#include <string.h>
-#include <iostream>
+
#include <algorithm>
+#include <iostream>
#include "image.hpp"
#include "json.hpp"
#include "glproc.hpp"
#include "glsize.hpp"
#include "glstate.hpp"
+#include "glstate_internal.hpp"
#ifdef __APPLE__
extern "C" {
#endif
-typedef int CGSConnectionID;
-typedef int CGSWindowID;
-typedef int CGSSurfaceID;
-
-CGLError CGLGetSurface(CGLContextObj, CGSConnectionID*, CGSWindowID*, CGSSurfaceID*);
OSStatus CGSGetSurfaceBounds(CGSConnectionID, CGWindowID, CGSSurfaceID, CGRect *);
#ifdef __cplusplus
#endif /* __APPLE__ */
-namespace glstate {
-
-
-static void
-dumpShader(JSONWriter &json, GLuint shader)
-{
- if (!shader) {
- return;
- }
-
- GLint shader_type = 0;
- glGetShaderiv(shader, GL_SHADER_TYPE, &shader_type);
- if (!shader_type) {
- return;
- }
-
- GLint source_length = 0;
- glGetShaderiv(shader, GL_SHADER_SOURCE_LENGTH, &source_length);
- if (!source_length) {
- return;
- }
-
- GLchar *source = new GLchar[source_length];
- GLsizei length = 0;
- source[0] = 0;
- glGetShaderSource(shader, source_length, &length, source);
-
- json.beginMember(enumToString(shader_type));
- json.writeString(source);
- json.endMember();
-
- delete [] source;
-}
-
+/* Change thi to one to force interpreting depth buffers as RGBA, which enables
+ * visualizing full dynamic range, until we can transmit HDR images to the GUI */
+#define DEPTH_AS_RGBA 0
-static void
-dumpShaderObj(JSONWriter &json, GLhandleARB shaderObj)
-{
- if (!shaderObj) {
- return;
- }
- GLint shader_type = 0;
- glGetObjectParameterivARB(shaderObj, GL_OBJECT_TYPE_ARB, &shader_type);
- if (!shader_type) {
- return;
- }
-
- GLint source_length = 0;
- glGetObjectParameterivARB(shaderObj, GL_OBJECT_SHADER_SOURCE_LENGTH_ARB, &source_length);
- if (!source_length) {
- return;
- }
-
- GLcharARB *source = new GLcharARB[source_length];
- GLsizei length = 0;
- source[0] = 0;
- glGetShaderSource(shaderObj, source_length, &length, source);
-
- json.beginMember(enumToString(shader_type));
- json.writeString(source);
- json.endMember();
-
- delete [] source;
-}
+namespace glstate {
-static inline void
-dumpCurrentProgram(JSONWriter &json)
-{
- GLint program = 0;
- glGetIntegerv(GL_CURRENT_PROGRAM, &program);
- if (!program) {
- return;
+Context::Context(void) {
+ memset(this, 0, sizeof *this);
+
+ const char *version = (const char *)glGetString(GL_VERSION);
+ if (version) {
+ if (version[0] == 'O' &&
+ version[1] == 'p' &&
+ version[2] == 'e' &&
+ version[3] == 'n' &&
+ version[4] == 'G' &&
+ version[5] == 'L' &&
+ version[6] == ' ' &&
+ version[7] == 'E' &&
+ version[8] == 'S' &&
+ version[9] == ' ') {
+ ES = true;
+ }
}
- GLint attached_shaders = 0;
- glGetProgramiv(program, GL_ATTACHED_SHADERS, &attached_shaders);
- if (!attached_shaders) {
- return;
- }
+ ARB_draw_buffers = !ES;
- GLuint *shaders = new GLuint[attached_shaders];
- GLsizei count = 0;
- glGetAttachedShaders(program, attached_shaders, &count, shaders);
- for (GLsizei i = 0; i < count; ++ i) {
- dumpShader(json, shaders[i]);
- }
- delete [] shaders;
+ // TODO: Check extensions we use below
}
-
-static inline void
-dumpCurrentProgramObj(JSONWriter &json)
-{
- GLhandleARB programObj = glGetHandleARB(GL_PROGRAM_OBJECT_ARB);
- if (!programObj) {
- return;
- }
-
- GLint attached_shaders = 0;
- glGetProgramivARB(programObj, GL_OBJECT_ATTACHED_OBJECTS_ARB, &attached_shaders);
- if (!attached_shaders) {
- return;
- }
-
- GLhandleARB *shaderObjs = new GLhandleARB[attached_shaders];
- GLsizei count = 0;
- glGetAttachedObjectsARB(programObj, attached_shaders, &count, shaderObjs);
- for (GLsizei i = 0; i < count; ++ i) {
- dumpShaderObj(json, shaderObjs[i]);
+void
+Context::resetPixelPackState(void) {
+ if (!ES) {
+ glPushClientAttrib(GL_CLIENT_PIXEL_STORE_BIT);
+ glBindBuffer(GL_PIXEL_PACK_BUFFER, 0);
+ glPixelStorei(GL_PACK_SWAP_BYTES, GL_FALSE);
+ glPixelStorei(GL_PACK_LSB_FIRST, GL_FALSE);
+ glPixelStorei(GL_PACK_ROW_LENGTH, 0);
+ glPixelStorei(GL_PACK_IMAGE_HEIGHT, 0);
+ glPixelStorei(GL_PACK_SKIP_ROWS, 0);
+ glPixelStorei(GL_PACK_SKIP_PIXELS, 0);
+ glPixelStorei(GL_PACK_SKIP_IMAGES, 0);
+ } else {
+ packAlignment = 4;
