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diff --git a/src/gallium/state_trackers/python/samples/tri.py b/src/gallium/state_trackers/python/samples/tri.py
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--- a/src/gallium/state_trackers/python/samples/tri.py
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-#!/usr/bin/env python
-##########################################################################
-#
-# 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.
-#
-##########################################################################
-
-
-from gallium import *
-
-
-def make_image(surface):
- data = surface.get_tile_rgba8(0, 0, surface.width, surface.height)
-
- import Image
- outimage = Image.fromstring('RGBA', (surface.width, surface.height), data, "raw", 'RGBA', 0, 1)
- return outimage
-
-def save_image(filename, surface):
- outimage = make_image(surface)
- outimage.save(filename, "PNG")
-
-def show_image(surface):
- outimage = make_image(surface)
-
- import Tkinter as tk
- from PIL import Image, ImageTk
- root = tk.Tk()
-
- root.title('background image')
-
- image1 = ImageTk.PhotoImage(outimage)
- w = image1.width()
- h = image1.height()
- x = 100
- y = 100
- root.geometry("%dx%d+%d+%d" % (w, h, x, y))
- panel1 = tk.Label(root, image=image1)
- panel1.pack(side='top', fill='both', expand='yes')
- panel1.image = image1
- root.mainloop()
-
-
-def test(dev):
- ctx = dev.context_create()
-
- width = 255
- height = 255
- minz = 0.0
- maxz = 1.0
-
- # disabled blending/masking
- blend = Blend()
- blend.rt[0].rgb_src_factor = PIPE_BLENDFACTOR_ONE
- blend.rt[0].alpha_src_factor = PIPE_BLENDFACTOR_ONE
- blend.rt[0].rgb_dst_factor = PIPE_BLENDFACTOR_ZERO
- blend.rt[0].alpha_dst_factor = PIPE_BLENDFACTOR_ZERO
- blend.rt[0].colormask = PIPE_MASK_RGBA
- ctx.set_blend(blend)
-
- # depth/stencil/alpha
- depth_stencil_alpha = DepthStencilAlpha()
- depth_stencil_alpha.depth.enabled = 1
- depth_stencil_alpha.depth.writemask = 1
- depth_stencil_alpha.depth.func = PIPE_FUNC_LESS
- ctx.set_depth_stencil_alpha(depth_stencil_alpha)
-
- # rasterizer
- rasterizer = Rasterizer()
- rasterizer.front_winding = PIPE_WINDING_CW
- rasterizer.cull_mode = PIPE_WINDING_NONE
- rasterizer.scissor = 1
- ctx.set_rasterizer(rasterizer)
-
- # viewport
- viewport = Viewport()
- scale = FloatArray(4)
- scale[0] = width / 2.0
- scale[1] = -height / 2.0
- scale[2] = (maxz - minz) / 2.0
- scale[3] = 1.0
- viewport.scale = scale
- translate = FloatArray(4)
- translate[0] = width / 2.0
- translate[1] = height / 2.0
- translate[2] = (maxz - minz) / 2.0
- translate[3] = 0.0
- viewport.translate = translate
- ctx.set_viewport(viewport)
-
- # samplers
- sampler = Sampler()
- sampler.wrap_s = PIPE_TEX_WRAP_CLAMP_TO_EDGE
- sampler.wrap_t = PIPE_TEX_WRAP_CLAMP_TO_EDGE
- sampler.wrap_r = PIPE_TEX_WRAP_CLAMP_TO_EDGE
- sampler.min_mip_filter = PIPE_TEX_MIPFILTER_NONE
- sampler.min_img_filter = PIPE_TEX_MIPFILTER_NEAREST
- sampler.mag_img_filter = PIPE_TEX_MIPFILTER_NEAREST
- sampler.normalized_coords = 1
- ctx.set_fragment_sampler(0, sampler)
-
- # scissor
- scissor = Scissor()
- scissor.minx = 0
- scissor.miny = 0
- scissor.maxx = width
- scissor.maxy = height
- ctx.set_scissor(scissor)
-
- clip = Clip()
- clip.nr = 0
- ctx.set_clip(clip)
-
- # framebuffer
- cbuf = dev.texture_create(
- PIPE_FORMAT_X8R8G8B8_UNORM,
- width, height,
- tex_usage=PIPE_TEXTURE_USAGE_RENDER_TARGET,
- ).get_surface()
- zbuf = dev.texture_create(
- PIPE_FORMAT_Z32_UNORM,
- width, height,
- tex_usage=PIPE_TEXTURE_USAGE_DEPTH_STENCIL,
- ).get_surface()
- fb = Framebuffer()
- fb.width = width
- fb.height = height
- fb.nr_cbufs = 1
- fb.set_cbuf(0, cbuf)
- fb.set_zsbuf(zbuf)
- ctx.set_framebuffer(fb)
- rgba = FloatArray(4);
- rgba[0] = 0.0
- rgba[1] = 0.0
- rgba[2] = 0.0
- rgba[3] = 0.0
- ctx.clear(PIPE_CLEAR_COLOR | PIPE_CLEAR_DEPTHSTENCIL, rgba, 1.0, 0xff)
-
- # vertex shader
- vs = Shader('''
- VERT
- DCL IN[0], POSITION, CONSTANT
- DCL IN[1], COLOR, CONSTANT
- DCL OUT[0], POSITION, CONSTANT
- DCL OUT[1], COLOR, CONSTANT
- 0:MOV OUT[0], IN[0]
- 1:MOV OUT[1], IN[1]
- 2:END
- ''')
- ctx.set_vertex_shader(vs)
-
- # fragment shader
- fs = Shader('''
- FRAG
- DCL IN[0], COLOR, LINEAR
- DCL OUT[0], COLOR, CONSTANT
- 0:MOV OUT[0], IN[0]
- 1:END
- ''')
- ctx.set_fragment_shader(fs)
-
- nverts = 3
- nattrs = 2
- verts = FloatArray(nverts * nattrs * 4)
-
- verts[ 0] = 0.0 # x1
- verts[ 1] = 0.8 # y1
- verts[ 2] = 0.2 # z1
- verts[ 3] = 1.0 # w1
- verts[ 4] = 1.0 # r1
- verts[ 5] = 0.0 # g1
- verts[ 6] = 0.0 # b1
- verts[ 7] = 1.0 # a1
- verts[ 8] = -0.8 # x2
- verts[ 9] = -0.8 # y2
- verts[10] = 0.5 # z2
- verts[11] = 1.0 # w2
- verts[12] = 0.0 # r2
- verts[13] = 1.0 # g2
- verts[14] = 0.0 # b2
- verts[15] = 1.0 # a2
- verts[16] = 0.8 # x3
- verts[17] = -0.8 # y3
- verts[18] = 0.8 # z3
- verts[19] = 1.0 # w3
- verts[20] = 0.0 # r3
- verts[21] = 0.0 # g3
- verts[22] = 1.0 # b3
- verts[23] = 1.0 # a3
-
- ctx.draw_vertices(PIPE_PRIM_TRIANGLES,
- nverts,
- nattrs,
- verts)
-
- ctx.flush()
-
- show_image(cbuf)
- #show_image(zbuf)
- #save_image('cbuf.png', cbuf)
- #save_image('zbuf.png', zbuf)
-
-
-
-def main():
- dev = Device()
- test(dev)
-
-
-if __name__ == '__main__':
- main()
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