#include <algorithm>
#include <iostream>
-#include <map>
-#include <sstream>
#include "image.hpp"
#include "json.hpp"
#include "glproc.hpp"
#include "glsize.hpp"
#include "glstate.hpp"
-
-
-#ifdef __APPLE__
-
-#include <Carbon/Carbon.h>
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-OSStatus CGSGetSurfaceBounds(CGSConnectionID, CGWindowID, CGSSurfaceID, CGRect *);
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* __APPLE__ */
+#include "glstate_internal.hpp"
namespace glstate {
-static inline void
-resetPixelPackState(void) {
- 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);
- glBindBuffer(GL_PIXEL_PACK_BUFFER, 0);
-}
-
-
-static inline void
-restorePixelPackState(void) {
- glPopClientAttrib();
-}
-
-
-// Mapping from shader type to shader source, used to accumulated the sources
-// of different shaders with same type.
-typedef std::map<std::string, std::string> ShaderMap;
-
-
-static void
-getShaderSource(ShaderMap &shaderMap, 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);
-
- shaderMap[enumToString(shader_type)] += source;
-
- delete [] source;
-}
-
-
-static void
-getShaderObjSource(ShaderMap &shaderMap, GLhandleARB shaderObj)
-{
- if (!shaderObj) {
- return;
- }
-
- GLint object_type = 0;
- glGetObjectParameterivARB(shaderObj, GL_OBJECT_TYPE_ARB, &object_type);
- if (object_type != GL_SHADER_OBJECT_ARB) {
- return;
- }
-
- GLint shader_type = 0;
- glGetObjectParameterivARB(shaderObj, GL_OBJECT_SUBTYPE_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);
-
- shaderMap[enumToString(shader_type)] += source;
-
- delete [] source;
-}
-
-
-static inline void
-dumpProgram(JSONWriter &json, GLint program)
-{
- GLint attached_shaders = 0;
- glGetProgramiv(program, GL_ATTACHED_SHADERS, &attached_shaders);
- if (!attached_shaders) {
- return;
- }
-
- ShaderMap shaderMap;
-
- GLuint *shaders = new GLuint[attached_shaders];
- GLsizei count = 0;
- glGetAttachedShaders(program, attached_shaders, &count, shaders);
- std::sort(shaders, shaders + count);
- for (GLsizei i = 0; i < count; ++ i) {
- getShaderSource(shaderMap, shaders[i]);
- }
- delete [] shaders;
-
- for (ShaderMap::const_iterator it = shaderMap.begin(); it != shaderMap.end(); ++it) {
- json.beginMember(it->first);
- json.writeString(it->second);
- json.endMember();
- }
-}
-
-
-static inline void
-dumpProgramObj(JSONWriter &json, GLhandleARB programObj)
-{
- GLint attached_shaders = 0;
- glGetObjectParameterivARB(programObj, GL_OBJECT_ATTACHED_OBJECTS_ARB, &attached_shaders);
- if (!attached_shaders) {
- return;
- }
-
- ShaderMap shaderMap;
-
- GLhandleARB *shaderObjs = new GLhandleARB[attached_shaders];
- GLsizei count = 0;
- glGetAttachedObjectsARB(programObj, attached_shaders, &count, shaderObjs);
- std::sort(shaderObjs, shaderObjs + count);
- for (GLsizei i = 0; i < count; ++ i) {
- getShaderObjSource(shaderMap, shaderObjs[i]);
- }
- delete [] shaderObjs;
-
- for (ShaderMap::const_iterator it = shaderMap.begin(); it != shaderMap.end(); ++it) {
- json.beginMember(it->first);
- json.writeString(it->second);
- json.endMember();
- }
-}
-
-
-static void
-dumpUniform(JSONWriter &json, GLint program, GLint size, GLenum type, const GLchar *name) {
-
- GLenum elemType;
- GLint numElems;
- __gl_uniform_size(type, elemType, numElems);
- if (elemType == GL_NONE) {
- return;
- }
-
- GLfloat fvalues[4*4];
- GLdouble dvalues[4*4];
- GLint ivalues[4*4];
- GLuint uivalues[4*4];
