summaryrefslogtreecommitdiff
path: root/src/mesa/pipe/i965simple/brw_surface.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/mesa/pipe/i965simple/brw_surface.c')
-rw-r--r--src/mesa/pipe/i965simple/brw_surface.c397
1 files changed, 397 insertions, 0 deletions
diff --git a/src/mesa/pipe/i965simple/brw_surface.c b/src/mesa/pipe/i965simple/brw_surface.c
new file mode 100644
index 0000000000..b5a0318047
--- /dev/null
+++ b/src/mesa/pipe/i965simple/brw_surface.c
@@ -0,0 +1,397 @@
+/**************************************************************************
+ *
+ * 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 "brw_blit.h"
+#include "brw_context.h"
+#include "brw_state.h"
+#include "pipe/p_defines.h"
+#include "pipe/p_util.h"
+#include "pipe/p_inlines.h"
+#include "pipe/p_winsys.h"
+
+
+#define CLIP_TILE \
+ do { \
+ if (x >= ps->width) \
+ return; \
+ if (y >= ps->height) \
+ return; \
+ if (x + w > ps->width) \
+ w = ps->width - x; \
+ if (y + h > ps->height) \
+ h = ps->height -y; \
+ } while(0)
+
+
+/**
+ * Note: this is exactly like a8r8g8b8_get_tile() in sp_surface.c
+ * Share it someday.
+ */
+static void
+brw_get_tile_rgba(struct pipe_context *pipe,
+ struct pipe_surface *ps,
+ uint x, uint y, uint w, uint h, float *p)
+{
+ const unsigned *src
+ = ((const unsigned *) (ps->map + ps->offset))
+ + y * ps->pitch + x;
+ unsigned i, j;
+ unsigned w0 = w;
+
+ CLIP_TILE;
+
+ switch (ps->format) {
+ case PIPE_FORMAT_A8R8G8B8_UNORM:
+ for (i = 0; i < h; i++) {
+ float *pRow = p;
+ for (j = 0; j < w; j++) {
+ const unsigned pixel = src[j];
+ pRow[0] = UBYTE_TO_FLOAT((pixel >> 16) & 0xff);
+ pRow[1] = UBYTE_TO_FLOAT((pixel >> 8) & 0xff);
+ pRow[2] = UBYTE_TO_FLOAT((pixel >> 0) & 0xff);
+ pRow[3] = UBYTE_TO_FLOAT((pixel >> 24) & 0xff);
+ pRow += 4;
+ }
+ src += ps->pitch;
+ p += w0 * 4;
+ }
+ break;
+ case PIPE_FORMAT_S8Z24_UNORM:
+ {
+ const float scale = 1.0f / (float) 0xffffff;
+ for (i = 0; i < h; i++) {
+ float *pRow = p;
+ for (j = 0; j < w; j++) {
+ const unsigned pixel = src[j];
+ pRow[0] =
+ pRow[1] =
+ pRow[2] =
+ pRow[3] = (pixel & 0xffffff) * scale;
+ pRow += 4;
+ }
+ src += ps->pitch;
+ p += w0 * 4;
+ }
+ }
+ break;
+ default:
+ assert(0);
+ }
+}
+
+
+static void
+brw_put_tile_rgba(struct pipe_context *pipe,
+ struct pipe_surface *ps,
+ uint x, uint y, uint w, uint h, const float *p)
+{
+ /* TODO */
+ assert(0);
+}
+
+
+/*
+ * XXX note: same as code in sp_surface.c
+ */
+static void
+brw_get_tile(struct pipe_context *pipe,
+ struct pipe_surface *ps,
+ uint x, uint y, uint w, uint h,
+ void *p, int dst_stride)
+{
+ const uint cpp = ps->cpp;
+ const uint w0 = w;
+ const ubyte *pSrc;
+ ubyte *pDest;
+ uint i;
+
+ assert(ps->map);
+
+ CLIP_TILE;
+
