Update widgets module. Raster example initial.
This commit is contained in:
IlyaShurupov
Ilya Shurupov
parent
aa10424fbb
commit
90244934d9
48 changed files with 1169 additions and 530 deletions
117
RasterRender/private/FrameBuffer.cpp
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117
RasterRender/private/FrameBuffer.cpp
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#include "FrameBuffer.hpp"
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#include "GraphicsApi.hpp"
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#include <stdio.h>
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void glerr(GLenum type) { printf("GL ERROR\n"); }
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#define AssertGL(x) \
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{ \
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x; \
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GLenum __gle = glGetError(); \
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if (__gle != GL_NO_ERROR) glerr(__gle); \
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}
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using namespace tp;
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RenderBuffer::RenderBuffer(const Vec2F& size) :
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mSize(size) {
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mDrawBuffers[0] = { GL_COLOR_ATTACHMENT0 };
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// --------- texture ---------
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AssertGL(glGenTextures(1, &mTextureId));
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AssertGL(glBindTexture(GL_TEXTURE_2D, mTextureId));
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// Give an empty image to OpenGL ( the last "0" )
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AssertGL(glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, (GLsizei) size.x, (GLsizei) size.y, 0, GL_RGBA, GL_UNSIGNED_BYTE, 0)
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);
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// Poor filtering. Needed
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AssertGL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR));
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AssertGL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR));
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// --------- depth ---------
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AssertGL(glGenRenderbuffers(1, &mDepthBufferID));
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AssertGL(glBindRenderbuffer(GL_RENDERBUFFER, mDepthBufferID));
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AssertGL(glRenderbufferStorage(GL_RENDERBUFFER, GLW_CONTEXT_DEPTH_COMPONENT, (GLsizei) size.x, (GLsizei) size.y));
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// ------------ framebuffer ------------
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AssertGL(glGenFramebuffers(1, &mFrameBufferID));
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AssertGL(glBindFramebuffer(GL_FRAMEBUFFER, mFrameBufferID));
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AssertGL(glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_RENDERBUFFER, mDepthBufferID));
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// Set "renderedTexture" as our colour attachement #0
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AssertGL(glFramebufferTexture(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, mTextureId, 0));
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// Set the list of draw buffers.
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AssertGL(glDrawBuffers(1, mDrawBuffers)); // "1" is the size of DrawBuffers
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ASSERT(glCheckFramebufferStatus(GL_FRAMEBUFFER) == GL_FRAMEBUFFER_COMPLETE);
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glBindFramebuffer(GL_FRAMEBUFFER, 0);
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}
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RenderBuffer::RenderBuffer(const Vec2F& size, tp::uint1 samples) :
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mSize(size) {
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mDrawBuffers[0] = { GL_COLOR_ATTACHMENT0 };
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// ------- texture ---------
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AssertGL(glGenTextures(1, &mTextureId));
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AssertGL(glBindTexture(GL_TEXTURE_2D_MULTISAMPLE, mTextureId));
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#ifdef ENV_OS_ANDROID
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AssertGL(
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glTexStorage2DMultisample(GL_TEXTURE_2D_MULTISAMPLE, samples, GL_RGBA, (GLsizei) size.x, (GLsizei) size.y, GL_TRUE)
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);
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#else
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AssertGL(
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glTexImage2DMultisample(GL_TEXTURE_2D_MULTISAMPLE, samples, GL_RGBA, (GLsizei) size.x, (GLsizei) size.y, GL_TRUE)
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);
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#endif
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// !?
