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authorDave Airlie <[email protected]>2016-04-11 13:02:20 +1000
committerDave Airlie <[email protected]>2016-04-12 14:16:13 +1000
commitafa8707ba93a7d226a76319acda2a8dd89524db7 (patch)
tree1e866666402a7b6b2bcc99529eec3a7b11783be4 /src/gallium
parentc2aeeca4554d744b6293ad87d9a183e51b0138ff (diff)
softpipe: add SSBO/shader atomics support.
This adds support for the features requires for ARB_shader_storage_buffer_object and ARB_shader_atomic_counters, ARB_shader_atomic_counter_ops. [airlied: some cleanups applied] Reviewed-by: Brian Paul <[email protected]> Reviewed-by: Roland Scheidegger <[email protected]> Signed-off-by: Dave Airlie <[email protected]>
Diffstat (limited to 'src/gallium')
-rw-r--r--src/gallium/auxiliary/tgsi/tgsi_exec.h3
-rw-r--r--src/gallium/drivers/softpipe/Makefile.sources1
-rw-r--r--src/gallium/drivers/softpipe/sp_buffer.c371
-rw-r--r--src/gallium/drivers/softpipe/sp_buffer.h37
-rw-r--r--src/gallium/drivers/softpipe/sp_context.c15
-rw-r--r--src/gallium/drivers/softpipe/sp_context.h2
-rw-r--r--src/gallium/drivers/softpipe/sp_fs_exec.c5
-rw-r--r--src/gallium/drivers/softpipe/sp_screen.c3
-rw-r--r--src/gallium/drivers/softpipe/sp_state.h4
-rw-r--r--src/gallium/drivers/softpipe/sp_state_derived.c3
-rw-r--r--src/gallium/drivers/softpipe/sp_state_image.c28
11 files changed, 466 insertions, 6 deletions
diff --git a/src/gallium/auxiliary/tgsi/tgsi_exec.h b/src/gallium/auxiliary/tgsi/tgsi_exec.h
index 257c58f777e..42fb922baa5 100644
--- a/src/gallium/auxiliary/tgsi/tgsi_exec.h
+++ b/src/gallium/auxiliary/tgsi/tgsi_exec.h
@@ -528,8 +528,9 @@ tgsi_exec_get_shader_param(enum pipe_shader_cap param)
return 1;
case PIPE_SHADER_CAP_TGSI_DROUND_SUPPORTED:
case PIPE_SHADER_CAP_TGSI_FMA_SUPPORTED:
- case PIPE_SHADER_CAP_MAX_SHADER_BUFFERS:
return 0;
+ case PIPE_SHADER_CAP_MAX_SHADER_BUFFERS:
+ return PIPE_MAX_SHADER_BUFFERS;
case PIPE_SHADER_CAP_MAX_SHADER_IMAGES:
return PIPE_MAX_SHADER_IMAGES;
diff --git a/src/gallium/drivers/softpipe/Makefile.sources b/src/gallium/drivers/softpipe/Makefile.sources
index 3669dfc71f8..1d42351f975 100644
--- a/src/gallium/drivers/softpipe/Makefile.sources
+++ b/src/gallium/drivers/softpipe/Makefile.sources
@@ -1,4 +1,5 @@
C_SOURCES := \
+ sp_buffer.c \
sp_clear.c \
sp_clear.h \
sp_context.c \
diff --git a/src/gallium/drivers/softpipe/sp_buffer.c b/src/gallium/drivers/softpipe/sp_buffer.c
new file mode 100644
index 00000000000..69717baa1a0
--- /dev/null
+++ b/src/gallium/drivers/softpipe/sp_buffer.c
@@ -0,0 +1,371 @@
+/*
+ * Copyright 2016 Red Hat.
+ *
+ * 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
+ * on 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
+ * THE AUTHOR(S) AND/OR THEIR 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.
