1 ------------------------------------------------------------------------- 2 drawElements Quality Program Test Specification 3 ----------------------------------------------- 4 5 Copyright 2014 The Android Open Source Project 6 7 Licensed under the Apache License, Version 2.0 (the "License"); 8 you may not use this file except in compliance with the License. 9 You may obtain a copy of the License at 10 11 http://www.apache.org/licenses/LICENSE-2.0 12 13 Unless required by applicable law or agreed to in writing, software 14 distributed under the License is distributed on an "AS IS" BASIS, 15 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 16 See the License for the specific language governing permissions and 17 limitations under the License. 18 ------------------------------------------------------------------------- 19 Separate shader object tests 20 21 Tests: 22 + dEQP-GLES31.separate_shader.* 23 24 Includes: 25 26 + Single-program and two-program pipelines 27 + Replacement of pipeline stages 28 + Independence of homonymous uniforms and constants in the pipeline's 29 programs 30 + Interface compatibility between shader stages 31 + glProgramUniform on the pipeline's stages 32 + glCreateShaderProgram 33 + glActiveShaderProgram 34 + glBindProgramPipeline vs glUseProgram priority 35 + glGetProgramPipelineiv queries: 36 - GL_ACTIVE_PROGRAM 37 - GL_VERTEX_SHADER 38 - GL_FRAGMENT_SHADER 39 40 Excludes: 41 42 + Testing pipeline rendering against a hardware-independent reference 43 renderer 44 45 46 The "api.current_program_priority" test case checks that a bound pipeline 47 has no effect when there is a current program. The test creates a program 48 pipeline and a differently behaving monolithic program. It then calls 49 glUseProgram and and glBindProgramPipeline and draws a triangle. The 50 resulting image is compared to a reference image drawn with the program 51 but without a bound program pipeline. 52 53 The "api.active_program_uniform" test case creates a pipeline and a 54 program, binds the pipeline and sets that program as the pipeline's active 55 program. After this, glUniform is called and a triangle is drawn. The 56 resulting image is compared to a reference image from a similar program 57 whose uniform was set after glUseProgram. 58 59 The "api.pipeline_programs" test case checks that glGetProgramPipelineiv 60 returns the correct programs for vertex and shader stages. 61 62 The "api.pipeline_active" test case checks that glGetProgramPipelineiv 63 returns the program that was set as the pipeline's active program. 64 65 66 The following tests create a program pipeline with one or two programs, 67 and then possibly replace either or both of the stages with a new 68 single-shader program. A triangle is drawn with the pipeline and the 69 result is compared to a triangle drawn with an equivalent monolithic 70 program. 71 72 In the "pipeline.*" test cases the shaders have uniforms or constants, but 73 no varyings. The variables in distinct programs may have the same name. 74 75 In the "program_uniform.*" test cases the shaders have uniforms which are 76 set with glProgramUniform. 77 78 In the "create_shader_program.*" test cases the single-shader programs in 79 the pipeline are created with glCreateShaderProgram. 80 81 In the "interface.*" test cases there is a varying between the vertex and 82 fragment shaders. The declarations of the vertex output and fragment input 83 variables may have different qualifiers or names. 84 85 The "random.*" test cases create random pipeline configurations that mix 86 properties of the previous test case groups. The shaders may have zero, 87 one or more varyings. The values of different varyings are rendered as 88 diagonal stripes in the drawn triangle. 89
