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baldurk
ec8564642a
* Instead of only doing a very lightweight check to see if the API is available up-front, we now share the API initialisation among all API tests far enough to determine availability of extensions, features, etc. Then we can precisely determine which tests are available and which aren't before running.
416 lines
11 KiB
C++
416 lines
11 KiB
C++
/******************************************************************************
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* The MIT License (MIT)
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*
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* Copyright (c) 2015-2019 Baldur Karlsson
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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******************************************************************************/
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#include "gl_test.h"
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struct GL_Resource_Lifetimes : OpenGLGraphicsTest
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{
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static constexpr const char *Description =
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"Test various edge-case resource lifetimes: a resource that is first dirtied within a frame "
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"so needs initial contents created for it, and a resource that is created and destroyed "
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"mid-frame (which also gets dirtied after use).";
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std::string common = R"EOSHADER(
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#version 420 core
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#define v2f v2f_block \
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{ \
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vec4 pos; \
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vec4 col; \
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vec4 uv; \
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}
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)EOSHADER";
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std::string vertex = R"EOSHADER(
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layout(location = 0) in vec3 Position;
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layout(location = 1) in vec4 Color;
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layout(location = 2) in vec2 UV;
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out gl_PerVertex {
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vec4 gl_Position;
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};
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out v2f vertOut;
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void main()
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{
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vertOut.pos = vec4(Position.xyz, 1);
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gl_Position = vertOut.pos;
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vertOut.col = Color;
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vertOut.uv = vec4(UV.xy, 0, 1);
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}
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)EOSHADER";
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std::string pixel = R"EOSHADER(
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in v2f vertIn;
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layout(location = 0, index = 0) out vec4 Color;
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layout(binding = 0) uniform sampler2D checker;
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layout(binding = 1) uniform sampler2D smiley;
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layout(std140) uniform constsbuf
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{
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vec4 flags;
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};
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uniform vec4 flags2;
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void main()
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{
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if(flags.x != 1.0f || flags.y != 2.0f || flags.z != 4.0f || flags.w != 8.0f)
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{
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Color = vec4(1.0f, 0.0f, 1.0f, 1.0f);
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return;
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}
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if(flags != flags2)
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{
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Color = vec4(0.5f, 0.0f, 0.5f, 1.0f);
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return;
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}
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Color = texture(smiley, vertIn.uv.xy * 2.0f) * texture(checker, vertIn.uv.xy * 5.0f);
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Color.w = 1.0f;
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}
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)EOSHADER";
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std::string dummy = R"EOSHADER(
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#version 420 core
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layout(location = 0, index = 0) out vec4 Color;
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void main()
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{
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Color = vec4(1.0f, 0.0f, 0.0f, 1.0f);
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}
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)EOSHADER";
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int main()
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{
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// initialise, create window, create context, etc
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if(!Init())
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return 3;
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GLuint vb = MakeBuffer();
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glBindBuffer(GL_ARRAY_BUFFER, vb);
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glBufferStorage(GL_ARRAY_BUFFER, sizeof(DefaultTri), DefaultTri, 0);
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uint16_t indices[] = {0, 1, 2};
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GLuint ib = MakeBuffer();
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glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, ib);
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glBufferStorage(GL_ELEMENT_ARRAY_BUFFER, sizeof(indices), indices, 0);
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Texture rgba8;
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LoadXPM(SmileyTexture, rgba8);
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GLuint offscreen = MakeTexture();
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glBindTexture(GL_TEXTURE_2D, offscreen);
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glTexStorage2D(GL_TEXTURE_2D, 1, GL_RGBA8, 128, 128);
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GLuint smiley = MakeTexture();
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glBindTexture(GL_TEXTURE_2D, smiley);
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glTexStorage2D(GL_TEXTURE_2D, 1, GL_RGBA8, rgba8.width, rgba8.height);
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glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, rgba8.width, rgba8.height, GL_RGBA, GL_UNSIGNED_BYTE,
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rgba8.data.data());
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glActiveTexture(GL_TEXTURE1);
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glBindTexture(GL_TEXTURE_2D, smiley);
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glActiveTexture(GL_TEXTURE0);
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glBindTexture(GL_TEXTURE_2D, 0);
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GLuint vsprog = MakeProgram(common + vertex, "");
