233 lines
6.3 KiB
Python
233 lines
6.3 KiB
Python
#!/usr/bin/env python
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##########################################################################
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#
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# Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
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# All Rights Reserved.
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#
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# Permission is hereby granted, free of charge, to any person obtaining a
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# copy of this software and associated documentation files (the
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# "Software"), to deal in the Software without restriction, including
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# without limitation the rights to use, copy, modify, merge, publish,
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# distribute, sub license, and/or sell copies of the Software, and to
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# permit persons to whom the Software is furnished to do so, subject to
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# the following conditions:
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#
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# The above copyright notice and this permission notice (including the
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# next paragraph) shall be included in all copies or substantial portions
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# of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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# OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
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# IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
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# ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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# TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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# SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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#
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##########################################################################
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from gallium import *
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def make_image(surface):
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data = surface.get_tile_rgba8(0, 0, surface.width, surface.height)
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import Image
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outimage = Image.fromstring('RGBA', (surface.width, surface.height), data, "raw", 'RGBA', 0, 1)
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return outimage
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def save_image(filename, surface):
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outimage = make_image(surface)
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outimage.save(filename, "PNG")
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def show_image(surface):
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outimage = make_image(surface)
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import Tkinter as tk
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from PIL import Image, ImageTk
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root = tk.Tk()
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root.title('background image')
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image1 = ImageTk.PhotoImage(outimage)
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w = image1.width()
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h = image1.height()
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x = 100
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y = 100
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root.geometry("%dx%d+%d+%d" % (w, h, x, y))
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panel1 = tk.Label(root, image=image1)
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panel1.pack(side='top', fill='both', expand='yes')
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panel1.image = image1
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root.mainloop()
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def test(dev):
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ctx = dev.context_create()
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width = 255
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height = 255
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minz = 0.0
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maxz = 1.0
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# disabled blending/masking
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blend = Blend()
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blend.rt[0].rgb_src_factor = PIPE_BLENDFACTOR_ONE
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blend.rt[0].alpha_src_factor = PIPE_BLENDFACTOR_ONE
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blend.rt[0].rgb_dst_factor = PIPE_BLENDFACTOR_ZERO
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blend.rt[0].alpha_dst_factor = PIPE_BLENDFACTOR_ZERO
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blend.rt[0].colormask = PIPE_MASK_RGBA
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ctx.set_blend(blend)
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# depth/stencil/alpha
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depth_stencil_alpha = DepthStencilAlpha()
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depth_stencil_alpha.depth.enabled = 1
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depth_stencil_alpha.depth.writemask = 1
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depth_stencil_alpha.depth.func = PIPE_FUNC_LESS
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ctx.set_depth_stencil_alpha(depth_stencil_alpha)
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# rasterizer
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rasterizer = Rasterizer()
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rasterizer.front_winding = PIPE_WINDING_CW
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rasterizer.cull_mode = PIPE_WINDING_NONE
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rasterizer.scissor = 1
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ctx.set_rasterizer(rasterizer)
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# viewport
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viewport = Viewport()
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scale = FloatArray(4)
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scale[0] = width / 2.0
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scale[1] = -height / 2.0
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scale[2] = (maxz - minz) / 2.0
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scale[3] = 1.0
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viewport.scale = scale
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translate = FloatArray(4)
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translate[0] = width / 2.0
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translate[1] = height / 2.0
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translate[2] = (maxz - minz) / 2.0
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translate[3] = 0.0
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viewport.translate = translate
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ctx.set_viewport(viewport)
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# samplers
