gallium: create TGSI_PROPERTY to disable viewport and clipping
Marek v2: add a cap Signed-off-by: Marek Olšák <marek.olsak@amd.com>
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@ -122,6 +122,7 @@ const char *tgsi_property_names[TGSI_PROPERTY_COUNT] =
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"FS_DEPTH_LAYOUT",
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"VS_PROHIBIT_UCPS",
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"GS_INVOCATIONS",
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"VS_POSITION_WINDOW_SPACE"
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};
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const char *tgsi_type_names[5] =
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@ -173,6 +173,7 @@ struct ureg_program
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unsigned char property_fs_coord_pixel_center; /* = TGSI_FS_COORD_PIXEL_CENTER_* */
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unsigned char property_fs_color0_writes_all_cbufs; /* = TGSI_FS_COLOR0_WRITES_ALL_CBUFS * */
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unsigned char property_fs_depth_layout; /* TGSI_FS_DEPTH_LAYOUT */
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boolean property_vs_window_space_position; /* TGSI_VS_WINDOW_SPACE_POSITION */
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unsigned nr_addrs;
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unsigned nr_preds;
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@ -331,6 +332,13 @@ ureg_property_fs_depth_layout(struct ureg_program *ureg,
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ureg->property_fs_depth_layout = fs_depth_layout;
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}
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void
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ureg_property_vs_window_space_position(struct ureg_program *ureg,
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boolean vs_window_space_position)
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{
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ureg->property_vs_window_space_position = vs_window_space_position;
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}
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struct ureg_src
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ureg_DECL_fs_input_cyl_centroid(struct ureg_program *ureg,
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unsigned semantic_name,
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@ -1508,6 +1516,14 @@ static void emit_decls( struct ureg_program *ureg )
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ureg->property_fs_depth_layout);
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}
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if (ureg->property_vs_window_space_position) {
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assert(ureg->processor == TGSI_PROCESSOR_VERTEX);
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emit_property(ureg,
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TGSI_PROPERTY_VS_WINDOW_SPACE_POSITION,
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ureg->property_vs_window_space_position);
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}
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if (ureg->processor == TGSI_PROCESSOR_VERTEX) {
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for (i = 0; i < UREG_MAX_INPUT; i++) {
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if (ureg->vs_inputs[i/32] & (1 << (i%32))) {
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@ -184,6 +184,10 @@ void
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ureg_property_fs_depth_layout(struct ureg_program *ureg,
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unsigned fs_depth_layout);
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void
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ureg_property_vs_window_space_position(struct ureg_program *ureg,
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boolean vs_window_space_position);
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/***********************************************************************
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* Build shader declarations:
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@ -202,6 +202,9 @@ The integer capabilities:
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implemented.
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* ``PIPE_CAP_TEXTURE_GATHER_OFFSETS``: Whether the ``TG4`` instruction can
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accept 4 offsets.
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* ``PIPE_CAP_TGSI_VS_WINDOW_SPACE_POSITION``: Whether
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TGSI_PROPERTY_VS_WINDOW_SPACE_POSITION is supported, which disables clipping
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and viewport transformation.
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.. _pipe_capf:
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@ -2848,6 +2848,15 @@ input primitive. Each invocation will have a different
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TGSI_SEMANTIC_INVOCATIONID system value set. If not specified, assumed to
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be 1.
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VS_WINDOW_SPACE_POSITION
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""""""""""""""""""""""""""
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If this property is set on the vertex shader, the TGSI_SEMANTIC_POSITION output
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is assumed to contain window space coordinates.
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Division of X,Y,Z by W and the viewport transformation are disabled, and 1/W is
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directly taken from the 4-th component of the shader output.
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Naturally, clipping is not performed on window coordinates either.
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The effect of this property is undefined if a geometry or tessellation shader
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are in use.
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Texture Sampling and Texture Formats
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------------------------------------
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@ -214,6 +214,7 @@ fd_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
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case PIPE_CAP_TEXTURE_QUERY_LOD:
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case PIPE_CAP_SAMPLE_SHADING:
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case PIPE_CAP_TEXTURE_GATHER_OFFSETS:
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case PIPE_CAP_TGSI_VS_WINDOW_SPACE_POSITION:
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return 0;
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/* Stream output. */
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@ -222,6 +222,7 @@ i915_get_param(struct pipe_screen *screen, enum pipe_cap cap)
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case PIPE_CAP_TEXTURE_QUERY_LOD:
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case PIPE_CAP_SAMPLE_SHADING:
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case PIPE_CAP_TEXTURE_GATHER_OFFSETS:
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case PIPE_CAP_TGSI_VS_WINDOW_SPACE_POSITION:
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return 0;
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case PIPE_CAP_MAX_DUAL_SOURCE_RENDER_TARGETS:
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@ -441,6 +441,7 @@ ilo_get_param(struct pipe_screen *screen, enum pipe_cap param)
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case PIPE_CAP_TEXTURE_QUERY_LOD:
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case PIPE_CAP_SAMPLE_SHADING:
