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-rw-r--r--src/mesa/vbo/vbo.h1
-rw-r--r--src/mesa/vbo/vbo_exec_api.c1
-rw-r--r--src/mesa/vbo/vbo_exec_array.c90
-rw-r--r--src/mesa/vbo/vbo_save_api.c2
4 files changed, 90 insertions, 4 deletions
diff --git a/src/mesa/vbo/vbo.h b/src/mesa/vbo/vbo.h
index b24ecfd7cde..7a085f63c73 100644
--- a/src/mesa/vbo/vbo.h
+++ b/src/mesa/vbo/vbo.h
@@ -45,6 +45,7 @@ struct _mesa_prim {
GLuint start;
GLuint count;
GLint basevertex;
+ GLsizei num_instances;
};
/* Would like to call this a "vbo_index_buffer", but this would be
diff --git a/src/mesa/vbo/vbo_exec_api.c b/src/mesa/vbo/vbo_exec_api.c
index e40f5f9dc44..e83bd9e4045 100644
--- a/src/mesa/vbo/vbo_exec_api.c
+++ b/src/mesa/vbo/vbo_exec_api.c
@@ -531,6 +531,7 @@ static void GLAPIENTRY vbo_exec_Begin( GLenum mode )
exec->vtx.prim[i].pad = 0;
exec->vtx.prim[i].start = exec->vtx.vert_count;
exec->vtx.prim[i].count = 0;
+ exec->vtx.prim[i].num_instances = 1;
ctx->Driver.CurrentExecPrimitive = mode;
}
diff --git a/src/mesa/vbo/vbo_exec_array.c b/src/mesa/vbo/vbo_exec_array.c
index 90474da7c02..d4dbc8d2562 100644
--- a/src/mesa/vbo/vbo_exec_array.c
+++ b/src/mesa/vbo/vbo_exec_array.c
@@ -520,6 +520,7 @@ vbo_exec_DrawArrays(GLenum mode, GLint start, GLsizei count)
prim[0].count = count;
prim[0].indexed = 0;
prim[0].basevertex = 0;
+ prim[0].num_instances = 1;
vbo->draw_prims( ctx, exec->array.inputs, prim, 1, NULL,
GL_TRUE, start, start + count - 1 );
@@ -532,6 +533,62 @@ vbo_exec_DrawArrays(GLenum mode, GLint start, GLsizei count)
}
+static void GLAPIENTRY
+vbo_exec_DrawArraysInstanced(GLenum mode, GLint start, GLsizei count,
+ GLsizei primcount)
+{
+ GET_CURRENT_CONTEXT(ctx);
+ struct vbo_context *vbo = vbo_context(ctx);
+ struct vbo_exec_context *exec = &vbo->exec;
+ struct _mesa_prim prim[1];
+
+ if (MESA_VERBOSE & VERBOSE_DRAW)
+ _mesa_debug(ctx, "glDrawArraysInstanced(%s, %d, %d, %d)\n",
+ _mesa_lookup_enum_by_nr(mode), start, count, primcount);
+
+ if (!_mesa_validate_DrawArraysInstanced(ctx, mode, start, count, primcount))
+ return;
+
+ FLUSH_CURRENT( ctx, 0 );
+
+ if (!_mesa_valid_to_render(ctx, "glDrawArraysInstanced")) {
+ return;
+ }
+
+#if 0 /* debug */
+ check_draw_arrays_data(ctx, start, count);
+#endif
+
+ bind_arrays( ctx );
+
+ /* Again... because we may have changed the bitmask of per-vertex varying
+ * attributes. If we regenerate the fixed-function vertex program now
+ * we may be able to prune down the number of vertex attributes which we
+ * need in the shader.
+ */
+ if (ctx->NewState)
+ _mesa_update_state( ctx );
+
+ prim[0].begin = 1;
+ prim[0].end = 1;
+ prim[0].weak = 0;
+ prim[0].pad = 0;
+ prim[0].mode = mode;
+ prim[0].start = start;
+ prim[0].count = count;
+ prim[0].indexed = 0;
+ prim[0].basevertex = 0;
+ prim[0].num_instances = primcount;
+
+ vbo->draw_prims( ctx, exec->array.inputs, prim, 1, NULL,
+ GL_TRUE, start, start + count - 1 );
+
+#if 0 /* debug */
+ print_draw_arrays(ctx, exec, mode, start, count);
+#endif
+}
+
+
/**
* Map GL_ELEMENT_ARRAY_BUFFER and print contents.
