From: Michal Krol <michal@vmware.com>
Date: Sat, 4 Apr 2009 11:34:27 +0000 (+0200)
Subject: python/regress: Initial fragment shader test suite.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=4661817dacec5ef77d013828423c7ebeacf807c5;p=mesa.git

python/regress: Initial fragment shader test suite.
---

diff --git a/src/gallium/state_trackers/python/tests/regress/fragment-shader/frag-abs.sh b/src/gallium/state_trackers/python/tests/regress/fragment-shader/frag-abs.sh
new file mode 100644
index 00000000000..7a0006bf660
--- /dev/null
+++ b/src/gallium/state_trackers/python/tests/regress/fragment-shader/frag-abs.sh
@@ -0,0 +1,13 @@
+FRAG1.1
+
+DCL IN[0], COLOR, LINEAR
+DCL OUT[0], COLOR
+
+DCL TEMP[0]
+
+IMM FLT32 { -0.5, -0.4, -0.6, 0.0 }
+
+ADD TEMP[0], IN[0], IMM[0]
+ABS OUT[0], TEMP[0]
+
+END
diff --git a/src/gallium/state_trackers/python/tests/regress/fragment-shader/frag-add.sh b/src/gallium/state_trackers/python/tests/regress/fragment-shader/frag-add.sh
new file mode 100644
index 00000000000..f7836c85ddb
--- /dev/null
+++ b/src/gallium/state_trackers/python/tests/regress/fragment-shader/frag-add.sh
@@ -0,0 +1,8 @@
+FRAG1.1
+
+DCL IN[0], COLOR, LINEAR
+DCL OUT[0], COLOR
+
+ADD OUT[0], IN[0], IN[0]
+
+END
diff --git a/src/gallium/state_trackers/python/tests/regress/fragment-shader/frag-dp3.sh b/src/gallium/state_trackers/python/tests/regress/fragment-shader/frag-dp3.sh
new file mode 100644
index 00000000000..c89cd748a80
--- /dev/null
+++ b/src/gallium/state_trackers/python/tests/regress/fragment-shader/frag-dp3.sh
@@ -0,0 +1,8 @@
+FRAG1.1
+
+DCL IN[0], COLOR, LINEAR
+DCL OUT[0], COLOR
+
+DP3 OUT[0], IN[0], IN[0]
+
+END
diff --git a/src/gallium/state_trackers/python/tests/regress/fragment-shader/frag-dp4.sh b/src/gallium/state_trackers/python/tests/regress/fragment-shader/frag-dp4.sh
new file mode 100644
index 00000000000..6517e3c4945
--- /dev/null
+++ b/src/gallium/state_trackers/python/tests/regress/fragment-shader/frag-dp4.sh
@@ -0,0 +1,8 @@
+FRAG1.1
+
+DCL IN[0], COLOR, LINEAR
+DCL OUT[0], COLOR
+
+DP4 OUT[0], IN[0].xyzx, IN[0].xyzx
+
+END
diff --git a/src/gallium/state_trackers/python/tests/regress/fragment-shader/frag-dst.sh b/src/gallium/state_trackers/python/tests/regress/fragment-shader/frag-dst.sh
new file mode 100644
index 00000000000..464880ba68f
--- /dev/null
+++ b/src/gallium/state_trackers/python/tests/regress/fragment-shader/frag-dst.sh
@@ -0,0 +1,8 @@
+FRAG1.1
+
+DCL IN[0], COLOR, LINEAR
+DCL OUT[0], COLOR
+
+DST OUT[0], IN[0], IN[0]
+
+END
diff --git a/src/gallium/state_trackers/python/tests/regress/fragment-shader/frag-ex2.sh b/src/gallium/state_trackers/python/tests/regress/fragment-shader/frag-ex2.sh
new file mode 100644
