/* tell drawing pipeline we're beginning drawing */
draw->pipeline.first->begin( draw->pipeline.first );
- draw_invalidate_vcache( draw );
+ /* XXX: Shouldn't really be needed - cache should be invalidated
+ * after setting new vertex buffers, vertex elements, but not
+ * between draws.
+ */
+ draw_vertex_cache_invalidate( draw );
draw_set_prim( draw, prim );
};
-static INLINE unsigned
-compute_clipmask(float cx, float cy, float cz, float cw)
-{
- unsigned mask;
-#if defined(macintosh) || defined(__powerpc__)
- /* on powerpc cliptest is 17% faster in this way. */
- mask = (((cw < cx) << CLIP_RIGHT_SHIFT));
- mask |= (((cw < -cx) << CLIP_LEFT_SHIFT));
- mask |= (((cw < cy) << CLIP_TOP_SHIFT));
- mask |= (((cw < -cy) << CLIP_BOTTOM_SHIFT));
- mask |= (((cw < cz) << CLIP_FAR_SHIFT));
- mask |= (((cw < -cz) << CLIP_NEAR_SHIFT));
-#else /* !defined(macintosh)) */
- mask = 0x0;
- if (-cx + cw < 0) mask |= CLIP_RIGHT_BIT;
- if ( cx + cw < 0) mask |= CLIP_LEFT_BIT;
- if (-cy + cw < 0) mask |= CLIP_TOP_BIT;
- if ( cy + cw < 0) mask |= CLIP_BOTTOM_BIT;
- if (-cz + cw < 0) mask |= CLIP_FAR_BIT;
- if ( cz + cw < 0) mask |= CLIP_NEAR_BIT;
-#endif /* defined(macintosh) */
- return mask;
-}
-
-
-/**
- * Fetch a float[4] vertex attribute from memory, doing format/type
- * conversion as needed.
- * XXX this might be a temporary thing.
- */
-static void
-fetch_attrib4(const void *ptr, unsigned format, float attrib[4])
-{
- /* defaults */
- attrib[1] = 0.0;
- attrib[2] = 0.0;
- attrib[3] = 1.0;
- switch (format) {
- case PIPE_FORMAT_R32G32B32A32_FLOAT:
- attrib[3] = ((float *) ptr)[3];
- /* fall-through */
- case PIPE_FORMAT_R32G32B32_FLOAT:
- attrib[2] = ((float *) ptr)[2];
- /* fall-through */
- case PIPE_FORMAT_R32G32_FLOAT:
- attrib[1] = ((float *) ptr)[1];
- /* fall-through */
- case PIPE_FORMAT_R32_FLOAT:
- attrib[0] = ((float *) ptr)[0];
- break;
- default:
- assert(0);
- }
-}
-
-#if !defined(XSTDCALL)
-#if defined(WIN32)
-#define XSTDCALL __stdcall
-#else
-#define XSTDCALL
-#endif
-#endif
-
-#if defined(USE_X86_ASM) || defined(SLANG_X86)
-typedef void (XSTDCALL *sse2_function)(
- const struct tgsi_exec_vector *input,
- struct tgsi_exec_vector *output,
- float (*constant)[4],
- struct tgsi_exec_vector *temporary );
-#endif
-
-/**
- * Transform vertices with the current vertex program/shader
- * Up to four vertices can be shaded at a time.