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sampler = Sampler()
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sampler.wrap_s = PIPE_TEX_WRAP_CLAMP_TO_EDGE
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sampler.wrap_t = PIPE_TEX_WRAP_CLAMP_TO_EDGE
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sampler.wrap_r = PIPE_TEX_WRAP_CLAMP_TO_EDGE
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sampler.min_mip_filter = PIPE_TEX_MIPFILTER_NONE
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sampler.min_img_filter = PIPE_TEX_MIPFILTER_NEAREST
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sampler.mag_img_filter = PIPE_TEX_MIPFILTER_NEAREST
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sampler.normalized_coords = 1
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ctx.set_fragment_sampler(0, sampler)
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# scissor
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scissor = Scissor()
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scissor.minx = 0
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scissor.miny = 0
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scissor.maxx = width
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scissor.maxy = height
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ctx.set_scissor(scissor)
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clip = Clip()
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clip.nr = 0
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ctx.set_clip(clip)
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# framebuffer
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cbuf = dev.texture_create(
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PIPE_FORMAT_X8R8G8B8_UNORM,
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width, height,
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tex_usage=PIPE_TEXTURE_USAGE_RENDER_TARGET,
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).get_surface()
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zbuf = dev.texture_create(
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PIPE_FORMAT_Z32_UNORM,
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width, height,
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tex_usage=PIPE_TEXTURE_USAGE_DEPTH_STENCIL,
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).get_surface()
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fb = Framebuffer()
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fb.width = width
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fb.height = height
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fb.nr_cbufs = 1
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fb.set_cbuf(0, cbuf)
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fb.set_zsbuf(zbuf)
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ctx.set_framebuffer(fb)
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rgba = FloatArray(4);
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rgba[0] = 0.0
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rgba[1] = 0.0
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rgba[2] = 0.0
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rgba[3] = 0.0
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ctx.clear(PIPE_CLEAR_COLOR | PIPE_CLEAR_DEPTHSTENCIL, rgba, 1.0, 0xff)
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# vertex shader
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vs = Shader('''
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VERT
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DCL IN[0], POSITION, CONSTANT
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DCL IN[1], COLOR, CONSTANT
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DCL OUT[0], POSITION, CONSTANT
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DCL OUT[1], COLOR, CONSTANT
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0:MOV OUT[0], IN[0]
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1:MOV OUT[1], IN[1]
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2:END
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''')
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ctx.set_vertex_shader(vs)
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# fragment shader
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fs = Shader('''
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FRAG
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DCL IN[0], COLOR, LINEAR
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DCL OUT[0], COLOR, CONSTANT
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0:MOV OUT[0], IN[0]
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1:END
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''')
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ctx.set_fragment_shader(fs)
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nverts = 3
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nattrs = 2
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verts = FloatArray(nverts * nattrs * 4)
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verts[ 0] = 0.0 # x1
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verts[ 1] = 0.8 # y1
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verts[ 2] = 0.2 # z1
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verts[ 3] = 1.0 # w1
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verts[ 4] = 1.0 # r1
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verts[ 5] = 0.0 # g1
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verts[ 6] = 0.0 # b1
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verts[ 7] = 1.0 # a1
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verts[ 8] = -0.8 # x2
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verts[ 9] = -0.8 # y2
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verts[10] = 0.5 # z2
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verts[11] = 1.0 # w2
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verts[12] = 0.0 # r2
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verts[13] = 1.0 # g2
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verts[14] = 0.0 # b2
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verts[15] = 1.0 # a2
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verts[16] = 0.8 # x3
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verts[17] = -0.8 # y3
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verts[18] = 0.8 # z3
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verts[19] = 1.0 # w3
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verts[20] = 0.0 # r3
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verts[21] = 0.0 # g3
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verts[22] = 1.0 # b3
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verts[23] = 1.0 # a3
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ctx.draw_vertices(PIPE_PRIM_TRIANGLES,
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nverts,
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nattrs,
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verts)
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ctx.flush()
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show_image(cbuf)
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#show_image(zbuf)
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#save_image('cbuf.png', cbuf)
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#save_image('zbuf.png', zbuf)
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def main():
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dev = Device()
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test(dev)
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if __name__ == '__main__':
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main()
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