void init_select() {
/*
Initialize matrix and array vector for a select_Draw*
*/
GLfloat tmp[16];
gl4es_glGetFloatv(GL_PROJECTION_MATRIX, tmp);
matrix_transpose(tmp, projection);
gl4es_glGetFloatv(GL_MODELVIEW_MATRIX, tmp);
matrix_transpose(tmp, modelview);
}
void gl4es_glPushAttrib(GLbitfield mask) {
//printf("glPushAttrib(0x%04X)\n", mask);
noerrorShim();
if ((glstate->list.compiling || glstate->gl_batch) && glstate->list.active) {
NewStage(glstate->list.active, STAGE_PUSH);
glstate->list.active->pushattribute = mask;
return;
}
if (glstate->stack == NULL) {
glstate->stack = (glstack_t *)malloc(STACK_SIZE * sizeof(glstack_t));
glstate->stack->len = 0;
glstate->stack->cap = STACK_SIZE;
} else if (glstate->stack->len == glstate->stack->cap) {
glstate->stack->cap += STACK_SIZE;
glstate->stack = (glstack_t *)realloc(glstate->stack, glstate->stack->cap * sizeof(glstack_t));
}
glstack_t *cur = glstate->stack + glstate->stack->len;
cur->mask = mask;
cur->clip_planes_enabled = NULL;
cur->clip_planes = NULL;
cur->lights_enabled = NULL;
cur->lights = NULL;
cur->materials = NULL;
// TODO: GL_ACCUM_BUFFER_BIT
// TODO: will tracking these myself be much faster than glGet?
if (mask & GL_COLOR_BUFFER_BIT) {
cur->alpha_test = gl4es_glIsEnabled(GL_ALPHA_TEST);
gl4es_glGetIntegerv(GL_ALPHA_TEST_FUNC, &cur->alpha_test_func);
gl4es_glGetFloatv(GL_ALPHA_TEST_REF, &cur->alpha_test_ref);
cur->blend = gl4es_glIsEnabled(GL_BLEND);
gl4es_glGetIntegerv(GL_BLEND_SRC, &cur->blend_src_func);
gl4es_glGetIntegerv(GL_BLEND_DST, &cur->blend_dst_func);
cur->dither = gl4es_glIsEnabled(GL_DITHER);
cur->color_logic_op = gl4es_glIsEnabled(GL_COLOR_LOGIC_OP);
gl4es_glGetIntegerv(GL_LOGIC_OP_MODE, &cur->logic_op);
gl4es_glGetFloatv(GL_COLOR_CLEAR_VALUE, cur->clear_color);
gl4es_glGetFloatv(GL_COLOR_WRITEMASK, cur->color_mask);
}
if (mask & GL_CURRENT_BIT) {
gl4es_glGetFloatv(GL_CURRENT_COLOR, cur->color);
gl4es_glGetFloatv(GL_CURRENT_NORMAL, cur->normal);
gl4es_glGetFloatv(GL_CURRENT_TEXTURE_COORDS, cur->tex);
}
if (mask & GL_DEPTH_BUFFER_BIT) {
cur->depth_test = gl4es_glIsEnabled(GL_DEPTH_TEST);
gl4es_glGetIntegerv(GL_DEPTH_FUNC, &cur->depth_func);
gl4es_glGetFloatv(GL_DEPTH_CLEAR_VALUE, &cur->clear_depth);
gl4es_glGetIntegerv(GL_DEPTH_WRITEMASK, &cur->depth_mask);
}
if (mask & GL_ENABLE_BIT) {
int i;
GLint max_clip_planes;
cur->alpha_test = gl4es_glIsEnabled(GL_ALPHA_TEST);
cur->autonormal = gl4es_glIsEnabled(GL_AUTO_NORMAL);
cur->blend = gl4es_glIsEnabled(GL_BLEND);