- * \param vbuffer the input vertex data
- * \param elts indexes of four input vertices
- * \param count number of vertices to shade [1..4]
- * \param vOut array of pointers to four output vertices
- */
-static void
-run_vertex_program(struct draw_context *draw,
- unsigned elts[4], unsigned count,
- struct vertex_header *vOut[])
-{
- struct tgsi_exec_machine machine;
- unsigned int j;
-
-#if 0
- FILE *file = stdout;
-#endif
-
- ALIGN16_DECL(struct tgsi_exec_vector, inputs, PIPE_ATTRIB_MAX);
- ALIGN16_DECL(struct tgsi_exec_vector, outputs, PIPE_ATTRIB_MAX);
- const float *scale = draw->viewport.scale;
- const float *trans = draw->viewport.translate;
-
- assert(count <= 4);
- assert(draw->vertex_shader.outputs_written & (1 << TGSI_ATTRIB_POS));
-
-#if 0
- if( file == NULL ) {
- file = fopen( "vs-exec.txt", "wt" );
- }
-#endif
-
-#ifdef DEBUG
- memset( &machine, 0, sizeof( machine ) );
-#endif
-
- /* init machine state */
- tgsi_exec_machine_init(&machine,
- draw->vertex_shader.tokens,
- PIPE_MAX_SAMPLERS,
- NULL /*samplers*/ );
-
- /* Consts does not require 16 byte alignment. */
- machine.Consts = (float (*)[4]) draw->mapped_constants;
-
- machine.Inputs = ALIGN16_ASSIGN(inputs);
- machine.Outputs = ALIGN16_ASSIGN(outputs);
-
-
-#if 0
- {
- unsigned attr;
- for (attr = 0; attr < 16; attr++) {
- if (draw->vertex_shader.inputs_read & (1 << attr)) {
- unsigned buf = draw->vertex_element[attr].vertex_buffer_index;
- fprintf(file, "attr %d: buf_off %d src_off %d pitch %d\n",
- attr,
- draw->vertex_buffer[buf].buffer_offset,
- draw->vertex_element[attr].src_offset,
- draw->vertex_buffer[buf].pitch);
- }
- }
- }
-#endif
-
- /* load machine inputs */
- for (j = 0; j < count; j++) {
- unsigned attr;
- for (attr = 0; attr < 16; attr++) {
- if (draw->vertex_shader.inputs_read & (1 << attr)) {
- unsigned buf = draw->vertex_element[attr].vertex_buffer_index;
- const void *src
- = (const void *) ((const ubyte *) draw->mapped_vbuffer[buf]
- + draw->vertex_buffer[buf].buffer_offset
- + draw->vertex_element[attr].src_offset
- + elts[j] * draw->vertex_buffer[buf].pitch);
- float p[4];
-
- fetch_attrib4(src, draw->vertex_element[attr].src_format, p);
-
- machine.Inputs[attr].xyzw[0].f[j] = p[0]; /*X*/
- machine.Inputs[attr].xyzw[1].f[j] = p[1]; /*Y*/
- machine.Inputs[attr].xyzw[2].f[j] = p[2]; /*Z*/
- machine.Inputs[attr].xyzw[3].f[j] = p[3]; /*W*/
-#if 0
- fprintf(file, "Input vertex %d: attr %d: %f %f %f %f\n",
- j, attr, p[0], p[1], p[2], p[3]);
- fflush( file );
-#endif
- }
- }
- }
-
-#if 0
- printf("Vertex shader Constants:\n");
- {
- int i;
- for (i = 0; i < 4; i++) {
- printf(" %d: %f %f %f %f\n", i,
- machine.Consts[i][0],
- machine.Consts[i][1],
- machine.Consts[i][2],
- machine.Consts[i][3]);
- }
- }
-#endif
-
- /* run shader */
- if( draw->vertex_shader.executable != NULL ) {
-#if defined(USE_X86_ASM) || defined(SLANG_X86)
- sse2_function func = (sse2_function) draw->vertex_shader.executable;
- func(
- machine.Inputs,
- machine.Outputs,
- machine.Consts,
- machine.Temps );
-#else
- assert( 0 );
-#endif
- }
- else {
- tgsi_exec_machine_run( &machine );
- }
-
-#if 0
- for (i = 0; i < 4; i++) {
- fprintf(file, "VS result: %f %f %f %f\n",
- machine.Outputs[0].xyzw[0].f[i],
- machine.Outputs[0].xyzw[1].f[i],
- machine.Outputs[0].xyzw[2].f[i],
- machine.Outputs[0].xyzw[3].f[i]);
- }
- fflush( file );
-#endif
-
- /* store machine results */
- for (j = 0; j < count; j++) {
- unsigned slot;
- float x, y, z, w;
-
- /* Handle attr[0] (position) specially: */
