--- /dev/null
+/*
+* Copyright (C) 2011 The Android Open Source Project
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+#include "GLClientState.h"
+#include "ErrorLog.h"
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include "glUtils.h"
+#include <cutils/log.h>
+
+#ifndef MAX
+#define MAX(a, b) ((a) < (b) ? (b) : (a))
+#endif
+
+GLClientState::GLClientState(int nLocations)
+{
+ if (nLocations < LAST_LOCATION) {
+ nLocations = LAST_LOCATION;
+ }
+ m_nLocations = nLocations;
+ m_states = new VertexAttribState[m_nLocations];
+ for (int i = 0; i < m_nLocations; i++) {
+ m_states[i].enabled = 0;
+ m_states[i].enableDirty = false;
+ m_states[i].data = 0;
+ }
+ m_currentArrayVbo = 0;
+ m_currentIndexVbo = 0;
+ // init gl constans;
+ m_states[VERTEX_LOCATION].glConst = GL_VERTEX_ARRAY;
+ m_states[NORMAL_LOCATION].glConst = GL_NORMAL_ARRAY;
+ m_states[COLOR_LOCATION].glConst = GL_COLOR_ARRAY;
+ m_states[POINTSIZE_LOCATION].glConst = GL_POINT_SIZE_ARRAY_OES;
+ m_states[TEXCOORD0_LOCATION].glConst = GL_TEXTURE_COORD_ARRAY;
+ m_states[TEXCOORD1_LOCATION].glConst = GL_TEXTURE_COORD_ARRAY;
+ m_states[TEXCOORD2_LOCATION].glConst = GL_TEXTURE_COORD_ARRAY;
+ m_states[TEXCOORD3_LOCATION].glConst = GL_TEXTURE_COORD_ARRAY;
+ m_states[TEXCOORD4_LOCATION].glConst = GL_TEXTURE_COORD_ARRAY;
+ m_states[TEXCOORD5_LOCATION].glConst = GL_TEXTURE_COORD_ARRAY;
+ m_states[TEXCOORD6_LOCATION].glConst = GL_TEXTURE_COORD_ARRAY;
+ m_states[TEXCOORD7_LOCATION].glConst = GL_TEXTURE_COORD_ARRAY;
+ m_states[MATRIXINDEX_LOCATION].glConst = GL_MATRIX_INDEX_ARRAY_OES;
+ m_states[WEIGHT_LOCATION].glConst = GL_WEIGHT_ARRAY_OES;
+ m_activeTexture = 0;
+ m_currentProgram = 0;
+
+ m_pixelStore.unpack_alignment = 4;
+ m_pixelStore.pack_alignment = 4;
+
+ memset(m_tex.unit, 0, sizeof(m_tex.unit));
+ m_tex.activeUnit = &m_tex.unit[0];
+ m_tex.textures = NULL;
+ m_tex.numTextures = 0;
+ m_tex.allocTextures = 0;
+
+ m_maxVertexAttribsDirty = true;
+}
+
+GLClientState::~GLClientState()
+{
+ delete m_states;
+}
+
+void GLClientState::enable(int location, int state)
+{
+ if (!validLocation(location)) {
+ return;
+ }
+
+ m_states[location].enableDirty |= (state != m_states[location].enabled);
+ m_states[location].enabled = state;
+}
+
+void GLClientState::setState(int location, int size, GLenum type, GLboolean normalized, GLsizei stride, const void *data)
+{
+ if (!validLocation(location)) {
+ return;
+ }
+ m_states[location].size = size;
+ m_states[location].type = type;
+ m_states[location].stride = stride;
+ m_states[location].data = (void*)data;
+ m_states[location].bufferObject = m_currentArrayVbo;
+ m_states[location].elementSize = size ? (glSizeof(type) * size) : 0;
+ m_states[location].normalized = normalized;
+}
+
+void GLClientState::setBufferObject(int location, GLuint id)
+{
+ if (!validLocation(location)) {
+ return;
+ }
+
+ m_states[location].bufferObject = id;
+}
+
+const GLClientState::VertexAttribState * GLClientState::getState(int location)
+{
+ if (!validLocation(location)) {
+ return NULL;
+ }
+ return & m_states[location];
+}
+
+const GLClientState::VertexAttribState * GLClientState::getStateAndEnableDirty(int location, bool *enableChanged)
+{
+ if (!validLocation(location)) {
+ return NULL;
+ }
+
+ if (enableChanged) {
+ *enableChanged = m_states[location].enableDirty;
+ }
+
+ m_states[location].enableDirty = false;
+ return & m_states[location];
+}
+
+int GLClientState::getLocation(GLenum loc)
+{
+ int retval;
+
+ switch(loc) {
+ case GL_VERTEX_ARRAY:
+ retval = int(VERTEX_LOCATION);
+ break;
+ case GL_NORMAL_ARRAY:
