From f3b37e321fe5ea8a8c0ff026636d69ce90437a6f Mon Sep 17 00:00:00 2001 From: =?utf8?q?Marek=20Ol=C5=A1=C3=A1k?= Date: Sun, 27 Sep 2015 19:32:07 +0200 Subject: [PATCH] gallium: add per-sample interpolation control into rasterizer statOAe Required by ARB_sample_shading for drivers that don't want a shader variant in st/mesa. Reviewed-by: Ilia Mirkin Acked-by: Roland Scheidegger --- src/gallium/docs/source/screen.rst | 9 +++++++++ src/gallium/drivers/freedreno/freedreno_screen.c | 1 + src/gallium/drivers/i915/i915_screen.c | 1 + src/gallium/drivers/ilo/ilo_screen.c | 1 + src/gallium/drivers/llvmpipe/lp_screen.c | 1 + src/gallium/drivers/nouveau/nv30/nv30_screen.c | 1 + src/gallium/drivers/nouveau/nv50/nv50_screen.c | 1 + src/gallium/drivers/nouveau/nvc0/nvc0_screen.c | 1 + src/gallium/drivers/r300/r300_screen.c | 1 + src/gallium/drivers/r600/r600_pipe.c | 1 + src/gallium/drivers/radeonsi/si_pipe.c | 1 + src/gallium/drivers/softpipe/sp_screen.c | 1 + src/gallium/drivers/svga/svga_screen.c | 1 + src/gallium/drivers/vc4/vc4_screen.c | 1 + src/gallium/include/pipe/p_defines.h | 1 + src/gallium/include/pipe/p_state.h | 1 + 16 files changed, 24 insertions(+) diff --git a/src/gallium/docs/source/screen.rst b/src/gallium/docs/source/screen.rst index e780047..e08844b 100644 --- a/src/gallium/docs/source/screen.rst +++ b/src/gallium/docs/source/screen.rst @@ -268,6 +268,15 @@ The integer capabilities: bounds_max states of pipe_depth_stencil_alpha_state behave according to the GL_EXT_depth_bounds_test specification. * ``PIPE_CAP_TGSI_TXQS``: Whether the `TXQS` opcode is supported +* ``PIPE_CAP_FORCE_PERSAMPLE_INTERP``: If the driver can force per-sample + interpolation for all fragment shader inputs if + pipe_rasterizer_state::force_persample_interp is set. This is only used + by GL3-level sample shading (ARB_sample_shading). GL4-level sample shading + (ARB_gpu_shader5) doesn't use this. While GL3 hardware has a state for it, + GL4 hardware will likely need to emulate it with a shader variant, or by + selecting the interpolation weights with a conditional assignment + in the shader. + .. _pipe_capf: diff --git a/src/gallium/drivers/freedreno/freedreno_screen.c b/src/gallium/drivers/freedreno/freedreno_screen.c index 9a684d4..0d01005 100644 --- a/src/gallium/drivers/freedreno/freedreno_screen.c +++ b/src/gallium/drivers/freedreno/freedreno_screen.c @@ -235,6 +235,7 @@ fd_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param) case PIPE_CAP_MAX_SHADER_PATCH_VARYINGS: case PIPE_CAP_DEPTH_BOUNDS_TEST: case PIPE_CAP_TGSI_TXQS: + case PIPE_CAP_FORCE_PERSAMPLE_INTERP: return 0; case PIPE_CAP_MAX_VIEWPORTS: diff --git a/src/gallium/drivers/i915/i915_screen.c b/src/gallium/drivers/i915/i915_screen.c index 51c64ed..9d6b3d3 100644 --- a/src/gallium/drivers/i915/i915_screen.c +++ b/src/gallium/drivers/i915/i915_screen.c @@ -248,6 +248,7 @@ i915_get_param(struct pipe_screen *screen, enum pipe_cap cap) case PIPE_CAP_TEXTURE_HALF_FLOAT_LINEAR: case PIPE_CAP_DEPTH_BOUNDS_TEST: case PIPE_CAP_TGSI_TXQS: + case PIPE_CAP_FORCE_PERSAMPLE_INTERP: return 0; case PIPE_CAP_MAX_DUAL_SOURCE_RENDER_TARGETS: diff --git