gallium: Implement 2D constant buffers for fragment shader in softpipe.

6 files changed, 39 insertions, 23 deletions

diff --git a/src/gallium/drivers/softpipe/sp_context.c b/src/gallium/drivers/softpipe/sp_context.c
index 73e075f0d88..a3a7825aa18 100644
--- a/src/gallium/drivers/softpipe/sp_context.c
+++ b/src/gallium/drivers/softpipe/sp_context.c
@@ -111,9 +111,13 @@ softpipe_destroy( struct pipe_context *pipe )
       pipe_texture_reference(&softpipe->vertex_textures[i], NULL);
    }
 
-   for (i = 0; i < Elements(softpipe->constants); i++) {
-      if (softpipe->constants[i]) {
-         pipe_buffer_reference(&softpipe->constants[i], NULL);
+   for (i = 0; i < PIPE_SHADER_TYPES; i++) {
+      uint j;
+
+      for (j = 0; j < PIPE_MAX_CONSTANT; j++) {
+         if (softpipe->constants[i][j]) {
+            pipe_buffer_reference(&softpipe->constants[i][j], NULL);
+         }
       }
    }
 
diff --git a/src/gallium/drivers/softpipe/sp_context.h b/src/gallium/drivers/softpipe/sp_context.h
index da673c57ada..f19b3cd5be2 100644
--- a/src/gallium/drivers/softpipe/sp_context.h
+++ b/src/gallium/drivers/softpipe/sp_context.h
@@ -63,7 +63,7 @@ struct softpipe_context {
    /** Other rendering state */
    struct pipe_blend_color blend_color;
    struct pipe_clip_state clip;
-   struct pipe_buffer *constants[PIPE_SHADER_TYPES];
+   struct pipe_buffer *constants[PIPE_SHADER_TYPES][PIPE_MAX_CONSTANT];
    struct pipe_framebuffer_state framebuffer;
    struct pipe_poly_stipple poly_stipple;
    struct pipe_scissor_state scissor;
@@ -92,7 +92,7 @@ struct softpipe_context {
    ubyte *mapped_vbuffer[PIPE_MAX_ATTRIBS];
 
    /** Mapped constant buffers */
-   void *mapped_constants[PIPE_SHADER_TYPES];
+   void *mapped_constants[PIPE_SHADER_TYPES][PIPE_MAX_CONSTANT];
 
    /** Vertex format */
    struct vertex_info vertex_info;
diff --git a/src/gallium/drivers/softpipe/sp_draw_arrays.c b/src/gallium/drivers/softpipe/sp_draw_arrays.c
index 03b58d2fb72..cbb9631fa53 100644
--- a/src/gallium/drivers/softpipe/sp_draw_arrays.c
+++ b/src/gallium/drivers/softpipe/sp_draw_arrays.c
@@ -52,26 +52,32 @@ softpipe_map_constant_buffers(struct softpipe_context *sp)
    uint i, vssize, gssize;
 
    for (i = 0; i < PIPE_SHADER_TYPES; i++) {
-      if (sp->constants[i] && sp->constants[i]->size)
-         sp->mapped_constants[i] = ws->buffer_map(ws, sp->constants[i],
-                                                  PIPE_BUFFER_USAGE_CPU_READ);
+      uint j;
+
+      for (j = 0; j < PIPE_MAX_CONSTANT; j++) {
+         if (sp->constants[i][j] && sp->constants[i][j]->size) {
+            sp->mapped_constants[i][j] = ws->buffer_map(ws,
+                                                        sp->constants[i][j],
+                                                        PIPE_BUFFER_USAGE_CPU_READ);
+         }
+      }
    }
 
-   if (sp->constants[PIPE_SHADER_VERTEX])
-      vssize = sp->constants[PIPE_SHADER_VERTEX]->size;
+   if (sp->constants[PIPE_SHADER_VERTEX][0])
+      vssize = sp->constants[PIPE_SHADER_VERTEX][0]->size;
    else
       vssize = 0;
 
