#include "glstate_internal.hpp"
+#ifdef __linux__
+#include <dlfcn.h>
+#endif
+
#ifdef __APPLE__
#include <Carbon/Carbon.h>
}
+/**
+ * OpenGL ES does not support glGetTexImage. Obtain the pixels by attaching the
+ * texture to a framebuffer.
+ */
+static inline void
+getTexImageOES(GLenum target, GLint level, ImageDesc &desc, GLubyte *pixels)
+{
+ memset(pixels, 0x80, desc.height * desc.width * 4);
+
+ GLenum texture_binding = GL_NONE;
+ switch (target) {
+ case GL_TEXTURE_2D:
+ texture_binding = GL_TEXTURE_BINDING_2D;
+ break;
+ case GL_TEXTURE_CUBE_MAP_POSITIVE_X:
+ case GL_TEXTURE_CUBE_MAP_NEGATIVE_X:
+ case GL_TEXTURE_CUBE_MAP_POSITIVE_Y:
+ case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y:
+ case GL_TEXTURE_CUBE_MAP_POSITIVE_Z:
+ case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z:
+ texture_binding = GL_TEXTURE_BINDING_CUBE_MAP;
+ break;
+ case GL_TEXTURE_3D_OES:
+ texture_binding = GL_TEXTURE_BINDING_3D_OES;
+ default:
+ return;
+ }
+
+ GLint texture = 0;
+ glGetIntegerv(texture_binding, &texture);
+ if (!texture) {
+ return;
+ }
+
+ GLint prev_fbo = 0;
+ GLuint fbo = 0;
+ glGetIntegerv(GL_FRAMEBUFFER_BINDING, &prev_fbo);
+ glGenFramebuffers(1, &fbo);
+ glBindFramebuffer(GL_FRAMEBUFFER, fbo);
+
+ GLenum status;
+
+ switch (target) {
+ case GL_TEXTURE_2D:
+ case GL_TEXTURE_CUBE_MAP_POSITIVE_X:
+ case GL_TEXTURE_CUBE_MAP_NEGATIVE_X:
+ case GL_TEXTURE_CUBE_MAP_POSITIVE_Y:
+ case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y:
+ case GL_TEXTURE_CUBE_MAP_POSITIVE_Z:
+ case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z:
+ glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, texture, level);
+ status = glCheckFramebufferStatus(GL_FRAMEBUFFER);
+ if (status != GL_FRAMEBUFFER_COMPLETE) {
+ std::cerr << __FUNCTION__ << ": " << enumToString(status) << "\n";
+ }
+ glReadPixels(0, 0, desc.width, desc.height, GL_RGBA, GL_UNSIGNED_BYTE, pixels);
+ break;
+ case GL_TEXTURE_3D_OES:
+ for (int i = 0; i < desc.depth; i++) {
+ glFramebufferTexture3D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_3D, texture, level, i);
+ glReadPixels(0, 0, desc.width, desc.height, GL_RGBA, GL_UNSIGNED_BYTE, pixels + 4 * i * desc.width * desc.height);
+ }
+ break;
+ }
+
+ glBindFramebuffer(GL_FRAMEBUFFER, prev_fbo);
+
+ glDeleteFramebuffers(1, &fbo);
+}
+
+
+static inline GLboolean
+isDepthFormat(GLenum internalFormat)
+{
+ switch (internalFormat) {
+ case GL_DEPTH_COMPONENT:
+ case GL_DEPTH_COMPONENT16:
+ case GL_DEPTH_COMPONENT24:
+ case GL_DEPTH_COMPONENT32:
+ case GL_DEPTH_COMPONENT32F:
+ case GL_DEPTH_COMPONENT32F_NV:
+ case GL_DEPTH_STENCIL:
+ case GL_DEPTH24_STENCIL8:
+ case GL_DEPTH32F_STENCIL8:
+ case GL_DEPTH32F_STENCIL8_NV:
+ return GL_TRUE;
+ }
+ return GL_FALSE;
+}
+
+
static inline void
dumpActiveTextureLevel(JSONWriter &json, Context &context, GLenum target, GLint level)
{
json.beginObject();
+ GLuint channels;
+ GLenum format;
+ if (!context.ES && isDepthFormat(desc.internalFormat)) {
+ format = GL_DEPTH_COMPONENT;
+ channels = 1;
+ } else {
+ format = GL_RGBA;
+ channels = 4;
+ }
+
// Tell the GUI this is no ordinary object, but an image
json.writeStringMember("__class__", "image");
