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authormarha <marha@users.sourceforge.net>2011-12-17 13:43:14 +0100
committerMarc Haesen <marc@hc-consult.be>2011-12-17 13:43:14 +0100
commitabacebe06d9f3d2fe1b7d256bd86cddbfa592a85 (patch)
treea05bb04105e9dd1cda779071d9ca274b86840c7e /mesalib/src/gallium/auxiliary/util/u_blitter.c
parent47913e82955ec8e2b1ba4d4b145497dede9163b5 (diff)
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libX11 libxtrans mesa xserver git update 17 dec 2011
Diffstat (limited to 'mesalib/src/gallium/auxiliary/util/u_blitter.c')
-rw-r--r--mesalib/src/gallium/auxiliary/util/u_blitter.c105
1 files changed, 103 insertions, 2 deletions
diff --git a/mesalib/src/gallium/auxiliary/util/u_blitter.c b/mesalib/src/gallium/auxiliary/util/u_blitter.c
index f5cc5cb3b..3c501814e 100644
--- a/mesalib/src/gallium/auxiliary/util/u_blitter.c
+++ b/mesalib/src/gallium/auxiliary/util/u_blitter.c
@@ -63,6 +63,7 @@ struct blitter_context_priv
/* Constant state objects. */
/* Vertex shaders. */
void *vs; /**< Vertex shader which passes {pos, generic} to the output.*/
+ void *vs_pos_only; /**< Vertex shader which passes pos to the output.*/
/* Fragment shaders. */
/* The shader at index i outputs color to color buffers 0,1,...,i-1. */
@@ -87,15 +88,18 @@ struct blitter_context_priv
void *dsa_keep_depth_stencil;
void *dsa_keep_depth_write_stencil;
+ /* Vertex elements states. */
void *velem_state;
void *velem_uint_state;
void *velem_sint_state;
+ void *velem_state_readbuf;
/* Sampler state. */
void *sampler_state;
/* Rasterizer state. */
void *rs_state;
+ void *rs_discard_state;
/* Viewport state. */
struct pipe_viewport_state viewport;
@@ -109,6 +113,7 @@ struct blitter_context_priv
boolean has_geometry_shader;
boolean vertex_has_integers;
+ boolean has_stream_out;
};
static void blitter_draw_rectangle(struct blitter_context *blitter,
@@ -148,6 +153,7 @@ struct blitter_context *util_blitter_create(struct pipe_context *pipe)
ctx->base.saved_num_sampler_views = ~0;
ctx->base.saved_num_sampler_states = ~0;
ctx->base.saved_num_vertex_buffers = ~0;
+ ctx->base.saved_num_so_targets = ~0;
ctx->has_geometry_shader =
pipe->screen->get_shader_param(pipe->screen, PIPE_SHADER_GEOMETRY,
@@ -155,6 +161,9 @@ struct blitter_context *util_blitter_create(struct pipe_context *pipe)
ctx->vertex_has_integers =
pipe->screen->get_shader_param(pipe->screen, PIPE_SHADER_VERTEX,
PIPE_SHADER_CAP_INTEGERS);
+ ctx->has_stream_out =
+ pipe->screen->get_param(pipe->screen,
+ PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS) != 0;
/* blend state objects */
memset(&blend, 0, sizeof(blend));
@@ -205,7 +214,12 @@ struct blitter_context *util_blitter_create(struct pipe_context *pipe)
rs_state.flatshade = 1;
ctx->rs_state = pipe->create_rasterizer_state(pipe, &rs_state);
- /* vertex elements state */
+ if (ctx->has_stream_out) {
+ rs_state.rasterizer_discard = 1;
+ ctx->rs_discard_state = pipe->create_rasterizer_state(pipe, &rs_state);
+ }
+
+ /* vertex elements states */
memset(&velem[0], 0, sizeof(velem[0]) * 2);
for (i = 0; i < 2; i++) {
velem[i].src_offset = i * 4 * sizeof(float);
@@ -229,9 +243,14 @@ struct blitter_context *util_blitter_create(struct pipe_context *pipe)
ctx->velem_uint_state = pipe->create_vertex_elements_state(pipe, 2, &velem[0]);
}
+ if (ctx->has_stream_out) {
+ velem[0].src_format = PIPE_FORMAT_R32G32B32A32_FLOAT;
+ ctx->velem_state_readbuf = pipe->create_vertex_elements_state(pipe, 1, &velem[0]);
+ }
+
/* fragment shaders are created on-demand */
- /* vertex shader */
+ /* vertex shaders */
{
const uint semantic_names[] = { TGSI_SEMANTIC_POSITION,
TGSI_SEMANTIC_GENERIC };
@@ -240,6 +259,20 @@ struct blitter_context *util_blitter_create(struct pipe_context *pipe)
util_make_vertex_passthrough_shader(pipe, 2, semantic_names,
semantic_indices);
}
+ if (ctx->has_stream_out) {
+ struct pipe_stream_output_info so;