+ */
+
+#include "sp_context.h"
+#include "sp_buffer.h"
+#include "sp_texture.h"
+
+#include "util/u_format.h"
+
+static bool
+get_dimensions(const struct pipe_shader_buffer *bview,
+ const struct softpipe_resource *spr,
+ unsigned *width)
+{
+ *width = bview->buffer_size;
+ /*
+ * Bounds check the buffer size from the view
+ * and the buffer size from the underlying buffer.
+ */
+ if (*width > spr->base.width0)
+ return false;
+ return true;
+}
+
+/*
+ * Implement the image LOAD operation.
+ */
+static void
+sp_tgsi_load(const struct tgsi_buffer *buffer,
+ const struct tgsi_buffer_params *params,
+ const int s[TGSI_QUAD_SIZE],
+ float rgba[TGSI_NUM_CHANNELS][TGSI_QUAD_SIZE])
+{
+ struct sp_tgsi_buffer *sp_buf = (struct sp_tgsi_buffer *)buffer;
+ struct pipe_shader_buffer *bview;
+ struct softpipe_resource *spr;
+ unsigned width;
+ int c, j;
+ unsigned char *data_ptr;
+ const struct util_format_description *format_desc = util_format_description(PIPE_FORMAT_R32_UINT);
+
+ if (params->unit > PIPE_MAX_SHADER_BUFFERS)
+ goto fail_write_all_zero;
+
+ bview = &sp_buf->sp_bview[params->unit];
+ spr = softpipe_resource(bview->buffer);
+ if (!spr)
+ goto fail_write_all_zero;
+
+ if (!get_dimensions(bview, spr, &width))
+ return;
+
+ for (j = 0; j < TGSI_QUAD_SIZE; j++) {
+ int s_coord;
+ bool fill_zero = false;
+ uint32_t sdata[4];
+
+ if (!(params->execmask & (1 << j)))
+ fill_zero = true;
+
+ s_coord = s[j];
+ if (s_coord >= width)
+ fill_zero = true;
+
+ if (fill_zero) {
+ for (c = 0; c < 4; c++)
+ rgba[c][j] = 0;
+ continue;
+ }
+ data_ptr = (unsigned char *)spr->data + bview->buffer_offset + s_coord;
+ for (c = 0; c < 4; c++) {
+ format_desc->fetch_rgba_uint(sdata, data_ptr, 0, 0);
+ ((uint32_t *)rgba[c])[j] = sdata[0];
+ data_ptr += 4;
+ }
+ }
+ return;
+fail_write_all_zero:
+ memset(rgba, 0, TGSI_NUM_CHANNELS * TGSI_QUAD_SIZE * 4);
+ return;
+}
+
+/*
+ * Implement the buffer STORE operation.
+ */
+static void
+sp_tgsi_store(const struct tgsi_buffer *buffer,
+ const struct tgsi_buffer_params *params,
+ const int s[TGSI_QUAD_SIZE],
+ float rgba[TGSI_NUM_CHANNELS][TGSI_QUAD_SIZE])
+{
+ struct sp_tgsi_buffer *sp_buf = (struct sp_tgsi_buffer *)buffer;
+ struct pipe_shader_buffer *bview;
+ struct softpipe_resource *spr;
+ unsigned width;
+ unsigned char *data_ptr;
+ int j, c;
+ const struct util_format_description *format_desc = util_format_description(PIPE_FORMAT_R32_UINT);
+
+ if (params->unit > PIPE_MAX_SHADER_BUFFERS)
+ return;
+
+ bview = &sp_buf->sp_bview[params->unit];
+ spr = softpipe_resource(bview->buffer);
+ if (!spr)
+ return;
+
+ if (!get_dimensions(bview, spr, &width))
+ return;
+
+ for (j = 0; j < TGSI_QUAD_SIZE; j++) {
+ int s_coord;
+
+ if (!(params->execmask & (1 << j)))
+ continue;
+
+ s_coord = s[j];
+ if (s_coord >= width)
+ continue;
+
+ data_ptr = (unsigned char *)spr->data + bview->buffer_offset + s_coord;
+
+ for (c = 0; c < 4; c++) {
+ if (params->writemask & (1 << c)) {
+ unsigned temp[4];
+ unsigned char *dptr = data_ptr + (c * 4);
+ temp[0] = ((uint32_t *)rgba[c])[j];
+ format_desc->pack_rgba_uint(dptr, 0, temp, 0, 1, 1);
+ }
+ }
+ }
+}
+
+/*
+ * Implement atomic operations on unsigned integers.
