diff options
Diffstat (limited to 'source/gameengine/Rasterizer/RAS_2DFilterManager.cpp')
| -rw-r--r-- | source/gameengine/Rasterizer/RAS_2DFilterManager.cpp | 562 |
1 files changed, 0 insertions, 562 deletions
diff --git a/source/gameengine/Rasterizer/RAS_2DFilterManager.cpp b/source/gameengine/Rasterizer/RAS_2DFilterManager.cpp deleted file mode 100644 index 2749752bc6c..00000000000 --- a/source/gameengine/Rasterizer/RAS_2DFilterManager.cpp +++ /dev/null @@ -1,562 +0,0 @@ -/* - * ***** BEGIN GPL LICENSE BLOCK ***** - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version 2 - * of the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software Foundation, - * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - * - * Contributor(s): none yet. - * - * ***** END GPL LICENSE BLOCK ***** - */ - -/** \file gameengine/Rasterizer/RAS_2DFilterManager.cpp - * \ingroup bgerast - */ - -#include "BLI_utildefines.h" - -#include "RAS_OpenGLFilters/RAS_Blur2DFilter.h" -#include "RAS_OpenGLFilters/RAS_Sharpen2DFilter.h" -#include "RAS_OpenGLFilters/RAS_Dilation2DFilter.h" -#include "RAS_OpenGLFilters/RAS_Erosion2DFilter.h" -#include "RAS_OpenGLFilters/RAS_Laplacian2DFilter.h" -#include "RAS_OpenGLFilters/RAS_Sobel2DFilter.h" -#include "RAS_OpenGLFilters/RAS_Prewitt2DFilter.h" -#include "RAS_OpenGLFilters/RAS_GrayScale2DFilter.h" -#include "RAS_OpenGLFilters/RAS_Sepia2DFilter.h" -#include "RAS_OpenGLFilters/RAS_Invert2DFilter.h" - -#include "STR_String.h" -#include "RAS_ICanvas.h" -#include "RAS_Rect.h" -#include "RAS_2DFilterManager.h" -#include <iostream> - -#include "GPU_glew.h" - -#include <stdio.h> - -#include "EXP_Value.h" - -RAS_2DFilterManager::RAS_2DFilterManager(): -texturewidth(-1), textureheight(-1), -/* numberoffilters(0), */ /* UNUSED */ need_tex_update(true) -{ - isshadersupported = GLEW_ARB_shader_objects && - GLEW_ARB_fragment_shader && GLEW_ARB_multitexture; - - /* used to return before 2.49 but need to initialize values so don't */ - if (!isshadersupported) - std::cout<<"shaders not supported!" << std::endl; - - int passindex; - for (passindex =0; passindex<MAX_RENDER_PASS; passindex++) - { - m_filters[passindex] = 0; - m_enabled[passindex] = 0; - texflag[passindex] = 0; - m_gameObjects[passindex] = NULL; - } - texname[0] = texname[1] = texname[2] = -1; - errorprinted= false; -} - -RAS_2DFilterManager::~RAS_2DFilterManager() -{ - FreeTextures(); - - for (int passindex = 0; passindex < MAX_RENDER_PASS; passindex++) { - if (m_filters[passindex]) { - glDeleteObjectARB(m_filters[passindex]); - } - } -} - -void RAS_2DFilterManager::PrintShaderErrors(unsigned int shader, const char *task, const char *code) -{ - GLcharARB log[5000]; - GLsizei length = 0; - const char *c, *pos, *end; - int line = 1; - - if (errorprinted) - return; - - errorprinted= true; - - glGetInfoLogARB(shader, sizeof(log), &length, log); - end = code + strlen(code); - - printf("2D Filter GLSL Shader: %s error:\n", task); - - c = code; - while ((c < end) && (pos = strchr(c, '\n'))) { - printf("%2d ", line); - fwrite(c, (pos+1)-c, 1, stdout); - c = pos+1; - line++; - } - - puts(c); - puts(log); - puts("\n"); -} - -unsigned int