From 6967a31450441fc5605c05db6f65505dace4b263 Mon Sep 17 00:00:00 2001
From: Vaxry <43317083+vaxerski@users.noreply.github.com>
Date: Sat, 8 Jun 2024 10:07:59 +0200
Subject: wayland/core: move to new impl (#6268)

* wayland/core/dmabuf: move to new impl

it's the final countdown
---
 src/render/Texture.cpp | 106 ++++++++++++++++++++++++++++++++++++++++++++++---
 1 file changed, 101 insertions(+), 5 deletions(-)

(limited to 'src/render/Texture.cpp')

diff --git a/src/render/Texture.cpp b/src/render/Texture.cpp
index 1820d0fb..aef8e4ac 100644
--- a/src/render/Texture.cpp
+++ b/src/render/Texture.cpp
@@ -1,16 +1,54 @@
 #include "Texture.hpp"
+#include "Renderer.hpp"
+#include "../Compositor.hpp"
+#include "../protocols/types/Buffer.hpp"
+#include "../helpers/Format.hpp"
 
 CTexture::CTexture() {
     // naffin'
 }
 
+CTexture::~CTexture() {
+    if (m_bNonOwning)
+        return;
+
+    g_pHyprRenderer->makeEGLCurrent();
+    destroyTexture();
+}
+
+CTexture::CTexture(uint32_t drmFormat, uint8_t* pixels, uint32_t stride, const Vector2D& size_) {
+    g_pHyprRenderer->makeEGLCurrent();
+
+    const auto format = FormatUtils::getPixelFormatFromDRM(drmFormat);
+    ASSERT(format);
+
+    m_iType = format->withAlpha ? TEXTURE_RGBA : TEXTURE_RGBX;
+    m_vSize = size_;
+    allocate();
+
+    GLCALL(glBindTexture(GL_TEXTURE_2D, m_iTexID));
+    GLCALL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE));
+    GLCALL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE));
+#ifndef GLES2
+    if (format->flipRB) {
+        GLCALL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_SWIZZLE_R, GL_BLUE));
+        GLCALL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_SWIZZLE_B, GL_RED));
+    }
+#endif
+    GLCALL(glPixelStorei(GL_UNPACK_ROW_LENGTH_EXT, stride / format->bytesPerBlock));
+    GLCALL(glTexImage2D(GL_TEXTURE_2D, 0, format->glInternalFormat ? format->glInternalFormat : format->glFormat, size_.x, size_.y, 0, format->glFormat, format->glType, pixels));
+    GLCALL(glPixelStorei(GL_UNPACK_ROW_LENGTH_EXT, 0));
+    GLCALL(glBindTexture(GL_TEXTURE_2D, 0));
+}
+
 CTexture::CTexture(wlr_texture* tex) {
     RASSERT(wlr_texture_is_gles2(tex), "wlr_texture provided to CTexture that isn't GLES2!");
     wlr_gles2_texture_attribs attrs;
     wlr_gles2_texture_get_attribs(tex, &attrs);
 
-    m_iTarget = attrs.target;
-    m_iTexID  = attrs.tex;
+    m_iTarget    = attrs.target;
+    m_iTexID     = attrs.tex;
+    m_bNonOwning = true;
 
     if (m_iTarget == GL_TEXTURE_2D)
         m_iType = attrs.has_alpha ? TEXTURE_RGBA : TEXTURE_RGBX;
@@ -20,14 +58,72 @@ CTexture::CTexture(wlr_texture* tex) {
     m_vSize = Vector2D(tex->width, tex->height);
 }
 
+CTexture::CTexture(const SDMABUFAttrs& attrs, void* image) {
+    if (!g_pHyprOpenGL->m_sProc.glEGLImageTargetTexture2DOES) {
+        Debug::log(ERR, "Cannot create a dmabuf texture: no glEGLImageTargetTexture2DOES");
+        return;
+    }
+
+    m_iTarget = GL_TEXTURE_2D;
+    m_iType   = TEXTURE_RGBA;
+    m_vSize   = attrs.size;
+    m_iType   = FormatUtils::isFormatOpaque(attrs.format) ? TEXTURE_RGBX : TEXTURE_RGBA;
+    allocate();
+    m_pEglImage = image;
+
+    GLCALL(glBindTexture(GL_TEXTURE_2D, m_iTexID));
+    GLCALL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE));
+    GLCALL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE));
+    GLCALL(g_pHyprOpenGL->m_sProc.glEGLImageTargetTexture2DOES(m_iTarget, image));
+    GLCALL(glBindTexture(GL_TEXTURE_2D, 0));
+}
+
+void CTexture::update(uint32_t drmFormat, uint8_t* pixels, uint32_t stride, const CRegion& damage) {
+    g_pHyprRenderer->makeEGLCurrent();
+
+    const auto format = FormatUtils::getPixelFormatFromDRM(drmFormat);
+    ASSERT(format);
+
+    glBindTexture(GL_TEXTURE_2D, m_iTexID);
+
+    auto rects = damage.copy().intersect(CBox{{}, m_vSize}).getRects();
+
+#ifndef GLES2
+    if (format->flipRB) {
+        GLCALL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_SWIZZLE_R, GL_BLUE));
+        GLCALL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_SWIZZLE_B, GL_RED));
+    }
+#endif
+
+    for (auto& rect : rects) {
+        GLCALL(glPixelStorei(GL_UNPACK_ROW_LENGTH_EXT, stride / format->bytesPerBlock));
+        GLCALL(glPixelStorei(GL_UNPACK_SKIP_PIXELS_EXT, rect.x1));
+        GLCALL(glPixelStorei(GL_UNPACK_SKIP_ROWS_EXT, rect.y1));
+
+        int width  = rect.x2 - rect.x1;
+        int height = rect.y2 - rect.y1;
+        GLCALL(glTexSubImage2D(GL_TEXTURE_2D, 0, rect.x1, rect.y1, width, height, format->glFormat, format->glType, pixels));
+    }
+
+    GLCALL(glPixelStorei(GL_UNPACK_ROW_LENGTH_EXT, 0));
+    GLCALL(glPixelStorei(GL_UNPACK_SKIP_PIXELS_EXT, 0));
+    GLCALL(glPixelStorei(GL_UNPACK_SKIP_ROWS_EXT, 0));
+
+    glBindTexture(GL_TEXTURE_2D, 0);
+}
+
 void CTexture::destroyTexture() {
     if (m_iTexID) {
-        glDeleteTextures(1, &m_iTexID);
+        GLCALL(glDeleteTextures(1, &m_iTexID));
         m_iTexID = 0;
     }
+
+    if (m_pEglImage)
+        g_pHyprOpenGL->m_sProc.eglDestroyImageKHR(wlr_egl_get_display(g_pCompositor->m_sWLREGL), m_pEglImage);
+    m_pEglImage = nullptr;
 }
 
 void CTexture::allocate() {
     if (!m_iTexID)
-        glGenTextures(1, &m_iTexID);
-}
\ No newline at end of file
+        GLCALL(glGenTextures(1, &m_iTexID));
+}
-- 
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