*/
@@ -595,7 +652,7 @@ vbo_validated_drawrangeelements(GLcontext *ctx, GLenum mode,
GLuint start, GLuint end,
GLsizei count, GLenum type,
const GLvoid *indices,
- GLint basevertex)
+ GLint basevertex, GLint primcount)
{
struct vbo_context *vbo = vbo_context(ctx);
struct vbo_exec_context *exec = &vbo->exec;
@@ -628,6 +685,7 @@ vbo_validated_drawrangeelements(GLcontext *ctx, GLenum mode,
prim[0].count = count;
prim[0].indexed = 1;
prim[0].basevertex = basevertex;
+ prim[0].num_instances = primcount;
/* Need to give special consideration to rendering a range of
* indices starting somewhere above zero. Typically the
@@ -769,7 +827,7 @@ vbo_exec_DrawRangeElementsBaseVertex(GLenum mode,
#endif
vbo_validated_drawrangeelements(ctx, mode, GL_TRUE, start, end,
- count, type, indices, basevertex);
+ count, type, indices, basevertex, 1);
}
@@ -805,7 +863,7 @@ vbo_exec_DrawElements(GLenum mode, GLsizei count, GLenum type,
return;
vbo_validated_drawrangeelements(ctx, mode, GL_FALSE, ~0, ~0,
- count, type, indices, 0);
+ count, type, indices, 0, 1);
}
@@ -825,7 +883,27 @@ vbo_exec_DrawElementsBaseVertex(GLenum mode, GLsizei count, GLenum type,
return;
vbo_validated_drawrangeelements(ctx, mode, GL_FALSE, ~0, ~0,
- count, type, indices, basevertex);
+ count, type, indices, basevertex, 1);
+}
+
+
+static void GLAPIENTRY
+vbo_exec_DrawElementsInstanced(GLenum mode, GLsizei count, GLenum type,
+ const GLvoid *indices, GLsizei primcount)
+{
+ GET_CURRENT_CONTEXT(ctx);
+
+ if (MESA_VERBOSE & VERBOSE_DRAW)
+ _mesa_debug(ctx, "glDrawElementsInstanced(%s, %d, %s, %p, %d)\n",
+ _mesa_lookup_enum_by_nr(mode), count,
+ _mesa_lookup_enum_by_nr(type), indices, primcount);
+
+ if (!_mesa_validate_DrawElementsInstanced(ctx, mode, count, type, indices,
+ primcount))
+ return;
+
+ vbo_validated_drawrangeelements(ctx, mode, GL_FALSE, ~0, ~0,
+ count, type, indices, 0, primcount);
}
@@ -926,6 +1004,7 @@ vbo_validated_multidrawelements(GLcontext *ctx, GLenum mode,
prim[i].start = ((uintptr_t)indices[i] - min_index_ptr) / index_type_size;
prim[i].count = count[i];
prim[i].indexed = 1;
+ prim[i].num_instances = 1;
if (basevertex != NULL)
prim[i].basevertex = basevertex[i];
else
@@ -950,6 +1029,7 @@ vbo_validated_multidrawelements(GLcontext *ctx, GLenum mode,
prim[0].start = 0;
prim[0].count = count[i];
prim[0].indexed = 1;
+ prim[0].num_instances = 1;
if (basevertex != NULL)
prim[0].basevertex = basevertex[i];
else
@@ -1024,6 +1104,8 @@ vbo_exec_array_init( struct vbo_exec_context *exec )
exec->vtxfmt.DrawElementsBaseVertex = vbo_exec_DrawElementsBaseVertex;
exec->vtxfmt.DrawRangeElementsBaseVertex = vbo_exec_DrawRangeElementsBaseVertex;
exec->vtxfmt.MultiDrawElementsBaseVertex = vbo_exec_MultiDrawElementsBaseVertex;
+ exec->vtxfmt.DrawArraysInstanced = vbo_exec_DrawArraysInstanced;
+ exec->vtxfmt.DrawElementsInstanced = vbo_exec_DrawElementsInstanced;
#else
exec->vtxfmt.DrawArrays = _mesa_noop_DrawArrays;
exec->vtxfmt.DrawElements = _mesa_noop_DrawElements;
diff --git a/src/mesa/vbo/vbo_save_api.c b/src/mesa/vbo/vbo_save_api.c
index a5d027982f4..c867cb03f63 100644
--- a/src/mesa/vbo/vbo_save_api.c
+++ b/src/mesa/vbo/vbo_save_api.c
@@ -418,6 +418,7 @@ static void _save_wrap_buffers( GLcontext *ctx )
save->prim[0].pad = 0;
save->prim[0].start = 0;
save->prim[0].count = 0;
+ save->prim[0].num_instances = 1;
save->prim_count = 1;
}
@@ -773,6 +774,7 @@ GLboolean vbo_save_NotifyBegin( GLcontext *ctx, GLenum mode )
save->prim[i].pad = 0;
save->prim[i].start = save->vert_count;
save->prim[i].count = 0;
+ save->prim[i].num_instances = 1;
_mesa_install_save_vtxfmt( ctx, &save->vtxfmt );
ctx->Driver.SaveNeedFlush = 1;
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-15 01:06:50 +0000