- x = vOut[j]->clip[0] = machine.Outputs[0].xyzw[0].f[j];
- y = vOut[j]->clip[1] = machine.Outputs[0].xyzw[1].f[j];
- z = vOut[j]->clip[2] = machine.Outputs[0].xyzw[2].f[j];
- w = vOut[j]->clip[3] = machine.Outputs[0].xyzw[3].f[j];
-
- vOut[j]->clipmask = compute_clipmask(x, y, z, w) | draw->user_clipmask;
- vOut[j]->edgeflag = 1;
-
- /* divide by w */
- w = 1.0f / w;
- x *= w;
- y *= w;
- z *= w;
-
- /* Viewport mapping */
- vOut[j]->data[0][0] = x * scale[0] + trans[0];
- vOut[j]->data[0][1] = y * scale[1] + trans[1];
- vOut[j]->data[0][2] = z * scale[2] + trans[2];
- vOut[j]->data[0][3] = w;
-#if 0
- fprintf(file, "Vert %d: wincoord: %f %f %f %f\n", j,
- vOut[j]->data[0][0],
- vOut[j]->data[0][1],
- vOut[j]->data[0][2],
- vOut[j]->data[0][3]);
- fflush( file );
-#endif
-
- /* remaining attributes are packed into sequential post-transform
- * vertex attrib slots.
- */
- for (slot = 1; slot < draw->vertex_info.num_attribs; slot++) {
- vOut[j]->data[slot][0] = machine.Outputs[slot].xyzw[0].f[j];
- vOut[j]->data[slot][1] = machine.Outputs[slot].xyzw[1].f[j];
- vOut[j]->data[slot][2] = machine.Outputs[slot].xyzw[2].f[j];
- vOut[j]->data[slot][3] = machine.Outputs[slot].xyzw[3].f[j];
-#if 0
- fprintf(file, "output attrib slot %d: %f %f %f %f vert %p\n",
- slot,
- vOut[j]->data[slot][0],
- vOut[j]->data[slot][1],
- vOut[j]->data[slot][2],
- vOut[j]->data[slot][3], vOut[j]);
-#endif
- }
- } /* loop over vertices */
-}
-
-
-/**
- * Called by the draw module when the vertx cache needs to be flushed.
- * This involves running the vertex shader.
- */
-static void transform_vertices( struct draw_context *draw )
-{
- unsigned i, j;
-
- /* run vertex shader on vertex cache entries, four per invokation */
- for (i = 0; i < draw->vs.queue_nr; i += 4) {
- struct vertex_header *dests[4];
- unsigned elts[4];
- int n;
-
- for (j = 0; j < 4; j++) {
- elts[j] = draw->vs.queue[i + j].elt;
- dests[j] = draw->vs.queue[i + j].dest;
- }
-
- n = MIN2(4, draw->vs.queue_nr - i);
- assert(n > 0);
- assert(n <= 4);
-
- run_vertex_program(draw, elts, n, dests);
- }
-
- draw->vs.queue_nr = 0;
-}
-
-
void draw_flush( struct draw_context *draw )
{
struct draw_stage *first = draw->pipeline.first;
/* Make sure all vertices are available:
*/
- transform_vertices(draw);
+ draw_vertex_cache_validate(draw);
switch (draw->reduced_prim) {
case RP_TRI:
}
draw->pq.queue_nr = 0;
- draw->vcache.referenced = 0;
- draw->vcache.overflow = 0;
-}
-
-void draw_invalidate_vcache( struct draw_context *draw )
-{
- unsigned i;
-
- assert(draw->pq.queue_nr == 0);
- assert(draw->vs.queue_nr == 0);
- assert(draw->vcache.referenced == 0);
-
- for (i = 0; i < Elements( draw->vcache.idx ); i++)
- draw->vcache.idx[i] = ~0;
+ draw_vertex_cache_unreference( draw );
}
+
/* Return a pointer to a freshly queued primitive header. Ensure that
* there is room in the vertex cache for a maximum of "nr_verts" new
* vertices. Flush primitive and/or vertex queues if necessary to
unsigned nr_verts )
{
if (draw->pq.queue_nr + 1 >= PRIM_QUEUE_LENGTH ||
- draw->vcache.overflow + nr_verts >= VCACHE_OVERFLOW)
+ draw_vertex_cache_check_space( draw, nr_verts ))
+ {
draw_flush( draw );
-
- /* The vs queue is sized so that this can never happen:
- */
- assert(draw->vs.queue_nr + nr_verts < VS_QUEUE_LENGTH);
-
- return &draw->pq.queue[draw->pq.queue_nr++];
-}
-
-
-/* Check if vertex is in cache, otherwise add it. It won't go through
- * VS yet, not until there is a flush operation or the VS queue fills up.
