/*
* Copyright 2009 Corbin Simpson <MostAwesomeDude@gmail.com>
+ * Copyright 2010 Marek Olšák <maraeo@gmail.com>
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
#include "r300_screen_buffer.h"
#include "r300_emit.h"
#include "r300_reg.h"
-#include "r300_render.h"
#include "r300_state_derived.h"
+#include <limits.h>
+
static uint32_t r300_translate_primitive(unsigned prim)
{
switch (prim) {
return color_control;
}
-static void r500_emit_index_offset(struct r300_context *r300, int index_bias)
+static boolean index_bias_supported(struct r300_context *r300)
+{
+ return r300->screen->caps.is_r500 &&
+ r300->rws->get_value(r300->rws, R300_VID_DRM_2_3_0);
+}
+
+static void r500_emit_index_bias(struct r300_context *r300, int index_bias)
{
CS_LOCALS(r300);
- if (r300->screen->caps.is_r500 &&
- r300->rws->get_value(r300->rws, R300_VID_DRM_2_3_0)) {
- BEGIN_CS(2);
- OUT_CS_REG(R500_VAP_INDEX_OFFSET,
- (index_bias & 0xFFFFFF) | (index_bias < 0 ? 1<<24 : 0));
- END_CS;
- } else {
- if (index_bias) {
- fprintf(stderr, "r300: Non-zero index bias is unsupported "
- "on this hardware.\n");
- assert(0);
+ BEGIN_CS(2);
+ OUT_CS_REG(R500_VAP_INDEX_OFFSET,
+ (index_bias & 0xFFFFFF) | (index_bias < 0 ? 1<<24 : 0));
+ END_CS;
+}
+
+/* This function splits the index bias value into two parts:
+ * - buffer_offset: the value that can be safely added to buffer offsets
+ * in r300_emit_aos (it must yield a positive offset when added to
+ * a vertex buffer offset)
+ * - index_offset: the value that must be manually subtracted from indices
+ * in an index buffer to achieve negative offsets. */
+static void r300_split_index_bias(struct r300_context *r300, int index_bias,
+ int *buffer_offset, int *index_offset)
+{
+ struct pipe_vertex_buffer *vb, *vbufs = r300->vertex_buffer;
+ struct pipe_vertex_element *velem = r300->velems->velem;
+ unsigned i, size;
+ int max_neg_bias;
+
+ if (index_bias < 0) {
+ /* See how large index bias we may subtract. We must be careful
+ * here because negative buffer offsets are not allowed
+ * by the DRM API. */
+ max_neg_bias = INT_MAX;
+ for (i = 0; i < r300->velems->count; i++) {
+ vb = &vbufs[velem[i].vertex_buffer_index];
+ size = (vb->buffer_offset + velem[i].src_offset) / vb->stride;
+ max_neg_bias = MIN2(max_neg_bias, size);
}
+
+ /* Now set the minimum allowed value. */
+ *buffer_offset = MAX2(-max_neg_bias, index_bias);
+ } else {
+ /* A positive index bias is OK. */
+ *buffer_offset = index_bias;
}
+
+ *index_offset = index_bias - *buffer_offset;
}
enum r300_prepare_flags {
- PREP_FIRST_DRAW = (1 << 0),
- PREP_VALIDATE_VBOS = (1 << 1),
- PREP_EMIT_AOS = (1 << 2),
- PREP_INDEXED = (1 << 3)
+ PREP_FIRST_DRAW = (1 << 0), /* call emit_dirty_state and friends? */
+ PREP_VALIDATE_VBOS = (1 << 1), /* validate VBOs? */
+ PREP_EMIT_AOS = (1 << 2), /* call emit_aos? */
+ PREP_EMIT_AOS_SWTCL = (1 << 3), /* call emit_aos_swtcl? */
+ PREP_INDEXED = (1 << 4) /* is this draw_elements? */
};
-/* Check if the requested number of dwords is available in the CS and
+/**
+ * Check if the requested number of dwords is available in the CS and
* if not, flush. Then validate buffers and emit dirty state.
- * Return TRUE if flush occured. */
+ * \param r300 The context.
+ * \param flags See r300_prepare_flags.
+ * \param index_buffer The index buffer to validate. The parameter may be NULL.
+ * \param cs_dwords The number of dwords to reserve in CS.
+ * \param aos_offset The offset passed to emit_aos.
+ * \param index_bias The index bias to emit.
+ * \param end_cs_dwords The number of free dwords which must be available
+ * at the end of CS after drawing in case the CS space
+ * management is performed by a draw_* function manually.
+ * The parameter may be NULL.
