static void si_init_shader_ctx(struct si_shader_context *ctx,
struct si_screen *sscreen,
- struct si_compiler *compiler);
+ struct ac_llvm_compiler *compiler);
static void si_llvm_emit_barrier(const struct lp_build_tgsi_action *action,
struct lp_build_tgsi_context *bld_base,
8 + SI_SGPR_VS_STATE_BITS);
#if !HAVE_32BIT_POINTERS
- ret = si_insert_input_ptr(ctx, ret, ctx->param_vs_state_bits + 1,
+ ret = si_insert_input_ptr(ctx, ret, ctx->param_vs_state_bits + 4,
8 + GFX9_SGPR_2ND_SAMPLERS_AND_IMAGES);
#endif
8 + SI_SGPR_BINDLESS_SAMPLERS_AND_IMAGES);
#if !HAVE_32BIT_POINTERS
- ret = si_insert_input_ptr(ctx, ret, ctx->param_vs_state_bits + 1,
+ ret = si_insert_input_ptr(ctx, ret, ctx->param_vs_state_bits + 4,
8 + GFX9_SGPR_2ND_SAMPLERS_AND_IMAGES);
#endif
* an IF statement is added that clamps all colors if the constant
* is true.
*/
- if (ctx->type == PIPE_SHADER_VERTEX) {
- struct lp_build_if_state if_ctx;
- LLVMValueRef cond = NULL;
- LLVMValueRef addr, val;
-
- for (i = 0; i < info->num_outputs; i++) {
- if (info->output_semantic_name[i] != TGSI_SEMANTIC_COLOR &&
- info->output_semantic_name[i] != TGSI_SEMANTIC_BCOLOR)
- continue;
+ struct lp_build_if_state if_ctx;
+ LLVMValueRef cond = NULL;
+ LLVMValueRef addr, val;
- /* We've found a color. */
- if (!cond) {
- /* The state is in the first bit of the user SGPR. */
- cond = LLVMGetParam(ctx->main_fn,
- ctx->param_vs_state_bits);
- cond = LLVMBuildTrunc(ctx->ac.builder, cond,
- ctx->i1, "");
- lp_build_if(&if_ctx, &ctx->gallivm, cond);
- }
+ for (i = 0; i < info->num_outputs; i++) {
+ if (info->output_semantic_name[i] != TGSI_SEMANTIC_COLOR &&
+ info->output_semantic_name[i] != TGSI_SEMANTIC_BCOLOR)
+ continue;
- for (j = 0; j < 4; j++) {
- addr = addrs[4 * i + j];
- val = LLVMBuildLoad(ctx->ac.builder, addr, "");
- val = ac_build_clamp(&ctx->ac, val);
- LLVMBuildStore(ctx->ac.builder, val, addr);
- }
+ /* We've found a color. */
+ if (!cond) {
+ /* The state is in the first bit of the user SGPR. */
+ cond = LLVMGetParam(ctx->main_fn,
+ ctx->param_vs_state_bits);
+ cond = LLVMBuildTrunc(ctx->ac.builder, cond,
+ ctx->i1, "");
+ lp_build_if(&if_ctx, &ctx->gallivm, cond);
}
- if (cond)
- lp_build_endif(&if_ctx);
+ for (j = 0; j < 4; j++) {
+ addr = addrs[4 * i + j];
+ val = LLVMBuildLoad(ctx->ac.builder, addr, "");
+ val = ac_build_clamp(&ctx->ac, val);
+ LLVMBuildStore(ctx->ac.builder, val, addr);
+ }
}
+ if (cond)
+ lp_build_endif(&if_ctx);
+
for (i = 0; i < info->num_outputs; i++) {
outputs[i].semantic_name = info->output_semantic_name[i];
outputs[i].semantic_index = info->output_semantic_index[i];
static void declare_vs_specific_input_sgprs(struct si_shader_context *ctx,
struct si_function_info *fninfo)
{
+ ctx->param_vs_state_bits = add_arg(fninfo, ARG_SGPR, ctx->i32);
add_arg_assign(fninfo, ARG_SGPR, ctx->i32, &ctx->abi.base_vertex);
add_arg_assign(fninfo, ARG_SGPR, ctx->i32, &ctx->abi.start_instance);
add_arg_assign(fninfo, ARG_SGPR, ctx->i32, &ctx->abi.draw_id);
- ctx->param_vs_state_bits = add_arg(fninfo, ARG_SGPR, ctx->i32);
}
static void declare_vs_input_vgprs(struct si_shader_context *ctx,
/* no extra parameters */
} else {
if (shader->is_gs_copy_shader) {
- fninfo.num_params = ctx->param_rw_buffers + 1;
+ fninfo.num_params = ctx->param_vs_state_bits + 1;
fninfo.num_sgpr_params = fninfo.num_params;
}
if (ctx->type == PIPE_SHADER_VERTEX) {
declare_vs_specific_input_sgprs(ctx, &fninfo);
} else {
+ ctx->param_vs_state_bits = add_arg(&fninfo, ARG_SGPR, ctx->i32);
ctx->param_tcs_offchip_layout = add_arg(&fninfo, ARG_SGPR, ctx->i32);
ctx->param_tes_offchip_addr = add_arg(&fninfo, ARG_SGPR, ctx->i32);
- if (!HAVE_32BIT_POINTERS) {
- /* Declare as many input SGPRs as the VS has. */
+ /* Declare as many input SGPRs as the VS has. */
+ if (!HAVE_32BIT_POINTERS)
add_arg(&fninfo, ARG_SGPR, ctx->i32); /* unused */
- ctx->param_vs_state_bits = add_arg(&fninfo, ARG_SGPR, ctx->i32); /* unused */
- }
}
if (!HAVE_32BIT_POINTERS) {
case PIPE_SHADER_TESS_EVAL:
declare_global_desc_pointers(ctx, &fninfo);
declare_per_stage_desc_pointers(ctx, &fninfo, true);
+ ctx->param_vs_state_bits = add_arg(&fninfo, ARG_SGPR, ctx->i32);
ctx->param_tcs_offchip_layout = add_arg(&fninfo, ARG_SGPR, ctx->i32);
ctx->param_tes_offchip_addr = add_arg(&fninfo, ARG_SGPR, ctx->i32);
static int si_compile_llvm(struct si_screen *sscreen,
struct ac_shader_binary *binary,
struct si_shader_config *conf,
- struct si_compiler *compiler,
+ struct ac_llvm_compiler *compiler,
LLVMModuleRef mod,
struct pipe_debug_callback *debug,
unsigned processor,
/* Generate code for the hardware VS shader stage to go with a geometry shader */
struct si_shader *
si_generate_gs_copy_shader(struct si_screen *sscreen,
- struct si_compiler *compiler,
+ struct ac_llvm_compiler *compiler,
struct si_shader_selector *gs_selector,
struct pipe_debug_callback *debug)
{
stream);
}
- if (stream == 0)
+ if (stream == 0) {
+ /* Vertex color clamping.
