From: Ilia Mirkin Date: Thu, 14 Aug 2014 04:04:41 +0000 (-0400) Subject: gallium: add opcodes/cap for fine derivative support X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=8ee74ce50f980a15ab68ad40df702831ac8d68e0;p=mesa.git gallium: add opcodes/cap for fine derivative support Signed-off-by: Ilia Mirkin Reviewed-by: Marek Olšák (v1) Reviewed-by: Roland Scheidegger (v1) v2: Reuse opcode gaps as suggested by Marek --- diff --git a/src/gallium/auxiliary/tgsi/tgsi_info.c b/src/gallium/auxiliary/tgsi/tgsi_info.c index e24348f6cb5..74d186cfdf1 100644 --- a/src/gallium/auxiliary/tgsi/tgsi_info.c +++ b/src/gallium/auxiliary/tgsi/tgsi_info.c @@ -116,8 +116,8 @@ static const struct tgsi_opcode_info opcode_info[TGSI_OPCODE_LAST] = { 0, 1, 0, 0, 0, 1, NONE, "", 76 }, /* removed */ { 0, 0, 0, 1, 1, 1, NONE, "ELSE", TGSI_OPCODE_ELSE }, { 0, 0, 0, 0, 1, 0, NONE, "ENDIF", TGSI_OPCODE_ENDIF }, - { 1, 0, 0, 0, 1, 0, NONE, "", 79 }, /* removed */ - { 0, 0, 0, 0, 1, 0, NONE, "", 80 }, /* removed */ + { 1, 1, 0, 0, 0, 0, COMP, "DDX_FINE", TGSI_OPCODE_DDX_FINE }, + { 1, 1, 0, 0, 0, 0, COMP, "DDY_FINE", TGSI_OPCODE_DDY_FINE }, { 0, 1, 0, 0, 0, 0, NONE, "PUSHA", TGSI_OPCODE_PUSHA }, { 1, 0, 0, 0, 0, 0, NONE, "POPA", TGSI_OPCODE_POPA }, { 1, 1, 0, 0, 0, 0, COMP, "CEIL", TGSI_OPCODE_CEIL }, diff --git a/src/gallium/auxiliary/tgsi/tgsi_util.c b/src/gallium/auxiliary/tgsi/tgsi_util.c index e48159cd600..e1cba95c264 100644 --- a/src/gallium/auxiliary/tgsi/tgsi_util.c +++ b/src/gallium/auxiliary/tgsi/tgsi_util.c @@ -245,6 +245,8 @@ tgsi_util_get_inst_usage_mask(const struct tgsi_full_instruction *inst, case TGSI_OPCODE_USNE: case TGSI_OPCODE_IMUL_HI: case TGSI_OPCODE_UMUL_HI: + case TGSI_OPCODE_DDX_FINE: + case TGSI_OPCODE_DDY_FINE: /* Channel-wise operations */ read_mask = write_mask; break; diff --git a/src/gallium/docs/source/screen.rst b/src/gallium/docs/source/screen.rst index 814e3aec69b..6fecc15d6b8 100644 --- a/src/gallium/docs/source/screen.rst +++ b/src/gallium/docs/source/screen.rst @@ -213,6 +213,8 @@ The integer capabilities: * ``PIPE_CAP_DRAW_INDIRECT``: Whether the driver supports taking draw arguments { count, instance_count, start, index_bias } from a PIPE_BUFFER resource. See pipe_draw_info. +* ``PIPE_CAP_TGSI_FS_FINE_DERIVATIVE``: Whether the fragment shader supports + the FINE versions of DDX/DDY. .. _pipe_capf: diff --git a/src/gallium/docs/source/tgsi.rst b/src/gallium/docs/source/tgsi.rst index ac0ea5413b3..7d5918fc4fe 100644 --- a/src/gallium/docs/source/tgsi.rst +++ b/src/gallium/docs/source/tgsi.rst @@ -433,7 +433,11 @@ This instruction replicates its result. dst = \cos{src.x} -.. opcode:: DDX - Derivative Relative To X +.. opcode:: DDX, DDX_FINE - Derivative Relative To