gallium: remove unused winsys pointers in pipe_screen and pipe_context
[mesa.git] / src / gallium / drivers / i915 / i915_state_emit.c
index 324a8a3e158cfd4161cce6c39f62135108a87356..8ab8fb8cd7474529b35527bdbff72b7c541df224 100644 (file)
@@ -34,7 +34,9 @@
 
 #include "pipe/p_context.h"
 #include "pipe/p_defines.h"
+#include "pipe/p_format.h"
 
+#include "util/u_format.h"
 #include "util/u_math.h"
 #include "util/u_memory.h"
 
@@ -128,7 +130,7 @@ validate_immediate(struct i915_context *i915, unsigned *batch_space)
 static void
 emit_immediate(struct i915_context *i915)
 {
-   /* remove unwatned bits and S7 */
+   /* remove unwanted bits and S7 */
    unsigned dirty = (1 << I915_IMMEDIATE_S0 | 1 << I915_IMMEDIATE_S1 |
                      1 << I915_IMMEDIATE_S2 | 1 << I915_IMMEDIATE_S3 |
                      1 << I915_IMMEDIATE_S3 | 1 << I915_IMMEDIATE_S4 |
@@ -149,8 +151,25 @@ emit_immediate(struct i915_context *i915)
    }
 
    for (i = 1; i < I915_MAX_IMMEDIATE; i++) {
-      if (dirty & (1 << i))
-         OUT_BATCH(i915->current.immediate[i]);
+      if (dirty & (1 << i)) {
+         /* Fixup blend function for A8 dst buffers.
+          * When we blend to an A8 buffer, the GPU thinks it's a G8 buffer,
+          * and therefore we need to use the color factor for alphas. */
+         if ((i == I915_IMMEDIATE_S6) &&
+             (i915->current.target_fixup_format == PIPE_FORMAT_A8_UNORM)) {
+            uint32_t imm = i915->current.immediate[i];
+            uint32_t srcRGB = (imm >> S6_CBUF_SRC_BLEND_FACT_SHIFT) & BLENDFACT_MASK;
+            if (srcRGB == BLENDFACT_DST_ALPHA)
+               srcRGB = BLENDFACT_DST_COLR;
+            else if (srcRGB == BLENDFACT_INV_DST_ALPHA)
+               srcRGB = BLENDFACT_INV_DST_COLR;
+            imm &= ~SRC_BLND_FACT(BLENDFACT_MASK);
+            imm |= SRC_BLND_FACT(srcRGB);
+            OUT_BATCH(imm);
+         } else {
+            OUT_BATCH(i915->current.immediate[i]);
+         }
+      }
    }
 }
 
@@ -173,25 +192,31 @@ emit_dynamic(struct i915_context *i915)
 static void
 validate_static(struct i915_context *i915, unsigned *batch_space)
 {
-   *batch_space = 2 + 5; /* including DRAW_RECT */
+   *batch_space = 0;
 
-   if (i915->current.cbuf_bo) {
+   if (i915->current.cbuf_bo && (i915->static_dirty & I915_DST_BUF_COLOR)) {
       i915->validation_buffers[i915->num_validation_buffers++]
          = i915->current.cbuf_bo;
       *batch_space += 3;
    }
 
-   if (i915->current.depth_bo) {
+   if (i915->current.depth_bo && (i915->static_dirty & I915_DST_BUF_DEPTH)) {
       i915->validation_buffers[i915->num_validation_buffers++]
          = i915->current.depth_bo;
       *batch_space += 3;
    }
+
+   if (i915->static_dirty & I915_DST_VARS)
+      *batch_space += 2;
+
+   if (i915->static_dirty & I915_DST_RECT)
+      *batch_space += 5;
 }
 
 static void
 emit_static(struct i915_context *i915)
 {
-   if (i915->current.cbuf_bo) {
+   if (i915->current.cbuf_bo && (i915->static_dirty & I915_DST_BUF_COLOR)) {
       OUT_BATCH(_3DSTATE_BUF_INFO_CMD);
       OUT_BATCH(i915->current.cbuf_flags);
       OUT_RELOC(i915->current.cbuf_bo,
@@ -201,7 +226,7 @@ emit_static(struct i915_context *i915)
 
    /* What happens if no zbuf??
     */
-   if (i915->current.depth_bo) {
+   if (i915->current.depth_bo && (i915->static_dirty & I915_DST_BUF_DEPTH)) {
       OUT_BATCH(_3DSTATE_BUF_INFO_CMD);
       OUT_BATCH(i915->current.depth_flags);
       OUT_RELOC(i915->current.depth_bo,
@@ -209,7 +234,7 @@ emit_static(struct i915_context *i915)
                 0);
    }
 
