diff options
Diffstat (limited to 'src/gallium/drivers/i915/i915_texture.c')
| -rw-r--r-- | src/gallium/drivers/i915/i915_texture.c | 930 |
1 files changed, 0 insertions, 930 deletions
diff --git a/src/gallium/drivers/i915/i915_texture.c b/src/gallium/drivers/i915/i915_texture.c deleted file mode 100644 index 7ba222c78b7..00000000000 --- a/src/gallium/drivers/i915/i915_texture.c +++ /dev/null @@ -1,930 +0,0 @@ -/************************************************************************** - * - * Copyright 2006 Tungsten Graphics, Inc., Cedar Park, Texas. - * All Rights Reserved. - * - * 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 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 TUNGSTEN GRAPHICS AND/OR ITS 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: - * Keith Whitwell <[email protected]> - * Michel Dänzer <[email protected]> - */ - -#include "pipe/p_state.h" -#include "pipe/p_context.h" -#include "pipe/p_defines.h" -#include "util/u_inlines.h" -#include "util/u_format.h" -#include "util/u_math.h" -#include "util/u_memory.h" - -#include "i915_context.h" -#include "i915_texture.h" -#include "i915_screen.h" -#include "intel_winsys.h" - - -/* - * Helper function and arrays - */ - - -/** - * Initial offset for Cube map. - */ -static const int initial_offsets[6][2] = { - {0, 0}, - {0, 2}, - {1, 0}, - {1, 2}, - {1, 1}, - {1, 3} -}; - -/** - * Step offsets for Cube map. - */ -static const int step_offsets[6][2] = { - {0, 2}, - {0, 2}, - {-1, 2}, - {-1, 2}, - {-1, 1}, - {-1, 1} -}; - -/* XXX really need twice the size if x is already pot? - Otherwise just use util_next_power_of_two? -*/ -static unsigned -power_of_two(unsigned x) -{ - unsigned value = 1; - while (value < x) - value = value << 1; - return value; -} - -/* - * More advanced helper funcs - */ - - -static void -i915_miptree_set_level_info(struct i915_texture *tex, - unsigned level, - unsigned nr_images, - unsigned w, unsigned h, unsigned d) -{ - assert(level < PIPE_MAX_TEXTURE_LEVELS); - - tex->nr_images[level] = nr_images; - - /* - DBG("%s level %d size: %d,%d,%d offset %d,%d (0x%x)\n", __FUNCTION__, - level, w, h, d, x, y, tex->level_offset[level]); - */ - - /* Not sure when this would happen, but anyway: - */ - if (tex->image_offset[level]) { - FREE(tex->image_offset[level]); - tex->image_offset[level] = NULL; - } - - assert(nr_images); - assert(!tex->image_offset[level]); - - tex->image_offset[level] = (unsigned *) MALLOC(nr_images * sizeof(unsigned)); - tex->image_offset[level][0] = 0; -} - -static void -i915_miptree_set_image_offset(struct i915_texture *tex, - unsigned level, unsigned img, unsigned x, unsigned y) -{ - if (img == 0 && level == 0) - assert(x == 0 && y == 0); - - assert(img < tex->nr_images[level]); - - tex->image_offset[level][img] = y * tex->stride + x * util_format_get_blocksize(tex->base.format); - - /* - printf("%s level %d img %d pos %d,%d image_offset %x\n", - __FUNCTION__, level, img, x, y, tex->image_offset[level][img]); - */ -} - - -/* - * i915 layout functions, some used by i945 - */ - - -/** - * Special case to deal with scanout textures. - */ -static boolean -i915_scanout_layout(struct i915_texture *tex) -{ - struct pipe_texture *pt = &tex->base; - - if (pt->last_level > 0 || util_format_get_blocksize(pt->format) != 4) - return FALSE; - - i915_miptree_set_level_info(tex, 0, 1, - pt->width0, - pt->height0, - 1); - i915_miptree_set_image_offset(tex, 0, 0, 0, 0); - - if (pt->width0 >= 240) { - tex->stride = power_of_two(util_format_get_stride(pt->format, pt->width0)); - tex->total_nblocksy = align(util_format_get_nblocksy(pt->format, pt->height0), 8); - tex->hw_tiled = INTEL_TILE_X; - } else if (pt->width0 == 64 && pt->height0 == 64) { - tex->stride = power_of_two(util_format_get_stride(pt->format, pt->width0)); - tex->total_nblocksy = align(util_format_get_nblocksy(pt->format, pt->height0), 8); - } else { - return FALSE; - } - - debug_printf("%s size: %d,%d,%d offset %d,%d (0x%x)\n", __FUNCTION__, - pt->width0, pt->height0, util_format_get_blocksize(pt->format), - tex->stride, tex->total_nblocksy, tex->stride * tex->total_nblocksy); - - return TRUE; -} - -/** - * Special case to deal with shared textures. - */ -static boolean -i915_display_target_layout(struct i915_texture *tex) -{ - struct pipe_texture *pt = &tex->base; - - if (pt->last_level > 0 || util_format_get_blocksize(pt->format) != 4) - return FALSE; - - /* fallback to normal textures for small textures */ - if (pt->width0 < 240) - return FALSE; - - i915_miptree_set_level_info(tex, 0, 1, - pt->width0, - pt->height0, - 1); - i915_miptree_set_image_offset(tex, 0, 0, 0, 0); - - tex->stride = power_of_two(util_format_get_stride(pt->format, pt->width0)); - tex->total_nblocksy = align(util_format_get_nblocksy(pt->format, pt->height0), 8); - tex->hw_tiled = INTEL_TILE_X; - - debug_printf("%s size: %d,%d,%d offset %d,%d (0x%x)\n", __FUNCTION__, - pt->width0, pt->height0, util_format_get_blocksize(pt->format), - tex->stride, tex->total_nblocksy, tex->stride * tex->total_nblocksy); - - return TRUE; -} - -static void -i915_miptree_layout_2d(struct i915_texture *tex) -{ - struct pipe_texture *pt = &tex->base; - unsigned level; - unsigned width = pt->width0; - unsigned height = pt->height0; - unsigned nblocksy = util_format_get_nblocksy(pt->format, pt->width0); - - /* used for scanouts that need special layouts */ - if (pt->tex_usage & PIPE_TEXTURE_USAGE_PRIMARY) - if (i915_scanout_layout(tex)) - return; - - /* for shared buffers we use something very like scanout */ - if (pt->tex_usage & PIPE_TEXTURE_USAGE_DISPLAY_TARGET) - if (i915_display_target_layout(tex)) - return; - - tex->stride = align(util_format_get_stride(pt->format, pt->width0), 4); - tex->total_nblocksy = 0; - - for (level = 0; level <= pt->last_level; level++) { - i915_miptree_set_level_info(tex, level, 1, width, height, 1); - i915_miptree_set_image_offset(tex, level, 0, 0, tex->total_nblocksy); - - nblocksy = align(MAX2(2, nblocksy), 2); - - tex->total_nblocksy += nblocksy; - - width = u_minify(width, 1); - height = u_minify(height, 1); - nblocksy = util_format_get_nblocksy(pt->format, height); - } -} - -static void -i915_miptree_layout_3d(struct i915_texture *tex) -{ - struct pipe_texture *pt = &tex->base; - unsigned level; - - unsigned width = pt->width0; - unsigned height = pt->height0; - unsigned depth = pt->depth0; - unsigned nblocksy = util_format_get_nblocksy(pt->format, pt->height0); - unsigned stack_nblocksy = 0; - - /* Calculate the size of a single slice. - */ - tex->stride = align(util_format_get_stride(pt->format, pt->width0), 4); - - /* XXX: hardware expects/requires 9 levels at minimum. - */ - for (level = 0; level <= MAX2(8, pt->last_level); level++) { - i915_miptree_set_level_info(tex, level, depth, width, height, depth); - - stack_nblocksy += MAX2(2, nblocksy); - - width = u_minify(width, 1); - height = u_minify(height, 1); - nblocksy = util_format_get_nblocksy(pt->format, height); - } - - /* Fixup depth image_offsets: - */ - for (level = 0; level <= pt->last_level; level++) { - unsigned i; - for (i = 0; i < depth; i++) - i915_miptree_set_image_offset(tex, level, i, 0, i * stack_nblocksy); - - depth = u_minify(depth, 1); - } - - /* Multiply slice size by texture depth for total size. It's - * remarkable how wasteful of memory the i915 texture layouts - * are. They are largely fixed in the i945. - */ - tex->total_nblocksy = stack_nblocksy * pt->depth0; -} - -static void -i915_miptree_layout_cube(struct i915_texture *tex) -{ - struct pipe_texture *pt = &tex->base; - unsigned width = pt->width0, height = pt->height0; - const unsigned nblocks = util_format_get_nblocksx(pt->format, pt->width0); - unsigned level; - unsigned face; - - assert(width == height); /* cubemap images are square */ - - /* double pitch for cube layouts */ - tex->stride = align(nblocks * util_format_get_blocksize(pt->format) * 2, 4); - tex->total_nblocksy = nblocks * 4; - - for (level = 0; level <= pt->last_level; level++) { - i915_miptree_set_level_info(tex, level, 6, width, height, 1); - width /= 2; - height /= 2; - } - - for (face = 0; face < 6; face++) { - unsigned x = initial_offsets[face][0] * nblocks; - unsigned y = initial_offsets[face][1] * nblocks; - unsigned d = nblocks; - - for (level = 0; level <= pt->last_level; level++) { - i915_miptree_set_image_offset(tex, level, face, x, y); - d >>= 1; - x += step_offsets[face][0] * d; - y += step_offsets[face][1] * d; - } - } -} - -static boolean -i915_miptree_layout(struct i915_texture * tex) -{ - struct pipe_texture *pt = &tex->base; - - switch (pt->target) { - case PIPE_TEXTURE_1D: - case PIPE_TEXTURE_2D: - i915_miptree_layout_2d(tex); - break; - case PIPE_TEXTURE_3D: - i915_miptree_layout_3d(tex); - break; - case PIPE_TEXTURE_CUBE: - i915_miptree_layout_cube(tex); - break; - default: - assert(0); - return FALSE; - } - - return TRUE; -} - - -/* - * i945 layout functions - */ - - -static void -i945_miptree_layout_2d(struct i915_texture *tex) -{ - struct pipe_texture *pt = &tex->base; - const int align_x = 2, align_y = 4; - unsigned level; - unsigned x = 0; - unsigned y = 0; - unsigned width = pt->width0; - unsigned height = pt->height0; - unsigned nblocksx = util_format_get_nblocksx(pt->format, pt->width0); - unsigned nblocksy = util_format_get_nblocksy(pt->format, pt->height0); - - /* used for scanouts that need special layouts */ - if (tex->base.tex_usage & PIPE_TEXTURE_USAGE_PRIMARY) - if (i915_scanout_layout(tex)) - return; - - /* for shared buffers we use some very like scanout */ - if (tex->base.tex_usage & PIPE_TEXTURE_USAGE_DISPLAY_TARGET) - if (i915_display_target_layout(tex)) - return; - - tex->stride = align(util_format_get_stride(pt->format, pt->width0), 4); - - /* May need to adjust pitch to accomodate the placement of - * the 2nd mipmap level. This occurs when the alignment - * constraints of mipmap placement push the right edge of the - * 2nd mipmap level out past the width of its parent. - */ - if (pt->last_level > 0) { - unsigned mip1_nblocksx - = align(util_format_get_nblocksx(pt->format, u_minify(width, 1)), align_x) - + util_format_get_nblocksx(pt->format, u_minify(width, 2)); - - if (mip1_nblocksx > nblocksx) - tex->stride = mip1_nblocksx * util_format_get_blocksize(pt->format); - } - - /* Pitch must be a whole number of dwords - */ - tex->stride = align(tex->stride, 64); - tex->total_nblocksy = 0; - - for (level = 0; level <= pt->last_level; level++) { - i915_miptree_set_level_info(tex, level, 1, width, height, 1); - i915_miptree_set_image_offset(tex, level, 0, x, y); - - nblocksy = align(nblocksy, align_y); - - /* Because the images are packed better, the final offset - * might not be the maximal one: - */ - tex->total_nblocksy = MAX2(tex->total_nblocksy, y + nblocksy); - - /* Layout_below: step right after second mipmap level. - */ - if (level == 1) { - x += align(nblocksx, align_x); - } - else { - y += nblocksy; - } - - width = u_minify(width, 1); - height = u_minify(height, 1); - nblocksx = util_format_get_nblocksx(pt->format, width); - nblocksy = util_format_get_nblocksy(pt->format, height); - } -} - -static void -i945_miptree_layout_3d(struct i915_texture *tex) -{ - struct pipe_texture *pt = &tex->base; - unsigned width = pt->width0; - unsigned height = pt->height0; - unsigned depth = pt->depth0; - unsigned nblocksy = util_format_get_nblocksy(pt->format, pt->width0); - unsigned