return LLVMBuildFPTrunc(builder, value, ctx->f32, "");
}
+static LLVMValueRef unpack_sint16(struct si_shader_context *ctx,
+ LLVMValueRef i32, unsigned index)
+{
+ assert(index <= 1);
+
+ if (index == 1)
+ return LLVMBuildAShr(ctx->ac.builder, i32,
+ LLVMConstInt(ctx->i32, 16, 0), "");
+
+ return LLVMBuildSExt(ctx->ac.builder,
+ LLVMBuildTrunc(ctx->ac.builder, i32,
+ ctx->ac.i16, ""),
+ ctx->i32, "");
+}
+
void si_llvm_load_input_vs(
struct si_shader_context *ctx,
unsigned input_index,
LLVMValueRef out[4])
{
+ unsigned vs_blit_property =
+ ctx->shader->selector->info.properties[TGSI_PROPERTY_VS_BLIT_SGPRS];
+
+ if (vs_blit_property) {
+ LLVMValueRef vertex_id = ctx->abi.vertex_id;
+ LLVMValueRef sel_x1 = LLVMBuildICmp(ctx->ac.builder,
+ LLVMIntULE, vertex_id,
+ ctx->i32_1, "");
+ /* Use LLVMIntNE, because we have 3 vertices and only
+ * the middle one should use y2.
+ */
+ LLVMValueRef sel_y1 = LLVMBuildICmp(ctx->ac.builder,
+ LLVMIntNE, vertex_id,
+ ctx->i32_1, "");
+
+ if (input_index == 0) {
+ /* Position: */
+ LLVMValueRef x1y1 = LLVMGetParam(ctx->main_fn,
+ ctx->param_vs_blit_inputs);
+ LLVMValueRef x2y2 = LLVMGetParam(ctx->main_fn,
+ ctx->param_vs_blit_inputs + 1);
+
+ LLVMValueRef x1 = unpack_sint16(ctx, x1y1, 0);
+ LLVMValueRef y1 = unpack_sint16(ctx, x1y1, 1);
+ LLVMValueRef x2 = unpack_sint16(ctx, x2y2, 0);
+ LLVMValueRef y2 = unpack_sint16(ctx, x2y2, 1);
+
+ LLVMValueRef x = LLVMBuildSelect(ctx->ac.builder, sel_x1,
+ x1, x2, "");
+ LLVMValueRef y = LLVMBuildSelect(ctx->ac.builder, sel_y1,
+ y1, y2, "");
+
+ out[0] = LLVMBuildSIToFP(ctx->ac.builder, x, ctx->f32, "");
+ out[1] = LLVMBuildSIToFP(ctx->ac.builder, y, ctx->f32, "");
+ out[2] = LLVMGetParam(ctx->main_fn,
+ ctx->param_vs_blit_inputs + 2);
+ out[3] = ctx->ac.f32_1;
+ return;
+ }
+
+ /* Color or texture coordinates: */
+ assert(input_index == 1);
+
+ if (vs_blit_property == SI_VS_BLIT_SGPRS_POS_COLOR) {
+ for (int i = 0; i < 4; i++) {
+ out[i] = LLVMGetParam(ctx->main_fn,
+ ctx->param_vs_blit_inputs + 3 + i);
+ }
+ } else {
+ assert(vs_blit_property == SI_VS_BLIT_SGPRS_POS_TEXCOORD);
+ LLVMValueRef x1 = LLVMGetParam(ctx->main_fn,
+ ctx->param_vs_blit_inputs + 3);
+ LLVMValueRef y1 = LLVMGetParam(ctx->main_fn,
+ ctx->param_vs_blit_inputs + 4);
+ LLVMValueRef x2 = LLVMGetParam(ctx->main_fn,
+ ctx->param_vs_blit_inputs + 5);
+ LLVMValueRef y2 = LLVMGetParam(ctx->main_fn,
+ ctx->param_vs_blit_inputs + 6);
+
+ out[0] = LLVMBuildSelect(ctx->ac.builder, sel_x1,
+ x1, x2, "");
+ out[1] = LLVMBuildSelect(ctx->ac.builder, sel_y1,
+ y1, y2, "");
+ out[2] = LLVMGetParam(ctx->main_fn,
+ ctx->param_vs_blit_inputs + 7);
+ out[3] = LLVMGetParam(ctx->main_fn,
+ ctx->param_vs_blit_inputs + 8);
+ }
+ return;
+ }
+
unsigned chan;
unsigned fix_fetch;
unsigned num_fetches;
unsigned num_returns = 0;
unsigned num_prolog_vgprs = 0;
unsigned type = ctx->type;
+ unsigned vs_blit_property =
+ shader->selector->info.properties[TGSI_PROPERTY_VS_BLIT_SGPRS];
si_init_function_info(&fninfo);
switch (type) {
case PIPE_SHADER_VERTEX:
declare_global_desc_pointers(ctx, &fninfo);
+
+ if (vs_blit_property) {
+ ctx->param_vs_blit_inputs = fninfo.num_params;
+ add_arg(&fninfo, ARG_SGPR, ctx->i32); /* i16 x1, y1 */
+ add_arg(&fninfo, ARG_SGPR, ctx->i32); /* i16 x2, y2 */
+ add_arg(&fninfo, ARG_SGPR, ctx->f32); /* depth */
+
+ if (vs_blit_property == SI_VS_BLIT_SGPRS_POS_COLOR) {
+ add_arg(&fninfo, ARG_SGPR, ctx->f32); /* color0 */
+ add_arg(&fninfo, ARG_SGPR, ctx->f32); /* color1 */
+ add_arg(&fninfo, ARG_SGPR, ctx->f32); /* color2 */
+ add_arg(&fninfo, ARG_SGPR, ctx->f32); /* color3 */
+ } else if (vs_blit_property == SI_VS_BLIT_SGPRS_POS_TEXCOORD) {
+ add_arg(&fninfo, ARG_SGPR, ctx->f32); /* texcoord.x1 */
+ add_arg(&fninfo, ARG_SGPR, ctx->f32); /* texcoord.y1 */
+ add_arg(&fninfo, ARG_SGPR, ctx->f32); /* texcoord.x2 */
+ add_arg(&fninfo, ARG_SGPR, ctx->f32); /* texcoord.y2 */
+ add_arg(&fninfo, ARG_SGPR, ctx->f32); /* texcoord.z */
+ add_arg(&fninfo, ARG_SGPR, ctx->f32); /* texcoord.w */
+ }
+
+ /* VGPRs */
+ declare_vs_input_vgprs(ctx, &fninfo, &num_prolog_vgprs);
+ break;
+ }
+
declare_per_stage_desc_pointers(ctx, &fninfo, true);
declare_vs_specific_input_sgprs(ctx, &fninfo);
* StepRate0 is set to 1. so that VGPR3 doesn't have to be loaded.
