Mesa (gallium-fb-dimensions): python/samples: simple mrt test
Keith Whitwell
keithw at kemper.freedesktop.org
Fri Jan 8 14:58:08 UTC 2010
Module: Mesa
Branch: gallium-fb-dimensions
Commit: 19f3f7ff976f43049982db7454b3a1f686583a99
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=19f3f7ff976f43049982db7454b3a1f686583a99
Author: Keith Whitwell <keithw at vmware.com>
Date: Fri Jan 8 14:47:12 2010 +0000
python/samples: simple mrt test
---
src/gallium/state_trackers/python/samples/mrt.py | 243 ++++++++++++++++++++++
1 files changed, 243 insertions(+), 0 deletions(-)
diff --git a/src/gallium/state_trackers/python/samples/mrt.py b/src/gallium/state_trackers/python/samples/mrt.py
new file mode 100644
index 0000000..c382002
--- /dev/null
+++ b/src/gallium/state_trackers/python/samples/mrt.py
@@ -0,0 +1,243 @@
+#!/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.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 = 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
+ cbuf0 = dev.texture_create(
+ PIPE_FORMAT_X8R8G8B8_UNORM,
+ width, height,
+ tex_usage=PIPE_TEXTURE_USAGE_DISPLAY_TARGET,
+ ).get_surface()
+
+ cbuf1 = dev.texture_create(
+ PIPE_FORMAT_X8R8G8B8_UNORM,
+ width, height,
+ tex_usage=PIPE_TEXTURE_USAGE_DISPLAY_TARGET,
+ ).get_surface()
+
+ zbuf = dev.texture_create(
+ PIPE_FORMAT_Z16_UNORM,
+ width, height,
+ tex_usage=PIPE_TEXTURE_USAGE_DEPTH_STENCIL,
+ ).get_surface()
+ fb = Framebuffer()
+ fb.width = width
+ fb.height = height
+ fb.nr_cbufs = 2
+ fb.set_cbuf(0, cbuf0)
+ fb.set_cbuf(1, cbuf1)
+ 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[0]
+ DCL OUT[1], COLOR[1]
+ MOV OUT[0], IN[0]
+ MOV OUT[1], IN[0].yyyy
+ 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(cbuf0)
+ show_image(cbuf1)
+ #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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