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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.
#
##########################################################################
import sys
from gallium import *
from base import *
from data import generate_data
def compare_rgba(width, height, rgba1, rgba2, tol=0.01):
errors = 0
for y in range(0, height):
for x in range(0, width):
for ch in range(4):
offset = (y*width + x)*4 + ch
v1 = rgba1[offset]
v2 = rgba2[offset]
if abs(v1 - v2) > tol:
if errors == 0:
sys.stderr.write("x=%u, y=%u, ch=%u differ: %f vs %f\n" % (x, y, ch, v1, v2))
if errors == 1:
sys.stderr.write("...\n")
errors += 1
if errors:
sys.stderr.write("%u out of %u pixels differ\n" % (errors/4, height*width))
return errors == 0
class TextureTest(Test):
def __init__(self, **kargs):
Test.__init__(self)
self.__dict__.update(kargs)
def run(self):
dev = self.dev
format = PIPE_FORMAT_A8R8G8B8_UNORM
#format = PIPE_FORMAT_DXT1_RGB
if not dev.is_format_supported(format, PIPE_TEXTURE):
pass
if not dev.is_format_supported(format, PIPE_SURFACE):
pass
ctx = dev.context_create()
width = 64
height = 64
# 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)
# no-op depth/stencil/alpha
depth_stencil_alpha = DepthStencilAlpha()
ctx.set_depth_stencil_alpha(depth_stencil_alpha)
# rasterizer
rasterizer = Rasterizer()
rasterizer.front_winding = PIPE_WINDING_CW
rasterizer.cull_mode = PIPE_WINDING_NONE
rasterizer.bypass_clipping = 1
#rasterizer.bypass_vs = 1
ctx.set_rasterizer(rasterizer)
# viewport (identity, we setup vertices in wincoords)
viewport = Viewport()
scale = FloatArray(4)
scale[0] = 1.0
scale[1] = 1.0
scale[2] = 1.0
scale[3] = 1.0
viewport.scale = scale
translate = FloatArray(4)
translate[0] = 0.0
translate[1] = 0.0
translate[2] = 0.0
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_sampler(0, sampler)
# texture
texture = dev.texture_create(format,
width,
height)
ctx.set_sampler_texture(0, texture)
expected_rgba = generate_data(texture.get_surface(usage = PIPE_BUFFER_USAGE_CPU_READ|PIPE_BUFFER_USAGE_CPU_WRITE))
cbuf_tex = dev.texture_create(PIPE_FORMAT_A8R8G8B8_UNORM,
width,
height,
usage = PIPE_TEXTURE_USAGE_RENDER_TARGET)
# drawing dest
cbuf = cbuf_tex.get_surface(usage = PIPE_BUFFER_USAGE_GPU_WRITE|PIPE_BUFFER_USAGE_GPU_READ)
fb = Framebuffer()
fb.width = width
fb.height = height
fb.num_cbufs = 1
fb.set_cbuf(0, cbuf)
ctx.surface_clear(cbuf, 0x00000000)
ctx.set_framebuffer(fb)
# vertex shader
vs = Shader('''
VERT1.1
DCL IN[0], POSITION, CONSTANT
DCL IN[1], GENERIC, CONSTANT
DCL OUT[0], POSITION, CONSTANT
DCL OUT[1], GENERIC, CONSTANT
0:MOV OUT[0], IN[0]
1:MOV OUT[1], IN[1]
2:END
''')
#vs.dump()
ctx.set_vertex_shader(vs)
# fragment shader
fs = Shader('''
FRAG1.1
DCL IN[0], GENERIC[0], PERSPECTIVE
DCL OUT[0], COLOR, CONSTANT
DCL SAMP[0], CONSTANT
0:TEX OUT[0], IN[0], SAMP[0], 2D
1:END
''')
fs.dump()
ctx.set_fragment_shader(fs)
nverts = 4
nattrs = 2
verts = FloatArray(nverts * nattrs * 4)
x = 0
y = 0
w = width
h = height
verts[ 0] = x # x1
verts[ 1] = y # y1
verts[ 2] = 0.0 # z1
verts[ 3] = 1.0 # w1
verts[ 4] = 0.0 # s1
verts[ 5] = 0.0 # t
verts[ 6] = 0.0
verts[ 7] = 0.0
verts[ 8] = x + w # x2
verts[ 9] = y # y2
verts[10] = 0.0 # z2
verts[11] = 1.0 # w2
verts[12] = 1.0 # s2
verts[13] = 0.0 # t2
verts[14] = 0.0
verts[15] = 0.0
verts[16] = x + w # x3
verts[17] = y + h # y3
verts[18] = 0.0 # z3
verts[19] = 1.0 # w3
verts[20] = 1.0 # s3
verts[21] = 1.0 # t3
verts[22] = 0.0
verts[23] = 0.0
verts[24] = x # x4
verts[25] = y + h # y4
verts[26] = 0.0 # z4
verts[27] = 1.0 # w4
verts[28] = 0.0 # s4
verts[29] = 1.0 # t4
verts[30] = 0.0
verts[31] = 0.0
ctx.draw_vertices(PIPE_PRIM_TRIANGLE_FAN,
nverts,
nattrs,
verts)
ctx.flush()
rgba = FloatArray(height*width*4)
cbuf_tex.get_surface(usage = PIPE_BUFFER_USAGE_CPU_READ).get_tile_rgba(x, y, w, h, rgba)
compare_rgba(width, height, rgba, expected_rgba)
show_image(texture.get_surface(usage = PIPE_BUFFER_USAGE_CPU_READ),
cbuf_tex.get_surface(usage = PIPE_BUFFER_USAGE_CPU_READ))
def main():
dev = Device()
test = TextureTest(dev = dev)
test.run()
if __name__ == '__main__':
main()
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