+ glGetIntegerv(GL_PACK_ALIGNMENT, &packAlignment);
}
- delete [] shaderObjs;
+ glPixelStorei(GL_PACK_ALIGNMENT, 1);
}
-
-static inline void
-dumpArbProgram(JSONWriter &json, GLenum target)
-{
- if (!glIsEnabled(target)) {
- return;
- }
-
- GLint program_length = 0;
- glGetProgramivARB(target, GL_PROGRAM_LENGTH_ARB, &program_length);
- if (!program_length) {
- return;
+void
+Context::restorePixelPackState(void) {
+ if (!ES) {
+ glPopClientAttrib();
+ } else {
+ glPixelStorei(GL_PACK_ALIGNMENT, packAlignment);
}
-
- GLchar *source = new GLchar[program_length + 1];
- source[0] = 0;
- glGetProgramStringARB(target, GL_PROGRAM_STRING_ARB, source);
- source[program_length] = 0;
-
- json.beginMember(enumToString(target));
- json.writeString(source);
- json.endMember();
-
- delete [] source;
-}
-
-
-static inline void
-dumpShaders(JSONWriter &json)
-{
- json.beginMember("shaders");
- json.beginObject();
- dumpCurrentProgram(json);
- dumpArbProgram(json, GL_FRAGMENT_PROGRAM_ARB);
- dumpArbProgram(json, GL_VERTEX_PROGRAM_ARB);
- json.endObject();
- json.endMember(); //shaders
}
static inline void
-dumpTextureImage(JSONWriter &json, GLenum target, GLint level)
+dumpTextureImage(JSONWriter &json, Context &context, GLenum target, GLint level)
{
GLint width, height = 1, depth = 1;
+ GLint format;
+
+ glGetTexLevelParameteriv(target, level, GL_TEXTURE_INTERNAL_FORMAT, &format);
width = 0;
glGetTexLevelParameteriv(target, level, GL_TEXTURE_WIDTH, &width);
GLint active_texture = GL_TEXTURE0;
glGetIntegerv(GL_ACTIVE_TEXTURE, &active_texture);
- snprintf(label, sizeof label, "%s, %s, level = %i", enumToString(active_texture), enumToString(target), level);
+ snprintf(label, sizeof label, "%s, %s, level = %d",
+ enumToString(active_texture), enumToString(target), level);
json.beginMember(label);
json.writeNumberMember("__height__", height);
json.writeNumberMember("__depth__", depth);
+ json.writeStringMember("__format__", enumToString(format));
+
// Hardcoded for now, but we could chose types more adequate to the
// texture internal format
json.writeStringMember("__type__", "uint8");
GLubyte *pixels = new GLubyte[depth*width*height*4];
+ context.resetPixelPackState();
+
glGetTexImage(target, level, GL_RGBA, GL_UNSIGNED_BYTE, pixels);
+ context.restorePixelPackState();
+
json.beginMember("__data__");
char *pngBuffer;
int pngBufferSize;
- Image::writePixelsToBuffer(pixels, width, height, 4, false, &pngBuffer, &pngBufferSize);
+ image::writePixelsToBuffer(pixels, width, height, 4, true, &pngBuffer, &pngBufferSize);
json.writeBase64(pngBuffer, pngBufferSize);
free(pngBuffer);
json.endMember(); // __data__
static inline void
-dumpTexture(JSONWriter &json, GLenum target, GLenum binding)
+dumpTexture(JSONWriter &json, Context &context, GLenum target, GLenum binding)
{
GLint texture_binding = 0;
glGetIntegerv(binding, &texture_binding);
if (target == GL_TEXTURE_CUBE_MAP) {
for (int face = 0; face < 6; ++face) {
- dumpTextureImage(json, GL_TEXTURE_CUBE_MAP_POSITIVE_X + face, level);
+ dumpTextureImage(json, context, GL_TEXTURE_CUBE_MAP_POSITIVE_X + face, level);
}
} else {
- dumpTextureImage(json, target, level);
+ dumpTextureImage(json, context, target, level);
}
++level;
static inline void
-dumpTextures(JSONWriter &json)
+dumpTextures(JSONWriter &json, Context &context)
{
json.beginMember("textures");
json.beginObject();
for (GLint unit = 0; unit < max_units; ++unit) {
GLenum texture = GL_TEXTURE0 + unit;
glActiveTexture(texture);
- dumpTexture(json, GL_TEXTURE_1D, GL_TEXTURE_BINDING_1D);
- dumpTexture(json, GL_TEXTURE_2D, GL_TEXTURE_BINDING_2D);
- dumpTexture(json, GL_TEXTURE_3D, GL_TEXTURE_BINDING_3D);
- dumpTexture(json, GL_TEXTURE_RECTANGLE, GL_TEXTURE_BINDING_RECTANGLE);
- dumpTexture(json, GL_TEXTURE_CUBE_MAP, GL_TEXTURE_BINDING_CUBE_MAP);
+ dumpTexture(json, context, GL_TEXTURE_1D, GL_TEXTURE_BINDING_1D);
+ dumpTexture(json, context, GL_TEXTURE_2D, GL_TEXTURE_BINDING_2D);
+ dumpTexture(json, context, GL_TEXTURE_3D, GL_TEXTURE_BINDING_3D);
+ dumpTexture(json, context, GL_TEXTURE_RECTANGLE, GL_TEXTURE_BINDING_RECTANGLE);
+ dumpTexture(json, context, GL_TEXTURE_CUBE_MAP, GL_TEXTURE_BINDING_CUBE_MAP);
}
