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-rw-r--r--src/gallium/auxiliary/Makefile1
-rw-r--r--src/gallium/auxiliary/SConscript1
-rw-r--r--src/gallium/auxiliary/draw/draw_context.c56
-rw-r--r--src/gallium/auxiliary/draw/draw_context.h12
-rw-r--r--src/gallium/auxiliary/draw/draw_pipe_aaline.c9
-rw-r--r--src/gallium/auxiliary/draw/draw_pipe_aapoint.c8
-rw-r--r--src/gallium/auxiliary/draw/draw_pipe_wide_point.c114
-rw-r--r--src/gallium/auxiliary/draw/draw_private.h17
8 files changed, 137 insertions, 81 deletions
diff --git a/src/gallium/auxiliary/Makefile b/src/gallium/auxiliary/Makefile
index 2de764c4ee3..f05538bbac4 100644
--- a/src/gallium/auxiliary/Makefile
+++ b/src/gallium/auxiliary/Makefile
@@ -8,6 +8,7 @@ C_SOURCES = \
cso_cache/cso_context.c \
cso_cache/cso_hash.c \
draw/draw_context.c \
+ draw/draw_fs.c \
draw/draw_gs.c \
draw/draw_pipe.c \
draw/draw_pipe_aaline.c \
diff --git a/src/gallium/auxiliary/SConscript b/src/gallium/auxiliary/SConscript
index 294df300947..baaa26fea92 100644
--- a/src/gallium/auxiliary/SConscript
+++ b/src/gallium/auxiliary/SConscript
@@ -54,6 +54,7 @@ source = [
'cso_cache/cso_context.c',
'cso_cache/cso_hash.c',
'draw/draw_context.c',
+ 'draw/draw_fs.c',
'draw/draw_gs.c',
'draw/draw_pipe.c',
'draw/draw_pipe_aaline.c',
diff --git a/src/gallium/auxiliary/draw/draw_context.c b/src/gallium/auxiliary/draw/draw_context.c
index 937b0934798..b07de76a498 100644
--- a/src/gallium/auxiliary/draw/draw_context.c
+++ b/src/gallium/auxiliary/draw/draw_context.c
@@ -413,6 +413,42 @@ draw_set_force_passthrough( struct draw_context *draw, boolean enable )
}
+
+/**
+ * Allocate an extra vertex/geometry shader vertex attribute.
+ * This is used by some of the optional draw module stages such
+ * as wide_point which may need to allocate additional generic/texcoord
+ * attributes.
+ */
+int
+draw_alloc_extra_vertex_attrib(struct draw_context *draw,
+ uint semantic_name, uint semantic_index)
+{
+ const int num_outputs = draw_current_shader_outputs(draw);
+ const int n = draw->extra_shader_outputs.num;
+
+ assert(n < Elements(draw->extra_shader_outputs.semantic_name));
+
+ draw->extra_shader_outputs.semantic_name[n] = semantic_name;
+ draw->extra_shader_outputs.semantic_index[n] = semantic_index;
+ draw->extra_shader_outputs.slot[n] = num_outputs + n;
+ draw->extra_shader_outputs.num++;
+
+ return draw->extra_shader_outputs.slot[n];
+}
+
+
+/**
+ * Remove all extra vertex attributes that were allocated with
+ * draw_alloc_extra_vertex_attrib().
+ */
+void
+draw_remove_extra_vertex_attribs(struct draw_context *draw)
+{
+ draw->extra_shader_outputs.num = 0;
+}
+
+
/**
* Ask the draw module for the location/slot of the given vertex attribute in
* a post-transformed vertex.
@@ -446,12 +482,12 @@ draw_find_shader_output(const struct draw_context *draw,
return i;
}
- /* XXX there may be more than one extra vertex attrib.
- * For example, simulated gl_FragCoord and gl_PointCoord.
- */
- if (draw->extra_shader_outputs.semantic_name == semantic_name &&
- draw->extra_shader_outputs.semantic_index == semantic_index) {
- return draw->extra_shader_outputs.slot;
+ /* Search the extra vertex attributes */
+ for (i = 0; i < draw->extra_shader_outputs.num; i++) {
+ if (draw->extra_shader_outputs.semantic_name[i] == semantic_name &&
+ draw->extra_shader_outputs.semantic_index[i] == semantic_index) {
+ return draw->extra_shader_outputs.slot[i];
+ }
}
return 0;
@@ -470,16 +506,18 @@ draw_find_shader_output(const struct draw_context *draw,
uint
draw_num_shader_outputs(const struct draw_context *draw)
{
- uint count = draw->vs.vertex_shader->info.num_outputs;
+ uint count;
/* If a geometry shader is present, its outputs go to the
* driver, else the vertex shader's outputs.
