NCS_Spectrum_GLava/imageOperations.patch at main · Roonil/NCS_Spectrum_GLava · GitHub

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diff --git a/glava/render.c b/glava/render.c
index 220bd1f..e808ce7 100644
--- a/glava/render.c
+++ b/glava/render.c
@@ -654,7 +654,7 @@ static struct gl_bind_src bind_sources[] = {
     #define SRC_SCREEN 4
     { .name = "screen", .type = BIND_IVEC2, .src_type = SRC_SCREEN },
     #define SRC_TIME 5
-    { .name = "time", .type = BIND_FLOAT, .src_type = SRC_SCREEN }
+    { .name = "time", .type = BIND_FLOAT, .src_type = SRC_TIME }
 };

 #define window(t, sz) (0.53836 - (0.46164 * cos(TWOPI * (double) t  / (double) sz)))
@@ -1584,6 +1584,31 @@ struct glava_renderer* rd_new(const char**    paths,        const char* entry,
                                     ++u;
                                 }
                                 glBindFragDataLocation(id, 1, "fragment");
+                                GLuint imageTexture;
+                                int w, h;
+                                gl->wcb->get_fbsize(gl->w, &w, &h);
+                                glGenTextures(1, &imageTexture);
+                                glBindTexture(GL_TEXTURE_2D, imageTexture);
+                                glTexStorage2D(GL_TEXTURE_2D, 1, GL_RGBA32F, w, h);
+                                glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+                                glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+                                GLuint imageUnit = 4;
+                                glBindImageTexture(imageUnit, imageTexture, 0, GL_FALSE, 0, GL_READ_WRITE, GL_RGBA32F);
+                                GLuint program = id;
+                                GLint imageLocation = glGetUniformLocation(program, "imageTexture");
+                                glProgramUniform1i(program, imageLocation, imageUnit);
+                                glBindTextureUnit(0, imageTexture);
+
+                                GLuint atomicImageTexture;
+                                glGenTextures(1, &atomicImageTexture);
+                                glBindTexture(GL_TEXTURE_2D, atomicImageTexture);
+                                glTexStorage2D(GL_TEXTURE_2D, 1, GL_R32UI, w, h);
+                                imageUnit = 5;
+                                glBindImageTexture(imageUnit, atomicImageTexture, 0, GL_FALSE, 0, GL_READ_WRITE, GL_R32UI);
+                                imageLocation = glGetUniformLocation(program, "atomicImageTexture");
+                                glProgramUniform1i(program, imageLocation, imageUnit);
+                                glBindTextureUnit(0, atomicImageTexture);
+
                                 glUseProgram(0);
                             }