i965: Resolve GCC sign-compare warning.
[mesa.git] / src / mesa / drivers / dri / i965 / brw_wm_state.c
index c820ce48c2947bf132173581b5d432b83880b213..cd0b56ba60c1a1a2a1007f9019f02c0cd85acd9c 100644 (file)
@@ -1,8 +1,8 @@
 /*
  Copyright (C) Intel Corp.  2006.  All Rights Reserved.
- Intel funded Tungsten Graphics (http://www.tungstengraphics.com) to
+ Intel funded Tungsten Graphics to
  develop this 3D driver.
+
  Permission is hereby granted, free of charge, to any person obtaining
  a copy of this software and associated documentation files (the
  "Software"), to deal in the Software without restriction, including
  distribute, sublicense, and/or sell copies of the Software, and to
  permit persons to whom the Software is furnished to do so, subject to
  the following conditions:
+
  The above copyright notice and this permission notice (including the
  next paragraph) shall be included in all copies or substantial
  portions of the Software.
+
  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
  LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
  **********************************************************************/
  /*
   * Authors:
-  *   Keith Whitwell <keith@tungstengraphics.com>
+  *   Keith Whitwell <keithw@vmware.com>
   */
-                   
+
 
 
 #include "intel_fbo.h"
 bool
 brw_color_buffer_write_enabled(struct brw_context *brw)
 {
-   struct gl_context *ctx = &brw->intel.ctx;
+   struct gl_context *ctx = &brw->ctx;
+   /* BRW_NEW_FRAGMENT_PROGRAM */
    const struct gl_fragment_program *fp = brw->fragment_program;
-   int i;
+   unsigned i;
 
    /* _NEW_BUFFERS */
    for (i = 0; i < ctx->DrawBuffer->_NumColorDrawBuffers; i++) {
@@ -71,91 +72,110 @@ brw_color_buffer_write_enabled(struct brw_context *brw)
  * Setup wm hardware state.  See page 225 of Volume 2
  */
 static void
-brw_prepare_wm_unit(struct brw_context *brw)
+brw_upload_wm_unit(struct brw_context *brw)
 {
-   struct intel_context *intel = &brw->intel;
-   struct gl_context *ctx = &intel->ctx;
+   struct gl_context *ctx = &brw->ctx;
+   /* BRW_NEW_FRAGMENT_PROGRAM */
    const struct gl_fragment_program *fp = brw->fragment_program;
+   /* BRW_NEW_FS_PROG_DATA */
+   const struct brw_wm_prog_data *prog_data = brw->wm.prog_data;
    struct brw_wm_unit_state *wm;
 
    wm = brw_state_batch(brw, AUB_TRACE_WM_STATE,
-                       sizeof(*wm), 32, &brw->wm.state_offset);
+                       sizeof(*wm), 32, &brw->wm.base.state_offset);
    memset(wm, 0, sizeof(*wm));
 
-   if (brw->wm.prog_data->prog_offset_16) {
+   if (prog_data->prog_offset_16) {
       /* These two fields should be the same pre-gen6, which is why we
        * only have one hardware field to program for both dispatch
        * widths.
        */
-      assert(brw->wm.prog_data->first_curbe_grf ==
-            brw->wm.prog_data->first_curbe_grf_16);
+      assert(prog_data->base.dispatch_grf_start_reg ==
+            prog_data->dispatch_grf_start_reg_16);
    }
 