- */
-static struct vertex_header *get_vertex( struct draw_context *draw,
- unsigned i )
-{
- unsigned slot = (i + (i>>5)) & 31;
-
- /* Cache miss?
- */
- if (draw->vcache.idx[slot] != i) {
-
- /* If slot is in use, use the overflow area:
- */
- if (draw->vcache.referenced & (1 << slot))
- slot = VCACHE_SIZE + draw->vcache.overflow++;
- else
- draw->vcache.referenced |= (1 << slot); /* slot now in use */
-
- draw->vcache.idx[slot] = i;
-
- /* Add to vertex shader queue:
- */
- draw->vs.queue[draw->vs.queue_nr].dest = draw->vcache.vertex[slot];
- draw->vs.queue[draw->vs.queue_nr].elt = i;
- draw->vs.queue_nr++;
-
- /* Need to set the vertex's edge flag here. If we're being called
- * by do_ef_triangle(), that function needs edge flag info!
- */
- draw->vcache.vertex[slot]->edgeflag = 1; /*XXX use user's edge flag! */
}
- return draw->vcache.vertex[slot];
-}
-
-
-static struct vertex_header *get_uint_elt_vertex( struct draw_context *draw,
- unsigned i )
-{
- const unsigned *elts = (const unsigned *) draw->mapped_elts;
- return get_vertex( draw, elts[i] );
-}
-
-
-static struct vertex_header *get_ushort_elt_vertex( struct draw_context *draw,
- unsigned i )
-{
- const ushort *elts = (const ushort *) draw->mapped_elts;
- return get_vertex( draw, elts[i] );
+ return &draw->pq.queue[draw->pq.queue_nr++];
}
-static struct vertex_header *get_ubyte_elt_vertex( struct draw_context *draw,
- unsigned i )
-{
- const ubyte *elts = (const ubyte *) draw->mapped_elts;
- return get_vertex( draw, elts[i] );
-}
static void do_point( struct draw_context *draw,
struct vertex_header *v0 = draw->get_vertex( draw, i0 );
struct vertex_header *v1 = draw->get_vertex( draw, i1 );
struct vertex_header *v2 = draw->get_vertex( draw, i2 );
-
+
prim->reset_line_stipple = reset_stipple;
prim->edgeflags = ef_mask & ((v0->edgeflag << 0) |
}
-/**
- * Tell the drawing context about the index/element buffer to use
- * (ala glDrawElements)
- * If no element buffer is to be used (i.e. glDrawArrays) then this
- * should be called with eltSize=0 and elements=NULL.
