}
#endif
+
+/**
+ * Allocate a new pipe_texture object
+ * width0, height0, depth0 are the dimensions of the level 0 image
+ * (the highest resolution). last_level indicates how many mipmap levels
+ * to allocate storage for. For non-mipmapped textures, this will be zero.
+ */
struct pipe_texture *
st_texture_create(struct st_context *st,
enum pipe_texture_target target,
enum pipe_format format,
- GLuint first_level,
GLuint last_level,
GLuint width0,
GLuint height0,
GLuint depth0,
GLuint compress_byte)
{
- struct pipe_texture *pt = CALLOC_STRUCT(pipe_texture);
+ struct pipe_texture pt;
assert(target <= PIPE_TEXTURE_CUBE);
- DBG("%s target %s format %s level %d..%d\n", __FUNCTION__,
+ DBG("%s target %s format %s last_level %d\n", __FUNCTION__,
_mesa_lookup_enum_by_nr(target),
- _mesa_lookup_enum_by_nr(format), first_level, last_level);
-
- if (!pt)
- return NULL;
+ _mesa_lookup_enum_by_nr(format), last_level);
assert(format);
- pt->target = target;
- pt->format = format;
- pt->first_level = first_level;
- pt->last_level = last_level;
- pt->width[0] = width0;
- pt->height[0] = height0;
- pt->depth[0] = depth0;
- pt->compressed = compress_byte ? 1 : 0;
- pt->cpp = pt->compressed ? compress_byte : st_sizeof_format(format);
- pt->refcount = 1;
-
- st->pipe->texture_create(st->pipe, &pt);
-
- return pt;
+ memset(&pt, 0, sizeof(pt));
+ pt.target = target;
+ pt.format = format;
+ pt.last_level = last_level;
+ pt.width[0] = width0;
+ pt.height[0] = height0;
+ pt.depth[0] = depth0;
+ pt.compressed = compress_byte ? 1 : 0;
+ pt.cpp = pt.compressed ? compress_byte : st_sizeof_format(format);
+ pt.refcount = 1;
+
+ return st->pipe->texture_create(st->pipe, &pt);
}
-
-
-/* Can the image be pulled into a unified mipmap texture. This mirrors
- * the completeness test in a lot of ways.
+/**
+ * Check if a texture image be pulled into a unified mipmap texture.
+ * This mirrors the completeness test in a lot of ways.
*
* Not sure whether I want to pass gl_texture_image here.
*/
GLboolean
-st_texture_match_image(struct pipe_texture *pt,
- struct gl_texture_image *image,
- GLuint face, GLuint level)
+st_texture_match_image(const struct pipe_texture *pt,
+ const struct gl_texture_image *image,
+ GLuint face, GLuint level)
{
/* Images with borders are never pulled into mipmap textures.
*/
return pipe_surface_map(stImage->surface);
}
+
void
st_texture_image_unmap(struct st_texture_image *stImage)
{
+/**
+ * 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
+st_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)
+{
+ pipe_copy_rect(pipe_surface_map(dst),
+ dst->cpp,
+ dst->pitch,
+ dstx, dsty, width, height, src, src_pitch, srcx, srcy);
+
+ pipe_surface_unmap(dst);
+}
+
+
/* Upload data for a particular image.
*/
void
dst_surface = pipe->get_tex_surface(pipe, dst, face, level, i);
- pipe->surface_data(pipe, dst_surface,
- 0, 0, /* dstx, dsty */
- srcUB,
- src_row_pitch,
- 0, 0, /* source x, y */
- dst->width[level], height); /* width, height */
+ st_surface_data(pipe, dst_surface,
+ 0, 0, /* dstx, dsty */
+ srcUB,
+ src_row_pitch,
+ 0, 0, /* source x, y */
+ dst->width[level], height); /* width, height */
pipe_surface_reference(&dst_surface, NULL);
}
}
+
/* Copy mipmap image between textures
*/
void
st_texture_image_copy(struct pipe_context *pipe,
- struct pipe_texture *dst,
- GLuint face, GLuint level,
- struct pipe_texture *src)
+ struct pipe_texture *dst, GLuint dstLevel,
+ struct pipe_texture *src,
+ GLuint face)
{
- GLuint width = src->width[level];
- GLuint height = src->height[level];
- GLuint depth = src->depth[level];
+ GLuint width = dst->width[dstLevel];
+ GLuint height = dst->height[dstLevel];
+ GLuint depth = dst->depth[dstLevel];
struct pipe_surface *src_surface;
struct pipe_surface *dst_surface;
GLuint i;
+ /* XXX this is a hack */
if (dst->compressed)
height /= 4;
+
for (i = 0; i < depth; i++) {
- dst_surface = pipe->get_tex_surface(pipe, dst, face, level, i);
- src_surface = pipe->get_tex_surface(pipe, src, face, level, i);
+ GLuint srcLevel;
+
+ /* find src texture level of needed size */
+ for (srcLevel = 0; srcLevel <= src->last_level; srcLevel++) {
+ if (src->width[srcLevel] == width &&
+ src->height[srcLevel] == height) {
+ break;
+ }
+ }
+ assert(src->width[srcLevel] == width);
+ assert(src->height[srcLevel] == height);
+
+ dst_surface = pipe->get_tex_surface(pipe, dst, face, dstLevel, i);
+ src_surface = pipe->get_tex_surface(pipe, src, face, srcLevel, i);
pipe->surface_copy(pipe,
+ FALSE,
dst_surface,
0, 0, /* destX, Y */
src_surface,
pipe_surface_reference(&dst_surface, NULL);
pipe_surface_reference(&src_surface, NULL);
}
-
}
projects / mesa.git / blobdiff