/*
Copyright (C) Intel Corp. 2006. All Rights Reserved.
- Intel funded Tungsten Graphics (http://www.tungstengraphics.com) to
+ Intel funded Tungsten Graphics to
develop this 3D driver.
Permission is hereby granted, free of charge, to any person obtaining
**********************************************************************/
/*
* Authors:
- * Keith Whitwell <keith@tungstengraphics.com>
+ * Keith Whitwell <keithw@vmware.com>
*/
#include "main/mtypes.h"
#include "brw_context.h"
#include "brw_state.h"
+#include "intel_buffer_objects.h"
-/* Creates a new VS constant buffer reflecting the current VS program's
- * constants, if needed by the VS program.
+/**
+ * Creates a temporary BO containing the pull constant data for the shader
+ * stage, and the SURFACE_STATE struct that points at it.
*
- * Otherwise, constants go through the CURBEs using the brw_constant_buffer
- * state atom.
+ * 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.
*/
-static void
-brw_upload_vs_pull_constants(struct brw_context *brw)
+void
+brw_upload_pull_constants(struct brw_context *brw,
+ GLbitfield brw_new_constbuf,
+ const struct gl_program *prog,
+ struct brw_stage_state *stage_state,
+ const struct brw_stage_prog_data *prog_data,
+ bool dword_pitch)
{
- struct gl_context *ctx = &brw->intel.ctx;
- struct intel_context *intel = &brw->intel;
- /* BRW_NEW_VERTEX_PROGRAM */
- struct brw_vertex_program *vp =
- (struct brw_vertex_program *) brw->vertex_program;
- const struct gl_program_parameter_list *params = vp->program.Base.Parameters;
int i;
+ uint32_t surf_index = prog_data->binding_table.pull_constants_start;
- if (vp->program.IsNVProgram)
- _mesa_load_tracked_matrices(ctx);
+ if (!prog_data->nr_pull_params) {
+ if (stage_state->surf_offset[surf_index]) {
+ stage_state->surf_offset[surf_index] = 0;
+ brw->state.dirty.brw |= 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->intel.ctx, vp->program.Base.Parameters);
-
- /* CACHE_NEW_VS_PROG */
- if (!brw->vs.prog_data->nr_pull_params) {
- if (brw->vs.const_bo) {
- drm_intel_bo_unreference(brw->vs.const_bo);
- brw->vs.const_bo = NULL;
- brw->bind.surf_offset[SURF_INDEX_VERT_CONST_BUFFER] = 0;
- brw->state.dirty.brw |= BRW_NEW_VS_CONSTBUF;
- }
- return;
- }
+ _mesa_load_state_parameters(&brw->ctx, prog->Parameters);
- /* _NEW_PROGRAM_CONSTANTS */
- drm_intel_bo_unreference(brw->vs.const_bo);
- brw->vs.const_bo = drm_intel_bo_alloc(intel->bufmgr, "vp_const_buffer",
- brw->vs.prog_data->nr_pull_params * 4,
- 64);
-
- drm_intel_gem_bo_map_gtt(brw->vs.const_bo);
- for (i = 0; i < brw->vs.prog_data->nr_pull_params; i++) {
- memcpy(brw->vs.const_bo->virtual + i * 4,
- brw->vs.prog_data->pull_param[i],
- 4);
+ /* BRW_NEW_*_PROG_DATA | _NEW_PROGRAM_CONSTANTS */
+ uint32_t size = prog_data->nr_pull_params * 4;
+ drm_intel_bo *const_bo = NULL;
+ uint32_t const_offset;
+ gl_constant_value *constants = intel_upload_space(brw, size, 64,
+ &const_bo, &const_offset);
+
+ STATIC_ASSERT(sizeof(gl_constant_value) == sizeof(float));
+
+ for (i = 0; i < prog_data->nr_pull_params; i++) {
+ constants[i] = *prog_data->pull_param[i];
}
if (0) {
- for (i = 0; i < params->NumParameters; i++) {
- float *row = (float *)brw->vs.const_bo->virtual + i * 4;
- printf("vs const surface %3d: %4.3f %4.3f %4.3f %4.3f\n",
- i, row[0], row[1], row[2], row[3]);
+ 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);
}
}
- drm_intel_gem_bo_unmap_gtt(brw->vs.const_bo);
+ brw_create_constant_surface(brw, const_bo, const_offset, size,
+ &stage_state->surf_offset[surf_index],
+ dword_pitch);
+ drm_intel_bo_unreference(const_bo);
+
+ brw->state.dirty.brw |= brw_new_constbuf;
+}
+
+
+/* Creates a new VS constant buffer reflecting the current VS program's
+ * constants, if needed by the VS program.
