From: Marek Olšák Date: Thu, 14 Mar 2013 16:18:43 +0000 (+0100) Subject: gallium,st/mesa: don't use blit-based transfers with software rasterizers X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=3e10ab6b22341c06a9352b1e029b923f4d8405b9;p=mesa.git gallium,st/mesa: don't use blit-based transfers with software rasterizers The blit-based paths for TexImage, GetTexImage, and ReadPixels aren't very fast with software rasterizer. Now Gallium drivers have the ability to turn them off. Reviewed-by: Brian Paul Tested-by: Brian Paul --- diff --git a/src/gallium/docs/source/screen.rst b/src/gallium/docs/source/screen.rst index 0550a30714a..9b8704904ab 100644 --- a/src/gallium/docs/source/screen.rst +++ b/src/gallium/docs/source/screen.rst @@ -145,6 +145,10 @@ The integer capabilities: TEXCOORD semantic. Also, TGSI_SEMANTIC_PCOORD becomes available, which labels a fragment shader input that will always be replaced with sprite coordinates. +* ``PIPE_CAP_PREFER_BLIT_BASED_TEXTURE_TRANSFER``: Whether it is preferable + to use a blit to implement a texture transfer which needs format conversions + and swizzling in state trackers. Generally, all hardware drivers with + dedicated memory should return 1 and all software rasterizers should return 0. .. _pipe_capf: diff --git a/src/gallium/drivers/llvmpipe/lp_screen.c b/src/gallium/drivers/llvmpipe/lp_screen.c index 6760db0b38f..e8c6ab1f806 100644 --- a/src/gallium/drivers/llvmpipe/lp_screen.c +++ b/src/gallium/drivers/llvmpipe/lp_screen.c @@ -222,6 +222,8 @@ llvmpipe_get_param(struct pipe_screen *screen, enum pipe_cap param) return 1; case PIPE_CAP_TEXTURE_BUFFER_OFFSET_ALIGNMENT: return 1; + case PIPE_CAP_PREFER_BLIT_BASED_TEXTURE_TRANSFER: + return 0; } /* should only get here on unhandled cases */ debug_printf("Unexpected PIPE_CAP %d query\n", param); diff --git a/src/gallium/drivers/nv30/nv30_screen.c b/src/gallium/drivers/nv30/nv30_screen.c index e17ee76fbd1..4084869dba8 100644 --- a/src/gallium/drivers/nv30/nv30_screen.c +++ b/src/gallium/drivers/nv30/nv30_screen.c @@ -126,6 +126,7 @@ nv30_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param) case PIPE_CAP_VERTEX_BUFFER_OFFSET_4BYTE_ALIGNED_ONLY: case PIPE_CAP_VERTEX_BUFFER_STRIDE_4BYTE_ALIGNED_ONLY: case PIPE_CAP_VERTEX_ELEMENT_SRC_OFFSET_4BYTE_ALIGNED_ONLY: + case PIPE_CAP_PREFER_BLIT_BASED_TEXTURE_TRANSFER: return 1; default: debug_printf("unknown param %d\n", param); diff --git a/src/gallium/drivers/nv50/nv50_screen.c b/src/gallium/drivers/nv50/nv50_screen.c index fb29b2290c2..0a20ae3e924 100644 --- a/src/gallium/drivers/nv50/nv50_screen.c +++ b/src/gallium/drivers/nv50/nv50_screen.c @@ -187,6 +187,8 @@ nv50_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param) case PIPE_CAP_TGSI_TEXCOORD: case PIPE_CAP_TEXTURE_MULTISAMPLE: return 0; + case PIPE_CAP_PREFER_BLIT_BASED_TEXTURE_TRANSFER: + return 1; default: NOUVEAU_ERR("unknown PIPE_CAP %d\n", param); return 0; diff --git a/src/gallium/drivers/nvc0/nvc0_screen.c b/src/gallium/drivers/nvc0/nvc0_screen.c index 73cf0af4d1d..b6cf2ca8a1f 100644 --- a/src/gallium/drivers/nvc0/nvc0_screen.c +++ b/src/gallium/drivers/nvc0/nvc0_screen.c @@ -179,6 +179,8 @@ nvc0_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param) return 0; case PIPE_CAP_COMPUTE: return (class_3d >= NVE4_3D_CLASS) ? 