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-rw-r--r--src/gallium/drivers/i965simple/brw_sf.c351
1 files changed, 351 insertions, 0 deletions
diff --git a/src/gallium/drivers/i965simple/brw_sf.c b/src/gallium/drivers/i965simple/brw_sf.c
new file mode 100644
index 00000000000..b82a2e143ba
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+++ b/src/gallium/drivers/i965simple/brw_sf.c
@@ -0,0 +1,351 @@
+/*
+ Copyright (C) Intel Corp. 2006. All Rights Reserved.
+ Intel funded Tungsten Graphics (http://www.tungstengraphics.com) to
+ develop this 3D driver.
+
+ Permission is hereby granted, free of charge, to any person obtaining
+ a copy of this software and associated documentation files (the
+ "Software"), to deal in the Software without restriction, including
+ without limitation the rights to use, copy, modify, merge, publish,
+ distribute, sublicense, and/or sell copies of the Software, and to
+ permit persons to whom the Software is furnished to do so, subject to
+ the following conditions:
+
+ The above copyright notice and this permission notice (including the
+ next paragraph) shall be included in all copies or substantial
+ portions of the Software.
+
+ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+ IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
+ LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+ OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+ **********************************************************************/
+ /*
+ * Authors:
+ * Keith Whitwell <[email protected]>
+ */
+
+
+#include "brw_defines.h"
+#include "brw_context.h"
+#include "brw_eu.h"
+#include "brw_util.h"
+#include "brw_sf.h"
+#include "brw_state.h"
+#include "tgsi/tgsi_parse.h"
+
+
+static void compile_sf_prog( struct brw_context *brw,
+ struct brw_sf_prog_key *key )
+{
+ struct brw_sf_compile c;
+ const unsigned *program;
+ unsigned program_size;
+
+ memset(&c, 0, sizeof(c));
+
+ /* Begin the compilation:
+ */
+ brw_init_compile(&c.func);
+
+ c.key = *key;
+
+
+ c.nr_attrs = c.key.vp_output_count;
+ c.nr_attr_regs = (c.nr_attrs+1)/2;
+
+ c.nr_setup_attrs = c.key.fp_input_count + 1; /* +1 for position */
+ c.nr_setup_regs = (c.nr_setup_attrs+1)/2;
+
+ c.prog_data.urb_read_length = c.nr_attr_regs;
+ c.prog_data.urb_entry_size = c.nr_setup_regs * 2;
+
+
+ /* Which primitive? Or all three?
+ */
+ switch (key->primitive) {
+ case SF_TRIANGLES:
+ c.nr_verts = 3;
+ brw_emit_tri_setup( &c );
+ break;
+ case SF_LINES:
+ c.nr_verts = 2;
+ brw_emit_line_setup( &c );
+ break;
+ case SF_POINTS:
+ c.nr_verts = 1;
+ brw_emit_point_setup( &c );
+ break;
+
+ case SF_UNFILLED_TRIS:
+ default:
+ assert(0);
+ return;
+ }
+
+
+
+ /* get the program
+ */
+ program = brw_get_program(&c.func, &program_size);
+
+ /* Upload
+ */
+ brw->sf.prog_gs_offset = brw_upload_cache( &brw->cache[BRW_SF_PROG],
+ &c.key,
+ sizeof(c.key),
+ program,
+ program_size,
+ &c.prog_data,
+ &brw->sf.prog_data );
+}
+
+
+static boolean search_cache( struct brw_context *brw,
+ struct brw_sf_prog_key *key )
+{
+ return brw_search_cache(&brw->cache[BRW_SF_PROG],
+ key, sizeof(*key),
+ &brw->sf.prog_data,
+ &brw->sf.prog_gs_offset);
+}
+
+
+/* Calculate interpolants for triangle and line rasterization.