+ */
static void r300_prepare_for_rendering(struct r300_context *r300,
enum r300_prepare_flags flags,
struct pipe_resource *index_buffer,
unsigned cs_dwords,
- unsigned aos_offset,
- int index_bias)
+ int aos_offset,
+ int index_bias,
+ unsigned *end_cs_dwords)
{
- boolean flushed = FALSE;
- boolean first_draw = flags & PREP_FIRST_DRAW;
- boolean emit_aos = flags & PREP_EMIT_AOS;
-
- /* Stencil ref fallback. */
- if (r300->stencil_ref_bf_fallback) {
- cs_dwords = cs_dwords * 2 + 10;
- }
+ unsigned end_dwords = 0;
+ boolean flushed = FALSE;
+ boolean first_draw = flags & PREP_FIRST_DRAW;
+ boolean emit_aos = flags & PREP_EMIT_AOS;
+ boolean emit_aos_swtcl = flags & PREP_EMIT_AOS_SWTCL;
+ boolean indexed = flags & PREP_INDEXED;
+ boolean hw_index_bias = index_bias_supported(r300);
/* Add dirty state, index offset, and AOS. */
if (first_draw) {
cs_dwords += r300_get_num_dirty_dwords(r300);
- if (r300->screen->caps.is_r500)
+ if (hw_index_bias)
cs_dwords += 2; /* emit_index_offset */
if (emit_aos)
cs_dwords += 55; /* emit_aos */
+
+ if (emit_aos_swtcl)
+ cs_dwords += 7; /* emit_aos_swtcl */
}
/* Emitted in flush. */
- cs_dwords += 26; /* emit_query_end */
+ end_dwords += 26; /* emit_query_end */
+
+ cs_dwords += end_dwords;
/* Reserve requested CS space. */
- if (!r300->rws->check_cs(r300->rws, cs_dwords)) {
+ if (!r300_check_cs(r300, cs_dwords)) {
r300->context.flush(&r300->context, 0, NULL);
flushed = TRUE;
}
if (first_draw || flushed) {
r300_emit_buffer_validate(r300, flags & PREP_VALIDATE_VBOS, index_buffer);
r300_emit_dirty_state(r300);
- r500_emit_index_offset(r300, index_bias);
+ if (hw_index_bias) {
+ if (r300->screen->caps.has_tcl)
+ r500_emit_index_bias(r300, index_bias);
+ else
+ r500_emit_index_bias(r300, 0);
+ }
+
if (emit_aos)
- r300_emit_aos(r300, aos_offset, flags & PREP_INDEXED);
+ r300_emit_aos(r300, aos_offset, indexed);
+
+ if (emit_aos_swtcl)
+ r300_emit_aos_swtcl(r300, indexed);
}
+
+ if (end_cs_dwords)
+ *end_cs_dwords = end_dwords;
}
static boolean immd_is_good_idea(struct r300_context *r300,
* after resolving fallback issues (e.g. stencil ref two-sided). *
****************************************************************************/
-void r500_emit_draw_arrays_immediate(struct r300_context *r300,
- unsigned mode,
- unsigned start,
- unsigned count)
+static void r300_emit_draw_arrays_immediate(struct r300_context *r300,
+ unsigned mode,
+ unsigned start,
+ unsigned count)
{
struct pipe_vertex_element* velem;
struct pipe_vertex_buffer* vbuf;
dwords = 9 + count * vertex_size;
- r300_prepare_for_rendering(r300, PREP_FIRST_DRAW, NULL, dwords, 0, 0);
+ r300_prepare_for_rendering(r300, PREP_FIRST_DRAW, NULL, dwords, 0, 0, NULL);
BEGIN_CS(dwords);
OUT_CS_REG(R300_GA_COLOR_CONTROL,
}
}
-void r500_emit_draw_arrays(struct r300_context *r300,
- unsigned mode,
- unsigned count)
+static void r300_emit_draw_arrays(struct r300_context *r300,
+ unsigned mode,
+ unsigned count)
{
boolean alt_num_verts = count > 65535;
CS_LOCALS(r300);
END_CS;
}
-void r500_emit_draw_elements(struct r300_context *r300,
- struct pipe_resource* indexBuffer,
- unsigned indexSize,
- unsigned minIndex,
- unsigned maxIndex,
- unsigned mode,
- unsigned start,
- unsigned count)
+static void r300_emit_draw_elements(struct r300_context *r300,
+ struct pipe_resource* indexBuffer,
+ unsigned indexSize,
+ unsigned minIndex,
+ unsigned maxIndex,
+ unsigned mode,
+ unsigned start,
+ unsigned count)
{
uint32_t count_dwords;
uint32_t offset_dwords = indexSize * start / sizeof(uint32_t);
(0 << R300_INDX_BUFFER_SKIP_SHIFT));
OUT_CS(offset_dwords << 2);
OUT_CS_BUF_RELOC(indexBuffer, count_dwords,
- RADEON_GEM_DOMAIN_GTT, 0, 0);
-
- END_CS;
-}
-
-/*****************************************************************************
