glsl: add ir_emit_vertex and ir_end_primitive instruction types
[mesa.git] / src / mesa / state_tracker / st_atom_constbuf.c
index 77153889b68b1b36ac699436ebbecc30aaa38b2d..723ab561cfd928e9688922bf37dc4ee2cb9af9a9 100644 (file)
  */
 
 #include "main/imports.h"
-#include "shader/prog_parameter.h"
-#include "shader/prog_print.h"
+#include "program/prog_parameter.h"
+#include "program/prog_print.h"
 
 #include "pipe/p_context.h"
 #include "pipe/p_defines.h"
-#include "pipe/p_inlines.h"
+#include "util/u_inlines.h"
+#include "util/u_upload_mgr.h"
+#include "cso_cache/cso_context.h"
 
 #include "st_debug.h"
 #include "st_context.h"
 #include "st_atom.h"
 #include "st_atom_constbuf.h"
 #include "st_program.h"
-#include "st_inlines.h"
-
+#include "st_cb_bufferobjects.h"
 
 /**
  * Pass the given program parameters to the graphics pipe as a
@@ -56,43 +57,57 @@ void st_upload_constants( struct st_context *st,
                           struct gl_program_parameter_list *params,
                           unsigned shader_type)
 {
-   struct pipe_context *pipe = st->pipe;
-   struct pipe_constant_buffer *cbuf = &st->state.constants[shader_type];
-
    assert(shader_type == PIPE_SHADER_VERTEX ||
-          shader_type == PIPE_SHADER_FRAGMENT);
+          shader_type == PIPE_SHADER_FRAGMENT ||
+          shader_type == PIPE_SHADER_GEOMETRY);
 
    /* update constants */
    if (params && params->NumParameters) {
+      struct pipe_constant_buffer cb;
       const uint paramBytes = params->NumParameters * sizeof(GLfloat) * 4;
 
+      /* Update the constants which come from fixed-function state, such as
+       * transformation matrices, fog factors, etc.  The rest of the values in
+       * the parameters list are explicitly set by the user with glUniform,
+       * glProgramParameter(), etc.
+       */
       _mesa_load_state_parameters(st->ctx, params);
 
       /* We always need to get a new buffer, to keep the drivers simple and
        * avoid gratuitous rendering synchronization.
+       * Let's use a user buffer to avoid an unnecessary copy.
        */
-      pipe_buffer_reference(&cbuf->buffer, NULL );
-      cbuf->buffer = pipe_buffer_create(pipe->screen, 16,
-                                        PIPE_BUFFER_USAGE_CONSTANT,
-                                       paramBytes );
+      if (st->constbuf_uploader) {
+         cb.buffer = NULL;
+         cb.user_buffer = NULL;
+         u_upload_data(st->constbuf_uploader, 0, paramBytes,
+                       params->ParameterValues, &cb.buffer_offset, &cb.buffer);
+         u_upload_unmap(st->constbuf_uploader);
+      } else {
+         cb.buffer = NULL;
+         cb.user_buffer = params->ParameterValues;
+         cb.buffer_offset = 0;
+      }
+      cb.buffer_size = paramBytes;
 
       if (ST_DEBUG & DEBUG_CONSTANTS) {
-        debug_printf("%s(shader=%d, numParams=%d, stateFlags=0x%x)\n", 
+         debug_printf("%s(shader=%d, numParams=%d, stateFlags=0x%x)\n",
                       __FUNCTION__, shader_type, params->NumParameters,
                       params->StateFlags);
          _mesa_print_parameter_list(params);
       }
 
-      /* load Mesa constants into the constant buffer */
-      if (cbuf->buffer)
-         st_no_flush_pipe_buffer_write(st, cbuf->buffer,
-                                      0, paramBytes,
-                                      params->ParameterValues);
+      cso_set_constant_buffer(st->cso_context, shader_type, 0, &cb);
+      pipe_resource_reference(&cb.buffer, NULL);
 
-      st->pipe->set_constant_buffer(st->pipe, shader_type, 0, cbuf);
+      st->state.constants[shader_type].ptr = params->ParameterValues;
+      st->state.constants[shader_type].size = paramBytes;
    }
-   else {
-      st->constants.tracked_state[shader_type].dirty.mesa = 0x0;
+   else if (st->state.constants[shader_type].ptr) {
+      /* Unbind. */
+      st->state.constants[shader_type].ptr = NULL;
+      st->state.constants[shader_type].size = 0;
+      cso_set_constant_buffer(st->cso_context, shader_type, 0, NULL);
    }
 }
 