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std::string fssrc = common + pixel;
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const char *fssrc_c = fssrc.c_str();
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const char *dummysrc_c = dummy.c_str();
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// function to set up a VAO
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auto SetupVAO = [ib]() {
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GLuint vao = 0;
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glGenVertexArrays(1, &vao);
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glBindVertexArray(vao);
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glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, sizeof(DefaultA2V), (void *)(0));
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glVertexAttribPointer(1, 4, GL_FLOAT, GL_FALSE, sizeof(DefaultA2V), (void *)(sizeof(Vec3f)));
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glVertexAttribPointer(2, 2, GL_FLOAT, GL_FALSE, sizeof(DefaultA2V),
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(void *)(sizeof(Vec3f) + sizeof(Vec4f)));
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glEnableVertexAttribArray(0);
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glEnableVertexAttribArray(1);
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glEnableVertexAttribArray(2);
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glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, ib);
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return vao;
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};
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// function to trash it again afterwards so that we are forced to reset the state to properly
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// replay
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auto TrashVAO = [](GLuint vao) {
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glDisableVertexAttribArray(0);
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glDisableVertexAttribArray(1);
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glDisableVertexAttribArray(2);
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glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
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glDeleteVertexArrays(1, &vao);
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};
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// Sampler setup and trashing
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auto SetupSampler = []() {
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GLuint sampler = 0;
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glGenSamplers(1, &sampler);
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glBindSampler(1, sampler);
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glSamplerParameteri(sampler, GL_TEXTURE_WRAP_R, GL_REPEAT);
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glSamplerParameteri(sampler, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
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return sampler;
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};
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auto TrashSampler = [](GLuint sampler) {
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glSamplerParameteri(sampler, GL_TEXTURE_WRAP_R, GL_CLAMP_TO_EDGE);
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glSamplerParameteri(sampler, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
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glDeleteSamplers(1, &sampler);
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};
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auto SetupProgram = [fssrc_c]() {
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GLuint prog = glCreateProgram();
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glProgramParameteri(prog, GL_PROGRAM_SEPARABLE, GL_TRUE);
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GLuint shad = glCreateShader(GL_FRAGMENT_SHADER);
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glShaderSource(shad, 1, &fssrc_c, NULL);
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glCompileShader(shad);
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glAttachShader(prog, shad);
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glLinkProgram(prog);
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glDetachShader(prog, shad);
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glDeleteShader(shad);
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glUniformBlockBinding(prog, glGetUniformBlockIndex(prog, "constsbuf"), 5);
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const Vec4f flags = {1.0f, 2.0f, 4.0f, 8.0f};
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glProgramUniform4fv(prog, glGetUniformLocation(prog, "flags2"), 1, &flags.x);
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return prog;
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};
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auto TrashProgram = [dummysrc_c](GLuint prog) {
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glUniformBlockBinding(prog, glGetUniformBlockIndex(prog, "constsbuf"), 4);
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const Vec4f empty = {};
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glProgramUniform4fv(prog, glGetUniformLocation(prog, "flags2"), 1, &empty.x);
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glDeleteProgram(prog);
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};
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// Program pipeline setup and trashing
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auto SetupPipe = [vsprog](GLuint prog) {
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GLuint pipe = 0;
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glGenProgramPipelines(1, &pipe);
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glBindProgramPipeline(pipe);
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glUseProgramStages(pipe, GL_VERTEX_SHADER_BIT, vsprog);
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glUseProgramStages(pipe, GL_FRAGMENT_SHADER_BIT, prog);
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return pipe;
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};
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auto TrashPipe = [](GLuint pipe) {
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glUseProgramStages(pipe, GL_VERTEX_SHADER_BIT, 0);
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glUseProgramStages(pipe, GL_FRAGMENT_SHADER_BIT, 0);
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glDeleteProgramPipelines(1, &pipe);
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};
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auto SetupFBO = [offscreen]() {
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GLuint fbo = 0;
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glGenFramebuffers(1, &fbo);
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glBindFramebuffer(GL_FRAMEBUFFER, fbo);
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glFramebufferTexture(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, offscreen, 0);
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GLenum col0 = GL_COLOR_ATTACHMENT0;
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glDrawBuffers(1, &col0);
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return fbo;
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};
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auto TrashFBO = [](GLuint fbo) {
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glFramebufferTexture(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, 0, 0);
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GLenum col0 = GL_NONE;
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glDrawBuffers(1, &col0);
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glDeleteFramebuffers(1, &fbo);
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};
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auto SetupTex = []() {
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const uint32_t checker[4 * 4] = {
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// X X O O