-
- GLint i, j;
-
- for (i = 0; i < size; ++i) {
- std::stringstream ss;
- ss << name;
-
- if (size > 1) {
- ss << '[' << i << ']';
- }
-
- std::string elemName = ss.str();
-
- json.beginMember(elemName);
-
- GLint location = glGetUniformLocation(program, elemName.c_str());
-
- if (numElems > 1) {
- json.beginArray();
- }
-
- switch (elemType) {
- case GL_FLOAT:
- glGetUniformfv(program, location, fvalues);
- for (j = 0; j < numElems; ++j) {
- json.writeNumber(fvalues[j]);
- }
- break;
- case GL_DOUBLE:
- glGetUniformdv(program, location, dvalues);
- for (j = 0; j < numElems; ++j) {
- json.writeNumber(dvalues[j]);
- }
- break;
- case GL_INT:
- glGetUniformiv(program, location, ivalues);
- for (j = 0; j < numElems; ++j) {
- json.writeNumber(ivalues[j]);
- }
- break;
- case GL_UNSIGNED_INT:
- glGetUniformuiv(program, location, uivalues);
- for (j = 0; j < numElems; ++j) {
- json.writeNumber(uivalues[j]);
- }
- break;
- case GL_BOOL:
- glGetUniformiv(program, location, ivalues);
- for (j = 0; j < numElems; ++j) {
- json.writeBool(ivalues[j]);
- }
- break;
- default:
- assert(0);
- break;
- }
-
- if (numElems > 1) {
- json.endArray();
- }
-
- json.endMember();
- }
-}
-
-
-static void
-dumpUniformARB(JSONWriter &json, GLhandleARB programObj, GLint size, GLenum type, const GLchar *name) {
-
- GLenum elemType;
- GLint numElems;
- __gl_uniform_size(type, elemType, numElems);
- if (elemType == GL_NONE) {
- return;
- }
-
- GLfloat fvalues[4*4];
- GLint ivalues[4*4];
-
- GLint i, j;
-
- for (i = 0; i < size; ++i) {
- std::stringstream ss;
- ss << name;
-
- if (size > 1) {
- ss << '[' << i << ']';
- }
-
- std::string elemName = ss.str();
-
- json.beginMember(elemName);
-
- GLint location = glGetUniformLocationARB(programObj, elemName.c_str());
-
- if (numElems > 1) {
- json.beginArray();
- }
-
- switch (elemType) {
- case GL_DOUBLE:
- // glGetUniformdvARB does not exists
- case GL_FLOAT:
- glGetUniformfvARB(programObj, location, fvalues);
- for (j = 0; j < numElems; ++j) {
- json.writeNumber(fvalues[j]);
- }
- break;
- case GL_UNSIGNED_INT:
- // glGetUniformuivARB does not exists
- case GL_INT:
- glGetUniformivARB(programObj, location, ivalues);
- for (j = 0; j < numElems; ++j) {
- json.writeNumber(ivalues[j]);
- }
- break;
- case GL_BOOL:
- glGetUniformivARB(programObj, location, ivalues);
- for (j = 0; j < numElems; ++j) {
- json.writeBool(ivalues[j]);
- }
- break;
- default:
- assert(0);
- break;
- }
-
- if (numElems > 1) {
- json.endArray();
- }
-
- json.endMember();
- }
-}
-
-
-static inline void
-dumpProgramUniforms(JSONWriter &json, GLint program)
-{
- GLint active_uniforms = 0;
- glGetProgramiv(program, GL_ACTIVE_UNIFORMS, &active_uniforms);
- if (!active_uniforms) {
- return;
- }
-
- GLint active_uniform_max_length = 0;
- glGetProgramiv(program, GL_ACTIVE_UNIFORM_MAX_LENGTH, &active_uniform_max_length);
- GLchar *name = new GLchar[active_uniform_max_length];
- if (!name) {
- return;
- }
-
- for (GLint index = 0; index < active_uniforms; ++index) {
- GLsizei length = 0;
- GLint size = 0;
- GLenum type = GL_NONE;
- glGetActiveUniform(program, index, active_uniform_max_length, &length, &size, &type, name);
-
- dumpUniform(json, program, size, type, name);
- }
-
- delete [] name;
-}
-
-
-static inline void
-dumpProgramObjUniforms(JSONWriter &json, GLhandleARB programObj)
-{
- GLint active_uniforms = 0;