glActiveTexture(active_texture);
json.endObject();
static bool
getDrawableBounds(GLint *width, GLint *height) {
-#if defined(_WIN32)
+#if defined(TRACE_EGL)
+
+ EGLContext currentContext = eglGetCurrentContext();
+ if (currentContext == EGL_NO_CONTEXT) {
+ return false;
+ }
+
+ EGLSurface currentSurface = eglGetCurrentSurface(EGL_DRAW);
+ if (currentSurface == EGL_NO_SURFACE) {
+ 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;
+ }
+
+ return true;
+
+#elif defined(_WIN32)
HDC hDC = wglGetCurrentDC();
if (!hDC) {
*width = rect.right - rect.left;
*height = rect.bottom - rect.top;
+ return true;
#elif defined(__APPLE__)
*width = rect.size.width;
*height = rect.size.height;
+ return true;
-#else
+#elif defined(HAVE_X11)
Display *display;
Drawable drawable;
*width = w;
*height = h;
+ return true;
+
+#else
+
+ return false;
#endif
+}
- return true;
+
+static const GLenum texture_bindings[][2] = {
+ {GL_TEXTURE_1D, GL_TEXTURE_BINDING_1D},
+ {GL_TEXTURE_2D, GL_TEXTURE_BINDING_2D},
+ {GL_TEXTURE_3D, GL_TEXTURE_BINDING_3D},
+ {GL_TEXTURE_RECTANGLE, GL_TEXTURE_BINDING_RECTANGLE},
+ {GL_TEXTURE_CUBE_MAP, GL_TEXTURE_BINDING_CUBE_MAP}
+};
+
+
+static bool
+bindTexture(GLint texture, GLenum &target, GLint &bound_texture)
+{
+
+ for (unsigned i = 0; i < sizeof(texture_bindings)/sizeof(texture_bindings[0]); ++i) {
+ target = texture_bindings[i][0];
+
+ GLenum binding = texture_bindings[i][1];
+
+ while (glGetError() != GL_NO_ERROR)
+ ;
+
+ glGetIntegerv(binding, &bound_texture);
+ glBindTexture(target, texture);
+
+ if (glGetError() == GL_NO_ERROR) {
+ return true;
+ }
+
+ glBindTexture(target, bound_texture);
+ }
+
+ target = GL_NONE;
+
+ return false;
}
-Image::Image *
-getDrawBufferImage(GLenum format) {
- GLint width, height;
+static bool
+getTextureLevelSize(GLint texture, GLint level, GLint *width, GLint *height)
+{
+ *width = 0;
+ *height = 0;
- if (format != GL_RGBA) {
- // FIXME: this function can only handle 4-channel images
- return NULL;
+ GLenum target;
+ GLint bound_texture = 0;
+ if (!bindTexture(texture, target, bound_texture)) {
+ return false;
}
- if (!getDrawableBounds(&width, &height)) {
+ glGetTexLevelParameteriv(target, level, GL_TEXTURE_WIDTH, width);
+ glGetTexLevelParameteriv(target, level, GL_TEXTURE_HEIGHT, height);
+
+ glBindTexture(target, bound_texture);
+
+ return *width > 0 && *height > 0;
+}
+
+
+static GLenum
+getTextureLevelFormat(GLint texture, GLint level)
+{
+ GLenum target;
+ GLint bound_texture = 0;
+ if (!bindTexture(texture, target, bound_texture)) {
+ return GL_NONE;
+ }
+
+ GLint format = GL_NONE;
+ glGetTexLevelParameteriv(target, level, GL_TEXTURE_INTERNAL_FORMAT, &format);
+
+ glBindTexture(target, bound_texture);
+
+ return format;
+}
+
+
+
+static bool
+getRenderbufferSize(GLint renderbuffer, GLint *width, GLint *height)
+{
+ GLint bound_renderbuffer = 0;
+ glGetIntegerv(GL_RENDERBUFFER_BINDING, &bound_renderbuffer);
+ glBindRenderbuffer(GL_RENDERBUFFER, renderbuffer);
+
+ *width = 0;
+ *height = 0;
+ glGetRenderbufferParameteriv(GL_RENDERBUFFER, GL_RENDERBUFFER_WIDTH, width);
+ glGetRenderbufferParameteriv(GL_RENDERBUFFER, GL_RENDERBUFFER_HEIGHT, height);
+
+ glBindRenderbuffer(GL_RENDERBUFFER, bound_renderbuffer);
+
+ return *width > 0 && *height > 0;
+}
+
+
+static GLenum
+getRenderbufferFormat(GLint renderbuffer)
+{
+ GLint bound_renderbuffer = 0;
+ glGetIntegerv(GL_RENDERBUFFER_BINDING, &bound_renderbuffer);
+ glBindRenderbuffer(GL_RENDERBUFFER, renderbuffer);
+
+ GLint format = GL_NONE;
+ glGetRenderbufferParameteriv(GL_RENDERBUFFER, GL_RENDERBUFFER_INTERNAL_FORMAT, &format);
+
+ glBindRenderbuffer(GL_RENDERBUFFER, bound_renderbuffer);
+
+ return format;
+}
+
+
+static bool
+getFramebufferAttachmentSize(GLenum target, GLenum attachment, GLint *width, GLint *height)
+{
+ GLint object_type = GL_NONE;
+ glGetFramebufferAttachmentParameteriv(target, attachment,
+ GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE,
+ &object_type);
+ if (object_type == GL_NONE) {
+ return false;
+ }
+
+ GLint object_name = 0;
+ glGetFramebufferAttachmentParameteriv(target, attachment,
+ GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME,
