; |
| |
| src_offset += pitch; |
| dst_offset += pitch; |
| size -= pitch; |
| } while (1); |
| } |
| |
| /** |
| * Used to initialize the alpha value of an ARGB8888 miptree after copying |
| * into it from an XRGB8888 source. |
| * |
| * This is very common with glCopyTexImage2D(). Note that the coordinates are |
| * relative to the start of the miptree, not relative to a slice within the |
| * miptree. |
| */ |
| static void |
| intel_miptree_set_alpha_to_one(struct brw_context *brw, |
| struct intel_mipmap_tree *mt, |
| int x, int y, int width, int height) |
| { |
| uint32_t BR13, CMD; |
| int pitch, cpp; |
| drm_intel_bo *aper_array[2]; |
| |
| pitch = mt->pitch; |
| cpp = mt->cpp; |
| |
| DBG("%s dst:buf(%p)/%d %d,%d sz:%dx%d\n", |
| __func__, mt->bo, pitch, x, y, width, height); |
| |
| BR13 = br13_for_cpp(cpp) | 0xf0 << 16; |
| CMD = XY_COLOR_BLT_CMD; |
| CMD |= XY_BLT_WRITE_ALPHA; |
| |
| if (mt->tiling != I915_TILING_NONE) { |
| CMD |= XY_DST_TILED; |
| pitch /= 4; |
| } |
| BR13 |= pitch; |
| |
| /* do space check before going any further */ |
| aper_array[0] = brw->batch.bo; |
| aper_array[1] = mt->bo; |
| |
| if (drm_intel_bufmgr_check_aperture_space(aper_array, |
| ARRAY_SIZE(aper_array)) != 0) { |
| intel_batchbuffer_flush(brw); |
| } |
| |
| unsigned length = brw->gen >= 8 ? 7 : 6; |
| bool dst_y_tiled = mt->tiling == I915_TILING_Y; |
| |
| /* We need to split the blit into chunks that each fit within the blitter's |
| * restrictions. We can't use a chunk size of 32768 because we need to |
| * ensure that src_tile_x + chunk_size fits. We choose 16384 because it's |
| * a nice round power of two, big enough that performance won't suffer, and |
| * small enough to guarantee everything fits. |
| */ |
| const uint32_t max_chunk_size = 16384; |
| |
| for (uint32_t chunk_x = 0; chunk_x < width; chunk_x += max_chunk_size) { |
| for (uint32_t chunk_y = 0; chunk_y < height; chunk_y += max_chunk_size) { |
| const uint32_t chunk_w = MIN2(max_chunk_size, width - chunk_x); |
| const uint32_t chunk_h = MIN2(max_chunk_size, height - chunk_y); |
| |
| uint32_t offset, tile_x, tile_y; |
| get_blit_intratile_offset_el(brw, mt, |
| x + chunk_x, y + chunk_y, |
| &offset, &tile_x, &tile_y); |
| |
| BEGIN_BATCH_BLT_TILED(length, dst_y_tiled, false); |
| OUT_BATCH(CMD | (length - 2)); |
| OUT_BATCH(BR13); |
| OUT_BATCH(SET_FIELD(y + chunk_y, BLT_Y) | |
| SET_FIELD(x + chunk_x, BLT_X)); |
| OUT_BATCH(SET_FIELD(y + chunk_y + chunk_h, BLT_Y) | |
| SET_FIELD(x + chunk_x + chunk_w, BLT_X)); |
| if (brw->gen >= 8) { |
| OUT_RELOC64(mt->bo, |
| I915_GEM_DOMAIN_RENDER, I915_GEM_DOMAIN_RENDER, |
| offset); |
| } else { |
| OUT_RELOC(mt->bo, |
| I915_GEM_DOMAIN_RENDER, I915_GEM_DOMAIN_RENDER, |
| offset); |
| } |
| OUT_BATCH(0xffffffff); /* white, but only alpha gets written */ |
| ADVANCE_BATCH_TILED(dst_y_tiled, false); |
| } |
| } |
| |
| brw_emit_mi_flush(brw); |
| } |