- *
- * \param draw the drawing context
- * \param eltSize size of each element (1, 2 or 4 bytes)
- * \param elements the element buffer ptr
- */
-void
-draw_set_mapped_element_buffer( struct draw_context *draw,
- unsigned eltSize, void *elements )
-{
- /* choose the get_vertex() function to use */
- switch (eltSize) {
- case 0:
- draw->get_vertex = get_vertex;
- break;
- case 1:
- draw->get_vertex = get_ubyte_elt_vertex;
- break;
- case 2:
- draw->get_vertex = get_ushort_elt_vertex;
- break;
- case 4:
- draw->get_vertex = get_uint_elt_vertex;
- break;
- default:
- assert(0);
- }
- draw->mapped_elts = elements;
- draw->eltSize = eltSize;
-}
-
-
/**
* Tell drawing context where to find mapped vertex buffers.
*/
+struct draw_context;
+
+extern int draw_vertex_cache_check_space( struct draw_context *draw,
+ unsigned nr_verts );
+
+extern void draw_vertex_cache_validate( struct draw_context *draw );
+extern void draw_vertex_cache_invalidate( struct draw_context *draw );
+extern void draw_vertex_cache_unreference( struct draw_context *draw );
+
+extern void draw_vertex_shader_queue_flush( struct draw_context *draw );
+
+struct tgsi_exec_machine;
+
+extern void draw_vertex_fetch( struct draw_context *draw,
+ struct tgsi_exec_machine *machine,
+ const unsigned *elts,
+ unsigned count );
+
+
#endif /* DRAW_VERTEX_H */
--- /dev/null
+/**************************************************************************
+ *
+ * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * 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 TUNGSTEN GRAPHICS 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.
+ *
+ **************************************************************************/
+
+ /*
+ * Authors:
+ * Keith Whitwell <keith@tungstengraphics.com>
+ */
+
+#include "pipe/p_util.h"
+#include "draw_private.h"
+#include "draw_context.h"
+#include "draw_vertex.h"
+
+
+void draw_vertex_cache_invalidate( struct draw_context *draw )
+{
+ unsigned i;
+
+ assert(draw->pq.queue_nr == 0);
+ assert(draw->vs.queue_nr == 0);
+ assert(draw->vcache.referenced == 0);
+
+ for (i = 0; i < Elements( draw->vcache.idx ); i++)
+ draw->vcache.idx[i] = ~0;
+}
+
+
+/* Check if vertex is in cache, otherwise add it. It won't go through
+ * VS yet, not until there is a flush operation or the VS queue fills up.
+ */
+static struct vertex_header *get_vertex( struct draw_context *draw,
+ unsigned i )
+{
+ unsigned slot = (i + (i>>5)) & 31;
+
+ /* Cache miss?
+ */
+ if (draw->vcache.idx[slot] != i) {
+
+ /* If slot is in use, use the overflow area:
+ */
+ if (draw->vcache.referenced & (1 << slot))
+ slot = VCACHE_SIZE + draw->vcache.overflow++;
+ else
+ draw->vcache.referenced |= (1 << slot); /* slot now in use */
+
+ draw->vcache.idx[slot] = i;
+
+ /* Add to vertex shader queue:
+ */
+ draw->vs.queue[draw->vs.queue_nr].dest = draw->vcache.vertex[slot];
+ draw->vs.queue[draw->vs.queue_nr].elt = i;
+ draw->vs.queue_nr++;
+
+ /* Need to set the vertex's edge flag here. If we're being called
+ * by do_ef_triangle(), that function needs edge flag info!
