diff options
Diffstat (limited to 'src/mesa/drivers/dri/i965/gen6_vs_state.c')
| -rw-r--r-- | src/mesa/drivers/dri/i965/gen6_vs_state.c | 119 |
1 files changed, 119 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/i965/gen6_vs_state.c b/src/mesa/drivers/dri/i965/gen6_vs_state.c new file mode 100644 index 0000000000..211a6231c9 --- /dev/null +++ b/src/mesa/drivers/dri/i965/gen6_vs_state.c @@ -0,0 +1,119 @@ +/* + * Copyright © 2009 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * 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 NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS 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. + * + * Authors: + * Eric Anholt <eric@anholt.net> + * + */ + +#include "brw_context.h" +#include "brw_state.h" +#include "brw_defines.h" +#include "brw_util.h" +#include "shader/prog_parameter.h" +#include "shader/prog_statevars.h" +#include "intel_batchbuffer.h" + +static void +upload_vs_state(struct brw_context *brw) +{ + struct intel_context *intel = &brw->intel; + GLcontext *ctx = &intel->ctx; + const struct brw_vertex_program *vp = + brw_vertex_program_const(brw->vertex_program); + unsigned int nr_params = vp->program.Base.Parameters->NumParameters; + drm_intel_bo *constant_bo; + int i; + + if (vp->use_const_buffer || nr_params == 0) { + /* Disable the push constant buffers. */ + BEGIN_BATCH(5); + OUT_BATCH(CMD_3D_CONSTANT_VS_STATE << 16 | (5 - 2)); + OUT_BATCH(0); + OUT_BATCH(0); + OUT_BATCH(0); + OUT_BATCH(0); + ADVANCE_BATCH(); + } else { + if (brw->vertex_program->IsNVProgram) + _mesa_load_tracked_matrices(ctx); + + /* Updates the ParamaterValues[i] pointers for all parameters of the + * basic type of PROGRAM_STATE_VAR. + */ + _mesa_load_state_parameters(ctx, vp->program.Base.Parameters); + + constant_bo = drm_intel_bo_alloc(intel->bufmgr, "VS constant_bo", + nr_params * 4 * sizeof(float), + 4096); + intel_bo_map_gtt_preferred(intel, constant_bo, GL_TRUE); + for (i = 0; i < nr_params; i++) { + memcpy((char *)constant_bo->virtual + i * 4 * sizeof(float), + vp->program.Base.Parameters->ParameterValues[i], + 4 * sizeof(float)); + } + intel_bo_unmap_gtt_preferred(intel, constant_bo); + + BEGIN_BATCH(5); + OUT_BATCH(CMD_3D_CONSTANT_VS_STATE << 16 | + GEN6_CONSTANT_BUFFER_0_ENABLE | + (5 - 2)); + OUT_RELOC(constant_bo, + I915_GEM_DOMAIN_RENDER, 0, /* XXX: bad domain */ + ALIGN(nr_params, 2) / 2 - 1); + OUT_BATCH(0); + OUT_BATCH(0); + OUT_BATCH(0); + ADVANCE_BATCH(); + + drm_intel_bo_unreference(constant_bo); + } + + intel_batchbuffer_emit_mi_flush(intel->batch); + + BEGIN_BATCH(6); + OUT_BATCH(CMD_3D_VS_STATE << 16 | (6 - 2)); + OUT_RELOC(brw->vs.prog_bo, I915_GEM_DOMAIN_INSTRUCTION, 0, 0); + OUT_BATCH((0 << GEN6_VS_SAMPLER_COUNT_SHIFT) | + (brw->vs.nr_surfaces << GEN6_VS_BINDING_TABLE_ENTRY_COUNT_SHIFT)); + OUT_BATCH(0); /* scratch space base offset */ + OUT_BATCH((1 << GEN6_VS_DISPATCH_START_GRF_SHIFT) | + (brw->vs.prog_data->urb_read_length << GEN6_VS_URB_READ_LENGTH_SHIFT) | + (0 << GEN6_VS_URB_ENTRY_READ_OFFSET_SHIFT)); + OUT_BATCH((0 << GEN6_VS_MAX_THREADS_SHIFT) | + GEN6_VS_STATISTICS_ENABLE); + ADVANCE_BATCH(); + + intel_batchbuffer_emit_mi_flush(intel->batch); +} + +const struct brw_tracked_state gen6_vs_state = { + .dirty = { + .mesa = _NEW_TRANSFORM | _NEW_PROGRAM_CONSTANTS, + .brw = (BRW_NEW_CURBE_OFFSETS | + BRW_NEW_NR_VS_SURFACES | + BRW_NEW_URB_FENCE | + BRW_NEW_CONTEXT), + .cache = CACHE_NEW_VS_PROG + }, + .emit = upload_vs_state, +}; |