--- /dev/null
+/*
+ * 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
+
+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(tiling, mt->cpp * 8, 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.
+ *
+ * The blitter's pitch is a signed 16-bit integer, but measured in bytes
+ * for linear surfaces and DWords for tiled surfaces. So the maximum
+ * pitch is 32k linear and 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,
+ dst_mt->pitch,
+ dst_mt->bo, dst_mt->offset + dst_offset,
+ dst_mt->tiling,
+ 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_access_raw(brw, src_mt, src_level, src_slice, false);
+ intel_miptree_access_raw(brw, dst_mt, dst_level, dst_slice, true);
+
+ 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_access_raw(brw, src_mt, src_level, src_slice, false);
+ intel_miptree_access_raw(brw, dst_mt, dst_level, dst_slice, true);
+
+ 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 = DIV_ROUND_UP(src_width, (int)bw);
+ src_height = DIV_ROUND_UP(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 uint32_t
+xy_blit_cmd(uint32_t src_tiling, uint32_t dst_tiling, uint32_t cpp)
+{
+ uint32_t CMD = 0;
+
+ 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,
+ int32_t src_pitch,
+ struct brw_bo *src_buffer,
+ GLuint src_offset,
+ uint32_t src_tiling,
+ int32_t dst_pitch,
+ struct brw_bo *dst_buffer,
+ GLuint dst_offset,
+ uint32_t dst_tiling,
+ GLshort src_x, GLshort src_y,
+ GLshort dst_x, GLshort dst_y,
+ GLshort w, GLshort h,
+ GLenum logic_op)
+{
+ GLuint CMD, BR13;
+ int dst_y2 = dst_y + h;
+ int dst_x2 = dst_x + w;
+ bool dst_y_tiled = dst_tiling == I915_TILING_Y;
+ bool src_y_tiled = src_tiling == I915_TILING_Y;
+ 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;
+
+ const unsigned bo_sizes = dst_buffer->size + src_buffer->size;
+
+ /* do space check before going any further */
+ if (!brw_batch_has_aperture_space(brw, bo_sizes))
+ intel_batchbuffer_flush(brw);
+
+ if (!brw_batch_has_aperture_space(brw, bo_sizes))
+ 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, cpp, &src_tile_w, &src_tile_h);
+ intel_get_tile_dims(dst_tiling, 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);
+
+ /* 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, dst_tiling, cpp);
+
+ /* 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,
+ struct brw_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,
+ struct brw_bo *dst_bo,
+ unsigned int dst_offset,
+ struct brw_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,
+ pitch, dst_bo, dst_offset - dst_x, I915_TILING_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;
+
+ 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 */
+ if (!brw_batch_has_aperture_space(brw, mt->bo->size))
+ 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);
+}
projects / mesa.git / blobdiff