X + +The fine variant is only used when ``PIPE_CAP_TGSI_FS_FINE_DERIVATIVE`` is +advertised. When it is, the fine version guarantees one derivative per row +while DDX is allowed to be the same for the entire 2x2 quad. .. math:: @@ -446,7 +450,11 @@ This instruction replicates its result. dst.w = partialx(src.w) -.. opcode:: DDY - Derivative Relative To Y +.. opcode:: DDY, DDY_FINE - Derivative Relative To Y + +The fine variant is only used when ``PIPE_CAP_TGSI_FS_FINE_DERIVATIVE`` is +advertised. When it is, the fine version guarantees one derivative per column +while DDY is allowed to be the same for the entire 2x2 quad. .. math:: diff --git a/src/gallium/drivers/freedreno/freedreno_screen.c b/src/gallium/drivers/freedreno/freedreno_screen.c index de69b14ce77..b156d8b3660 100644 --- a/src/gallium/drivers/freedreno/freedreno_screen.c +++ b/src/gallium/drivers/freedreno/freedreno_screen.c @@ -216,6 +216,7 @@ fd_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param) case PIPE_CAP_TEXTURE_GATHER_OFFSETS: case PIPE_CAP_TGSI_VS_WINDOW_SPACE_POSITION: case PIPE_CAP_DRAW_INDIRECT: + case PIPE_CAP_TGSI_FS_FINE_DERIVATIVE: return 0; /* Stream output. */ diff --git a/src/gallium/drivers/i915/i915_screen.c b/src/gallium/drivers/i915/i915_screen.c index ca3dd4a6f72..53d5e7580b5 100644 --- a/src/gallium/drivers/i915/i915_screen.c +++ b/src/gallium/drivers/i915/i915_screen.c @@ -231,6 +231,7 @@ i915_get_param(struct pipe_screen *screen, enum pipe_cap cap) case PIPE_CAP_TGSI_VS_LAYER_VIEWPORT: case PIPE_CAP_BUFFER_MAP_PERSISTENT_COHERENT: case PIPE_CAP_DRAW_INDIRECT: + case PIPE_CAP_TGSI_FS_FINE_DERIVATIVE: return 0; case PIPE_CAP_MIN_MAP_BUFFER_ALIGNMENT: diff --git a/src/gallium/drivers/ilo/ilo_screen.c b/src/gallium/drivers/ilo/ilo_screen.c index bd6d8ddb4e7..991d2d0de36 100644 --- a/src/gallium/drivers/ilo/ilo_screen.c +++ b/src/gallium/drivers/ilo/ilo_screen.c @@ -433,6 +433,7 @@ ilo_get_param(struct pipe_screen *screen, enum pipe_cap param) case PIPE_CAP_TGSI_VS_WINDOW_SPACE_POSITION: case PIPE_CAP_MAX_VERTEX_STREAMS: case PIPE_CAP_DRAW_INDIRECT: + case PIPE_CAP_TGSI_FS_FINE_DERIVATIVE: return 0; default: diff --git a/src/gallium/drivers/llvmpipe/lp_screen.c b/src/gallium/drivers/llvmpipe/lp_screen.c index 347b1af4f14..f4f325709f7 100644 --- a/src/gallium/drivers/llvmpipe/lp_screen.c +++ b/src/gallium/drivers/llvmpipe/lp_screen.c @@ -248,6 +248,7 @@ llvmpipe_get_param(struct pipe_screen *screen, enum pipe_cap param) case PIPE_CAP_SAMPLE_SHADING: case PIPE_CAP_TEXTURE_GATHER_OFFSETS: case PIPE_CAP_TGSI_VS_WINDOW_SPACE_POSITION: + case PIPE_CAP_TGSI_FS_FINE_DERIVATIVE: return 0; case PIPE_CAP_FAKE_SW_MSAA: return 1; diff --git a/src/gallium/drivers/nouveau/nv30/nv30_screen.c