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// AssertGL(glTexParameteri(GL_TEXTURE_2D_MULTISAMPLE, GL_TEXTURE_MAG_FILTER, GL_LINEAR));
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// AssertGL(glTexParameteri(GL_TEXTURE_2D_MULTISAMPLE, GL_TEXTURE_MIN_FILTER, GL_LINEAR));
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// ------- depth -------
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AssertGL(glGenRenderbuffers(1, &mDepthBufferID));
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AssertGL(glBindRenderbuffer(GL_RENDERBUFFER, mDepthBufferID));
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AssertGL(glRenderbufferStorageMultisample(
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GL_RENDERBUFFER, samples, GLW_CONTEXT_DEPTH_COMPONENT, (GLsizei) size.x, (GLsizei) size.y
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));
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// ------- fbuff -------
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AssertGL(glGenFramebuffers(1, &mFrameBufferID));
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AssertGL(glBindFramebuffer(GL_FRAMEBUFFER, mFrameBufferID));
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AssertGL(glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D_MULTISAMPLE, mTextureId, 0));
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AssertGL(glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_RENDERBUFFER, mDepthBufferID));
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AssertGL(glDrawBuffers(1, mDrawBuffers));
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ASSERT(glCheckFramebufferStatus(GL_FRAMEBUFFER) == GL_FRAMEBUFFER_COMPLETE);
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glBindFramebuffer(GL_FRAMEBUFFER, 0);
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}
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uint4 RenderBuffer::buffId() const { return mFrameBufferID; }
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void RenderBuffer::beginDraw() {
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AssertGL(glBindFramebuffer(GL_FRAMEBUFFER, mFrameBufferID));
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setViewport({ 0.f, 0.f, mSize.x, mSize.y });
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}
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void RenderBuffer::setViewport(const RectF& viewport) {
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AssertGL(glViewport((GLsizei) viewport.x, (GLsizei) viewport.y, (GLsizei) viewport.z, (GLsizei) viewport.w));
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}
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void RenderBuffer::clear() {
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AssertGL(glClearColor(mClearCol.r, mClearCol.g, mClearCol.b, mClearCol.a));
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AssertGL(glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT));
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}
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void RenderBuffer::endDraw() {
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glBindFramebuffer(GL_FRAMEBUFFER, 0);
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glClearColor(0, 0, 0, 0);
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glUseProgram(0);
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}
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RenderBuffer::~RenderBuffer() {
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glDeleteFramebuffers(1, &mFrameBufferID);
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glDeleteTextures(1, &mTextureId);
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glDeleteRenderbuffers(1, &mDepthBufferID);
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}
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uint4 RenderBuffer::texId() const { return mTextureId; }
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const Vec2F& RenderBuffer::getSize() const { return mSize; }
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162
RasterRender/private/Shader.cpp
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162
RasterRender/private/Shader.cpp
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#include "Buffer.hpp"
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#include "LocalConnection.hpp"
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#include "Shader.hpp"
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#include "GraphicsApi.hpp"
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#include <cstdio>
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using namespace tp;
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RenderShader::RenderShader() {
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programm = 0;
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VertexShaderID = 0;
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FragmentShaderID = 0;
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GeometryShaderID = 0;
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}
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void RenderShader::vert_bind_source(const char* vert_src) {
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VertexShaderID = glCreateShader(GL_VERTEX_SHADER);
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compile_shader(vert_src, VertexShaderID);
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}
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void RenderShader::frag_bind_source(const char* frag_src) {
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FragmentShaderID = glCreateShader(GL_FRAGMENT_SHADER);
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compile_shader(frag_src, FragmentShaderID);
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}
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void RenderShader::geom_bind_source(const char* geom_src) {
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GeometryShaderID = glCreateShader(GL_GEOMETRY_SHADER);
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compile_shader(geom_src, GeometryShaderID);
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}
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void RenderShader::compile() {
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GLint Result = GL_FALSE;
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int InfoLogLength;
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programm = glCreateProgram();
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glAttachShader(programm, VertexShaderID);
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if (GeometryShaderID) glAttachShader(programm, GeometryShaderID);
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glAttachShader(programm, FragmentShaderID);
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glLinkProgram(programm);
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// Check the program
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glGetProgramiv(programm, GL_LINK_STATUS, &Result);
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glGetProgramiv(programm, GL_INFO_LOG_LENGTH, &InfoLogLength);
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if (InfoLogLength > 0) {
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Buffer<char> ProgramErrorMessage(InfoLogLength + 1);
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glGetProgramInfoLog(programm, InfoLogLength, NULL, &ProgramErrorMessage[0]);
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printf("%s\n", &ProgramErrorMessage[0]);
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}
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glDetachShader(programm, VertexShaderID);
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glDetachShader(programm, FragmentShaderID);
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if (GeometryShaderID) glDetachShader(programm, GeometryShaderID);
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glDeleteShader(VertexShaderID);
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glDeleteShader(FragmentShaderID);
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if (GeometryShaderID) glDeleteShader(GeometryShaderID);
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}
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bool RenderShader::compile_shader(const char* ShaderCode, uint4 ShaderID) {
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GLint Result = GL_FALSE;
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int InfoLogLength;
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char const* SourcePointer = ShaderCode;
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glShaderSource(ShaderID, 1, &SourcePointer, NULL);