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0xffffffff, 0xffffffff, 0, 0,
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// X X O O
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0xffffffff, 0xffffffff, 0, 0,
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// O O X X
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0, 0, 0xffffffff, 0xffffffff,
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// O O X X
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0, 0, 0xffffffff, 0xffffffff,
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};
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GLuint tex = 0;
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glGenTextures(1, &tex);
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glBindTexture(GL_TEXTURE_2D, tex);
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glTexStorage2D(GL_TEXTURE_2D, 1, GL_RGBA8, 4, 4);
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glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, 4, 4, GL_RGBA, GL_UNSIGNED_BYTE, checker);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_R, GL_REPEAT);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
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return tex;
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};
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auto TrashTex = [](GLuint tex) {
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const uint32_t empty[4 * 4] = {};
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glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, 4, 4, GL_RGBA, GL_UNSIGNED_BYTE, empty);
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glDeleteTextures(1, &tex);
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};
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auto SetupBuf = []() {
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const float empty = {};
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const Vec4f flags = {1.0f, 2.0f, 4.0f, 8.0f};
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GLuint buf = 0;
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glGenBuffers(1, &buf);
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glBindBuffer(GL_UNIFORM_BUFFER, buf);
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glBufferData(GL_UNIFORM_BUFFER, sizeof(empty), &empty, GL_STATIC_DRAW);
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glBufferData(GL_UNIFORM_BUFFER, sizeof(flags), &flags, GL_STATIC_DRAW);
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glBindBufferBase(GL_UNIFORM_BUFFER, 5, buf);
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return buf;
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};
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auto TrashBuf = [](GLuint buf) {
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const float empty = {};
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glBufferData(GL_UNIFORM_BUFFER, sizeof(empty), &empty, GL_STATIC_DRAW);
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glDeleteBuffers(1, &buf);
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};
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glUseProgram(0);
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glViewport(0, 0, 128, 128);
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GLuint fbo = SetupFBO();
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GLuint vao = SetupVAO();
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GLuint sampler = SetupSampler();
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GLuint fsprog = SetupProgram();
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GLuint pipe = SetupPipe(fsprog);
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GLuint tex = SetupTex();
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GLuint buf = SetupBuf();
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while(Running())
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{
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float col[] = {0.4f, 0.5f, 0.6f, 1.0f};
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glClearNamedFramebufferfv(0, GL_COLOR, 0, col);
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// render with last frame's resources
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float col1[] = {0.5f, 0.1f, 0.1f, 1.0f};
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glClearBufferfv(GL_COLOR, 0, col1);
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glDrawElements(GL_TRIANGLES, 3, GL_UNSIGNED_SHORT, NULL);
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glBlitNamedFramebuffer(fbo, 0, 0, 0, 128, 128, 0, 0, 128, 128, GL_COLOR_BUFFER_BIT, GL_NEAREST);
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// trash last frame's resources
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TrashFBO(fbo);
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TrashVAO(vao);
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TrashSampler(sampler);
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TrashProgram(fsprog);
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TrashPipe(pipe);
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TrashTex(tex);
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TrashBuf(buf);
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// create resources mid-frame and use then trash them
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fbo = SetupFBO();
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vao = SetupVAO();
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sampler = SetupSampler();
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fsprog = SetupProgram();
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pipe = SetupPipe(fsprog);
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tex = SetupTex();
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buf = SetupBuf();
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float col2[] = {0.1f, 0.1f, 0.5f, 1.0f};
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glClearBufferfv(GL_COLOR, 0, col2);
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glDrawElements(GL_TRIANGLES, 3, GL_UNSIGNED_SHORT, NULL);
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glBlitNamedFramebuffer(fbo, 0, 0, 0, 128, 128, 128, 0, 256, 128, GL_COLOR_BUFFER_BIT,
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GL_NEAREST);
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TrashFBO(fbo);
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TrashVAO(vao);
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TrashSampler(sampler);
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TrashProgram(fsprog);
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TrashPipe(pipe);
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TrashTex(tex);
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TrashBuf(buf);
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// set up resources for next frame
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fbo = SetupFBO();
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vao = SetupVAO();
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sampler = SetupSampler();
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fsprog = SetupProgram();
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pipe = SetupPipe(fsprog);
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tex = SetupTex();
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buf = SetupBuf();
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Present();
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}
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// destroy resources
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TrashFBO(fbo);
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TrashVAO(vao);
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TrashSampler(sampler);
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TrashProgram(fsprog);
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TrashPipe(pipe);
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TrashBuf(buf);
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return 0;
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}
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};
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REGISTER_TEST(GL_Resource_Lifetimes); |