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diff --git a/src/gallium/state_trackers/python/p_texture.i b/src/gallium/state_trackers/python/p_texture.i
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+ /**************************************************************************
+ *
+ * Copyright 2008 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.
+ *
+ **************************************************************************/
+
+/**
+ * @file
+ * SWIG interface definion for Gallium types.
+ *
+ * @author Jose Fonseca <jrfonseca@tungstengraphics.com>
+ */
+
+
+%nodefaultctor pipe_texture;
+%nodefaultctor st_surface;
+%nodefaultctor pipe_buffer;
+
+%nodefaultdtor pipe_texture;
+%nodefaultdtor st_surface;
+%nodefaultdtor pipe_buffer;
+
+%ignore pipe_texture::screen;
+
+%immutable st_surface::texture;
+%immutable st_surface::face;
+%immutable st_surface::level;
+%immutable st_surface::zslice;
+
+%newobject pipe_texture::get_surface;
+
+
+%extend pipe_texture {
+
+ ~pipe_texture() {
+ struct pipe_texture *ptr = $self;
+ pipe_texture_reference(&ptr, NULL);
+ }
+
+ unsigned get_width(unsigned level=0) {
+ return $self->width[level];
+ }
+
+ unsigned get_height(unsigned level=0) {
+ return $self->height[level];
+ }
+
+ unsigned get_depth(unsigned level=0) {
+ return $self->depth[level];
+ }
+
+ unsigned get_nblocksx(unsigned level=0) {
+ return $self->nblocksx[level];
+ }
+
+ unsigned get_nblocksy(unsigned level=0) {
+ return $self->nblocksy[level];
+ }
+
+ /** Get a surface which is a "view" into a texture */
+ struct st_surface *
+ get_surface(unsigned face=0, unsigned level=0, unsigned zslice=0)
+ {
+ struct st_surface *surface;
+
+ if(face >= ($self->target == PIPE_TEXTURE_CUBE ? 6U : 1U))
+ SWIG_exception(SWIG_ValueError, "face out of bounds");
+ if(level > $self->last_level)
+ SWIG_exception(SWIG_ValueError, "level out of bounds");
+ if(zslice >= $self->depth[level])
+ SWIG_exception(SWIG_ValueError, "zslice out of bounds");
+
+ surface = CALLOC_STRUCT(st_surface);
+ if(!surface)
+ return NULL;
+
+ pipe_texture_reference(&surface->texture, $self);
+ surface->face = face;
+ surface->level = level;
+ surface->zslice = zslice;
+
+ return surface;
+
+ fail:
+ return NULL;
+ }
+
+};
+
+struct st_surface
+{
+ %immutable;
+
+ struct pipe_texture *texture;
+ unsigned face;
+ unsigned level;
+ unsigned zslice;
+
+};
+
+%extend st_surface {
+
+ %immutable;
+
+ unsigned format;
+ unsigned width;
+ unsigned height;
+ unsigned nblocksx;
+ unsigned nblocksy;
+
+ ~st_surface() {
+ pipe_texture_reference(&$self->texture, NULL);
+ FREE($self);
+ }
+
+ %cstring_output_allocate_size(char **STRING, int *LENGTH, free(*$1));
+ void get_tile_raw(unsigned x, unsigned y, unsigned w, unsigned h, char **STRING, int *LENGTH)
+ {
+ struct pipe_texture *texture = $self->texture;
+ struct pipe_screen *screen = texture->screen;
+ struct pipe_transfer *transfer;
+ unsigned stride;
+
+ stride = pf_get_nblocksx(&texture->block, w) * texture->block.size;
+ *LENGTH = pf_get_nblocksy(&texture->block, h) * stride;
+ *STRING = (char *) malloc(*LENGTH);
+ if(!*STRING)
+ return;
+
+ transfer = screen->get_tex_transfer(screen,
+ $self->texture,
+ $self->face,
+ $self->level,
+ $self->zslice,
+ PIPE_TRANSFER_READ,
+ x, y, w, h);
+ if(transfer) {
+ pipe_get_tile_raw(transfer, 0, 0, w, h, *STRING, stride);