+ &object_name);
+ if (object_name == 0) {
+ return false;
+ }
+
+ if (object_type == GL_RENDERBUFFER) {
+ return getRenderbufferSize(object_name, width, height);
+ } else if (object_type == GL_TEXTURE) {
+ GLint texture_level = 0;
+ glGetFramebufferAttachmentParameteriv(target, attachment,
+ GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_LEVEL,
+ &texture_level);
+ return getTextureLevelSize(object_name, texture_level, width, height);
+ } else {
+ std::cerr << "warning: unexpected GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE = " << object_type << "\n";
+ return false;
+ }
+}
+
+
+
+static GLint
+getFramebufferAttachmentFormat(GLenum target, GLenum attachment)
+{
+ GLint object_type = GL_NONE;
+ glGetFramebufferAttachmentParameteriv(target, attachment,
+ GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE,
+ &object_type);
+ if (object_type == GL_NONE) {
+ return GL_NONE;
+ }
+
+ GLint object_name = 0;
+ glGetFramebufferAttachmentParameteriv(target, attachment,
+ GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME,
+ &object_name);
+ if (object_name == 0) {
+ return GL_NONE;
+ }
+
+ if (object_type == GL_RENDERBUFFER) {
+ return getRenderbufferFormat(object_name);
+ } else if (object_type == GL_TEXTURE) {
+ GLint texture_level = 0;
+ glGetFramebufferAttachmentParameteriv(target, attachment,
+ GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_LEVEL,
+ &texture_level);
+ return getTextureLevelFormat(object_name, texture_level);
+ } else {
+ std::cerr << "warning: unexpected GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE = " << object_type << "\n";
+ return GL_NONE;
+ }
+}
+
+
+
+image::Image *
+getDrawBufferImage() {
+ GLenum format = GL_RGB;
+ GLint channels = __gl_format_channels(format);
+ if (channels > 4) {
return NULL;
}
- Image::Image *image = new Image::Image(width, height, true);
+ Context context;
+
+ GLenum framebuffer_binding;
+ GLenum framebuffer_target;
+ if (context.ES) {
+ framebuffer_binding = GL_FRAMEBUFFER_BINDING;
+ framebuffer_target = GL_FRAMEBUFFER;
+ } else {
+ framebuffer_binding = GL_DRAW_FRAMEBUFFER_BINDING;
+ framebuffer_target = GL_DRAW_FRAMEBUFFER;
+ }
+
+ GLint draw_framebuffer = 0;
+ glGetIntegerv(framebuffer_binding, &draw_framebuffer);
+
+ GLint draw_buffer = GL_NONE;
+ GLint width, height;
+ if (draw_framebuffer) {
+ if (context.ARB_draw_buffers) {
+ glGetIntegerv(GL_DRAW_BUFFER0, &draw_buffer);
+ if (draw_buffer == GL_NONE) {
+ return NULL;
+ }
+ }
+
+ if (!getFramebufferAttachmentSize(framebuffer_target, draw_buffer, &width, &height)) {
+ return NULL;
+ }
+ } else {
+ if (!context.ES) {
+ glGetIntegerv(GL_DRAW_BUFFER, &draw_buffer);
+ if (draw_buffer == GL_NONE) {
+ return NULL;
+ }
+ }
+
+ if (!getDrawableBounds(&width, &height)) {
+ return NULL;
+ }
+ }
+
+ GLenum type = GL_UNSIGNED_BYTE;
+
+#if DEPTH_AS_RGBA
+ if (format == GL_DEPTH_COMPONENT) {
+ type = GL_UNSIGNED_INT;
+ channels = 4;
+ }
+#endif
+
+ image::Image *image = new image::Image(width, height, channels, true);
if (!image) {
return NULL;
}
- GLint drawbuffer = GL_NONE;
- GLint readbuffer = GL_NONE;
- glGetIntegerv(GL_DRAW_BUFFER, &drawbuffer);
- glGetIntegerv(GL_READ_BUFFER, &readbuffer);
- glReadBuffer(drawbuffer);
+ while (glGetError() != GL_NO_ERROR) {}
- glPushClientAttrib(GL_CLIENT_PIXEL_STORE_BIT);
- glPixelStorei(GL_PACK_SWAP_BYTES, GL_FALSE);
- glPixelStorei(GL_PACK_LSB_FIRST, GL_FALSE);
- glPixelStorei(GL_PACK_ROW_LENGTH, 0);
- glPixelStorei(GL_PACK_IMAGE_HEIGHT, 0);
- glPixelStorei(GL_PACK_SKIP_ROWS, 0);
- glPixelStorei(GL_PACK_SKIP_PIXELS, 0);
- glPixelStorei(GL_PACK_SKIP_IMAGES, 0);
- glPixelStorei(GL_PACK_ALIGNMENT, 1);
+ GLint read_framebuffer = 0;
+ GLint read_buffer = GL_NONE;
+ if (!context.ES) {
+ glGetIntegerv(GL_READ_FRAMEBUFFER_BINDING, &read_framebuffer);
+ glBindFramebuffer(GL_READ_FRAMEBUFFER, draw_framebuffer);
- glReadPixels(0, 0, width, height, GL_RGBA, GL_UNSIGNED_BYTE, image->pixels);
+ glGetIntegerv(GL_READ_BUFFER, &read_buffer);
+ glReadBuffer(draw_buffer);
+ }
+
+ // TODO: reset imaging state too
+ context.resetPixelPackState();
+
+ glReadPixels(0, 0, width, height, format, type, image->pixels);
