302 lines
8.6 KiB
C++
302 lines
8.6 KiB
C++
/**
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* @author Edouard DUPIN
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*
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* @copyright 2011, Edouard DUPIN, all right reserved
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*
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* @license BSD v3 (see license file)
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*/
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#include <vector>
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#include <ewol/debug.h>
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#include <ewol/renderer/openGL.h>
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/**
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* @brief get the draw mutex (ewol render).
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* @note due ti the fact that the system can be called for multiple instance, for naw we just limit the acces to one process at a time.
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* @return the main inteface Mutex
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*/
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static etk::Mutex& mutexOpenGl(void) {
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static etk::Mutex s_drawMutex;
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return s_drawMutex;
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}
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std::vector<mat4> l_matrixList;
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mat4 l_matrixCamera;
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static uint32_t l_flagsCurrent = 0;
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static uint32_t l_flagsMustBeSet = 0;
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static uint32_t l_textureflags = 0;
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static int32_t l_programId = 0;
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void ewol::openGL::lock(void) {
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mutexOpenGl().lock();
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l_matrixList.clear();
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mat4 tmpMat;
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l_matrixList.push_back(tmpMat);
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l_matrixCamera.identity();
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l_flagsCurrent = 0;
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l_flagsMustBeSet = 0;
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l_textureflags = 0;
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l_programId = -1;
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}
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void ewol::openGL::unLock(void) {
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mutexOpenGl().unLock();
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}
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void ewol::openGL::setBasicMatrix(const mat4& _newOne) {
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if (l_matrixList.size()!=1) {
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EWOL_ERROR("matrix is not corect size in the stack : " << l_matrixList.size());
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}
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l_matrixList.clear();
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l_matrixList.push_back(_newOne);
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}
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void ewol::openGL::setMatrix(const mat4& _newOne) {
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if (l_matrixList.size() == 0) {
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EWOL_ERROR("set matrix list is not corect size in the stack : " << l_matrixList.size());
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l_matrixList.push_back(_newOne);
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return;
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}
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l_matrixList[l_matrixList.size()-1] = _newOne;
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}
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void ewol::openGL::push(void) {
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if (l_matrixList.size() == 0) {
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EWOL_ERROR("set matrix list is not corect size in the stack : " << l_matrixList.size());
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mat4 tmp;
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l_matrixList.push_back(tmp);
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return;
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}
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mat4 tmp = l_matrixList[l_matrixList.size()-1];
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l_matrixList.push_back(tmp);
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}
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void ewol::openGL::pop(void) {
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if (l_matrixList.size() <= 1) {
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EWOL_ERROR("set matrix list is not corect size in the stack : " << l_matrixList.size());
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l_matrixList.clear();
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mat4 tmp;
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l_matrixList.push_back(tmp);
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l_matrixCamera.identity();
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return;
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}
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l_matrixList.pop_back();
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l_matrixCamera.identity();
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}
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const mat4& ewol::openGL::getMatrix(void) {
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if (l_matrixList.size() == 0) {
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EWOL_ERROR("set matrix list is not corect size in the stack : " << l_matrixList.size());
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mat4 tmp;
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l_matrixList.push_back(tmp);
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}
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return l_matrixList[l_matrixList.size()-1];
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}
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const mat4& ewol::openGL::getCameraMatrix(void) {
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return l_matrixCamera;
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}
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void ewol::openGL::setCameraMatrix(const mat4& _newOne) {
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l_matrixCamera = _newOne;
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}
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void ewol::openGL::finish(void) {
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l_programId = -1;
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l_textureflags = 0;
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}