- * The emission of draw packets for r300 which take care of the two-sided *
- * stencil ref fallback and call r500's functions. *
- ****************************************************************************/
-
-/* Set drawing for front faces. */
-static void r300_begin_stencil_ref_fallback(struct r300_context *r300)
-{
- struct r300_rs_state *rs = (struct r300_rs_state*)r300->rs_state.state;
- CS_LOCALS(r300);
-
- BEGIN_CS(2);
- OUT_CS_REG(R300_SU_CULL_MODE, rs->cull_mode | R300_CULL_BACK);
- END_CS;
-}
-
-/* Set drawing for back faces. */
-static void r300_switch_stencil_ref_side(struct r300_context *r300)
-{
- struct r300_rs_state *rs = (struct r300_rs_state*)r300->rs_state.state;
- struct r300_dsa_state *dsa = (struct r300_dsa_state*)r300->dsa_state.state;
- CS_LOCALS(r300);
-
- BEGIN_CS(4);
- OUT_CS_REG(R300_SU_CULL_MODE, rs->cull_mode | R300_CULL_FRONT);
- OUT_CS_REG(R300_ZB_STENCILREFMASK,
- dsa->stencil_ref_bf | r300->stencil_ref.ref_value[1]);
- END_CS;
-}
-
-/* Restore the original state. */
-static void r300_end_stencil_ref_fallback(struct r300_context *r300)
-{
- struct r300_rs_state *rs = (struct r300_rs_state*)r300->rs_state.state;
- struct r300_dsa_state *dsa = (struct r300_dsa_state*)r300->dsa_state.state;
- CS_LOCALS(r300);
+ r300_buffer(indexBuffer)->domain, 0, 0);
- BEGIN_CS(4);
- OUT_CS_REG(R300_SU_CULL_MODE, rs->cull_mode);
- OUT_CS_REG(R300_ZB_STENCILREFMASK,
- dsa->stencil_ref_mask | r300->stencil_ref.ref_value[0]);
END_CS;
}
-void r300_emit_draw_arrays_immediate(struct r300_context *r300,
- unsigned mode,
- unsigned start,
- unsigned count)
-{
- if (!r300->stencil_ref_bf_fallback) {
- r500_emit_draw_arrays_immediate(r300, mode, start, count);
- } else {
- r300_begin_stencil_ref_fallback(r300);
- r500_emit_draw_arrays_immediate(r300, mode, start, count);
- r300_switch_stencil_ref_side(r300);
- r500_emit_draw_arrays_immediate(r300, mode, start, count);
- r300_end_stencil_ref_fallback(r300);
- }
-}
-
-void r300_emit_draw_arrays(struct r300_context *r300,
- unsigned mode,
- unsigned count)
-{
- if (!r300->stencil_ref_bf_fallback) {
- r500_emit_draw_arrays(r300, mode, count);
- } else {
- r300_begin_stencil_ref_fallback(r300);
- r500_emit_draw_arrays(r300, mode, count);
- r300_switch_stencil_ref_side(r300);
- r500_emit_draw_arrays(r300, mode, count);
- r300_end_stencil_ref_fallback(r300);
- }
-}
-
-void r300_emit_draw_elements(struct r300_context *r300,
- struct pipe_resource* indexBuffer,
- unsigned indexSize,
- unsigned minIndex,
- unsigned maxIndex,
- unsigned mode,
- unsigned start,
- unsigned count)
-{
- if (!r300->stencil_ref_bf_fallback) {
- r500_emit_draw_elements(r300, indexBuffer, indexSize,
- minIndex, maxIndex, mode, start, count);
- } else {
- r300_begin_stencil_ref_fallback(r300);
- r500_emit_draw_elements(r300, indexBuffer, indexSize,
- minIndex, maxIndex, mode, start, count);
- r300_switch_stencil_ref_side(r300);
- r500_emit_draw_elements(r300, indexBuffer, indexSize,
- minIndex, maxIndex, mode, start, count);
- r300_end_stencil_ref_fallback(r300);
- }
-}
-
static void r300_shorten_ubyte_elts(struct r300_context* r300,
struct pipe_resource** elts,
+ int index_bias,
unsigned start,
unsigned count)
{
in_map += start;
for (i = 0; i < count; i++) {
- *out_map = (unsigned short)*in_map;
+ *out_map = (unsigned short)(*in_map + index_bias);
in_map++;
out_map++;
}
*elts = new_elts;
}
-static void r300_align_ushort_elts(struct r300_context *r300,
- struct pipe_resource **elts,
- unsigned start, unsigned count)
+static void r300_rebuild_ushort_elts(struct r300_context *r300,
+ struct pipe_resource **elts,
+ int index_bias,
+ unsigned start, unsigned count)
{
- struct pipe_context* context = &r300->context;
