| #include "GL2Encoder.h" |
| #include <assert.h> |
| |
| |
| static GLubyte *gVendorString= (GLubyte *) "Android"; |
| static GLubyte *gRendererString= (GLubyte *) "Android HW-GLES 2.0"; |
| static GLubyte *gVersionString= (GLubyte *) "OpenGL ES 2.0"; |
| static GLubyte *gExtensionsString= (GLubyte *) ""; // no extensions at this point; |
| |
| GL2Encoder::GL2Encoder(IOStream *stream) : gl2_encoder_context_t(stream) |
| { |
| m_initialized = false; |
| m_state = NULL; |
| m_num_compressedTextureFormats = 0; |
| m_compressedTextureFormats = NULL; |
| //overrides |
| m_glFlush_enc = set_glFlush(s_glFlush); |
| m_glPixelStorei_enc = set_glPixelStorei(s_glPixelStorei); |
| m_glGetString_enc = set_glGetString(s_glGetString); |
| m_glBindBuffer_enc = set_glBindBuffer(s_glBindBuffer); |
| m_glDrawArrays_enc = set_glDrawArrays(s_glDrawArrays); |
| m_glDrawElements_enc = set_glDrawElements(s_glDrawElements); |
| m_glGetIntegerv_enc = set_glGetIntegerv(s_glGetIntegerv); |
| m_glGetFloatv_enc = set_glGetFloatv(s_glGetFloatv); |
| m_glGetBooleanv_enc = set_glGetBooleanv(s_glGetBooleanv); |
| m_glVertexAttribPointer_enc = set_glVertexAttribPointer(s_glVertexAtrribPointer); |
| m_glEnableVertexAttribArray_enc = set_glEnableVertexAttribArray(s_glEnableVertexAttribArray); |
| m_glDisableVertexAttribArray_enc = set_glDisableVertexAttribArray(s_glDisableVertexAttribArray); |
| m_glGetVertexAttribiv_enc = set_glGetVertexAttribiv(s_glGetVertexAttribiv); |
| m_glGetVertexAttribfv_enc = set_glGetVertexAttribfv(s_glGetVertexAttribfv); |
| m_glGetVertexAttribPointerv = set_glGetVertexAttribPointerv(s_glGetVertexAttribPointerv); |
| set_glShaderSource(s_glShaderSource); |
| set_glFinish(s_glFinish); |
| } |
| |
| GL2Encoder::~GL2Encoder() |
| { |
| delete m_compressedTextureFormats; |
| } |
| |
| void GL2Encoder::s_glFlush(void *self) |
| { |
| GL2Encoder *ctx = (GL2Encoder *) self; |
| ctx->m_glFlush_enc(self); |
| ctx->m_stream->flush(); |
| } |
| |
| const GLubyte *GL2Encoder::s_glGetString(void *self, GLenum name) |
| { |
| GLubyte *retval = (GLubyte *) ""; |
| switch(name) { |
| case GL_VENDOR: |
| retval = gVendorString; |
| break; |
| case GL_RENDERER: |
| retval = gRendererString; |
| break; |
| case GL_VERSION: |
| retval = gVersionString; |
| break; |
| case GL_EXTENSIONS: |
| retval = gExtensionsString; |
| break; |
| } |
| return retval; |
| } |
| |
| void GL2Encoder::s_glPixelStorei(void *self, GLenum param, GLint value) |
| { |
| GL2Encoder *ctx = (GL2Encoder *)self; |
| ctx->m_glPixelStorei_enc(ctx, param, value); |
| assert(ctx->m_state != NULL); |
| ctx->m_state->setPixelStore(param, value); |
| } |
| |
| |
| void GL2Encoder::s_glBindBuffer(void *self, GLenum target, GLuint id) |
| { |
| GL2Encoder *ctx = (GL2Encoder *) self; |
| assert(ctx->m_state != NULL); |
| ctx->m_state->bindBuffer(target, id); |
| // TODO set error state if needed; |
| ctx->m_glBindBuffer_enc(self, target, id); |
| } |
| |
