/**************************************************************************
*
- * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * Copyright 2007 VMware, Inc.
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* 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
+ * 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.
/*
* Authors:
- * Keith Whitwell <keith@tungstengraphics.com>
+ * Keith Whitwell <keithw@vmware.com>
*/
#include "draw/draw_context.h"
#include "draw/draw_gs.h"
+#include "draw/draw_tess.h"
#include "draw/draw_private.h"
#include "draw/draw_pt.h"
+#include "draw/draw_vbuf.h"
#include "draw/draw_vs.h"
#include "tgsi/tgsi_dump.h"
#include "util/u_math.h"
#include "util/u_prim.h"
-#include "util/u_format.h"
+#include "util/format/u_format.h"
#include "util/u_draw.h"
* - backend -- the vbuf_render provided by the driver.
*/
static boolean
-draw_pt_arrays(struct draw_context *draw,
+draw_pt_arrays(struct draw_context *draw,
unsigned prim,
unsigned start,
unsigned count)
*/
{
unsigned first, incr;
- draw_pt_split_prim(prim, &first, &incr);
+
+ if (prim == PIPE_PRIM_PATCHES) {
+ first = draw->pt.vertices_per_patch;
+ incr = draw->pt.vertices_per_patch;
+ } else
+ draw_pt_split_prim(prim, &first, &incr);
count = draw_pt_trim_count(count, first, incr);
if (count < first)
return TRUE;
}
if (!draw->force_passthrough) {
- unsigned gs_out_prim = (draw->gs.geometry_shader ?
- draw->gs.geometry_shader->output_primitive :
- prim);
+ unsigned out_prim = prim;
+
+ if (draw->gs.geometry_shader)
+ out_prim = draw->gs.geometry_shader->output_primitive;
+ else if (draw->tes.tess_eval_shader)
+ out_prim = get_tes_output_prim(draw->tes.tess_eval_shader);
if (!draw->render) {
opt |= PT_PIPELINE;
if (draw_need_pipeline(draw,
draw->rasterizer,
- gs_out_prim)) {
+ out_prim)) {
opt |= PT_PIPELINE;
}
middle = draw->pt.middle.general;
}
- frontend = draw->pt.front.vsplit;
+ frontend = draw->pt.frontend;
+
+ if (frontend) {
+ if (draw->pt.prim != prim || draw->pt.opt != opt) {
+ /* In certain conditions switching primitives requires us to flush
+ * and validate the different stages. One example is when smooth
+ * lines are active but first drawn with triangles and then with
+ * lines.
+ */
+ draw_do_flush( draw, DRAW_FLUSH_STATE_CHANGE );
+ frontend = NULL;
+ } else if (draw->pt.eltSize != draw->pt.user.eltSize) {
+ /* Flush draw state if eltSize changed.
+ * This could be improved so only the frontend is flushed since it
+ * converts all indices to ushorts and the fetch part of the middle
+ * always prepares both linear and indexed.
+ */
+ frontend->flush( frontend, DRAW_FLUSH_STATE_CHANGE );
+ frontend = NULL;
+ }
+ }
- frontend->prepare( frontend, prim, middle, opt );
+ if (!frontend) {
+ frontend = draw->pt.front.vsplit;
+
+ frontend->prepare( frontend, prim, middle, opt );
+
+ draw->pt.frontend = frontend;
+ draw->pt.eltSize = draw->pt.user.eltSize;
+ draw->pt.prim = prim;
+ draw->pt.opt = opt;
+ }
- frontend->run(frontend, start, count);
+ if (draw->pt.rebind_parameters) {
+ /* update constants, viewport dims, clip planes, etc */
+ middle->bind_parameters(middle);
+ draw->pt.rebind_parameters = FALSE;
+ }
- frontend->finish( frontend );
+ frontend->run( frontend, start, count );
return TRUE;
}
+void draw_pt_flush( struct draw_context *draw, unsigned flags )
+{
+ assert(flags);
+
+ if (draw->pt.frontend) {
+ draw->pt.frontend->flush( draw->pt.frontend, flags );
+
+ /* don't prepare if we only are flushing the backend */
+ if (flags & DRAW_FLUSH_STATE_CHANGE)
+ draw->pt.frontend = NULL;
+ }
+
+ if (flags & DRAW_FLUSH_PARAMETER_CHANGE) {
+ draw->pt.rebind_parameters = TRUE;
+ }
+}
+
+
boolean draw_pt_init( struct draw_context *draw )
{
if (!draw->pt.middle.general)
return FALSE;
-#if HAVE_LLVM
+#ifdef LLVM_AVAILABLE
if (draw->llvm)
draw->pt.middle.llvm = draw_pt_fetch_pipeline_or_emit_llvm( draw );
#endif
uint j;
if (draw->pt.user.eltSize) {
- const char *elts;
-
/* indexed arrays */
- elts = (const char *) draw->pt.user.elts;