RAS_2DFilterManager::CreateShaderProgram(const char* shadersource) -{ - GLuint program = 0; - GLuint fShader = glCreateShaderObjectARB(GL_FRAGMENT_SHADER); - GLint success; - - glShaderSourceARB(fShader, 1, (const char**)&shadersource, NULL); - - glCompileShaderARB(fShader); - - - glGetObjectParameterivARB(fShader, GL_COMPILE_STATUS, &success); - if (!success) { - /*Shader Comile Error*/ - PrintShaderErrors(fShader, "compile", shadersource); - goto fail; - } - - program = glCreateProgramObjectARB(); - glAttachObjectARB(program, fShader); - - glLinkProgramARB(program); - glGetObjectParameterivARB(program, GL_LINK_STATUS, &success); - if (!success) { - /*Program Link Error*/ - PrintShaderErrors(fShader, "link", shadersource); - goto fail; - } - - glValidateProgramARB(program); - glGetObjectParameterivARB(program, GL_VALIDATE_STATUS, &success); - if (!success) { - /*Program Validation Error*/ - PrintShaderErrors(fShader, "validate", shadersource); - goto fail; - } - - /* owned by 'program' */ - if (fShader) { - glDeleteObjectARB(fShader); - } - - return program; - - -fail: - if (fShader) { - glDeleteObjectARB(fShader); - } - - if (program) { - glDeleteObjectARB(program); - } - return 0; -} - -unsigned int RAS_2DFilterManager::CreateShaderProgram(int filtermode) -{ - switch (filtermode) { - case RAS_2DFILTER_BLUR: - return CreateShaderProgram(BlurFragmentShader); - case RAS_2DFILTER_SHARPEN: - return CreateShaderProgram(SharpenFragmentShader); - case RAS_2DFILTER_DILATION: - return CreateShaderProgram(DilationFragmentShader); - case RAS_2DFILTER_EROSION: - return CreateShaderProgram(ErosionFragmentShader); - case RAS_2DFILTER_LAPLACIAN: - return CreateShaderProgram(LaplacionFragmentShader); - case RAS_2DFILTER_SOBEL: - return CreateShaderProgram(SobelFragmentShader); - case RAS_2DFILTER_PREWITT: - return CreateShaderProgram(PrewittFragmentShader); - case RAS_2DFILTER_GRAYSCALE: - return CreateShaderProgram(GrayScaleFragmentShader); - case RAS_2DFILTER_SEPIA: - return CreateShaderProgram(SepiaFragmentShader); - case RAS_2DFILTER_INVERT: - return CreateShaderProgram(InvertFragmentShader); - } - return 0; -} - -void RAS_2DFilterManager::AnalyseShader(int passindex, vector<STR_String>& propNames) -{ - texflag[passindex] = 0; - if (glGetUniformLocationARB(m_filters[passindex], "bgl_DepthTexture") != -1) - { - if (GLEW_ARB_depth_texture) - texflag[passindex] |= 0x1; - } - if (glGetUniformLocationARB(m_filters[passindex], "bgl_LuminanceTexture") != -1) - { - texflag[passindex] |= 0x2; - } - - if (m_gameObjects[passindex]) - { - int objProperties = propNames.size(); - int i; - for (i=0; i<objProperties; i++) - if (glGetUniformLocationARB(m_filters[passindex], propNames[i]) != -1) - m_properties[passindex].push_back(propNames[i]); - } -} - -void RAS_2DFilterManager::StartShaderProgram(int passindex) -{ - GLint uniformLoc; - glUseProgramObjectARB(m_filters[passindex]); - uniformLoc = glGetUniformLocationARB(m_filters[passindex], "bgl_RenderedTexture"); - glActiveTextureARB(GL_TEXTURE0); - glBindTexture(GL_TEXTURE_2D, texname[0]); - - if (uniformLoc != -1) - { - glUniform1iARB(uniformLoc, 0); - } - - /* send