-   /* BRW_NEW_PROGRAM_CACHE | CACHE_NEW_WM_PROG */
-   wm->thread0.grf_reg_count = brw->wm.prog_data->reg_blocks;
-   wm->wm9.grf_reg_count_2 = brw->wm.prog_data->reg_blocks_16;
-
-   wm->thread0.kernel_start_pointer =
-      brw_program_reloc(brw,
-                       brw->wm.state_offset +
-                       offsetof(struct brw_wm_unit_state, thread0),
-                       brw->wm.prog_offset +
-                       (wm->thread0.grf_reg_count << 1)) >> 6;
-
-   wm->wm9.kernel_start_pointer_2 =
-      brw_program_reloc(brw,
-                       brw->wm.state_offset +
-                       offsetof(struct brw_wm_unit_state, wm9),
-                       brw->wm.prog_offset +
-                       brw->wm.prog_data->prog_offset_16 +
-                       (wm->wm9.grf_reg_count_2 << 1)) >> 6;
+   /* BRW_NEW_PROGRAM_CACHE | BRW_NEW_FS_PROG_DATA */
+   if (prog_data->no_8) {
+      wm->wm5.enable_16_pix = 1;
+      wm->thread0.grf_reg_count = prog_data->reg_blocks_16;
+      wm->thread0.kernel_start_pointer =
+         brw_program_reloc(brw,
+                           brw->wm.base.state_offset +
+                           offsetof(struct brw_wm_unit_state, thread0),
+                           brw->wm.base.prog_offset +
+                           prog_data->prog_offset_16 +
+                           (prog_data->reg_blocks_16 << 1)) >> 6;
+
+   } else {
+      wm->thread0.grf_reg_count = prog_data->reg_blocks;
+      wm->wm9.grf_reg_count_2 = prog_data->reg_blocks_16;
+
+      wm->wm5.enable_8_pix = 1;
+      if (prog_data->prog_offset_16)
+         wm->wm5.enable_16_pix = 1;
+
+      wm->thread0.kernel_start_pointer =
+         brw_program_reloc(brw,
+                           brw->wm.base.state_offset +
+                           offsetof(struct brw_wm_unit_state, thread0),
+                           brw->wm.base.prog_offset +
+                           (wm->thread0.grf_reg_count << 1)) >> 6;
+
+      wm->wm9.kernel_start_pointer_2 =
+         brw_program_reloc(brw,
+                           brw->wm.base.state_offset +
+                           offsetof(struct brw_wm_unit_state, wm9),
+                           brw->wm.base.prog_offset +
+                           prog_data->prog_offset_16 +
+                           (wm->wm9.grf_reg_count_2 << 1)) >> 6;
+   }
 
    wm->thread1.depth_coef_urb_read_offset = 1;
-   wm->thread1.floating_point_mode = BRW_FLOATING_POINT_NON_IEEE_754;
+   if (prog_data->base.use_alt_mode)
+      wm->thread1.floating_point_mode = BRW_FLOATING_POINT_NON_IEEE_754;
+   else
+      wm->thread1.floating_point_mode = BRW_FLOATING_POINT_IEEE_754;
 
-   if (intel->gen == 5)
-      wm->thread1.binding_table_entry_count = 0; /* hardware requirement */
-   else {
-      /* BRW_NEW_NR_SURFACES */
-      wm->thread1.binding_table_entry_count = brw->wm.nr_surfaces;
-   }
+   wm->thread1.binding_table_entry_count =
+      prog_data->base.binding_table.size_bytes / 4;
 
-   if (brw->wm.prog_data->total_scratch != 0) {
+   if (prog_data->base.total_scratch != 0) {
       wm->thread2.scratch_space_base_pointer =
-        brw->wm.scratch_bo->offset >> 10; /* reloc */
+        brw->wm.base.scratch_bo->offset64 >> 10; /* reloc */
       wm->thread2.per_thread_scratch_space =
-        ffs(brw->wm.prog_data->total_scratch) - 11;
+        ffs(prog_data->base.total_scratch) - 11;
    } else {
       wm->thread2.scratch_space_base_pointer = 0;
       wm->thread2.per_thread_scratch_space = 0;
    }
 
