From 8e4540ec2a82e72be491bc8fe23c10551d29a96c Mon Sep 17 00:00:00 2001
From: =?utf8?q?St=C3=A9phane=20Marchesin?= <marcheu@chromium.org>
Date: Sun, 22 Jan 2012 02:22:20 -0800
Subject: [PATCH] i915g: Separate declarations and program in the fragment
 program struct.

We need this later to fixup fragment programs properly.
---
 src/gallium/drivers/i915/i915_context.h       |  3 +++
 src/gallium/drivers/i915/i915_fpc_translate.c | 19 ++++++++++++++-----
 src/gallium/drivers/i915/i915_state.c         |  6 ++++++
 src/gallium/drivers/i915/i915_state_emit.c    | 12 ++++++++----
 4 files changed, 31 insertions(+), 9 deletions(-)

diff --git a/src/gallium/drivers/i915/i915_context.h b/src/gallium/drivers/i915/i915_context.h
index e39c7cc137f..b019c9f342a 100644
--- a/src/gallium/drivers/i915/i915_context.h
+++ b/src/gallium/drivers/i915/i915_context.h
@@ -104,6 +104,9 @@ struct i915_fragment_shader
 
    struct draw_fragment_shader *draw_data;
 
+   uint *decl;
+   uint decl_len;
+
    uint *program;
    uint program_len;
 
diff --git a/src/gallium/drivers/i915/i915_fpc_translate.c b/src/gallium/drivers/i915/i915_fpc_translate.c
index 5bfbfa0fa05..a82ad146dfd 100644
--- a/src/gallium/drivers/i915/i915_fpc_translate.c
+++ b/src/gallium/drivers/i915/i915_fpc_translate.c
@@ -1277,17 +1277,26 @@ i915_fini_compile(struct i915_context *i915, struct i915_fp_compile *p)
 
       /* Copy compilation results to fragment program struct: 
        */
+      assert(!ifs->decl);
       assert(!ifs->program);
+
+      ifs->decl
+         = (uint *) MALLOC(decl_size * sizeof(uint));
       ifs->program
-         = (uint *) MALLOC((program_size + decl_size) * sizeof(uint));
-      if (ifs->program) {
-         ifs->program_len = program_size + decl_size;
+         = (uint *) MALLOC(program_size * sizeof(uint));
 
-         memcpy(ifs->program,
+      if (ifs->decl) {
+         ifs->decl_len = decl_size;
+
+         memcpy(ifs->decl,
                 p->declarations,
                 decl_size * sizeof(uint));
+      }
+
+      if (ifs->program) {
+         ifs->program_len = program_size;
 
-         memcpy(ifs->program + decl_size,
+         memcpy(ifs->program,
                 p->program,
                 program_size * sizeof(uint));
       }
diff --git a/src/gallium/drivers/i915/i915_state.c b/src/gallium/drivers/i915/i915_state.c
index 853468c6ffd..d0063e3901a 100644
--- a/src/gallium/drivers/i915/i915_state.c
+++ b/src/gallium/drivers/i915/i915_state.c
@@ -608,6 +608,11 @@ void i915_delete_fs_state(struct pipe_context *pipe, void *shader)
 {
    struct i915_fragment_shader *ifs = (struct i915_fragment_shader *) shader;
 
+   if (ifs->decl) {
+      FREE(ifs->decl);
+      ifs->decl = NULL;
+   }
+
    if (ifs->program) {
       FREE(ifs->program);
       ifs->program = NULL;
@@ -615,6 +620,7 @@ void i915_delete_fs_state(struct pipe_context *pipe, void *shader)
       ifs->state.tokens = NULL;
    }
    ifs->program_len = 0;
+   ifs->decl_len = 0;
 
    FREE(ifs);
 }
diff --git a/src/gallium/drivers/i915/i915_state_emit.c b/src/gallium/drivers/i915/i915_state_emit.c
index 9c941ae9e41..2aed3f1c7dc 100644
--- a/src/gallium/drivers/i915/i915_state_emit.c
+++ b/src/gallium/drivers/i915/i915_state_emit.c
@@ -366,7 +366,7 @@ validate_program(struct i915_context *i915, unsigned *batch_space)
    uint additional_size = i915->current.target_fixup_format ? 1 : 0;
 
    /* we need more batch space if we want to emulate rgba framebuffers */
-   *batch_space = i915->fs->program_len + 3 * additional_size;
+   *batch_space = i915->fs->decl_len + i915->fs->program_len + 3 * additional_size;
 }
 
 static void
@@ -378,15 +378,19 @@ emit_program(struct i915_context *i915)
    /* we should always have, at least, a pass-through program */
    assert(i915->fs->program_len > 0);
 
+   /* output the declarations */
    {
       /* first word has the size, we have to adjust that */
-      uint size = (i915->fs->program[0]);
+      uint size = (i915->fs->decl[0]);
       size += need_target_fixup * 3;
       OUT_BATCH(size);
    }
 
-   /* output the declarations and the program */
-   for (i = 1 ; i < i915->fs->program_len; i++)
+   for (i = 1 ; i < i915->fs->decl_len; i++)
+      OUT_BATCH(i915->fs->decl[i]);
+
+   /* output the program */
+   for (i = 0 ; i < i915->fs->program_len; i++)
       OUT_BATCH(i915->fs->program[i]);
 
    /* we emit an additional mov with swizzle to fake RGBA framebuffers */
-- 
2.30.2