b/src/gallium/drivers/nouveau/nv30/nv30_screen.c index 2860188961a..4766955b5ee 100644 --- a/src/gallium/drivers/nouveau/nv30/nv30_screen.c +++ b/src/gallium/drivers/nouveau/nv30/nv30_screen.c @@ -148,6 +148,7 @@ nv30_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param) case PIPE_CAP_USER_VERTEX_BUFFERS: case PIPE_CAP_COMPUTE: case PIPE_CAP_DRAW_INDIRECT: + case PIPE_CAP_TGSI_FS_FINE_DERIVATIVE: return 0; } diff --git a/src/gallium/drivers/nouveau/nv50/nv50_screen.c b/src/gallium/drivers/nouveau/nv50/nv50_screen.c index 7b1b1125178..34cca3dafc8 100644 --- a/src/gallium/drivers/nouveau/nv50/nv50_screen.c +++ b/src/gallium/drivers/nouveau/nv50/nv50_screen.c @@ -200,6 +200,7 @@ nv50_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param) case PIPE_CAP_TGSI_VS_WINDOW_SPACE_POSITION: case PIPE_CAP_COMPUTE: case PIPE_CAP_DRAW_INDIRECT: + case PIPE_CAP_TGSI_FS_FINE_DERIVATIVE: return 0; } diff --git a/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c b/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c index d372a0fc36b..17aee636417 100644 --- a/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c +++ b/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c @@ -184,6 +184,7 @@ nvc0_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param) case PIPE_CAP_TGSI_VS_LAYER_VIEWPORT: case PIPE_CAP_FAKE_SW_MSAA: case PIPE_CAP_TGSI_VS_WINDOW_SPACE_POSITION: + case PIPE_CAP_TGSI_FS_FINE_DERIVATIVE: return 0; } diff --git a/src/gallium/drivers/r300/r300_screen.c b/src/gallium/drivers/r300/r300_screen.c index 4e46f77ee02..ad599e97322 100644 --- a/src/gallium/drivers/r300/r300_screen.c +++ b/src/gallium/drivers/r300/r300_screen.c @@ -178,6 +178,7 @@ static int r300_get_param(struct pipe_screen* pscreen, enum pipe_cap param) case PIPE_CAP_TEXTURE_GATHER_OFFSETS: case PIPE_CAP_TGSI_VS_WINDOW_SPACE_POSITION: case PIPE_CAP_DRAW_INDIRECT: + case PIPE_CAP_TGSI_FS_FINE_DERIVATIVE: return 0; /* SWTCL-only features. */ diff --git a/src/gallium/drivers/r600/r600_pipe.c b/src/gallium/drivers/r600/r600_pipe.c index 20d9f950e4c..8a5ba7951bb 100644 --- a/src/gallium/drivers/r600/r600_pipe.c +++ b/src/gallium/drivers/r600/r600_pipe.c @@ -319,6 +319,7 @@ static int r600_get_param(struct pipe_screen* pscreen, enum pipe_cap param) case PIPE_CAP_SAMPLE_SHADING: case PIPE_CAP_TEXTURE_GATHER_OFFSETS: case PIPE_CAP_DRAW_INDIRECT: + case PIPE_CAP_TGSI_FS_FINE_DERIVATIVE: return 0; /* Stream output. */ diff --git a/src/gallium/drivers/radeonsi/si_pipe.c b/src/gallium/drivers/radeonsi/si_pipe.c index 879387f0fba..0f10f3b7fb8 100644 --- a/src/gallium/drivers/radeonsi/si_pipe.c +++ b/src/gallium/drivers/radeonsi/si_pipe.c @@ -254,6 +254,7 @@ static int si_get_param(struct pipe_screen* pscreen, enum