+ struct pipe_context *context = &r300->context;
struct pipe_transfer *in_transfer = NULL;
struct pipe_transfer *out_transfer = NULL;
- struct pipe_resource* new_elts;
+ struct pipe_resource *new_elts;
unsigned short *in_map;
unsigned short *out_map;
+ unsigned i;
new_elts = pipe_buffer_create(context->screen,
PIPE_BIND_INDEX_BUFFER,
2 * count);
in_map = pipe_buffer_map(context, *elts,
- PIPE_TRANSFER_READ, &in_transfer);
+ PIPE_TRANSFER_READ, &in_transfer);
out_map = pipe_buffer_map(context, new_elts,
PIPE_TRANSFER_WRITE, &out_transfer);
- memcpy(out_map, in_map+start, 2 * count);
+ in_map += start;
+ for (i = 0; i < count; i++) {
+ *out_map = (unsigned short)(*in_map + index_bias);
+ in_map++;
+ out_map++;
+ }
+
+ pipe_buffer_unmap(context, *elts, in_transfer);
+ pipe_buffer_unmap(context, new_elts, out_transfer);
+
+ *elts = new_elts;
+}
+
+static void r300_rebuild_uint_elts(struct r300_context *r300,
+ struct pipe_resource **elts,
+ int index_bias,
+ unsigned start, unsigned count)
+{
+ struct pipe_context *context = &r300->context;
+ struct pipe_transfer *in_transfer = NULL;
+ struct pipe_transfer *out_transfer = NULL;
+ struct pipe_resource *new_elts;
+ unsigned int *in_map;
+ unsigned int *out_map;
+ unsigned i;
+
+ new_elts = pipe_buffer_create(context->screen,
+ PIPE_BIND_INDEX_BUFFER,
+ 2 * count);
+
+ in_map = pipe_buffer_map(context, *elts,
+ PIPE_TRANSFER_READ, &in_transfer);
+ out_map = pipe_buffer_map(context, new_elts,
+ PIPE_TRANSFER_WRITE, &out_transfer);
+
+ in_map += start;
+ for (i = 0; i < count; i++) {
+ *out_map = (unsigned int)(*in_map + index_bias);
+ in_map++;
+ out_map++;
+ }
pipe_buffer_unmap(context, *elts, in_transfer);
pipe_buffer_unmap(context, new_elts, out_transfer);
}
/* This is the fast-path drawing & emission for HW TCL. */
-void r300_draw_range_elements(struct pipe_context* pipe,
- struct pipe_resource* indexBuffer,
- unsigned indexSize,
- int indexBias,
- unsigned minIndex,
- unsigned maxIndex,
- unsigned mode,
- unsigned start,
- unsigned count)
+static void r300_draw_range_elements(struct pipe_context* pipe,
+ struct pipe_resource* indexBuffer,
+ unsigned indexSize,
+ int indexBias,
+ unsigned minIndex,
+ unsigned maxIndex,
+ unsigned mode,
+ unsigned start,
+ unsigned count)
{
struct r300_context* r300 = r300_context(pipe);
struct pipe_resource* orgIndexBuffer = indexBuffer;
count > 65536 &&
r300->rws->get_value(r300->rws, R300_VID_DRM_2_3_0);
unsigned short_count;
+ int buffer_offset = 0, index_offset = 0; /* for index bias emulation */
if (r300->skip_rendering) {
return;
return;
}
- if (indexSize == 1) {
- r300_shorten_ubyte_elts(r300, &indexBuffer, start, count);
- indexSize = 2;
- start = 0;
- } else if (indexSize == 2 && start % 2 != 0) {
- r300_align_ushort_elts(r300, &indexBuffer, start, count);
- start = 0;
+ if (indexBias && !index_bias_supported(r300)) {
+ r300_split_index_bias(r300, indexBias, &buffer_offset, &index_offset);
+ }
+
+ /* Rebuild the index buffer if needed. */
+ switch (indexSize) {
+ case 1:
+ r300_shorten_ubyte_elts(r300, &indexBuffer, index_offset, start, count);
+ indexSize = 2;
+ start = 0;
+ break;
+
+ case 2:
+ if (start % 2 != 0 || index_offset) {
+ r300_rebuild_ushort_elts(r300, &indexBuffer, index_offset, start, count);
+ start = 0;
+ }
+ break;
+
+ case 4:
+ if (index_offset) {
+ r300_rebuild_uint_elts(r300, &indexBuffer, index_offset, start, count);
+ start = 0;
+ }
+ break;
}
r300_update_derived_state(r300);
/* 15 dwords for emit_draw_elements */
r300_prepare_for_rendering(r300,
PREP_FIRST_DRAW | PREP_VALIDATE_VBOS | PREP_EMIT_AOS | PREP_INDEXED,
- indexBuffer, 15, 0, indexBias);
+ indexBuffer, 15, buffer_offset, indexBias, NULL);
u_upload_flush(r300->upload_vb);
u_upload_flush(r300->upload_ib);
