else if (semName == TGSI_SEMANTIC_VERTEXID) {
info->uses_vertexid = TRUE;
}
+ else if (semName == TGSI_SEMANTIC_VERTEXID_NOBASE) {
+ info->uses_vertexid_nobase = TRUE;
+ }
+ else if (semName == TGSI_SEMANTIC_BASEVERTEX) {
+ info->uses_basevertex = TRUE;
+ }
else if (semName == TGSI_SEMANTIC_PRIMID) {
info->uses_primid = TRUE;
}
boolean uses_kill; /**< KILL or KILL_IF instruction used? */
boolean uses_instanceid;
boolean uses_vertexid;
+ boolean uses_vertexid_nobase;
+ boolean uses_basevertex;
boolean uses_primid;
boolean uses_frontface;
boolean writes_psize;
"SAMPLEPOS",
"SAMPLEMASK",
"INVOCATIONID",
+ "VERTEXID_NOBASE",
+ "BASEVERTEX",
};
const char *tgsi_texture_names[TGSI_TEXTURE_COUNT] =
* ``PIPE_CAP_CLIP_HALFZ``: Whether the driver supports the
pipe_rasterizer_state::clip_halfz being set to true. This is required
for enabling ARB_clip_control.
+* ``PIPE_CAP_VERTEXID_NOBASE``: If true, the driver only supports
+ TGSI_SEMANTIC_VERTEXID_NOBASE (and not TGSI_SEMANTIC_VERTEXID). This means
+ state trackers for APIs whose vertexIDs are offset by basevertex (such as GL)
+ will need to lower TGSI_SEMANTIC_VERTEXID to TGSI_SEMANTIC_VERTEXID_NOBASE
+ and TGSI_SEMANTIC_BASEVERTEX, so drivers setting this must handle both these
+ semantics. Only relevant if geometry shaders are supported.
+ (Currently not possible to query availability of these two semantics outside
+ this, at least BASEVERTEX should be exposed separately too).
.. _pipe_capf:
For geometry shaders, this semantic label indicates that an output
contains the index of the viewport (and scissor) to use.
-Only the X value is used.
+This is an integer value, and only the X component is used.
TGSI_SEMANTIC_LAYER
For geometry shaders, this semantic label indicates that an output
contains the layer value to use for the color and depth/stencil surfaces.
-Only the X value is used. (Also known as rendertarget array index.)
+This is an integer value, and only the X component is used.
+(Also known as rendertarget array index.)
TGSI_SEMANTIC_CULLDIST
""""""""""""""""""""""
For fragment shaders, this semantic label indicates that a system value
-contains the current sample id (i.e. gl_SampleID). Only the X value is used.
+contains the current sample id (i.e. gl_SampleID).
+This is an integer value, and only the X component is used.
TGSI_SEMANTIC_SAMPLEPOS
"""""""""""""""""""""""
""""""""""""""""""""""""""
For geometry shaders, this semantic label indicates that a system value
-contains the current invocation id (i.e. gl_InvocationID). Only the X value is
-used.
+contains the current invocation id (i.e. gl_InvocationID).
+This is an integer value, and only the X component is used.
+
+TGSI_SEMANTIC_INSTANCEID
+""""""""""""""""""""""""
+
+For vertex shaders, this semantic label indicates that a system value contains
+the current instance id (i.e. gl_InstanceID). It does not include the base
+instance. This is an integer value, and only the X component is used.
+
+TGSI_SEMANTIC_VERTEXID
+""""""""""""""""""""""
+
+For vertex shaders, this semantic label indicates that a system value contains
+the current vertex id (i.e. gl_VertexID). It does (unlike in d3d10) include the
+base vertex. This is an integer value, and only the X component is used.
+
+TGSI_SEMANTIC_VERTEXID_NOBASE
+"""""""""""""""""""""""""""""""
+
+For vertex shaders, this semantic label indicates that a system value contains
+the current vertex id without including the base vertex (this corresponds to
+d3d10 vertex id, so TGSI_SEMANTIC_VERTEXID_NOBASE + TGSI_SEMANTIC_BASEVERTEX
+== TGSI_SEMANTIC_VERTEXID). This is an integer value, and only the X component
+is used.
+
+TGSI_SEMANTIC_BASEVERTEX
+""""""""""""""""""""""""
+
+For vertex shaders, this semantic label indicates that a system value contains
+the base vertex (i.e. gl_BaseVertex). Note that for non-indexed draw calls,
+this contains the first (or start) value instead.
+This is an integer value, and only the X component is used.
+
+TGSI_SEMANTIC_PRIMID
+""""""""""""""""""""
+
+For geometry and fragment shaders, this semantic label indicates the value
+contains the primitive id (i.e. gl_PrimitiveID). This is an integer value,
+and only the X component is used.
+FIXME: This right now can be either a ordinary input or a system value...