gl4es_glGetIntegerv(GL_MAX_CLIP_PLANES, &max_clip_planes);
cur->clip_planes_enabled = (GLboolean *)malloc(max_clip_planes * sizeof(GLboolean));
for (i = 0; i < max_clip_planes; i++) {
*(cur->clip_planes_enabled + i) = gl4es_glIsEnabled(GL_CLIP_PLANE0 + i);
}
cur->colormaterial = gl4es_glIsEnabled(GL_COLOR_MATERIAL);
cur->cull_face = gl4es_glIsEnabled(GL_CULL_FACE);
cur->depth_test = gl4es_glIsEnabled(GL_DEPTH_TEST);
cur->dither = gl4es_glIsEnabled(GL_DITHER);
cur->fog = gl4es_glIsEnabled(GL_FOG);
cur->lights_enabled = (GLboolean *)malloc(hardext.maxlights * sizeof(GLboolean));
for (i = 0; i < hardext.maxlights; i++) {
*(cur->lights_enabled + i) = gl4es_glIsEnabled(GL_LIGHT0 + i);
}
cur->lighting = gl4es_glIsEnabled(GL_LIGHTING);
cur->line_smooth = gl4es_glIsEnabled(GL_LINE_SMOOTH);
cur->line_stipple = gl4es_glIsEnabled(GL_LINE_STIPPLE);
cur->color_logic_op = gl4es_glIsEnabled(GL_COLOR_LOGIC_OP);
//TODO: GL_INDEX_LOGIC_OP
//TODO: GL_MAP1_x
//TODO: GL_MAP2_x
cur->multisample = gl4es_glIsEnabled(GL_MULTISAMPLE);
cur->normalize = gl4es_glIsEnabled(GL_NORMALIZE);
cur->point_smooth = gl4es_glIsEnabled(GL_POINT_SMOOTH);
//TODO: GL_POLYGON_OFFSET_LINE
cur->polygon_offset_fill = gl4es_glIsEnabled(GL_POLYGON_OFFSET_FILL);
//TODO: GL_POLYGON_OFFSET_POINT
//TODO: GL_POLYGON_SMOOTH
//TODO: GL_POLYGON_STIPPLE
cur->sample_alpha_to_coverage = gl4es_glIsEnabled(GL_SAMPLE_ALPHA_TO_COVERAGE);
cur->sample_alpha_to_one = gl4es_glIsEnabled(GL_SAMPLE_ALPHA_TO_ONE);
cur->sample_coverage = gl4es_glIsEnabled(GL_SAMPLE_COVERAGE);
cur->scissor_test = gl4es_glIsEnabled(GL_SCISSOR_TEST);
cur->stencil_test = gl4es_glIsEnabled(GL_STENCIL_TEST);
int a;
for (a=0; a<hardext.maxtex; a++) {
cur->tex_enabled[a] = glstate->enable.texture[a];
cur->texgen_s[a] = glstate->enable.texgen_s[a];
cur->texgen_r[a] = glstate->enable.texgen_r[a];
cur->texgen_t[a] = glstate->enable.texgen_t[a];
cur->texgen_q[a] = glstate->enable.texgen_q[a];
}
cur->pointsprite = gl4es_glIsEnabled(GL_POINT_SPRITE);
}
// TODO: GL_EVAL_BIT
if (mask & GL_FOG_BIT) {
cur->fog = gl4es_glIsEnabled(GL_FOG);
gl4es_glGetFloatv(GL_FOG_COLOR, cur->fog_color);
gl4es_glGetFloatv(GL_FOG_DENSITY, &cur->fog_density);
gl4es_glGetFloatv(GL_FOG_START, &cur->fog_start);
gl4es_glGetFloatv(GL_FOG_END, &cur->fog_end);
gl4es_glGetIntegerv(GL_FOG_MODE, &cur->fog_mode);
}
if (mask & GL_HINT_BIT) {
gl4es_glGetIntegerv(GL_PERSPECTIVE_CORRECTION_HINT, &cur->perspective_hint);
gl4es_glGetIntegerv(GL_POINT_SMOOTH_HINT, &cur->point_smooth_hint);
gl4es_glGetIntegerv(GL_LINE_SMOOTH_HINT, &cur->line_smooth_hint);