- glPopClientAttrib();
+ context.restorePixelPackState();
- glReadBuffer(readbuffer);
+ if (!context.ES) {
+ glReadBuffer(read_buffer);
+ glBindFramebuffer(GL_READ_FRAMEBUFFER, read_framebuffer);
+ }
+ GLenum error = glGetError();
+ if (error != GL_NO_ERROR) {
+ do {
+ std::cerr << "warning: " << enumToString(error) << " while getting snapshot\n";
+ error = glGetError();
+ } while(error != GL_NO_ERROR);
+ delete image;
+ return NULL;
+ }
+
return image;
}
+/**
+ * Dump the image of the currently bound read buffer.
+ */
static inline void
-dumpDrawBufferImage(JSONWriter &json, GLenum format)
+dumpReadBufferImage(JSONWriter &json, GLint width, GLint height, GLenum format,
+ GLint internalFormat = GL_NONE)
{
GLint channels = __gl_format_channels(format);
- GLint width, height;
+ Context context;
- if (!getDrawableBounds(&width, &height)) {
- json.writeNull();
- } else {
- json.beginObject();
+ json.beginObject();
- // Tell the GUI this is no ordinary object, but an image
- json.writeStringMember("__class__", "image");
+ // Tell the GUI this is no ordinary object, but an image
+ json.writeStringMember("__class__", "image");
- json.writeNumberMember("__width__", width);
- json.writeNumberMember("__height__", height);
- json.writeNumberMember("__depth__", 1);
+ json.writeNumberMember("__width__", width);
+ json.writeNumberMember("__height__", height);
+ json.writeNumberMember("__depth__", 1);
- // Hardcoded for now, but we could chose types more adequate to the
- // texture internal format
- json.writeStringMember("__type__", "uint8");
- json.writeBoolMember("__normalized__", true);
- json.writeNumberMember("__channels__", channels);
+ json.writeStringMember("__format__", enumToString(internalFormat));
- GLubyte *pixels = new GLubyte[width*height*channels];
+ // Hardcoded for now, but we could chose types more adequate to the
+ // texture internal format
+ json.writeStringMember("__type__", "uint8");
+ json.writeBoolMember("__normalized__", true);
+ json.writeNumberMember("__channels__", channels);
- GLint drawbuffer = GL_NONE;
- GLint readbuffer = GL_NONE;
- glGetIntegerv(GL_DRAW_BUFFER, &drawbuffer);
- glGetIntegerv(GL_READ_BUFFER, &readbuffer);
- glReadBuffer(drawbuffer);
+ GLenum type = GL_UNSIGNED_BYTE;
- glPushClientAttrib(GL_CLIENT_PIXEL_STORE_BIT);
- glPixelStorei(GL_PACK_SWAP_BYTES, GL_FALSE);
- glPixelStorei(GL_PACK_LSB_FIRST, GL_FALSE);
- glPixelStorei(GL_PACK_ROW_LENGTH, 0);
- glPixelStorei(GL_PACK_IMAGE_HEIGHT, 0);
- glPixelStorei(GL_PACK_SKIP_ROWS, 0);
- glPixelStorei(GL_PACK_SKIP_PIXELS, 0);
- glPixelStorei(GL_PACK_SKIP_IMAGES, 0);
- glPixelStorei(GL_PACK_ALIGNMENT, 1);
+#if DEPTH_AS_RGBA
+ if (format == GL_DEPTH_COMPONENT) {
+ type = GL_UNSIGNED_INT;
+ channels = 4;
+ }
+#endif
- glReadPixels(0, 0, width, height, format, GL_UNSIGNED_BYTE, pixels);
+ GLubyte *pixels = new GLubyte[width*height*channels];
- glPopClientAttrib();
- glReadBuffer(readbuffer);
+ // TODO: reset imaging state too
+ context.resetPixelPackState();
- json.beginMember("__data__");
- char *pngBuffer;
- int pngBufferSize;
- Image::writePixelsToBuffer(pixels, width, height, channels, false, &pngBuffer, &pngBufferSize);
- //std::cerr <<" Before = "<<(width * height * channels * sizeof *pixels)
- // <<", after = "<<pngBufferSize << ", ratio = " << double(width * height * channels * sizeof *pixels)/pngBufferSize;
- json.writeBase64(pngBuffer, pngBufferSize);
- free(pngBuffer);
- json.endMember(); // __data__
+ glReadPixels(0, 0, width, height, format, type, pixels);
- delete [] pixels;
- json.endObject();
- }
+ context.restorePixelPackState();
+
+ json.beginMember("__data__");
+ char *pngBuffer;
+ int pngBufferSize;
+ image::writePixelsToBuffer(pixels, width, height, channels, true, &pngBuffer, &pngBufferSize);
+ //std::cerr <<" Before = "<<(width * height * channels * sizeof *pixels)
+ // <<", after = "<<pngBufferSize << ", ratio = " << double(width * height * channels * sizeof *pixels)/pngBufferSize;
+ json.writeBase64(pngBuffer, pngBufferSize);
+ free(pngBuffer);
+ json.endMember(); // __data__
+
+ delete [] pixels;
+ json.endObject();
}
}
+/**
+ * Dump images of current draw drawable/window.
