#include "brw_context.h"
#include "brw_state.h"
#include "brw_defines.h"
+#include "brw_program.h"
#include "intel_batchbuffer.h"
#include "intel_buffer_objects.h"
#include "program/prog_parameter.h"
+#include "main/shaderapi.h"
+
+static uint32_t
+f_as_u32(float f)
+{
+ union fi fi = { .f = f };
+ return fi.ui;
+}
+
+static uint32_t
+brw_param_value(struct brw_context *brw,
+ const struct gl_program *prog,
+ const struct brw_stage_state *stage_state,
+ uint32_t param)
+{
+ struct gl_context *ctx = &brw->ctx;
+
+ switch (BRW_PARAM_DOMAIN(param)) {
+ case BRW_PARAM_DOMAIN_BUILTIN:
+ if (param == BRW_PARAM_BUILTIN_ZERO) {
+ return 0;
+ } else if (BRW_PARAM_BUILTIN_IS_CLIP_PLANE(param)) {
+ gl_clip_plane *clip_planes = brw_select_clip_planes(ctx);
+ unsigned idx = BRW_PARAM_BUILTIN_CLIP_PLANE_IDX(param);
+ unsigned comp = BRW_PARAM_BUILTIN_CLIP_PLANE_COMP(param);
+ return ((uint32_t *)clip_planes[idx])[comp];
+ } else if (param >= BRW_PARAM_BUILTIN_TESS_LEVEL_OUTER_X &&
+ param <= BRW_PARAM_BUILTIN_TESS_LEVEL_OUTER_W) {
+ unsigned i = param - BRW_PARAM_BUILTIN_TESS_LEVEL_OUTER_X;
+ return f_as_u32(ctx->TessCtrlProgram.patch_default_outer_level[i]);
+ } else if (param == BRW_PARAM_BUILTIN_TESS_LEVEL_INNER_X) {
+ return f_as_u32(ctx->TessCtrlProgram.patch_default_inner_level[0]);
+ } else if (param == BRW_PARAM_BUILTIN_TESS_LEVEL_INNER_Y) {
+ return f_as_u32(ctx->TessCtrlProgram.patch_default_inner_level[1]);
+ } else {
+ unreachable("Invalid param builtin");
+ }
+
+ case BRW_PARAM_DOMAIN_PARAMETER: {
+ unsigned idx = BRW_PARAM_PARAMETER_IDX(param);
+ unsigned offset = prog->Parameters->ParameterValueOffset[idx];
+ unsigned comp = BRW_PARAM_PARAMETER_COMP(param);
+ assert(idx < prog->Parameters->NumParameters);
+ return prog->Parameters->ParameterValues[offset + comp].u;
+ }
+
+ case BRW_PARAM_DOMAIN_UNIFORM: {
+ unsigned idx = BRW_PARAM_UNIFORM_IDX(param);
+ assert(idx < prog->sh.data->NumUniformDataSlots);
+ return prog->sh.data->UniformDataSlots[idx].u;
+ }
+
+ case BRW_PARAM_DOMAIN_IMAGE: {
+ unsigned idx = BRW_PARAM_IMAGE_IDX(param);
+ unsigned offset = BRW_PARAM_IMAGE_OFFSET(param);
+ assert(offset < ARRAY_SIZE(stage_state->image_param));
+ return ((uint32_t *)&stage_state->image_param[idx])[offset];
+ }
+
+ default:
+ unreachable("Invalid param domain");
+ }
+}
+
+
+void
+brw_populate_constant_data(struct brw_context *brw,
+ const struct gl_program *prog,
+ const struct brw_stage_state *stage_state,
+ void *void_dst,
+ const uint32_t *param,
+ unsigned nr_params)
+{
+ uint32_t *dst = void_dst;
+ for (unsigned i = 0; i < nr_params; i++)
+ dst[i] = brw_param_value(brw, prog, stage_state, param[i]);
+}
+
/**
* Creates a streamed BO containing the push constants for the VS or GS on
const struct gen_device_info *devinfo = &brw->screen->devinfo;
struct gl_context *ctx = &brw->ctx;
- if (prog_data->nr_params == 0) {
+ bool active = prog_data &&
+ (stage_state->stage != MESA_SHADER_TESS_CTRL ||
+ brw->programs[MESA_SHADER_TESS_EVAL]);
+
+ if (active)
+ _mesa_shader_write_subroutine_indices(ctx, stage_state->stage);
+
+ if (!active || prog_data->nr_params == 0) {
stage_state->push_const_size = 0;
} else {
/* Updates the ParamaterValues[i] pointers for all parameters of the
const int size = prog_data->nr_params * sizeof(gl_constant_value);
gl_constant_value *param;
if (devinfo->gen >= 8 || devinfo->is_haswell) {
- param = intel_upload_space(brw, size, 32,
- &stage_state->push_const_bo,
- &stage_state->push_const_offset);
+ param = brw_upload_space(&brw->upload, size, 32,
+ &stage_state->push_const_bo,
+ &stage_state->push_const_offset);
} else {
param = brw_state_batch(brw, size, 32,
&stage_state->push_const_offset);
* side effect of dereferencing uniforms, so _NEW_PROGRAM_CONSTANTS
* wouldn't be set for them.
*/
- for (i = 0; i < prog_data->nr_params; i++) {
- param[i] = *prog_data->param[i];
- }
+ brw_populate_constant_data(brw, prog, stage_state, param,
+ prog_data->param,
+ prog_data->nr_params);
if (0) {
fprintf(stderr, "%s constants:\n",
stage_state->push_constants_dirty = true;
}
+
+
+/**
+ * Creates a temporary BO containing the pull constant data for the shader
+ * stage, and the SURFACE_STATE struct that points at it.
