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Diffstat (limited to 'src/gallium/state_trackers/python/tests/texture.py')
| -rw-r--r-- | src/gallium/state_trackers/python/tests/texture.py | 236 |
1 files changed, 236 insertions, 0 deletions
diff --git a/src/gallium/state_trackers/python/tests/texture.py b/src/gallium/state_trackers/python/tests/texture.py new file mode 100644 index 0000000000..d0b657423e --- /dev/null +++ b/src/gallium/state_trackers/python/tests/texture.py @@ -0,0 +1,236 @@ +#!/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 * +from base import * +from data import generate_data + + +def compare_rgba(width, height, rgba1, rgba2, tol=0.01): + result = True + 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: + sys.stderr.write("x=%u, y=%u, ch=%u differ: %f vs %f\n", + x, y, ch, v1, v2) + result = False + + +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 = 256 + height = 256 + + # 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) + + surface = texture.get_surface(usage = PIPE_BUFFER_USAGE_CPU_READ|PIPE_BUFFER_USAGE_CPU_WRITE) + + expected_rgba = generate_data(surface) + + cbuf_tex = dev.texture_create(PIPE_FORMAT_A8R8G8B8_UNORM, + width, + height) + + # drawing dest + cbuf = cbuf_tex.get_surface(usage = PIPE_BUFFER_USAGE_GPU_WRITE) + fb = Framebuffer() + fb.width = cbuf.width + fb.height = cbuf.height + fb.num_cbufs = 1 + fb.set_cbuf(0, cbuf) + 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.surface_clear(cbuf, 0x00000000) + + ctx.draw_vertices(PIPE_PRIM_TRIANGLE_FAN, + nverts, + nattrs, + verts) + + ctx.flush() + + rgba = FloatArray(surface.height*surface.width*4) + + cbuf.get_tile_rgba(x, y, w, h, rgba) + + compare_rgba(width, height, rgba, expected_rgba) + + #save_image("texture1.png", surface) + #save_image("texture2.png", cbuf) + + +def main(): + dev = Device(hardware = False) + test = TextureTest(dev = dev) + test.run() + + +if __name__ == '__main__': + main() |