depth texture to glsl program if it needs */ - if (texflag[passindex] & 0x1) { - uniformLoc = glGetUniformLocationARB(m_filters[passindex], "bgl_DepthTexture"); - glActiveTextureARB(GL_TEXTURE1); - glBindTexture(GL_TEXTURE_2D, texname[1]); - - if (uniformLoc != -1) - { - glUniform1iARB(uniformLoc, 1); - } - } - - /* send luminance texture to glsl program if it needs */ - if (texflag[passindex] & 0x2) { - uniformLoc = glGetUniformLocationARB(m_filters[passindex], "bgl_LuminanceTexture"); - glActiveTextureARB(GL_TEXTURE2); - glBindTexture(GL_TEXTURE_2D, texname[2]); - - if (uniformLoc != -1) - { - glUniform1iARB(uniformLoc, 2); - } - } - - uniformLoc = glGetUniformLocationARB(m_filters[passindex], "bgl_TextureCoordinateOffset"); - if (uniformLoc != -1) - { - glUniform2fvARB(uniformLoc, 9, textureoffsets); - } - uniformLoc = glGetUniformLocationARB(m_filters[passindex], "bgl_RenderedTextureWidth"); - if (uniformLoc != -1) - { - glUniform1fARB(uniformLoc,texturewidth); - } - uniformLoc = glGetUniformLocationARB(m_filters[passindex], "bgl_RenderedTextureHeight"); - if (uniformLoc != -1) - { - glUniform1fARB(uniformLoc,textureheight); - } - - int i, objProperties = m_properties[passindex].size(); - for (i=0; i<objProperties; i++) - { - uniformLoc = glGetUniformLocationARB(m_filters[passindex], m_properties[passindex][i]); - - if (uniformLoc == -1) - continue; - - CValue *property = ((CValue *)m_gameObjects[passindex])->GetProperty(m_properties[passindex][i]); - - if (!property) - continue; - - switch (property->GetValueType()) { - case VALUE_INT_TYPE: - glUniform1iARB(uniformLoc, property->GetNumber()); - break; - case VALUE_FLOAT_TYPE: - glUniform1fARB(uniformLoc, property->GetNumber()); - break; - default: - break; - } - } -} - -void RAS_2DFilterManager::EndShaderProgram() -{ - glUseProgramObjectARB(0); -} - -void RAS_2DFilterManager::FreeTextures() -{ - if (texname[0]!=(unsigned int)-1) - glDeleteTextures(1, (GLuint*)&texname[0]); - if (texname[1]!=(unsigned int)-1) - glDeleteTextures(1, (GLuint*)&texname[1]); - if (texname[2]!=(unsigned int)-1) - glDeleteTextures(1, (GLuint*)&texname[2]); -} - -void RAS_2DFilterManager::SetupTextures(bool depth, bool luminance) -{ - FreeTextures(); - - glGenTextures(1, (GLuint*)&texname[0]); - glBindTexture(GL_TEXTURE_2D, texname[0]); - glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, texturewidth, textureheight, 0, GL_RGBA, - GL_UNSIGNED_BYTE, 0); - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP); - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP); - - if (depth) { - glGenTextures(1, (GLuint*)&texname[1]); - glBindTexture(GL_TEXTURE_2D, texname[1]); - glTexImage2D(GL_TEXTURE_2D, 0, GL_DEPTH_COMPONENT32, texturewidth,textureheight, - 0, GL_DEPTH_COMPONENT, GL_UNSIGNED_BYTE,NULL); - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_COMPARE_MODE, - GL_NONE); - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP); - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP); - } - - if (luminance) { - glGenTextures(1, (GLuint*)&texname[2]); - glBindTexture(GL_TEXTURE_2D, texname[2]); - glTexImage2D(GL_TEXTURE_2D, 0, GL_LUMINANCE16, texturewidth, textureheight, - 