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void ewol::openGL::flush(void) {
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l_programId = -1;
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l_textureflags = 0;
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}
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void ewol::openGL::swap(void) {
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}
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//#define DIRECT_MODE
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typedef struct {
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uint32_t curentFlag;
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GLenum OGlFlag;
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} correspondenceTable_ts;
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static correspondenceTable_ts basicFlag[] = {
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{(uint32_t)ewol::openGL::FLAG_BLEND, GL_BLEND},
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#if 0
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!(defined(__TARGET_OS__Android) || defined(__TARGET_OS__MacOs))
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{(uint32_t)ewol::openGL::FLAG_CLIP_DISTANCE_I, GL_CLIP_DISTANCE0},
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{(uint32_t)ewol::openGL::FLAG_COLOR_LOGIC_OP, GL_COLOR_LOGIC_OP},
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#endif
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{(uint32_t)ewol::openGL::FLAG_CULL_FACE, GL_CULL_FACE},
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#if 0
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!(defined(__TARGET_OS__Android) || defined(__TARGET_OS__MacOs))
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{(uint32_t)ewol::openGL::FLAG_DEBUG_OUTPUT, GL_DEBUG_OUTPUT},
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{(uint32_t)ewol::openGL::FLAG_DEBUG_OUTPUT_SYNCHRONOUS, GL_DEBUG_OUTPUT_SYNCHRONOUS},
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{(uint32_t)ewol::openGL::FLAG_DEPTH_CLAMP, GL_DEPTH_CLAMP},
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#endif
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{(uint32_t)ewol::openGL::FLAG_DEPTH_TEST, GL_DEPTH_TEST},
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{(uint32_t)ewol::openGL::FLAG_DITHER, GL_DITHER},
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#if 0
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!(defined(__TARGET_OS__Android) || defined(__TARGET_OS__MacOs))
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{(uint32_t)ewol::openGL::FLAG_FRAMEBUFFER_SRGB, GL_FRAMEBUFFER_SRGB},
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{(uint32_t)ewol::openGL::FLAG_LINE_SMOOTH, GL_LINE_SMOOTH},
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{(uint32_t)ewol::openGL::FLAG_MULTISAMPLE, GL_MULTISAMPLE},
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#endif
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{(uint32_t)ewol::openGL::FLAG_POLYGON_OFFSET_FILL, GL_POLYGON_OFFSET_FILL},
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#if 0
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!(defined(__TARGET_OS__Android) || defined(__TARGET_OS__MacOs))
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{(uint32_t)ewol::openGL::FLAG_POLYGON_OFFSET_LINE, GL_POLYGON_OFFSET_LINE},
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{(uint32_t)ewol::openGL::FLAG_POLYGON_OFFSET_POINT, GL_POLYGON_OFFSET_POINT},
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{(uint32_t)ewol::openGL::FLAG_POLYGON_SMOOTH, GL_POLYGON_SMOOTH},
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{(uint32_t)ewol::openGL::FLAG_PRIMITIVE_RESTART, GL_PRIMITIVE_RESTART},
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{(uint32_t)ewol::openGL::FLAG_PRIMITIVE_RESTART_FIXED_INDEX, GL_PRIMITIVE_RESTART_FIXED_INDEX},
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#endif
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{(uint32_t)ewol::openGL::FLAG_SAMPLE_ALPHA_TO_COVERAGE, GL_SAMPLE_ALPHA_TO_COVERAGE},
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#if 0
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!(defined(__TARGET_OS__Android) || defined(__TARGET_OS__MacOs))
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{(uint32_t)ewol::openGL::FLAG_SAMPLE_ALPHA_TO_ONE, GL_SAMPLE_ALPHA_TO_ONE},
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#endif
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{(uint32_t)ewol::openGL::FLAG_SAMPLE_COVERAGE, GL_SAMPLE_COVERAGE},
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#if 0
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!(defined(__TARGET_OS__Android) || defined(__TARGET_OS__MacOs))
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{(uint32_t)ewol::openGL::FLAG_SAMPLE_SHADING, GL_SAMPLE_SHADING},
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{(uint32_t)ewol::openGL::FLAG_SAMPLE_MASK, GL_SAMPLE_MASK},
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#endif
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{(uint32_t)ewol::openGL::FLAG_SCISSOR_TEST, GL_SCISSOR_TEST},
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{(uint32_t)ewol::openGL::FLAG_STENCIL_TEST, GL_STENCIL_TEST},
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#if 0
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!(defined(__TARGET_OS__Android) || defined(__TARGET_OS__MacOs))
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{(uint32_t)ewol::openGL::FLAG_PROGRAM_POINT_SIZE, GL_PROGRAM_POINT_SIZE},
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#endif
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{(uint32_t)ewol::openGL::FLAG_TEXTURE_2D, GL_TEXTURE_2D},
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#if 0
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!(defined(__TARGET_OS__Android) || defined(__TARGET_OS__MacOs))
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{(uint32_t)ewol::openGL::FLAG_ALPHA_TEST, GL_ALPHA_TEST},
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{(uint32_t)ewol::openGL::FLAG_FOG, GL_FOG}
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#endif
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//{(uint32_t)ewol::openGL::FLAG_, GL_}
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};
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static int32_t basicFlagCount = sizeof(basicFlag) / sizeof(correspondenceTable_ts);
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void ewol::openGL::enable(enum ewol::openGL::openGlFlags _flagID) {
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#ifdef DIRECT_MODE
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for (int32_t iii=0; iii<basicFlagCount ; iii++) {
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if ( basicFlag[iii].curentFlag == (uint32_t)_flagID ) {
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glEnable(basicFlag[iii].OGlFlag);
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}
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}
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# else
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//EWOL_DEBUG("Enable FLAGS = " << l_flagsMustBeSet);
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l_flagsMustBeSet |= (uint32_t)_flagID;
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//EWOL_DEBUG(" == >" << l_flagsMustBeSet);
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#endif