+ */
+static void upload_sf_prog( struct brw_context *brw )
+{
+ const struct brw_fragment_program *fs = brw->attribs.FragmentProgram;
+ struct brw_sf_prog_key key;
+ struct tgsi_parse_context parse;
+ int i, done = 0;
+
+
+ memset(&key, 0, sizeof(key));
+
+ /* Populate the key, noting state dependencies:
+ */
+ /* CACHE_NEW_VS_PROG */
+ key.vp_output_count = brw->vs.prog_data->outputs_written;
+
+ /* BRW_NEW_FS */
+ key.fp_input_count = brw->attribs.FragmentProgram->info.file_max[TGSI_FILE_INPUT] + 1;
+
+
+ /* BRW_NEW_REDUCED_PRIMITIVE */
+ switch (brw->reduced_primitive) {
+ case PIPE_PRIM_TRIANGLES:
+// if (key.attrs & (1<<VERT_RESULT_EDGE))
+// key.primitive = SF_UNFILLED_TRIS;
+// else
+ key.primitive = SF_TRIANGLES;
+ break;
+ case PIPE_PRIM_LINES:
+ key.primitive = SF_LINES;
+ break;
+ case PIPE_PRIM_POINTS:
+ key.primitive = SF_POINTS;
+ break;
+ }
+
+
+
+ /* Scan fp inputs to figure out what interpolation modes are
+ * required for each incoming vp output. There is an assumption
+ * that the state tracker makes sure there is a 1:1 linkage between
+ * these sets of attributes (XXX: position??)
+ */
+ tgsi_parse_init( &parse, fs->program.tokens );
+ while( !done &&
+ !tgsi_parse_end_of_tokens( &parse ) )
+ {
+ tgsi_parse_token( &parse );
+
+ switch( parse.FullToken.Token.Type ) {
+ case TGSI_TOKEN_TYPE_DECLARATION:
+ if (parse.FullToken.FullDeclaration.Declaration.File == TGSI_FILE_INPUT)
+ {
+ int first = parse.FullToken.FullDeclaration.DeclarationRange.First;
+ int last = parse.FullToken.FullDeclaration.DeclarationRange.Last;
+ int interp_mode = parse.FullToken.FullDeclaration.Declaration.Interpolate;
+ //int semantic = parse.FullToken.FullDeclaration.Semantic.SemanticName;
+ //int semantic_index = parse.FullToken.FullDeclaration.Semantic.SemanticIndex;
+
+ debug_printf("fs input %d..%d interp mode %d\n", first, last, interp_mode);
+
+ switch (interp_mode) {
+ case TGSI_INTERPOLATE_CONSTANT:
+ for (i = first; i <= last; i++)
+ key.const_mask |= (1 << i);
+ break;
+ case TGSI_INTERPOLATE_LINEAR:
+ for (i = first; i <= last; i++)
+ key.linear_mask |= (1 << i);
+ break;
+ case TGSI_INTERPOLATE_PERSPECTIVE:
+ for (i = first; i <= last; i++)
+ key.persp_mask |= (1 << i);
+ break;
+ default:
+ break;
+ }
+
+ /* Also need stuff for flat shading, twosided color.
+ */
+
+ }
+ break;
+ default:
+ done = 1;
+ break;
+ }
+ }
+
+ /* Hack: Adjust for position. Optimize away when not required (ie
+ * for perspective interpolation).
+ */
+ key.persp_mask <<= 1;
+ key.linear_mask <<= 1;
+ key.linear_mask |= 1;
+ key.const_mask <<= 1;
+
+ debug_printf("key.persp_mask: %x\n", key.persp_mask);
+ debug_printf("key.linear_mask: %x\n", key.linear_mask);
+ debug_printf("key.const_mask: %x\n", key.const_mask);
+
+
+// key.do_point_sprite = brw->attribs.Point->PointSprite;
+// key.SpriteOrigin = brw->attribs.Point->SpriteOrigin;
+
+// key.do_flat_shading = (brw->attribs.Raster->flatshade);
+// key.do_twoside_color = (brw->attribs.Light->Enabled && brw->attribs.Light->Model.TwoSide);
+
+// if (key.do_twoside_color)
+// key.frontface_ccw = (brw->attribs.Polygon->FrontFace == GL_CCW);
+
+
+ if (!search_cache(brw, &key))
+ compile_sf_prog( brw, &key );
+}
+
+
+const struct brw_tracked_state brw_sf_prog = {
+ .dirty = {
+ .brw = (BRW_NEW_RASTERIZER |
+ BRW_NEW_REDUCED_PRIMITIVE |
+ BRW_NEW_VS |
+ BRW_NEW_FS),
+ .cache = 0,
+ },
+ .update = upload_sf_prog
+};
+
+
+
+#if 0
+/* Build a struct like the one we'd like the state tracker to pass to
+ * us.