0, GL_LUMINANCE, GL_UNSIGNED_BYTE, 0); - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP); - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP); - } -} - -void RAS_2DFilterManager::UpdateOffsetMatrix(RAS_ICanvas* canvas) -{ - /* RAS_Rect canvas_rect = canvas->GetWindowArea(); */ /* UNUSED */ - texturewidth = canvas->GetWidth()+1; - textureheight = canvas->GetHeight()+1; - GLint i,j; - - if (!GL_ARB_texture_non_power_of_two) - { - i = 0; - while ((1 << i) <= texturewidth) - i++; - texturewidth = (1 << (i)); - - // Now for height - i = 0; - while ((1 << i) <= textureheight) - i++; - textureheight = (1 << (i)); - } - - GLfloat xInc = 1.0f / (GLfloat)texturewidth; - GLfloat yInc = 1.0f / (GLfloat)textureheight; - - for (i = 0; i < 3; i++) - { - for (j = 0; j < 3; j++) - { - textureoffsets[(((i*3)+j)*2)+0] = (-1.0f * xInc) + ((GLfloat)i * xInc); - textureoffsets[(((i*3)+j)*2)+1] = (-1.0f * yInc) + ((GLfloat)j * yInc); - } - } -} - -void RAS_2DFilterManager::UpdateCanvasTextureCoord(const int viewport[4]) -{ - /* - * This function update canvascoord[]. - * These parameters are used to create texcoord[1] - * That way we can access the texcoord relative to the canvas: - * (0.0,0.0) bottom left, (1.0,1.0) top right, (0.5,0.5) center - */ - canvascoord[0] = (GLfloat) viewport[0] / -viewport[2]; - canvascoord[1] = (GLfloat) (texturewidth - viewport[0]) / viewport[2]; - - canvascoord[2] = (GLfloat) viewport[1] / -viewport[3]; - canvascoord[3] = (GLfloat)(textureheight - viewport[1]) / viewport[3]; -} - -void RAS_2DFilterManager::RenderFilters(RAS_ICanvas* canvas) -{ - bool need_depth=false; - bool need_luminance=false; - int num_filters = 0; - - int passindex; - - if (!isshadersupported) - return; - - for (passindex =0; passindex<MAX_RENDER_PASS; passindex++) - { - if (m_filters[passindex] && m_enabled[passindex]) { - num_filters ++; - if (texflag[passindex] & 0x1) - need_depth = true; - if (texflag[passindex] & 0x2) - need_luminance = true; - if (need_depth && need_luminance) - break; - } - } - - if (num_filters <= 0) - return; - - const int *viewport = canvas->GetViewPort(); - - if (texturewidth != viewport[2] || textureheight != viewport[3]) - { - UpdateOffsetMatrix(canvas); - UpdateCanvasTextureCoord(viewport); - need_tex_update = true; - } - - if (need_tex_update) - { - SetupTextures(need_depth, need_luminance); - need_tex_update = false; - } - - if (need_depth) { - glActiveTextureARB(GL_TEXTURE1); - glBindTexture(GL_TEXTURE_2D, texname[1]); - glCopyTexImage2D(GL_TEXTURE_2D,0,GL_DEPTH_COMPONENT, viewport[0], viewport[1], viewport[2], viewport[3], 0); - } - - if (need_luminance) { - glActiveTextureARB(GL_TEXTURE2); - glBindTexture(GL_TEXTURE_2D, texname[2]); - glCopyTexImage2D(GL_TEXTURE_2D,0,GL_LUMINANCE16, viewport[0], viewport[1], viewport[2], viewport[3], 0); - } - - // reverting to texunit 0, without this we get bug [#28462] - glActiveTextureARB(GL_TEXTURE0); - - // We do this to make side-by-side stereo rendering work correctly with 2D filters. It would probably be nicer to just set the viewport, - // but it can be easier for writing shaders to have the coordinates for the