- glGetObjectParameterivARB(programObj, GL_OBJECT_ACTIVE_UNIFORMS_ARB, &active_uniforms);
- if (!active_uniforms) {
- return;
- }
-
- GLint active_uniform_max_length = 0;
- glGetObjectParameterivARB(programObj, GL_OBJECT_ACTIVE_UNIFORM_MAX_LENGTH_ARB, &active_uniform_max_length);
- GLchar *name = new GLchar[active_uniform_max_length];
- if (!name) {
- return;
- }
-
- for (GLint index = 0; index < active_uniforms; ++index) {
- GLsizei length = 0;
- GLint size = 0;
- GLenum type = GL_NONE;
- glGetActiveUniformARB(programObj, index, active_uniform_max_length, &length, &size, &type, name);
-
- dumpUniformARB(json, programObj, size, type, name);
- }
-
- delete [] name;
-}
-
-
-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;
- }
-
- 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
-dumpArbProgramUniforms(JSONWriter &json, GLenum target, const char *prefix)
-{
- if (!glIsEnabled(target)) {
- return;
- }
-
- GLint program_parameters = 0;
- glGetProgramivARB(target, GL_PROGRAM_PARAMETERS_ARB, &program_parameters);
- if (!program_parameters) {
- return;
- }
-
- GLint max_program_local_parameters = 0;
- glGetProgramivARB(target, GL_MAX_PROGRAM_LOCAL_PARAMETERS_ARB, &max_program_local_parameters);
- for (GLint index = 0; index < max_program_local_parameters; ++index) {
- GLdouble params[4] = {0, 0, 0, 0};
- glGetProgramLocalParameterdvARB(target, index, params);
-
- if (!params[0] && !params[1] && !params[2] && !params[3]) {
- continue;
- }
-
- char name[256];
- snprintf(name, sizeof name, "%sprogram.local[%i]", prefix, index);
-
- json.beginMember(name);
- json.beginArray();
- json.writeNumber(params[0]);
- json.writeNumber(params[1]);
- json.writeNumber(params[2]);
- json.writeNumber(params[3]);
- json.endArray();
- json.endMember();
- }
-
- GLint max_program_env_parameters = 0;
- glGetProgramivARB(target, GL_MAX_PROGRAM_ENV_PARAMETERS_ARB, &max_program_env_parameters);
- for (GLint index = 0; index < max_program_env_parameters; ++index) {
- GLdouble params[4] = {0, 0, 0, 0};
- glGetProgramEnvParameterdvARB(target, index, params);
-
- if (!params[0] && !params[1] && !params[2] && !params[3]) {
- continue;
- }
-
- char name[256];
- snprintf(name, sizeof name, "%sprogram.env[%i]", prefix, index);
-
- json.beginMember(name);
- json.beginArray();
- json.writeNumber(params[0]);
- json.writeNumber(params[1]);
- json.writeNumber(params[2]);
- json.writeNumber(params[3]);
- json.endArray();
- json.endMember();
- }
-}
-
-
-static inline void
-dumpShadersUniforms(JSONWriter &json)
-{
- GLint program = 0;
- glGetIntegerv(GL_CURRENT_PROGRAM, &program);
-
- GLhandleARB programObj = glGetHandleARB(GL_PROGRAM_OBJECT_ARB);
-
- json.beginMember("shaders");
- json.beginObject();
- if (program) {
- dumpProgram(json, program);
- } else if (programObj) {
- dumpProgramObj(json, programObj);
- } else {
- dumpArbProgram(json, GL_FRAGMENT_PROGRAM_ARB);
- dumpArbProgram(json, GL_VERTEX_PROGRAM_ARB);
- }
- json.endObject();
- json.endMember(); // shaders
-
- json.beginMember("uniforms");
- json.beginObject();
- if (program) {
- dumpProgramUniforms(json, program);
- } else if (programObj) {
- dumpProgramObjUniforms(json, programObj);
- } else {
- dumpArbProgramUniforms(json, GL_FRAGMENT_PROGRAM_ARB, "fp.");
- dumpArbProgramUniforms(json, GL_VERTEX_PROGRAM_ARB, "vp.");
- }
- json.endObject();
- json.endMember(); // uniforms
-}
-
-
-static inline void
-dumpTextureImage(JSONWriter &json, GLenum target, GLint level)