if (alt_num_verts || count <= 65535) {
- r300->emit_draw_elements(r300, indexBuffer, indexSize,
+ r300_emit_draw_elements(r300, indexBuffer, indexSize,
minIndex, maxIndex, mode, start, count);
} else {
do {
short_count = MIN2(count, 65534);
- r300->emit_draw_elements(r300, indexBuffer, indexSize,
+ r300_emit_draw_elements(r300, indexBuffer, indexSize,
minIndex, maxIndex,
mode, start, short_count);
if (count) {
r300_prepare_for_rendering(r300,
PREP_VALIDATE_VBOS | PREP_EMIT_AOS | PREP_INDEXED,
- indexBuffer, 15, 0, indexBias);
+ indexBuffer, 15, buffer_offset, indexBias, NULL);
}
} while (count);
}
}
/* Simple helpers for context setup. Should probably be moved to util. */
-void r300_draw_elements(struct pipe_context* pipe,
- struct pipe_resource* indexBuffer,
- unsigned indexSize, int indexBias, unsigned mode,
- unsigned start, unsigned count)
+static void r300_draw_elements(struct pipe_context* pipe,
+ struct pipe_resource* indexBuffer,
+ unsigned indexSize, int indexBias, unsigned mode,
+ unsigned start, unsigned count)
{
struct r300_context *r300 = r300_context(pipe);
mode, start, count);
}
-void r300_draw_arrays(struct pipe_context* pipe, unsigned mode,
- unsigned start, unsigned count)
+static void r300_draw_arrays(struct pipe_context* pipe, unsigned mode,
+ unsigned start, unsigned count)
{
struct r300_context* r300 = r300_context(pipe);
boolean alt_num_verts = r300->screen->caps.is_r500 &&
r300_update_derived_state(r300);
if (immd_is_good_idea(r300, count)) {
- r300->emit_draw_arrays_immediate(r300, mode, start, count);
+ r300_emit_draw_arrays_immediate(r300, mode, start, count);
} else {
/* 9 spare dwords for emit_draw_arrays. */
r300_prepare_for_rendering(r300, PREP_FIRST_DRAW | PREP_VALIDATE_VBOS | PREP_EMIT_AOS,
- NULL, 9, start, 0);
+ NULL, 9, start, 0, NULL);
if (alt_num_verts || count <= 65535) {
- r300->emit_draw_arrays(r300, mode, count);
+ r300_emit_draw_arrays(r300, mode, count);
} else {
do {
short_count = MIN2(count, 65535);
- r300->emit_draw_arrays(r300, mode, short_count);
+ r300_emit_draw_arrays(r300, mode, short_count);
start += short_count;
count -= short_count;
if (count) {
r300_prepare_for_rendering(r300,
PREP_VALIDATE_VBOS | PREP_EMIT_AOS, NULL, 9,
- start, 0);
+ start, 0, NULL);
}
} while (count);
}
***************************************************************************/
/* SW TCL arrays, using Draw. */
-void r300_swtcl_draw_arrays(struct pipe_context* pipe,
- unsigned mode,
- unsigned start,
- unsigned count)
+static void r300_swtcl_draw_arrays(struct pipe_context* pipe,
+ unsigned mode,
+ unsigned start,
+ unsigned count)
{
struct r300_context* r300 = r300_context(pipe);
struct pipe_transfer *vb_transfer[PIPE_MAX_ATTRIBS];
draw_arrays(r300->draw, mode, start, count);
+ /* XXX Not sure whether this is the best fix.
+ * It prevents CS from being rejected and weird assertion failures. */
+ draw_flush(r300->draw);
+
for (i = 0; i < r300->vertex_buffer_count; i++) {
pipe_buffer_unmap(pipe, r300->vertex_buffer[i].buffer,
vb_transfer[i]);
}
/* SW TCL elements, using Draw. */
-void r300_swtcl_draw_range_elements(struct pipe_context* pipe,
- struct pipe_resource* indexBuffer,
- unsigned indexSize,
- int indexBias,
- unsigned minIndex,
- unsigned maxIndex,
- unsigned mode,
- unsigned start,
- unsigned count)
+static void r300_swtcl_draw_range_elements(struct pipe_context* pipe,
+ struct pipe_resource* indexBuffer,
+ unsigned indexSize,
+ int indexBias,
+ unsigned minIndex,
+ unsigned maxIndex,
+ unsigned mode,
+ unsigned start,
+ unsigned count)
{
struct r300_context* r300 = r300_context(pipe);
struct pipe_transfer *vb_transfer[PIPE_MAX_ATTRIBS];
draw_arrays(r300->draw, mode, start, count);
+ /* XXX Not sure whether this is the best fix.