-   wm->thread3.dispatch_grf_start_reg = brw->wm.prog_data->first_curbe_grf;
-   wm->thread3.urb_entry_read_length = brw->wm.prog_data->urb_read_length;
+   wm->thread3.dispatch_grf_start_reg =
+      prog_data->base.dispatch_grf_start_reg;
+   wm->thread3.urb_entry_read_length =
+      prog_data->num_varying_inputs * 2;
    wm->thread3.urb_entry_read_offset = 0;
    wm->thread3.const_urb_entry_read_length =
-      brw->wm.prog_data->curb_read_length;
+      prog_data->base.curb_read_length;
    /* BRW_NEW_CURBE_OFFSETS */
    wm->thread3.const_urb_entry_read_offset = brw->curbe.wm_start * 2;
 
-   if (intel->gen == 5)
+   if (brw->gen == 5)
       wm->wm4.sampler_count = 0; /* hardware requirement */
    else {
-      /* CACHE_NEW_SAMPLER */
-      wm->wm4.sampler_count = (brw->wm.sampler_count + 1) / 4;
+      wm->wm4.sampler_count = (brw->wm.base.sampler_count + 1) / 4;
    }
 
-   if (brw->wm.sampler_count) {
-      /* reloc */
-      wm->wm4.sampler_state_pointer = (intel->batch.bo->offset +
-                                      brw->wm.sampler_offset) >> 5;
+   if (brw->wm.base.sampler_count) {
+      /* BRW_NEW_SAMPLER_STATE_TABLE - reloc */
+      wm->wm4.sampler_state_pointer = (brw->batch.bo->offset64 +
+                                      brw->wm.base.sampler_offset) >> 5;
    } else {
       wm->wm4.sampler_state_pointer = 0;
    }
 
    /* BRW_NEW_FRAGMENT_PROGRAM */
    wm->wm5.program_uses_depth = (fp->Base.InputsRead &
-                                (1 << FRAG_ATTRIB_WPOS)) != 0;
+                                (1 << VARYING_SLOT_POS)) != 0;
    wm->wm5.program_computes_depth = (fp->Base.OutputsWritten &
                                     BITFIELD64_BIT(FRAG_RESULT_DEPTH)) != 0;
    /* _NEW_BUFFERS
@@ -166,28 +186,10 @@ brw_prepare_wm_unit(struct brw_context *brw)
       wm->wm5.program_computes_depth = 0;
 
    /* _NEW_COLOR */
-   wm->wm5.program_uses_killpixel = fp->UsesKill || ctx->Color.AlphaEnabled;
-
-
-   /* BRW_NEW_FRAGMENT_PROGRAM
-    *
-    * If using the fragment shader backend, the program is always
-    * 8-wide.  If not, it's always 16.
-    */
-   if (ctx->Shader.CurrentFragmentProgram) {
-      struct brw_shader *shader = (struct brw_shader *)
-        ctx->Shader.CurrentFragmentProgram->_LinkedShaders[MESA_SHADER_FRAGMENT];
-
-      if (shader != NULL && shader->ir != NULL) {
-        wm->wm5.enable_8_pix = 1;
-        if (brw->wm.prog_data->prog_offset_16)
-           wm->wm5.enable_16_pix = 1;
-      }
-   }
-   if (!wm->wm5.enable_8_pix)
-      wm->wm5.enable_16_pix = 1;
+   wm->wm5.program_uses_killpixel =
+      prog_data->uses_kill || ctx->Color.AlphaEnabled;
 
-   wm->wm5.max_threads = brw->wm_max_threads - 1;
+   wm->wm5.max_threads = brw->max_wm_threads - 1;
 
    /* _NEW_BUFFERS | _NEW_COLOR */
    if (brw_color_buffer_write_enabled(brw) ||
@@ -208,7 +210,7 @@ brw_prepare_wm_unit(struct brw_context *brw)
    /* _NEW_POLYGON */
    if (ctx->Polygon.OffsetFill) {
       wm->wm5.depth_offset = 1;
-      /* Something wierd going on with legacy_global_depth_bias,
+      /* Something weird going on with legacy_global_depth_bias,
        * offset_constant, scaling and MRD.  This value passes glean
        * but gives some odd results elsewere (eg. the
        * quad-offset-units test).
@@ -223,52 +225,49 @@ brw_prepare_wm_unit(struct brw_context *brw)
    /* _NEW_LINE */
    wm->wm5.line_stipple = ctx->Line.StippleFlag;
 