-{
- GLint width, height = 1, depth = 1;
-
- width = 0;
- glGetTexLevelParameteriv(target, level, GL_TEXTURE_WIDTH, &width);
-
- if (target != GL_TEXTURE_1D) {
- height = 0;
- glGetTexLevelParameteriv(target, level, GL_TEXTURE_HEIGHT, &height);
- if (target == GL_TEXTURE_3D) {
- depth = 0;
- glGetTexLevelParameteriv(target, level, GL_TEXTURE_DEPTH, &depth);
- }
- }
-
- if (width <= 0 || height <= 0 || depth <= 0) {
- return;
- } else {
- char label[512];
-
- 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);
-
- json.beginMember(label);
-
- json.beginObject();
-
- // 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__", depth);
-
- // 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__", 4);
-
- GLubyte *pixels = new GLubyte[depth*width*height*4];
-
- resetPixelPackState();
-
- glGetTexImage(target, level, GL_RGBA, GL_UNSIGNED_BYTE, pixels);
-
- restorePixelPackState();
-
- json.beginMember("__data__");
- char *pngBuffer;
- int pngBufferSize;
- image::writePixelsToBuffer(pixels, width, height, 4, true, &pngBuffer, &pngBufferSize);
- json.writeBase64(pngBuffer, pngBufferSize);
- free(pngBuffer);
- json.endMember(); // __data__
-
- delete [] pixels;
- json.endObject();
- }
-}
-
-
-static inline void
-dumpTexture(JSONWriter &json, GLenum target, GLenum binding)
-{
- GLint texture_binding = 0;
- glGetIntegerv(binding, &texture_binding);
- if (!glIsEnabled(target) && !texture_binding) {
- return;
- }
-
- GLint level = 0;
- do {
- GLint width = 0, height = 0;
- glGetTexLevelParameteriv(target, level, GL_TEXTURE_WIDTH, &width);
- glGetTexLevelParameteriv(target, level, GL_TEXTURE_HEIGHT, &height);
- if (!width || !height) {
- break;
- }
-
- if (target == GL_TEXTURE_CUBE_MAP) {
- for (int face = 0; face < 6; ++face) {
- dumpTextureImage(json, GL_TEXTURE_CUBE_MAP_POSITIVE_X + face, level);
- }
- } else {
- dumpTextureImage(json, target, level);
- }
-
- ++level;
- } while(true);
-}
-
-
-static inline void
-dumpTextures(JSONWriter &json)
-{
- json.beginMember("textures");
- 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);
- 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);
- }
- glActiveTexture(active_texture);
- json.endObject();
- json.endMember(); // textures
-}
-
-
-static bool
-getDrawableBounds(GLint *width, GLint *height) {
-#if defined(_WIN32)
-
- HDC hDC = wglGetCurrentDC();
- if (!hDC) {
- return false;
- }
-
- HWND hWnd = WindowFromDC(hDC);
- RECT rect;
-
- if (!GetClientRect(hWnd, &rect)) {
- return false;
- }
-
- *width = rect.right - rect.left;
- *height = rect.bottom - rect.top;
-
-#elif defined(__APPLE__)
-
- CGLContextObj ctx = CGLGetCurrentContext();
- if (ctx == NULL) {
- return false;
- }
-
- CGSConnectionID cid;
- CGSWindowID wid;
- CGSSurfaceID sid;
-
- if (CGLGetSurface(ctx, &cid, &wid, &sid) != kCGLNoError) {
- return false;
- }
-
- CGRect rect;
-
- if (CGSGetSurfaceBounds(cid, wid, sid, &rect) != 0) {
- return false;
- }
-
- *width = rect.size.width;
- *height = rect.size.height;
-
-#else
-
- Display *display;
- Drawable drawable;
- Window root;
- int x, y;
- unsigned int w, h, bw, depth;
-
- display = glXGetCurrentDisplay();
- if (!display) {
- return false;
- }
-
- drawable = glXGetCurrentDrawable();
- if (drawable == None) {
- return false;
- }
-
- if (!XGetGeometry(display, drawable, &root, &x, &y, &w, &h, &bw, &depth)) {
- return false;
- }
-
- *width = w;
- *height = h;
-
