mirror of
https://github.com/hyprwm/Hyprland
synced 2024-11-05 17:25:58 +01:00
4b4971c06f
* framebuffer: avoid gluint overflow GLuint was being initialized to -1 and rolling over to unsigned int max, its defined behaviour but very unnecessery. add a bool and use it for checking if allocated or not. * opengl: avoid gluint rollover -1 rolls over to unsigned int max, use 0xFF instead. * core: big uint64_t to int type conversion there were a few uint64_t to int implicit conversions overflowing int and causing UB, make all monitor/workspaces/windows use the new typedefs. also fix the various related 64 to 32 implicit conversions going around found with -Wshorten-64-to-32
106 lines
No EOL
3.5 KiB
C++
106 lines
No EOL
3.5 KiB
C++
#include "Framebuffer.hpp"
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#include "OpenGL.hpp"
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CFramebuffer::CFramebuffer() {
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m_cTex = makeShared<CTexture>();
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}
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bool CFramebuffer::alloc(int w, int h, uint32_t drmFormat) {
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bool firstAlloc = false;
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RASSERT((w > 1 && h > 1), "cannot alloc a FB with negative / zero size! (attempted {}x{})", w, h);
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uint32_t glFormat = FormatUtils::drmFormatToGL(drmFormat);
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uint32_t glType = FormatUtils::glFormatToType(glFormat);
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if (!m_iFbAllocated) {
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firstAlloc = true;
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glGenFramebuffers(1, &m_iFb);
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m_iFbAllocated = true;
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}
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if (m_cTex->m_iTexID == 0) {
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firstAlloc = true;
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m_cTex->allocate();
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glBindTexture(GL_TEXTURE_2D, m_cTex->m_iTexID);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
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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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}
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if (firstAlloc || m_vSize != Vector2D(w, h)) {
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glBindTexture(GL_TEXTURE_2D, m_cTex->m_iTexID);
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glTexImage2D(GL_TEXTURE_2D, 0, glFormat, w, h, 0, GL_RGBA, glType, 0);
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glBindFramebuffer(GL_FRAMEBUFFER, m_iFb);
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glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, m_cTex->m_iTexID, 0);
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// TODO: Allow this with gles2
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#ifndef GLES2
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if (m_pStencilTex) {
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glBindTexture(GL_TEXTURE_2D, m_pStencilTex->m_iTexID);
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glTexImage2D(GL_TEXTURE_2D, 0, GL_DEPTH24_STENCIL8, w, h, 0, GL_DEPTH_STENCIL, GL_UNSIGNED_INT_24_8, 0);
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glBindFramebuffer(GL_FRAMEBUFFER, m_iFb);
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glFramebufferTexture2D(GL_FRAMEBUFFER, GL_STENCIL_ATTACHMENT, GL_TEXTURE_2D, m_pStencilTex->m_iTexID, 0);
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}
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#endif
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auto status = glCheckFramebufferStatus(GL_FRAMEBUFFER);
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RASSERT((status == GL_FRAMEBUFFER_COMPLETE), "Framebuffer incomplete, couldn't create! (FB status: {}, GL Error: 0x{:x})", status, (int)glGetError());
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Debug::log(LOG, "Framebuffer created, status {}", status);
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}
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glBindTexture(GL_TEXTURE_2D, 0);
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glBindFramebuffer(GL_FRAMEBUFFER, g_pHyprOpenGL->m_iCurrentOutputFb);
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m_vSize = Vector2D(w, h);
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return true;
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}
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void CFramebuffer::addStencil() {
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// TODO: Allow this with gles2
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#ifndef GLES2
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glBindTexture(GL_TEXTURE_2D, m_pStencilTex->m_iTexID);
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glTexImage2D(GL_TEXTURE_2D, 0, GL_DEPTH24_STENCIL8, m_vSize.x, m_vSize.y, 0, GL_DEPTH_STENCIL, GL_UNSIGNED_INT_24_8, 0);
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glBindFramebuffer(GL_FRAMEBUFFER, m_iFb);
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glFramebufferTexture2D(GL_FRAMEBUFFER, GL_STENCIL_ATTACHMENT, GL_TEXTURE_2D, m_pStencilTex->m_iTexID, 0);
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auto status = glCheckFramebufferStatus(GL_FRAMEBUFFER);
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RASSERT((status == GL_FRAMEBUFFER_COMPLETE), "Failed adding a stencil to fbo!", status);
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glBindTexture(GL_TEXTURE_2D, 0);
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glBindFramebuffer(GL_FRAMEBUFFER, g_pHyprOpenGL->m_iCurrentOutputFb);
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#endif
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}
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void CFramebuffer::bind() {
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#ifndef GLES2
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glBindFramebuffer(GL_DRAW_FRAMEBUFFER, m_iFb);
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#else
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glBindFramebuffer(GL_FRAMEBUFFER, m_iFb);
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#endif
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glViewport(0, 0, g_pHyprOpenGL->m_RenderData.pMonitor->vecPixelSize.x, g_pHyprOpenGL->m_RenderData.pMonitor->vecPixelSize.y);
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}
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void CFramebuffer::release() {
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if (m_iFbAllocated)
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glDeleteFramebuffers(1, &m_iFb);
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m_cTex->destroyTexture();
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m_iFbAllocated = false;
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m_vSize = Vector2D();
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}
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CFramebuffer::~CFramebuffer() {
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release();
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}
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bool CFramebuffer::isAllocated() {
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return m_iFbAllocated;
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} |