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Update StarRenderer_opengl.cpp

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Bottinator22 2024-08-21 19:21:02 -07:00 committed by GitHub
parent 483908abef
commit 50c987b1c4
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1 changed files with 70 additions and 22 deletions
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74
source/application/StarRenderer_opengl.cpp
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@ -153,12 +153,32 @@ OpenGlRenderer::GlFrameBuffer::GlFrameBuffer(Json const& fbConfig) : config(fbCo
GLenum target = multisample ? GL_TEXTURE_2D_MULTISAMPLE : GL_TEXTURE_2D;
glBindTexture(target, texture->glTextureId());
Vec2U size = jsonToVec2U(config.getArray("size", { 256, 256 }));
sizeDiv = config.getUInt("sizeDiv",1);
Vec2U size = jsonToVec2U(config.getArray("size", { 256, 256 }))/sizeDiv;
if (multisample)
glTexImage2DMultisample(GL_TEXTURE_2D_MULTISAMPLE, multisample, GL_RGBA8, size[0], size[1], GL_TRUE);
else
else {
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, size[0], size[1], 0, GL_RGB, GL_UNSIGNED_BYTE, NULL);
}
auto addressing = TextureAddressingNames.getLeft(config.getString("textureAddressing", "clamp"));
auto filtering = TextureFilteringNames.getLeft(config.getString("textureFiltering", "nearest"));
if (addressing == TextureAddressing::Clamp) {
glTexParameteri(target, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri(target, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
} else {
glTexParameteri(target, GL_TEXTURE_WRAP_S, GL_REPEAT);
glTexParameteri(target, GL_TEXTURE_WRAP_T, GL_REPEAT);
}
if (!multisample) {
if (filtering == TextureFiltering::Nearest) {
glTexParameterf(target, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexParameterf(target, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
} else {
glTexParameterf(target, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameterf(target, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
}
}
glGenFramebuffers(1, &id);
if (!id)
@ -184,6 +204,7 @@ void OpenGlRenderer::loadConfig(Json const& config) {
for (auto& pair : config.getObject("frameBuffers", {})) {
Json config = pair.second;
config = config.set("multisample", m_multiSampling);
Logger::info("Creating framebuffer {}", pair.first);
m_frameBuffers[pair.first] = make_ref<GlFrameBuffer>(config);
}
@ -257,8 +278,9 @@ void OpenGlRenderer::loadEffectConfig(String const& name, Json const& effectConf
auto& effect = m_effects.emplace(name, Effect()).first->second;
effect.program = m_program;
effect.config = effectConfig;
effect.includeVBTextures = effectConfig.getBool("includeVBTextures",true);
m_currentEffect = &effect;
setupGlUniforms(effect);
setupGlUniforms(effect,m_screenSize);
for (auto const& p : effectConfig.getObject("effectParameters", {})) {
EffectParameter effectParameter;
@ -307,7 +329,7 @@ void OpenGlRenderer::loadEffectConfig(String const& name, Json const& effectConf
// Assign each texture parameter a texture unit starting with MultiTextureCount, the first
// few texture units are used by the primary textures being drawn. Currently,
// maximum texture units are not checked.