+ */
+ draw->vcache.vertex[slot]->edgeflag = 1; /*XXX use user's edge flag! */
+ }
+
+ return draw->vcache.vertex[slot];
+}
+
+
+static struct vertex_header *get_uint_elt_vertex( struct draw_context *draw,
+ unsigned i )
+{
+ const unsigned *elts = (const unsigned *) draw->mapped_elts;
+ return get_vertex( draw, elts[i] );
+}
+
+
+static struct vertex_header *get_ushort_elt_vertex( struct draw_context *draw,
+ unsigned i )
+{
+ const ushort *elts = (const ushort *) draw->mapped_elts;
+ return get_vertex( draw, elts[i] );
+}
+
+
+static struct vertex_header *get_ubyte_elt_vertex( struct draw_context *draw,
+ unsigned i )
+{
+ const ubyte *elts = (const ubyte *) draw->mapped_elts;
+ return get_vertex( draw, elts[i] );
+}
+
+
+
+void draw_vertex_cache_validate( struct draw_context *draw )
+{
+ draw_vertex_shader_queue_flush( draw );
+}
+
+void draw_vertex_cache_unreference( struct draw_context *draw )
+{
+ draw->vcache.referenced = 0;
+ draw->vcache.overflow = 0;
+}
+
+
+int draw_vertex_cache_check_space( struct draw_context *draw,
+ unsigned nr_verts )
+{
+ if (draw->vcache.overflow + nr_verts < VCACHE_OVERFLOW) {
+ /* The vs queue is sized so that this can never happen:
+ */
+ assert(draw->vs.queue_nr + nr_verts < VS_QUEUE_LENGTH);
+ return TRUE;
+ }
+ else
+ return FALSE;
+}
+
+
+
+/**
+ * Tell the drawing context about the index/element buffer to use
+ * (ala glDrawElements)
+ * If no element buffer is to be used (i.e. glDrawArrays) then this
+ * should be called with eltSize=0 and elements=NULL.
+ *
+ * \param draw the drawing context
+ * \param eltSize size of each element (1, 2 or 4 bytes)
+ * \param elements the element buffer ptr
+ */
+void
+draw_set_mapped_element_buffer( struct draw_context *draw,
+ unsigned eltSize, void *elements )
+{
+ /* choose the get_vertex() function to use */
+ switch (eltSize) {
+ case 0:
+ draw->get_vertex = get_vertex;
+ break;
+ case 1:
+ draw->get_vertex = get_ubyte_elt_vertex;
+ break;
+ case 2:
+ draw->get_vertex = get_ushort_elt_vertex;
+ break;
+ case 4:
+ draw->get_vertex = get_uint_elt_vertex;
+ break;
+ default:
+ assert(0);
+ }
+ draw->mapped_elts = elements;
+ draw->eltSize = eltSize;
+}
+
--- /dev/null
+/**************************************************************************
+ *
+ * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * 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 TUNGSTEN GRAPHICS 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.
+ *
+ **************************************************************************/
+
+ /*
+ * Authors:
+ * Keith Whitwell <keith@tungstengraphics.com>
+ */
+
+#include "pipe/p_util.h"
+#include "draw_private.h"
+#include "draw_context.h"
+#include "draw_vertex.h"
+
+#include "pipe/tgsi/exec/tgsi_core.h"
+
+/**
+ * Fetch a float[4] vertex attribute from memory, doing format/type
+ * conversion as needed.
+ * XXX this might be a temporary thing.
+ */
+static void
+fetch_attrib4(const void *ptr, unsigned format, float attrib[4])
+{
+ /* defaults */
+ attrib[1] = 0.0;
+ attrib[2] = 0.0;
+ attrib[3] = 1.0;
+ switch (format) {
+ case PIPE_FORMAT_R32G32B32A32_FLOAT:
+ attrib[3] = ((float *) ptr)[3];
+ /* fall-through */
+ case PIPE_FORMAT_R32G32B32_FLOAT:
+ attrib[2] = ((float *) ptr)[2];
+ /* fall-through */
+ case PIPE_FORMAT_R32G32_FLOAT:
+ attrib[1] = ((float *) ptr)[1];
+ /* fall-through */
+ case PIPE_FORMAT_R32_FLOAT:
+ attrib[0] = ((float *) ptr)[0];
+ break;
+ default:
+ assert(0);
+ }
+}
+
+void draw_vertex_fetch( struct draw_context *draw,
+ struct tgsi_exec_machine *machine,
+ const unsigned *elts,
+ unsigned count )
+{
+ unsigned j;
+
+
+ /* load machine inputs */
+ for (j = 0; j < count; j++) {
+ unsigned attr;
+ for (attr = 0; attr < 16; attr++) {
+ if (draw->vertex_shader.inputs_read & (1 << attr)) {
+ unsigned buf = draw->vertex_element[attr].vertex_buffer_index;
+ const void *src
+ = (const void *) ((const ubyte *) draw->mapped_vbuffer[buf]
+ + draw->vertex_buffer[buf].buffer_offset
+ + draw->vertex_element[attr].src_offset
+ + elts[j] * draw->vertex_buffer[buf].pitch);
+ float p[4];
+
+ fetch_attrib4(src, draw->vertex_element[attr].src_format, p);
+
+ machine->Inputs[attr].xyzw[0].f[j] = p[0]; /*X*/
+ machine->Inputs[attr].xyzw[1].f[j] = p[1]; /*Y*/
+ machine->Inputs[attr].xyzw[2].f[j] = p[2]; /*Z*/
+ machine->Inputs[attr].xyzw[3].f[j] = p[3]; /*W*/
+ }
+ }
+ }
+}
+
--- /dev/null
+/**************************************************************************
+ *
+ * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * 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 TUNGSTEN GRAPHICS 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.