pipe_cap param) case PIPE_CAP_FAKE_SW_MSAA: case PIPE_CAP_TEXTURE_GATHER_OFFSETS: case PIPE_CAP_TGSI_VS_WINDOW_SPACE_POSITION: + case PIPE_CAP_TGSI_FS_FINE_DERIVATIVE: return 0; case PIPE_CAP_TEXTURE_BORDER_COLOR_QUIRK: diff --git a/src/gallium/drivers/softpipe/sp_screen.c b/src/gallium/drivers/softpipe/sp_screen.c index 7be39d4f618..5e2640dcbb1 100644 --- a/src/gallium/drivers/softpipe/sp_screen.c +++ b/src/gallium/drivers/softpipe/sp_screen.c @@ -194,6 +194,7 @@ softpipe_get_param(struct pipe_screen *screen, enum pipe_cap param) case PIPE_CAP_SAMPLE_SHADING: case PIPE_CAP_TEXTURE_GATHER_OFFSETS: case PIPE_CAP_TGSI_VS_WINDOW_SPACE_POSITION: + case PIPE_CAP_TGSI_FS_FINE_DERIVATIVE: return 0; case PIPE_CAP_FAKE_SW_MSAA: return 1; diff --git a/src/gallium/drivers/svga/svga_screen.c b/src/gallium/drivers/svga/svga_screen.c index 2fcc75c45bc..d140f561e80 100644 --- a/src/gallium/drivers/svga/svga_screen.c +++ b/src/gallium/drivers/svga/svga_screen.c @@ -278,6 +278,7 @@ svga_get_param(struct pipe_screen *screen, enum pipe_cap param) case PIPE_CAP_TEXTURE_GATHER_OFFSETS: case PIPE_CAP_TGSI_VS_WINDOW_SPACE_POSITION: case PIPE_CAP_DRAW_INDIRECT: + case PIPE_CAP_TGSI_FS_FINE_DERIVATIVE: return 0; case PIPE_CAP_MIN_MAP_BUFFER_ALIGNMENT: return 64; diff --git a/src/gallium/drivers/vc4/vc4_screen.c b/src/gallium/drivers/vc4/vc4_screen.c index c044c8ee697..7e596139224 100644 --- a/src/gallium/drivers/vc4/vc4_screen.c +++ b/src/gallium/drivers/vc4/vc4_screen.c @@ -157,6 +157,7 @@ vc4_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param) case PIPE_CAP_MAX_TEXEL_OFFSET: case PIPE_CAP_MAX_VERTEX_STREAMS: case PIPE_CAP_DRAW_INDIRECT: + case PIPE_CAP_TGSI_FS_FINE_DERIVATIVE: return 0; /* Stream output. */ diff --git a/src/gallium/include/pipe/p_defines.h b/src/gallium/include/pipe/p_defines.h index 7a10d9833f3..53d5d4b00b5 100644 --- a/src/gallium/include/pipe/p_defines.h +++ b/src/gallium/include/pipe/p_defines.h @@ -562,6 +562,7 @@ enum pipe_cap { PIPE_CAP_TGSI_VS_WINDOW_SPACE_POSITION = 99, PIPE_CAP_MAX_VERTEX_STREAMS = 100, PIPE_CAP_DRAW_INDIRECT = 101, + PIPE_CAP_TGSI_FS_FINE_DERIVATIVE = 102, }; #define PIPE_QUIRK_TEXTURE_BORDER_COLOR_SWIZZLE_NV50 (1 << 0) diff --git a/src/gallium/include/pipe/p_shader_tokens.h b/src/gallium/include/pipe/p_shader_tokens.h index 0d3ad6abb51..8ab1ea85e57 100644 --- a/src/gallium/include/pipe/p_shader_tokens.h +++ b/src/gallium/include/pipe/p_shader_tokens.h @@ -352,7 +352,10 @@ struct tgsi_property_data { #define TGSI_OPCODE_UIF 75 #define TGSI_OPCODE_ELSE 77 #define TGSI_OPCODE_ENDIF 78 - /* gap */ + +#define TGSI_OPCODE_DDX_FINE 79 +#define TGSI_OPCODE_DDY_FINE 80 + #define TGSI_OPCODE_PUSHA 81 #define TGSI_OPCODE_POPA 82 #define TGSI_OPCODE_CEIL 83