+ if (dst_stride == 0) {
+ dst_stride = w0 * cpp;
+ }
+
+ pSrc = ps->map + ps->offset + (y * ps->pitch + x) * cpp;
+ pDest = (ubyte *) p;
+
+ for (i = 0; i < h; i++) {
+ memcpy(pDest, pSrc, w0 * cpp);
+ pDest += dst_stride;
+ pSrc += ps->pitch * cpp;
+ }
+}
+
+
+/*
+ * XXX note: same as code in sp_surface.c
+ */
+static void
+brw_put_tile(struct pipe_context *pipe,
+ struct pipe_surface *ps,
+ uint x, uint y, uint w, uint h,
+ const void *p, int src_stride)
+{
+ const uint cpp = ps->cpp;
+ const uint w0 = w;
+ const ubyte *pSrc;
+ ubyte *pDest;
+ uint i;
+
+ assert(ps->map);
+
+ CLIP_TILE;
+
+ if (src_stride == 0) {
+ src_stride = w0 * cpp;
+ }
+
+ pSrc = (const ubyte *) p;
+ pDest = ps->map + ps->offset + (y * ps->pitch + x) * cpp;
+
+ for (i = 0; i < h; i++) {
+ memcpy(pDest, pSrc, w0 * cpp);
+ pDest += ps->pitch * cpp;
+ pSrc += src_stride;
+ }
+}
+
+
+/*
+ * XXX note: same as code in sp_surface.c
+ */
+static struct pipe_surface *
+brw_get_tex_surface(struct pipe_context *pipe,
+ struct pipe_texture *pt,
+ unsigned face, unsigned level, unsigned zslice)
+{
+ struct brw_texture *tex = (struct brw_texture *)pt;
+ struct pipe_surface *ps;
+ unsigned offset; /* in bytes */
+
+ offset = tex->level_offset[level];
+
+ if (pt->target == PIPE_TEXTURE_CUBE) {
+ offset += tex->image_offset[level][face] * pt->cpp;
+ }
+ else if (pt->target == PIPE_TEXTURE_3D) {
+ offset += tex->image_offset[level][zslice] * pt->cpp;
+ }
+ else {
+ assert(face == 0);
+ assert(zslice == 0);
+ }
+
+ ps = pipe->winsys->surface_alloc(pipe->winsys);
+ if (ps) {
+ assert(ps->format);
+ assert(ps->refcount);
+ pipe->winsys->buffer_reference(pipe->winsys, &ps->buffer, tex->buffer);
+ ps->format = pt->format;
+ ps->cpp = pt->cpp;
+ ps->width = pt->width[level];
+ ps->height = pt->height[level];
+ ps->pitch = tex->pitch;
+ ps->offset = offset;
+ }
+ return ps;
+}
+
+/*
+ * XXX Move this into core Mesa?
+ */
+static void
+_mesa_copy_rect(ubyte * dst,
+ unsigned cpp,
+ unsigned dst_pitch,
+ unsigned dst_x,
+ unsigned dst_y,
+ unsigned width,
+ unsigned height,
+ const ubyte * src,
+ unsigned src_pitch,
+ unsigned src_x,
+ unsigned src_y)
+{
+ unsigned i;
+
+ dst_pitch *= cpp;
+ src_pitch *= cpp;
+ dst += dst_x * cpp;
+ src += src_x * cpp;
+ dst += dst_y * dst_pitch;
+ src += src_y * dst_pitch;
+ width *= cpp;
+
+ if (width == dst_pitch && width == src_pitch)
+ memcpy(dst, src, height * width);
+ else {
+ for (i = 0; i < height; i++) {
+ memcpy(dst, src, width);
+ dst += dst_pitch;
+ src += src_pitch;
+ }
+ }
+}
+
+/* Upload data to a rectangular sub-region. Lots of choices how to do this:
+ *
+ * - memcpy by span to current destination
+ * - upload data as new buffer and blit
+ *
+ * Currently always memcpy.
