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61 lines
2.7 KiB
61 lines
2.7 KiB
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drawElements Quality Program Test Specification
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-----------------------------------------------
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Copyright 2014 The Android Open Source Project
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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-------------------------------------------------------------------------
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Multiple vertex attribute vertex array tests
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Tests:
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+ dEQP-GLES2.functional.vertex_arrays.multiple_attributes.*
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Includes:
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+ Using different attribute counts.
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+ Multiple attributes from different sources(buffer, user pointer).
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+ Multiple attributes with different strides
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+ Multiple attributes with different input types.
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Excludes:
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Description:
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Testcases generate data that defines quads in testcase specifig format.
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This takes account stride, offsets and other parameters. First attribute is used
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as coordinates and must have two or more components to form distinct coordinates.
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First two components are coordinates and six subsequent attributes form two triangles
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which define a quad. Third and fourth component are same for each vertex in quad.
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Other attributes are used to define color for quad. These are generated to have
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same value for each vertex in quad. This data is uploaded to buffer or used from
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user pointer while rendering. Rendering uses simple shader that takes first
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attributes first two components and adds first to third component and second
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to fourth component, if more than two components are used. First and third component
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are used as x coordinate and second and fourth as y. These values are also scaled to
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range from -1.0 to 1.0. Other attributes are multiplied component wise and are scaled
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then to range from 0.0 to 1.0 and used as color. Test renders only once and result is
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checked against reference implementations result.
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Attribute count tests render simple float data from user pointer using vec2 in
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shader.
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Storage test render using three attributes from buffer or user pointer. Two component
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float data is used as vec2 in shader.
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Stride tests use three attributes with different strides. Two component float
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data is used as vec2 in shader. Strides test uses npot stride, pot stride and types
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own size as stride.
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Input type testcases use three attributes with different input types. Attributes
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are used as vec2 in shader.
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