| void GL2Encoder::s_glVertexAtrribPointer(void *self, GLuint indx, GLint size, GLenum type, GLboolean normalized, GLsizei stride, const GLvoid * ptr) |
| { |
| GL2Encoder *ctx = (GL2Encoder *)self; |
| assert(ctx->m_state != NULL); |
| ctx->m_state->setState(indx, size, type, normalized, stride, ptr); |
| } |
| |
| void GL2Encoder::s_glGetIntegerv(void *self, GLenum param, GLint *params) |
| { |
| GL2Encoder *ctx = (GL2Encoder *) self; |
| assert(ctx->m_state != NULL); |
| if (param == GL_NUM_SHADER_BINARY_FORMATS) { |
| *params = 0; |
| } else if (param == GL_SHADER_BINARY_FORMATS) { |
| // do nothing |
| } else if (param == GL_COMPRESSED_TEXTURE_FORMATS) { |
| GLint *compressedTextureFormats = ctx->getCompressedTextureFormats(); |
| if (ctx->m_num_compressedTextureFormats > 0 && compressedTextureFormats != NULL) { |
| memcpy(params, compressedTextureFormats, ctx->m_num_compressedTextureFormats * sizeof(GLint)); |
| } |
| } else if (!ctx->m_state->getClientStateParameter<GLint>(param, params)) { |
| ctx->m_glGetIntegerv_enc(self, param, params); |
| } |
| } |
| |
| |
| void GL2Encoder::s_glGetFloatv(void *self, GLenum param, GLfloat *ptr) |
| { |
| GL2Encoder *ctx = (GL2Encoder *)self; |
| assert(ctx->m_state != NULL); |
| if (param == GL_NUM_SHADER_BINARY_FORMATS) { |
| *ptr = 0; |
| } else if (param == GL_SHADER_BINARY_FORMATS) { |
| // do nothing; |
| } else if (param == GL_COMPRESSED_TEXTURE_FORMATS) { |
| GLint * compressedTextureFormats = ctx->getCompressedTextureFormats(); |
| if (ctx->m_num_compressedTextureFormats > 0 && compressedTextureFormats != NULL) { |
| for (int i = 0; i < ctx->m_num_compressedTextureFormats; i++) { |
| ptr[i] = (GLfloat) compressedTextureFormats[i]; |
| } |
| } |
| } |
| else if (!ctx->m_state->getClientStateParameter<GLfloat>(param,ptr)) { |
| ctx->m_glGetFloatv_enc(self, param, ptr); |
| } |
| } |
| |
| |
| void GL2Encoder::s_glGetBooleanv(void *self, GLenum param, GLboolean *ptr) |
| { |
| GL2Encoder *ctx = (GL2Encoder *)self; |
| assert(ctx->m_state != NULL); |
| if (param == GL_COMPRESSED_TEXTURE_FORMATS) { |
| // ignore the command, although we should have generated a GLerror; |
| } |
| else if (!ctx->m_state->getClientStateParameter<GLboolean>(param,ptr)) { |
| ctx->m_glGetBooleanv_enc(self, param, ptr); |
| } |
| } |
| |
| |
| void GL2Encoder::s_glEnableVertexAttribArray(void *self, GLuint index) |
| { |
| GL2Encoder *ctx = (GL2Encoder *)self; |
| assert(ctx->m_state); |
| ctx->m_state->enable(index, 1); |
| } |
| |
| void GL2Encoder::s_glDisableVertexAttribArray(void *self, GLuint index) |
| { |
| GL2Encoder *ctx = (GL2Encoder *)self; |
| assert(ctx->m_state); |
| ctx->m_state->enable(index, 0); |
| } |
| |
| |
| void GL2Encoder::s_glGetVertexAttribiv(void *self, GLuint index, GLenum pname, GLint *params) |
| { |
| GL2Encoder *ctx = (GL2Encoder *)self; |
| assert(ctx->m_state); |
| |
| if (!ctx->m_state->getVertexAttribParameter<GLint>(index, pname, params)) { |