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}
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void ewol::openGL::disable(enum ewol::openGL::openGlFlags _flagID) {
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#ifdef DIRECT_MODE
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for (int32_t iii=0; iii<basicFlagCount ; iii++) {
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if ( basicFlag[iii].curentFlag == (uint32_t)_flagID ) {
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glDisable(basicFlag[iii].OGlFlag);
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}
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}
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# else
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//EWOL_DEBUG("Disable FLAGS = " << l_flagsMustBeSet);
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l_flagsMustBeSet &= ~((uint32_t)_flagID);
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//EWOL_DEBUG(" == >" << l_flagsMustBeSet);
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#endif
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}
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void ewol::openGL::updateAllFlags(void) {
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#ifdef DIRECT_MODE
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return;
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#endif
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// check if fhags has change :
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if (l_flagsMustBeSet == l_flagsCurrent ) {
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return;
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}
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//EWOL_DEBUG(" == >" << l_flagsMustBeSet);
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for (int32_t iii=0; iii<basicFlagCount ; iii++) {
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uint32_t CurrentFlag = basicFlag[iii].curentFlag;
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if ( (l_flagsMustBeSet&CurrentFlag)!=(l_flagsCurrent&CurrentFlag) ) {
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if ( (l_flagsMustBeSet&CurrentFlag) != 0) {
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glEnable(basicFlag[iii].OGlFlag);
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} else {
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glDisable(basicFlag[iii].OGlFlag);
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}
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}
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}
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l_flagsCurrent = l_flagsMustBeSet;
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}
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void ewol::openGL::activeTexture(uint32_t _flagID) {
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if (l_programId >= 0) {
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glActiveTexture(_flagID);
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}
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}
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void ewol::openGL::desActiveTexture(uint32_t _flagID) {
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if (l_programId >= 0) {
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}
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}
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void ewol::openGL::drawArrays(uint32_t _mode, int32_t _first, int32_t _count) {
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if (l_programId >= 0) {
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updateAllFlags();
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glDrawArrays(_mode, _first, _count);
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}
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}
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void ewol::openGL::drawElements(uint32_t _mode, const std::vector<uint32_t>& _indices) {
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if (l_programId >= 0) {
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updateAllFlags();
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//EWOL_DEBUG("Request draw of " << indices.size() << "elements");
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glDrawElements(_mode, _indices.size(), GL_UNSIGNED_INT, &_indices[0]);
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}
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}
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void ewol::openGL::drawElements16(uint32_t _mode, const std::vector<uint16_t>& _indices) {
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if (l_programId >= 0) {
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updateAllFlags();
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glDrawElements(_mode, _indices.size(), GL_UNSIGNED_SHORT, &_indices[0]);
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}
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}
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void ewol::openGL::drawElements8(uint32_t _mode, const std::vector<uint8_t>& _indices) {
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if (l_programId >= 0) {
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updateAllFlags();
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glDrawElements(_mode, _indices.size(), GL_UNSIGNED_BYTE, &_indices[0]);
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}
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}
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void ewol::openGL::useProgram(int32_t _id) {
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//EWOL_DEBUG("USE prog : " << id);
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#if 1
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// note : In normal openGL case, the system might call with the program ID and at the end with 0,
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// here, we wrap this use to prevent over call of glUseProgram == > then we set -1 when the
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// user no more use this program, and just stop grnerating. (chen 0 == > this is an errored program ...
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if (-1 == _id) {
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// not used == > because it is unneded
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return;
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}
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if (l_programId != _id) {
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l_programId = _id;
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glUseProgram(l_programId);
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}
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#else
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if (-1 == _id) {
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glUseProgram(0);
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} else {
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l_programId = _id;
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glUseProgram(_id);
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}
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#endif
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}
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