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authorJosé Fonseca <jfonseca@vmware.com>2009-02-20 16:50:02 +0000
committerJosé Fonseca <jfonseca@vmware.com>2009-02-20 16:50:02 +0000
commit60e35ebf1476c31eb5d7c207ab8e9db77fcad896 (patch)
tree74784001b694ae1268670932523369707c4f69d2 /src/gallium
parent77388559886dd84c69aaffc9a385ad87c410afa9 (diff)
python: More efficient blits from surfaces.
C code instead of interpreted python code.
Diffstat (limited to 'src/gallium')
-rw-r--r--src/gallium/state_trackers/python/gallium.i1
-rw-r--r--src/gallium/state_trackers/python/p_texture.i44
-rwxr-xr-xsrc/gallium/state_trackers/python/retrace/interpreter.py14
-rw-r--r--src/gallium/state_trackers/python/samples/tri.py14
4 files changed, 49 insertions, 24 deletions
diff --git a/src/gallium/state_trackers/python/gallium.i b/src/gallium/state_trackers/python/gallium.i
index f4c4b36ea7..bd30d9068f 100644
--- a/src/gallium/state_trackers/python/gallium.i
+++ b/src/gallium/state_trackers/python/gallium.i
@@ -47,6 +47,7 @@
#include "cso_cache/cso_context.h"
#include "util/u_draw_quad.h"
#include "util/u_tile.h"
+#include "util/u_math.h"
#include "tgsi/tgsi_text.h"
#include "tgsi/tgsi_dump.h"
diff --git a/src/gallium/state_trackers/python/p_texture.i b/src/gallium/state_trackers/python/p_texture.i
index 08ba0ebe4d..9396522961 100644
--- a/src/gallium/state_trackers/python/p_texture.i
+++ b/src/gallium/state_trackers/python/p_texture.i
@@ -121,6 +121,50 @@
pipe_put_tile_rgba($self, x, y, w, h, rgba);
}
+ %cstring_output_allocate_size(char **STRING, int *LENGTH, free(*$1));
+ void
+ get_tile_rgba8(unsigned x, unsigned y, unsigned w, unsigned h, char **STRING, int *LENGTH)
+ {
+ unsigned surface_usage;
+ float *rgba;
+ unsigned char *rgba8;
+ unsigned i, j, k;
+
+ *LENGTH = 0;
+ *STRING = NULL;
+
+ if (!$self)
+ return;
+
+ *LENGTH = h*w*4;
+ *STRING = (char *) malloc(*LENGTH);
+ if(!*STRING)
+ return;
+
+ rgba = malloc(w*4*sizeof(float));
+ if(!rgba)
+ return;
+
+ rgba8 = (unsigned char *) *STRING;
+
+ /* XXX: force mappable surface */
+ surface_usage = $self->usage;
+ $self->usage |= PIPE_BUFFER_USAGE_CPU_READ;
+
+ for(j = 0; j < h; ++j) {
+ pipe_get_tile_rgba($self,
+ x, y + j, w, 1,
+ rgba);
+ for(i = 0; i < w; ++i)
+ for(k = 0; k <4; ++k)
+ rgba8[j*w*4 + i*4 + k] = float_to_ubyte(rgba[i*4 + k]);
+ }
+
+ $self->usage = surface_usage;
+
+ free(rgba);
+ }
+
void
get_tile_z(unsigned x, unsigned y, unsigned w, unsigned h, unsigned *z) {
pipe_get_tile_z($self, x, y, w, h, z);
diff --git a/src/gallium/state_trackers/python/retrace/interpreter.py b/src/gallium/state_trackers/python/retrace/interpreter.py
index 2a75ee82d5..e6999a2211 100755
--- a/src/gallium/state_trackers/python/retrace/interpreter.py
+++ b/src/gallium/state_trackers/python/retrace/interpreter.py
@@ -44,20 +44,10 @@ except ImportError:
def make_image(surface):
- pixels = gallium.FloatArray(surface.height*surface.width*4)
- surface.get_tile_rgba(0, 0, surface.width, surface.height, pixels)
+ data = surface.get_tile_rgba8(0, 0, surface.width, surface.height)
import Image
- outimage = Image.new(
- mode='RGB',
- size=(surface.width, surface.height),
- color=(0,0,0))
- outpixels = outimage.load()
- for y in range(0, surface.height):
- for x in range(0, surface.width):
- offset = (y*surface.width + x)*4
- r, g, b, a = [int(pixels[offset + ch]*255) for ch in range(4)]
- outpixels[x, y] = r, g, b
+ outimage = Image.fromstring('RGBA', (surface.width, surface.height), data, "raw", 'RGBA', 0, 1)
return outimage
def save_image(filename, surface):
diff --git a/src/gallium/state_trackers/python/samples/tri.py b/src/gallium/state_trackers/python/samples/tri.py
index 193479f7d6..d3ccb6c2f4 100644
--- a/src/gallium/state_trackers/python/samples/tri.py
+++ b/src/gallium/state_trackers/python/samples/tri.py
@@ -31,20 +31,10 @@ from gallium import *
def make_image(surface):
- pixels = FloatArray(surface.height*surface.width*4)
- surface.get_tile_rgba(0, 0, surface.width, surface.height, pixels)
+ data = surface.get_tile_rgba8(0, 0, surface.width, surface.height)
import Image
- outimage = Image.new(
- mode='RGB',
- size=(surface.width, surface.height),
- color=(0,0,0))
- outpixels = outimage.load()
- for y in range(0, surface.height):
- for x in range(0, surface.width):
- offset = (y*surface.width + x)*4
- r, g, b, a = [int(pixels[offset + ch]*255) for ch in range(4)]
- outpixels[x, y] = r, g, b
+ outimage = Image.fromstring('RGBA', (surface.width, surface.height), data, "raw", 'RGBA', 0, 1)
return outimage
def save_image(filename, surface):