/**************************************************************************
*
- * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * Copyright 2003 VMware, Inc.
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* 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 NON-INFRINGEMENT.
- * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * IN NO EVENT SHALL VMWARE 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.
static void
compute_vertex_info(struct llvmpipe_context *llvmpipe)
{
- const struct lp_fragment_shader *lpfs = llvmpipe->fs;
+ const struct tgsi_shader_info *fsInfo = &llvmpipe->fs->info.base;
struct vertex_info *vinfo = &llvmpipe->vertex_info;
int vs_index;
uint i;
draw_prepare_shader_outputs(llvmpipe->draw);
+ /*
+ * Those can't actually be 0 (because pos is always at 0).
+ * But use ints anyway to avoid confusion (in vs outputs, they
+ * can very well be at pos 0).
+ */
llvmpipe->color_slot[0] = -1;
llvmpipe->color_slot[1] = -1;
llvmpipe->bcolor_slot[0] = -1;
llvmpipe->bcolor_slot[1] = -1;
+ llvmpipe->viewport_index_slot = -1;
+ llvmpipe->layer_slot = -1;
+ llvmpipe->face_slot = -1;
+ llvmpipe->psize_slot = -1;
/*
* Match FS inputs against VS outputs, emitting the necessary
vinfo->num_attribs = 0;
vs_index = draw_find_shader_output(llvmpipe->draw,
- TGSI_SEMANTIC_POSITION,
- 0);
+ TGSI_SEMANTIC_POSITION, 0);
- draw_emit_vertex_attr(vinfo, EMIT_4F, INTERP_PERSPECTIVE, vs_index);
+ draw_emit_vertex_attr(vinfo, EMIT_4F, vs_index);
- for (i = 0; i < lpfs->info.base.num_inputs; i++) {
+ for (i = 0; i < fsInfo->num_inputs; i++) {
/*
* Search for each input in current vs output:
*/
-
vs_index = draw_find_shader_output(llvmpipe->draw,
- lpfs->info.base.input_semantic_name[i],
- lpfs->info.base.input_semantic_index[i]);
+ fsInfo->input_semantic_name[i],
+ fsInfo->input_semantic_index[i]);
- if (lpfs->info.base.input_semantic_name[i] == TGSI_SEMANTIC_COLOR &&
- lpfs->info.base.input_semantic_index[i] < 2) {
- int idx = lpfs->info.base.input_semantic_index[i];
+ if (fsInfo->input_semantic_name[i] == TGSI_SEMANTIC_COLOR &&
+ fsInfo->input_semantic_index[i] < 2) {
+ int idx = fsInfo->input_semantic_index[i];
llvmpipe->color_slot[idx] = (int)vinfo->num_attribs;
}
- if (lpfs->info.base.input_semantic_name[i] == TGSI_SEMANTIC_FACE) {
- llvmpipe->face_slot = vinfo->num_attribs;
- draw_emit_vertex_attr(vinfo, EMIT_4F, INTERP_CONSTANT, vs_index);
- } else if (lpfs->info.base.input_semantic_name[i] == TGSI_SEMANTIC_PRIMID) {
- draw_emit_vertex_attr(vinfo, EMIT_4F, INTERP_CONSTANT, vs_index);
+ if (fsInfo->input_semantic_name[i] == TGSI_SEMANTIC_FACE) {
+ llvmpipe->face_slot = (int)vinfo->num_attribs;
+ draw_emit_vertex_attr(vinfo, EMIT_4F, vs_index);
+ /*
+ * For vp index and layer, if the fs requires them but the vs doesn't
+ * provide them, draw (vbuf) will give us the required 0 (slot -1).
+ * (This means in this case we'll also use those slots in setup, which
+ * isn't necessary but they'll contain the correct (0) value.)
+ */
+ } else if (fsInfo->input_semantic_name[i] ==
+ TGSI_SEMANTIC_VIEWPORT_INDEX) {
+ llvmpipe->viewport_index_slot = (int)vinfo->num_attribs;
+ draw_emit_vertex_attr(vinfo, EMIT_4F, vs_index);
+ } else if (fsInfo->input_semantic_name[i] == TGSI_SEMANTIC_LAYER) {
+ llvmpipe->layer_slot = (int)vinfo->num_attribs;
+ draw_emit_vertex_attr(vinfo, EMIT_4F, vs_index);
} else {
/*
- * Emit the requested fs attribute for all but position.