+ retval = int(NORMAL_LOCATION);
+ break;
+ case GL_COLOR_ARRAY:
+ retval = int(COLOR_LOCATION);
+ break;
+ case GL_POINT_SIZE_ARRAY_OES:
+ retval = int(POINTSIZE_LOCATION);
+ break;
+ case GL_TEXTURE_COORD_ARRAY:
+ retval = int (TEXCOORD0_LOCATION + m_activeTexture);
+ break;
+ case GL_MATRIX_INDEX_ARRAY_OES:
+ retval = int (MATRIXINDEX_LOCATION);
+ break;
+ case GL_WEIGHT_ARRAY_OES:
+ retval = int (WEIGHT_LOCATION);
+ break;
+ default:
+ retval = loc;
+ }
+ return retval;
+}
+
+void GLClientState::getClientStatePointer(GLenum pname, GLvoid** params)
+{
+ const GLClientState::VertexAttribState *state = NULL;
+ switch (pname) {
+ case GL_VERTEX_ARRAY_POINTER: {
+ state = getState(GLClientState::VERTEX_LOCATION);
+ break;
+ }
+ case GL_NORMAL_ARRAY_POINTER: {
+ state = getState(GLClientState::NORMAL_LOCATION);
+ break;
+ }
+ case GL_COLOR_ARRAY_POINTER: {
+ state = getState(GLClientState::COLOR_LOCATION);
+ break;
+ }
+ case GL_TEXTURE_COORD_ARRAY_POINTER: {
+ state = getState(getActiveTexture() + GLClientState::TEXCOORD0_LOCATION);
+ break;
+ }
+ case GL_POINT_SIZE_ARRAY_POINTER_OES: {
+ state = getState(GLClientState::POINTSIZE_LOCATION);
+ break;
+ }
+ case GL_MATRIX_INDEX_ARRAY_POINTER_OES: {
+ state = getState(GLClientState::MATRIXINDEX_LOCATION);
+ break;
+ }
+ case GL_WEIGHT_ARRAY_POINTER_OES: {
+ state = getState(GLClientState::WEIGHT_LOCATION);
+ break;
+ }
+ }
+ if (state && params)
+ *params = state->data;
+}
+
+int GLClientState::setPixelStore(GLenum param, GLint value)
+{
+ int retval = 0;
+ switch(param) {
+ case GL_UNPACK_ALIGNMENT:
+ if (value == 1 || value == 2 || value == 4 || value == 8) {
+ m_pixelStore.unpack_alignment = value;
+ } else {
+ retval = GL_INVALID_VALUE;
+ }
+ break;
+ case GL_PACK_ALIGNMENT:
+ if (value == 1 || value == 2 || value == 4 || value == 8) {
+ m_pixelStore.pack_alignment = value;
+ } else {
+ retval = GL_INVALID_VALUE;
+ }
+ break;
+ default:
+ retval = GL_INVALID_ENUM;
+ }
+ return retval;
+}
+
+
+
+
+size_t GLClientState::pixelDataSize(GLsizei width, GLsizei height, GLenum format, GLenum type, int pack) const
+{
+ if (width <= 0 || height <= 0) return 0;
+
+ int pixelsize = glUtilsPixelBitSize(format, type) >> 3;
+
+ int alignment = pack ? m_pixelStore.pack_alignment : m_pixelStore.unpack_alignment;
+
+ if (pixelsize == 0 ) {
+ ERR("unknown pixel size: width: %d height: %d format: %d type: %d pack: %d align: %d\n",
+ width, height, format, type, pack, alignment);
+ }
+ size_t linesize = pixelsize * width;
+ size_t aligned_linesize = int(linesize / alignment) * alignment;
+ if (aligned_linesize < linesize) {
+ aligned_linesize += alignment;
+ }
+ return aligned_linesize * height;
+}
+
+GLenum GLClientState::setActiveTextureUnit(GLenum texture)
+{
+ GLuint unit = texture - GL_TEXTURE0;
+ if (unit >= MAX_TEXTURE_UNITS) {
+ return GL_INVALID_ENUM;
+ }
+ m_tex.activeUnit = &m_tex.unit[unit];
+ return GL_NO_ERROR;
+}
+
+GLenum GLClientState::getActiveTextureUnit() const
+{
+ return GL_TEXTURE0 + (m_tex.activeUnit - &m_tex.unit[0]);
+}
+
+void GLClientState::enableTextureTarget(GLenum target)
+{
+ switch (target) {
+ case GL_TEXTURE_2D:
+ m_tex.activeUnit->enables |= (1u << TEXTURE_2D);
+ break;
+ case GL_TEXTURE_EXTERNAL_OES:
+ m_tex.activeUnit->enables |= (1u << TEXTURE_EXTERNAL);
+ break;
+ }
+}
+
+void GLClientState::disableTextureTarget(GLenum target)
+{
+ switch (target) {
+ case GL_TEXTURE_2D:
+ m_tex.activeUnit->enables &= ~(1u << TEXTURE_2D);
+ break;
+ case GL_TEXTURE_EXTERNAL_OES:
+ m_tex.activeUnit->enables &= ~(1u << TEXTURE_EXTERNAL);