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glCompileShader(ShaderID);
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// Check Shader
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glGetShaderiv(ShaderID, GL_COMPILE_STATUS, &Result);
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glGetShaderiv(ShaderID, GL_INFO_LOG_LENGTH, &InfoLogLength);
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if (InfoLogLength > 0) {
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Buffer<char> VertexShaderErrorMessage(InfoLogLength + 1);
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glGetShaderInfoLog(ShaderID, InfoLogLength, NULL, &VertexShaderErrorMessage[0]);
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printf("%s\n", &VertexShaderErrorMessage[0]);
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}
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return Result;
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}
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void RenderShader::load(const char* pvert, const char* pgeom, const char* pfrag, bool paths) {
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// Create the shaders
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VertexShaderID = glCreateShader(GL_VERTEX_SHADER);
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FragmentShaderID = glCreateShader(GL_FRAGMENT_SHADER);
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if (pgeom) GeometryShaderID = glCreateShader(GL_GEOMETRY_SHADER);
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else GeometryShaderID = 0;
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GLint Result = GL_FALSE;
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int InfoLogLength = 0;
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if (paths) {
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std::string content;
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auto loadFile = [&](const char* path) {
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LocalConnection file;
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if (!file.connect(LocalConnection::Location(path), LocalConnection::Type(true))) {
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content = "";
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return false;
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}
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const auto size = file.size();
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auto tmp = new char[size + 1];
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tmp[size] = 0;
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file.readBytes(tmp, size);
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content = tmp;
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delete[] tmp;
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return true;
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};
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printf("Compiling shader : %s\n", pvert);
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if (loadFile(pvert)) {
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compile_shader(content.c_str(), VertexShaderID);
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}
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if (GeometryShaderID) {
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printf("Compiling shader : %s\n", pgeom);
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if (loadFile(pgeom)) {
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compile_shader(content.c_str(), GeometryShaderID);
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}
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}
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printf("Compiling shader : %s\n", pfrag);
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if (loadFile(pfrag)) {
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compile_shader(content.c_str(), FragmentShaderID);
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}
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}
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else {
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compile_shader(pvert, VertexShaderID);
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if (GeometryShaderID) {
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compile_shader(pgeom, GeometryShaderID);
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}
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compile_shader(pfrag, FragmentShaderID);
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}
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compile();
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}
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RenderShader::RenderShader(const char* vert, const char* geom, const char* frag, bool paths) {
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load(vert, geom, frag, paths);
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}
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void RenderShader::bind() {
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glUseProgram(programm);
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}
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GLuint RenderShader::getu(const char* uid) {
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return glGetUniformLocation(programm, uid);
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}
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void RenderShader::unbind() {
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glUseProgram(0);
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}
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RenderShader::~RenderShader() {
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glDeleteProgram(programm);
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}
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205
RasterRender/private/Texture.cpp
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205
RasterRender/private/Texture.cpp
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#include "Texture.hpp"
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#include "Map.hpp"
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#include "Shader.hpp"
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#include "GraphicsApi.hpp"
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const char* texture_vertex =
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#ifdef ENV_OS_ANDROID
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"#version 300 es\n"
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"precision mediump float;\n"
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#else
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"#version 330 core\n"
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#endif
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"layout(location = 0) in vec3 vPos;\n"
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"out vec2 UV;\n"
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"void main() {\n"
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" gl_Position = vec4(vPos, 1);\n"
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" UV = (vPos.xy + vec2(1, 1)) / 2.0;\n"
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"}\n";
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const char* texture_fragment =
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#ifdef ENV_OS_ANDROID
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"#version 300 es\n"
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"precision mediump float;\n"
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#else
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"#version 330 core\n"
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#endif
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"in vec2 UV;\n"
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"out vec4 color;\n"
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"uniform sampler2D renderedTexture;\n"
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"uniform float time;\n"
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"void main() {\n"
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" vec4 texColor = texture(renderedTexture, UV);\n"
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" if (texColor.a < 0.2)\n"
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" discard;\n"
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" color = texColor;\n"
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"}\n";
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using namespace tp;