1 : 0; + case PIPE_CAP_PREFER_BLIT_BASED_TEXTURE_TRANSFER: + return 1; default: NOUVEAU_ERR("unknown PIPE_CAP %d\n", param); return 0; diff --git a/src/gallium/drivers/r300/r300_screen.c b/src/gallium/drivers/r300/r300_screen.c index 46fb869cb72..bd16c3b76b1 100644 --- a/src/gallium/drivers/r300/r300_screen.c +++ b/src/gallium/drivers/r300/r300_screen.c @@ -106,6 +106,7 @@ static int r300_get_param(struct pipe_screen* pscreen, enum pipe_cap param) case PIPE_CAP_USER_INDEX_BUFFERS: case PIPE_CAP_USER_CONSTANT_BUFFERS: case PIPE_CAP_DEPTH_CLIP_DISABLE: /* XXX implemented, but breaks Regnum Online */ + case PIPE_CAP_PREFER_BLIT_BASED_TEXTURE_TRANSFER: return 1; case PIPE_CAP_MIN_MAP_BUFFER_ALIGNMENT: diff --git a/src/gallium/drivers/r600/r600_pipe.c b/src/gallium/drivers/r600/r600_pipe.c index 7a84f3d5c6e..81448d49ee9 100644 --- a/src/gallium/drivers/r600/r600_pipe.c +++ b/src/gallium/drivers/r600/r600_pipe.c @@ -564,6 +564,7 @@ static int r600_get_param(struct pipe_screen* pscreen, enum pipe_cap param) case PIPE_CAP_START_INSTANCE: case PIPE_CAP_MAX_DUAL_SOURCE_RENDER_TARGETS: case PIPE_CAP_TEXTURE_BUFFER_OBJECTS: + case PIPE_CAP_PREFER_BLIT_BASED_TEXTURE_TRANSFER: return 1; case PIPE_CAP_TGSI_TEXCOORD: return 0; diff --git a/src/gallium/drivers/radeonsi/radeonsi_pipe.c b/src/gallium/drivers/radeonsi/radeonsi_pipe.c index 859843867ce..672017a4ec7 100644 --- a/src/gallium/drivers/radeonsi/radeonsi_pipe.c +++ b/src/gallium/drivers/radeonsi/radeonsi_pipe.c @@ -329,6 +329,7 @@ static int r600_get_param(struct pipe_screen* pscreen, enum pipe_cap param) case PIPE_CAP_USER_CONSTANT_BUFFERS: case PIPE_CAP_START_INSTANCE: case PIPE_CAP_NPOT_TEXTURES: + case PIPE_CAP_PREFER_BLIT_BASED_TEXTURE_TRANSFER: return 1; case PIPE_CAP_TGSI_TEXCOORD: return 0; diff --git a/src/gallium/drivers/softpipe/sp_screen.c b/src/gallium/drivers/softpipe/sp_screen.c index 937035e5511..0261c69197c 100644 --- a/src/gallium/drivers/softpipe/sp_screen.c +++ b/src/gallium/drivers/softpipe/sp_screen.c @@ -174,6 +174,7 @@ softpipe_get_param(struct pipe_screen *screen, enum pipe_cap param) case PIPE_CAP_TEXTURE_BUFFER_OFFSET_ALIGNMENT: return 0; case PIPE_CAP_TGSI_TEXCOORD: + case PIPE_CAP_PREFER_BLIT_BASED_TEXTURE_TRANSFER: return 0; } /* should only get here on unhandled cases */ diff --git a/src/gallium/drivers/svga/svga_screen.c b/src/gallium/drivers/svga/svga_screen.c index f0831b9f2fe..0558a46c0aa 100644 --- a/src/gallium/drivers/svga/svga_screen.c +++ b/src/gallium/drivers/svga/svga_screen.c @@ -224,6 +224,9 @@ svga_get_param(struct pipe_screen *screen, enum pipe_cap param) case