| ctx->m_glGetVertexAttribiv_enc(self, index, pname, params); |
| } |
| } |
| |
| void GL2Encoder::s_glGetVertexAttribfv(void *self, GLuint index, GLenum pname, GLfloat *params) |
| { |
| GL2Encoder *ctx = (GL2Encoder *)self; |
| assert(ctx->m_state); |
| |
| if (!ctx->m_state->getVertexAttribParameter<GLfloat>(index, pname, params)) { |
| ctx->m_glGetVertexAttribfv_enc(self, index, pname, params); |
| } |
| } |
| |
| void GL2Encoder::s_glGetVertexAttribPointerv(void *self, GLuint index, GLenum pname, GLvoid **pointer) |
| { |
| GL2Encoder *ctx = (GL2Encoder *)self; |
| if (ctx->m_state == NULL) return; |
| |
| const GLClientState::VertexAttribState *va_state = ctx->m_state->getState(index); |
| if (va_state != NULL) { |
| *pointer = va_state->data; |
| } |
| } |
| |
| |
| void GL2Encoder::sendVertexAttributes(GLint first, GLsizei count) |
| { |
| assert(m_state); |
| |
| for (int i = 0; i < m_state->nLocations(); i++) { |
| bool enableDirty; |
| const GLClientState::VertexAttribState *state = m_state->getStateAndEnableDirty(i, &enableDirty); |
| |
| if (!state) { |
| continue; |
| } |
| |
| if (!enableDirty && !state->enabled) { |
| continue; |
| } |
| |
| |
| if (state->enabled) { |
| m_glEnableVertexAttribArray_enc(this, i); |
| |
| unsigned int datalen = state->elementSize * count; |
| int stride = state->stride == 0 ? state->elementSize : state->stride; |
| int firstIndex = stride * first; |
| |
| if (state->bufferObject == 0) { |
| this->glVertexAttribPointerData(this, i, state->size, state->type, state->normalized, state->stride, |
| (unsigned char *)state->data + firstIndex, datalen); |
| } else { |
| this->glBindBuffer(this, GL_ARRAY_BUFFER, state->bufferObject); |
| this->glVertexAttribPointerOffset(this, i, state->size, state->type, state->normalized, state->stride, |
| (GLuint) state->data + firstIndex); |
| } |
| } else { |
| this->m_glDisableVertexAttribArray_enc(this, i); |
| } |
| } |
| } |
| |
| void GL2Encoder::s_glDrawArrays(void *self, GLenum mode, GLint first, GLsizei count) |
| { |
| GL2Encoder *ctx = (GL2Encoder *)self; |
| ctx->sendVertexAttributes(first, count); |
| ctx->m_glDrawArrays_enc(ctx, mode, 0, count); |
| } |
| |
| |
| void GL2Encoder::s_glDrawElements(void *self, GLenum mode, GLsizei count, GLenum type, const void *indices) |
| { |
| |
| GL2Encoder *ctx = (GL2Encoder *)self; |
| assert(ctx->m_state != NULL); |
| |
| bool has_immediate_arrays = false; |
| bool has_indirect_arrays = false; |
| int nLocations = ctx->m_state->nLocations(); |
| |
| for (int i = 0; i < nLocations; i++) { |
| const GLClientState::VertexAttribState *state = ctx->m_state->getState(i); |
| if (state->enabled) { |
| if (state->bufferObject != 0) { |
| has_indirect_arrays = true; |
| } else { |
| has_immediate_arrays = true; |
| } |
| } |
| } |
| |
| if (!has_immediate_arrays && !has_indirect_arrays) { |
| LOGE("glDrawElements: no data bound to the command - ignoring\n"); |
| return; |
| } |
| |
| if (ctx->m_state->currentIndexVbo() != 0) { |