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GLuint RenderTexture::getid() { return id; }
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RenderTexture::RenderTexture() {
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glGenTextures(1, &id);
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glBindTexture(GL_TEXTURE_2D, id);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
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glBindTexture(GL_TEXTURE_2D, 0);
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}
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RenderTexture::~RenderTexture() { glDeleteTextures(1, &id); }
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void RenderTexture::update(const Buffer2D<RGBA>& buff) {
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glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, (GLsizei)buff.size().x, (GLsizei)buff.size().y, 0, GL_RGBA, GL_FLOAT, buff.getBuff());
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}
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void RenderTexture::draw(const GLuint& out) {
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draw_texture(out, id);
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}
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struct texture_drawer_data {
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Map<std::string, GLuint> textures;
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GLuint quad_VertexArrayID;
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GLuint quad_vertexbuffer;
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GLuint texID;
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RenderShader shader;
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const GLfloat g_quad_vertex_buffer_data[18] = {
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-1.0f, -1.0f, 0.0f, 1.0f, -1.0f, 0.0f, -1.0f, 1.0f, 0.0f,
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-1.0f, 1.0f, 0.0f, 1.0f, -1.0f, 0.0f, 1.0f, 1.0f, 0.0f,
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};
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texture_drawer_data() : shader(texture_vertex, nullptr, texture_fragment, false) {
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// The fullscreen quad's FBO
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glGenVertexArrays(1, &quad_VertexArrayID);
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glBindVertexArray(quad_VertexArrayID);
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glGenBuffers(1, &quad_vertexbuffer);
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glBindBuffer(GL_ARRAY_BUFFER, quad_vertexbuffer);
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glBufferData(GL_ARRAY_BUFFER, sizeof(g_quad_vertex_buffer_data),
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g_quad_vertex_buffer_data, GL_STATIC_DRAW);
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texID = shader.getu("renderedTexture");
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}
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~texture_drawer_data() {
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glDeleteBuffers(1, &quad_vertexbuffer);
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glDeleteVertexArrays(1, &quad_VertexArrayID);
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for (auto tex : textures) {
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glDeleteTextures(1, &tex->val);
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}
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}
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};
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texture_drawer_data* texdd = NULL;
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void RenderTexture::init() {
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if (!texdd) texdd = new texture_drawer_data();
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}
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void RenderTexture::deinit() {
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if (texdd) delete texdd;
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texdd = NULL;
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}
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void RenderTexture::draw_texture(uint4 out, uint4 in) {
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ASSERT(in);
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// Render to the screen
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glBindFramebuffer(GL_FRAMEBUFFER, out);
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// Use our shader
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texdd->shader.bind();
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// Bind our texture in Texture Unit 0
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glActiveTexture(GL_TEXTURE0);
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glBindTexture(GL_TEXTURE_2D, in);
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// Set our "renderedTexture" sampler to use Texture Unit 0
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glUniform1i(texdd->texID, 0);
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// glUniformMatrix4fv(texdd->rect_mat, 1, GL_FALSE, &tmat[0][0]);
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// 1rst attribute buffer : vertices
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glEnableVertexAttribArray(0);
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glBindBuffer(GL_ARRAY_BUFFER, texdd->quad_vertexbuffer);
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glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 0, (void*)0);
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// Draw the triangles. 2*3 indices starting at 0 -> 2 triangles
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glDrawArrays(GL_TRIANGLES, 0, 6);
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glDisableVertexAttribArray(0);
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texdd->shader.unbind();
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}
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GLuint load_texture(const std::string& name) {
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GLuint tex_2d = 0;
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ASSERT(0 && "incomplete compilation - no SOIL support added");
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if (0) {
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//auto document = lunasvg::Document::loadFromFile("tiger.svg");
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//auto bitmap = document->renderToBitmap();
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}
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else {
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/*
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tex_2d = SOIL_load_OGL_texture(
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name.cstr(), SOIL_LOAD_RGBA, SOIL_CREATE_NEW_ID,
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SOIL_FLAG_MIPMAPS | SOIL_FLAG_INVERT_Y | SOIL_FLAG_NTSC_SAFE_RGB |
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SOIL_FLAG_COMPRESS_TO_DXT);
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if (0 == tex_2d) {
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printf("SOIL loading error: '%s'\n", SOIL_last_result());
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}
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*/
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}
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return tex_2d;
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}
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GLuint RenderTexture::get_tex(const char* TexId) {
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GLuint out = 0;
|
||||
auto idx = texdd->textures.presents(TexId);
|
||||
if (idx) {
|
||||
out = texdd->textures.get(TexId);
|
||||
}
|
||||
else {
|
||||
out = load_texture(TexId);
|
||||
texdd->textures.put(TexId, out);
|
||||
}
|
||||
return out;
|
||||
}
|
||||
|
||||
void RenderTexture::drawCurcle(Vec2F pos, double radius, RGBA col) {
|
||||
#ifndef ENV_OS_ANDROID
|
||||
static alni precision = 40;
|
||||
|
||||
glColor4f(col.r, col.g, col.b, col.a);
|
||||
|
||||
double twicePi = 2.0 * 3.142;
|
||||
|
||||
glBegin(GL_TRIANGLE_FAN); // BEGIN CIRCLE
|
||||
glVertex2f(pos.x, pos.y); // center of circle
|
||||
|
||||
for (alni i = 0; i <= precision; i++) {
|
||||
glVertex2f((GLfloat)(pos.x + (radius * cos(i * twicePi / precision))),
|
||||
(GLfloat)(pos.y + (radius * sin(i * twicePi / precision))));
|
||||
}
|
||||
glEnd(); // END
|
||||
#endif
|
||||
}
|
||||
|
||||
|
||||
Loading…
Add table
Add a link
Reference in a new issue