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path: root/src/gallium/drivers/r300/r300_render.c
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Diffstat (limited to 'src/gallium/drivers/r300/r300_render.c')
-rw-r--r--src/gallium/drivers/r300/r300_render.c124
1 files changed, 76 insertions, 48 deletions
diff --git a/src/gallium/drivers/r300/r300_render.c b/src/gallium/drivers/r300/r300_render.c
index f58d511e11..dd3b3c430a 100644
--- a/src/gallium/drivers/r300/r300_render.c
+++ b/src/gallium/drivers/r300/r300_render.c
@@ -130,7 +130,7 @@ void r500_emit_index_bias(struct r300_context *r300, int index_bias)
/* 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
+ * in r300_emit_vertex_arrays (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. */
@@ -166,8 +166,8 @@ static void r300_split_index_bias(struct r300_context *r300, int index_bias,
enum r300_prepare_flags {
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_EMIT_AOS = (1 << 2), /* call emit_vertex_arrays? */
+ PREP_EMIT_AOS_SWTCL = (1 << 3), /* call emit_vertex_arrays_swtcl? */
PREP_INDEXED = (1 << 4) /* is this draw_elements? */
};
@@ -185,8 +185,8 @@ static boolean r300_reserve_cs_dwords(struct r300_context *r300,
{
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 emit_vertex_arrays = flags & PREP_EMIT_AOS;
+ boolean emit_vertex_arrays_swtcl = flags & PREP_EMIT_AOS_SWTCL;
/* Add dirty state, index offset, and AOS. */
if (first_draw) {
@@ -195,11 +195,11 @@ static boolean r300_reserve_cs_dwords(struct r300_context *r300,
if (r300->screen->caps.index_bias_supported)
cs_dwords += 2; /* emit_index_offset */
- if (emit_aos)
- cs_dwords += 55; /* emit_aos */
+ if (emit_vertex_arrays)
+ cs_dwords += 55; /* emit_vertex_arrays */
- if (emit_aos_swtcl)
- cs_dwords += 7; /* emit_aos_swtcl */
+ if (emit_vertex_arrays_swtcl)
+ cs_dwords += 7; /* emit_vertex_arrays_swtcl */
}
cs_dwords += r300_get_num_cs_end_dwords(r300);
@@ -218,19 +218,19 @@ static boolean r300_reserve_cs_dwords(struct r300_context *r300,
* \param r300 The context.
* \param flags See r300_prepare_flags.
* \param index_buffer The index buffer to validate. The parameter may be NULL.
- * \param aos_offset The offset passed to emit_aos.
+ * \param buffer_offset The offset passed to emit_vertex_arrays.
* \param index_bias The index bias to emit.
* \return TRUE if rendering should be skipped
*/
static boolean r300_emit_states(struct r300_context *r300,
enum r300_prepare_flags flags,
struct pipe_resource *index_buffer,
- int aos_offset,
+ int buffer_offset,
int index_bias)
{
boolean first_draw = flags & PREP_FIRST_DRAW;
- boolean emit_aos = flags & PREP_EMIT_AOS;
- boolean emit_aos_swtcl = flags & PREP_EMIT_AOS_SWTCL;
+ boolean emit_vertex_arrays = flags & PREP_EMIT_AOS;
+ boolean emit_vertex_arrays_swtcl = flags & PREP_EMIT_AOS_SWTCL;
boolean indexed = flags & PREP_INDEXED;
boolean validate_vbos = flags & PREP_VALIDATE_VBOS;
@@ -264,11 +264,11 @@ static boolean r300_emit_states(struct r300_context *r300,
r500_emit_index_bias(r300, 0);
}
- if (emit_aos)
- r300_emit_aos(r300, aos_offset, indexed);
+ if (emit_vertex_arrays)
+ r300_emit_vertex_arrays(r300, buffer_offset, indexed);
- if (emit_aos_swtcl)
- r300_emit_aos_swtcl(r300, indexed);
+ if (emit_vertex_arrays_swtcl)
+ r300_emit_vertex_arrays_swtcl(r300, indexed);
}
return TRUE;
@@ -281,7 +281,7 @@ static boolean r300_emit_states(struct r300_context *r300,
* \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 buffer_offset The offset passed to emit_vertex_arrays.