+ */
static void
-dumpDrawBuffers(JSONWriter &json, GLboolean dumpDepth, GLboolean dumpStencil)
+dumpDrawableImages(JSONWriter &json, Context &context)
{
- json.beginMember("GL_RGBA");
- dumpDrawBufferImage(json, GL_RGBA);
- json.endMember();
+ GLint width, height;
- if (dumpDepth) {
- json.beginMember("GL_DEPTH_COMPONENT");
- dumpDrawBufferImage(json, GL_DEPTH_COMPONENT);
- json.endMember();
+ if (!getDrawableBounds(&width, &height)) {
+ return;
}
- if (dumpStencil) {
- json.beginMember("GL_STENCIL_INDEX");
- dumpDrawBufferImage(json, GL_STENCIL_INDEX);
+ GLint draw_buffer = GL_NONE;
+ if (context.ES) {
+ draw_buffer = GL_BACK;
+ } else {
+ glGetIntegerv(GL_DRAW_BUFFER, &draw_buffer);
+ glReadBuffer(draw_buffer);
+ }
+
+ if (draw_buffer != GL_NONE) {
+ GLint read_buffer = GL_NONE;
+ if (!context.ES) {
+ glGetIntegerv(GL_READ_BUFFER, &read_buffer);
+ }
+
+ GLint alpha_bits = 0;
+#if 0
+ // XXX: Ignore alpha until we are able to match the traced visual
+ glGetIntegerv(GL_ALPHA_BITS, &alpha_bits);
+#endif
+ GLenum format = alpha_bits ? GL_RGBA : GL_RGB;
+ json.beginMember(enumToString(draw_buffer));
+ dumpReadBufferImage(json, width, height, format);
json.endMember();
+
+ if (!context.ES) {
+ glReadBuffer(read_buffer);
+ }
+ }
+
+ if (!context.ES) {
+ GLint depth_bits = 0;
+ glGetIntegerv(GL_DEPTH_BITS, &depth_bits);
+ if (depth_bits) {
+ json.beginMember("GL_DEPTH_COMPONENT");
+ dumpReadBufferImage(json, width, height, GL_DEPTH_COMPONENT);
+ json.endMember();
+ }
+
+ GLint stencil_bits = 0;
+ glGetIntegerv(GL_STENCIL_BITS, &stencil_bits);
+ if (stencil_bits) {
+ json.beginMember("GL_STENCIL_INDEX");
+ dumpReadBufferImage(json, width, height, GL_STENCIL_INDEX);
+ json.endMember();
+ }
}
}
+/**
+ * Dump the specified framebuffer attachment.
+ *
+ * In the case of a color attachment, it assumes it is already bound for read.