+ */
+static void
+handle_op_uint(const struct pipe_shader_buffer *bview,
+ bool just_read,
+ unsigned char *data_ptr,
+ uint qi,
+ unsigned opcode,
+ unsigned writemask,
+ float rgba[TGSI_NUM_CHANNELS][TGSI_QUAD_SIZE],
+ float rgba2[TGSI_NUM_CHANNELS][TGSI_QUAD_SIZE])
+{
+ uint c;
+ const struct util_format_description *format_desc = util_format_description(PIPE_FORMAT_R32_UINT);
+ unsigned sdata[4];
+
+ for (c = 0; c < 4; c++) {
+ unsigned temp[4];
+ unsigned char *dptr = data_ptr + (c * 4);
+ format_desc->fetch_rgba_uint(temp, dptr, 0, 0);
+ sdata[c] = temp[0];
+ }
+
+ if (just_read) {
+ for (c = 0; c < 4; c++) {
+ ((uint32_t *)rgba[c])[qi] = sdata[c];
+ }
+ return;
+ }
+
+ switch (opcode) {
+ case TGSI_OPCODE_ATOMUADD:
+ for (c = 0; c < 4; c++) {
+ unsigned temp = sdata[c];
+ sdata[c] += ((uint32_t *)rgba[c])[qi];
+ ((uint32_t *)rgba[c])[qi] = temp;
+ }
+ break;
+ case TGSI_OPCODE_ATOMXCHG:
+ for (c = 0; c < 4; c++) {
+ unsigned temp = sdata[c];
+ sdata[c] = ((uint32_t *)rgba[c])[qi];
+ ((uint32_t *)rgba[c])[qi] = temp;
+ }
+ break;
+ case TGSI_OPCODE_ATOMCAS:
+ for (c = 0; c < 4; c++) {
+ unsigned dst_x = sdata[c];
+ unsigned cmp_x = ((uint32_t *)rgba[c])[qi];
+ unsigned src_x = ((uint32_t *)rgba2[c])[qi];
+ unsigned temp = sdata[c];
+ sdata[c] = (dst_x == cmp_x) ? src_x : dst_x;
+ ((uint32_t *)rgba[c])[qi] = temp;
+ }
+ break;
+ case TGSI_OPCODE_ATOMAND:
+ for (c = 0; c < 4; c++) {
+ unsigned temp = sdata[c];
+ sdata[c] &= ((uint32_t *)rgba[c])[qi];
+ ((uint32_t *)rgba[c])[qi] = temp;
+ }
+ break;
+ case TGSI_OPCODE_ATOMOR:
+ for (c = 0; c < 4; c++) {
+ unsigned temp = sdata[c];
+ sdata[c] |= ((uint32_t *)rgba[c])[qi];
+ ((uint32_t *)rgba[c])[qi] = temp;
+ }
+ break;
+ case TGSI_OPCODE_ATOMXOR:
+ for (c = 0; c < 4; c++) {
+ unsigned temp = sdata[c];
+ sdata[c] ^= ((uint32_t *)rgba[c])[qi];
+ ((uint32_t *)rgba[c])[qi] = temp;
+ }
+ break;
+ case TGSI_OPCODE_ATOMUMIN:
+ for (c = 0; c < 4; c++) {
+ unsigned dst_x = sdata[c];
+ unsigned src_x = ((uint32_t *)rgba[c])[qi];
+ sdata[c] = MIN2(dst_x, src_x);
+ ((uint32_t *)rgba[c])[qi] = dst_x;
+ }
+ break;
+ case TGSI_OPCODE_ATOMUMAX:
+ for (c = 0; c < 4; c++) {
+ unsigned dst_x = sdata[c];
+ unsigned src_x = ((uint32_t *)rgba[c])[qi];
+ sdata[c] = MAX2(dst_x, src_x);