-   if (sp->constants[PIPE_SHADER_GEOMETRY])
-      gssize = sp->constants[PIPE_SHADER_GEOMETRY]->size;
+   if (sp->constants[PIPE_SHADER_GEOMETRY][0])
+      gssize = sp->constants[PIPE_SHADER_GEOMETRY][0]->size;
    else
       gssize = 0;
 
    draw_set_mapped_constant_buffer(sp->draw, PIPE_SHADER_VERTEX,
-                                   sp->mapped_constants[PIPE_SHADER_VERTEX],
+                                   sp->mapped_constants[PIPE_SHADER_VERTEX][0],
                                    vssize);
    draw_set_mapped_constant_buffer(sp->draw, PIPE_SHADER_GEOMETRY,
-                                   sp->mapped_constants[PIPE_SHADER_GEOMETRY],
+                                   sp->mapped_constants[PIPE_SHADER_GEOMETRY][0],
                                    gssize);
 }
 
@@ -91,9 +97,14 @@ softpipe_unmap_constant_buffers(struct softpipe_context *sp)
    draw_set_mapped_constant_buffer(sp->draw, PIPE_SHADER_GEOMETRY, NULL, 0);
 
    for (i = 0; i < PIPE_SHADER_TYPES; i++) {
-      if (sp->constants[i] && sp->constants[i]->size)
-         ws->buffer_unmap(ws, sp->constants[i]);
-      sp->mapped_constants[i] = NULL;
+      uint j;
+
+      for (j = 0; j < PIPE_MAX_CONSTANT; j++) {
+         if (sp->constants[i][j] && sp->constants[i][j]->size) {
+            ws->buffer_unmap(ws, sp->constants[i][j]);
+         }
+         sp->mapped_constants[i][j] = NULL;
+      }
    }
 }
 
diff --git a/src/gallium/drivers/softpipe/sp_fs_sse.c b/src/gallium/drivers/softpipe/sp_fs_sse.c
index f9129506585..acee2136706 100644
--- a/src/gallium/drivers/softpipe/sp_fs_sse.c
+++ b/src/gallium/drivers/softpipe/sp_fs_sse.c
@@ -135,7 +135,7 @@ fs_sse_run( const struct sp_fragment_shader *base,
    tgsi_set_exec_mask(machine, 1, 1, 1, 1);
 
    shader->func( machine,
-		 machine->Consts,
+                 (const float (*)[4])machine->Consts[0],
                  (const float (*)[4])shader->immediates,
 		 machine->InterpCoefs
 		 /*, &machine->QuadPos*/
diff --git a/src/gallium/drivers/softpipe/sp_quad_fs.c b/src/gallium/drivers/softpipe/sp_quad_fs.c
index e799df136ed..9c497073c23 100644
--- a/src/gallium/drivers/softpipe/sp_quad_fs.c
+++ b/src/gallium/drivers/softpipe/sp_quad_fs.c
@@ -107,10 +107,11 @@ shade_quads(struct quad_stage *qs,
    struct quad_shade_stage *qss = quad_shade_stage( qs );
    struct softpipe_context *softpipe = qs->softpipe;
    struct tgsi_exec_machine *machine = qss->machine;
-
    unsigned i, pass = 0;
-   
-   machine->Consts = softpipe->mapped_constants[PIPE_SHADER_FRAGMENT];
+
+   for (i = 0; i < PIPE_MAX_CONSTANT; i++) {
+      machine->Consts[i] = softpipe->mapped_constants[PIPE_SHADER_FRAGMENT][i];
+   }
    machine->InterpCoefs = quads[0]->coef;
 
    for (i = 0; i < nr; i++) {
diff --git a/src/gallium/drivers/softpipe/sp_state_fs.c b/src/gallium/drivers/softpipe/sp_state_fs.c
index b7ed4441b43..50ed51661ae 100644
--- a/src/gallium/drivers/softpipe/sp_state_fs.c
+++ b/src/gallium/drivers/softpipe/sp_state_fs.c
@@ -164,12 +164,12 @@ softpipe_set_constant_buffer(struct pipe_context *pipe,
    struct softpipe_context *softpipe = softpipe_context(pipe);
 
    assert(shader < PIPE_SHADER_TYPES);
-   assert(index == 0);
+   assert(index < PIPE_MAX_CONSTANT);
 
    draw_flush(softpipe->draw);
 
    /* note: reference counting */
-   pipe_buffer_reference(&softpipe->constants[shader], buf);
+   pipe_buffer_reference(&softpipe->constants[shader][index], buf);
 
    softpipe->dirty |= SP_NEW_CONSTANTS;
 }