+ */
static void
-dumpFramebuffer(JSONWriter &json)
+dumpFramebufferAttachment(JSONWriter &json, GLenum target, GLenum attachment, GLenum format)
+{
+ GLint width = 0, height = 0;
+ if (!getFramebufferAttachmentSize(target, attachment, &width, &height)) {
+ return;
+ }
+
+ GLint internalFormat = getFramebufferAttachmentFormat(target, attachment);
+
+ json.beginMember(enumToString(attachment));
+ dumpReadBufferImage(json, width, height, format, internalFormat);
+ json.endMember();
+}
+
+
+static void
+dumpFramebufferAttachments(JSONWriter &json, Context &context, GLenum target)
+{
+ GLint read_framebuffer = 0;
+ glGetIntegerv(GL_READ_FRAMEBUFFER_BINDING, &read_framebuffer);
+
+ GLint read_buffer = GL_NONE;
+ glGetIntegerv(GL_READ_BUFFER, &read_buffer);
+
+ GLint max_draw_buffers = 1;
+ glGetIntegerv(GL_MAX_DRAW_BUFFERS, &max_draw_buffers);
+ GLint max_color_attachments = 0;
+ glGetIntegerv(GL_MAX_COLOR_ATTACHMENTS, &max_color_attachments);
+
+ for (GLint i = 0; i < max_draw_buffers; ++i) {
+ GLint draw_buffer = GL_NONE;
+ glGetIntegerv(GL_DRAW_BUFFER0 + i, &draw_buffer);
+ if (draw_buffer != GL_NONE) {
+ glReadBuffer(draw_buffer);
+ GLint attachment;
+ if (draw_buffer >= GL_COLOR_ATTACHMENT0 && draw_buffer < GL_COLOR_ATTACHMENT0 + max_color_attachments) {
+ attachment = draw_buffer;
+ } else {
+ std::cerr << "warning: unexpected GL_DRAW_BUFFER" << i << " = " << draw_buffer << "\n";
+ attachment = GL_COLOR_ATTACHMENT0;
+ }
+ GLint alpha_size = 0;
+ glGetFramebufferAttachmentParameteriv(target, attachment,
+ GL_FRAMEBUFFER_ATTACHMENT_ALPHA_SIZE,
+ &alpha_size);
+ GLenum format = alpha_size ? GL_RGBA : GL_RGB;
+ dumpFramebufferAttachment(json, target, attachment, format);
+ }
+ }
+
+ glReadBuffer(read_buffer);
+
+ if (!context.ES) {
+ dumpFramebufferAttachment(json, target, GL_DEPTH_ATTACHMENT, GL_DEPTH_COMPONENT);
+ dumpFramebufferAttachment(json, target, GL_STENCIL_ATTACHMENT, GL_STENCIL_INDEX);
+ }
+
+ glBindFramebuffer(GL_READ_FRAMEBUFFER, read_framebuffer);
+}
+
+
+static void
+dumpFramebuffer(JSONWriter &json, Context &context)
{
json.beginMember("framebuffer");
json.beginObject();
glGetIntegerv(GL_DRAW_FRAMEBUFFER_BINDING, &boundDrawFbo);
glGetIntegerv(GL_READ_FRAMEBUFFER_BINDING, &boundReadFbo);
if (!boundDrawFbo) {
- GLint depth_bits = 0;
- glGetIntegerv(GL_DEPTH_BITS, &depth_bits);
- GLint stencil_bits = 0;
- glGetIntegerv(GL_STENCIL_BITS, &stencil_bits);
- dumpDrawBuffers(json, depth_bits, stencil_bits);
+ dumpDrawableImages(json, context);
+ } else if (context.ES) {
+ dumpFramebufferAttachments(json, context, GL_FRAMEBUFFER);
} else {
- GLint colorRb, stencilRb, depthRb;
- GLint boundRb;
+ GLint colorRb = 0, stencilRb = 0, depthRb = 0;
+ GLint draw_buffer0 = GL_NONE;
+ glGetIntegerv(GL_DRAW_BUFFER0, &draw_buffer0);
+ bool multisample = false;
+
+ GLint boundRb = 0;
glGetIntegerv(GL_RENDERBUFFER_BINDING, &boundRb);
- GLint drawbuffer = GL_NONE;
- glGetIntegerv(GL_DRAW_BUFFER, &drawbuffer);
-
- glGetFramebufferAttachmentParameteriv(GL_FRAMEBUFFER,
- drawbuffer,
- GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME,
- &colorRb);
- glGetFramebufferAttachmentParameteriv(GL_FRAMEBUFFER,
- GL_DEPTH_ATTACHMENT,
- GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME,
- &depthRb);
- glGetFramebufferAttachmentParameteriv(GL_FRAMEBUFFER,
- GL_STENCIL_ATTACHMENT,
- GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME,
- &stencilRb);
-
- GLint colorSamples, depthSamples, stencilSamples;
+
+ GLint object_type;
+ glGetFramebufferAttachmentParameteriv(GL_DRAW_FRAMEBUFFER, draw_buffer0, GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE, &object_type);
+ if (object_type == GL_RENDERBUFFER) {
+ glGetFramebufferAttachmentParameteriv(GL_DRAW_FRAMEBUFFER, draw_buffer0, GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME, &colorRb);
+ glBindRenderbuffer(GL_RENDERBUFFER, colorRb);
+ GLint samples = 0;
+ glGetRenderbufferParameteriv(GL_RENDERBUFFER, GL_RENDERBUFFER_SAMPLES, &samples);
+ if (samples) {
+ multisample = true;
+ }
+ }
+