+ screen->tex_transfer_destroy(transfer);
+ }
+ }
+
+ %cstring_input_binary(const char *STRING, unsigned LENGTH);
+ void put_tile_raw(unsigned x, unsigned y, unsigned w, unsigned h, const char *STRING, unsigned LENGTH, unsigned stride = 0)
+ {
+ struct pipe_texture *texture = $self->texture;
+ struct pipe_screen *screen = texture->screen;
+ struct pipe_transfer *transfer;
+
+ if(stride == 0)
+ stride = pf_get_nblocksx(&texture->block, w) * texture->block.size;
+
+ if(LENGTH < pf_get_nblocksy(&texture->block, h) * stride)
+ SWIG_exception(SWIG_ValueError, "offset must be smaller than buffer size");
+
+ transfer = screen->get_tex_transfer(screen,
+ $self->texture,
+ $self->face,
+ $self->level,
+ $self->zslice,
+ PIPE_TRANSFER_WRITE,
+ x, y, w, h);
+ if(!transfer)
+ SWIG_exception(SWIG_MemoryError, "couldn't initiate transfer");
+
+ pipe_put_tile_raw(transfer, 0, 0, w, h, STRING, stride);
+ screen->tex_transfer_destroy(transfer);
+
+ fail:
+ return;
+ }
+
+ void
+ get_tile_rgba(unsigned x, unsigned y, unsigned w, unsigned h, float *rgba)
+ {
+ struct pipe_screen *screen = $self->texture->screen;
+ struct pipe_transfer *transfer;
+ transfer = screen->get_tex_transfer(screen,
+ $self->texture,
+ $self->face,
+ $self->level,
+ $self->zslice,
+ PIPE_TRANSFER_READ,
+ x, y, w, h);
+ if(transfer) {
+ pipe_get_tile_rgba(transfer, 0, 0, w, h, rgba);
+ screen->tex_transfer_destroy(transfer);
+ }
+ }
+
+ void
+ put_tile_rgba(unsigned x, unsigned y, unsigned w, unsigned h, const float *rgba)
+ {
+ struct pipe_screen *screen = $self->texture->screen;
+ struct pipe_transfer *transfer;
+ transfer = screen->get_tex_transfer(screen,
+ $self->texture,
+ $self->face,
+ $self->level,
+ $self->zslice,
+ PIPE_TRANSFER_WRITE,
+ x, y, w, h);
+ if(transfer) {
+ pipe_put_tile_rgba(transfer, 0, 0, w, h, rgba);
+ screen->tex_transfer_destroy(transfer);
+ }
+ }
+
+ %cstring_output_allocate_size(char **STRING, int *LENGTH, free(*$1));
+ void
+ get_tile_rgba8(unsigned x, unsigned y, unsigned w, unsigned h, char **STRING, int *LENGTH)
+ {
+ struct pipe_screen *screen = $self->texture->screen;
+ struct pipe_transfer *transfer;
+ float *rgba;
+ unsigned char *rgba8;
+ unsigned i, j, k;
+
+ *LENGTH = 0;
+ *STRING = NULL;
+
+ if (!$self)
+ return;
+
+ *LENGTH = h*w*4;
+ *STRING = (char *) malloc(*LENGTH);
+ if(!*STRING)
+ return;
+
+ rgba = malloc(h*w*4*sizeof(float));
+ if(!rgba)
+ return;
+
+ rgba8 = (unsigned char *) *STRING;
+
+ transfer = screen->get_tex_transfer(screen,
+ $self->texture,
+ $self->face,
+ $self->level,
+ $self->zslice,
+ PIPE_TRANSFER_READ,
+ x, y,
+ w, h);
+ if(transfer) {
+ pipe_get_tile_rgba(transfer, 0, 0, w, h, rgba);
+ for(j = 0; j < h; ++j) {
+ for(i = 0; i < w; ++i)
+ for(k = 0; k <4; ++k)
+ rgba8[j*w*4 + i*4 + k] = float_to_ubyte(rgba[j*w*4 + i*4 + k]);
+ }
+ screen->tex_transfer_destroy(transfer);
+ }
+
+ free(rgba);
+ }
+
+ void
+ get_tile_z(unsigned x, unsigned y, unsigned w, unsigned h, unsigned *z)
+ {
+ struct pipe_screen *screen = $self->texture->screen;
+ struct pipe_transfer *transfer;
+ transfer = screen->get_tex_transfer(screen,
+ $self->texture,
+ $self->face,
+ $self->level,
+ $self->zslice,
+ PIPE_TRANSFER_READ,
+ x, y, w, h);
+ if(transfer) {
+ pipe_get_tile_z(transfer, 0, 0, w, h, z);
+ screen->tex_transfer_destroy(transfer);
+ }
+ }
+
+ void
+ put_tile_z(unsigned x, unsigned y, unsigned w, unsigned h, const unsigned *z)