index 00000000000..2684076f1d6
--- /dev/null
+++ b/src/gallium/state_trackers/python/tests/regress/fragment-shader/frag-ex2.sh
@@ -0,0 +1,11 @@
+FRAG1.1
+
+DCL IN[0], COLOR, LINEAR
+DCL OUT[0], COLOR
+
+DCL TEMP[0]
+
+EX2 TEMP[0], IN[0].xxxx
+MUL OUT[0], TEMP[0], IN[0]
+
+END
diff --git a/src/gallium/state_trackers/python/tests/regress/fragment-shader/frag-flr.sh b/src/gallium/state_trackers/python/tests/regress/fragment-shader/frag-flr.sh
new file mode 100644
index 00000000000..ad11e28918a
--- /dev/null
+++ b/src/gallium/state_trackers/python/tests/regress/fragment-shader/frag-flr.sh
@@ -0,0 +1,15 @@
+FRAG1.1
+
+DCL IN[0], COLOR, LINEAR
+DCL OUT[0], COLOR
+
+DCL TEMP[0]
+
+IMM FLT32 { 2.5, 4.0,  2.0, 1.0 }
+IMM FLT32 { 0.4, 0.25, 0.5, 1.0 }
+
+MUL TEMP[0], IN[0], IMM[0]
+FLR TEMP[0], TEMP[0]
+MUL OUT[0], TEMP[0], IMM[1]
+
+END
diff --git a/src/gallium/state_trackers/python/tests/regress/fragment-shader/frag-frc.sh b/src/gallium/state_trackers/python/tests/regress/fragment-shader/frag-frc.sh
new file mode 100644
index 00000000000..4f3aa30d666
--- /dev/null
+++ b/src/gallium/state_trackers/python/tests/regress/fragment-shader/frag-frc.sh
@@ -0,0 +1,13 @@
+FRAG1.1
+
+DCL IN[0], COLOR, LINEAR
+DCL OUT[0], COLOR
+
+DCL TEMP[0]
+
+IMM FLT32 { 2.7, 3.1, 4.5, 1.0 }
+
+MUL TEMP[0], IN[0], IMM[0]
+FRC OUT[0], TEMP[0]
+
+END
diff --git a/src/gallium/state_trackers/python/tests/regress/fragment-shader/frag-lg2.sh b/src/gallium/state_trackers/python/tests/regress/fragment-shader/frag-lg2.sh
new file mode 100644
index 00000000000..54c7c644598
--- /dev/null
+++ b/src/gallium/state_trackers/python/tests/regress/fragment-shader/frag-lg2.sh
@@ -0,0 +1,15 @@
+FRAG1.1
+
+DCL IN[0], COLOR, LINEAR
+DCL OUT[0], COLOR
+
+DCL TEMP[0]
+
+IMM FLT32 { 1.0, 0.0, 0.0, 0.0 }
+IMM FLT32 { 0.5, 0.0, 0.0, 0.0 }
+
+ADD TEMP[0], IN[0], IMM[0]
+LG2 TEMP[0].x, TEMP[0].xxxx
+ADD OUT[0], TEMP[0], IMM[1]
+
+END
diff --git a/src/gallium/state_trackers/python/tests/regress/fragment-shader/frag-lit.sh b/src/gallium/state_trackers/python/tests/regress/fragment-shader/frag-lit.sh
new file mode 100644
index 00000000000..0e78ef86b54
--- /dev/null
+++ b/src/gallium/state_trackers/python/tests/regress/fragment-shader/frag-lit.sh
@@ -0,0 +1,8 @@
+FRAG1.1
+
+DCL IN[0], COLOR, LINEAR
+DCL OUT[0], COLOR
+
+LIT OUT[0], IN[0]
+
+END
diff --git a/src/gallium/state_trackers/python/tests/regress/fragment-shader/frag-lrp.sh b/src/gallium/state_trackers/python/tests/regress/fragment-shader/frag-lrp.sh
new file mode 100644
index 00000000000..e9ee0f81478
--- /dev/null
+++ b/src/gallium/state_trackers/python/tests/regress/fragment-shader/frag-lrp.sh
@@ -0,0 +1,11 @@
+FRAG1.1
+
+DCL IN[0], COLOR, LINEAR