gl4es_glGetIntegerv(GL_FOG_HINT, &cur->fog_hint);
gl4es_glGetIntegerv(GL_GENERATE_MIPMAP_HINT, &cur->mipmap_hint);
for (int i=GL4ES_HINT_FIRST; i<GL4ES_HINT_LAST; i++)
gl4es_glGetIntegerv(i, &cur->gles4_hint[i-GL4ES_HINT_FIRST]);
}
if (mask & GL_LIGHTING_BIT) {
cur->lighting = gl4es_glIsEnabled(GL_LIGHTING);
gl4es_glGetFloatv(GL_LIGHT_MODEL_AMBIENT, cur->light_model_ambient);
gl4es_glGetIntegerv(GL_LIGHT_MODEL_TWO_SIDE, &cur->light_model_two_side);
int i;
int j=0;
cur->lights_enabled = (GLboolean *)malloc(hardext.maxlights * sizeof(GLboolean));
cur->lights = (GLfloat *)malloc(hardext.maxlights * sizeof(GLfloat)*(10*4));
for (i = 0; i < hardext.maxlights; i++) {
*(cur->lights_enabled + i) = gl4es_glIsEnabled(GL_LIGHT0 + i);
#define L(A) gl4es_glGetLightfv(GL_LIGHT0 + i, A, cur->lights+j); j+=4
L(GL_AMBIENT);
L(GL_DIFFUSE);
L(GL_SPECULAR);
L(GL_POSITION);
L(GL_SPOT_CUTOFF);
L(GL_SPOT_DIRECTION);
L(GL_SPOT_EXPONENT);
L(GL_CONSTANT_ATTENUATION);
L(GL_LINEAR_ATTENUATION);
L(GL_QUADRATIC_ATTENUATION);
#undef L
}
j=0;
cur->materials = (GLfloat *)malloc(1 * sizeof(GLfloat)*(5*4));
#define M(A) gl4es_glGetMaterialfv(GL_FRONT, A, cur->materials+j); j+=4
M(GL_AMBIENT);
M(GL_DIFFUSE);
M(GL_SPECULAR);
M(GL_EMISSION);
M(GL_SHININESS); // handle both face at some point?
#undef M
gl4es_glGetIntegerv(GL_SHADE_MODEL, &cur->shade_model);
}
if (mask & GL_LINE_BIT) {
cur->line_smooth = gl4es_glIsEnabled(GL_LINE_SMOOTH);
// TODO: stipple stuff here
gl4es_glGetFloatv(GL_LINE_WIDTH, &cur->line_width);
}
// GL_LIST_BIT
if (mask & GL_LIST_BIT) {
cur->list_base = glstate->list.base;
}
if (mask & GL_MULTISAMPLE_BIT) {
cur->multisample = gl4es_glIsEnabled(GL_MULTISAMPLE);
cur->sample_alpha_to_coverage = gl4es_glIsEnabled(GL_SAMPLE_ALPHA_TO_COVERAGE);
cur->sample_alpha_to_one = gl4es_glIsEnabled(GL_SAMPLE_ALPHA_TO_ONE);
cur->sample_coverage = gl4es_glIsEnabled(GL_SAMPLE_COVERAGE);
}
// GL_PIXEL_MODE_BIT
if (mask & GL_PIXEL_MODE_BIT) {
GLenum pixel_name[] = {GL_RED_BIAS, GL_RED_SCALE, GL_GREEN_BIAS, GL_GREEN_SCALE, GL_BLUE_BIAS, GL_BLUE_SCALE, GL_ALPHA_BIAS, GL_ALPHA_SCALE};
int i;
for (i=0; i<8; i++)
gl4es_glGetFloatv(pixel_name[i], &cur->pixel_scale_bias[i]);
//TODO: GL_DEPTH_BIAS & GL_DEPTH_SCALE (probably difficult)
//TODO: GL_INDEX_OFFEST & GL_INDEX_SHIFT
//TODO: GL_MAP_COLOR & GL_MAP_STENCIL (probably difficult too)
gl4es_glGetFloatv(GL_ZOOM_X, &cur->pixel_zoomx);
gl4es_glGetFloatv(GL_ZOOM_Y, &cur->pixel_zoomy);
}
if (mask & GL_POINT_BIT) {