+ break;
+ }
+}
+
+GLenum GLClientState::getPriorityEnabledTarget(GLenum allDisabled) const
+{
+ unsigned int enables = m_tex.activeUnit->enables;
+ if (enables & (1u << TEXTURE_EXTERNAL)) {
+ return GL_TEXTURE_EXTERNAL_OES;
+ } else if (enables & (1u << TEXTURE_2D)) {
+ return GL_TEXTURE_2D;
+ } else {
+ return allDisabled;
+ }
+}
+
+int GLClientState::compareTexId(const void* pid, const void* prec)
+{
+ const GLuint* id = (const GLuint*)pid;
+ const TextureRec* rec = (const TextureRec*)prec;
+ return (GLint)(*id) - (GLint)rec->id;
+}
+
+GLenum GLClientState::bindTexture(GLenum target, GLuint texture,
+ GLboolean* firstUse)
+{
+ GLboolean first = GL_FALSE;
+ TextureRec* texrec = NULL;
+ if (texture != 0) {
+ if (m_tex.textures) {
+ texrec = (TextureRec*)bsearch(&texture, m_tex.textures,
+ m_tex.numTextures, sizeof(TextureRec), compareTexId);
+ }
+ if (!texrec) {
+ if (!(texrec = addTextureRec(texture, target))) {
+ return GL_OUT_OF_MEMORY;
+ }
+ first = GL_TRUE;
+ }
+ if (target != texrec->target) {
+ return GL_INVALID_OPERATION;
+ }
+ }
+
+ switch (target) {
+ case GL_TEXTURE_2D:
+ m_tex.activeUnit->texture[TEXTURE_2D] = texture;
+ break;
+ case GL_TEXTURE_EXTERNAL_OES:
+ m_tex.activeUnit->texture[TEXTURE_EXTERNAL] = texture;
+ break;
+ }
+
+ if (firstUse) {
+ *firstUse = first;
+ }
+
+ return GL_NO_ERROR;
+}
+
+GLClientState::TextureRec* GLClientState::addTextureRec(GLuint id,
+ GLenum target)
+{
+ if (m_tex.numTextures == m_tex.allocTextures) {
+ const GLuint MAX_TEXTURES = 0xFFFFFFFFu;
+
+ GLuint newAlloc;
+ if (MAX_TEXTURES - m_tex.allocTextures >= m_tex.allocTextures) {
+ newAlloc = MAX(4, 2 * m_tex.allocTextures);
+ } else {
+ if (m_tex.allocTextures == MAX_TEXTURES) {
+ return NULL;
+ }
+ newAlloc = MAX_TEXTURES;
+ }
+
+ TextureRec* newTextures = (TextureRec*)realloc(m_tex.textures,
+ newAlloc * sizeof(TextureRec));
+ if (!newTextures) {
+ return NULL;
+ }
+
+ m_tex.textures = newTextures;
+ m_tex.allocTextures = newAlloc;
+ }
+
+ TextureRec* tex = m_tex.textures + m_tex.numTextures;
+ TextureRec* prev = tex - 1;
+ while (tex != m_tex.textures && id < prev->id) {
+ *tex-- = *prev--;
+ }
+ tex->id = id;
+ tex->target = target;
+ m_tex.numTextures++;
+
+ return tex;
+}
+
+GLuint GLClientState::getBoundTexture(GLenum target) const
+{
+ switch (target) {
+ case GL_TEXTURE_2D:
+ return m_tex.activeUnit->texture[TEXTURE_2D];
+ case GL_TEXTURE_EXTERNAL_OES:
+ return m_tex.activeUnit->texture[TEXTURE_EXTERNAL];
+ default:
+ return 0;
+ }
+}
+
+void GLClientState::deleteTextures(GLsizei n, const GLuint* textures)
+{
+ // Updating the textures array could be made more efficient when deleting
+ // several textures:
+ // - compacting the array could be done in a single pass once the deleted
+ // textures are marked, or
+ // - could swap deleted textures to the end and re-sort.
+ TextureRec* texrec;
+ for (const GLuint* texture = textures; texture != textures + n; texture++) {
+ texrec = (TextureRec*)bsearch(texture, m_tex.textures,
+ m_tex.numTextures, sizeof(TextureRec), compareTexId);
+ if (texrec) {
+ const TextureRec* end = m_tex.textures + m_tex.numTextures;
+ memmove(texrec, texrec + 1,
+ (end - texrec - 1) * sizeof(TextureRec));
+ m_tex.numTextures--;
+
+ for (TextureUnit* unit = m_tex.unit;
+ unit != m_tex.unit + MAX_TEXTURE_UNITS;
+ unit++)
+ {
+ if (unit->texture[TEXTURE_2D] == *texture) {
+ unit->texture[TEXTURE_2D] = 0;
+ } else if (unit->texture[TEXTURE_EXTERNAL] == *texture) {
+ unit->texture[TEXTURE_EXTERNAL] = 0;
+ }
+ }
+ }
+ }
+}
Code Review / iec.git / blobdiff