-   /* _NEW_DEPTH */
-   if (unlikely(INTEL_DEBUG & DEBUG_STATS) || intel->stats_wm)
+   /* BRW_NEW_STATS_WM */
+   if (unlikely(INTEL_DEBUG & DEBUG_STATS) || brw->stats_wm)
       wm->wm4.stats_enable = 1;
 
    /* Emit scratch space relocation */
-   if (brw->wm.prog_data->total_scratch != 0) {
-      drm_intel_bo_emit_reloc(intel->batch.bo,
-                             brw->wm.state_offset +
+   if (prog_data->base.total_scratch != 0) {
+      drm_intel_bo_emit_reloc(brw->batch.bo,
+                             brw->wm.base.state_offset +
                              offsetof(struct brw_wm_unit_state, thread2),
-                             brw->wm.scratch_bo,
+                             brw->wm.base.scratch_bo,
                              wm->thread2.per_thread_scratch_space,
                              I915_GEM_DOMAIN_RENDER, I915_GEM_DOMAIN_RENDER);
    }
 
    /* Emit sampler state relocation */
-   if (brw->wm.sampler_count != 0) {
-      drm_intel_bo_emit_reloc(intel->batch.bo,
-                             brw->wm.state_offset +
+   if (brw->wm.base.sampler_count != 0) {
+      drm_intel_bo_emit_reloc(brw->batch.bo,
+                             brw->wm.base.state_offset +
                              offsetof(struct brw_wm_unit_state, wm4),
-                             intel->batch.bo, (brw->wm.sampler_offset |
-                                               wm->wm4.stats_enable |
-                                               (wm->wm4.sampler_count << 2)),
+                             brw->batch.bo, (brw->wm.base.sampler_offset |
+                                              wm->wm4.stats_enable |
+                                              (wm->wm4.sampler_count << 2)),
                              I915_GEM_DOMAIN_INSTRUCTION, 0);
    }
 
-   brw->state.dirty.cache |= CACHE_NEW_WM_UNIT;
+   brw->ctx.NewDriverState |= BRW_NEW_GEN4_UNIT_STATE;
 }
 
 const struct brw_tracked_state brw_wm_unit = {
    .dirty = {
-      .mesa = (_NEW_POLYGON | 
-              _NEW_POLYGONSTIPPLE | 
-              _NEW_LINE | 
-              _NEW_COLOR |
-              _NEW_DEPTH |
-              _NEW_BUFFERS),
-
-      .brw = (BRW_NEW_BATCH |
-             BRW_NEW_PROGRAM_CACHE |
-             BRW_NEW_FRAGMENT_PROGRAM |
-             BRW_NEW_CURBE_OFFSETS |
-             BRW_NEW_NR_WM_SURFACES),
-
-      .cache = (CACHE_NEW_WM_PROG |
-               CACHE_NEW_SAMPLER)
+      .mesa = _NEW_BUFFERS |
+              _NEW_COLOR |
+              _NEW_LINE |
+              _NEW_POLYGON |
+              _NEW_POLYGONSTIPPLE,
+      .brw = BRW_NEW_BATCH |
+             BRW_NEW_CURBE_OFFSETS |
+             BRW_NEW_FRAGMENT_PROGRAM |
+             BRW_NEW_FS_PROG_DATA |
+             BRW_NEW_PROGRAM_CACHE |
+             BRW_NEW_SAMPLER_STATE_TABLE |
+             BRW_NEW_STATS_WM,
    },
-   .prepare = brw_prepare_wm_unit,
+   .emit = brw_upload_wm_unit,
 };