+ ((uint32_t *)rgba[c])[qi] = dst_x;
+ }
+ break;
+ case TGSI_OPCODE_ATOMIMIN:
+ for (c = 0; c < 4; c++) {
+ int dst_x = sdata[c];
+ int src_x = ((uint32_t *)rgba[c])[qi];
+ sdata[c] = MIN2(dst_x, src_x);
+ ((uint32_t *)rgba[c])[qi] = dst_x;
+ }
+ break;
+ case TGSI_OPCODE_ATOMIMAX:
+ for (c = 0; c < 4; c++) {
+ int dst_x = sdata[c];
+ int src_x = ((uint32_t *)rgba[c])[qi];
+ sdata[c] = MAX2(dst_x, src_x);
+ ((uint32_t *)rgba[c])[qi] = dst_x;
+ }
+ break;
+ default:
+ assert(!"Unexpected TGSI opcode in sp_tgsi_op");
+ break;
+ }
+
+ for (c = 0; c < 4; c++) {
+ if (writemask & (1 << c)) {
+ unsigned temp[4];
+ unsigned char *dptr = data_ptr + (c * 4);
+ temp[0] = sdata[c];
+ format_desc->pack_rgba_uint(dptr, 0, temp, 0, 1, 1);
+ }
+ }
+}
+
+/*
+ * Implement atomic buffer operations.
+ */
+static void
+sp_tgsi_op(const struct tgsi_buffer *buffer,
+ const struct tgsi_buffer_params *params,
+ unsigned opcode,
+ const int s[TGSI_QUAD_SIZE],
+ float rgba[TGSI_NUM_CHANNELS][TGSI_QUAD_SIZE],
+ float rgba2[TGSI_NUM_CHANNELS][TGSI_QUAD_SIZE])
+{
+ struct sp_tgsi_buffer *sp_buf = (struct sp_tgsi_buffer *)buffer;
+ struct pipe_shader_buffer *bview;
+ struct softpipe_resource *spr;
+ unsigned width;
+ int j, c;
+ unsigned char *data_ptr;
+
+ if (params->unit > PIPE_MAX_SHADER_BUFFERS)
+ return;
+
+ bview = &sp_buf->sp_bview[params->unit];
+ spr = softpipe_resource(bview->buffer);
+ if (!spr)
+ goto fail_write_all_zero;
+
+ if (!get_dimensions(bview, spr, &width))
+ goto fail_write_all_zero;
+
+ for (j = 0; j < TGSI_QUAD_SIZE; j++) {
+ int s_coord;
+ bool just_read = false;
+
+ s_coord = s[j];
+ if (s_coord >= width) {
+ for (c = 0; c < 4; c++) {
+ rgba[c][j] = 0;
+ }
+ continue;
+ }
+
+ /* just readback the value for atomic if execmask isn't set */
+ if (!(params->execmask & (1 << j))) {
+ just_read = true;
+ }
+
+ data_ptr = (unsigned char *)spr->data + bview->buffer_offset + s_coord;
+ /* we should see atomic operations on r32 formats */
+
+ handle_op_uint(bview, just_read, data_ptr, j,
+ opcode, params->writemask, rgba, rgba2);
+ }
+ return;
+fail_write_all_zero:
+ memset(rgba, 0, TGSI_NUM_CHANNELS * TGSI_QUAD_SIZE * 4);
+ return;
+}
+
+/*
+ * return size of the attached buffer for RESQ opcode.