+ *
+ * This uses a state constant loaded in a user data SGPR and
+ * an IF statement is added that clamps all colors if the constant
+ * is true.
+ */
+ struct lp_build_if_state if_ctx;
+ LLVMValueRef v[2], cond = NULL;
+ LLVMBasicBlockRef blocks[2];
+
+ for (unsigned i = 0; i < gsinfo->num_outputs; i++) {
+ if (gsinfo->output_semantic_name[i] != TGSI_SEMANTIC_COLOR &&
+ gsinfo->output_semantic_name[i] != TGSI_SEMANTIC_BCOLOR)
+ continue;
+
+ /* We've found a color. */
+ if (!cond) {
+ /* The state is in the first bit of the user SGPR. */
+ cond = LLVMGetParam(ctx.main_fn,
+ ctx.param_vs_state_bits);
+ cond = LLVMBuildTrunc(ctx.ac.builder, cond,
+ ctx.i1, "");
+ lp_build_if(&if_ctx, &ctx.gallivm, cond);
+ /* Remember blocks for Phi. */
+ blocks[0] = if_ctx.true_block;
+ blocks[1] = if_ctx.entry_block;
+ }
+
+ for (unsigned j = 0; j < 4; j++) {
+ /* Insert clamp into the true block. */
+ v[0] = ac_build_clamp(&ctx.ac, outputs[i].values[j]);
+ v[1] = outputs[i].values[j];
+
+ /* Insert Phi into the endif block. */
+ LLVMPositionBuilderAtEnd(ctx.ac.builder, if_ctx.merge_block);
+ outputs[i].values[j] = ac_build_phi(&ctx.ac, ctx.f32, 2, v, blocks);
+ LLVMPositionBuilderAtEnd(ctx.ac.builder, if_ctx.true_block);
+ }
+ }
+ if (cond)
+ lp_build_endif(&if_ctx);
+
si_llvm_export_vs(&ctx, outputs, gsinfo->num_outputs);
+ }
LLVMBuildBr(builder, end_bb);
}
static void si_init_shader_ctx(struct si_shader_context *ctx,
struct si_screen *sscreen,
- struct si_compiler *compiler)
+ struct ac_llvm_compiler *compiler)
{
struct lp_build_tgsi_context *bld_base;
}
int si_compile_tgsi_shader(struct si_screen *sscreen,
- struct si_compiler *compiler,
+ struct ac_llvm_compiler *compiler,
struct si_shader *shader,
struct pipe_debug_callback *debug)
{
enum pipe_shader_type type,
bool prolog,
union si_shader_part_key *key,
- struct si_compiler *compiler,
+ struct ac_llvm_compiler *compiler,
struct pipe_debug_callback *debug,
void (*build)(struct si_shader_context *,
union si_shader_part_key *),
}
static bool si_get_vs_prolog(struct si_screen *sscreen,
- struct si_compiler *compiler,
+ struct ac_llvm_compiler *compiler,
struct si_shader *shader,
struct pipe_debug_callback *debug,
struct si_shader *main_part,
* Select and compile (or reuse) vertex shader parts (prolog & epilog).
*/
static bool si_shader_select_vs_parts(struct si_screen *sscreen,
- struct si_compiler *compiler,
+ struct ac_llvm_compiler *compiler,
struct si_shader *shader,
struct pipe_debug_callback *debug)
{
* Select and compile (or reuse) TCS parts (epilog).
*/
static bool si_shader_select_tcs_parts(struct si_screen *sscreen,
- struct si_compiler *compiler,
+ struct ac_llvm_compiler *compiler,
struct si_shader *shader,
struct pipe_debug_callback *debug)
{
* Select and compile (or reuse) GS parts (prolog).
*/
static bool si_shader_select_gs_parts(struct si_screen *sscreen,
- struct si_compiler *compiler,
+ struct ac_llvm_compiler *compiler,
struct si_shader *shader,
struct pipe_debug_callback *debug)
{
* Select and compile (or reuse) pixel shader parts (prolog & epilog).
*/
static bool si_shader_select_ps_parts(struct si_screen *sscreen,
- struct si_compiler *compiler,
+ struct ac_llvm_compiler *compiler,
struct si_shader *shader,
struct pipe_debug_callback *debug)
{
}
}
-int si_shader_create(struct si_screen *sscreen, struct si_compiler *compiler,
+int si_shader_create(struct si_screen *sscreen, struct ac_llvm_compiler *compiler,
struct si_shader *shader,
struct pipe_debug_callback *debug)
{
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