+ */
+static void
+brw_surface_data(struct pipe_context *pipe,
+ struct pipe_surface *dst,
+ unsigned dstx, unsigned dsty,
+ const void *src, unsigned src_pitch,
+ unsigned srcx, unsigned srcy, unsigned width, unsigned height)
+{
+ _mesa_copy_rect(pipe_surface_map(dst) + dst->offset,
+ dst->cpp,
+ dst->pitch,
+ dstx, dsty, width, height, src, src_pitch, srcx, srcy);
+
+ pipe_surface_unmap(dst);
+}
+
+
+/* Assumes all values are within bounds -- no checking at this level -
+ * do it higher up if required.
+ */
+static void
+brw_surface_copy(struct pipe_context *pipe,
+ struct pipe_surface *dst,
+ unsigned dstx, unsigned dsty,
+ struct pipe_surface *src,
+ unsigned srcx, unsigned srcy, unsigned width, unsigned height)
+{
+ assert(dst != src);
+ assert(dst->cpp == src->cpp);
+
+ if (0) {
+ _mesa_copy_rect(pipe_surface_map(dst) + dst->offset,
+ dst->cpp,
+ dst->pitch,
+ dstx, dsty,
+ width, height,
+ pipe_surface_map(src) + src->offset,
+ src->pitch,
+ srcx, srcy);
+
+ pipe_surface_unmap(src);
+ pipe_surface_unmap(dst);
+ }
+ else {
+ brw_copy_blit(brw_context(pipe),
+ dst->cpp,
+ (short) src->pitch, src->buffer, src->offset, FALSE,
+ (short) dst->pitch, dst->buffer, dst->offset, FALSE,
+ (short) srcx, (short) srcy, (short) dstx, (short) dsty,
+ (short) width, (short) height, PIPE_LOGICOP_COPY);
+ }
+}
+
+/* Fill a rectangular sub-region. Need better logic about when to
+ * push buffers into AGP - will currently do so whenever possible.
+ */
+static ubyte *
+get_pointer(struct pipe_surface *dst, unsigned x, unsigned y)
+{
+ return dst->map + (y * dst->pitch + x) * dst->cpp;
+}
+
+
+static void
+brw_surface_fill(struct pipe_context *pipe,
+ struct pipe_surface *dst,
+ unsigned dstx, unsigned dsty,
+ unsigned width, unsigned height, unsigned value)
+{
+ if (0) {
+ unsigned i, j;
+
+ (void)pipe_surface_map(dst);
+
+ switch (dst->cpp) {
+ case 1: {
+ ubyte *row = get_pointer(dst, dstx, dsty);
+ for (i = 0; i < height; i++) {
+ memset(row, value, width);
+ row += dst->pitch;
+ }
+ }
+ break;
+ case 2: {
+ ushort *row = (ushort *) get_pointer(dst, dstx, dsty);
+ for (i = 0; i < height; i++) {
+ for (j = 0; j < width; j++)
+ row[j] = (ushort) value;
+ row += dst->pitch;
+ }
+ }
+ break;
+ case 4: {
+ unsigned *row = (unsigned *) get_pointer(dst, dstx, dsty);
+ for (i = 0; i < height; i++) {
+ for (j = 0; j < width; j++)
+ row[j] = value;
+ row += dst->pitch;
+ }
+ }
+ break;
+ default:
+ assert(0);
+ break;
+ }
+ }
+ else {
+ brw_fill_blit(brw_context(pipe),
+ dst->cpp,
+ (short) dst->pitch,
+ dst->buffer, dst->offset, FALSE,
+ (short) dstx, (short) dsty,
+ (short) width, (short) height,
+ value);
+ }
+}
+
+void
+brw_init_surface_functions(struct brw_context *brw)
+{
+ brw->pipe.get_tex_surface = brw_get_tex_surface;
+ brw->pipe.get_tile = brw_get_tile;
+ brw->pipe.put_tile = brw_put_tile;
+ brw->pipe.get_tile_rgba = brw_get_tile_rgba;
+ brw->pipe.put_tile_rgba = brw_put_tile_rgba;
+
+ brw->pipe.surface_data = brw_surface_data;
+ brw->pipe.surface_copy = brw_surface_copy;
+ brw->pipe.surface_fill = brw_surface_fill;
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-09 18:44:07 +0000