whole screen instead of just part of the screen. - RAS_Rect scissor_rect = canvas->GetDisplayArea(); - - glScissor(scissor_rect.GetLeft() + viewport[0], - scissor_rect.GetBottom() + viewport[1], - scissor_rect.GetWidth() + 1, - scissor_rect.GetHeight() + 1); - - glDisable(GL_DEPTH_TEST); - // in case the previous material was wire - glPolygonMode(GL_FRONT_AND_BACK, GL_FILL); - // if the last rendered face had alpha add it would messes with the color of the plane we apply 2DFilter to - glDisable(GL_BLEND); - // fix for [#34523] alpha buffer is now available for all OSs - glDisable(GL_ALPHA_TEST); - - glPushMatrix(); //GL_MODELVIEW - glLoadIdentity(); // GL_MODELVIEW - glMatrixMode(GL_TEXTURE); - glLoadIdentity(); - glMatrixMode(GL_PROJECTION); - glPushMatrix(); - glLoadIdentity(); - - for (passindex =0; passindex<MAX_RENDER_PASS; passindex++) - { - if (m_filters[passindex] && m_enabled[passindex]) - { - StartShaderProgram(passindex); - - glActiveTextureARB(GL_TEXTURE0); - glBindTexture(GL_TEXTURE_2D, texname[0]); - glCopyTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA8, viewport[0], viewport[1], viewport[2], viewport[3], 0); // Don't use texturewidth and textureheight in case we don't have NPOT support - glClear(GL_COLOR_BUFFER_BIT); - - glBegin(GL_QUADS); - glColor4f(1.f, 1.f, 1.f, 1.f); - glTexCoord2f(1.0f, 1.0f); glMultiTexCoord2fARB(GL_TEXTURE3_ARB, canvascoord[1], canvascoord[3]); glVertex2f(1.0f,1.0f); - glTexCoord2f(0.0f, 1.0f); glMultiTexCoord2fARB(GL_TEXTURE3_ARB, canvascoord[0], canvascoord[3]); glVertex2f(-1.0f,1.0f); - glTexCoord2f(0.0f, 0.0f); glMultiTexCoord2fARB(GL_TEXTURE3_ARB, canvascoord[0], canvascoord[2]); glVertex2f(-1.0f,-1.0f); - glTexCoord2f(1.0f, 0.0f); glMultiTexCoord2fARB(GL_TEXTURE3_ARB, canvascoord[1], canvascoord[2]); glVertex2f(1.0f,-1.0f); - glEnd(); - } - } - - glEnable(GL_DEPTH_TEST); - EndShaderProgram(); - glPopMatrix(); - glMatrixMode(GL_MODELVIEW); - glPopMatrix(); -} - -void RAS_2DFilterManager::EnableFilter(vector<STR_String>& propNames, void* gameObj, RAS_2DFILTER_MODE mode, int pass, STR_String& text) -{ - if (!isshadersupported) - return; - if (pass<0 || pass>=MAX_RENDER_PASS) - return; - need_tex_update = true; - if (mode == RAS_2DFILTER_DISABLED) - { - m_enabled[pass] = 0; - return; - } - - if (mode == RAS_2DFILTER_ENABLED) - { - m_enabled[pass] = 1; - return; - } - - if (mode == RAS_2DFILTER_NOFILTER) - { - if (m_filters[pass]) - glDeleteObjectARB(m_filters[pass]); - m_enabled[pass] = 0; - m_filters[pass] = 0; - m_gameObjects[pass] = NULL; - m_properties[pass].clear(); - texflag[pass] = 0; - return; - } - - if (mode == RAS_2DFILTER_CUSTOMFILTER) - { - if (m_filters[pass]) - glDeleteObjectARB(m_filters[pass]); - m_filters[pass] = CreateShaderProgram(text.Ptr()); - m_gameObjects[pass] = gameObj; - AnalyseShader(pass, propNames); - m_enabled[pass] = 1; - return; - } - - // We've checked all other cases, which means we must be dealing with a builtin filter - if (m_filters[pass]) - glDeleteObjectARB(m_filters[pass]); - m_filters[pass] = CreateShaderProgram(mode); - m_gameObjects[pass] = NULL; - AnalyseShader(pass, propNames); - m_enabled[pass] = 1; -} |