* \param index_bias The index bias to emit.
* \return TRUE if rendering should be skipped
*/
@@ -289,13 +289,13 @@ static boolean r300_prepare_for_rendering(struct r300_context *r300,
enum r300_prepare_flags flags,
struct pipe_resource *index_buffer,
unsigned cs_dwords,
- int aos_offset,
+ int buffer_offset,
int index_bias)
{
if (r300_reserve_cs_dwords(r300, flags, cs_dwords))
flags |= PREP_FIRST_DRAW;
- return r300_emit_states(r300, flags, index_buffer, aos_offset, index_bias);
+ return r300_emit_states(r300, flags, index_buffer, buffer_offset, index_bias);
}
static boolean immd_is_good_idea(struct r300_context *r300,
@@ -467,10 +467,10 @@ static void r300_emit_draw_elements(struct r300_context *r300,
unsigned maxIndex,
unsigned mode,
unsigned start,
- unsigned count)
+ unsigned count,
+ uint16_t *imm_indices3)
{
- uint32_t count_dwords;
- uint32_t offset_dwords = indexSize * start / sizeof(uint32_t);
+ uint32_t count_dwords, offset_dwords;
boolean alt_num_verts = count > 65535;
CS_LOCALS(r300);
@@ -485,15 +485,39 @@ static void r300_emit_draw_elements(struct r300_context *r300,
DBG(r300, DBG_DRAW, "r300: Indexbuf of %u indices, min %u max %u\n",
count, minIndex, maxIndex);
- BEGIN_CS(13 + (alt_num_verts ? 2 : 0));
- if (alt_num_verts) {
- OUT_CS_REG(R500_VAP_ALT_NUM_VERTICES, count);
- }
+ BEGIN_CS(5);
OUT_CS_REG(R300_GA_COLOR_CONTROL,
r300_provoking_vertex_fixes(r300, mode));
OUT_CS_REG_SEQ(R300_VAP_VF_MAX_VTX_INDX, 2);
OUT_CS(maxIndex);
OUT_CS(minIndex);
+ END_CS;
+
+ /* If start is odd, render the first triangle with indices embedded
+ * in the command stream. This will increase start by 3 and make it
+ * even. We can then proceed without a fallback. */
+ if (indexSize == 2 && (start & 1) &&
+ mode == PIPE_PRIM_TRIANGLES) {
+ BEGIN_CS(4);
+ OUT_CS_PKT3(R300_PACKET3_3D_DRAW_INDX_2, 2);
+ OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_INDICES | (3 << 16) |
+ R300_VAP_VF_CNTL__PRIM_TRIANGLES);
+ OUT_CS(imm_indices3[1] << 16 | imm_indices3[0]);
+ OUT_CS(imm_indices3[2]);
+ END_CS;
+
+ start += 3;
+ count -= 3;
+ if (!count)
+ return;
+ }
+
+ offset_dwords = indexSize * start / sizeof(uint32_t);
+
+ BEGIN_CS(8 + (alt_num_verts ? 2 : 0));
+ if (alt_num_verts) {
+ OUT_CS_REG(R500_VAP_ALT_NUM_VERTICES, count);
+ }
OUT_CS_PKT3(R300_PACKET3_3D_DRAW_INDX_2, 0);
if (indexSize == 4) {
count_dwords = count;
@@ -541,7 +565,7 @@ static void r300_draw_range_elements(struct pipe_context* pipe,
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 */
- unsigned new_offset;
+ uint16_t indices3[3];
if (indexBias && !r300->screen->caps.index_bias_supported) {
r300_split_index_bias(r300, indexBias, &buffer_offset, &index_offset);
@@ -553,43 +577,48 @@ static void r300_draw_range_elements(struct pipe_context* pipe,
r300_update_derived_state(r300);
/* Fallback for misaligned ushort indices. */
- if (indexSize == 2 && start % 2 == 1) {
+ if (indexSize == 2 && (start & 1) &&
+ !r300_buffer_is_user_buffer(indexBuffer)) {
struct pipe_transfer *transfer;
struct pipe_resource *userbuf;
+
uint16_t *ptr = pipe_buffer_map(pipe, indexBuffer,
PIPE_TRANSFER_READ, &transfer);
- /* Copy the mapped index buffer directly to the upload buffer.
