st_texture.h File Reference

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Data Structures
struct	st_texture_image
struct	st_texture_object
Functions
static struct st_texture_image *	st_texture_image (struct gl_texture_image *img)
static struct st_texture_object *	st_texture_object (struct gl_texture_object *obj)
static struct pipe_texture *	st_get_texobj_texture (struct gl_texture_object *texObj)
static struct pipe_texture *	st_get_stobj_texture (struct st_texture_object *stObj)
static GLboolean	pf_is_depth_stencil (enum pipe_format format)
struct pipe_texture *	st_texture_create (struct st_context *st, enum pipe_texture_target target, enum pipe_format format, GLuint last_level, GLuint width0, GLuint height0, GLuint depth0, GLuint compress_byte, GLuint tex_usage)
	Allocate a new pipe_texture object width0, height0, depth0 are the dimensions of the level 0 image (the highest resolution).
GLboolean	st_texture_match_image (const struct pipe_texture *pt, const struct gl_texture_image *image, GLuint face, GLuint level)
	Check if a texture image be pulled into a unified mipmap texture.
GLubyte *	st_texture_image_map (struct st_context *st, struct st_texture_image *stImage, GLuint zoffset, GLuint flags)
	Map a teximage in a mipmap texture.
void	st_texture_image_unmap (struct st_context *st, struct st_texture_image *stImage)
const GLuint *	st_texture_depth_offsets (struct pipe_texture *pt, GLuint level)
GLuint	st_texture_image_offset (const struct pipe_texture *pt, GLuint face, GLuint level)
GLuint	st_texture_texel_offset (const struct pipe_texture *pt, GLuint face, GLuint level, GLuint col, GLuint row, GLuint img)
void	st_texture_image_data (struct pipe_context *pipe, struct pipe_texture *dst, GLuint face, GLuint level, void *src, GLuint src_row_pitch, GLuint src_image_pitch)
void	st_texture_image_copy (struct pipe_context *pipe, struct pipe_texture *dst, GLuint dstLevel, struct pipe_texture *src, GLuint face)

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Function Documentation

static GLboolean pf_is_depth_stencil

(

enum pipe_format

format

)

[static]

Definition at line 102 of file st_texture.h.

References pf_get_component_bits(), PIPE_FORMAT_COMP_S, and PIPE_FORMAT_COMP_Z.

{
   return (pf_get_component_bits( format, PIPE_FORMAT_COMP_Z ) +
           pf_get_component_bits( format, PIPE_FORMAT_COMP_S )) != 0;
}

static struct pipe_texture* st_get_stobj_texture

(

struct st_texture_object *

stObj

)

[static, read]

Definition at line 97 of file st_texture.h.

References st_texture_object::pt.

{
   return stObj ? stObj->pt : NULL;
}

static struct pipe_texture* st_get_texobj_texture

(

struct gl_texture_object *

texObj

)

[static, read]

Definition at line 89 of file st_texture.h.

References st_texture_object::pt, and st_texture_object().

{
   struct st_texture_object *stObj = st_texture_object(texObj);
   return stObj ? stObj->pt : NULL;
}

struct pipe_texture* st_texture_create	(	struct st_context *	st,
		enum pipe_texture_target	target,
		enum pipe_format	format,
		GLuint	last_level,
		GLuint	width0,
		GLuint	height0,
		GLuint	depth0,
		GLuint	compress_byte,
		GLuint	usage
	)			[read]

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.

Definition at line 74 of file st_texture.c.

References assert, pipe_texture::block, pipe_texture::compressed, DBG, pipe_texture::depth, pipe_texture::format, pipe_texture::height, pipe_screen::is_format_supported, pipe_texture::last_level, pf_get_block(), st_context::pipe, PIPE_TEXTURE_CUBE, PIPE_TEXTURE_USAGE_SAMPLER, pipe_texture::refcount, pipe_context::screen, pipe_texture::target, pipe_texture::tex_usage, pipe_screen::texture_create, and pipe_texture::width.

{
   struct pipe_texture pt, *newtex;
   struct pipe_screen *screen = st->pipe->screen;

   assert(target <= PIPE_TEXTURE_CUBE);

   DBG("%s target %s format %s last_level %d\n", __FUNCTION__,
       _mesa_lookup_enum_by_nr(target),
       _mesa_lookup_enum_by_nr(format), last_level);

   assert(format);
   assert(screen->is_format_supported(screen, format, target, 
                                      PIPE_TEXTURE_USAGE_SAMPLER, 0));

   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;
   pf_get_block(format, &pt.block);
   pt.tex_usage = usage;

   newtex = screen->texture_create(screen, &pt);

   assert(!newtex || newtex->refcount == 1);

   return newtex;
}

const GLuint* st_texture_depth_offsets	(	struct pipe_texture *	pt,
		GLuint	level
	)

static struct st_texture_image* st_texture_image

(

struct gl_texture_image *

img

)

[static, read]

Definition at line 76 of file st_texture.h.

{
   return (struct st_texture_image *) img;
}

void st_texture_image_copy	(	struct pipe_context *	pipe,
		struct pipe_texture *	dst,
		GLuint	dstLevel,
		struct pipe_texture *	src,
		GLuint	face
	)

Definition at line 292 of file st_texture.c.

References assert, pipe_texture::depth, FALSE, pipe_screen::get_tex_surface, pipe_surface::height, pipe_texture::height, pipe_texture::last_level, PIPE_BUFFER_USAGE_CPU_READ, PIPE_BUFFER_USAGE_GPU_READ, PIPE_BUFFER_USAGE_GPU_WRITE, pipe_surface_reference(), pipe_context::screen, pipe_context::surface_copy, pipe_screen::surface_map, pipe_screen::surface_unmap, pipe_screen::tex_surface_release, pipe_surface::width, and pipe_texture::width.