PIPE_CAP_GLSL_FEATURE_LEVEL: return 120; + case PIPE_CAP_PREFER_BLIT_BASED_TEXTURE_TRANSFER: + return 1; + /* Unsupported features */ case PIPE_CAP_QUADS_FOLLOW_PROVOKING_VERTEX_CONVENTION: case PIPE_CAP_TEXTURE_MIRROR_CLAMP: diff --git a/src/gallium/include/pipe/p_defines.h b/src/gallium/include/pipe/p_defines.h index 7f20b992a13..f59e78a1a9e 100644 --- a/src/gallium/include/pipe/p_defines.h +++ b/src/gallium/include/pipe/p_defines.h @@ -499,7 +499,8 @@ enum pipe_cap { PIPE_CAP_CUBE_MAP_ARRAY = 76, PIPE_CAP_TEXTURE_BUFFER_OBJECTS = 77, PIPE_CAP_TEXTURE_BUFFER_OFFSET_ALIGNMENT = 78, - PIPE_CAP_TGSI_TEXCOORD = 79 + PIPE_CAP_TGSI_TEXCOORD = 79, + PIPE_CAP_PREFER_BLIT_BASED_TEXTURE_TRANSFER = 80 }; /** diff --git a/src/mesa/state_tracker/st_cb_readpixels.c b/src/mesa/state_tracker/st_cb_readpixels.c index b524738ae29..bfed988701a 100644 --- a/src/mesa/state_tracker/st_cb_readpixels.c +++ b/src/mesa/state_tracker/st_cb_readpixels.c @@ -83,6 +83,10 @@ st_readpixels(struct gl_context *ctx, GLint x, GLint y, st_validate_state(st); st_flush_bitmap_cache(st); + if (!st->prefer_blit_based_texture_transfer) { + goto fallback; + } + /* This must be done after state validation. */ src = strb->texture; diff --git a/src/mesa/state_tracker/st_cb_texture.c b/src/mesa/state_tracker/st_cb_texture.c index 7307c6052c5..94fbbf7bed8 100644 --- a/src/mesa/state_tracker/st_cb_texture.c +++ b/src/mesa/state_tracker/st_cb_texture.c @@ -608,6 +608,10 @@ st_TexSubImage(struct gl_context *ctx, GLuint dims, unsigned bind; GLubyte *map; + if (!st->prefer_blit_based_texture_transfer) { + goto fallback; + } + if (!dst) { goto fallback; } @@ -860,6 +864,10 @@ st_GetTexImage(struct gl_context * ctx, ubyte *map = NULL; boolean done = FALSE; + if (!st->prefer_blit_based_texture_transfer) { + goto fallback; + } + if (!stImage->pt) { goto fallback; } diff --git a/src/mesa/state_tracker/st_context.c b/src/mesa/state_tracker/st_context.c index e2d074d14a4..cc87f2bb38d 100644 --- a/src/mesa/state_tracker/st_context.c +++ b/src/mesa/state_tracker/st_context.c @@ -182,6 +182,8 @@ st_create_context_priv( struct gl_context *ctx, struct pipe_context *pipe, st->has_stencil_export = screen->get_param(screen, PIPE_CAP_SHADER_STENCIL_EXPORT); st->has_shader_model3 = screen->get_param(screen, PIPE_CAP_SM3); + st->prefer_blit_based_texture_transfer = screen->get_param(screen, + PIPE_CAP_PREFER_BLIT_BASED_TEXTURE_TRANSFER); st->needs_texcoord_semantic = screen->get_param(screen, PIPE_CAP_TGSI_TEXCOORD); diff --git a/src/mesa/state_tracker/st_context.h b/src/mesa/state_tracker/st_context.h index c6c68adcfb2..8786a036ff4 100644 --- a/src/mesa/state_tracker/st_context.h +++ b/src/mesa/state_tracker/st_context.h @@ -84,6 +84,7 @@ struct st_context boolean has_stencil_export; /**< can do shader stencil export? */ boolean has_time_elapsed; boolean has_shader_model3; + boolean prefer_blit_based_texture_transfer; boolean needs_texcoord_semantic;