pack_x_pitch, pack_x_nr; - unsigned pack_y_pitch; - unsigned level; - - tex->stride = align(util_format_get_stride(pt->format, pt->width0), 4); - tex->total_nblocksy = 0; - - pack_y_pitch = MAX2(nblocksy, 2); - pack_x_pitch = tex->stride / util_format_get_blocksize(pt->format); - pack_x_nr = 1; - - for (level = 0; level <= pt->last_level; level++) { - int x = 0; - int y = 0; - unsigned q, j; - - i915_miptree_set_level_info(tex, level, depth, width, height, depth); - - for (q = 0; q < depth;) { - for (j = 0; j < pack_x_nr && q < depth; j++, q++) { - i915_miptree_set_image_offset(tex, level, q, x, y + tex->total_nblocksy); - x += pack_x_pitch; - } - - x = 0; - y += pack_y_pitch; - } - - tex->total_nblocksy += y; - - if (pack_x_pitch > 4) { - pack_x_pitch >>= 1; - pack_x_nr <<= 1; - assert(pack_x_pitch * pack_x_nr * util_format_get_blocksize(pt->format) <= tex->stride); - } - - if (pack_y_pitch > 2) { - pack_y_pitch >>= 1; - } - - width = u_minify(width, 1); - height = u_minify(height, 1); - depth = u_minify(depth, 1); - nblocksy = util_format_get_nblocksy(pt->format, height); - } -} - -static void -i945_miptree_layout_cube(struct i915_texture *tex) -{ - struct pipe_texture *pt = &tex->base; - unsigned level; - - const unsigned nblocks = util_format_get_nblocksx(pt->format, pt->width0); - unsigned face; - unsigned width = pt->width0; - unsigned height = pt->height0; - - /* - printf("%s %i, %i\n", __FUNCTION__, pt->width0, pt->height0); - */ - - assert(width == height); /* cubemap images are square */ - - /* - * XXX Should only be used for compressed formats. But lets - * keep this code active just in case. - * - * Depending on the size of the largest images, pitch can be - * determined either by the old-style packing of cubemap faces, - * or the final row of 4x4, 2x2 and 1x1 faces below this. - */ - if (nblocks > 32) - tex->stride = align(nblocks * util_format_get_blocksize(pt->format) * 2, 4); - else - tex->stride = 14 * 8 * util_format_get_blocksize(pt->format); - - tex->total_nblocksy = nblocks * 4; - - /* Set all the levels to effectively occupy the whole rectangular region. - */ - for (level = 0; level <= pt->last_level; level++) { - i915_miptree_set_level_info(tex, level, 6, width, height, 1); - width /= 2; - height /= 2; - } - - for (face = 0; face < 6; face++) { - unsigned x = initial_offsets[face][0] * nblocks; - unsigned y = initial_offsets[face][1] * nblocks; - unsigned d = nblocks; - -#if 0 /* Fix and enable this code for compressed formats */ - if (nblocks == 4 && face >= 4) { - y = tex->total_height - 4; - x = (face - 4) * 8; - } - else if (nblocks < 4 && (face > 0)) { - y = tex->total_height - 4; - x = face * 8; - } -#endif - - for (level = 0; level <= pt->last_level; level++) { - i915_miptree_set_image_offset(tex, level, face, x, y); - - d >>= 1; - -#if 0 /* Fix and enable this code for compressed formats */ - switch (d) { - case 4: - switch (face) { - case PIPE_TEX_FACE_POS_X: - case PIPE_TEX_FACE_NEG_X: - x += step_offsets[face][0] * d; - y += step_offsets[face][1] * d; - break; - case PIPE_TEX_FACE_POS_Y: - case PIPE_TEX_FACE_NEG_Y: - y += 12; - x -= 8; - break; - case PIPE_TEX_FACE_POS_Z: - case PIPE_TEX_FACE_NEG_Z: - y = tex->total_height - 4; - x = (face - 4) * 8; - break; - } - case 2: - y = tex->total_height - 4; - x = 16 + face * 8; - break; - - case 1: - x += 48; - break; - default: -#endif - x += step_offsets[face][0] * d; - y += step_offsets[face][1] * d; -#if 0 - break; - } -#endif - } - } -} - -static boolean -i945_miptree_layout(struct i915_texture * tex) -{ - struct pipe_texture *pt = &tex->base; - - switch (pt->target) { - case PIPE_TEXTURE_1D: - case PIPE_TEXTURE_2D: - i945_miptree_layout_2d(tex); - break; - case PIPE_TEXTURE_3D: - i945_miptree_layout_3d(tex); - break; - case