+ */
+static void
+sp_tgsi_get_dims(const struct tgsi_buffer *buffer,
+ const struct tgsi_buffer_params *params,
+ int *dim)
+{
+ struct sp_tgsi_buffer *sp_buf = (struct sp_tgsi_buffer *)buffer;
+ struct pipe_shader_buffer *bview;
+ struct softpipe_resource *spr;
+
+ if (params->unit > PIPE_MAX_SHADER_BUFFERS)
+ return;
+
+ bview = &sp_buf->sp_bview[params->unit];
+ spr = softpipe_resource(bview->buffer);
+ if (!spr)
+ return;
+
+ *dim = bview->buffer_size;
+}
+
+struct sp_tgsi_buffer *
+sp_create_tgsi_buffer(void)
+{
+ struct sp_tgsi_buffer *buf = CALLOC_STRUCT(sp_tgsi_buffer);
+ if (!buf)
+ return NULL;
+
+ buf->base.load = sp_tgsi_load;
+ buf->base.store = sp_tgsi_store;
+ buf->base.op = sp_tgsi_op;
+ buf->base.get_dims = sp_tgsi_get_dims;
+ return buf;
+};
diff --git a/src/gallium/drivers/softpipe/sp_buffer.h b/src/gallium/drivers/softpipe/sp_buffer.h
new file mode 100644
index 00000000000..1822fe709fe
--- /dev/null
+++ b/src/gallium/drivers/softpipe/sp_buffer.h
@@ -0,0 +1,37 @@
+/*
+ * Copyright 2016 Red Hat.
+ *
+ * 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
+ * on 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
+ * THE AUTHOR(S) AND/OR THEIR 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.
+ */
+
+#ifndef SP_BUFFER_H
+#define SP_BUFFER_H
+#include "tgsi/tgsi_exec.h"
+
+struct sp_tgsi_buffer
+{
+ struct tgsi_buffer base;
+ struct pipe_shader_buffer sp_bview[PIPE_MAX_SHADER_BUFFERS];
+};
+
+struct sp_tgsi_buffer *
+sp_create_tgsi_buffer(void);
+
+#endif
diff --git a/src/gallium/drivers/softpipe/sp_context.c b/src/gallium/drivers/softpipe/sp_context.c
index 30b0276cfe0..f66fea2d5d5 100644
--- a/src/gallium/drivers/softpipe/sp_context.c
+++ b/src/gallium/drivers/softpipe/sp_context.c
@@ -38,6 +38,7 @@
#include "util/u_pstipple.h"
#include "util/u_inlines.h"
#include "tgsi/tgsi_exec.h"
+#include "sp_buffer.h"
#include "sp_clear.h"
#include "sp_context.h"
#include "sp_flush.h"
@@ -203,6 +204,10 @@ softpipe_create_context(struct pipe_screen *screen,
softpipe->tgsi.image[i] = sp_create_tgsi_image();
}
+ for (i = 0; i < PIPE_SHADER_TYPES; i++) {
+ softpipe->tgsi.buffer[i] = sp_create_tgsi_buffer();
+ }
+
softpipe->dump_fs = debug_get_bool_option( "SOFTPIPE_DUMP_FS", FALSE );
softpipe->dump_gs = debug_get_bool_option( "SOFTPIPE_DUMP_GS", FALSE );
@@ -288,6 +293,16 @@ softpipe_create_context(struct pipe_screen *screen,
(struct tgsi_image *)
softpipe->tgsi.image[PIPE_SHADER_GEOMETRY]);
+ draw_buffer(softpipe->draw,
+ PIPE_SHADER_VERTEX,
+ (struct tgsi_buffer *)
+ softpipe->tgsi.buffer[PIPE_SHADER_VERTEX]);
+
+ draw_buffer(softpipe->draw,
+ PIPE_SHADER_GEOMETRY,
+ (struct tgsi_buffer *)
+ softpipe->tgsi.buffer[PIPE_SHADER_GEOMETRY]);
+
if (debug_get_bool_option( "SOFTPIPE_NO_RAST", FALSE ))
