st/mesa: move set_prog_affected_state_flags() to st_program.c

We want to use this in the new tgsi shader cache so we move it here
and make it available externally.

Reviewed-by: Nicolai Hähnle <[email protected]>

1 files changed, 141 insertions, 0 deletions

diff --git a/src/mesa/state_tracker/st_program.c b/src/mesa/state_tracker/st_program.c
index b2d15863b19..3795f25a74e 100644
--- a/src/mesa/state_tracker/st_program.c
+++ b/src/mesa/state_tracker/st_program.c
@@ -62,6 +62,147 @@
 
 
 
+static void
+set_affected_state_flags(uint64_t *states,
+                         struct gl_program *prog,
+                         uint64_t new_constants,
+                         uint64_t new_sampler_views,
+                         uint64_t new_samplers,
+                         uint64_t new_images,
+                         uint64_t new_ubos,
+                         uint64_t new_ssbos,
+                         uint64_t new_atomics)
+{
+   if (prog->Parameters->NumParameters)
+      *states |= new_constants;
+
+   if (prog->info.num_textures)
+      *states |= new_sampler_views | new_samplers;
+
+   if (prog->info.num_images)
+      *states |= new_images;
+
+   if (prog->info.num_ubos)
+      *states |= new_ubos;
+
+   if (prog->info.num_ssbos)
+      *states |= new_ssbos;
+
+   if (prog->info.num_abos)
+      *states |= new_atomics;
+}
+
+/**
+ * This determines which states will be updated when the shader is bound.
+ */
+void
+st_set_prog_affected_state_flags(struct gl_program *prog)
+{
+   uint64_t *states;
+
+   switch (prog->info.stage) {
+   case MESA_SHADER_VERTEX:
+      states = &((struct st_vertex_program*)prog)->affected_states;
+
+      *states = ST_NEW_VS_STATE |
+                ST_NEW_RASTERIZER |
+                ST_NEW_VERTEX_ARRAYS;
+
+      set_affected_state_flags(states, prog,
+                               ST_NEW_VS_CONSTANTS,
+                               ST_NEW_VS_SAMPLER_VIEWS,
+                               ST_NEW_RENDER_SAMPLERS,
+                               ST_NEW_VS_IMAGES,
+                               ST_NEW_VS_UBOS,
+                               ST_NEW_VS_SSBOS,
+                               ST_NEW_VS_ATOMICS);
+      break;
+
+   case MESA_SHADER_TESS_CTRL:
+      states = &((struct st_tessctrl_program*)prog)->affected_states;
+
+      *states = ST_NEW_TCS_STATE;
+
+      set_affected_state_flags(states, prog,
+                               ST_NEW_TCS_CONSTANTS,
+                               ST_NEW_TCS_SAMPLER_VIEWS,
+                               ST_NEW_RENDER_SAMPLERS,
+                               ST_NEW_TCS_IMAGES,
+                               ST_NEW_TCS_UBOS,
+                               ST_NEW_TCS_SSBOS,
+                               ST_NEW_TCS_ATOMICS);
+      break;
+
+   case MESA_SHADER_TESS_EVAL:
+      states = &((struct st_tesseval_program*)prog)->affected_states;
+
+      *states = ST_NEW_TES_STATE |
+                ST_NEW_RASTERIZER;
+
+      set_affected_state_flags(states, prog,
+                               ST_NEW_TES_CONSTANTS,
+                               ST_NEW_TES_SAMPLER_VIEWS,
+                               ST_NEW_RENDER_SAMPLERS,
+                               ST_NEW_TES_IMAGES,
+                               ST_NEW_TES_UBOS,
+                               ST_NEW_TES_SSBOS,
+                               ST_NEW_TES_ATOMICS);
+      break;
+
+   case MESA_SHADER_GEOMETRY:
+      states = &((struct st_geometry_program*)prog)->affected_states;
+
+      *states = ST_NEW_GS_STATE |
+                ST_NEW_RASTERIZER;
+
+      set_affected_state_flags(states, prog,
+                               ST_NEW_GS_CONSTANTS,
+                               ST_NEW_GS_SAMPLER_VIEWS,
+                               ST_NEW_RENDER_SAMPLERS,
+                               ST_NEW_GS_IMAGES,
+                               ST_NEW_GS_UBOS,
+                               ST_NEW_GS_SSBOS,
+                               ST_NEW_GS_ATOMICS);
+      break;
+
+   case MESA_SHADER_FRAGMENT:
+      states = &((struct st_fragment_program*)prog)->affected_states;
+
+      /* gl_FragCoord and glDrawPixels always use constants. */
+      *states = ST_NEW_FS_STATE |
+                ST_NEW_SAMPLE_SHADING |
+                ST_NEW_FS_CONSTANTS;
+
+      set_affected_state_flags(states, prog,
+                               ST_NEW_FS_CONSTANTS,
+                               ST_NEW_FS_SAMPLER_VIEWS,
+                               ST_NEW_RENDER_SAMPLERS,
+                               ST_NEW_FS_IMAGES,
+                               ST_NEW_FS_UBOS,
+                               ST_NEW_FS_SSBOS,
+                               ST_NEW_FS_ATOMICS);
+      break;
+
+   case MESA_SHADER_COMPUTE:
+      states = &((struct st_compute_program*)prog)->affected_states;
+
+      *states = ST_NEW_CS_STATE;
+
+      set_affected_state_flags(states, prog,
+                               ST_NEW_CS_CONSTANTS,
+                               ST_NEW_CS_SAMPLER_VIEWS,
+                               ST_NEW_CS_SAMPLERS,
+                               ST_NEW_CS_IMAGES,
+                               ST_NEW_CS_UBOS,
+                               ST_NEW_CS_SSBOS,
+                               ST_NEW_CS_ATOMICS);
+      break;
+
+   default:
+      unreachable("unhandled shader stage");
+   }
+}
+
 /**
  * Delete a vertex program variant.  Note the caller must unlink
  * the variant from the linked list.