PIPE_TEXTURE_CUBE: - i945_miptree_layout_cube(tex); - break; - default: - assert(0); - return FALSE; - } - - return TRUE; -} - - -/* - * Screen texture functions - */ - - -static struct pipe_texture * -i915_texture_create(struct pipe_screen *screen, - const struct pipe_texture *templat) -{ - struct i915_screen *is = i915_screen(screen); - struct intel_winsys *iws = is->iws; - struct i915_texture *tex = CALLOC_STRUCT(i915_texture); - size_t tex_size; - unsigned buf_usage = 0; - - if (!tex) - return NULL; - - tex->base = *templat; - pipe_reference_init(&tex->base.reference, 1); - tex->base.screen = screen; - - if (is->is_i945) { - if (!i945_miptree_layout(tex)) - goto fail; - } else { - if (!i915_miptree_layout(tex)) - goto fail; - } - - tex_size = tex->stride * tex->total_nblocksy; - - - - /* for scanouts and cursors, cursors arn't scanouts */ - if (templat->tex_usage & PIPE_TEXTURE_USAGE_PRIMARY && templat->width0 != 64) - buf_usage = INTEL_NEW_SCANOUT; - else - buf_usage = INTEL_NEW_TEXTURE; - - tex->buffer = iws->buffer_create(iws, tex_size, 64, buf_usage); - if (!tex->buffer) - goto fail; - - /* setup any hw fences */ - if (tex->hw_tiled) { - assert(tex->sw_tiled == INTEL_TILE_NONE); - iws->buffer_set_fence_reg(iws, tex->buffer, tex->stride, tex->hw_tiled); - } - - -#if 0 - void *ptr = ws->buffer_map(ws, tex->buffer, - PIPE_BUFFER_USAGE_CPU_WRITE); - memset(ptr, 0x80, tex_size); - ws->buffer_unmap(ws, tex->buffer); -#endif - - return &tex->base; - -fail: - FREE(tex); - return NULL; -} - -static struct pipe_texture * -i915_texture_blanket(struct pipe_screen * screen, - const struct pipe_texture *base, - const unsigned *stride, - struct pipe_buffer *buffer) -{ -#if 0 - struct i915_texture *tex; - assert(screen); - - /* Only supports one type */ - if (base->target != PIPE_TEXTURE_2D || - base->last_level != 0 || - base->depth0 != 1) { - return NULL; - } - - tex = CALLOC_STRUCT(i915_texture); - if (!tex) - return NULL; - - tex->base = *base; - pipe_reference_init(&tex->base.reference, 1); - tex->base.screen = screen; - - tex->stride = stride[0]; - - i915_miptree_set_level_info(tex, 0, 1, base->width0, base->height0, 1); - i915_miptree_set_image_offset(tex, 0, 0, 0, 0); - - pipe_buffer_reference(&tex->buffer, buffer); - - return &tex->base; -#else - return NULL; -#endif -} - -static void -i915_texture_destroy(struct pipe_texture *pt) -{ - struct i915_texture *tex = (struct i915_texture *)pt; - struct intel_winsys *iws = i915_screen(pt->screen)->iws; - uint i; - - /* - DBG("%s deleting %p\n", __FUNCTION__, (void *) tex); - */ - - iws->buffer_destroy(iws, tex->buffer); - - for (i = 0; i < PIPE_MAX_TEXTURE_LEVELS; i++) - if (tex->image_offset[i]) - FREE(tex->image_offset[i]); - - FREE(tex); -} - - -/* - * Screen surface functions - */ - - -static struct pipe_surface * -i915_get_tex_surface(struct pipe_screen *screen, - struct pipe_texture *pt, - unsigned face, unsigned level, unsigned zslice, - unsigned flags) -{ - struct i915_texture *tex = (struct i915_texture *)pt; - struct pipe_surface *ps; - unsigned offset; /* in bytes */ - - if (pt->target == PIPE_TEXTURE_CUBE) { - offset = tex->image_offset[level][face]; - } - else if (pt->target == PIPE_TEXTURE_3D) { - offset = tex->image_offset[level][zslice]; - } - else { - offset = tex->image_offset[level][0]; - assert(face == 0); - assert(zslice == 0); - } - - ps = CALLOC_STRUCT(pipe_surface); - if (ps) { - pipe_reference_init(&ps->reference, 1); - pipe_texture_reference(&ps->texture, pt); - ps->format = pt->format; - ps->width = u_minify(pt->width0, level); - ps->height = u_minify(pt->height0, level); - ps->offset = offset; - ps->usage = flags; - } - return ps; -} - -static void -i915_tex_surface_destroy(struct pipe_surface *surf) -{ - pipe_texture_reference(&surf->texture, NULL); - FREE(surf); -} - - -/* - * Screen transfer functions - */ - - -static struct pipe_transfer* -i915_get_tex_transfer(struct pipe_screen *screen, - struct pipe_texture *texture, - unsigned face, unsigned level, unsigned zslice, - enum pipe_transfer_usage usage, unsigned x, unsigned y, - unsigned w, unsigned h) -{ - struct i915_texture *tex = (struct i915_texture *)texture; - struct i915_transfer *trans; - unsigned offset; /* in bytes */ - - if (texture->target == PIPE_TEXTURE_CUBE) { - offset = tex->image_offset[level][face]; - } - else if (texture->target == PIPE_TEXTURE_3D) { - offset = tex->image_offset[level][zslice]; - } - else { - offset = tex->image_offset[level][0]; - assert(face == 0); - assert(zslice == 0); - } - - trans = CALLOC_STRUCT(i915_transfer); - if (trans) { - pipe_texture_reference(&trans->base.texture, texture); - trans->base.x = x; - trans->base.y = y; - trans->base.width = w; - trans->base.height = h; - trans->base.stride = tex->stride; - trans->offset = offset; - trans->base.usage = usage; - } - return &trans->base; -} - -static void * -i915_transfer_map(struct pipe_screen *screen, - struct pipe_transfer *transfer) -{ - struct i915_texture *tex = (struct i915_texture *)transfer->texture; - struct intel_winsys *iws = i915_screen(tex->base.screen)->iws; - char *map; - boolean write = FALSE; - enum pipe_format format = tex->base.format; - - if (transfer->usage & PIPE_TRANSFER_WRITE) - write = TRUE; - - map = iws->buffer_map(iws, tex->buffer, write); - if (map == NULL) - return NULL; - - return map + i915_transfer(transfer)->offset + - transfer->y / util_format_get_blockheight(format) * transfer->stride + - transfer->x / util_format_get_blockwidth(format) * util_format_get_blocksize(format); -} - -static void -i915_transfer_unmap(struct pipe_screen *screen, - struct pipe_transfer *transfer) -{ - struct i915_texture *tex = (struct i915_texture *)transfer->texture; - struct intel_winsys *iws = i915_screen(tex->base.screen)->iws; - iws->buffer_unmap(iws, tex->buffer); -} - -static void -i915_tex_transfer_destroy(struct pipe_transfer *trans) -{ - pipe_texture_reference(&trans->texture, NULL); - FREE(trans); -} - - -/* - * Other texture functions - */ - - -void -i915_init_screen_texture_functions(struct i915_screen *is) -{ - is->base.texture_create = i915_texture_create; - is->base.texture_blanket = i915_texture_blanket; - is->base.texture_destroy = i915_texture_destroy; - is->base.get_tex_surface = i915_get_tex_surface; - is->base.tex_surface_destroy = i915_tex_surface_destroy; - is->base.get_tex_transfer = i915_get_tex_transfer; - is->base.transfer_map = i915_transfer_map; - is->base.transfer_unmap = i915_transfer_unmap; - is->base.tex_transfer_destroy = i915_tex_transfer_destroy; -} - -struct pipe_texture * -i915_texture_blanket_intel(struct pipe_screen *screen, - struct pipe_texture *base, - unsigned stride, - struct intel_buffer *buffer) -{ - struct i915_texture *tex; - assert(screen); - - /* Only supports one type */ - if (base->target != PIPE_TEXTURE_2D || - base->last_level != 0 || - base->depth0 != 1) { - return NULL; - } - - tex = CALLOC_STRUCT(i915_texture); - if (!tex) - return NULL; - - tex->base = *base; - pipe_reference_init(&tex->base.reference, 1); - tex->base.screen = screen; - - tex->stride = stride; - - i915_miptree_set_level_info(tex, 0, 1, base->width0, base->height0, 1); - i915_miptree_set_image_offset(tex, 0, 0, 0, 0); - - tex->buffer = buffer; - - return &tex->base; -} - -boolean -i915_get_texture_buffer_intel(struct pipe_texture *texture, - struct intel_buffer **buffer, - unsigned *stride) -{ - struct i915_texture *tex = (struct i915_texture *)texture; - - if (!texture) - return FALSE; - - *stride = tex->stride; - *buffer = tex->buffer; - - return TRUE; -} |