*/
if (draw->gs.geometry_shader)
count = draw->gs.geometry_shader->info.num_outputs;
+ else
+ count = draw->vs.vertex_shader->info.num_outputs;
+
+ count += draw->extra_shader_outputs.num;
- if (draw->extra_shader_outputs.slot > 0)
- count++;
return count;
}
diff --git a/src/gallium/auxiliary/draw/draw_context.h b/src/gallium/auxiliary/draw/draw_context.h
index 4f0d30123a4..1f27cbf488a 100644
--- a/src/gallium/auxiliary/draw/draw_context.h
+++ b/src/gallium/auxiliary/draw/draw_context.h
@@ -46,6 +46,7 @@ struct draw_context;
struct draw_stage;
struct draw_vertex_shader;
struct draw_geometry_shader;
+struct draw_fragment_shader;
struct tgsi_sampler;
#define DRAW_MAX_TEXTURE_LEVELS 13 /* 4K x 4K for now */
@@ -138,6 +139,17 @@ void draw_delete_vertex_shader(struct draw_context *draw,
/*
+ * Fragment shader functions
+ */
+struct draw_fragment_shader *
+draw_create_fragment_shader(struct draw_context *draw,
+ const struct pipe_shader_state *shader);
+void draw_bind_fragment_shader(struct draw_context *draw,
+ struct draw_fragment_shader *dvs);
+void draw_delete_fragment_shader(struct draw_context *draw,
+ struct draw_fragment_shader *dvs);
+
+/*
* Geometry shader functions
*/
struct draw_geometry_shader *
diff --git a/src/gallium/auxiliary/draw/draw_pipe_aaline.c b/src/gallium/auxiliary/draw/draw_pipe_aaline.c
index eac21110be4..d1aba763098 100644
--- a/src/gallium/auxiliary/draw/draw_pipe_aaline.c
+++ b/src/gallium/auxiliary/draw/draw_pipe_aaline.c
@@ -688,10 +688,9 @@ aaline_first_line(struct draw_stage *stage, struct prim_header *header)
aaline->tex_slot = draw_current_shader_outputs(draw);
aaline->pos_slot = draw_current_shader_position_output(draw);;
- /* advertise the extra post-transformed vertex attribute */
- draw->extra_shader_outputs.semantic_name = TGSI_SEMANTIC_GENERIC;
- draw->extra_shader_outputs.semantic_index = aaline->fs->generic_attrib;
- draw->extra_shader_outputs.slot = aaline->tex_slot;
+ /* allocate the extra post-transformed vertex attribute */
+ (void) draw_alloc_extra_vertex_attrib(draw, TGSI_SEMANTIC_GENERIC,
+ aaline->fs->generic_attrib);
/* how many samplers? */
/* we'll use sampler/texture[pstip->sampler_unit] for the stipple */
@@ -744,7 +743,7 @@ aaline_flush(struct draw_stage *stage, unsigned flags)
draw->suspend_flushing = FALSE;
- draw->extra_shader_outputs.slot = 0;
+ draw_remove_extra_vertex_attribs(draw);
}
diff --git a/src/gallium/auxiliary/draw/draw_pipe_aapoint.c b/src/gallium/auxiliary/draw/draw_pipe_aapoint.c
index d406a86ccb5..5ea552f51c1 100644
--- a/src/gallium/auxiliary/draw/draw_pipe_aapoint.c
+++ b/src/gallium/auxiliary/draw/draw_pipe_aapoint.c
@@ -701,9 +701,9 @@ aapoint_first_point(struct draw_stage *stage, struct prim_header *header)
aapoint->pos_slot = draw_current_shader_position_output(draw);
- draw->extra_shader_outputs.semantic_name = TGSI_SEMANTIC_GENERIC;
- draw->extra_shader_outputs.semantic_index = aapoint->fs->generic_attrib;
