Add controller input and a laser-pointer-driven menu quad

- xr_input.c/h: an OpenXR action set (aim pose, trigger/select click, a menu-toggle button) plus ray/quad hit-testing, and a visible laser-pointer line drawn from the controller toward the hit point. - xr_menu.c/h + MenuOverlay.java: a second composition-layer quad, toggled by a controller button, showing an off-screen, never-attached Android View tree (one "Keyboard" button so far) driven by synthetic touch events computed from the laser ray's hit UV. - Migrate gl4es from a prebuilt binary baked into the Docker build-image to a vendored source snapshot (android/gl4es-src/) compiled from source at APK build time via CMake add_subdirectory(), patched through a new android/gl4es-patches/ (mirrors the existing engine-patches/ pattern). This was needed to track down and fix a bug hit while building the menu: gl4es's fixed-pipeline emulation (fpe.c) was unconditionally substituting its own shader onto the menu's draw call (fpe_ReleventState() always sets alphafunc to a nonzero sentinel, so its fpe_IsEmpty() check could never see the state as empty), making the menu quad show the game's own rendering instead of its own content. Fixed by routing the menu's blit through a real glBlitFramebuffer() call instead of a shader-based draw, which gl4es's fpe.c has nothing to intercept - documented in README.md's new "Debugging notes" section. - Renumber android/engine-patches/ to close the gap left by removing an unrelated diagnostic-only patch, and strip investigation-journal comments and dead diagnostic code (temporary tracing, env-var probes) left over from finding the bug above. - Restructure README.md into numbered sections, document every engine/gl4es patch, add Android Studio dev/testing-cycle instructions, and generalize Quest-specific wording to any OpenXR headset. Update NOTICE.txt to match (gl4es is now vendored/patched source, not a prebuilt binary; add the OpenXR-SDK loader).
2026-08-02 06:27:49 +02:00
parent 2300d081c3
commit d2dc58391b
310 changed files with 141458 additions and 226 deletions
@@ -0,0 +1,129 @@
+#include "pointsprite.h"
+
+#include "../glx/hardext.h"
+#include "debug.h"
+#include "fpe.h"
+#include "gl4es.h"
+#include "glstate.h"
+#include "loader.h"
+
+void APIENTRY_GL4ES gl4es_glPointParameteri(GLenum pname, GLint param)
+{
+    gl4es_glPointParameterf(pname, param);
+}
+AliasExport(void,glPointParameteri,,(GLenum pname, GLint param));
+
+void APIENTRY_GL4ES gl4es_glPointParameteriv(GLenum pname, const GLint * params)
+{
+    GLfloat tmp[3];
+    int v=(pname==GL_POINT_DISTANCE_ATTENUATION)?3:1;
+    for (int i=0; i<v; i++) tmp[i] = params[i];
+    gl4es_glPointParameterfv(pname, tmp);
+}
+AliasExport(void,glPointParameteriv,,(GLenum pname, const GLint * params));
+
+void APIENTRY_GL4ES gl4es_glPointParameterf(GLenum pname, GLfloat param) {
+    PUSH_IF_COMPILING(glPointParameterf);
+    gl4es_glPointParameterfv(pname, &param);
+}
+AliasExport(void,glPointParameterf,,(GLenum pname, GLfloat param));
+AliasExport(void,glPointParameterf,ARB,(GLenum pname, GLfloat param));
+AliasExport(void,glPointParameterf,EXT,(GLenum pname, GLfloat param));
+
+void APIENTRY_GL4ES gl4es_glPointParameterfv(GLenum pname, const GLfloat * params)
+{
+    if (glstate->list.active)
+        if (glstate->list.compiling) {
+            if (pname == GL_POINT_DISTANCE_ATTENUATION) {
+                NewStage(glstate->list.active, STAGE_POINTPARAM);
+                rlPointParamOp(glstate->list.active, 1, params);
+                return;
+            } else {
+                gl4es_glPointParameterf(pname, params[0]);
+                return;
+            }
+        } else gl4es_flush();
+
+    switch(pname) {
+        case GL_POINT_SIZE_MIN:
+            if(*params<0.0f) {
+                errorShim(GL_INVALID_VALUE);
+                return;
+            }
+            if(glstate->pointsprite.sizeMin == *params) {
+                noerrorShim();
+                return;
+            }
+            glstate->pointsprite.sizeMin = *params;
+            break;
+        case GL_POINT_SIZE_MAX:
+            if(*params<0.0f) {
+                errorShim(GL_INVALID_VALUE);
+                return;
+            }
+            if(glstate->pointsprite.sizeMax == *params) {
+                noerrorShim();
+                return;
+            }
+            glstate->pointsprite.sizeMax = *params;
+            break;
+        case GL_POINT_FADE_THRESHOLD_SIZE:
+            if(*params<0.0f) {
+                errorShim(GL_INVALID_VALUE);
+                return;
+            }
+            if(glstate->pointsprite.fadeThresholdSize == *params) {
+                noerrorShim();
+                return;
+            }
+            glstate->pointsprite.fadeThresholdSize = *params;
+            break;
+        case GL_POINT_DISTANCE_ATTENUATION:
+            if(*params<0.0f) {
+                errorShim(GL_INVALID_VALUE);
+                return;
+            }
+            if(memcmp(glstate->pointsprite.distance, params, 3*sizeof(GLfloat))==0) {
+                noerrorShim();
+                return;
+            }
+            memcpy(glstate->pointsprite.distance, params, 3*sizeof(GLfloat));
+            break;
+        case GL_POINT_SPRITE_COORD_ORIGIN:
+            if(*params!=GL_UPPER_LEFT && *params!=GL_LOWER_LEFT) {
+                errorShim(GL_INVALID_VALUE);
+                return;
+            }
+            if(glstate->pointsprite.coordOrigin == *params) {
+                noerrorShim();
+                return;
+            }
+            if(glstate->fpe_state) {
+                if(*params==GL_LOWER_LEFT)
+                    glstate->fpe_state->pointsprite_upper = 0;
+                else
+                    glstate->fpe_state->pointsprite_upper = 1;
+            }
+            glstate->pointsprite.coordOrigin = *params;
+            break;
+    }
+
+    LOAD_GLES_FPE(glPointParameterfv);
+    errorGL();
+    gles_glPointParameterfv(pname, params);
+}
+AliasExport(void,glPointParameterfv,,(GLenum pname, const GLfloat * params));
+AliasExport(void,glPointParameterfv,ARB,(GLenum pname, const GLfloat * params));
+AliasExport(void,glPointParameterfv,EXT,(GLenum pname, const GLfloat * params));
+
+void APIENTRY_GL4ES gl4es_glPointSize(GLfloat size) {
+    if(size<=0.0f) {
+        errorShim(GL_INVALID_VALUE);
+        return;
+    }
+    glstate->pointsprite.size = size;
+    errorGL();
+    LOAD_GLES_FPE(glPointSize);
+    gles_glPointSize(size);
+}
+AliasExport(void,glPointSize,,(GLfloat size));