+ */
+static void update_sf_linkage( struct brw_context *brw )
+{
+ const struct brw_vertex_program *vs = brw->attribs.VertexProgram;
+ const struct brw_fragment_program *fs = brw->attribs.FragmentProgram;
+ struct pipe_setup_linkage state;
+ struct tgsi_parse_context parse;
+
+ int i, j;
+ int nr_vp_outputs = 0;
+ int done = 0;
+
+ struct {
+ unsigned semantic:8;
+ unsigned semantic_index:16;
+ } fp_semantic[32], vp_semantic[32];
+
+ memset(&state, 0, sizeof(state));
+
+ state.fp_input_count = 0;
+
+
+
+
+
+
+ assert(state.fp_input_count == fs->program.num_inputs);
+
+
+ /* Then scan vp outputs
+ */
+ done = 0;
+ tgsi_parse_init( &parse, vs->program.tokens );
+ while( !done &&
+ !tgsi_parse_end_of_tokens( &parse ) )
+ {
+ tgsi_parse_token( &parse );
+
+ switch( parse.FullToken.Token.Type ) {
+ case TGSI_TOKEN_TYPE_DECLARATION:
+ if (parse.FullToken.FullDeclaration.Declaration.File == TGSI_FILE_INPUT)
+ {
+ int first = parse.FullToken.FullDeclaration.DeclarationRange.First;
+ int last = parse.FullToken.FullDeclaration.DeclarationRange.Last;
+
+ for (i = first; i < last; i++) {
+ vp_semantic[i].semantic =
+ parse.FullToken.FullDeclaration.Semantic.SemanticName;
+ vp_semantic[i].semantic_index =
+ parse.FullToken.FullDeclaration.Semantic.SemanticIndex;
+ }
+
+ assert(last > nr_vp_outputs);
+ nr_vp_outputs = last;
+ }
+ break;
+ default:
+ done = 1;
+ break;
+ }
+ }
+
+
+ /* Now match based on semantic information.
+ */
+ for (i = 0; i< state.fp_input_count; i++) {
+ for (j = 0; j < nr_vp_outputs; j++) {
+ if (fp_semantic[i].semantic == vp_semantic[j].semantic &&
+ fp_semantic[i].semantic_index == vp_semantic[j].semantic_index) {
+ state.fp_input[i].vp_output = j;
+ }
+ }
+ if (fp_semantic[i].semantic == TGSI_SEMANTIC_COLOR) {
+ for (j = 0; j < nr_vp_outputs; j++) {
+ if (TGSI_SEMANTIC_BCOLOR == vp_semantic[j].semantic &&
+ fp_semantic[i].semantic_index == vp_semantic[j].semantic_index) {
+ state.fp_input[i].bf_vp_output = j;
+ }
+ }
+ }
+ }
+
+ if (memcmp(&brw->sf.linkage, &state, sizeof(state)) != 0) {
+ brw->sf.linkage = state;
+ brw->state.dirty.brw |= BRW_NEW_SF_LINKAGE;
+ }
+}
+
+
+const struct brw_tracked_state brw_sf_linkage = {
+ .dirty = {
+ .brw = (BRW_NEW_VS |
+ BRW_NEW_FS),
+ .cache = 0,
+ },
+ .update = update_sf_linkage
+};
+
+
+#endif
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