- * The start index will be aligned simply from the fact that
- * every sub-buffer in u_upload_mgr is aligned. */
- userbuf = pipe->screen->user_buffer_create(pipe->screen,
- ptr + start, count * 2,
- PIPE_BIND_INDEX_BUFFER);
- indexBuffer = userbuf;
- r300_upload_index_buffer(r300, &indexBuffer, indexSize, 0, count, &new_offset);
- pipe_resource_reference(&userbuf, NULL);
+ if (mode == PIPE_PRIM_TRIANGLES) {
+ memcpy(indices3, ptr + start, 6);
+ } else {
+ /* Copy the mapped index buffer directly to the upload buffer.
+ * The start index will be aligned simply from the fact that
+ * every sub-buffer in u_upload_mgr is aligned. */
+ userbuf = pipe->screen->user_buffer_create(pipe->screen,
+ ptr, count * 2,
+ PIPE_BIND_INDEX_BUFFER);
+ indexBuffer = userbuf;
+ r300_upload_index_buffer(r300, &indexBuffer, indexSize, &start, count);
+ pipe_resource_reference(&userbuf, NULL);
+ }
pipe_buffer_unmap(pipe, transfer);
} else {
- r300_upload_index_buffer(r300, &indexBuffer, indexSize, start, count, &new_offset);
+ if (r300_buffer_is_user_buffer(indexBuffer))
+ r300_upload_index_buffer(r300, &indexBuffer, indexSize, &start, count);
}
- start = new_offset;
-
- /* 15 dwords for emit_draw_elements. Give up if the function fails. */
+ /* 19 dwords for emit_draw_elements. Give up if the function fails. */
if (!r300_prepare_for_rendering(r300,
PREP_FIRST_DRAW | PREP_VALIDATE_VBOS | PREP_EMIT_AOS |
- PREP_INDEXED, indexBuffer, 15, buffer_offset, indexBias))
+ PREP_INDEXED, indexBuffer, 19, buffer_offset, indexBias))
goto done;
if (alt_num_verts || count <= 65535) {
r300_emit_draw_elements(r300, indexBuffer, indexSize,
- minIndex, maxIndex, mode, start, count);
+ minIndex, maxIndex, mode, start, count, indices3);
} else {
do {
short_count = MIN2(count, 65534);
r300_emit_draw_elements(r300, indexBuffer, indexSize,
minIndex, maxIndex,
- mode, start, short_count);
+ mode, start, short_count, indices3);
start += short_count;
count -= short_count;
@@ -598,7 +627,7 @@ static void r300_draw_range_elements(struct pipe_context* pipe,
if (count) {
if (!r300_prepare_for_rendering(r300,
PREP_VALIDATE_VBOS | PREP_EMIT_AOS | PREP_INDEXED,
- indexBuffer, 15, buffer_offset, indexBias))
+ indexBuffer, 19, buffer_offset, indexBias))
goto done;
}
} while (count);
@@ -1041,8 +1070,7 @@ static struct vbuf_render* r300_render_create(struct r300_context* r300)
r300render->r300 = r300;
- /* XXX find real numbers plz */
- r300render->base.max_vertex_buffer_bytes = 128 * 1024;
+ r300render->base.max_vertex_buffer_bytes = 1024 * 1024;
r300render->base.max_indices = 16 * 1024;
r300render->base.get_vertex_info = r300_render_get_vertex_info;
generated by cgit v1.2.3 (git 2.39.1) at 2024-06-03 07:42:52 +0000