0,0 → 1,225 |
/************************************************************************** |
* |
* Copyright 2007 VMware, Inc. |
* All Rights Reserved. |
* |
* 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, sub license, 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 NON-INFRINGEMENT. |
* IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS 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. |
* |
**************************************************************************/ |
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#include "draw/draw_pipe.h" |
#include "util/u_math.h" |
#include "util/u_memory.h" |
#include "util/u_pack_color.h" |
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#include "i915_context.h" |
#include "i915_reg.h" |
#include "i915_state.h" |
#include "i915_batch.h" |
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/** |
* Primitive emit to hardware. No support for vertex buffers or any |
* nice fast paths. |
*/ |
struct setup_stage { |
struct draw_stage stage; /**< This must be first (base class) */ |
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struct i915_context *i915; |
}; |
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/** |
* Basically a cast wrapper. |
*/ |
static INLINE struct setup_stage *setup_stage( struct draw_stage *stage ) |
{ |
return (struct setup_stage *)stage; |
} |
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/** |
* Extract the needed fields from vertex_header and emit i915 dwords. |
* Recall that the vertices are constructed by the 'draw' module and |
* have a couple of slots at the beginning (1-dword header, 4-dword |
* clip pos) that we ignore here. |
*/ |
static INLINE void |
emit_hw_vertex( struct i915_context *i915, |
const struct vertex_header *vertex) |
{ |
const struct vertex_info *vinfo = &i915->current.vertex_info; |
uint i; |
uint count = 0; /* for debug/sanity */ |
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assert(!i915->dirty); |
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for (i = 0; i < vinfo->num_attribs; i++) { |
const uint j = vinfo->attrib[i].src_index; |
const float *attrib = vertex->data[j]; |
switch (vinfo->attrib[i].emit) { |
case EMIT_1F: |
OUT_BATCH( fui(attrib[0]) ); |
count++; |
break; |
case EMIT_2F: |
OUT_BATCH( fui(attrib[0]) ); |
OUT_BATCH( fui(attrib[1]) ); |
count += 2; |
break; |
case EMIT_3F: |
OUT_BATCH( fui(attrib[0]) ); |
OUT_BATCH( fui(attrib[1]) ); |
OUT_BATCH( fui(attrib[2]) ); |
count += 3; |
break; |
case EMIT_4F: |
OUT_BATCH( fui(attrib[0]) ); |
OUT_BATCH( fui(attrib[1]) ); |
OUT_BATCH( fui(attrib[2]) ); |
OUT_BATCH( fui(attrib[3]) ); |
count += 4; |
break; |
case EMIT_4UB: |
OUT_BATCH( pack_ub4(float_to_ubyte( attrib[0] ), |
float_to_ubyte( attrib[1] ), |
float_to_ubyte( attrib[2] ), |
float_to_ubyte( attrib[3] )) ); |
count += 1; |
break; |
case EMIT_4UB_BGRA: |
OUT_BATCH( pack_ub4(float_to_ubyte( attrib[2] ), |
float_to_ubyte( attrib[1] ), |
float_to_ubyte( attrib[0] ), |
float_to_ubyte( attrib[3] )) ); |
count += 1; |
break; |
default: |
assert(0); |
} |
} |
assert(count == vinfo->size); |
} |
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static INLINE void |
emit_prim( struct draw_stage *stage, |
struct prim_header *prim, |
unsigned hwprim, |
unsigned nr ) |
{ |
struct i915_context *i915 = setup_stage(stage)->i915; |
unsigned vertex_size; |
unsigned i; |
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if (i915->dirty) |
i915_update_derived( i915 ); |
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if (i915->hardware_dirty) |
i915_emit_hardware_state( i915 ); |
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/* need to do this after validation! */ |
vertex_size = i915->current.vertex_info.size * 4; /* in bytes */ |
assert(vertex_size >= 12); /* never smaller than 12 bytes */ |
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if (!BEGIN_BATCH( 1 + nr * vertex_size / 4)) { |
FLUSH_BATCH(NULL, I915_FLUSH_ASYNC); |
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/* Make sure state is re-emitted after a flush: |
*/ |
i915_emit_hardware_state( i915 ); |
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if (!BEGIN_BATCH( 1 + nr * vertex_size / 4)) { |
assert(0); |
return; |
} |
} |
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/* Emit each triangle as a single primitive. I told you this was |
* simple. |
*/ |
OUT_BATCH(_3DPRIMITIVE | |
hwprim | |
((4 + vertex_size * nr)/4 - 2)); |
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for (i = 0; i < nr; i++) |
emit_hw_vertex(i915, prim->v[i]); |
} |
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static void |
setup_tri( struct draw_stage *stage, struct prim_header *prim ) |
{ |
emit_prim( stage, prim, PRIM3D_TRILIST, 3 ); |
} |
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static void |
setup_line(struct draw_stage *stage, struct prim_header *prim) |
{ |
emit_prim( stage, prim, PRIM3D_LINELIST, 2 ); |
} |
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static void |
setup_point(struct draw_stage *stage, struct prim_header *prim) |
{ |
emit_prim( stage, prim, PRIM3D_POINTLIST, 1 ); |
} |
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static void setup_flush( struct draw_stage *stage, unsigned flags ) |
{ |
} |
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static void reset_stipple_counter( struct draw_stage *stage ) |
{ |
} |
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static void render_destroy( struct draw_stage *stage ) |
{ |
FREE( stage ); |
} |
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/** |
* Create a new primitive setup/render stage. This gets plugged into |
* the 'draw' module's pipeline. |
*/ |
struct draw_stage *i915_draw_render_stage( struct i915_context *i915 ) |
{ |
struct setup_stage *setup = CALLOC_STRUCT(setup_stage); |
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setup->i915 = i915; |
setup->stage.draw = i915->draw; |
setup->stage.point = setup_point; |
setup->stage.line = setup_line; |
setup->stage.tri = setup_tri; |
setup->stage.flush = setup_flush; |
setup->stage.reset_stipple_counter = reset_stipple_counter; |
setup->stage.destroy = render_destroy; |
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return &setup->stage; |
} |