softpipe->no_rast = TRUE;
diff --git a/src/gallium/drivers/softpipe/sp_context.h b/src/gallium/drivers/softpipe/sp_context.h
index 20a12353b38..70d00c88b6e 100644
--- a/src/gallium/drivers/softpipe/sp_context.h
+++ b/src/gallium/drivers/softpipe/sp_context.h
@@ -84,6 +84,7 @@ struct softpipe_context {
struct pipe_sampler_view *sampler_views[PIPE_SHADER_TYPES][PIPE_MAX_SHADER_SAMPLER_VIEWS];
struct pipe_image_view images[PIPE_SHADER_TYPES][PIPE_MAX_SHADER_IMAGES];
+ struct pipe_shader_buffer buffers[PIPE_SHADER_TYPES][PIPE_MAX_SHADER_BUFFERS];
struct pipe_viewport_state viewports[PIPE_MAX_VIEWPORTS];
struct pipe_vertex_buffer vertex_buffer[PIPE_MAX_ATTRIBS];
struct pipe_index_buffer index_buffer;
@@ -174,6 +175,7 @@ struct softpipe_context {
struct {
struct sp_tgsi_sampler *sampler[PIPE_SHADER_TYPES];
struct sp_tgsi_image *image[PIPE_SHADER_TYPES];
+ struct sp_tgsi_buffer *buffer[PIPE_SHADER_TYPES];
} tgsi;
struct tgsi_exec_machine *fs_machine;
diff --git a/src/gallium/drivers/softpipe/sp_fs_exec.c b/src/gallium/drivers/softpipe/sp_fs_exec.c
index 6a5f7acd263..155382af825 100644
--- a/src/gallium/drivers/softpipe/sp_fs_exec.c
+++ b/src/gallium/drivers/softpipe/sp_fs_exec.c
@@ -63,14 +63,15 @@ static void
exec_prepare( const struct sp_fragment_shader_variant *var,
struct tgsi_exec_machine *machine,
struct tgsi_sampler *sampler,
- struct tgsi_image *image )
+ struct tgsi_image *image,
+ struct tgsi_buffer *buffer )
{
/*
* Bind tokens/shader to the interpreter's machine state.
*/
tgsi_exec_machine_bind_shader(machine,
var->tokens,
- sampler, image, NULL);
+ sampler, image, buffer);
}
diff --git a/src/gallium/drivers/softpipe/sp_screen.c b/src/gallium/drivers/softpipe/sp_screen.c
index 90f29d6e52a..00b414cea9d 100644
--- a/src/gallium/drivers/softpipe/sp_screen.c
+++ b/src/gallium/drivers/softpipe/sp_screen.c
@@ -259,7 +259,6 @@ softpipe_get_param(struct pipe_screen *screen, enum pipe_cap param)
case PIPE_CAP_MULTI_DRAW_INDIRECT_PARAMS:
case PIPE_CAP_TGSI_FS_POSITION_IS_SYSVAL:
case PIPE_CAP_TGSI_FS_FACE_IS_INTEGER_SYSVAL:
- case PIPE_CAP_SHADER_BUFFER_OFFSET_ALIGNMENT:
case PIPE_CAP_INVALIDATE_BUFFER:
case PIPE_CAP_GENERATE_MIPMAP:
case PIPE_CAP_STRING_MARKER:
@@ -272,6 +271,8 @@ softpipe_get_param(struct pipe_screen *screen, enum pipe_cap param)
case PIPE_CAP_PCI_FUNCTION:
case PIPE_CAP_FRAMEBUFFER_NO_ATTACHMENT:
return 0;
+ case PIPE_CAP_SHADER_BUFFER_OFFSET_ALIGNMENT:
+ return 4;
}
/* should only get here on unhandled cases */
debug_printf("Unexpected PIPE_CAP %d query\n", param);
diff --git a/src/gallium/drivers/softpipe/sp_state.h b/src/gallium/drivers/softpipe/sp_state.h
index 570bc549cc4..2fc48ab13d8 100644
--- a/src/gallium/drivers/softpipe/sp_state.h