+DCL OUT[0], COLOR
+
+DCL TEMP[0]
+
+ABS TEMP[0], IN[0]
+LRP OUT[0], TEMP[0], IN[0].xxxx, IN[0].yyyy
+
+END
diff --git a/src/gallium/state_trackers/python/tests/regress/fragment-shader/frag-mad.sh b/src/gallium/state_trackers/python/tests/regress/fragment-shader/frag-mad.sh
new file mode 100644
index 00000000000..439acd5bbde
--- /dev/null
+++ b/src/gallium/state_trackers/python/tests/regress/fragment-shader/frag-mad.sh
@@ -0,0 +1,11 @@
+FRAG1.1
+
+DCL IN[0], COLOR, LINEAR
+DCL OUT[0], COLOR
+
+IMM FLT32 { 0.5, 0.4, 0.6, 1.0 }
+IMM FLT32 { 0.5, 0.4, 0.6, 0.0 }
+
+MAD OUT[0], IN[0], IMM[0], IMM[1]
+
+END
diff --git a/src/gallium/state_trackers/python/tests/regress/fragment-shader/frag-max.sh b/src/gallium/state_trackers/python/tests/regress/fragment-shader/frag-max.sh
new file mode 100644
index 00000000000..ab21b245dd8
--- /dev/null
+++ b/src/gallium/state_trackers/python/tests/regress/fragment-shader/frag-max.sh
@@ -0,0 +1,10 @@
+FRAG1.1
+
+DCL IN[0], COLOR, LINEAR
+DCL OUT[0], COLOR
+
+IMM FLT32 { 0.4, 0.4, 0.4, 0.0 }
+
+MAX OUT[0], IN[0], IMM[0]
+
+END
diff --git a/src/gallium/state_trackers/python/tests/regress/fragment-shader/frag-min.sh b/src/gallium/state_trackers/python/tests/regress/fragment-shader/frag-min.sh
new file mode 100644
index 00000000000..969ae73d98e
--- /dev/null
+++ b/src/gallium/state_trackers/python/tests/regress/fragment-shader/frag-min.sh
@@ -0,0 +1,10 @@
+FRAG1.1
+
+DCL IN[0], COLOR, LINEAR
+DCL OUT[0], COLOR
+
+IMM FLT32 { 0.6, 0.6, 0.6, 1.0 }
+
+MIN OUT[0], IN[0], IMM[0]
+
+END
diff --git a/src/gallium/state_trackers/python/tests/regress/fragment-shader/frag-mov.sh b/src/gallium/state_trackers/python/tests/regress/fragment-shader/frag-mov.sh
new file mode 100644
index 00000000000..612975e0570
--- /dev/null
+++ b/src/gallium/state_trackers/python/tests/regress/fragment-shader/frag-mov.sh
@@ -0,0 +1,8 @@
+FRAG1.1
+
+DCL IN[0], COLOR, LINEAR
+DCL OUT[0], COLOR
+
+MOV OUT[0], IN[0]
+
+END
diff --git a/src/gallium/state_trackers/python/tests/regress/fragment-shader/frag-mul.sh b/src/gallium/state_trackers/python/tests/regress/fragment-shader/frag-mul.sh
new file mode 100644
index 00000000000..ed158b0fc69
--- /dev/null
+++ b/src/gallium/state_trackers/python/tests/regress/fragment-shader/frag-mul.sh
@@ -0,0 +1,10 @@
+FRAG1.1
+
+DCL IN[0], COLOR, LINEAR
+DCL OUT[0], COLOR
+
+IMM FLT32 { 0.5, 0.6, 0.7, 1.0 }
+
+MUL OUT[0], IN[0], IMM[0]
+
+END
diff --git a/src/gallium/state_trackers/python/tests/regress/fragment-shader/frag-rcp.sh b/src/gallium/state_trackers/python/tests/regress/fragment-shader/frag-rcp.sh
new file mode 100644
index 00000000000..cc9feef07e1
--- /dev/null
+++ b/src/gallium/state_trackers/python/tests/regress/fragment-shader/frag-rcp.sh