- draw->extra_shader_outputs.slot = aapoint->tex_slot;
+ /* allocate the extra post-transformed vertex attribute */
+ (void) draw_alloc_extra_vertex_attrib(draw, TGSI_SEMANTIC_GENERIC,
+ aapoint->fs->generic_attrib);
/* find psize slot in post-transform vertex */
aapoint->psize_slot = -1;
@@ -754,7 +754,7 @@ aapoint_flush(struct draw_stage *stage, unsigned flags)
draw->suspend_flushing = FALSE;
- draw->extra_shader_outputs.slot = 0;
+ draw_remove_extra_vertex_attribs(draw);
}
diff --git a/src/gallium/auxiliary/draw/draw_pipe_wide_point.c b/src/gallium/auxiliary/draw/draw_pipe_wide_point.c
index ee2945c7c97..40843c58c20 100644
--- a/src/gallium/auxiliary/draw/draw_pipe_wide_point.c
+++ b/src/gallium/auxiliary/draw/draw_pipe_wide_point.c
@@ -57,26 +57,24 @@
#include "util/u_memory.h"
#include "pipe/p_defines.h"
#include "pipe/p_shader_tokens.h"
+#include "draw_fs.h"
#include "draw_vs.h"
#include "draw_pipe.h"
struct widepoint_stage {
- struct draw_stage stage;
+ struct draw_stage stage; /**< base class */
float half_point_size;
float xbias;
float ybias;
- uint texcoord_slot[PIPE_MAX_SHADER_OUTPUTS];
- uint texcoord_enable[PIPE_MAX_SHADER_OUTPUTS];
- uint num_texcoords;
- uint texcoord_mode;
+ /** for automatic texcoord generation/replacement */
+ uint num_texcoord_gen;
+ uint texcoord_gen_slot[PIPE_MAX_SHADER_OUTPUTS];
int psize_slot;
-
- int point_coord_fs_input; /**< input for pointcoord */
};
@@ -96,30 +94,20 @@ widepoint_stage( struct draw_stage *stage )
static void set_texcoords(const struct widepoint_stage *wide,
struct vertex_header *v, const float tc[4])
{
+ const struct draw_context *draw = wide->stage.draw;
+ const struct pipe_rasterizer_state *rast = draw->rasterizer;
+ const uint texcoord_mode = rast->sprite_coord_mode;
uint i;
- for (i = 0; i < wide->num_texcoords; i++) {
- if (wide->texcoord_enable[i]) {
- uint j = wide->texcoord_slot[i];
- v->data[j][0] = tc[0];
- if (wide->texcoord_mode == PIPE_SPRITE_COORD_LOWER_LEFT)
- v->data[j][1] = 1.0f - tc[1];
- else
- v->data[j][1] = tc[1];
- v->data[j][2] = tc[2];
- v->data[j][3] = tc[3];
- }
- }
- if (wide->point_coord_fs_input >= 0) {
- /* put gl_PointCoord into the extra vertex slot */
- uint slot = wide->stage.draw->extra_shader_outputs.slot;
+ for (i = 0; i < wide->num_texcoord_gen; i++) {
+ const uint slot = wide->texcoord_gen_slot[i];
v->data[slot][0] = tc[0];
- if (wide->texcoord_mode == PIPE_SPRITE_COORD_LOWER_LEFT)
+ if (texcoord_mode == PIPE_SPRITE_COORD_LOWER_LEFT)
v->data[slot][1] = 1.0f - tc[1];
else
v->data[slot][1] = tc[1];
- v->data[slot][2] = 0.0F;
- v->data[slot][3] = 1.0F;
+ v->data[slot][2] = tc[2];
+ v->data[slot][3] = tc[3];
}
}
@@ -201,18 +189,9 @@ static void widepoint_point( struct draw_stage *stage,
}
-static int
-find_pntc_input_attrib(struct draw_context *draw)
-{
- /* Scan the fragment program's input decls to find the pointcoord
- * attribute. The xy components will store the point coord.