unsigned parameterTextureUnit = MultiTextureCount;
unsigned parameterTextureUnit = effect.includeVBTextures ? MultiTextureCount : 0;
for (auto const& p : effectConfig.getObject("effectTextures", {})) {
EffectTexture effectTexture;
@ -394,19 +416,39 @@ bool OpenGlRenderer::switchEffectConfig(String const& name) {
if (auto blitFrameBufferId = effect.config.optString("blitFrameBuffer"))
blitGlFrameBuffer(getGlFrameBuffer(*blitFrameBufferId));
if (auto frameBufferId = effect.config.optString("frameBuffer"))
switchGlFrameBuffer(getGlFrameBuffer(*frameBufferId));
else {
auto effectScreenSize = m_screenSize;
if (auto frameBufferId = effect.config.optString("frameBuffer")) {
auto buf = getGlFrameBuffer(*frameBufferId);
switchGlFrameBuffer(buf);
effectScreenSize = m_screenSize/(buf->sizeDiv);
} else {
m_currentFrameBuffer.reset();
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0);
}
glUseProgram(m_program = effect.program);
setupGlUniforms(effect);
setupGlUniforms(effect,effectScreenSize);
m_currentEffect = &effect;
setEffectParameter("vertexRounding", m_multiSampling > 0);
if (auto fbts = effect.config.optArray("frameBufferTextures")) {
for (auto const& fbt : *fbts) {
if (auto frameBufferId = fbt.optString("framebuffer")) {
auto textureUniform=fbt.getString("texture");
auto ptr = m_currentEffect->textures.ptr(textureUniform);
if (ptr) {
if (!ptr->textureValue || ptr->textureValue->textureId == 0) {
auto texture = getGlFrameBuffer(*frameBufferId)->texture;
ptr->textureValue = texture;
if (ptr->textureSizeUniform != -1) {
auto textureSize = ptr->textureValue->glTextureSize();
glUniform2f(ptr->textureSizeUniform, textureSize[0], textureSize[1]);
}
}
}
}
}
}
return true;
}
@ -507,10 +549,10 @@ void OpenGlRenderer::setScreenSize(Vec2U screenSize) {
for (auto& frameBuffer : m_frameBuffers) {
if (unsigned multisample = frameBuffer.second->multisample) {
glBindTexture(GL_TEXTURE_2D_MULTISAMPLE, frameBuffer.second->texture->glTextureId());
glTexImage2DMultisample(GL_TEXTURE_2D_MULTISAMPLE, multisample, GL_RGBA8, m_screenSize[0], m_screenSize[1], GL_TRUE);
glTexImage2DMultisample(GL_TEXTURE_2D_MULTISAMPLE, multisample, GL_RGBA8, m_screenSize[0]/frameBuffer.second->sizeDiv, m_screenSize[1]/frameBuffer.second->sizeDiv, GL_TRUE);
} else {
glBindTexture(GL_TEXTURE_2D, frameBuffer.second->texture->glTextureId());
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, m_screenSize[0], m_screenSize[1], 0, GL_RGB, GL_UNSIGNED_BYTE, NULL);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, m_screenSize[0]/frameBuffer.second->sizeDiv, m_screenSize[1]/frameBuffer.second->sizeDiv, 0, GL_RGB, GL_UNSIGNED_BYTE, NULL);
}
}
}
@ -963,11 +1005,13 @@ void OpenGlRenderer::renderGlBuffer(GlRenderBuffer const& renderBuffer, Mat3F co
for (auto const& vb : renderBuffer.vertexBuffers) {
glUniformMatrix3fv(m_vertexTransformUniform, 1, GL_TRUE, transformation.ptr());
if (m_currentEffect->includeVBTextures) {
for (size_t i = 0; i < vb.textures.size(); ++i) {
glUniform2f(m_textureSizeUniforms[i], vb.textures[i].size[0], vb.textures[i].size[1]);
glActiveTexture(GL_TEXTURE0 + i);
glBindTexture(GL_TEXTURE_2D, vb.textures[i].texture);
}
}
for (auto const& p : m_currentEffect->textures) {
if (p.second.textureValue) {
@ -993,7 +1037,7 @@ void OpenGlRenderer::renderGlBuffer(GlRenderBuffer const& renderBuffer, Mat3F co
}
//Assumes the passed effect program is currently in use.
void OpenGlRenderer::setupGlUniforms(Effect& effect) {
void OpenGlRenderer::setupGlUniforms(Effect& effect, Vec2U screenSize) {
m_positionAttribute = effect.getAttribute("vertexPosition");
m_colorAttribute = effect.getAttribute("vertexColor");
m_texCoordAttribute = effect.getAttribute("vertexTextureCoordinate");
@ -1001,17 +1045,21 @@ void OpenGlRenderer::setupGlUniforms(Effect& effect) {
m_textureUniforms.clear();
m_textureSizeUniforms.clear();
if (effect.includeVBTextures) {
for (size_t i = 0; i < MultiTextureCount; ++i) {
m_textureUniforms.append(effect.getUniform(strf("texture{}", i).c_str()));
m_textureSizeUniforms.append(effect.getUniform(strf("textureSize{}", i).c_str()));
}
}
m_screenSizeUniform = effect.getUniform("screenSize");
m_vertexTransformUniform = effect.getUniform("vertexTransform");
if (effect.includeVBTextures) {
for (size_t i = 0; i < MultiTextureCount; ++i)
glUniform1i(m_textureUniforms[i], i);
}
glUniform2f(m_screenSizeUniform, m_screenSize[0], m_screenSize[1]);
glUniform2f(m_screenSizeUniform, screenSize[0], screenSize[1]);
}
RefPtr<OpenGlRenderer::GlFrameBuffer> OpenGlRenderer::getGlFrameBuffer(String const& id) {