-   {
+   if (i915->static_dirty & I915_DST_VARS) {
       OUT_BATCH(_3DSTATE_DST_BUF_VARS_CMD);
       OUT_BATCH(i915->current.dst_buf_vars);
    }
@@ -273,7 +298,7 @@ emit_sampler(struct i915_context *i915)
    if (i915->current.sampler_enable_nr) {
       int i;
 
-      OUT_BATCH( _3DSTATE_SAMPLER_STATE | 
+      OUT_BATCH( _3DSTATE_SAMPLER_STATE |
                  (3 * i915->current.sampler_enable_nr) );
 
       OUT_BATCH( i915->current.sampler_enable_flags );
@@ -338,28 +363,59 @@ emit_constants(struct i915_context *i915)
 static void
 validate_program(struct i915_context *i915, unsigned *batch_space)
 {
-   *batch_space = i915->fs->program_len;
+   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->decl_len + i915->fs->program_len + 3 * additional_size;
 }
 
 static void
 emit_program(struct i915_context *i915)
 {
-      uint i;
-      /* we should always have, at least, a pass-through program */
-      assert(i915->fs->program_len > 0);
-      for (i = 0; i < i915->fs->program_len; i++) {
-         OUT_BATCH(i915->fs->program[i]);
-      }
+   uint need_target_fixup = i915->current.target_fixup_format ? 1 : 0;
+   uint i;
+
+   /* 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->decl[0]);
+      size += need_target_fixup * 3;
+      OUT_BATCH(size);
+   }
+
+   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 */
+   if (need_target_fixup) {
+      /* mov out_color, out_color.zyxw */
+      OUT_BATCH(A0_MOV |
+                (REG_TYPE_OC << A0_DEST_TYPE_SHIFT) |
+                A0_DEST_CHANNEL_ALL |
+                (REG_TYPE_OC << A0_SRC0_TYPE_SHIFT) |
+                (T_DIFFUSE << A0_SRC0_NR_SHIFT));
+      OUT_BATCH(i915->current.fixup_swizzle);
+      OUT_BATCH(0);
+   }
 }
 
 static void
 emit_draw_rect(struct i915_context *i915)
 {
-   OUT_BATCH(_3DSTATE_DRAW_RECT_CMD);
-   OUT_BATCH(DRAW_RECT_DIS_DEPTH_OFS);
-   OUT_BATCH(i915->current.draw_offset);
-   OUT_BATCH(i915->current.draw_size);
-   OUT_BATCH(i915->current.draw_offset);
+   if (i915->static_dirty & I915_DST_RECT) {
+      OUT_BATCH(_3DSTATE_DRAW_RECT_CMD);
+      OUT_BATCH(DRAW_RECT_DIS_DEPTH_OFS);
+      OUT_BATCH(i915->current.draw_offset);
+      OUT_BATCH(i915->current.draw_size);
+      OUT_BATCH(i915->current.draw_offset);
+   }
 }
 
 static boolean
@@ -373,10 +429,22 @@ i915_validate_state(struct i915_context *i915, unsigned *batch_space)
    else
       *batch_space = 0;
 
+#if 0
+static int counter_total = 0;
+#define VALIDATE_ATOM(atom, hw_dirty) \
+   if (i915->hardware_dirty & hw_dirty) { \
+      static int counter_##atom = 0;\
+      validate_##atom(i915, &tmp); \
+      *batch_space += tmp;\
+      counter_##atom += tmp;\
+      counter_total += tmp;\
+      printf("%s: \t%d/%d \t%2.2f\n",#atom, counter_##atom, counter_total, counter_##atom*100.f/counter_total);}
+#else
 #define VALIDATE_ATOM(atom, hw_dirty) \
    if (i915->hardware_dirty & hw_dirty) { \
       validate_##atom(i915, &tmp); \
       *batch_space += tmp; }
+#endif
    VALIDATE_ATOM(flush, I915_HW_FLUSH);
    VALIDATE_ATOM(immediate, I915_HW_IMMEDIATE);
    VALIDATE_ATOM(dynamic, I915_HW_DYNAMIC);
@@ -405,6 +473,8 @@ i915_emit_hardware_state(struct i915_context *i915 )
    unsigned batch_space;
    uintptr_t save_ptr;
 
+   assert(i915->dirty == 0);
+
    if (I915_DBG_ON(DBG_ATOMS))
       i915_dump_hardware_dirty(i915, __FUNCTION__);
 
@@ -444,5 +514,6 @@ i915_emit_hardware_state(struct i915_context *i915 )
    i915->hardware_dirty = 0;
    i915->immediate_dirty = 0;
    i915->dynamic_dirty = 0;
+   i915->static_dirty = 0;
    i915->flush_dirty = 0;
 }