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case PIPE_CAP_TEXTURE_GATHER_OFFSETS:
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case PIPE_CAP_TGSI_VS_WINDOW_SPACE_POSITION:
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return 0;
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default:
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@ -243,6 +243,7 @@ llvmpipe_get_param(struct pipe_screen *screen, enum pipe_cap param)
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case PIPE_CAP_TEXTURE_QUERY_LOD:
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case PIPE_CAP_SAMPLE_SHADING:
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case PIPE_CAP_TEXTURE_GATHER_OFFSETS:
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case PIPE_CAP_TGSI_VS_WINDOW_SPACE_POSITION:
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return 0;
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case PIPE_CAP_FAKE_SW_MSAA:
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return 1;
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@ -137,6 +137,7 @@ nv30_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
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case PIPE_CAP_TEXTURE_QUERY_LOD:
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case PIPE_CAP_SAMPLE_SHADING:
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case PIPE_CAP_TEXTURE_GATHER_OFFSETS:
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case PIPE_CAP_TGSI_VS_WINDOW_SPACE_POSITION:
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return 0;
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case PIPE_CAP_VERTEX_BUFFER_OFFSET_4BYTE_ALIGNED_ONLY:
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case PIPE_CAP_VERTEX_BUFFER_STRIDE_4BYTE_ALIGNED_ONLY:
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@ -199,6 +199,7 @@ nv50_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
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case PIPE_CAP_TEXTURE_GATHER_SM5:
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case PIPE_CAP_FAKE_SW_MSAA:
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case PIPE_CAP_TEXTURE_GATHER_OFFSETS:
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case PIPE_CAP_TGSI_VS_WINDOW_SPACE_POSITION:
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return 0;
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case PIPE_CAP_MAX_VIEWPORTS:
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return NV50_MAX_VIEWPORTS;
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@ -190,6 +190,8 @@ nvc0_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
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return 1;
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case PIPE_CAP_MAX_TEXTURE_GATHER_COMPONENTS:
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return 4;
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case PIPE_CAP_TGSI_VS_WINDOW_SPACE_POSITION:
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return 0;
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default:
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NOUVEAU_ERR("unknown PIPE_CAP %d\n", param);
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return 0;
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@ -175,6 +175,7 @@ static int r300_get_param(struct pipe_screen* pscreen, enum pipe_cap param)
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case PIPE_CAP_FAKE_SW_MSAA:
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case PIPE_CAP_SAMPLE_SHADING:
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case PIPE_CAP_TEXTURE_GATHER_OFFSETS:
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case PIPE_CAP_TGSI_VS_WINDOW_SPACE_POSITION:
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return 0;
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/* SWTCL-only features. */
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@ -316,6 +316,7 @@ static int r600_get_param(struct pipe_screen* pscreen, enum pipe_cap param)
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case PIPE_CAP_TEXTURE_QUERY_LOD:
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case PIPE_CAP_SAMPLE_SHADING:
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case PIPE_CAP_TEXTURE_GATHER_OFFSETS:
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case PIPE_CAP_TGSI_VS_WINDOW_SPACE_POSITION:
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return 0;
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/* Stream output. */
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@ -245,6 +245,7 @@ static int si_get_param(struct pipe_screen* pscreen, enum pipe_cap param)
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case PIPE_CAP_TEXTURE_QUERY_LOD:
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case PIPE_CAP_SAMPLE_SHADING:
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case PIPE_CAP_TEXTURE_GATHER_OFFSETS:
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case PIPE_CAP_TGSI_VS_WINDOW_SPACE_POSITION:
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return 0;
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case PIPE_CAP_TEXTURE_BORDER_COLOR_QUIRK:
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@ -191,6 +191,7 @@ softpipe_get_param(struct pipe_screen *screen, enum pipe_cap param)
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case PIPE_CAP_TEXTURE_QUERY_LOD:
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case PIPE_CAP_SAMPLE_SHADING:
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case PIPE_CAP_TEXTURE_GATHER_OFFSETS:
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case PIPE_CAP_TGSI_VS_WINDOW_SPACE_POSITION:
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return 0;
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case PIPE_CAP_FAKE_SW_MSAA:
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return 1;
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@ -275,6 +275,7 @@ svga_get_param(struct pipe_screen *screen, enum pipe_cap param)
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case PIPE_CAP_TEXTURE_QUERY_LOD:
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case PIPE_CAP_SAMPLE_SHADING:
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case PIPE_CAP_TEXTURE_GATHER_OFFSETS:
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case PIPE_CAP_TGSI_VS_WINDOW_SPACE_POSITION:
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return 0;
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case PIPE_CAP_MIN_MAP_BUFFER_ALIGNMENT:
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return 64;
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@ -558,6 +558,7 @@ enum pipe_cap {
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PIPE_CAP_MAX_TEXTURE_GATHER_OFFSET = 96,
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PIPE_CAP_SAMPLE_SHADING = 97,
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PIPE_CAP_TEXTURE_GATHER_OFFSETS = 98,
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PIPE_CAP_TGSI_VS_WINDOW_SPACE_POSITION = 99
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};
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#define PIPE_QUIRK_TEXTURE_BORDER_COLOR_SWIZZLE_NV50 (1 << 0)
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@ -237,7 +237,8 @@ union tgsi_immediate_data
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#define TGSI_PROPERTY_FS_DEPTH_LAYOUT 6
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#define TGSI_PROPERTY_VS_PROHIBIT_UCPS 7
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#define TGSI_PROPERTY_GS_INVOCATIONS 8
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#define TGSI_PROPERTY_COUNT 9
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#define TGSI_PROPERTY_VS_WINDOW_SPACE_POSITION 9
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#define TGSI_PROPERTY_COUNT 10
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struct tgsi_property {
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unsigned Type : 4; /**< TGSI_TOKEN_TYPE_PROPERTY */
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