-#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;
-}
-
-
-static bool
-getTextureLevelSize(GLint texture, GLint level, GLint *width, GLint *height)
-{
- *width = 0;
- *height = 0;
-
- GLenum target;
- GLint bound_texture = 0;
- if (!bindTexture(texture, target, bound_texture)) {
- return false;
- }
-
- glGetTexLevelParameteriv(target, level, GL_TEXTURE_WIDTH, width);
- glGetTexLevelParameteriv(target, level, GL_TEXTURE_HEIGHT, height);
-
- glBindTexture(target, bound_texture);
-
- return *width > 0 && *height > 0;
-}
-
-
-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 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;
- }
-}
-
-
-image::Image *
-getDrawBufferImage(GLenum format) {
- GLint channels = __gl_format_channels(format);
- if (channels > 4) {
- return NULL;
- }
-
- GLint draw_framebuffer = 0;
- glGetIntegerv(GL_DRAW_FRAMEBUFFER_BINDING, &draw_framebuffer);
-
- GLint draw_buffer = GL_NONE;
- GLint width, height;
- if (draw_framebuffer) {
- glGetIntegerv(GL_DRAW_BUFFER0, &draw_buffer);
- if (draw_buffer == GL_NONE) {
- return NULL;
- }
-
- if (!getFramebufferAttachmentSize(GL_DRAW_FRAMEBUFFER, draw_buffer, &width, &height)) {
- return NULL;
- }
- } else {
- glGetIntegerv(GL_DRAW_BUFFER, &draw_buffer);
- if (draw_buffer == GL_NONE) {
- return NULL;
- }
+Context::Context(void) {
+ memset(this, 0, sizeof *this);
- if (!getDrawableBounds(&width, &height)) {
- return NULL;
+ 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] == ' ' || version[9] == '-')) {
+ ES = true;
}
}
- image::Image *image = new image::Image(width, height, channels, true);
- if (!image) {
- return NULL;
- }
-
- while (glGetError() != GL_NO_ERROR) {}
-
- GLint read_framebuffer = 0;
- glGetIntegerv(GL_READ_FRAMEBUFFER_BINDING, &read_framebuffer);
- glBindFramebuffer(GL_READ_FRAMEBUFFER, draw_framebuffer);
-
- GLint read_buffer = 0;
- glGetIntegerv(GL_READ_BUFFER, &read_buffer);
- glReadBuffer(draw_buffer);
-
- // TODO: reset imaging state too
- resetPixelPackState();
-
- glReadPixels(0, 0, width, height, format, GL_UNSIGNED_BYTE, image->pixels);
-
- restorePixelPackState();
- glReadBuffer(read_buffer);
- glBindFramebuffer(GL_READ_FRAMEBUFFER, read_framebuffer);
+ ARB_draw_buffers = !ES;
- 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;
+ // TODO: Check extensions we use below
}
-
-/**
- * Dump the image of the currently bound read buffer.
- */
-static inline void
-dumpReadBufferImage(JSONWriter &json, GLint width, GLint height, GLenum format)
-{
- GLint channels = __gl_format_channels(format);
-
- json.beginObject();
-
- // 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);
-
- // 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);
-
- GLubyte *pixels = new GLubyte[width*height*channels];
-
- // TODO: reset imaging state too
- resetPixelPackState();
-
- glReadPixels(0, 0, width, height, format, GL_UNSIGNED_BYTE, pixels);
-
- 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();
-}
-
-
-static inline GLuint
-downsampledFramebuffer(GLuint oldFbo, GLint drawbuffer,
- GLint colorRb, GLint depthRb, GLint stencilRb,
- GLuint *rbs, GLint *numRbs)
-{
- GLuint fbo;
- GLint format;
- GLint w, h;
-
- *numRbs = 0;
-
- glGenFramebuffers(1, &fbo);
- glBindFramebuffer(GL_FRAMEBUFFER, fbo);
-
- glBindRenderbuffer(GL_RENDERBUFFER, colorRb);
- glGetRenderbufferParameteriv(GL_RENDERBUFFER,
- GL_RENDERBUFFER_WIDTH, &w);
- glGetRenderbufferParameteriv(GL_RENDERBUFFER,
