gallium-r300: Add r300_blit.

Count the XXXs and weep?

2 files changed, 125 insertions, 0 deletions

diff --git a/src/gallium/drivers/r300/r300_blit.c b/src/gallium/drivers/r300/r300_blit.c
new file mode 100644
index 00000000000..c01855defa3
--- /dev/null
+++ b/src/gallium/drivers/r300/r300_blit.c
@@ -0,0 +1,90 @@
+/*
+ * Copyright 2008 Corbin Simpson <[email protected]>
+ *
+ * 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 without limitation
+ * on the rights to use, copy, modify, merge, publish, distribute, sub
+ * license, 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 NON-INFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHOR(S) AND/OR THEIR 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. */
+
+/* Does a "paint" into the specified rectangle.
+ * Returns 1 on success, 0 on error. */
+int r300_fill_blit(struct r300_context* r300,
+                   unsigned cpp,
+                   short dst_pitch,
+                   struct pipe_buffer* dst_buffer,
+                   unsigned dst_offset,
+                   short x, short y,
+                   short w, short h,
+                   unsigned color)
+{
+    uint32_t dest_type;
+
+    /* Check for fallbacks. */
+    /* XXX we can do YUV surfaces, too, but only in 3D mode. Hmm... */
+    switch(cpp) {
+        case 2:
+        case 6:
+            dest_type = ATI_DATATYPE_CI8;
+            break;
+        case 4:
+            dest_type = ATI_DATATYPE_RGB565;
+            break;
+        case 8:
+            dest_type = ATI_DATATYPE_ARGB8888;
+            break;
+        default:
+            /* Whatever this is, we can't fill it. (Yet.) */
+            return 0;
+    }
+
+    /* XXX odds are *incredibly* good that we were in 3D just a bit ago,
+     * so flush here first. */
+
+    /* Set up the 2D engine. */
+    OUT_CS_REG(RADEON_DEFAULT_SC_BOTTOM_RIGHT,
+                  RADEON_DEFAULT_SC_RIGHT_MAX | RADEON_DEFAULT_SC_BOTTOM_MAX);
+    /* XXX I have no idea what these flags mean, is this awesome? (y/n) */
+    OUT_CS_REG(RADEON_DP_GUI_MASTER_CNTL,
+                  RADEON_GMC_DST_PITCH_OFFSET_CNTL |
+                  RADEON_GMC_BRUSH_SOLID_COLOR |
+                  (dest_type << 8) |
+                  RADEON_GMC_SRC_DATATYPE_COLOR |
+                  /* XXX is this the right rop? */
+                  RADEON_ROP3_ONE |
+                  RADEON_GMC_CLR_CMP_CNTL_DIS);
+    /* XXX pack this? */
+    OUT_CS_REG(RADEON_DP_BRUSH_FRGD_CLR, color);
+    OUT_CS_REG(RADEON_DP_BRUSH_BKGD_CLR, 0x00000000);
+    OUT_CS_REG(RADEON_DP_SRC_FRGD_CLR, 0xffffffff);
+    OUT_CS_REG(RADEON_DP_SRC_BKGD_CLR, 0x00000000);
+    /* XXX what should this be? */
+    OUT_CS_REG(RADEON_DP_WRITE_MASK, 0x00000000);
+    OUT_CS_REG(RADEON_DP_CNTL,
+                  RADEON_DST_X_LEFT_TO_RIGHT | RADEON_DST_Y_TOP_TO_BOTTOM);
+    OUT_CS_REG(RADEON_DST_PITCH_OFFSET, 0x0);
+    /* XXX fix this shit -> OUT_RELOC(dst, 0, RADEON_GEM_DOMAIN_VRAM) */
+
+    /* Do the actual paint. */
+    OUT_CS_REG(RADEON_DST_Y_X, (y << 16) | x);
+    OUT_CS_REG(RADEON_DST_HEIGHT_WIDTH, (h << 16) | w);
+
+    /* Let the 2D engine settle. */
+    OUT_CS_REG(RADEON_DSTCACHE_CTLSTAT, RADEON_RB2D_DC_FLUSH_ALL);
+    OUT_CS_REG(RADEON_WAIT_UNTIL,
+               RADEON_WAIT_2D_IDLECLEAN | RADEON_WAIT_DMA_GUI_IDLE);
+    return 1;
+}
diff --git a/src/gallium/drivers/r300/r300_blit.h b/src/gallium/drivers/r300/r300_blit.h
new file mode 100644
index 00000000000..ac916ca0626
--- /dev/null
+++ b/src/gallium/drivers/r300/r300_blit.h
@@ -0,0 +1,35 @@
+/*
+ * Copyright 2008 Corbin Simpson <[email protected]>
+ *
+ * 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 without limitation
+ * on the rights to use, copy, modify, merge, publish, distribute, sub
+ * license, 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 NON-INFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHOR(S) AND/OR THEIR 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. */
+
+#ifndef R300_BLIT_H
+#define R300_BLIT_H
+
+extern int r300_fill_blit(struct r300_context* r300,
+                          unsigned cpp,
+                          short dst_pitch,
+                          struct pipe_buffer *dst_buffer,
+                          unsigned dst_offset,
+                          short x, short y,
+                          short w, short h,
+                          unsigned color);
+
+#endif /* R300_BLIT_H */
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