cur->point_smooth = gl4es_glIsEnabled(GL_POINT_SMOOTH);
gl4es_glGetFloatv(GL_POINT_SIZE, &cur->point_size);
if(hardext.pointsprite) {
cur->pointsprite = gl4es_glIsEnabled(GL_POINT_SPRITE);
int a;
for (a=0; a<hardext.maxtex; a++) {
cur->pscoordreplace[a] = glstate->texture.pscoordreplace[a];
}
}
}
// TODO: GL_POLYGON_BIT
// TODO: GL_POLYGON_STIPPLE_BIT
if (mask & GL_SCISSOR_BIT) {
cur->scissor_test = gl4es_glIsEnabled(GL_SCISSOR_TEST);
gl4es_glGetFloatv(GL_SCISSOR_BOX, cur->scissor_box);
}
// TODO: GL_STENCIL_BUFFER_BIT
if (mask & GL_STENCIL_BUFFER_BIT) {
cur->stencil_test = gl4es_glIsEnabled(GL_STENCIL_TEST);
gl4es_glGetIntegerv(GL_STENCIL_FUNC, &cur->stencil_func);
gl4es_glGetIntegerv(GL_STENCIL_VALUE_MASK, &cur->stencil_mask);
gl4es_glGetIntegerv(GL_STENCIL_REF, &cur->stencil_ref);
//TODO: glStencilFuncSeperate
//TODO: Stencil value mask
gl4es_glGetIntegerv(GL_STENCIL_FAIL, &cur->stencil_sfail);
gl4es_glGetIntegerv(GL_STENCIL_PASS_DEPTH_FAIL, &cur->stencil_dpfail);
gl4es_glGetIntegerv(GL_STENCIL_PASS_DEPTH_PASS, &cur->stencil_dppass);
//TODO: glStencilOpSeparate
gl4es_glGetIntegerv(GL_STENCIL_CLEAR_VALUE, &cur->stencil_clearvalue);
//TODO: Stencil buffer writemask
}
// GL_TEXTURE_BIT - TODO: incomplete
if (mask & GL_TEXTURE_BIT) {
cur->active=glstate->texture.active;
int a;
for (a=0; a<hardext.maxtex; a++) {
cur->texgen_r[a] = glstate->enable.texgen_r[a];
cur->texgen_s[a] = glstate->enable.texgen_s[a];
cur->texgen_t[a] = glstate->enable.texgen_t[a];
cur->texgen_q[a] = glstate->enable.texgen_q[a];
cur->texgen[a] = glstate->texgen[a]; // all mode and planes per texture in 1 line
for (int j=0; j<ENABLED_TEXTURE_LAST; j++)
cur->texture[a][j] = (glstate->texture.bound[a][j])?glstate->texture.bound[a][j]->texture:0;
}
//glActiveTexture(GL_TEXTURE0+cur->active);
}
// GL_TRANSFORM_BIT
if (mask & GL_TRANSFORM_BIT) {
if (!(mask & GL_ENABLE_BIT)) {
int i;
GLint max_clip_planes;
gl4es_glGetIntegerv(GL_MAX_CLIP_PLANES, &max_clip_planes);
cur->clip_planes_enabled = (GLboolean *)malloc(max_clip_planes * sizeof(GLboolean));
for (i = 0; i < max_clip_planes; i++) {
*(cur->clip_planes_enabled + i) = gl4es_glIsEnabled(GL_CLIP_PLANE0 + i);
}
}
gl4es_glGetIntegerv(GL_MATRIX_MODE, &cur->matrix_mode);
cur->rescale_normal_flag = gl4es_glIsEnabled(GL_RESCALE_NORMAL);
cur->normalize_flag = gl4es_glIsEnabled(GL_NORMALIZE);
}
// GL_VIEWPORT_BIT
if (mask & GL_VIEWPORT_BIT) {
gl4es_glGetIntegerv(GL_VIEWPORT, cur->viewport_size);
gl4es_glGetFloatv(GL_DEPTH_RANGE, cur->depth_range);
}
glstate->stack->len++;
}