From: Jason Ekstrand Date: Thu, 1 Dec 2016 03:08:51 +0000 (-0800) Subject: i965/copy_image: Re-implement the blitter path with emit_miptree_blit X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=06d864921ee6cfd083ac3782d4434d91ec652eea;p=mesa.git i965/copy_image: Re-implement the blitter path with emit_miptree_blit By using emit_miptree_blit which does chunking, this fixes the blitter path for the case where the image is too tall to blit normally. We also pull it into intel_blit as intel_miptree_copy. This matches the naming of the blorp blit and copy functions brw_blorp_blit and brw_blorp_copy. Reviewed-by: Anuj Phogat Cc: "13.0" --- diff --git a/src/mesa/drivers/dri/i965/intel_blit.c b/src/mesa/drivers/dri/i965/intel_blit.c index 15e45d43b5b..03a35ee0bd4 100644 --- a/src/mesa/drivers/dri/i965/intel_blit.c +++ b/src/mesa/drivers/dri/i965/intel_blit.c @@ -386,6 +386,74 @@ intel_miptree_blit(struct brw_context *brw, 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); + + assert(src_x % bw == 0); + assert(src_y % bh == 0); + assert(src_width % bw == 0); + assert(src_height % bh == 0); + + 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) { diff --git a/src/mesa/drivers/dri/i965/intel_blit.h b/src/mesa/drivers/dri/i965/intel_blit.h index f4ed919b000..6925795656a 100644 --- a/src/mesa/drivers/dri/i965/intel_blit.h +++ b/src/mesa/drivers/dri/i965/intel_blit.h @@ -58,6 +58,15 @@ bool intel_miptree_blit(struct brw_context *brw, uint32_t width, uint32_t height, GLenum logicop); +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); + bool intelEmitImmediateColorExpandBlit(struct brw_context *brw, GLuint cpp, diff --git a/src/mesa/drivers/dri/i965/intel_copy_image.c b/src/mesa/drivers/dri/i965/intel_copy_image.c index 3b5bf31f5d2..56eaed6270f 100644 --- a/src/mesa/drivers/dri/i965/intel_copy_image.c +++ b/src/mesa/drivers/dri/i965/intel_copy_image.c @@ -34,98 +34,6 @@ #include "main/teximage.h" #include "drivers/common/meta.h" -static bool -copy_image_with_blitter(struct brw_context *brw, - struct intel_mipmap_tree *src_mt, int src_level, - int src_x, int src_y, int src_z, - struct intel_mipmap_tree *dst_mt, int dst_level, - int dst_x, int dst_y, int dst_z, - int src_width, int src_height) -{ - GLuint bw, bh; - uint32_t src_image_x, src_image_y, dst_image_x, dst_image_y; - - /* 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; - - /* 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. - * - * 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. - */ - if (src_mt->pitch >= 32768 || - dst_mt->pitch >= 32768) { - perf_debug("Falling back due to >=32k pitch\n"); - return false; - } - - intel_miptree_get_image_offset(src_mt, src_level, src_z, - &src_image_x, &src_image_y); - - if (_mesa_is_format_compressed(src_mt->format)) { - _mesa_get_format_block_size(src_mt->format, &bw, &bh); - - assert(src_x % bw == 0); - assert(src_y % bh == 0); - assert(src_width % bw == 0); - assert(src_height % bh == 0); - - 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; - - intel_miptree_get_image_offset(dst_mt, dst_level, dst_z, - &dst_image_x, &dst_image_y); - - if (_mesa_is_format_compressed(dst_mt->format)) { - _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 intelEmitCopyBlit(brw, - src_mt->cpp, - src_mt->pitch, - src_mt->bo, src_mt->offset, - src_mt->tiling, - src_mt->tr_mode, - dst_mt->pitch, - dst_mt->bo, dst_mt->offset, - dst_mt->tiling, - dst_mt->tr_mode, - src_x, src_y, - dst_x, dst_y, - src_width, src_height, - GL_COPY); -} - static void copy_image_with_memcpy(struct brw_context *brw, struct intel_mipmap_tree *src_mt, int src_level, @@ -246,11 +154,9 @@ copy_miptrees(struct brw_context *brw, if (src_height < bh) src_height = ALIGN_NPOT(src_height, bh); - if (copy_image_with_blitter(brw, src_mt, src_level, - src_x, src_y, src_z, - dst_mt, dst_level, - dst_x, dst_y, dst_z, - src_width, src_height)) + if (intel_miptree_copy(brw, src_mt, src_level, src_z, src_x, src_y, + dst_mt, dst_level, dst_z, dst_x, dst_y, + src_width, src_height)) return; /* This is a worst-case scenario software fallback that maps the two