@@ -0,0 +1,15 @@
+FRAG1.1
+
+DCL IN[0], COLOR, LINEAR
+DCL OUT[0], COLOR
+
+DCL TEMP[0]
+
+IMM FLT32 { 1.0, 0.0, 0.0, 0.0 }
+IMM FLT32 { 1.5, 0.0, 0.0, 0.0 }
+
+ADD TEMP[0], IN[0], IMM[0]
+RCP TEMP[0].x, TEMP[0].xxxx
+SUB OUT[0], TEMP[0], IMM[1]
+
+END
diff --git a/src/gallium/state_trackers/python/tests/regress/fragment-shader/frag-rsq.sh b/src/gallium/state_trackers/python/tests/regress/fragment-shader/frag-rsq.sh
new file mode 100644
index 00000000000..695621fdc97
--- /dev/null
+++ b/src/gallium/state_trackers/python/tests/regress/fragment-shader/frag-rsq.sh
@@ -0,0 +1,15 @@
+FRAG1.1
+
+DCL IN[0], COLOR, LINEAR
+DCL OUT[0], COLOR
+
+DCL TEMP[0]
+
+IMM FLT32 { 1.0, 0.0, 0.0, 0.0 }
+IMM FLT32 { 1.5, 0.0, 0.0, 0.0 }
+
+ADD TEMP[0], IN[0], IMM[0]
+RSQ TEMP[0].x, TEMP[0].xxxx
+SUB OUT[0], TEMP[0], IMM[1]
+
+END
diff --git a/src/gallium/state_trackers/python/tests/regress/fragment-shader/frag-sge.sh b/src/gallium/state_trackers/python/tests/regress/fragment-shader/frag-sge.sh
new file mode 100644
index 00000000000..9505bc3c3e3
--- /dev/null
+++ b/src/gallium/state_trackers/python/tests/regress/fragment-shader/frag-sge.sh
@@ -0,0 +1,13 @@
+FRAG1.1
+
+DCL IN[0], COLOR, LINEAR
+DCL OUT[0], COLOR
+
+DCL TEMP[0]
+
+IMM FLT32 { 0.6, 0.6, 0.6, 0.0 }
+
+SGE TEMP[0], IN[0], IMM[0]
+MUL OUT[0], IN[0], TEMP[0]
+
+END
diff --git a/src/gallium/state_trackers/python/tests/regress/fragment-shader/frag-slt.sh b/src/gallium/state_trackers/python/tests/regress/fragment-shader/frag-slt.sh
new file mode 100644
index 00000000000..f2a1521cbf0
--- /dev/null
+++ b/src/gallium/state_trackers/python/tests/regress/fragment-shader/frag-slt.sh
@@ -0,0 +1,13 @@
+FRAG1.1
+
+DCL IN[0], COLOR, LINEAR
+DCL OUT[0], COLOR
+
+DCL TEMP[0]
+
+IMM FLT32 { 0.6, 0.6, 0.6, 0.0 }
+
+SLT TEMP[0], IN[0], IMM[0]
+MUL OUT[0], IN[0], TEMP[0]
+
+END
diff --git a/src/gallium/state_trackers/python/tests/regress/fragment-shader/frag-srcmod-abs.sh b/src/gallium/state_trackers/python/tests/regress/fragment-shader/frag-srcmod-abs.sh
new file mode 100644
index 00000000000..9cd4b682955
--- /dev/null
+++ b/src/gallium/state_trackers/python/tests/regress/fragment-shader/frag-srcmod-abs.sh
@@ -0,0 +1,13 @@
+FRAG1.1
+
+DCL IN[0], COLOR, LINEAR
+DCL OUT[0], COLOR
+
+DCL TEMP[0]
+
+IMM FLT32 { -0.3, -0.5, -0.4, 0.0 }
+
+ADD TEMP[0], IN[0], IMM[0]
+MOV OUT[0], |TEMP[0]|
+
+END
diff --git a/src/gallium/state_trackers/python/tests/regress/fragment-shader/frag-srcmod-absneg.sh b/src/gallium/state_trackers/python/tests/regress/fragment-shader/frag-srcmod-absneg.sh
new file mode 100644
index 00000000000..acd6aa750dd
--- /dev/null
+++ b/src/gallium/state_trackers/python/tests/regress/fragment-shader/frag-srcmod-absneg.sh