+ * Note that we'd actually want to skip position (as we won't use
+ * the attribute in the fs) but can't. The reason is that we don't
+ * actually have a input/output map for setup (even though it looks
+ * like we do...). Could adjust for this though even without a map
+ * (in llvmpipe_create_fs_state()).
*/
- draw_emit_vertex_attr(vinfo, EMIT_4F, INTERP_PERSPECTIVE, vs_index);
+ draw_emit_vertex_attr(vinfo, EMIT_4F, vs_index);
}
}
+
/* Figure out if we need bcolor as well.
*/
for (i = 0; i < 2; i++) {
if (vs_index >= 0) {
llvmpipe->bcolor_slot[i] = (int)vinfo->num_attribs;
- draw_emit_vertex_attr(vinfo, EMIT_4F, INTERP_PERSPECTIVE, vs_index);
+ draw_emit_vertex_attr(vinfo, EMIT_4F, vs_index);
}
}
-
/* Figure out if we need pointsize as well.
*/
vs_index = draw_find_shader_output(llvmpipe->draw,
TGSI_SEMANTIC_PSIZE, 0);
if (vs_index >= 0) {
- llvmpipe->psize_slot = vinfo->num_attribs;
- draw_emit_vertex_attr(vinfo, EMIT_4F, INTERP_CONSTANT, vs_index);
+ llvmpipe->psize_slot = (int)vinfo->num_attribs;
+ draw_emit_vertex_attr(vinfo, EMIT_4F, vs_index);
}
- /* Figure out if we need viewport index */
- vs_index = draw_find_shader_output(llvmpipe->draw,
- TGSI_SEMANTIC_VIEWPORT_INDEX,
- 0);
- if (vs_index >= 0) {
- llvmpipe->viewport_index_slot = vinfo->num_attribs;
- draw_emit_vertex_attr(vinfo, EMIT_4F, INTERP_CONSTANT, vs_index);
- } else {
- llvmpipe->viewport_index_slot = 0;
+ /* Figure out if we need viewport index (if it wasn't already in fs input) */
+ if (llvmpipe->viewport_index_slot < 0) {
+ vs_index = draw_find_shader_output(llvmpipe->draw,
+ TGSI_SEMANTIC_VIEWPORT_INDEX,
+ 0);
+ if (vs_index >= 0) {
+ llvmpipe->viewport_index_slot =(int)vinfo->num_attribs;
+ draw_emit_vertex_attr(vinfo, EMIT_4F, vs_index);
+ }
}
- /* Figure out if we need layer */
- vs_index = draw_find_shader_output(llvmpipe->draw,
- TGSI_SEMANTIC_LAYER,
- 0);
- if (vs_index >= 0) {
- llvmpipe->layer_slot = vinfo->num_attribs;
- draw_emit_vertex_attr(vinfo, EMIT_4F, INTERP_CONSTANT, vs_index);
- } else {
- llvmpipe->layer_slot = 0;
+ /* Figure out if we need layer (if it wasn't already in fs input) */
+ if (llvmpipe->layer_slot < 0) {
+ vs_index = draw_find_shader_output(llvmpipe->draw,
+ TGSI_SEMANTIC_LAYER,
+ 0);
+ if (vs_index >= 0) {
+ llvmpipe->layer_slot = (int)vinfo->num_attribs;
+ draw_emit_vertex_attr(vinfo, EMIT_4F, vs_index);
+ }
}
draw_compute_vertex_size(vinfo);
llvmpipe->tex_timestamp = lp_screen->timestamp;
llvmpipe->dirty |= LP_NEW_SAMPLER_VIEW;
}
-
+
+ /* This needs LP_NEW_RASTERIZER because of draw_prepare_shader_outputs(). */
if (llvmpipe->dirty & (LP_NEW_RASTERIZER |
LP_NEW_FS |
LP_NEW_VS))
- compute_vertex_info( llvmpipe );
+ compute_vertex_info(llvmpipe);
if (llvmpipe->dirty & (LP_NEW_FS |
LP_NEW_FRAMEBUFFER |
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