X-Git-Url: https://git.libre-soc.org/?a=blobdiff_plain;f=src%2Fgallium%2Fdrivers%2Fi915%2Fi915_clear.c;h=57244a65bb5801d69aac41b653075f98ef4f20e3;hb=a446c40e0a7a2659e0eb89f8d1ede90d502e2589;hp=6d824a507aa38c65b1881b0cec424416b09faa62;hpb=bcc13b74443137043e8a34f8cb64a5add0d8af93;p=mesa.git

diff --git a/src/gallium/drivers/i915/i915_clear.c b/src/gallium/drivers/i915/i915_clear.c
index 6d824a507aa..57244a65bb5 100644
--- a/src/gallium/drivers/i915/i915_clear.c
+++ b/src/gallium/drivers/i915/i915_clear.c
@@ -1,6 +1,6 @@
 /**************************************************************************
  * 
- * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * Copyright 2007 VMware, Inc.
  * All Rights Reserved.
  * 
  * Permission is hereby granted, free of charge, to any person obtaining a
@@ -18,7 +18,7 @@
  * 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 NON-INFRINGEMENT.
- * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE 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.
@@ -31,17 +31,210 @@
 
 
 #include "util/u_clear.h"
+#include "util/u_format.h"
+#include "util/u_pack_color.h"
 #include "i915_context.h"
+#include "i915_screen.h"
+#include "i915_reg.h"
+#include "i915_batch.h"
+#include "i915_resource.h"
+#include "i915_state.h"
 