+ {
+ struct pipe_screen *screen = $self->texture->screen;
+ struct pipe_transfer *transfer;
+ transfer = screen->get_tex_transfer(screen,
+ $self->texture,
+ $self->face,
+ $self->level,
+ $self->zslice,
+ PIPE_TRANSFER_WRITE,
+ x, y, w, h);
+ if(transfer) {
+ pipe_put_tile_z(transfer, 0, 0, w, h, z);
+ screen->tex_transfer_destroy(transfer);
+ }
+ }
+
+ void
+ sample_rgba(float *rgba) {
+ st_sample_surface($self, rgba);
+ }
+
+ unsigned
+ compare_tile_rgba(unsigned x, unsigned y, unsigned w, unsigned h, const float *rgba, float tol = 0.0)
+ {
+ struct pipe_screen *screen = $self->texture->screen;
+ struct pipe_transfer *transfer;
+ float *rgba2;
+ const float *p1;
+ const float *p2;
+ unsigned i, j, n;
+
+ rgba2 = MALLOC(h*w*4*sizeof(float));
+ if(!rgba2)
+ return ~0;
+
+ transfer = screen->get_tex_transfer(screen,
+ $self->texture,
+ $self->face,
+ $self->level,
+ $self->zslice,
+ PIPE_TRANSFER_READ,
+ x, y, w, h);
+ if(!transfer) {
+ FREE(rgba2);
+ return ~0;
+ }
+
+ pipe_get_tile_rgba(transfer, 0, 0, w, h, rgba2);
+ screen->tex_transfer_destroy(transfer);
+
+ p1 = rgba;
+ p2 = rgba2;
+ n = 0;
+ for(i = h*w; i; --i) {
+ unsigned differs = 0;
+ for(j = 4; j; --j) {
+ float delta = *p2++ - *p1++;
+ if (delta < -tol || delta > tol)
+ differs = 1;
+ }
+ n += differs;
+ }
+
+ FREE(rgba2);
+
+ return n;
+ }
+
+};
+
+%{
+ static enum pipe_format
+ st_surface_format_get(struct st_surface *surface)
+ {
+ return surface->texture->format;
+ }
+
+ static unsigned
+ st_surface_width_get(struct st_surface *surface)
+ {
+ return surface->texture->width[surface->level];
+ }
+
+ static unsigned
+ st_surface_height_get(struct st_surface *surface)
+ {
+ return surface->texture->height[surface->level];
+ }
+
+ static unsigned
+ st_surface_nblocksx_get(struct st_surface *surface)
+ {
+ return surface->texture->nblocksx[surface->level];
+ }
+
+ static unsigned
+ st_surface_nblocksy_get(struct st_surface *surface)
+ {
+ return surface->texture->nblocksy[surface->level];
+ }
+%}
+
+/* Avoid naming conflict with p_inlines.h's pipe_buffer_read/write */
+%rename(read) read_;
+%rename(write) write_;
+
+%extend pipe_buffer {
+
+ ~pipe_buffer() {
+ struct pipe_buffer *ptr = $self;
+ pipe_buffer_reference(&ptr, NULL);
+ }
+
+ unsigned __len__(void)
+ {
+ assert(p_atomic_read(&$self->reference.count) > 0);
+ return $self->size;
+ }
+
+ %cstring_output_allocate_size(char **STRING, int *LENGTH, free(*$1));
+ void read_(char **STRING, int *LENGTH)
+ {
+ struct pipe_screen *screen = $self->screen;
+
+ assert(p_atomic_read(&$self->reference.count) > 0);
+
+ *LENGTH = $self->size;
+ *STRING = (char *) malloc($self->size);
+ if(!*STRING)
+ return;
+
+ pipe_buffer_read(screen, $self, 0, $self->size, *STRING);
+ }
+
+ %cstring_input_binary(const char *STRING, unsigned LENGTH);
+ void write_(const char *STRING, unsigned LENGTH, unsigned offset = 0)
+ {
+ struct pipe_screen *screen = $self->screen;
+
+ assert(p_atomic_read(&$self->reference.count) > 0);
+
+ if(offset > $self->size)
+ SWIG_exception(SWIG_ValueError, "offset must be smaller than buffer size");
+
+ if(offset + LENGTH > $self->size)
+ SWIG_exception(SWIG_ValueError, "data length must fit inside the buffer");
+
+ pipe_buffer_write(screen, $self, offset, LENGTH, STRING);
+
+fail:
+ return;
+ }
+};
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