+ * It prevents CS from being rejected and weird assertion failures. */
+ draw_flush(r300->draw);
+
for (i = 0; i < r300->vertex_buffer_count; i++) {
pipe_buffer_unmap(pipe, r300->vertex_buffer[i].buffer,
vb_transfer[i]);
{
struct r300_render* r300render = r300_render(render);
+ assert(!r300render->vbo_transfer);
+
r300render->vbo_ptr = pipe_buffer_map(&r300render->r300->context,
r300render->vbo,
PIPE_TRANSFER_WRITE,
{
struct r300_render* r300render = r300_render(render);
struct pipe_context* context = &r300render->r300->context;
- CS_LOCALS(r300render->r300);
- BEGIN_CS(2);
- OUT_CS_REG(R300_VAP_VF_MAX_VTX_INDX, max);
- END_CS;
+
+ assert(r300render->vbo_transfer);
r300render->vbo_max_used = MAX2(r300render->vbo_max_used,
r300render->vertex_size * (max + 1));
pipe_buffer_unmap(context, r300render->vbo, r300render->vbo_transfer);
+
+ r300render->vbo_transfer = NULL;
}
static void r300_render_release_vertices(struct vbuf_render* render)
return TRUE;
}
-static void r500_render_draw_arrays(struct vbuf_render* render,
+static void r300_render_draw_arrays(struct vbuf_render* render,
unsigned start,
unsigned count)
{
struct r300_context* r300 = r300render->r300;
uint8_t* ptr;
unsigned i;
+ unsigned dwords = 6;
CS_LOCALS(r300);
(void) i; (void) ptr;
- r300_prepare_for_rendering(r300, PREP_FIRST_DRAW, NULL, 4, 0, 0);
+ r300_prepare_for_rendering(r300, PREP_FIRST_DRAW | PREP_EMIT_AOS_SWTCL,
+ NULL, dwords, 0, 0, NULL);
DBG(r300, DBG_DRAW, "r300: Doing vbuf render, count %d\n", count);
r300render->vbo_transfer);
*/
- BEGIN_CS(4);
+ BEGIN_CS(dwords);
OUT_CS_REG(R300_GA_COLOR_CONTROL,
r300_provoking_vertex_fixes(r300, r300render->prim));
+ OUT_CS_REG(R300_VAP_VF_MAX_VTX_INDX, count - 1);
OUT_CS_PKT3(R300_PACKET3_3D_DRAW_VBUF_2, 0);
OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_VERTEX_LIST | (count << 16) |
r300render->hwprim);
END_CS;
}
-static void r500_render_draw_elements(struct vbuf_render* render,
+static void r300_render_draw_elements(struct vbuf_render* render,
const ushort* indices,
uint count)
{
struct r300_render* r300render = r300_render(render);
struct r300_context* r300 = r300render->r300;
int i;
- unsigned dwords = 4 + (count+1)/2;
+ unsigned end_cs_dwords;
+ unsigned max_index = (r300render->vbo_size - r300render->vbo_offset) /
+ (r300render->r300->vertex_info.size * 4) - 1;
+ unsigned short_count;
+ struct r300_cs_info cs_info;
CS_LOCALS(r300);
- r300_prepare_for_rendering(r300, PREP_FIRST_DRAW, NULL, dwords, 0, 0);
-
- BEGIN_CS(dwords);
- OUT_CS_REG(R300_GA_COLOR_CONTROL,
- r300_provoking_vertex_fixes(r300, r300render->prim));
- OUT_CS_PKT3(R300_PACKET3_3D_DRAW_INDX_2, (count+1)/2);
- OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_INDICES | (count << 16) |
- r300render->hwprim);
- for (i = 0; i < count-1; i += 2) {
- OUT_CS(indices[i+1] << 16 | indices[i]);
- }
- if (count % 2) {
- OUT_CS(indices[count-1]);
- }
- END_CS;
-}
-
-static void r300_render_draw_arrays(struct vbuf_render* render,
- unsigned start,
- unsigned count)
-{
- struct r300_context* r300 = r300_render(render)->r300;
-
- if (!r300->stencil_ref_bf_fallback) {
- r500_render_draw_arrays(render, start, count);
- } else {
- r300_begin_stencil_ref_fallback(r300);
- r500_render_draw_arrays(render, start, count);
- r300_switch_stencil_ref_side(r300);
- r500_render_draw_arrays(render, start, count);
- r300_end_stencil_ref_fallback(r300);
- }
-}
+ /* Reserve at least 256 dwords.
