diff options
Diffstat (limited to 'src/gallium/auxiliary/util/u_surface.c')
-rw-r--r-- | src/gallium/auxiliary/util/u_surface.c | 188 |
1 files changed, 135 insertions, 53 deletions
diff --git a/src/gallium/auxiliary/util/u_surface.c b/src/gallium/auxiliary/util/u_surface.c index 42440d0d673..b47c92ca28f 100644 --- a/src/gallium/auxiliary/util/u_surface.c +++ b/src/gallium/auxiliary/util/u_surface.c @@ -32,12 +32,14 @@ */ +#include "pipe/p_defines.h" #include "pipe/p_screen.h" #include "pipe/p_state.h" -#include "pipe/p_defines.h" -#include "util/u_inlines.h" +#include "util/u_format.h" +#include "util/u_inlines.h" #include "util/u_memory.h" +#include "util/u_rect.h" #include "util/u_surface.h" @@ -118,70 +120,150 @@ util_destroy_rgba_surface(struct pipe_resource *texture, /** - * Compare pipe_framebuffer_state objects. - * \return TRUE if same, FALSE if different + * Fallback function for pipe->surface_copy(). + * Note: (X,Y)=(0,0) is always the upper-left corner. + * if do_flip, flip the image vertically on its way from src rect to dst rect. */ -boolean -util_framebuffer_state_equal(const struct pipe_framebuffer_state *dst, - const struct pipe_framebuffer_state *src) +void +util_surface_copy(struct pipe_context *pipe, + boolean do_flip, + struct pipe_surface *dst, + unsigned dst_x, unsigned dst_y, + struct pipe_surface *src, + unsigned src_x, unsigned src_y, + unsigned w, unsigned h) { - unsigned i; - - if (dst->width != src->width || - dst->height != src->height) - return FALSE; - - for (i = 0; i < Elements(src->cbufs); i++) { - if (dst->cbufs[i] != src->cbufs[i]) { - return FALSE; - } - } - - if (dst->nr_cbufs != src->nr_cbufs) { - return FALSE; + struct pipe_transfer *src_trans, *dst_trans; + void *dst_map; + const void *src_map; + enum pipe_format src_format, dst_format; + + assert(src->texture && dst->texture); + if (!src->texture || !dst->texture) + return; + + src_format = src->texture->format; + dst_format = dst->texture->format; + + src_trans = pipe_get_transfer(pipe, + src->texture, + src->face, + src->level, + src->zslice, + PIPE_TRANSFER_READ, + src_x, src_y, w, h); + + dst_trans = pipe_get_transfer(pipe, + dst->texture, + dst->face, + dst->level, + dst->zslice, + PIPE_TRANSFER_WRITE, + dst_x, dst_y, w, h); + + assert(util_format_get_blocksize(dst_format) == util_format_get_blocksize(src_format)); + assert(util_format_get_blockwidth(dst_format) == util_format_get_blockwidth(src_format)); + assert(util_format_get_blockheight(dst_format) == util_format_get_blockheight(src_format)); + + src_map = pipe->transfer_map(pipe, src_trans); + dst_map = pipe->transfer_map(pipe, dst_trans); + + assert(src_map); + assert(dst_map); + + if (src_map && dst_map) { + /* If do_flip, invert src_y position and pass negative src stride */ + util_copy_rect(dst_map, + dst_format, + dst_trans->stride, + 0, 0, + w, h, + src_map, + do_flip ? -(int) src_trans->stride : src_trans->stride, + 0, + do_flip ? h - 1 : 0); } - if (dst->zsbuf != src->zsbuf) { - return FALSE; - } + pipe->transfer_unmap(pipe, src_trans); + pipe->transfer_unmap(pipe, dst_trans); - return TRUE; + pipe->transfer_destroy(pipe, src_trans); + pipe->transfer_destroy(pipe, dst_trans); } -/** - * Copy framebuffer state from src to dst, updating refcounts. - */ -void -util_copy_framebuffer_state(struct pipe_framebuffer_state *dst, - const struct pipe_framebuffer_state *src) -{ - unsigned i; - - dst->width = src->width; - dst->height = src->height; - for (i = 0; i < Elements(src->cbufs); i++) { - pipe_surface_reference(&dst->cbufs[i], src->cbufs[i]); - } - - dst->nr_cbufs = src->nr_cbufs; - - pipe_surface_reference(&dst->zsbuf, src->zsbuf); -} +#define UBYTE_TO_USHORT(B) ((B) | ((B) << 8)) +/** + * Fallback for pipe->surface_fill() function. + */ void -util_unreference_framebuffer_state(struct pipe_framebuffer_state *fb) +util_surface_fill(struct pipe_context *pipe, + struct pipe_surface *dst, + unsigned dstx, unsigned dsty, + unsigned width, unsigned height, unsigned value) { - unsigned i; - - for (i = 0; i < fb->nr_cbufs; i++) { - pipe_surface_reference(&fb->cbufs[i], NULL); + struct pipe_transfer *dst_trans; + void *dst_map; + + assert(dst->texture); + if (!dst->texture) + return; + dst_trans = pipe_get_transfer(pipe, + dst->texture, + dst->face, + dst->level, + dst->zslice, + PIPE_TRANSFER_WRITE, + dstx, dsty, width, height); + + dst_map = pipe->transfer_map(pipe, dst_trans); + + assert(dst_map); + + if (dst_map) { + assert(dst_trans->stride > 0); + + switch (util_format_get_blocksize(dst->texture->format)) { + case 1: + case 2: + case 4: + util_fill_rect(dst_map, dst->texture->format, + dst_trans->stride, + 0, 0, width, height, value); + break; + case 8: + { + /* expand the 4-byte clear value to an 8-byte value */ + ushort *row = (ushort *) dst_map; + ushort val0 = UBYTE_TO_USHORT((value >> 0) & 0xff); + ushort val1 = UBYTE_TO_USHORT((value >> 8) & 0xff); + ushort val2 = UBYTE_TO_USHORT((value >> 16) & 0xff); + ushort val3 = UBYTE_TO_USHORT((value >> 24) & 0xff); + unsigned i, j; + val0 = (val0 << 8) | val0; + val1 = (val1 << 8) | val1; + val2 = (val2 << 8) | val2; + val3 = (val3 << 8) | val3; + for (i = 0; i < height; i++) { + for (j = 0; j < width; j++) { + row[j*4+0] = val0; + row[j*4+1] = val1; + row[j*4+2] = val2; + row[j*4+3] = val3; + } + row += dst_trans->stride/2; + } + } + break; + default: + assert(0); + break; + } } - pipe_surface_reference(&fb->zsbuf, NULL); - - fb->width = fb->height = 0; - fb->nr_cbufs = 0; + pipe->transfer_unmap(pipe, dst_trans); + pipe->transfer_destroy(pipe, dst_trans); } |