- GL_RENDERBUFFER_HEIGHT, &h);
- glGetRenderbufferParameteriv(GL_RENDERBUFFER,
- GL_RENDERBUFFER_INTERNAL_FORMAT, &format);
-
- glGenRenderbuffers(1, &rbs[*numRbs]);
- glBindRenderbuffer(GL_RENDERBUFFER, rbs[*numRbs]);
- glRenderbufferStorage(GL_RENDERBUFFER, format, w, h);
- glFramebufferRenderbuffer(GL_FRAMEBUFFER, drawbuffer,
- GL_RENDERBUFFER, rbs[*numRbs]);
-
- glBindFramebuffer(GL_READ_FRAMEBUFFER, oldFbo);
- glBindFramebuffer(GL_DRAW_FRAMEBUFFER, fbo);
- glDrawBuffer(drawbuffer);
- glReadBuffer(drawbuffer);
- glBlitFramebuffer(0, 0, w, h, 0, 0, w, h,
- GL_COLOR_BUFFER_BIT, GL_NEAREST);
- glBindFramebuffer(GL_FRAMEBUFFER, fbo);
- ++*numRbs;
-
- if (stencilRb == depthRb && stencilRb) {
- //combined depth and stencil buffer
- glBindRenderbuffer(GL_RENDERBUFFER, depthRb);
- glGetRenderbufferParameteriv(GL_RENDERBUFFER,
- GL_RENDERBUFFER_WIDTH, &w);
- glGetRenderbufferParameteriv(GL_RENDERBUFFER,
- GL_RENDERBUFFER_HEIGHT, &h);
- glGetRenderbufferParameteriv(GL_RENDERBUFFER,
- GL_RENDERBUFFER_INTERNAL_FORMAT, &format);
-
- glGenRenderbuffers(1, &rbs[*numRbs]);
- glBindRenderbuffer(GL_RENDERBUFFER, rbs[*numRbs]);
- glRenderbufferStorage(GL_RENDERBUFFER, format, w, h);
- glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_DEPTH_STENCIL_ATTACHMENT,
- GL_RENDERBUFFER, rbs[*numRbs]);
- glBindFramebuffer(GL_READ_FRAMEBUFFER, oldFbo);
- glBindFramebuffer(GL_DRAW_FRAMEBUFFER, fbo);
- glBlitFramebuffer(0, 0, w, h, 0, 0, w, h,
- GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT, GL_NEAREST);
- glBindFramebuffer(GL_FRAMEBUFFER, fbo);
- ++*numRbs;
+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 {
- if (depthRb) {
- glBindRenderbuffer(GL_RENDERBUFFER, depthRb);
- glGetRenderbufferParameteriv(GL_RENDERBUFFER,
- GL_RENDERBUFFER_WIDTH, &w);
- glGetRenderbufferParameteriv(GL_RENDERBUFFER,
- GL_RENDERBUFFER_HEIGHT, &h);
- glGetRenderbufferParameteriv(GL_RENDERBUFFER,
- GL_RENDERBUFFER_INTERNAL_FORMAT, &format);
-
- glGenRenderbuffers(1, &rbs[*numRbs]);
- glBindRenderbuffer(GL_RENDERBUFFER, rbs[*numRbs]);
- glRenderbufferStorage(GL_RENDERBUFFER, format, w, h);
- glFramebufferRenderbuffer(GL_FRAMEBUFFER,
- GL_DEPTH_ATTACHMENT,
- GL_RENDERBUFFER, rbs[*numRbs]);
- glBindFramebuffer(GL_READ_FRAMEBUFFER, oldFbo);
- glBindFramebuffer(GL_DRAW_FRAMEBUFFER, fbo);
- glDrawBuffer(GL_DEPTH_ATTACHMENT);
- glReadBuffer(GL_DEPTH_ATTACHMENT);
- glBlitFramebuffer(0, 0, w, h, 0, 0, w, h,
- GL_DEPTH_BUFFER_BIT, GL_NEAREST);
- ++*numRbs;
- }
- if (stencilRb) {
- glBindRenderbuffer(GL_RENDERBUFFER, stencilRb);
- glGetRenderbufferParameteriv(GL_RENDERBUFFER,
- GL_RENDERBUFFER_WIDTH, &w);
- glGetRenderbufferParameteriv(GL_RENDERBUFFER,
- GL_RENDERBUFFER_HEIGHT, &h);
- glGetRenderbufferParameteriv(GL_RENDERBUFFER,
- GL_RENDERBUFFER_INTERNAL_FORMAT, &format);
-
- glGenRenderbuffers(1, &rbs[*numRbs]);
- glBindRenderbuffer(GL_RENDERBUFFER, rbs[*numRbs]);
- glRenderbufferStorage(GL_RENDERBUFFER, format, w, h);
- glFramebufferRenderbuffer(GL_FRAMEBUFFER,
- GL_STENCIL_ATTACHMENT,
- GL_RENDERBUFFER, rbs[*numRbs]);
- glBindFramebuffer(GL_READ_FRAMEBUFFER, oldFbo);
- glBindFramebuffer(GL_DRAW_FRAMEBUFFER, fbo);
- glDrawBuffer(GL_STENCIL_ATTACHMENT);
- glReadBuffer(GL_STENCIL_ATTACHMENT);
- glBlitFramebuffer(0, 0, w, h, 0, 0, w, h,
- GL_STENCIL_BUFFER_BIT, GL_NEAREST);
- ++*numRbs;
- }
- }
-
- return fbo;
-}
-
-
-/**
- * Dump images of current draw drawable/window.
