| /* |
| * Copyright 2008 Corbin Simpson <MostAwesomeDude@gmail.com> |
| * |
| * 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. */ |
| |
| #include "pipe/p_screen.h" |
| |
| #include "util/u_math.h" |
| #include "util/u_memory.h" |
| |
| #include "r300_context.h" |
| #include "r300_texture.h" |
| #include "r300_screen.h" |
| |
| static void r300_setup_texture_state(struct r300_texture* tex, boolean is_r500) |
| { |
| struct r300_texture_state* state = &tex->state; |
| struct pipe_texture *pt = &tex->tex; |
| |
| state->format0 = R300_TX_WIDTH((pt->width[0] - 1) & 0x7ff) | |
| R300_TX_HEIGHT((pt->height[0] - 1) & 0x7ff); |
| |
| if (tex->is_npot) { |
| /* rectangles love this */ |
| state->format0 |= R300_TX_PITCH_EN; |
| state->format2 = (tex->pitch[0] - 1) & 0x1fff; |
| } else { |
| /* power of two textures (3D, mipmaps, and no pitch) */ |
| state->format0 |= R300_TX_DEPTH(util_logbase2(pt->depth[0]) & 0xf) | |
| R300_TX_NUM_LEVELS(pt->last_level & 0xf); |
| } |
| |
| state->format1 = r300_translate_texformat(pt->format); |
| if (pt->target == PIPE_TEXTURE_CUBE) { |
| state->format1 |= R300_TX_FORMAT_CUBIC_MAP; |
| } |
| if (pt->target == PIPE_TEXTURE_3D) { |
| state->format1 |= R300_TX_FORMAT_3D; |
| } |
| |
| /* large textures on r500 */ |
| if (is_r500) |
| { |
| if (pt->width[0] > 2048) { |
| state->format2 |= R500_TXWIDTH_BIT11; |
| } |
| if (pt->height[0] > 2048) { |
| state->format2 |= R500_TXHEIGHT_BIT11; |
| } |
| } |
| assert(is_r500 || (pt->width[0] <= 2048 && pt->height[0] <= 2048)); |
| |
| debug_printf("r300: Set texture state (%dx%d, %d levels)\n", |
| pt->width[0], pt->height[0], pt->last_level); |
| } |
| |
| unsigned r300_texture_get_offset(struct r300_texture* tex, unsigned level, |
| unsigned zslice, unsigned face) |
| { |
| unsigned offset = tex->offset[level]; |
| |
| switch (tex->tex.target) { |
| case PIPE_TEXTURE_3D: |
| assert(face == 0); |
| return offset + zslice * tex->layer_size[level]; |
| |
| case PIPE_TEXTURE_CUBE: |
| assert(zslice == 0); |
| return offset + face * tex->layer_size[level]; |
| |
| default: |
| assert(zslice == 0 && face == 0); |
| return offset; |
| } |
| } |
| |
| /** |
| * Return the stride, in bytes, of the texture images of the given texture |
| * at the given level. |
| */ |
| unsigned r300_texture_get_stride(struct r300_texture* tex, unsigned level) |
| { |
| if (tex->stride_override) |
| return tex->stride_override; |
| |
| if (level > tex->tex.last_level) { |
| debug_printf("%s: level (%u) > last_level (%u)\n", __FUNCTION__, |
| level, tex->tex.last_level); |
| return 0; |
| } |
| |
| return align(pf_get_stride(&tex->tex.block, tex->tex.width[level]), 32); |
| } |
| |
| static void r300_setup_miptree(struct r300_texture* tex) |
| { |
| struct pipe_texture* base = &tex->tex; |
| int stride, size, layer_size; |
| int i; |
| |
| for (i = 0; i <= base->last_level; i++) { |
| if (i > 0) { |
| base->width[i] = minify(base->width[i-1]); |
| base->height[i] = minify(base->height[i-1]); |
| base->depth[i] = minify(base->depth[i-1]); |
| } |
| |
| base->nblocksx[i] = pf_get_nblocksx(&base->block, base->width[i]); |
| base->nblocksy[i] = pf_get_nblocksy(&base->block, base->height[i]); |
| |
| stride = r300_texture_get_stride(tex, i); |
| layer_size = stride * base->nblocksy[i]; |
| |
| if (base->target == PIPE_TEXTURE_CUBE) |
| size = layer_size * 6; |
| else |
| size = layer_size * base->depth[i]; |
| |
| tex->offset[i] = align(tex->size, 32); |
| tex->size = tex->offset[i] + size; |
| tex->layer_size[i] = layer_size; |
| tex->pitch[i] = stride / base->block.size; |
| |
| debug_printf("r300: Texture miptree: Level %d " |
| "(%dx%dx%d px, pitch %d bytes)\n", |
| i, base->width[i], base->height[i], base->depth[i], |
| stride); |
| } |
| } |
| |
| static void r300_setup_flags(struct r300_texture* tex) |
| { |
| tex->is_npot = !util_is_power_of_two(tex->tex.width[0]) || |
| !util_is_power_of_two(tex->tex.height[0]); |
| } |
| |
| /* Create a new texture. */ |
| static struct pipe_texture* |
| r300_texture_create(struct pipe_screen* screen, |
| const struct pipe_texture* template) |
| { |
| struct r300_texture* tex = CALLOC_STRUCT(r300_texture); |
| |
| if (!tex) { |
| return NULL; |
| } |
| |
| tex->tex = *template; |
| pipe_reference_init(&tex->tex.reference, 1); |
| tex->tex.screen = screen; |
| |
| r300_setup_flags(tex); |
| r300_setup_miptree(tex); |