{
   struct pipe_screen *screen = pipe->screen;
   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;

   for (i = 0; i < depth; 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);

#if 0
      {
         src_surface = screen->get_tex_surface(screen, src, face, srcLevel, i,
                                               PIPE_BUFFER_USAGE_CPU_READ);
         ubyte *map = screen->surface_map(screen, src_surface, PIPE_BUFFER_USAGE_CPU_READ);
         map += src_surface->width * src_surface->height * 4 / 2;
         printf("%s center pixel: %d %d %d %d (pt %p[%d] -> %p[%d])\n",
                __FUNCTION__,
                map[0], map[1], map[2], map[3],
                src, srcLevel, dst, dstLevel);

         screen->surface_unmap(screen, src_surface);
         pipe_surface_reference(&src_surface, NULL);
      }
#endif

      dst_surface = screen->get_tex_surface(screen, dst, face, dstLevel, i,
                                            PIPE_BUFFER_USAGE_GPU_WRITE);

      src_surface = screen->get_tex_surface(screen, src, face, srcLevel, i,
                                            PIPE_BUFFER_USAGE_GPU_READ);

      pipe->surface_copy(pipe,
                         FALSE,
                         dst_surface,
                         0, 0, /* destX, Y */
                         src_surface,
                         0, 0, /* srcX, Y */
                         width, height);

      screen->tex_surface_release(screen, &src_surface);
      screen->tex_surface_release(screen, &dst_surface);

void st_texture_image_data	(	struct pipe_context *	pipe,
		struct pipe_texture *	dst,
		GLuint	face,
		GLuint	level,
		void *	src,
		GLuint	src_row_pitch,
		GLuint	src_image_pitch
	)

Definition at line 257 of file st_texture.c.

References DBG, pipe_texture::depth, pipe_screen::get_tex_surface, pipe_texture::height, PIPE_BUFFER_USAGE_CPU_WRITE, pipe_context::screen, st_surface_data(), pipe_screen::tex_surface_release, and pipe_texture::width.

{
   struct pipe_screen *screen = pipe->screen;
   GLuint depth = dst->depth[level];
   GLuint i;
   const GLubyte *srcUB = src;
   struct pipe_surface *dst_surface;

   DBG("%s\n", __FUNCTION__);
   for (i = 0; i < depth; i++) {
      dst_surface = screen->get_tex_surface(screen, dst, face, level, i,
                                            PIPE_BUFFER_USAGE_CPU_WRITE);

      st_surface_data(pipe, dst_surface,
                      0, 0,                             /* dstx, dsty */
                      srcUB,
                      src_row_stride,
                      0, 0,                             /* source x, y */
                      dst->width[level], dst->height[level]);       /* width, height */

      screen->tex_surface_release(screen, &dst_surface);

      srcUB += src_image_stride;

GLubyte* st_texture_image_map	(	struct st_context *	st,
		struct st_texture_image *	stImage,
		GLuint	zoffset,
		GLuint	flags
	)

Map a teximage in a mipmap texture.

Parameters:

	row_stride	returns row stride in bytes
	image_stride	returns image stride in bytes (for 3D textures).

Returns:

address of mapping

Definition at line 190 of file st_texture.c.

{
   struct pipe_screen *screen = st->pipe->screen;
   struct pipe_texture *pt = stImage->pt;
   DBG("%s \n", __FUNCTION__);

   stImage->surface = screen->get_tex_surface(screen, pt, stImage->face,
                                              stImage->level, zoffset, 
                                              flags);

   if (stImage->surface)
      return screen->surface_map(screen, stImage->surface, flags);
   else

GLuint st_texture_image_offset	(	const struct pipe_texture *	pt,
		GLuint	face,
		GLuint	level
	)

void st_texture_image_unmap	(	struct st_context *	st,
		struct st_texture_image *	stImage
	)

Definition at line 210 of file st_texture.c.

References DBG, st_context::pipe, pipe_surface_reference(), pipe_context::screen, st_texture_image::surface, and pipe_screen::surface_unmap.

{
   struct pipe_screen *screen = st->pipe->screen;

   DBG("%s\n", __FUNCTION__);

   screen->surface_unmap(screen, stImage->surface);

GLboolean st_texture_match_image	(	const struct pipe_texture *	pt,
		const struct gl_texture_image *	image,
		GLuint	face,
		GLuint	level
	)

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.

Definition at line 123 of file st_texture.c.

References pipe_texture::compressed, pipe_texture::depth, pipe_texture::format, pipe_texture::height, st_mesa_format_to_pipe_format(), and pipe_texture::width.

{
   /* Images with borders are never pulled into mipmap textures. 
    */
   if (image->Border) 
      return GL_FALSE;

   if (st_mesa_format_to_pipe_format(image->TexFormat->MesaFormat) != pt->format ||
       image->IsCompressed != pt->compressed)
      return GL_FALSE;

   /* Test image dimensions against the base level image adjusted for
    * minification.  This will also catch images not present in the
    * texture, changed targets, etc.
    */
   if (image->Width != pt->width[level] ||
       image->Height != pt->height[level] ||
       image->Depth != pt->depth[level])
      return GL_FALSE;

   return GL_TRUE;
}

static struct st_texture_object* st_texture_object

(

struct gl_texture_object *

obj

)

[static, read]

Definition at line 82 of file st_texture.h.

{
   return (struct st_texture_object *) obj;
}

GLuint st_texture_texel_offset	(	const struct pipe_texture *	pt,
		GLuint	face,
		GLuint	level,
		GLuint	col,
		GLuint	row,
		GLuint	img
	)

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