diff options
Diffstat (limited to 'src/gallium/drivers/softpipe/sp_texture.c')
-rw-r--r-- | src/gallium/drivers/softpipe/sp_texture.c | 149 |
1 files changed, 117 insertions, 32 deletions
diff --git a/src/gallium/drivers/softpipe/sp_texture.c b/src/gallium/drivers/softpipe/sp_texture.c index 70f0932431..7caf2928b4 100644 --- a/src/gallium/drivers/softpipe/sp_texture.c +++ b/src/gallium/drivers/softpipe/sp_texture.c @@ -30,26 +30,21 @@ * Michel Dänzer <michel@tungstengraphics.com> */ -#include "pipe/p_context.h" #include "pipe/p_defines.h" #include "pipe/p_inlines.h" -#include "pipe/internal/p_winsys_screen.h" #include "util/u_math.h" #include "util/u_memory.h" #include "sp_context.h" #include "sp_state.h" #include "sp_texture.h" -#include "sp_tile_cache.h" #include "sp_screen.h" #include "sp_winsys.h" -/* Simple, maximally packed layout. - */ - - -/* Conventional allocation path for non-display textures: +/** + * Conventional allocation path for non-display textures: + * Use a simple, maximally packed layout. */ static boolean softpipe_texture_layout(struct pipe_screen *screen, @@ -89,6 +84,10 @@ softpipe_texture_layout(struct pipe_screen *screen, return spt->buffer != NULL; } + +/** + * Texture layout for simple color buffers. + */ static boolean softpipe_displaytarget_layout(struct pipe_screen *screen, struct softpipe_texture * spt) @@ -112,21 +111,25 @@ softpipe_displaytarget_layout(struct pipe_screen *screen, } - - - +/** + * Create new pipe_texture given the template information. + */ static struct pipe_texture * softpipe_texture_create(struct pipe_screen *screen, - const struct pipe_texture *templat) + const struct pipe_texture *template) { struct softpipe_texture *spt = CALLOC_STRUCT(softpipe_texture); if (!spt) return NULL; - spt->base = *templat; + spt->base = *template; pipe_reference_init(&spt->base.reference, 1); spt->base.screen = screen; + spt->pot = (util_is_power_of_two(template->width[0]) && + util_is_power_of_two(template->height[0]) && + util_is_power_of_two(template->depth[0])); + if (spt->base.tex_usage & (PIPE_TEXTURE_USAGE_DISPLAY_TARGET | PIPE_TEXTURE_USAGE_PRIMARY)) { if (!softpipe_displaytarget_layout(screen, spt)) @@ -145,6 +148,9 @@ softpipe_texture_create(struct pipe_screen *screen, } +/** + * Create a new pipe_texture which wraps an existing buffer. + */ static struct pipe_texture * softpipe_texture_blanket(struct pipe_screen * screen, const struct pipe_texture *base, @@ -188,6 +194,9 @@ softpipe_texture_destroy(struct pipe_texture *pt) } +/** + * Get a pipe_surface "view" into a texture. + */ static struct pipe_surface * softpipe_get_tex_surface(struct pipe_screen *screen, struct pipe_texture *pt, @@ -222,6 +231,13 @@ softpipe_get_tex_surface(struct pipe_screen *screen, if (ps->usage & PIPE_BUFFER_USAGE_GPU_READ) ps->usage |= PIPE_BUFFER_USAGE_CPU_READ; + if (ps->usage & (PIPE_BUFFER_USAGE_CPU_WRITE | + PIPE_BUFFER_USAGE_GPU_WRITE)) { + /* Mark the surface as dirty. The tile cache will look for this. */ + spt->timestamp++; + softpipe_screen(screen)->timestamp++; + } + ps->face = face; ps->level = level; ps->zslice = zslice; @@ -241,6 +257,9 @@ softpipe_get_tex_surface(struct pipe_screen *screen, } +/** + * Free a pipe_surface which was created with softpipe_get_tex_surface(). + */ static void softpipe_tex_surface_destroy(struct pipe_surface *surf) { @@ -254,6 +273,18 @@ softpipe_tex_surface_destroy(struct pipe_surface *surf) } +/** + * Geta pipe_transfer object which is used for moving data in/out of + * a texture object. + * \param face one of PIPE_TEX_FACE_x or 0 + * \param level texture mipmap level + * \param zslice 2D slice of a 3D texture + * \param usage one of PIPE_TRANSFER_READ/WRITE/READ_WRITE + * \param x X position of region to read/write + * \param y Y position of region to read/write + * \param width width of region to read/write + * \param height height of region to read/write + */ static struct pipe_transfer * softpipe_get_tex_transfer(struct pipe_screen *screen, struct pipe_texture *texture, @@ -303,6 +334,10 @@ softpipe_get_tex_transfer(struct pipe_screen *screen, } +/** + * Free a pipe_transfer object which was created with + * softpipe_get_tex_transfer(). + */ static void softpipe_tex_transfer_destroy(struct pipe_transfer *transfer) { @@ -316,40 +351,33 @@ softpipe_tex_transfer_destroy(struct pipe_transfer *transfer) } +/** + * Create memory mapping for given pipe_transfer object. + */ static void * softpipe_transfer_map( struct pipe_screen *screen, struct pipe_transfer *transfer ) { ubyte *map, *xfer_map; struct softpipe_texture *spt; - unsigned flags = 0; assert(transfer->texture); spt = softpipe_texture(transfer->texture); - if (transfer->usage != PIPE_TRANSFER_READ) { - flags |= PIPE_BUFFER_USAGE_CPU_WRITE; - } - - if (transfer->usage != PIPE_TRANSFER_WRITE) { - flags |= PIPE_BUFFER_USAGE_CPU_READ; - } - - map = pipe_buffer_map(screen, spt->buffer, flags); + map = pipe_buffer_map(screen, spt->buffer, pipe_transfer_buffer_flags(transfer)); if (map == NULL) return NULL; /* May want to different things here depending on read/write nature * of the map: */ - if (transfer->texture && transfer->usage != PIPE_TRANSFER_READ) - { + if (transfer->texture && (transfer->usage & PIPE_TRANSFER_WRITE)) { /* Do something to notify sharing contexts of a texture change. * In softpipe, that would mean flushing the texture cache. */ softpipe_screen(screen)->timestamp++; } - + xfer_map = map + softpipe_transfer(transfer)->offset + transfer->y / transfer->block.height * transfer->stride + transfer->x / transfer->block.width * transfer->block.size; @@ -358,9 +386,12 @@ softpipe_transfer_map( struct pipe_screen *screen, } +/** + * Unmap memory mapping for given pipe_transfer object. + */ static void softpipe_transfer_unmap(struct pipe_screen *screen, - struct pipe_transfer *transfer) + struct pipe_transfer *transfer) { struct softpipe_texture *spt; @@ -369,16 +400,63 @@ softpipe_transfer_unmap(struct pipe_screen *screen, pipe_buffer_unmap( screen, spt->buffer ); - if (transfer->usage != PIPE_TRANSFER_READ) { + if (transfer->usage & PIPE_TRANSFER_WRITE) { /* Mark the texture as dirty to expire the tile caches. */ - spt->modified = TRUE; + spt->timestamp++; } } -void -softpipe_init_texture_funcs(struct softpipe_context *sp) +static struct pipe_video_surface* +softpipe_video_surface_create(struct pipe_screen *screen, + enum pipe_video_chroma_format chroma_format, + unsigned width, unsigned height) +{ + struct softpipe_video_surface *sp_vsfc; + struct pipe_texture template; + + assert(screen); + assert(width && height); + + sp_vsfc = CALLOC_STRUCT(softpipe_video_surface); + if (!sp_vsfc) + return NULL; + + pipe_reference_init(&sp_vsfc->base.reference, 1); + sp_vsfc->base.screen = screen; + sp_vsfc->base.chroma_format = chroma_format; + /*sp_vsfc->base.surface_format = PIPE_VIDEO_SURFACE_FORMAT_VUYA;*/ + sp_vsfc->base.width = width; + sp_vsfc->base.height = height; + + memset(&template, 0, sizeof(struct pipe_texture)); + template.target = PIPE_TEXTURE_2D; + template.format = PIPE_FORMAT_X8R8G8B8_UNORM; + template.last_level = 0; + /* vl_mpeg12_mc_renderer expects this when it's initialized with pot_buffers=true */ + template.width[0] = util_next_power_of_two(width); + template.height[0] = util_next_power_of_two(height); + template.depth[0] = 1; + pf_get_block(template.format, &template.block); + template.tex_usage = PIPE_TEXTURE_USAGE_SAMPLER | PIPE_TEXTURE_USAGE_RENDER_TARGET; + + sp_vsfc->tex = screen->texture_create(screen, &template); + if (!sp_vsfc->tex) { + FREE(sp_vsfc); + return NULL; + } + + return &sp_vsfc->base; +} + + +static void +softpipe_video_surface_destroy(struct pipe_video_surface *vsfc) { + struct softpipe_video_surface *sp_vsfc = softpipe_video_surface(vsfc); + + pipe_texture_reference(&sp_vsfc->tex, NULL); + FREE(sp_vsfc); } @@ -396,15 +474,22 @@ softpipe_init_screen_texture_funcs(struct pipe_screen *screen) screen->tex_transfer_destroy = softpipe_tex_transfer_destroy; screen->transfer_map = softpipe_transfer_map; screen->transfer_unmap = softpipe_transfer_unmap; + + screen->video_surface_create = softpipe_video_surface_create; + screen->video_surface_destroy = softpipe_video_surface_destroy; } +/** + * Return pipe_buffer handle and stride for given texture object. + * XXX used for??? + */ boolean softpipe_get_texture_buffer( struct pipe_texture *texture, struct pipe_buffer **buf, unsigned *stride ) { - struct softpipe_texture *tex = (struct softpipe_texture *)texture; + struct softpipe_texture *tex = (struct softpipe_texture *) texture; if (!tex) return FALSE; |