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#!/usr/bin/env python
##########################################################################
#
# Copyright 2009 VMware, Inc.
# 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 VMWARE 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 test(dev, name):
ctx = dev.context_create()
width = 320
height = 320
minz = 0.0
maxz = 1.0
# disabled blending/masking
blend = Blend()
blend.rgb_src_factor = PIPE_BLENDFACTOR_ONE
blend.alpha_src_factor = PIPE_BLENDFACTOR_ONE
blend.rgb_dst_factor = PIPE_BLENDFACTOR_ZERO
blend.alpha_dst_factor = PIPE_BLENDFACTOR_ZERO
blend.colormask = PIPE_MASK_RGBA
ctx.set_blend(blend)
# depth/stencil/alpha
depth_stencil_alpha = DepthStencilAlpha()
depth_stencil_alpha.depth.enabled = 0
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_DISPLAY_TARGET,
).get_surface()
fb = Framebuffer()
fb.width = width
fb.height = height
fb.nr_cbufs = 1
fb.set_cbuf(0, cbuf)
ctx.set_framebuffer(fb)
rgba = FloatArray(4);
rgba[0] = 0.5
rgba[1] = 0.5
rgba[2] = 0.5
rgba[3] = 0.5
ctx.clear(PIPE_CLEAR_COLOR, rgba, 0.0, 0)
# vertex shader
vs = Shader('''
VERT
DCL IN[0], POSITION
DCL IN[1], COLOR
DCL OUT[0], POSITION
DCL OUT[1], COLOR
MOV OUT[0], IN[0]
MOV OUT[1], IN[1]
END
''')
ctx.set_vertex_shader(vs)
# fragment shader
fs = Shader(file('frag-' + name + '.sh', 'rt').read())
ctx.set_fragment_shader(fs)
xy = [
-0.8, -0.8,
0.8, -0.8,
0.0, 0.8,
]
color = [
1.0, 0.0, 0.0,
0.0, 1.0, 0.0,
0.0, 0.0, 1.0,
]
nverts = 3
nattrs = 2
verts = FloatArray(nverts * nattrs * 4)
for i in range(0, nverts):
verts[i * nattrs * 4 + 0] = xy[i * 2 + 0] # x
verts[i * nattrs * 4 + 1] = xy[i * 2 + 1] # y
verts[i * nattrs * 4 + 2] = 0.5 # z
verts[i * nattrs * 4 + 3] = 1.0 # w
verts[i * nattrs * 4 + 4] = color[i * 3 + 0] # r
verts[i * nattrs * 4 + 5] = color[i * 3 + 1] # g
verts[i * nattrs * 4 + 6] = color[i * 3 + 2] # b
verts[i * nattrs * 4 + 7] = 1.0 # a
ctx.draw_vertices(PIPE_PRIM_TRIANGLES,
nverts,
nattrs,
verts)
ctx.flush()
save_image('frag-' + name + '.png', cbuf)
def main():
tests = [
'abs',
'add',
'dp3',
'dp4',
'dst',
'ex2',
'flr',
'frc',
'lg2',
'lit',
'lrp',
'mad',
'max',
'min',
'mov',
'mul',
'rcp',
'rsq',
'sge',
'slt',
'srcmod-abs',
'srcmod-absneg',
'srcmod-neg',
'srcmod-swz',
'sub',
'xpd',
]
dev = Device()
for t in tests:
test(dev, t)
if __name__ == '__main__':
main()
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