diff options
Diffstat (limited to 'src/gallium/drivers/i915simple/i915_blit.c')
| -rw-r--r-- | src/gallium/drivers/i915simple/i915_blit.c | 157 |
1 files changed, 157 insertions, 0 deletions
diff --git a/src/gallium/drivers/i915simple/i915_blit.c b/src/gallium/drivers/i915simple/i915_blit.c new file mode 100644 index 00000000000..45fae4c9995 --- /dev/null +++ b/src/gallium/drivers/i915simple/i915_blit.c @@ -0,0 +1,157 @@ +/************************************************************************** + * + * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * 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 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 TUNGSTEN GRAPHICS 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. + * + **************************************************************************/ + + +#include "i915_context.h" +#include "i915_winsys.h" +#include "i915_blit.h" +#include "i915_reg.h" +#include "i915_batch.h" +#include "i915_debug.h" + +#define FILE_DEBUG_FLAG DEBUG_BLIT + +void +i915_fill_blit(struct i915_context *i915, + unsigned cpp, + short dst_pitch, + struct pipe_buffer *dst_buffer, + unsigned dst_offset, + short x, short y, + short w, short h, + unsigned color) +{ + unsigned BR13, CMD; + + switch (cpp) { + case 1: + case 2: + case 3: + BR13 = dst_pitch | (0xF0 << 16) | (1 << 24); + CMD = XY_COLOR_BLT_CMD; + break; + case 4: + BR13 = dst_pitch | (0xF0 << 16) | (1 << 24) | (1 << 25); + CMD = (XY_COLOR_BLT_CMD | XY_COLOR_BLT_WRITE_ALPHA | + XY_COLOR_BLT_WRITE_RGB); + break; + default: + return; + } + +// DBG("%s dst:buf(%p)/%d+%d %d,%d sz:%dx%d\n", +// __FUNCTION__, dst_buffer, dst_pitch, dst_offset, x, y, w, h); + + + if (!BEGIN_BATCH(6, 1)) { + FLUSH_BATCH(NULL); + assert(BEGIN_BATCH(6, 1)); + } + OUT_BATCH(CMD); + OUT_BATCH(BR13); + OUT_BATCH((y << 16) | x); + OUT_BATCH(((y + h) << 16) | (x + w)); + OUT_RELOC( dst_buffer, I915_BUFFER_ACCESS_WRITE, dst_offset); + OUT_BATCH(color); +} + + +void +i915_copy_blit( struct i915_context *i915, + unsigned do_flip, + unsigned cpp, + short src_pitch, + struct pipe_buffer *src_buffer, + unsigned src_offset, + short dst_pitch, + struct pipe_buffer *dst_buffer, + unsigned dst_offset, + short src_x, short src_y, + short dst_x, short dst_y, + short w, short h ) +{ + unsigned CMD, BR13; + int dst_y2 = dst_y + h; + int dst_x2 = dst_x + w; + + + I915_DBG(i915, + "%s src:buf(%p)/%d+%d %d,%d dst:buf(%p)/%d+%d %d,%d sz:%dx%d\n", + __FUNCTION__, + src_buffer, src_pitch, src_offset, src_x, src_y, + dst_buffer, dst_pitch, dst_offset, dst_x, dst_y, w, h); + + src_pitch *= (short) cpp; + dst_pitch *= (short) cpp; + + switch (cpp) { + case 1: + case 2: + case 3: + BR13 = (((int) dst_pitch) & 0xffff) | + (0xCC << 16) | (1 << 24); + CMD = XY_SRC_COPY_BLT_CMD; + break; + case 4: + BR13 = + (((int) dst_pitch) & 0xffff) | + (0xCC << 16) | (1 << 24) | (1 << 25); + CMD = + (XY_SRC_COPY_BLT_CMD | XY_SRC_COPY_BLT_WRITE_ALPHA | + XY_SRC_COPY_BLT_WRITE_RGB); + break; + default: + return; + } + + if (dst_y2 < dst_y || + dst_x2 < dst_x) { + return; + } + + /* Hardware can handle negative pitches but loses the ability to do + * proper overlapping blits in that case. We don't really have a + * need for either at this stage. + */ + assert (dst_pitch > 0 && src_pitch > 0); + + + if (!BEGIN_BATCH(8, 2)) { + FLUSH_BATCH(NULL); + assert(BEGIN_BATCH(8, 2)); + } + OUT_BATCH(CMD); + OUT_BATCH(BR13); + OUT_BATCH((dst_y << 16) | dst_x); + OUT_BATCH((dst_y2 << 16) | dst_x2); + OUT_RELOC(dst_buffer, I915_BUFFER_ACCESS_WRITE, dst_offset); + OUT_BATCH((src_y << 16) | src_x); + OUT_BATCH(((int) src_pitch & 0xffff)); + OUT_RELOC(src_buffer, I915_BUFFER_ACCESS_READ, src_offset); +} + + |