+ *
+ * Below we manage the CS space manually because there may be more
+ * indices than it can fit in CS. */
+ r300_prepare_for_rendering(r300,
+ PREP_FIRST_DRAW | PREP_EMIT_AOS_SWTCL | PREP_INDEXED,
+ NULL, 256, 0, 0, &end_cs_dwords);
+
+ while (count) {
+ r300->rws->get_cs_info(r300->rws, &cs_info);
+
+ short_count = MIN2(count, (cs_info.free - end_cs_dwords - 6) * 2);
+
+ BEGIN_CS(6 + (short_count+1)/2);
+ OUT_CS_REG(R300_GA_COLOR_CONTROL,
+ r300_provoking_vertex_fixes(r300, r300render->prim));
+ OUT_CS_REG(R300_VAP_VF_MAX_VTX_INDX, max_index);
+ OUT_CS_PKT3(R300_PACKET3_3D_DRAW_INDX_2, (short_count+1)/2);
+ OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_INDICES | (short_count << 16) |
+ r300render->hwprim);
+ for (i = 0; i < short_count-1; i += 2) {
+ OUT_CS(indices[i+1] << 16 | indices[i]);
+ }
+ if (short_count % 2) {
+ OUT_CS(indices[short_count-1]);
+ }
+ END_CS;
-static void r300_render_draw_elements(struct vbuf_render* render,
- const ushort* indices,
- uint count)
-{
- struct r300_context* r300 = r300_render(render)->r300;
+ /* OK now subtract the emitted indices and see if we need to emit
+ * another draw packet. */
+ indices += short_count;
+ count -= short_count;
- if (!r300->stencil_ref_bf_fallback) {
- r500_render_draw_elements(render, indices, count);
- } else {
- r300_begin_stencil_ref_fallback(r300);
- r500_render_draw_elements(render, indices, count);
- r300_switch_stencil_ref_side(r300);
- r500_render_draw_elements(render, indices, count);
- r300_end_stencil_ref_fallback(r300);
+ if (count) {
+ r300_prepare_for_rendering(r300,
+ PREP_EMIT_AOS_SWTCL | PREP_INDEXED,
+ NULL, 256, 0, 0, &end_cs_dwords);
+ }
}
}
r300render->base.map_vertices = r300_render_map_vertices;
r300render->base.unmap_vertices = r300_render_unmap_vertices;
r300render->base.set_primitive = r300_render_set_primitive;
- if (r300->screen->caps.is_r500) {
- r300render->base.draw_elements = r500_render_draw_elements;
- r300render->base.draw_arrays = r500_render_draw_arrays;
- } else {
- r300render->base.draw_elements = r300_render_draw_elements;
- r300render->base.draw_arrays = r300_render_draw_arrays;
- }
+ r300render->base.draw_elements = r300_render_draw_elements;
+ r300render->base.draw_arrays = r300_render_draw_arrays;
r300render->base.release_vertices = r300_render_release_vertices;
r300render->base.destroy = r300_render_destroy;
return stage;
}
+
+/****************************************************************************
+ * Two-sided stencil reference value fallback. It's designed to be as much
+ * separate from rest of the driver as possible.
+ ***************************************************************************/
+
+struct r300_stencilref_context {
+ void (*draw_arrays)(struct pipe_context *pipe,
+ unsigned mode, unsigned start, unsigned count);
+
+ void (*draw_range_elements)(
+ struct pipe_context *pipe, struct pipe_resource *indexBuffer,
+ unsigned indexSize, int indexBias, unsigned minIndex, unsigned maxIndex,
+ unsigned mode, unsigned start, unsigned count);
+
+ uint32_t rs_cull_mode;
+ uint32_t zb_stencilrefmask;
+ ubyte ref_value_front;
+};
+
+static boolean r300_stencilref_needed(struct r300_context *r300)
+{
+ struct r300_dsa_state *dsa = (struct r300_dsa_state*)r300->dsa_state.state;
+
+ return dsa->two_sided_stencil_ref ||
+ (dsa->two_sided &&
+ r300->stencil_ref.ref_value[0] != r300->stencil_ref.ref_value[1]);
+}
+
+/* Set drawing for front faces. */
+static void r300_stencilref_begin(struct r300_context *r300)
+{
+ struct r300_stencilref_context *sr = r300->stencilref_fallback;
+ struct r300_rs_state *rs = (struct r300_rs_state*)r300->rs_state.state;
+ struct r300_dsa_state *dsa = (struct r300_dsa_state*)r300->dsa_state.state;
+
+ /* Save state. */
+ sr->rs_cull_mode = rs->cull_mode;
+ sr->zb_stencilrefmask = dsa->stencil_ref_mask;