+void
+i915_clear_emit(struct pipe_context *pipe, unsigned buffers,
+                const union pipe_color_union *color,
+                double depth, unsigned stencil,
+                unsigned destx, unsigned desty, unsigned width, unsigned height)
+{
+   struct i915_context *i915 = i915_context(pipe);
+   uint32_t clear_params, clear_color, clear_depth, clear_stencil,
+            clear_color8888, packed_z_stencil;
+   union util_color u_color;
+   float f_depth = depth;
+   struct i915_texture *cbuf_tex, *depth_tex;
+   int depth_clear_bbp, color_clear_bbp;
+
+   cbuf_tex = depth_tex = NULL;
+   clear_params = 0;
+   depth_clear_bbp = color_clear_bbp = 0;
+
+   if (buffers & PIPE_CLEAR_COLOR) {
+      struct pipe_surface *cbuf = i915->framebuffer.cbufs[0];
+
+      clear_params |= CLEARPARAM_WRITE_COLOR;
+      cbuf_tex = i915_texture(cbuf->texture);
+
+      util_pack_color(color->f, cbuf->format, &u_color);
+      if (util_format_get_blocksize(cbuf_tex->b.b.format) == 4) {
+         clear_color = u_color.ui[0];
+         color_clear_bbp = 32;
+      } else {
+         clear_color = (u_color.ui[0] & 0xffff) | (u_color.ui[0] << 16);
+         color_clear_bbp = 16;
+      }
+
+      /* correctly swizzle clear value */
+      if (i915->current.target_fixup_format)
+         util_pack_color(color->f, cbuf->format, &u_color);
+      else
+         util_pack_color(color->f, PIPE_FORMAT_B8G8R8A8_UNORM, &u_color);
+      clear_color8888 = u_color.ui[0];
+   } else
+      clear_color = clear_color8888 = 0;
+
+   clear_depth = clear_stencil = 0;
+   if (buffers & PIPE_CLEAR_DEPTH) {
+      struct pipe_surface *zbuf = i915->framebuffer.zsbuf;
+
+      clear_params |= CLEARPARAM_WRITE_DEPTH;
+      depth_tex = i915_texture(zbuf->texture);
+      packed_z_stencil = util_pack_z_stencil(depth_tex->b.b.format, depth, stencil);
+
+      if (util_format_get_blocksize(depth_tex->b.b.format) == 4) {
+         /* Avoid read-modify-write if there's no stencil. */
+         if (buffers & PIPE_CLEAR_STENCIL
+               || depth_tex->b.b.format != PIPE_FORMAT_Z24_UNORM_S8_UINT) {
+            clear_params |= CLEARPARAM_WRITE_STENCIL;
+            clear_stencil = packed_z_stencil >> 24;
+         }
+
+         clear_depth = packed_z_stencil & 0xffffff;
+         depth_clear_bbp = 32;
+      } else {
+         clear_depth = (packed_z_stencil & 0xffff) | (packed_z_stencil << 16);
+         depth_clear_bbp = 16;
+      }
+   } else if (buffers & PIPE_CLEAR_STENCIL) {
+      struct pipe_surface *zbuf = i915->framebuffer.zsbuf;
+
+      clear_params |= CLEARPARAM_WRITE_STENCIL;
+      depth_tex = i915_texture(zbuf->texture);
+      assert(depth_tex->b.b.format == PIPE_FORMAT_Z24_UNORM_S8_UINT);
+
+      packed_z_stencil = util_pack_z_stencil(depth_tex->b.b.format, depth, stencil);
+      depth_clear_bbp = 32;
+      clear_stencil = packed_z_stencil >> 24;
+   }
+
+   /* hw can't fastclear both depth and color if their bbp mismatch. */
+   if (color_clear_bbp && depth_clear_bbp
+         && color_clear_bbp != depth_clear_bbp) {
+      if (i915->hardware_dirty)
+         i915_emit_hardware_state(i915);
+
+      if (!BEGIN_BATCH(1 + 2*(7 + 7))) {
+         FLUSH_BATCH(NULL, I915_FLUSH_ASYNC);
+
+         i915_emit_hardware_state(i915);
+         i915->vbo_flushed = 1;
+
+         assert(BEGIN_BATCH(1 + 2*(7 + 7)));
+      }
+
+      OUT_BATCH(_3DSTATE_SCISSOR_ENABLE_CMD | DISABLE_SCISSOR_RECT);
+
+      OUT_BATCH(_3DSTATE_CLEAR_PARAMETERS);
+      OUT_BATCH(CLEARPARAM_WRITE_COLOR | CLEARPARAM_CLEAR_RECT);
+      /* Used for zone init prim */
+      OUT_BATCH(clear_color);
+      OUT_BATCH(clear_depth);
+      /* Used for clear rect prim */
+      OUT_BATCH(clear_color8888);
+      OUT_BATCH_F(f_depth);
+      OUT_BATCH(clear_stencil);
+
+      OUT_BATCH(_3DPRIMITIVE | PRIM3D_CLEAR_RECT | 5);
+      OUT_BATCH_F(destx + width);
+      OUT_BATCH_F(desty + height);
+      OUT_BATCH_F(destx);
+      OUT_BATCH_F(desty + height);
+      OUT_BATCH_F(destx);
+      OUT_BATCH_F(desty);
+
+      OUT_BATCH(_3DSTATE_CLEAR_PARAMETERS);
+      OUT_BATCH((clear_params & ~CLEARPARAM_WRITE_COLOR) |
+                CLEARPARAM_CLEAR_RECT);
+      /* Used for zone init prim */
+      OUT_BATCH(clear_color);
+      OUT_BATCH(clear_depth);
+      /* Used for clear rect prim */
+      OUT_BATCH(clear_color8888);
+      OUT_BATCH_F(f_depth);
+      OUT_BATCH(clear_stencil);
+
+      OUT_BATCH(_3DPRIMITIVE | PRIM3D_CLEAR_RECT | 5);
+      OUT_BATCH_F(destx + width);
+      OUT_BATCH_F(desty + height);
+      OUT_BATCH_F(destx);
+      OUT_BATCH_F(desty + height);
+      OUT_BATCH_F(destx);
+      OUT_BATCH_F(desty);
+   } else {
+      if (i915->hardware_dirty)
+         i915_emit_hardware_state(i915);
+
+      if (!BEGIN_BATCH(1 + 7 + 7)) {
+         FLUSH_BATCH(NULL, I915_FLUSH_ASYNC);
+
+         i915_emit_hardware_state(i915);
+         i915->vbo_flushed = 1;
+
+         assert(BEGIN_BATCH(1 + 7 + 7));
+      }
+
+      OUT_BATCH(_3DSTATE_SCISSOR_ENABLE_CMD | DISABLE_SCISSOR_RECT);
+
+      OUT_BATCH(_3DSTATE_CLEAR_PARAMETERS);
+      OUT_BATCH(clear_params | CLEARPARAM_CLEAR_RECT);
+      /* Used for zone init prim */
+      OUT_BATCH(clear_color);
+      OUT_BATCH(clear_depth);
+      /* Used for clear rect prim */
+      OUT_BATCH(clear_color8888);
+      OUT_BATCH_F(f_depth);
+      OUT_BATCH(clear_stencil);
+
+      OUT_BATCH(_3DPRIMITIVE | PRIM3D_CLEAR_RECT | 5);
+      OUT_BATCH_F(destx + width);
+      OUT_BATCH_F(desty + height);
+      OUT_BATCH_F(destx);
+      OUT_BATCH_F(desty + height);
+      OUT_BATCH_F(destx);
+      OUT_BATCH_F(desty);
+   }
+
+   /* Flush after clear, its expected to be a costly operation.
+    * This is not required, just a heuristic, but without the flush we'd need to
+    * clobber the SCISSOR_ENABLE dynamic state. */
+   FLUSH_BATCH(NULL, I915_FLUSH_ASYNC);
+
+   i915->last_fired_vertices = i915->fired_vertices;
+   i915->fired_vertices = 0;
+}
 
 /**
  * Clear the given buffers to the specified values.
  * No masking, no scissor (clear entire buffer).
  */
 void
-i915_clear(struct pipe_context *pipe, unsigned buffers, const float *rgba,
-           double depth, unsigned stencil)
+i915_clear_blitter(struct pipe_context *pipe, unsigned buffers,
+                   const union pipe_color_union *color,
+                   double depth, unsigned stencil)
 {
-   util_clear(pipe, &i915_context(pipe)->framebuffer, buffers, rgba, depth,
+   util_clear(pipe, &i915_context(pipe)->framebuffer, buffers, color, depth,
               stencil);
 }
+
+void
+i915_clear_render(struct pipe_context *pipe, unsigned buffers,
+                  const union pipe_color_union *color,
+                  double depth, unsigned stencil)
+{
+   struct i915_context *i915 = i915_context(pipe);
+
+   if (i915->dirty)
+      i915_update_derived(i915);
+
+   i915_clear_emit(pipe, buffers, color, depth, stencil,
+                   0, 0, i915->framebuffer.width, i915->framebuffer.height);
+}