+ *
+ * Otherwise, constants go through the CURBEs using the brw_constant_buffer
+ * state atom.
+ */
+static void
+brw_upload_vs_pull_constants(struct brw_context *brw)
+{
+ struct brw_stage_state *stage_state = &brw->vs.base;
+ bool dword_pitch;
+
+ /* BRW_NEW_VERTEX_PROGRAM */
+ struct brw_vertex_program *vp =
+ (struct brw_vertex_program *) brw->vertex_program;
+
+ /* BRW_NEW_VS_PROG_DATA */
+ const struct brw_stage_prog_data *prog_data = &brw->vs.prog_data->base.base;
- const int surf = SURF_INDEX_VERT_CONST_BUFFER;
- intel->vtbl.create_constant_surface(brw, brw->vs.const_bo,
- params->NumParameters,
- &brw->bind.surf_offset[surf]);
+ dword_pitch = brw->vs.prog_data->base.simd8;
- brw->state.dirty.brw |= BRW_NEW_VS_CONSTBUF;
+ /* _NEW_PROGRAM_CONSTANTS */
+ brw_upload_pull_constants(brw, BRW_NEW_VS_CONSTBUF, &vp->program.Base,
+ stage_state, prog_data, dword_pitch);
}
const struct brw_tracked_state brw_vs_pull_constants = {
.dirty = {
- .mesa = (_NEW_PROGRAM_CONSTANTS),
- .brw = (BRW_NEW_BATCH | BRW_NEW_VERTEX_PROGRAM),
- .cache = CACHE_NEW_VS_PROG,
+ .mesa = _NEW_PROGRAM_CONSTANTS,
+ .brw = BRW_NEW_BATCH |
+ BRW_NEW_VERTEX_PROGRAM |
+ BRW_NEW_VS_PROG_DATA,
},
.emit = brw_upload_vs_pull_constants,
};
+
+static void
+brw_upload_vs_ubo_surfaces(struct brw_context *brw)
+{
+ struct gl_context *ctx = &brw->ctx;
+ /* _NEW_PROGRAM */
+ struct gl_shader_program *prog =
+ ctx->_Shader->CurrentProgram[MESA_SHADER_VERTEX];
+ bool dword_pitch;
+
+ if (!prog)
+ return;
+
+ /* BRW_NEW_VS_PROG_DATA */
+ dword_pitch = brw->vs.prog_data->base.simd8;
+ brw_upload_ubo_surfaces(brw, prog->_LinkedShaders[MESA_SHADER_VERTEX],
+ &brw->vs.base, &brw->vs.prog_data->base.base,
+ dword_pitch);
+}
+
+const struct brw_tracked_state brw_vs_ubo_surfaces = {
+ .dirty = {
+ .mesa = _NEW_PROGRAM,
+ .brw = BRW_NEW_BATCH |
+ BRW_NEW_UNIFORM_BUFFER |
+ BRW_NEW_VS_PROG_DATA,
+ },
+ .emit = brw_upload_vs_ubo_surfaces,
+};
+
+static void
+brw_upload_vs_abo_surfaces(struct brw_context *brw)
+{
+ struct gl_context *ctx = &brw->ctx;
+ /* _NEW_PROGRAM */
+ struct gl_shader_program *prog =
+ ctx->_Shader->CurrentProgram[MESA_SHADER_VERTEX];
+
+ if (prog) {
+ /* BRW_NEW_VS_PROG_DATA */
+ brw_upload_abo_surfaces(brw, prog, &brw->vs.base,
+ &brw->vs.prog_data->base.base);
+ }
+}
+
+const struct brw_tracked_state brw_vs_abo_surfaces = {
+ .dirty = {
+ .mesa = _NEW_PROGRAM,
+ .brw = BRW_NEW_ATOMIC_BUFFER |
+ BRW_NEW_BATCH |
+ BRW_NEW_VS_PROG_DATA,
+ },
+ .emit = brw_upload_vs_abo_surfaces,
+};