+ sr->ref_value_front = r300->stencil_ref.ref_value[0];
+
+ /* We *cull* pixels, therefore no need to mask out the bits. */
+ rs->cull_mode |= R300_CULL_BACK;
+
+ r300->rs_state.dirty = TRUE;
+}
+
+/* Set drawing for back faces. */
+static void r300_stencilref_switch_side(struct r300_context *r300)
+{
+ struct r300_stencilref_context *sr = r300->stencilref_fallback;
+ struct r300_rs_state *rs = (struct r300_rs_state*)r300->rs_state.state;
+ struct r300_dsa_state *dsa = (struct r300_dsa_state*)r300->dsa_state.state;
+
+ rs->cull_mode = sr->rs_cull_mode | R300_CULL_FRONT;
+ dsa->stencil_ref_mask = dsa->stencil_ref_bf;
+ r300->stencil_ref.ref_value[0] = r300->stencil_ref.ref_value[1];
+
+ r300->rs_state.dirty = TRUE;
+ r300->dsa_state.dirty = TRUE;
+}
+
+/* Restore the original state. */
+static void r300_stencilref_end(struct r300_context *r300)
+{
+ struct r300_stencilref_context *sr = r300->stencilref_fallback;
+ struct r300_rs_state *rs = (struct r300_rs_state*)r300->rs_state.state;
+ struct r300_dsa_state *dsa = (struct r300_dsa_state*)r300->dsa_state.state;
+
+ /* Restore state. */
+ rs->cull_mode = sr->rs_cull_mode;
+ dsa->stencil_ref_mask = sr->zb_stencilrefmask;
+ r300->stencil_ref.ref_value[0] = sr->ref_value_front;
+
+ r300->rs_state.dirty = TRUE;
+ r300->dsa_state.dirty = TRUE;
+}
+
+static void r300_stencilref_draw_arrays(struct pipe_context *pipe, unsigned mode,
+ unsigned start, unsigned count)
+{
+ struct r300_context *r300 = r300_context(pipe);
+ struct r300_stencilref_context *sr = r300->stencilref_fallback;
+
+ if (!r300_stencilref_needed(r300)) {
+ sr->draw_arrays(pipe, mode, start, count);
+ } else {
+ r300_stencilref_begin(r300);
+ sr->draw_arrays(pipe, mode, start, count);
+ r300_stencilref_switch_side(r300);
+ sr->draw_arrays(pipe, mode, start, count);
+ r300_stencilref_end(r300);
+ }
+}
+
+static void r300_stencilref_draw_range_elements(
+ struct pipe_context *pipe, struct pipe_resource *indexBuffer,
+ unsigned indexSize, int indexBias, unsigned minIndex, unsigned maxIndex,
+ unsigned mode, unsigned start, unsigned count)
+{
+ struct r300_context *r300 = r300_context(pipe);
+ struct r300_stencilref_context *sr = r300->stencilref_fallback;
+
+ if (!r300_stencilref_needed(r300)) {
+ sr->draw_range_elements(pipe, indexBuffer, indexSize, indexBias,
+ minIndex, maxIndex, mode, start, count);
+ } else {
+ r300_stencilref_begin(r300);
+ sr->draw_range_elements(pipe, indexBuffer, indexSize, indexBias,
+ minIndex, maxIndex, mode, start, count);
+ r300_stencilref_switch_side(r300);
+ sr->draw_range_elements(pipe, indexBuffer, indexSize, indexBias,
+ minIndex, maxIndex, mode, start, count);
+ r300_stencilref_end(r300);
+ }
+}
+
+static void r300_plug_in_stencil_ref_fallback(struct r300_context *r300)
+{
+ r300->stencilref_fallback = CALLOC_STRUCT(r300_stencilref_context);
+
+ /* Save original draw functions. */
+ r300->stencilref_fallback->draw_arrays = r300->context.draw_arrays;
+ r300->stencilref_fallback->draw_range_elements = r300->context.draw_range_elements;
+
+ /* Override the draw functions. */
+ r300->context.draw_arrays = r300_stencilref_draw_arrays;
+ r300->context.draw_range_elements = r300_stencilref_draw_range_elements;
+}
+
+void r300_init_render_functions(struct r300_context *r300)
+{
+ /* Set generic functions. */
+ r300->context.draw_elements = r300_draw_elements;
+
+ /* Set draw functions based on presence of HW TCL. */
+ if (r300->screen->caps.has_tcl) {
+ r300->context.draw_arrays = r300_draw_arrays;
+ r300->context.draw_range_elements = r300_draw_range_elements;
+ } else {
+ r300->context.draw_arrays = r300_swtcl_draw_arrays;
+ r300->context.draw_range_elements = r300_swtcl_draw_range_elements;
+ }
+
+ /* Plug in two-sided stencil reference value fallback if needed. */
+ if (!r300->screen->caps.is_r500)
+ r300_plug_in_stencil_ref_fallback(r300);
+}