diff options
Diffstat (limited to 'src/gallium/drivers/r600/r600_texture.c')
| -rw-r--r-- | src/gallium/drivers/r600/r600_texture.c | 198 |
1 files changed, 198 insertions, 0 deletions
diff --git a/src/gallium/drivers/r600/r600_texture.c b/src/gallium/drivers/r600/r600_texture.c new file mode 100644 index 00000000000..708f9effa32 --- /dev/null +++ b/src/gallium/drivers/r600/r600_texture.c @@ -0,0 +1,198 @@ +/* + * Copyright 2010 Jerome Glisse <[email protected]> + * + * 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 + * on 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 + * THE AUTHOR(S) AND/OR THEIR 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. + * + * Authors: + * Jerome Glisse + * Corbin Simpson + */ +#include <pipe/p_screen.h> +#include <util/u_format.h> +#include <util/u_math.h> +#include <util/u_inlines.h> +#include <util/u_memory.h> +#include "r600_screen.h" +#include "r600_texture.h" + +unsigned long r600_texture_get_offset(struct r600_texture *rtex, unsigned level, unsigned zslice, unsigned face) +{ + unsigned long offset = rtex->offset[level]; + + switch (rtex->tex.target) { + case PIPE_TEXTURE_3D: + assert(face == 0); + return offset + zslice * rtex->layer_size[level]; + case PIPE_TEXTURE_CUBE: + assert(zslice == 0); + return offset + face * rtex->layer_size[level]; + default: + assert(zslice == 0 && face == 0); + return offset; + } +} + +static void r600_setup_miptree(struct r600_screen *rscreen, struct r600_texture *rtex) +{ + struct pipe_texture *ptex = &rtex->tex; + unsigned long w, h, stride, size, layer_size, i, offset; + + for (i = 0, offset = 0; i <= ptex->last_level; i++) { + w = u_minify(ptex->width0, i); + h = u_minify(ptex->height0, i); + stride = align(util_format_get_stride(ptex->format, w), 32); + layer_size = stride * h; + if (ptex->target == PIPE_TEXTURE_CUBE) + size = layer_size * 6; + else + size = layer_size * u_minify(ptex->depth0, i); + rtex->offset[i] = offset; + rtex->layer_size[i] = layer_size; + rtex->pitch[i] = stride / util_format_get_blocksize(ptex->format); + rtex->stride[i] = stride; + offset += align(size, 32); + } + rtex->size = offset; +} + +static struct pipe_texture *r600_texture_create(struct pipe_screen *screen, const struct pipe_texture *template) +{ + struct r600_texture *rtex = CALLOC_STRUCT(r600_texture); + struct r600_screen *rscreen = r600_screen(screen); + + if (!rtex) { + return NULL; + } + rtex->tex = *template; + pipe_reference_init(&rtex->tex.reference, 1); + rtex->tex.screen = screen; + r600_setup_miptree(rscreen, rtex); + rtex->buffer = screen->buffer_create(screen, 4096, PIPE_BUFFER_USAGE_PIXEL, rtex->size); + if (!rtex->buffer) { + FREE(rtex); + return NULL; + } + return (struct pipe_texture*)&rtex->tex; +} + +static void r600_texture_destroy(struct pipe_texture *ptex) +{ + struct r600_texture *rtex = (struct r600_texture*)ptex; + + pipe_buffer_reference(&rtex->buffer, NULL); + FREE(rtex); +} + +static struct pipe_surface *r600_get_tex_surface(struct pipe_screen *screen, + struct pipe_texture *texture, + unsigned face, unsigned level, + unsigned zslice, unsigned flags) +{ + struct r600_texture *rtex = (struct r600_texture*)texture; + struct pipe_surface *surface = CALLOC_STRUCT(pipe_surface); + unsigned long offset; + + if (surface == NULL) + return NULL; + offset = r600_texture_get_offset(rtex, level, zslice, face); + pipe_reference_init(&surface->reference, 1); + pipe_texture_reference(&surface->texture, texture); + surface->format = texture->format; + surface->width = u_minify(texture->width0, level); + surface->height = u_minify(texture->height0, level); + surface->offset = offset; + surface->usage = flags; + surface->zslice = zslice; + surface->texture = texture; + surface->face = face; + surface->level = level; + return surface; +} + +static void r600_tex_surface_destroy(struct pipe_surface *surface) +{ + pipe_texture_reference(&surface->texture, NULL); + FREE(surface); +} + +static struct pipe_texture *r600_texture_blanket(struct pipe_screen *screen, + const struct pipe_texture *base, + const unsigned *stride, + struct pipe_buffer *buffer) +{ + struct r600_texture *rtex; + + /* Support only 2D textures without mipmaps */ + if (base->target != PIPE_TEXTURE_2D || base->depth0 != 1 || base->last_level != 0) + return NULL; + rtex = CALLOC_STRUCT(r600_texture); + if (rtex == NULL) + return NULL; + rtex->tex = *base; + pipe_reference_init(&rtex->tex.reference, 1); + rtex->tex.screen = screen; + rtex->stride_override = *stride; + rtex->pitch[0] = *stride / util_format_get_blocksize(base->format); + rtex->stride[0] = *stride; + rtex->offset[0] = 0; + rtex->size = align(rtex->stride[0] * base->height0, 32); + pipe_buffer_reference(&rtex->buffer, buffer); + return &rtex->tex; +} + +static struct pipe_video_surface *r600_video_surface_create(struct pipe_screen *screen, + enum pipe_video_chroma_format chroma_format, + unsigned width, unsigned height) +{ + return NULL; +} + +static void r600_video_surface_destroy(struct pipe_video_surface *vsfc) +{ + FREE(vsfc); +} + +void r600_init_screen_texture_functions(struct pipe_screen *screen) +{ + screen->texture_create = r600_texture_create; + screen->texture_destroy = r600_texture_destroy; + screen->get_tex_surface = r600_get_tex_surface; + screen->tex_surface_destroy = r600_tex_surface_destroy; + screen->texture_blanket = r600_texture_blanket; + screen->video_surface_create = r600_video_surface_create; + screen->video_surface_destroy= r600_video_surface_destroy; +} + +boolean r600_get_texture_buffer(struct pipe_screen *screen, + struct pipe_texture *texture, + struct pipe_buffer **buffer, + unsigned *stride) +{ + struct r600_texture *rtex = (struct r600_texture*)texture; + + if (rtex == NULL) { + return FALSE; + } + pipe_buffer_reference(buffer, rtex->buffer); + if (stride) { + *stride = rtex->stride[0]; + } + return TRUE; +} |