+++ b/src/gallium/drivers/softpipe/sp_state.h
@@ -57,6 +57,7 @@
struct tgsi_sampler;
struct tgsi_image;
+struct tgsi_buffer;
struct tgsi_exec_machine;
struct vertex_info;
@@ -83,7 +84,8 @@ struct sp_fragment_shader_variant
void (*prepare)(const struct sp_fragment_shader_variant *shader,
struct tgsi_exec_machine *machine,
struct tgsi_sampler *sampler,
- struct tgsi_image *image);
+ struct tgsi_image *image,
+ struct tgsi_buffer *buffer);
unsigned (*run)(const struct sp_fragment_shader_variant *shader,
struct tgsi_exec_machine *machine,
diff --git a/src/gallium/drivers/softpipe/sp_state_derived.c b/src/gallium/drivers/softpipe/sp_state_derived.c
index 65679e73515..4ce9d95bc6e 100644
--- a/src/gallium/drivers/softpipe/sp_state_derived.c
+++ b/src/gallium/drivers/softpipe/sp_state_derived.c
@@ -344,7 +344,8 @@ update_fragment_shader(struct softpipe_context *softpipe, unsigned prim)
softpipe->fs_machine,
(struct tgsi_sampler *) softpipe->
tgsi.sampler[PIPE_SHADER_FRAGMENT],
- (struct tgsi_image *)softpipe->tgsi.image[PIPE_SHADER_FRAGMENT]);
+ (struct tgsi_image *)softpipe->tgsi.image[PIPE_SHADER_FRAGMENT],
+ (struct tgsi_buffer *)softpipe->tgsi.buffer[PIPE_SHADER_FRAGMENT]);
}
else {
softpipe->fs_variant = NULL;
diff --git a/src/gallium/drivers/softpipe/sp_state_image.c b/src/gallium/drivers/softpipe/sp_state_image.c
index 8909fa26864..5947c934e86 100644
--- a/src/gallium/drivers/softpipe/sp_state_image.c
+++ b/src/gallium/drivers/softpipe/sp_state_image.c
@@ -24,6 +24,7 @@
#include "sp_context.h"
#include "sp_state.h"
#include "sp_image.h"
+#include "sp_buffer.h"
static void softpipe_set_shader_images(struct pipe_context *pipe,
unsigned shader,
@@ -51,7 +52,34 @@ static void softpipe_set_shader_images(struct pipe_context *pipe,
}
}
+static void softpipe_set_shader_buffers(struct pipe_context *pipe,
+ unsigned shader,
+ unsigned start,
+ unsigned num,
+ struct pipe_shader_buffer *buffers)
+{
+ struct softpipe_context *softpipe = softpipe_context(pipe);
+ unsigned i;
+ assert(shader < PIPE_SHADER_TYPES);
+ assert(start + num <= Elements(softpipe->buffers[shader]));
+
+ /* set the new images */
+ for (i = 0; i < num; i++) {
+ int idx = start + i;
+
+ if (buffers) {
+ pipe_resource_reference(&softpipe->tgsi.buffer[shader]->sp_bview[idx].buffer, buffers[i].buffer);
+ softpipe->tgsi.buffer[shader]->sp_bview[idx] = buffers[i];
+ }
+ else {
+ pipe_resource_reference(&softpipe->tgsi.buffer[shader]->sp_bview[idx].buffer, NULL);
+ memset(&softpipe->tgsi.buffer[shader]->sp_bview[idx], 0, sizeof(struct pipe_shader_buffer));
+ }
+ }
+}
+
void softpipe_init_image_funcs(struct pipe_context *pipe)
{
pipe->set_shader_images = softpipe_set_shader_images;
+ pipe->set_shader_buffers = softpipe_set_shader_buffers;
}