+ *
+ **************************************************************************/
+
+ /*
+ * Authors:
+ * Keith Whitwell <keith@tungstengraphics.com>
+ * Brian Paul
+ */
+
+#include "pipe/p_util.h"
+#include "draw_private.h"
+#include "draw_context.h"
+#include "draw_vertex.h"
+
+#include "pipe/tgsi/exec/tgsi_core.h"
+
+static INLINE unsigned
+compute_clipmask(float cx, float cy, float cz, float cw)
+{
+ unsigned mask = 0;
+
+ if (-cx + cw < 0) mask |= CLIP_RIGHT_BIT;
+ if ( cx + cw < 0) mask |= CLIP_LEFT_BIT;
+ if (-cy + cw < 0) mask |= CLIP_TOP_BIT;
+ if ( cy + cw < 0) mask |= CLIP_BOTTOM_BIT;
+ if (-cz + cw < 0) mask |= CLIP_FAR_BIT;
+ if ( cz + cw < 0) mask |= CLIP_NEAR_BIT;
+
+ return mask;
+}
+
+
+
+
+#if !defined(XSTDCALL)
+#if defined(WIN32)
+#define XSTDCALL __stdcall
+#else
+#define XSTDCALL
+#endif
+#endif
+
+#if defined(USE_X86_ASM) || defined(SLANG_X86)
+typedef void (XSTDCALL *sse2_function)(
+ const struct tgsi_exec_vector *input,
+ struct tgsi_exec_vector *output,
+ float (*constant)[4],
+ struct tgsi_exec_vector *temporary );
+#endif
+
+/**
+ * Transform vertices with the current vertex program/shader
+ * Up to four vertices can be shaded at a time.
+ * \param vbuffer the input vertex data
+ * \param elts indexes of four input vertices
+ * \param count number of vertices to shade [1..4]
+ * \param vOut array of pointers to four output vertices
+ */
+static void
+run_vertex_program(struct draw_context *draw,
+ unsigned elts[4], unsigned count,
+ struct vertex_header *vOut[])
+{
+ struct tgsi_exec_machine machine;
+ unsigned int j;
+
+ ALIGN16_DECL(struct tgsi_exec_vector, inputs, PIPE_ATTRIB_MAX);
+ ALIGN16_DECL(struct tgsi_exec_vector, outputs, PIPE_ATTRIB_MAX);
+ const float *scale = draw->viewport.scale;
+ const float *trans = draw->viewport.translate;
+
+ assert(count <= 4);
+ assert(draw->vertex_shader.outputs_written & (1 << TGSI_ATTRIB_POS));
+
+#ifdef DEBUG
+ memset( &machine, 0, sizeof( machine ) );
+#endif
+
+ /* init machine state */
+ tgsi_exec_machine_init(&machine,
+ draw->vertex_shader.tokens,
+ PIPE_MAX_SAMPLERS,
+ NULL /*samplers*/ );
+
+ /* Consts does not require 16 byte alignment. */
+ machine.Consts = (float (*)[4]) draw->mapped_constants;
+
+ machine.Inputs = ALIGN16_ASSIGN(inputs);
+ machine.Outputs = ALIGN16_ASSIGN(outputs);
+
+ draw_vertex_fetch( draw, &machine, elts, count );
+
+
+ /* run shader */
+ if( draw->vertex_shader.executable != NULL ) {