+
Declaration Interpolate
^^^^^^^^^^^^^^^^^^^^^^^
case PIPE_CAP_CONDITIONAL_RENDER_INVERTED:
case PIPE_CAP_SAMPLER_VIEW_TARGET:
case PIPE_CAP_CLIP_HALFZ:
+ case PIPE_CAP_VERTEXID_NOBASE:
return 0;
case PIPE_CAP_MAX_VIEWPORTS:
case PIPE_CAP_TGSI_VS_WINDOW_SPACE_POSITION:
case PIPE_CAP_CONDITIONAL_RENDER_INVERTED:
case PIPE_CAP_CLIP_HALFZ:
+ case PIPE_CAP_VERTEXID_NOBASE:
return 0;
case PIPE_CAP_MAX_DUAL_SOURCE_RENDER_TARGETS:
return true;
case PIPE_CAP_CLIP_HALFZ:
return true;
+ case PIPE_CAP_VERTEXID_NOBASE:
+ return false;
default:
return 0;
return 0;
case PIPE_CAP_CLIP_HALFZ:
return 1;
+ case PIPE_CAP_VERTEXID_NOBASE:
+ return 0;
}
/* should only get here on unhandled cases */
debug_printf("Unexpected PIPE_CAP %d query\n", param);
case PIPE_CAP_CONDITIONAL_RENDER_INVERTED:
case PIPE_CAP_SAMPLER_VIEW_TARGET:
case PIPE_CAP_CLIP_HALFZ:
+ case PIPE_CAP_VERTEXID_NOBASE:
return 0;
case PIPE_CAP_VENDOR_ID:
case PIPE_CAP_TGSI_VS_WINDOW_SPACE_POSITION:
case PIPE_CAP_COMPUTE:
case PIPE_CAP_DRAW_INDIRECT:
+ case PIPE_CAP_VERTEXID_NOBASE:
return 0;
case PIPE_CAP_VENDOR_ID:
case PIPE_CAP_TGSI_FS_FINE_DERIVATIVE:
case PIPE_CAP_CONDITIONAL_RENDER_INVERTED:
case PIPE_CAP_SAMPLER_VIEW_TARGET:
+ case PIPE_CAP_VERTEXID_NOBASE:
return 0;
/* SWTCL-only features. */
case PIPE_CAP_DRAW_INDIRECT:
case PIPE_CAP_CONDITIONAL_RENDER_INVERTED:
case PIPE_CAP_SAMPLER_VIEW_TARGET:
+ case PIPE_CAP_VERTEXID_NOBASE:
return 0;
/* Stream output. */
case PIPE_CAP_TGSI_FS_FINE_DERIVATIVE:
case PIPE_CAP_CONDITIONAL_RENDER_INVERTED:
case PIPE_CAP_SAMPLER_VIEW_TARGET:
+ case PIPE_CAP_VERTEXID_NOBASE:
return 0;
case PIPE_CAP_TEXTURE_BORDER_COLOR_QUIRK:
return 1;
case PIPE_CAP_CLIP_HALFZ:
return 1;
+ case PIPE_CAP_VERTEXID_NOBASE:
+ return 0;
}
/* should only get here on unhandled cases */
debug_printf("Unexpected PIPE_CAP %d query\n", param);
case PIPE_CAP_CONDITIONAL_RENDER_INVERTED:
case PIPE_CAP_SAMPLER_VIEW_TARGET:
case PIPE_CAP_CLIP_HALFZ:
+ case PIPE_CAP_VERTEXID_NOBASE:
return 0;
case PIPE_CAP_MIN_MAP_BUFFER_ALIGNMENT:
return 64;
case PIPE_CAP_CONDITIONAL_RENDER_INVERTED:
case PIPE_CAP_SAMPLER_VIEW_TARGET:
case PIPE_CAP_CLIP_HALFZ:
+ case PIPE_CAP_VERTEXID_NOBASE:
return 0;
/* Stream output. */
PIPE_CAP_MAX_VERTEX_ATTRIB_STRIDE = 109,
PIPE_CAP_SAMPLER_VIEW_TARGET = 110,
PIPE_CAP_CLIP_HALFZ = 111,
+ PIPE_CAP_VERTEXID_NOBASE,
};
#define PIPE_QUIRK_TEXTURE_BORDER_COLOR_SWIZZLE_NV50 (1 << 0)
#define TGSI_SEMANTIC_SAMPLEPOS 25
#define TGSI_SEMANTIC_SAMPLEMASK 26
#define TGSI_SEMANTIC_INVOCATIONID 27
-#define TGSI_SEMANTIC_COUNT 28 /**< number of semantic values */
+#define TGSI_SEMANTIC_VERTEXID_NOBASE 28
+#define TGSI_SEMANTIC_BASEVERTEX 29
+#define TGSI_SEMANTIC_COUNT 30 /**< number of semantic values */
struct tgsi_declaration_semantic
{
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