- elts += draw->pt.index_buffer.offset;
switch (draw->pt.user.eltSize) {
case 1:
{
- const ubyte *elem = (const ubyte *) elts;
+ const ubyte *elem = (const ubyte *) draw->pt.user.elts;
ii = elem[start + i];
}
break;
case 2:
{
- const ushort *elem = (const ushort *) elts;
+ const ushort *elem = (const ushort *) draw->pt.user.elts;
ii = elem[start + i];
}
break;
case 4:
{
- const uint *elem = (const uint *) elts;
+ const uint *elem = (const uint *) draw->pt.user.elts;
ii = elem[start + i];
}
break;
for (j = 0; j < draw->pt.nr_vertex_elements; j++) {
uint buf = draw->pt.vertex_element[j].vertex_buffer_index;
- ubyte *ptr = (ubyte *) draw->pt.user.vbuffer[buf];
+ ubyte *ptr = (ubyte *) draw->pt.user.vbuffer[buf].map;
if (draw->pt.vertex_element[j].instance_divisor) {
ii = draw->instance_id / draw->pt.vertex_element[j].instance_divisor;
(void *) u);
}
break;
+ case PIPE_FORMAT_A8R8G8B8_UNORM:
+ {
+ ubyte *u = (ubyte *) ptr;
+ debug_printf("ARGB %d %d %d %d @ %p\n", u[0], u[1], u[2], u[3],
+ (void *) u);
+ }
+ break;
default:
debug_printf("other format %s (fix me)\n",
util_format_name(draw->pt.vertex_element[j].src_format));
/** Helper code for below */
#define PRIM_RESTART_LOOP(elements) \
do { \
- for (i = start; i < end; i++) { \
- if (elements[i] == info->restart_index) { \
+ for (j = 0; j < count; j++) { \
+ i = draw_overflow_uadd(start, j, MAX_LOOP_IDX); \
+ if (i < elt_max && elements[i] == info->restart_index) { \
if (cur_count > 0) { \
/* draw elts up to prev pos */ \
draw_pt_arrays(draw, prim, cur_start, cur_count); \
const unsigned prim = info->mode;
const unsigned start = info->start;
const unsigned count = info->count;
- const unsigned end = start + count;
- unsigned i, cur_start, cur_count;
+ const unsigned elt_max = draw->pt.user.eltMax;
+ unsigned i, j, cur_start, cur_count;
+ /* The largest index within a loop using the i variable as the index.
+ * Used for overflow detection */
+ const unsigned MAX_LOOP_IDX = 0xffffffff;
assert(info->primitive_restart);
- if (draw->pt.user.elts) {
+ if (draw->pt.user.eltSize) {
/* indexed prims (draw_elements) */
cur_start = start;
cur_count = 0;
}
else {
/* Non-indexed prims (draw_arrays).
- * Primitive restart should have been handled in the state tracker.
+ * Primitive restart should have been handled in gallium frontends.
*/
draw_pt_arrays(draw, prim, start, count);
}
}
-
-/**
- * Non-instanced drawing.
- * \sa draw_arrays_instanced
- */
-void
-draw_arrays(struct draw_context *draw, unsigned prim,
- unsigned start, unsigned count)
-{
- draw_arrays_instanced(draw, prim, start, count, 0, 1);
-}
-
-
/**
- * Instanced drawing.
- * \sa draw_vbo
+ * Resolve true values within pipe_draw_info.
+ * If we're rendering from transform feedback/stream output
+ * buffers both the count and max_index need to be computed
+ * from the attached stream output target.
*/
-void
-draw_arrays_instanced(struct draw_context *draw,
- unsigned mode,
- unsigned start,
- unsigned count,
- unsigned startInstance,
- unsigned instanceCount)
+static void
+resolve_draw_info(const struct pipe_draw_info *raw_info,
+ struct pipe_draw_info *info,
+ struct pipe_vertex_buffer *vertex_buffer)
{
- struct pipe_draw_info info;
-
- util_draw_init_info(&info);
-
- info.mode = mode;
- info.start = start;
- info.count = count;
- info.start_instance = startInstance;
- info.instance_count = instanceCount;
-
- info.indexed = (draw->pt.user.elts != NULL);
- if (!info.indexed) {
- info.min_index = start;
- info.max_index = start + count - 1;
+ memcpy(info, raw_info, sizeof(struct pipe_draw_info));
+
+ if (raw_info->count_from_stream_output) {
+ struct draw_so_target *target =
+ (struct draw_so_target *)info->count_from_stream_output;
+ assert(vertex_buffer != NULL);
+ info->count = vertex_buffer->stride == 0 ? 0 :
+ target->internal_offset / vertex_buffer->stride;
+
+ /* Stream output draw can not be indexed */
+ debug_assert(!info->index_size);
+ info->max_index = info->count - 1;
}
-
- draw_vbo(draw, &info);
}
-
/**
* Draw vertex arrays.