*/
vgpr_comp_cnt = enable_prim_id ? 2 : (shader->info.uses_instanceid ? 1 : 0);
- num_user_sgprs = SI_VS_NUM_USER_SGPR;
+
+ if (info->properties[TGSI_PROPERTY_VS_BLIT_SGPRS]) {
+ num_user_sgprs = SI_SGPR_VS_BLIT_DATA +
+ info->properties[TGSI_PROPERTY_VS_BLIT_SGPRS];
+ } else {
+ num_user_sgprs = SI_VS_NUM_USER_SGPR;
+ }
} else if (shader->selector->type == PIPE_SHADER_TESS_EVAL) {
vgpr_comp_cnt = enable_prim_id ? 3 : 2;
num_user_sgprs = SI_TES_NUM_USER_SGPR;
/* The prolog is a no-op if there are no inputs. */
sel->vs_needs_prolog = sel->type == PIPE_SHADER_VERTEX &&
- sel->info.num_inputs;
+ sel->info.num_inputs &&
+ !sel->info.properties[TGSI_PROPERTY_VS_BLIT_SGPRS];
/* Set which opcode uses which (i,j) pair. */
if (sel->info.uses_persp_opcode_interp_centroid)
}
}
+void *si_get_blit_vs(struct si_context *sctx, enum blitter_attrib_type type,
+ unsigned num_layers)
+{
+ struct pipe_context *pipe = &sctx->b.b;
+ unsigned vs_blit_property;
+ void **vs;
+
+ switch (type) {
+ case UTIL_BLITTER_ATTRIB_NONE:
+ vs = num_layers > 1 ? &sctx->vs_blit_pos_layered :
+ &sctx->vs_blit_pos;
+ vs_blit_property = SI_VS_BLIT_SGPRS_POS;
+ break;
+ case UTIL_BLITTER_ATTRIB_COLOR:
+ vs = num_layers > 1 ? &sctx->vs_blit_color_layered :
+ &sctx->vs_blit_color;
+ vs_blit_property = SI_VS_BLIT_SGPRS_POS_COLOR;
+ break;
+ case UTIL_BLITTER_ATTRIB_TEXCOORD_XY:
+ case UTIL_BLITTER_ATTRIB_TEXCOORD_XYZW:
+ assert(num_layers == 1);
+ vs = &sctx->vs_blit_texcoord;
+ vs_blit_property = SI_VS_BLIT_SGPRS_POS_TEXCOORD;
+ break;
+ default:
+ assert(0);
+ return NULL;
+ }
+ if (*vs)
+ return *vs;
+
+ struct ureg_program *ureg = ureg_create(PIPE_SHADER_VERTEX);
+ if (!ureg)
+ return NULL;
+
+ /* Tell the shader to load VS inputs from SGPRs: */
+ ureg_property(ureg, TGSI_PROPERTY_VS_BLIT_SGPRS, vs_blit_property);
+
+ /* This is just a pass-through shader with 1-3 MOV instructions. */
+ ureg_MOV(ureg,
+ ureg_DECL_output(ureg, TGSI_SEMANTIC_POSITION, 0),
+ ureg_DECL_vs_input(ureg, 0));
+
+ if (type != UTIL_BLITTER_ATTRIB_NONE) {
+ ureg_MOV(ureg,
+ ureg_DECL_output(ureg, TGSI_SEMANTIC_GENERIC, 0),
+ ureg_DECL_vs_input(ureg, 1));
+ }
+
+ if (num_layers > 1) {
+ struct ureg_src instance_id =
+ ureg_DECL_system_value(ureg, TGSI_SEMANTIC_INSTANCEID, 0);
+ struct ureg_dst layer =
+ ureg_DECL_output(ureg, TGSI_SEMANTIC_LAYER, 0);
+
+ ureg_MOV(ureg, ureg_writemask(layer, TGSI_WRITEMASK_X),
+ ureg_scalar(instance_id, TGSI_SWIZZLE_X));
+ }
+ ureg_END(ureg);
+
+ *vs = ureg_create_shader_and_destroy(ureg, pipe);
+ return *vs;
+}
+
void si_init_shader_functions(struct si_context *sctx)
{
si_init_atom(sctx, &sctx->spi_map, &sctx->atoms.s.spi_map, si_emit_spi_map);
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