+ *
+ * Pull constants are GLSL uniforms (and other constant data) beyond what we
+ * could fit as push constants, or that have variable-index array access
+ * (which is easiest to support using pull constants, and avoids filling
+ * register space with mostly-unused data).
+ *
+ * Compare this path to brw_curbe.c for gen4/5 push constants, and
+ * gen6_vs_state.c for gen6+ push constants.
+ */
+void
+brw_upload_pull_constants(struct brw_context *brw,
+ GLbitfield64 brw_new_constbuf,
+ const struct gl_program *prog,
+ struct brw_stage_state *stage_state,
+ const struct brw_stage_prog_data *prog_data)
+{
+ unsigned i;
+ uint32_t surf_index = prog_data->binding_table.pull_constants_start;
+
+ if (!prog_data->nr_pull_params) {
+ if (stage_state->surf_offset[surf_index]) {
+ stage_state->surf_offset[surf_index] = 0;
+ brw->ctx.NewDriverState |= brw_new_constbuf;
+ }
+ return;
+ }
+
+ /* Updates the ParamaterValues[i] pointers for all parameters of the
+ * basic type of PROGRAM_STATE_VAR.
+ */
+ _mesa_load_state_parameters(&brw->ctx, prog->Parameters);
+
+ /* BRW_NEW_*_PROG_DATA | _NEW_PROGRAM_CONSTANTS */
+ uint32_t size = prog_data->nr_pull_params * 4;
+ struct brw_bo *const_bo = NULL;
+ uint32_t const_offset;
+ gl_constant_value *constants = brw_upload_space(&brw->upload, size, 64,
+ &const_bo, &const_offset);
+
+ STATIC_ASSERT(sizeof(gl_constant_value) == sizeof(float));
+
+ brw_populate_constant_data(brw, prog, stage_state, constants,
+ prog_data->pull_param,
+ prog_data->nr_pull_params);
+
+ if (0) {
+ for (i = 0; i < ALIGN(prog_data->nr_pull_params, 4) / 4; i++) {
+ const gl_constant_value *row = &constants[i * 4];
+ fprintf(stderr, "const surface %3d: %4.3f %4.3f %4.3f %4.3f\n",
+ i, row[0].f, row[1].f, row[2].f, row[3].f);
+ }
+ }
+
+ brw_emit_buffer_surface_state(brw, &stage_state->surf_offset[surf_index],
+ const_bo, const_offset,
+ ISL_FORMAT_R32G32B32A32_FLOAT,
+ size, 1, 0);
+
+ brw_bo_unreference(const_bo);
+
+ brw->ctx.NewDriverState |= brw_new_constbuf;
+}
+
+/**
+ * Creates a region containing the push constants for the CS on gen7+.
+ *
+ * Push constants are constant values (such as GLSL uniforms) that are
+ * pre-loaded into a shader stage's register space at thread spawn time.
+ *
+ * For other stages, see brw_curbe.c:brw_upload_constant_buffer for the
+ * equivalent gen4/5 code and gen6_vs_state.c:gen6_upload_push_constants for
+ * gen6+.
+ */
+void
+brw_upload_cs_push_constants(struct brw_context *brw,
+ const struct gl_program *prog,
+ const struct brw_cs_prog_data *cs_prog_data,
+ struct brw_stage_state *stage_state)
+{
+ struct gl_context *ctx = &brw->ctx;
+ const struct brw_stage_prog_data *prog_data =
+ (struct brw_stage_prog_data*) cs_prog_data;
+
+ /* Updates the ParamaterValues[i] pointers for all parameters of the
+ * basic type of PROGRAM_STATE_VAR.
+ */
+ /* XXX: Should this happen somewhere before to get our state flag set? */
+ _mesa_load_state_parameters(ctx, prog->Parameters);
+
+ if (cs_prog_data->push.total.size == 0) {
+ stage_state->push_const_size = 0;
+ return;
+ }
+
+
+ uint32_t *param =
+ brw_state_batch(brw, ALIGN(cs_prog_data->push.total.size, 64),
+ 64, &stage_state->push_const_offset);
+ assert(param);
+
+ STATIC_ASSERT(sizeof(gl_constant_value) == sizeof(float));
+
+ if (cs_prog_data->push.cross_thread.size > 0) {
+ uint32_t *param_copy = param;
+ for (unsigned i = 0;
+ i < cs_prog_data->push.cross_thread.dwords;
+ i++) {
+ assert(prog_data->param[i] != BRW_PARAM_BUILTIN_SUBGROUP_ID);
+ param_copy[i] = brw_param_value(brw, prog, stage_state,
+ prog_data->param[i]);
+ }
+ }
+
+ if (cs_prog_data->push.per_thread.size > 0) {
+ for (unsigned t = 0; t < cs_prog_data->threads; t++) {
+ unsigned dst =
+ 8 * (cs_prog_data->push.per_thread.regs * t +
+ cs_prog_data->push.cross_thread.regs);
+ unsigned src = cs_prog_data->push.cross_thread.dwords;
+ for ( ; src < prog_data->nr_params; src++, dst++) {
+ if (prog_data->param[src] == BRW_PARAM_BUILTIN_SUBGROUP_ID) {
+ param[dst] = t;
+ } else {
+ param[dst] = brw_param_value(brw, prog, stage_state,
+ prog_data->param[src]);
+ }
+ }
+ }
+ }
+
+ stage_state->push_const_size =
+ cs_prog_data->push.cross_thread.regs +
+ cs_prog_data->push.per_thread.regs;
+}
projects / mesa.git / blobdiff