* This is the main entrypoint into the drawing module. If drawing an indexed
- * primitive, the draw_set_index_buffer() and draw_set_mapped_index_buffer()
- * functions should have already been called to specify the element/index
- * buffer information.
+ * primitive, the draw_set_indexes() function should have already been called
+ * to specify the element/index buffer information.
*/
void
draw_vbo(struct draw_context *draw,
const struct pipe_draw_info *info)
{
- unsigned reduced_prim = u_reduced_prim(info->mode);
unsigned instance;
+ unsigned index_limit;
+ unsigned count;
+ unsigned fpstate = util_fpstate_get();
+ struct pipe_draw_info resolved_info;
+
+ if (info->instance_count == 0)
+ return;
+
+ /* Make sure that denorms are treated like zeros. This is
+ * the behavior required by D3D10. OpenGL doesn't care.
+ */
+ util_fpstate_set_denorms_to_zero(fpstate);
+
+ resolve_draw_info(info, &resolved_info, &(draw->pt.vertex_buffer[0]));
+ info = &resolved_info;
- assert(info->instance_count > 0);
- if (info->indexed)
+ if (info->index_size)
assert(draw->pt.user.elts);
- draw->pt.user.eltSize =
- (info->indexed) ? draw->pt.index_buffer.index_size : 0;
+ count = info->count;
draw->pt.user.eltBias = info->index_bias;
draw->pt.user.min_index = info->min_index;
draw->pt.user.max_index = info->max_index;
+ draw->pt.user.eltSize = info->index_size ? draw->pt.user.eltSizeIB : 0;
+ draw->pt.user.drawid = info->drawid;
- if (reduced_prim != draw->reduced_prim) {
- draw_do_flush(draw, DRAW_FLUSH_STATE_CHANGE);
- draw->reduced_prim = reduced_prim;
- }
+ draw->pt.vertices_per_patch = info->vertices_per_patch;
if (0)
debug_printf("draw_vbo(mode=%u start=%u count=%u):\n",
- info->mode, info->start, info->count);
+ info->mode, info->start, count);
if (0)
tgsi_dump(draw->vs.vertex_shader->state.tokens, 0);
}
debug_printf("Buffers:\n");
for (i = 0; i < draw->pt.nr_vertex_buffers; i++) {
- debug_printf(" %u: stride=%u maxindex=%u offset=%u ptr=%p\n",
+ debug_printf(" %u: stride=%u offset=%u size=%d ptr=%p\n",
i,
draw->pt.vertex_buffer[i].stride,
- draw->pt.vertex_buffer[i].max_index,
draw->pt.vertex_buffer[i].buffer_offset,
- draw->pt.user.vbuffer[i]);
+ (int) draw->pt.user.vbuffer[i].size,
+ draw->pt.user.vbuffer[i].map);
}
}
if (0)
- draw_print_arrays(draw, info->mode, info->start, MIN2(info->count, 20));
+ draw_print_arrays(draw, info->mode, info->start, MIN2(count, 20));
+
+ index_limit = util_draw_max_index(draw->pt.vertex_buffer,
+ draw->pt.vertex_element,
+ draw->pt.nr_vertex_elements,
+ info);
+#ifdef LLVM_AVAILABLE
+ if (!draw->llvm)
+#endif
+ {
+ if (index_limit == 0) {
+ /* one of the buffers is too small to do any valid drawing */
+ debug_warning("draw: VBO too small to draw anything\n");
+ util_fpstate_set(fpstate);
+ return;
+ }
+ }
+
+ /* If we're collecting stats then make sure we start from scratch */
+ if (draw->collect_statistics) {
+ memset(&draw->statistics, 0, sizeof(draw->statistics));
+ }
+
+ draw->pt.max_index = index_limit - 1;
+ draw->start_index = info->start;
+
+ /*
+ * TODO: We could use draw->pt.max_index to further narrow
+ * the min_index/max_index hints given by gallium frontends.
+ */
for (instance = 0; instance < info->instance_count; instance++) {
- draw->instance_id = instance + info->start_instance;
+ unsigned instance_idx = instance + info->start_instance;
+ draw->start_instance = info->start_instance;
+ draw->instance_id = instance;
+ /* check for overflow */
+ if (instance_idx < instance ||
+ instance_idx < draw->start_instance) {
+ /* if we overflown just set the instance id to the max */
+ draw->instance_id = 0xffffffff;
+ }
+
+ draw_new_instance(draw);
if (info->primitive_restart) {
draw_pt_arrays_restart(draw, info);
}
else {
- draw_pt_arrays(draw, info->mode, info->start, info->count);
+ draw_pt_arrays(draw, info->mode, info->start, count);
}
}
+
+ /* If requested emit the pipeline statistics for this run */
+ if (draw->collect_statistics) {
+ draw->render->pipeline_statistics(draw->render, &draw->statistics);
+ }
+ util_fpstate_set(fpstate);
}
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