a/src/gallium/drivers/ilo/ilo_screen.c b/src/gallium/drivers/ilo/ilo_screen.c index 9e37e24..76812a6 100644 --- a/src/gallium/drivers/ilo/ilo_screen.c +++ b/src/gallium/drivers/ilo/ilo_screen.c @@ -470,6 +470,7 @@ ilo_get_param(struct pipe_screen *screen, enum pipe_cap param) case PIPE_CAP_MAX_SHADER_PATCH_VARYINGS: case PIPE_CAP_DEPTH_BOUNDS_TEST: case PIPE_CAP_TGSI_TXQS: + case PIPE_CAP_FORCE_PERSAMPLE_INTERP: return 0; case PIPE_CAP_VENDOR_ID: diff --git a/src/gallium/drivers/llvmpipe/lp_screen.c b/src/gallium/drivers/llvmpipe/lp_screen.c index 697e3d9..50c3781 100644 --- a/src/gallium/drivers/llvmpipe/lp_screen.c +++ b/src/gallium/drivers/llvmpipe/lp_screen.c @@ -297,6 +297,7 @@ llvmpipe_get_param(struct pipe_screen *screen, enum pipe_cap param) case PIPE_CAP_MAX_SHADER_PATCH_VARYINGS: case PIPE_CAP_DEPTH_BOUNDS_TEST: case PIPE_CAP_TGSI_TXQS: + case PIPE_CAP_FORCE_PERSAMPLE_INTERP: return 0; } /* should only get here on unhandled cases */ diff --git a/src/gallium/drivers/nouveau/nv30/nv30_screen.c b/src/gallium/drivers/nouveau/nv30/nv30_screen.c index 806d4e6..39267b3 100644 --- a/src/gallium/drivers/nouveau/nv30/nv30_screen.c +++ b/src/gallium/drivers/nouveau/nv30/nv30_screen.c @@ -170,6 +170,7 @@ nv30_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param) case PIPE_CAP_TEXTURE_FLOAT_LINEAR: case PIPE_CAP_TEXTURE_HALF_FLOAT_LINEAR: case PIPE_CAP_TGSI_TXQS: + case PIPE_CAP_FORCE_PERSAMPLE_INTERP: return 0; case PIPE_CAP_VENDOR_ID: diff --git a/src/gallium/drivers/nouveau/nv50/nv50_screen.c b/src/gallium/drivers/nouveau/nv50/nv50_screen.c index c3bbc83..6012ff6 100644 --- a/src/gallium/drivers/nouveau/nv50/nv50_screen.c +++ b/src/gallium/drivers/nouveau/nv50/nv50_screen.c @@ -215,6 +215,7 @@ nv50_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param) case PIPE_CAP_RESOURCE_FROM_USER_MEMORY: case PIPE_CAP_DEVICE_RESET_STATUS_QUERY: case PIPE_CAP_MAX_SHADER_PATCH_VARYINGS: + case PIPE_CAP_FORCE_PERSAMPLE_INTERP: return 0; case PIPE_CAP_VENDOR_ID: diff --git a/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c b/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c index 1909b91..32da76c 100644 --- a/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c +++ b/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c @@ -201,6 +201,7 @@ nvc0_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param) case PIPE_CAP_VERTEXID_NOBASE: case PIPE_CAP_RESOURCE_FROM_USER_MEMORY: case PIPE_CAP_DEVICE_RESET_STATUS_QUERY: + case PIPE_CAP_FORCE_PERSAMPLE_INTERP: return 0; case PIPE_CAP_VENDOR_ID: diff --git a/src/gallium/drivers/r300/r300_screen.c b/src/gallium/drivers/r300/r300_screen.c index e669ba2..1165ac8 100644 --- a/src/gallium/drivers/r300/r300_screen.c +++ b/src/gallium/drivers/r300/r300_screen.c @@ -196,6 +196,7 @@ static int r300_get_param(struct pipe_screen* pscreen, enum pipe_cap param) case PIPE_CAP_TEXTURE_HALF_FLOAT_LINEAR: case PIPE_CAP_DEPTH_BOUNDS_TEST: case PIPE_CAP_TGSI_TXQS: + case PIPE_CAP_FORCE_PERSAMPLE_INTERP: return 0; /* SWTCL-only features. */ diff --git a/src/gallium/drivers/r600/r600_pipe.c b/src/gallium/drivers/r600/r600_pipe.c index 36d7e68..efb4889 100644 --- a/src/gallium/drivers/r600/r600_pipe.c +++ b/src/gallium/drivers/r600/r600_pipe.c @@ -342,6 +342,7 @@ static int r600_get_param(struct pipe_screen* pscreen, enum pipe_cap param) case PIPE_CAP_VERTEXID_NOBASE: case PIPE_CAP_MAX_SHADER_PATCH_VARYINGS: case PIPE_CAP_DEPTH_BOUNDS_TEST: + case PIPE_CAP_FORCE_PERSAMPLE_INTERP: return 0; /* Stream output. */ diff --git a/src/gallium/drivers/radeonsi/si_pipe.c b/src/gallium/drivers/radeonsi/si_pipe.c index cdd33aa..a784db6 100644 --- a/src/gallium/drivers/radeonsi/si_pipe.c +++ b/src/gallium/drivers/radeonsi/si_pipe.c @@ -336,6 +336,7 @@ static int si_get_param(struct pipe_screen* pscreen, enum pipe_cap param) case PIPE_CAP_TEXTURE_GATHER_OFFSETS: case PIPE_CAP_SAMPLER_VIEW_TARGET: case PIPE_CAP_VERTEXID_NOBASE: + case PIPE_CAP_FORCE_PERSAMPLE_INTERP: return 0; case PIPE_CAP_MAX_SHADER_PATCH_VARYINGS: diff --git a/src/gallium/drivers/softpipe/sp_screen.c b/src/gallium/drivers/softpipe/sp_screen.c index d8606f3..d468cf4 100644 --- a/src/gallium/drivers/softpipe/sp_screen.c +++ b/src/gallium/drivers/softpipe/sp_screen.c @@ -247,6 +247,7 @@ softpipe_get_param(struct pipe_screen *screen, enum pipe_cap param) case PIPE_CAP_MAX_SHADER_PATCH_VARYINGS: case PIPE_CAP_DEPTH_BOUNDS_TEST: case PIPE_CAP_TGSI_TXQS: + case PIPE_CAP_FORCE_PERSAMPLE_INTERP: 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 44b6f4a..e0a2878 100644 --- a/src/gallium/drivers/svga/svga_screen.c +++ b/src/gallium/drivers/svga/svga_screen.c @@ -380,6 +380,7 @@ svga_get_param(struct pipe_screen *screen, enum pipe_cap param) case PIPE_CAP_TEXTURE_HALF_FLOAT_LINEAR: case PIPE_CAP_DEPTH_BOUNDS_TEST: case PIPE_CAP_TGSI_TXQS: + case PIPE_CAP_FORCE_PERSAMPLE_INTERP: return 0; } diff --git a/src/gallium/drivers/vc4/vc4_screen.c b/src/gallium/drivers/vc4/vc4_screen.c index c4b52e1..739ac86 100644 --- a/src/gallium/drivers/vc4/vc4_screen.c +++ b/src/gallium/drivers/vc4/vc4_screen.c @@ -181,6 +181,7 @@ vc4_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param) case PIPE_CAP_TEXTURE_HALF_FLOAT_LINEAR: case PIPE_CAP_DEPTH_BOUNDS_TEST: case PIPE_CAP_TGSI_TXQS: + case PIPE_CAP_FORCE_PERSAMPLE_INTERP: return 0; /* Stream output. */ diff --git a/src/gallium/include/pipe/p_defines.h b/src/gallium/include/pipe/p_defines.h index 47fa82a..a494715 100644 --- a/src/gallium/include/pipe/p_defines.h +++ b/src/gallium/include/pipe/p_defines.h @@ -631,6 +631,7 @@ enum pipe_cap PIPE_CAP_TEXTURE_HALF_FLOAT_LINEAR, PIPE_CAP_DEPTH_BOUNDS_TEST, PIPE_CAP_TGSI_TXQS, + PIPE_CAP_FORCE_PERSAMPLE_INTERP, }; #define PIPE_QUIRK_TEXTURE_BORDER_COLOR_SWIZZLE_NV50 (1 << 0) diff --git a/src/gallium/include/pipe/p_state.h b/src/gallium/include/pipe/p_state.h index 266ebba..4bf8d46 100644 --- a/src/gallium/include/pipe/p_state.h +++ b/src/gallium/include/pipe/p_state.h @@ -103,6 +103,7 @@ struct pipe_rasterizer_state unsigned point_tri_clip:1; /** large points clipped as tris or points */ unsigned point_size_per_vertex:1; /**< size computed in vertex shader */ unsigned multisample:1; /* XXX maybe more ms state in future */ + unsigned force_persample_interp:1; unsigned line_smooth:1; unsigned line_stipple_enable:1; unsigned line_last_pixel:1; -- 2.7.4