@@ -112,7 +127,7 @@ static void update_vs_constants(struct st_context *st )
 const struct st_tracked_state st_update_vs_constants = {
    "st_update_vs_constants",                           /* name */
    {                                                   /* dirty */
-      (_NEW_PROGRAM | _NEW_PROGRAM_CONSTANTS),          /* mesa */
+      _NEW_PROGRAM_CONSTANTS,                           /* mesa */
       ST_NEW_VERTEX_PROGRAM,                           /* st */
    },
    update_vs_constants                                 /* update */
@@ -135,9 +150,108 @@ static void update_fs_constants(struct st_context *st )
 const struct st_tracked_state st_update_fs_constants = {
    "st_update_fs_constants",                           /* name */
    {                                                   /* dirty */
-      (_NEW_PROGRAM | _NEW_PROGRAM_CONSTANTS),          /* mesa */
+      _NEW_PROGRAM_CONSTANTS,                           /* mesa */
       ST_NEW_FRAGMENT_PROGRAM,                         /* st */
    },
    update_fs_constants                                 /* update */
 };
 
+/* Geometry shader:
+ */
+static void update_gs_constants(struct st_context *st )
+{
+   struct st_geometry_program *gp = st->gp;
+   struct gl_program_parameter_list *params;
+
+   if (gp) {
+      params = gp->Base.Base.Parameters;
+      st_upload_constants( st, params, PIPE_SHADER_GEOMETRY );
+   }
+}
+
+const struct st_tracked_state st_update_gs_constants = {
+   "st_update_gs_constants",                           /* name */
+   {                                                   /* dirty */
+      _NEW_PROGRAM_CONSTANTS,                           /* mesa */
+      ST_NEW_GEOMETRY_PROGRAM,                         /* st */
+   },
+   update_gs_constants                                 /* update */
+};
+
+static void st_bind_ubos(struct st_context *st,
+                           struct gl_shader *shader,
+                           unsigned shader_type)
+{
+   unsigned i;
+   struct pipe_constant_buffer cb = { 0 };
+
+   if (!shader)
+      return;
+
+   for (i = 0; i < shader->NumUniformBlocks; i++) {
+      struct gl_uniform_buffer_binding *binding;
+      struct st_buffer_object *st_obj;
+
+      binding = &st->ctx->UniformBufferBindings[shader->UniformBlocks[i].Binding];
+      st_obj = st_buffer_object(binding->BufferObject);
+
+      cb.buffer = st_obj->buffer;
+
+      if (cb.buffer) {
+         cb.buffer_offset = binding->Offset;
+         cb.buffer_size = cb.buffer->width0 - binding->Offset;
+
+         /* AutomaticSize is FALSE if the buffer was set with BindBufferRange.
+          * Take the minimum just to be sure.
+          */
+         if (!binding->AutomaticSize)
+            cb.buffer_size = MIN2(cb.buffer_size, (unsigned) binding->Size);
+      }
+      else {
+         cb.buffer_offset = 0;
+         cb.buffer_size = 0;
+      }
+
+      cso_set_constant_buffer(st->cso_context, shader_type, 1 + i, &cb);
+   }
+}
+
+static void bind_vs_ubos(struct st_context *st)
+{
+   struct gl_shader_program *prog = st->ctx->Shader.CurrentVertexProgram;
+
+   if (!prog)
+      return;
+
+   st_bind_ubos(st, prog->_LinkedShaders[MESA_SHADER_VERTEX], PIPE_SHADER_VERTEX);
+}
+
+const struct st_tracked_state st_bind_vs_ubos = {
+   "st_bind_vs_ubos",
+   {
+      0,
+      ST_NEW_VERTEX_PROGRAM | ST_NEW_UNIFORM_BUFFER,
+   },
+   bind_vs_ubos
+};
+
+static void bind_fs_ubos(struct st_context *st)
+{
+   struct gl_shader_program *prog = st->ctx->Shader.CurrentFragmentProgram;
+
+   if (!prog)
+      return;
+
+   st_bind_ubos(st, prog->_LinkedShaders[MESA_SHADER_FRAGMENT], PIPE_SHADER_FRAGMENT);
+}
+
+const struct st_tracked_state st_bind_fs_ubos = {
+   "st_bind_fs_ubos",
+   {
+      0,
+      ST_NEW_FRAGMENT_PROGRAM | ST_NEW_UNIFORM_BUFFER,
+   },
+   bind_fs_ubos
+};
+
+