@@ -0,0 +1,15 @@
+FRAG1.1
+
+DCL IN[0], COLOR, LINEAR
+DCL OUT[0], COLOR
+
+DCL TEMP[0]
+
+IMM FLT32 { -0.2, -0.3, -0.4, 0.0 }
+IMM FLT32 { -1.0, -1.0, -1.0, -1.0 }
+
+ADD TEMP[0], IN[0], IMM[0]
+MOV TEMP[0], -|TEMP[0]|
+MUL OUT[0], TEMP[0], IMM[1]
+
+END
diff --git a/src/gallium/state_trackers/python/tests/regress/fragment-shader/frag-srcmod-neg.sh b/src/gallium/state_trackers/python/tests/regress/fragment-shader/frag-srcmod-neg.sh
new file mode 100644
index 00000000000..ba1b61503b8
--- /dev/null
+++ b/src/gallium/state_trackers/python/tests/regress/fragment-shader/frag-srcmod-neg.sh
@@ -0,0 +1,11 @@
+FRAG1.1
+
+DCL IN[0], COLOR, LINEAR
+DCL OUT[0], COLOR
+
+DCL TEMP[0]
+
+SUB TEMP[0], IN[0], IN[0].yzxw
+MOV OUT[0], -TEMP[0]
+
+END
diff --git a/src/gallium/state_trackers/python/tests/regress/fragment-shader/frag-srcmod-swz.sh b/src/gallium/state_trackers/python/tests/regress/fragment-shader/frag-srcmod-swz.sh
new file mode 100644
index 00000000000..192aa7bb26b
--- /dev/null
+++ b/src/gallium/state_trackers/python/tests/regress/fragment-shader/frag-srcmod-swz.sh
@@ -0,0 +1,8 @@
+FRAG1.1
+
+DCL IN[0], COLOR, LINEAR
+DCL OUT[0], COLOR
+
+MOV OUT[0], IN[0].yxzw
+
+END
diff --git a/src/gallium/state_trackers/python/tests/regress/fragment-shader/frag-sub.sh b/src/gallium/state_trackers/python/tests/regress/fragment-shader/frag-sub.sh
new file mode 100644
index 00000000000..83441fa8207
--- /dev/null
+++ b/src/gallium/state_trackers/python/tests/regress/fragment-shader/frag-sub.sh
@@ -0,0 +1,8 @@
+FRAG1.1
+
+DCL IN[0], COLOR, LINEAR
+DCL OUT[0], COLOR
+
+SUB OUT[0], IN[0], IN[0].yzxw
+
+END
diff --git a/src/gallium/state_trackers/python/tests/regress/fragment-shader/frag-xpd.sh b/src/gallium/state_trackers/python/tests/regress/fragment-shader/frag-xpd.sh
new file mode 100644
index 00000000000..d6f66c4927a
--- /dev/null
+++ b/src/gallium/state_trackers/python/tests/regress/fragment-shader/frag-xpd.sh
@@ -0,0 +1,8 @@
+FRAG1.1
+
+DCL IN[0], COLOR, LINEAR
+DCL OUT[0], COLOR
+
+XPD OUT[0], IN[0], IN[0].yzxw
+
+END
diff --git a/src/gallium/state_trackers/python/tests/regress/fragment-shader/fragment-shader.py b/src/gallium/state_trackers/python/tests/regress/fragment-shader/fragment-shader.py
new file mode 100644
index 00000000000..14d8dc60bba
--- /dev/null
+++ b/src/gallium/state_trackers/python/tests/regress/fragment-shader/fragment-shader.py
@@ -0,0 +1,213 @@
+#!/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_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)
+    ctx.surface_clear(cbuf, 0x80808080)
+
+    # vertex shader
+    vs = Shader('''
+        VERT1.1
+        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()