+ const uint semantic_names[] = { TGSI_SEMANTIC_POSITION };
+ const uint semantic_indices[] = { 0 };
+
+ memset(&so, 0, sizeof(so));
+ so.num_outputs = 1;
+ so.output[0].register_mask = TGSI_WRITEMASK_XYZW;
+ so.stride = 4;
+
+ ctx->vs_pos_only =
+ util_make_vertex_passthrough_shader_with_so(pipe, 1, semantic_names,
+ semantic_indices, &so);
+ }
/* set invariant vertex coordinates */
for (i = 0; i < 4; i++)
@@ -269,12 +302,18 @@ void util_blitter_destroy(struct blitter_context *blitter)
pipe->delete_depth_stencil_alpha_state(pipe, ctx->dsa_keep_depth_write_stencil);
pipe->delete_rasterizer_state(pipe, ctx->rs_state);
+ if (ctx->rs_discard_state)
+ pipe->delete_rasterizer_state(pipe, ctx->rs_discard_state);
pipe->delete_vs_state(pipe, ctx->vs);
+ if (ctx->vs_pos_only)
+ pipe->delete_vs_state(pipe, ctx->vs_pos_only);
pipe->delete_vertex_elements_state(pipe, ctx->velem_state);
if (ctx->vertex_has_integers) {
pipe->delete_vertex_elements_state(pipe, ctx->velem_sint_state);
pipe->delete_vertex_elements_state(pipe, ctx->velem_uint_state);
}
+ if (ctx->velem_state_readbuf)
+ pipe->delete_vertex_elements_state(pipe, ctx->velem_state_readbuf);
for (i = 0; i < PIPE_MAX_TEXTURE_TYPES; i++) {
if (ctx->fs_texfetch_col[i])
@@ -319,6 +358,7 @@ static void blitter_check_saved_vertex_states(struct blitter_context_priv *ctx)
ctx->base.saved_velem_state != INVALID_PTR &&
ctx->base.saved_vs != INVALID_PTR &&
(!ctx->has_geometry_shader || ctx->base.saved_gs != INVALID_PTR) &&
+ (!ctx->has_stream_out || ctx->base.saved_num_so_targets != ~0) &&
ctx->base.saved_rs_state != INVALID_PTR);
}
@@ -354,6 +394,18 @@ static void blitter_restore_vertex_states(struct blitter_context_priv *ctx)
ctx->base.saved_gs = INVALID_PTR;
}
+ /* Stream outputs. */
+ if (ctx->has_stream_out) {
+ pipe->set_stream_output_targets(pipe,
+ ctx->base.saved_num_so_targets,
+ ctx->base.saved_so_targets, ~0);
+
+ for (i = 0; i < ctx->base.saved_num_so_targets; i++)
+ pipe_so_target_reference(&ctx->base.saved_so_targets[i], NULL);
+
+ ctx->base.saved_num_so_targets = ~0;
+ }
+
/* Rasterizer. */
pipe->bind_rasterizer_state(pipe, ctx->base.saved_rs_state);
ctx->base.saved_rs_state = INVALID_PTR;
@@ -1160,3 +1212,52 @@ void util_blitter_custom_depth_stencil(struct blitter_context *blitter,
blitter_restore_fb_state(ctx);
blitter_unset_running_flag(ctx);
}
+
+void util_blitter_copy_buffer(struct blitter_context *blitter,
+ struct pipe_resource *dst,
+ unsigned dstx,
+ struct pipe_resource *src,
+ unsigned srcx,
+ unsigned size)
+{
+ struct blitter_context_priv *ctx = (struct blitter_context_priv*)blitter;
+ struct pipe_context *pipe = ctx->base.pipe;
+ struct pipe_vertex_buffer vb;
+ struct pipe_stream_output_target *so_target;
+
+ /* Drivers not capable of Stream Out should not call this function
+ * in the first place. */
+ assert(ctx->has_stream_out);
+
+ /* Some alignment is required. */
+ if (srcx % 4 != 0 || dstx % 4 != 0 || size % 16 != 0 ||
+ !ctx->has_stream_out) {
+ struct pipe_box box;
+ u_box_1d(srcx, size, &box);
+ util_resource_copy_region(pipe, dst, 0, dstx, 0, 0, src, 0, &box);
+ return;
+ }
+
+ blitter_set_running_flag(ctx);
+ blitter_check_saved_vertex_states(ctx);
+
+ vb.buffer = src;
+ vb.buffer_offset = srcx;
+ vb.stride = 4;
+
+ pipe->set_vertex_buffers(pipe, 1, &vb);
+ pipe->bind_vertex_elements_state(pipe, ctx->velem_state_readbuf);
+ pipe->bind_vs_state(pipe, ctx->vs_pos_only);
+ if (ctx->has_geometry_shader)
+ pipe->bind_gs_state(pipe, NULL);
+ pipe->bind_rasterizer_state(pipe, ctx->rs_discard_state);
+
+ so_target = pipe->create_stream_output_target(pipe, dst, dstx, size);
+ pipe->set_stream_output_targets(pipe, 1, &so_target, 0);
+
+ util_draw_arrays(pipe, PIPE_PRIM_POINTS, 0, size / 16);
+
+ blitter_restore_vertex_states(ctx);
+ blitter_unset_running_flag(ctx);
+ pipe_so_target_reference(&so_target, NULL);
+}