+ glGetFramebufferAttachmentParameteriv(GL_DRAW_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE, &object_type);
+ if (object_type == GL_RENDERBUFFER) {
+ glGetFramebufferAttachmentParameteriv(GL_DRAW_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME, &depthRb);
+ glBindRenderbuffer(GL_RENDERBUFFER, depthRb);
+ GLint samples = 0;
+ glGetRenderbufferParameteriv(GL_RENDERBUFFER, GL_RENDERBUFFER_SAMPLES, &samples);
+ if (samples) {
+ multisample = true;
+ }
+ }
+
+ glGetFramebufferAttachmentParameteriv(GL_DRAW_FRAMEBUFFER, GL_STENCIL_ATTACHMENT, GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE, &object_type);
+ if (object_type == GL_RENDERBUFFER) {
+ glGetFramebufferAttachmentParameteriv(GL_DRAW_FRAMEBUFFER, GL_STENCIL_ATTACHMENT, GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME, &stencilRb);
+ glBindRenderbuffer(GL_RENDERBUFFER, stencilRb);
+ GLint samples = 0;
+ glGetRenderbufferParameteriv(GL_RENDERBUFFER, GL_RENDERBUFFER_SAMPLES, &samples);
+ if (samples) {
+ multisample = true;
+ }
+ }
+
+ glBindRenderbuffer(GL_RENDERBUFFER, boundRb);
+
GLuint rbs[3];
GLint numRbs = 0;
GLuint fboCopy = 0;
- glBindRenderbuffer(GL_RENDERBUFFER, colorRb);
- glGetRenderbufferParameteriv(GL_RENDERBUFFER,
- GL_RENDERBUFFER_SAMPLES, &colorSamples);
- glBindRenderbuffer(GL_RENDERBUFFER, depthRb);
- glGetRenderbufferParameteriv(GL_RENDERBUFFER,
- GL_RENDERBUFFER_SAMPLES, &depthSamples);
- glBindRenderbuffer(GL_RENDERBUFFER, stencilRb);
- glGetRenderbufferParameteriv(GL_RENDERBUFFER,
- GL_RENDERBUFFER_SAMPLES, &stencilSamples);
- glBindRenderbuffer(GL_RENDERBUFFER, boundRb);
- if (colorSamples || depthSamples || stencilSamples) {
- //glReadPixels doesnt support multisampled buffers so we need
+ if (multisample) {
+ // glReadPixels doesnt support multisampled buffers so we need
// to blit the fbo to a temporary one
- fboCopy = downsampledFramebuffer(boundDrawFbo, drawbuffer,
+ fboCopy = downsampledFramebuffer(boundDrawFbo, draw_buffer0,
colorRb, depthRb, stencilRb,
rbs, &numRbs);
}
- glDrawBuffer(drawbuffer);
- glReadBuffer(drawbuffer);
- dumpDrawBuffers(json, depthRb, stencilRb);
+ dumpFramebufferAttachments(json, context, GL_DRAW_FRAMEBUFFER);
- if (fboCopy) {
- glBindFramebuffer(GL_FRAMEBUFFER, boundDrawFbo);
- glBindFramebuffer(GL_READ_FRAMEBUFFER, boundReadFbo);
- glBindFramebuffer(GL_DRAW_FRAMEBUFFER, boundDrawFbo);
+ if (multisample) {
glBindRenderbuffer(GL_RENDERBUFFER_BINDING, boundRb);
glDeleteRenderbuffers(numRbs, rbs);
glDeleteFramebuffers(1, &fboCopy);
}
+
+ glBindFramebuffer(GL_READ_FRAMEBUFFER, boundReadFbo);
+ glBindFramebuffer(GL_DRAW_FRAMEBUFFER, boundDrawFbo);
}
json.endObject();
}
+static const GLenum bindings[] = {
+ GL_DRAW_BUFFER,
+ GL_READ_BUFFER,
+ GL_PIXEL_PACK_BUFFER_BINDING,
+ GL_PIXEL_UNPACK_BUFFER_BINDING,
+ GL_TEXTURE_BINDING_1D,
+ GL_TEXTURE_BINDING_2D,
+ GL_TEXTURE_BINDING_3D,
+ GL_TEXTURE_BINDING_RECTANGLE,
+ GL_TEXTURE_BINDING_CUBE_MAP,
+ GL_DRAW_FRAMEBUFFER_BINDING,
+ GL_READ_FRAMEBUFFER_BINDING,
+ GL_RENDERBUFFER_BINDING,
+ GL_DRAW_BUFFER0,
+ GL_DRAW_BUFFER1,
+ GL_DRAW_BUFFER2,
+ GL_DRAW_BUFFER3,
+ GL_DRAW_BUFFER4,
+ GL_DRAW_BUFFER5,
+ GL_DRAW_BUFFER6,
+ GL_DRAW_BUFFER7,
+};
+
+
+#define NUM_BINDINGS sizeof(bindings)/sizeof(bindings[0])
+
+
void dumpCurrentContext(std::ostream &os)
{
JSONWriter json(os);
- dumpParameters(json);
- dumpShaders(json);
- dumpTextures(json);
- dumpFramebuffer(json);
+
+#ifndef NDEBUG
+ GLint old_bindings[NUM_BINDINGS];
+ for (unsigned i = 0; i < NUM_BINDINGS; ++i) {
+ old_bindings[i] = 0;
+ glGetIntegerv(bindings[i], &old_bindings[i]);
+ }
+#endif
+
+ Context context;
+
+ dumpParameters(json, context);
+ dumpShadersUniforms(json);
+ dumpTextures(json, context);
+ dumpFramebuffer(json, context);
+
+#ifndef NDEBUG
+ for (unsigned i = 0; i < NUM_BINDINGS; ++i) {
+ GLint new_binding = 0;
+ glGetIntegerv(bindings[i], &new_binding);
+ if (new_binding != old_bindings[i]) {
+ std::cerr << "warning: " << enumToString(bindings[i]) << " was clobbered\n";
+ }
+ }
+#endif
+
}
projects / apitrace / blobdiff