// texture internal format
json.writeStringMember("__type__", "uint8");
json.writeBoolMember("__normalized__", true);
- json.writeNumberMember("__channels__", 4);
+ json.writeNumberMember("__channels__", channels);
- GLubyte *pixels = new GLubyte[desc.depth*desc.width*desc.height*4];
+ GLubyte *pixels = new GLubyte[desc.depth*desc.width*desc.height*channels];
context.resetPixelPackState();
- glGetTexImage(target, level, GL_RGBA, GL_UNSIGNED_BYTE, pixels);
+ if (context.ES) {
+ getTexImageOES(target, level, desc, pixels);
+ } else {
+ glGetTexImage(target, level, format, GL_UNSIGNED_BYTE, pixels);
+ }
context.restorePixelPackState();
json.beginMember("__data__");
char *pngBuffer;
int pngBufferSize;
- image::writePixelsToBuffer(pixels, desc.width, desc.height, 4, true, &pngBuffer, &pngBufferSize);
+ image::writePixelsToBuffer(pixels, desc.width, desc.height, channels, true, &pngBuffer, &pngBufferSize);
json.writeBase64(pngBuffer, pngBufferSize);
free(pngBuffer);
json.endMember(); // __data__
json.beginObject();
GLint active_texture = GL_TEXTURE0;
glGetIntegerv(GL_ACTIVE_TEXTURE, &active_texture);
+
GLint max_texture_coords = 0;
glGetIntegerv(GL_MAX_TEXTURE_COORDS, &max_texture_coords);
GLint max_combined_texture_image_units = 0;
glGetIntegerv(GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS, &max_combined_texture_image_units);
GLint max_units = std::max(max_combined_texture_image_units, max_texture_coords);
+
+ /*
+ * At least the Android software GL implementation doesn't return the
+ * proper value for this, but rather returns 0. The GL(ES) specification
+ * mandates a minimum value of 2, so use this as a fall-back value.
+ */
+ max_units = std::min(max_units, 2);
+
for (GLint unit = 0; unit < max_units; ++unit) {
GLenum texture = GL_TEXTURE0 + unit;
glActiveTexture(texture);
static bool
getDrawableBounds(GLint *width, GLint *height) {
-#if defined(TRACE_EGL)
+#if defined(__linux__)
+ if (dlsym(RTLD_DEFAULT, "eglGetCurrentContext")) {
+ EGLContext currentContext = eglGetCurrentContext();
+ if (currentContext == EGL_NO_CONTEXT) {
+ return false;
+ }
- EGLContext currentContext = eglGetCurrentContext();
- if (currentContext == EGL_NO_CONTEXT) {
- return false;
- }
+ EGLSurface currentSurface = eglGetCurrentSurface(EGL_DRAW);
+ if (currentSurface == EGL_NO_SURFACE) {
+ return false;
+ }
- EGLSurface currentSurface = eglGetCurrentSurface(EGL_DRAW);
- if (currentSurface == EGL_NO_SURFACE) {
- return false;
- }
+ EGLDisplay currentDisplay = eglGetCurrentDisplay();
+ if (currentDisplay == EGL_NO_DISPLAY) {
+ return false;
+ }
- EGLDisplay currentDisplay = eglGetCurrentDisplay();
- if (currentDisplay == EGL_NO_DISPLAY) {
- return false;
- }
+ if (!eglQuerySurface(currentDisplay, currentSurface, EGL_WIDTH, width) ||
+ !eglQuerySurface(currentDisplay, currentSurface, EGL_HEIGHT, height)) {
+ return false;
+ }
- if (!eglQuerySurface(currentDisplay, currentSurface, EGL_WIDTH, width) ||
- !eglQuerySurface(currentDisplay, currentSurface, EGL_HEIGHT, height)) {
- return false;
+ return true;
}
+#endif
- return true;
-
-#elif defined(_WIN32)
+#if defined(_WIN32)
HDC hDC = wglGetCurrentDC();
if (!hDC) {
projects / apitrace / blobdiff