| if (!has_immediate_arrays) { |
| ctx->sendVertexAttributes(0, count); |
| ctx->glDrawElementsOffset(ctx, mode, count, type, (GLuint)indices); |
| } else { |
| LOGE("glDrawElements: indirect index arrays, with immidate-mode data array is not supported\n"); |
| } |
| } else { |
| void *adjustedIndices = (void*)indices; |
| int minIndex = 0, maxIndex = 0; |
| |
| switch(type) { |
| case GL_BYTE: |
| case GL_UNSIGNED_BYTE: |
| GLUtils::minmax<unsigned char>((unsigned char *)indices, count, &minIndex, &maxIndex); |
| if (minIndex != 0) { |
| adjustedIndices = ctx->m_fixedBuffer.alloc(glSizeof(type) * count); |
| GLUtils::shiftIndices<unsigned char>((unsigned char *)indices, |
| (unsigned char *)adjustedIndices, |
| count, -minIndex); |
| } |
| break; |
| case GL_SHORT: |
| case GL_UNSIGNED_SHORT: |
| GLUtils::minmax<unsigned short>((unsigned short *)indices, count, &minIndex, &maxIndex); |
| if (minIndex != 0) { |
| adjustedIndices = ctx->m_fixedBuffer.alloc(glSizeof(type) * count); |
| GLUtils::shiftIndices<unsigned short>((unsigned short *)indices, |
| (unsigned short *)adjustedIndices, |
| count, -minIndex); |
| } |
| break; |
| default: |
| LOGE("unsupported index buffer type %d\n", type); |
| } |
| if (has_indirect_arrays || 1) { |
| ctx->sendVertexAttributes(minIndex, maxIndex - minIndex + 1); |
| ctx->glDrawElementsData(ctx, mode, count, type, adjustedIndices, |
| count * glSizeof(type)); |
| // XXX - OPTIMIZATION (see the other else branch) should be implemented |
| if(!has_indirect_arrays) { |
| //LOGD("unoptimized drawelements !!!\n"); |
| } |
| } else { |
| // we are all direct arrays and immidate mode index array - |
| // rebuild the arrays and the index array; |
| LOGE("glDrawElements: direct index & direct buffer data - will be implemented in later versions;\n"); |
| } |
| } |
| } |
| |
| |
| GLint * GL2Encoder::getCompressedTextureFormats() |
| { |
| if (m_compressedTextureFormats == NULL) { |
| this->glGetIntegerv(this, GL_NUM_COMPRESSED_TEXTURE_FORMATS, |
| &m_num_compressedTextureFormats); |
| if (m_num_compressedTextureFormats > 0) { |
| // get number of texture formats; |
| m_compressedTextureFormats = new GLint[m_num_compressedTextureFormats]; |
| this->glGetCompressedTextureFormats(this, m_num_compressedTextureFormats, m_compressedTextureFormats); |
| } |
| } |
| return m_compressedTextureFormats; |
| } |
| |
| void GL2Encoder::s_glShaderSource(void *self, GLuint shader, GLsizei count, const GLchar **string, const GLint *length) |
| { |
| int len = glUtilsCalcShaderSourceLen((char**)string, (GLint*)length, count); |
| char *str = new char[len + 1]; |
| glUtilsPackStrings(str, (char**)string, (GLint*)length, count); |
| |
| GL2Encoder *ctx = (GL2Encoder *)self; |
| ctx->glShaderString(ctx, shader, str, len + 1); |
| delete str; |
| } |
| |
| void GL2Encoder::s_glFinish(void *self) |
| { |
| GL2Encoder *ctx = (GL2Encoder *)self; |
| ctx->glFinishRoundTrip(self); |
| } |
| |