- */
-static void
-dumpDrawableImages(JSONWriter &json)
-{
- GLint width, height;
-
- if (!getDrawableBounds(&width, &height)) {
- return;
+ packAlignment = 4;
+ glGetIntegerv(GL_PACK_ALIGNMENT, &packAlignment);
}
-
- GLint draw_buffer = GL_NONE;
- glGetIntegerv(GL_DRAW_BUFFER, &draw_buffer);
- glReadBuffer(draw_buffer);
-
- if (draw_buffer != GL_NONE) {
- GLint read_buffer = GL_NONE;
- glGetIntegerv(GL_READ_BUFFER, &read_buffer);
-
- GLint alpha_bits = 0;
- glGetIntegerv(GL_ALPHA_BITS, &alpha_bits);
- GLenum format = alpha_bits ? GL_RGBA : GL_RGB;
- json.beginMember(enumToString(draw_buffer));
- dumpReadBufferImage(json, width, height, format);
- json.endMember();
-
- glReadBuffer(read_buffer);
- }
-
- 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
-dumpFramebufferAttachment(JSONWriter &json, GLenum target, GLenum attachment, GLenum format)
-{
- GLint width = 0, height = 0;
- if (!getFramebufferAttachmentSize(target, attachment, &width, &height)) {
- return;
- }
-
- json.beginMember(enumToString(attachment));
- dumpReadBufferImage(json, width, height, format);
- json.endMember();
-}
-
-
-static void
-dumpFramebufferAttachments(JSONWriter &json, 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);
-
- dumpFramebufferAttachment(json, target, GL_DEPTH_ATTACHMENT, GL_DEPTH_COMPONENT);
- dumpFramebufferAttachment(json, target, GL_STENCIL_ATTACHMENT, GL_STENCIL_INDEX);
-
- glBindFramebuffer(GL_READ_FRAMEBUFFER, read_framebuffer);
+ glPixelStorei(GL_PACK_ALIGNMENT, 1);
}
-
-static void
-dumpFramebuffer(JSONWriter &json)
-{
- json.beginMember("framebuffer");
- json.beginObject();
-
- GLint boundDrawFbo = 0, boundReadFbo = 0;
- glGetIntegerv(GL_DRAW_FRAMEBUFFER_BINDING, &boundDrawFbo);
- glGetIntegerv(GL_READ_FRAMEBUFFER_BINDING, &boundReadFbo);
- if (!boundDrawFbo) {
- dumpDrawableImages(json);
+void
+Context::restorePixelPackState(void) {
+ if (!ES) {
+ glPopClientAttrib();
} else {
- 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 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;
-
- if (multisample) {
- // glReadPixels doesnt support multisampled buffers so we need
- // to blit the fbo to a temporary one
- fboCopy = downsampledFramebuffer(boundDrawFbo, draw_buffer0,
- colorRb, depthRb, stencilRb,
- rbs, &numRbs);
- }
-
- dumpFramebufferAttachments(json, GL_DRAW_FRAMEBUFFER);
-
- if (multisample) {
- glBindRenderbuffer(GL_RENDERBUFFER_BINDING, boundRb);
- glDeleteRenderbuffers(numRbs, rbs);
- glDeleteFramebuffers(1, &fboCopy);
- }
-
- glBindFramebuffer(GL_READ_FRAMEBUFFER, boundReadFbo);
- glBindFramebuffer(GL_DRAW_FRAMEBUFFER, boundDrawFbo);
+ glPixelStorei(GL_PACK_ALIGNMENT, packAlignment);
}
-
- json.endObject();
- json.endMember(); // framebuffer
}
}
#endif
- dumpParameters(json);
- dumpShadersUniforms(json);
- dumpTextures(json);
- dumpFramebuffer(json);
+ Context context;
+
+ dumpParameters(json, context);
+ dumpShadersUniforms(json, context);
+ dumpTextures(json, context);
+ dumpFramebuffer(json, context);
#ifndef NDEBUG
for (unsigned i = 0; i < NUM_BINDINGS; ++i) {
projects / apitrace / blobdiff