- */
- return 0; /* XXX fix this */
-}
-
-
-static void widepoint_first_point( struct draw_stage *stage,
- struct prim_header *header )
+static void
+widepoint_first_point(struct draw_stage *stage,
+ struct prim_header *header)
{
struct widepoint_stage *wide = widepoint_stage(stage);
struct draw_context *draw = stage->draw;
@@ -244,31 +223,45 @@ static void widepoint_first_point( struct draw_stage *stage,
stage->point = draw_pipe_passthrough_point;
}
+ draw_remove_extra_vertex_attribs(draw);
+
if (rast->point_quad_rasterization) {
- /* find vertex shader texcoord outputs */
- const struct draw_vertex_shader *vs = draw->vs.vertex_shader;
- uint i, j = 0;
- wide->texcoord_mode = rast->sprite_coord_mode;
- for (i = 0; i < vs->info.num_outputs; i++) {
- if (vs->info.output_semantic_name[i] == TGSI_SEMANTIC_GENERIC) {
- wide->texcoord_slot[j] = i;
- wide->texcoord_enable[j] = (rast->sprite_coord_enable >> j) & 1;
- j++;
+ const struct draw_fragment_shader *fs = draw->fs.fragment_shader;
+ uint i;
+
+ wide->num_texcoord_gen = 0;
+
+ /* Loop over fragment shader inputs looking for generic inputs
+ * for which bit 'k' in sprite_coord_enable is set.
+ */
+ for (i = 0; i < fs->info.num_inputs; i++) {
+ if (fs->info.input_semantic_name[i] == TGSI_SEMANTIC_GENERIC) {
+ const int generic_index = fs->info.input_semantic_index[i];
+ if (rast->sprite_coord_enable & (1 << generic_index)) {
+ /* OK, this generic attribute needs to be replaced with a
+ * texcoord (see above).
+ */
+ int slot = draw_find_shader_output(draw,
+ TGSI_SEMANTIC_GENERIC,
+ generic_index);
+
+ if (slot > 0) {
+ /* there's already a post-vertex shader attribute
+ * for this fragment shader input attribute.
+ */
+ }
+ else {
+ /* need to allocate a new post-vertex shader attribute */
+ slot = draw_alloc_extra_vertex_attrib(draw,
+ TGSI_SEMANTIC_GENERIC,
+ generic_index);
+ }
+
+ /* add this slot to the texcoord-gen list */
+ wide->texcoord_gen_slot[wide->num_texcoord_gen++] = slot;
+ }
}
}
- wide->num_texcoords = j;
-
- /* find fragment shader PointCoord input */
- wide->point_coord_fs_input = find_pntc_input_attrib(draw);
-
- /* setup extra vp output (point coord implemented as a texcoord) */
- draw->extra_shader_outputs.semantic_name = TGSI_SEMANTIC_GENERIC;
- draw->extra_shader_outputs.semantic_index = 0;
- draw->extra_shader_outputs.slot = draw_current_shader_outputs(draw);
- }
- else {
- wide->point_coord_fs_input = -1;
- draw->extra_shader_outputs.slot = 0;
}
wide->psize_slot = -1;
@@ -295,7 +288,8 @@ static void widepoint_flush( struct draw_stage *stage, unsigned flags )
stage->point = widepoint_first_point;
stage->next->flush( stage->next, flags );
- stage->draw->extra_shader_outputs.slot = 0;
+
+ draw_remove_extra_vertex_attribs(draw);
/* restore original rasterizer state */
if (draw->rast_handle) {
diff --git a/src/gallium/auxiliary/draw/draw_private.h b/src/gallium/auxiliary/draw/draw_private.h
index 362f563ba6a..d417f825a0f 100644
--- a/src/gallium/auxiliary/draw/draw_private.h
+++ b/src/gallium/auxiliary/draw/draw_private.h
@@ -250,6 +250,11 @@ struct draw_context
struct tgsi_sampler **samplers;
} gs;
+ /** Fragment shader state */
+ struct {
+ struct draw_fragment_shader *fragment_shader;
+ } fs;
+
/** Stream output (vertex feedback) state */
struct {
struct pipe_stream_output_state state;
@@ -266,9 +271,10 @@ struct draw_context
/* If a prim stage introduces new vertex attributes, they'll be stored here
*/
struct {
- uint semantic_name;
- uint semantic_index;
- int slot;
+ uint num;
+ uint semantic_name[10];
+ uint semantic_index[10];
+ uint slot[10];
} extra_shader_outputs;
unsigned reduced_prim;
@@ -362,6 +368,11 @@ void draw_gs_destroy( struct draw_context *draw );
uint draw_current_shader_outputs(const struct draw_context *draw);
uint draw_current_shader_position_output(const struct draw_context *draw);
+int draw_alloc_extra_vertex_attrib(struct draw_context *draw,
+ uint semantic_name, uint semantic_index);
+void draw_remove_extra_vertex_attribs(struct draw_context *draw);
+
+
/*******************************************************************************
* Vertex processing (was passthrough) code:
*/
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-25 19:18:09 +0000