diff options
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_context.h | 3 | ||||
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_curbe.c | 14 | ||||
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_vs_emit.c | 6 |
3 files changed, 15 insertions, 8 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_context.h b/src/mesa/drivers/dri/i965/brw_context.h index 4c2d3af8ae..a0b3b06309 100644 --- a/src/mesa/drivers/dri/i965/brw_context.h +++ b/src/mesa/drivers/dri/i965/brw_context.h @@ -187,7 +187,7 @@ struct brw_wm_prog_data { GLuint total_grf; GLuint total_scratch; - GLuint nr_params; + GLuint nr_params; /**< number of float params/constants */ GLboolean error; /* Pointer to tracked values (only valid once @@ -226,6 +226,7 @@ struct brw_vs_prog_data { GLuint urb_read_length; GLuint total_grf; GLuint outputs_written; + GLuint nr_params; /**< number of float params/constants */ GLuint inputs_read; diff --git a/src/mesa/drivers/dri/i965/brw_curbe.c b/src/mesa/drivers/dri/i965/brw_curbe.c index fe1de821f0..18b187ed1d 100644 --- a/src/mesa/drivers/dri/i965/brw_curbe.c +++ b/src/mesa/drivers/dri/i965/brw_curbe.c @@ -45,17 +45,21 @@ #include "brw_util.h" -/* Partition the CURBE between the various users of constant values: +/** + * Partition the CURBE between the various users of constant values: + * Note that vertex and fragment shaders can now fetch constants out + * of constant buffers. We no longer allocatea block of the GRF for + * constants. That greatly reduces the demand for space in the CURBE. + * Some of the comments within are dated... */ static void calculate_curbe_offsets( struct brw_context *brw ) { GLcontext *ctx = &brw->intel.ctx; /* CACHE_NEW_WM_PROG */ - GLuint nr_fp_regs = (brw->wm.prog_data->nr_params + 15) / 16; + const GLuint nr_fp_regs = (brw->wm.prog_data->nr_params + 15) / 16; /* BRW_NEW_VERTEX_PROGRAM */ - const struct brw_vertex_program *vp = brw_vertex_program_const(brw->vertex_program); - GLuint nr_vp_regs = (vp->program.Base.Parameters->NumParameters * 4 + 15) / 16; + const GLuint nr_vp_regs = (brw->vs.prog_data->nr_params + 15) / 16; GLuint nr_clip_regs = 0; GLuint total_regs; @@ -248,7 +252,7 @@ static void prepare_constant_buffer(struct brw_context *brw) /* vertex shader constants */ if (brw->curbe.vs_size) { GLuint offset = brw->curbe.vs_start * 16; - GLuint nr = vp->program.Base.Parameters->NumParameters; + GLuint nr = brw->vs.prog_data->nr_params / 4; _mesa_load_state_parameters(ctx, vp->program.Base.Parameters); diff --git a/src/mesa/drivers/dri/i965/brw_vs_emit.c b/src/mesa/drivers/dri/i965/brw_vs_emit.c index af0f501621..0c86c23ad9 100644 --- a/src/mesa/drivers/dri/i965/brw_vs_emit.c +++ b/src/mesa/drivers/dri/i965/brw_vs_emit.c @@ -68,7 +68,6 @@ static void release_tmps( struct brw_vs_compile *c ) static void brw_vs_alloc_regs( struct brw_vs_compile *c ) { GLuint i, reg = 0, mrf; - GLuint nr_params; #if 0 if (c->vp->program.Base.Parameters->NumParameters >= 6) @@ -100,15 +99,18 @@ static void brw_vs_alloc_regs( struct brw_vs_compile *c ) if (c->use_const_buffer) { /* get constants from a real constant buffer */ c->prog_data.curb_read_length = 0; + c->prog_data.nr_params = 4; /* XXX 0 causes a bug elsewhere... */ } else { /* use a section of the GRF for constants */ - nr_params = c->vp->program.Base.Parameters->NumParameters; + GLuint nr_params = c->vp->program.Base.Parameters->NumParameters; for (i = 0; i < nr_params; i++) { c->regs[PROGRAM_STATE_VAR][i] = stride( brw_vec4_grf(reg+i/2, (i%2) * 4), 0, 4, 1); } reg += (nr_params + 1) / 2; c->prog_data.curb_read_length = reg - 1; + + c->prog_data.nr_params = nr_params * 4; } /* Allocate input regs: |