| r300_setup_texture_state(tex, r300_screen(screen)->caps->is_r500); |
| |
| tex->buffer = screen->buffer_create(screen, 1024, |
| PIPE_BUFFER_USAGE_PIXEL, |
| tex->size); |
| |
| if (!tex->buffer) { |
| FREE(tex); |
| return NULL; |
| } |
| |
| return (struct pipe_texture*)tex; |
| } |
| |
| static void r300_texture_destroy(struct pipe_texture* texture) |
| { |
| struct r300_texture* tex = (struct r300_texture*)texture; |
| |
| pipe_buffer_reference(&tex->buffer, NULL); |
| |
| FREE(tex); |
| } |
| |
| static struct pipe_surface* r300_get_tex_surface(struct pipe_screen* screen, |
| struct pipe_texture* texture, |
| unsigned face, |
| unsigned level, |
| unsigned zslice, |
| unsigned flags) |
| { |
| struct r300_texture* tex = (struct r300_texture*)texture; |
| struct pipe_surface* surface = CALLOC_STRUCT(pipe_surface); |
| unsigned offset; |
| |
| offset = r300_texture_get_offset(tex, level, zslice, face); |
| |
| if (surface) { |
| pipe_reference_init(&surface->reference, 1); |
| pipe_texture_reference(&surface->texture, texture); |
| surface->format = texture->format; |
| surface->width = texture->width[level]; |
| surface->height = texture->height[level]; |
| surface->offset = offset; |
| surface->usage = flags; |
| surface->zslice = zslice; |
| surface->texture = texture; |
| surface->face = face; |
| surface->level = level; |
| } |
| |
| return surface; |
| } |
| |
| static void r300_tex_surface_destroy(struct pipe_surface* s) |
| { |
| pipe_texture_reference(&s->texture, NULL); |
| FREE(s); |
| } |
| |
| static struct pipe_texture* |
| r300_texture_blanket(struct pipe_screen* screen, |
| const struct pipe_texture* base, |
| const unsigned* stride, |
| struct pipe_buffer* buffer) |
| { |
| struct r300_texture* tex; |
| |
| /* Support only 2D textures without mipmaps */ |
| if (base->target != PIPE_TEXTURE_2D || |
| base->depth[0] != 1 || |
| base->last_level != 0) { |
| return NULL; |
| } |
| |
| tex = CALLOC_STRUCT(r300_texture); |
| if (!tex) { |
| return NULL; |
| } |
| |
| tex->tex = *base; |
| pipe_reference_init(&tex->tex.reference, 1); |
| tex->tex.screen = screen; |
| |
| tex->stride_override = *stride; |
| tex->pitch[0] = *stride / base->block.size; |
| |
| r300_setup_flags(tex); |
| r300_setup_texture_state(tex, r300_screen(screen)->caps->is_r500); |
| |
| pipe_buffer_reference(&tex->buffer, buffer); |
| |
| return (struct pipe_texture*)tex; |
| } |
| |
| static struct pipe_video_surface * |
| r300_video_surface_create(struct pipe_screen *screen, |
| enum pipe_video_chroma_format chroma_format, |
| unsigned width, unsigned height) |
| { |
| struct r300_video_surface *r300_vsfc; |
| struct pipe_texture template; |
| |
| assert(screen); |
| assert(width && height); |
| |
| r300_vsfc = CALLOC_STRUCT(r300_video_surface); |
| if (!r300_vsfc) |
| return NULL; |
| |
| pipe_reference_init(&r300_vsfc->base.reference, 1); |
| r300_vsfc->base.screen = screen; |
| r300_vsfc->base.chroma_format = chroma_format; |
| r300_vsfc->base.width = width; |
| r300_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; |
| 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; |
| |
| r300_vsfc->tex = screen->texture_create(screen, &template); |
| if (!r300_vsfc->tex) |
| { |
| FREE(r300_vsfc); |
| return NULL; |
| } |
| |
| return &r300_vsfc->base; |
| } |
| |
| static void r300_video_surface_destroy(struct pipe_video_surface *vsfc) |
| { |
| struct r300_video_surface *r300_vsfc = r300_video_surface(vsfc); |
| pipe_texture_reference(&r300_vsfc->tex, NULL); |
| FREE(r300_vsfc); |
| } |
| |
| void r300_init_screen_texture_functions(struct pipe_screen* screen) |
| { |
| screen->texture_create = r300_texture_create; |
| screen->texture_destroy = r300_texture_destroy; |
| screen->get_tex_surface = r300_get_tex_surface; |
| screen->tex_surface_destroy = r300_tex_surface_destroy; |
| screen->texture_blanket = r300_texture_blanket; |
| |
| screen->video_surface_create = r300_video_surface_create; |
| screen->video_surface_destroy= r300_video_surface_destroy; |
| } |
| |
| boolean r300_get_texture_buffer(struct pipe_texture* texture, |
| struct pipe_buffer** buffer, |
| unsigned* stride) |
| { |
| struct r300_texture* tex = (struct r300_texture*)texture; |
| if (!tex) { |
| return FALSE; |
| } |
| |
| pipe_buffer_reference(buffer, tex->buffer); |
| |
| if (stride) { |
| *stride = r300_texture_get_stride(tex, 0); |
| } |
| |
| return TRUE; |
| } |