+#if defined(USE_X86_ASM) || defined(SLANG_X86)
+ sse2_function func = (sse2_function) draw->vertex_shader.executable;
+ func(
+ machine.Inputs,
+ machine.Outputs,
+ machine.Consts,
+ machine.Temps );
+#else
+ assert( 0 );
+#endif
+ }
+ else {
+ tgsi_exec_machine_run( &machine );
+ }
+
+
+ /* store machine results */
+ for (j = 0; j < count; j++) {
+ unsigned slot;
+ float x, y, z, w;
+
+ /* Handle attr[0] (position) specially: */
+ x = vOut[j]->clip[0] = machine.Outputs[0].xyzw[0].f[j];
+ y = vOut[j]->clip[1] = machine.Outputs[0].xyzw[1].f[j];
+ z = vOut[j]->clip[2] = machine.Outputs[0].xyzw[2].f[j];
+ w = vOut[j]->clip[3] = machine.Outputs[0].xyzw[3].f[j];
+
+ vOut[j]->clipmask = compute_clipmask(x, y, z, w) | draw->user_clipmask;
+ vOut[j]->edgeflag = 1;
+
+ /* divide by w */
+ w = 1.0f / w;
+ x *= w;
+ y *= w;
+ z *= w;
+
+ /* Viewport mapping */
+ vOut[j]->data[0][0] = x * scale[0] + trans[0];
+ vOut[j]->data[0][1] = y * scale[1] + trans[1];
+ vOut[j]->data[0][2] = z * scale[2] + trans[2];
+ vOut[j]->data[0][3] = w;
+
+ /* remaining attributes are packed into sequential post-transform
+ * vertex attrib slots.
+ */
+ for (slot = 1; slot < draw->vertex_info.num_attribs; slot++) {
+ vOut[j]->data[slot][0] = machine.Outputs[slot].xyzw[0].f[j];
+ vOut[j]->data[slot][1] = machine.Outputs[slot].xyzw[1].f[j];
+ vOut[j]->data[slot][2] = machine.Outputs[slot].xyzw[2].f[j];
+ vOut[j]->data[slot][3] = machine.Outputs[slot].xyzw[3].f[j];
+ }
+ } /* loop over vertices */
+}
+
+
+/**
+ * Called by the draw module when the vertx cache needs to be flushed.
+ * This involves running the vertex shader.
+ */
+void draw_vertex_shader_queue_flush( struct draw_context *draw )
+{
+ unsigned i, j;
+
+ /* run vertex shader on vertex cache entries, four per invokation */
+ for (i = 0; i < draw->vs.queue_nr; i += 4) {
+ struct vertex_header *dests[4];
+ unsigned elts[4];
+ int n;
+
+ for (j = 0; j < 4; j++) {
+ elts[j] = draw->vs.queue[i + j].elt;
+ dests[j] = draw->vs.queue[i + j].dest;
+ }
+
+ n = MIN2(4, draw->vs.queue_nr - i);
+ assert(n > 0);
+ assert(n <= 4);
+
+ run_vertex_program(draw, elts, n, dests);
+ }
+
+ draw->vs.queue_nr = 0;
+}
+
pipe/draw/draw_offset.c \
pipe/draw/draw_prim.c \
pipe/draw/draw_twoside.c \
+ pipe/draw/draw_vertex_cache.c \
+ pipe/draw/draw_vertex_fetch.c \
+ pipe/draw/draw_vertex_shader.c \
pipe/draw/draw_unfilled.c
TGSIEXEC_SOURCES = \
projects / mesa.git / commitdiff