GLint gl4es_glRenderMode(GLenum mode) {
if(glstate->list.compiling) {errorShim(GL_INVALID_OPERATION); return 0;}
if(glstate->list.active) flush();
int ret = 0;
if ((mode==GL_SELECT) || (mode==GL_RENDER)) { // missing GL_FEEDBACK
noerrorShim();
} else {
errorShim(GL_INVALID_ENUM);
return 0;
}
if (glstate->render_mode == GL_SELECT) {
push_hit();
ret = glstate->selectbuf.count;
}
if (mode == GL_SELECT) {
if (glstate->selectbuf.buffer == NULL) {// error, cannot use Select Mode without select buffer
errorShim(GL_INVALID_OPERATION);
return 0;
}
glstate->selectbuf.count = 0;
glstate->selectbuf.pos = 0;
glstate->selectbuf.overflow = 0;
glstate->selectbuf.zmin = 1e10f;
glstate->selectbuf.zmax = -1e10f;
glstate->selectbuf.zminoverall = 1e10f;
glstate->selectbuf.zmaxoverall = -1e10f;
glstate->selectbuf.hit = 0;
}
glstate->render_mode = mode;
return ret;
}
void gl4es_glGetQueryObjectuiv(GLuint id, GLenum pname, GLuint* params) {
khint_t k;
int ret;
if (glstate->list.pending)
flush();
glquery_t *query = NULL;
khash_t(queries) *list = glstate->queries;
if (! list) {
list = glstate->queries = kh_init(queries);
// segfaults if we don't do a single put
kh_put(queries, list, 1, &ret);
kh_del(queries, list, 1);
}
k = kh_get(queries, list, id);
if (k != kh_end(list)) {
query = kh_value(list, k);
}
if(!query) {
errorShim(GL_INVALID_OPERATION);
return;
}
noerrorShim();
switch (pname) {
case GL_QUERY_RESULT_AVAILABLE:
*params = GL_FALSE;
break;
case GL_QUERY_RESULT:
*params = query->num;
break;
default:
errorShim(GL_INVALID_ENUM);
break;
}
}
void gl4es_glEndQuery(GLenum target) {
if(target!=GL_SAMPLES_PASSED) {
errorShim(GL_INVALID_ENUM);
return;
}
if(!active_samples_passed) {
errorShim(GL_INVALID_OPERATION);
return;
}
if (glstate->list.pending)
flush();
active_samples_passed = NULL;
noerrorShim();
}
void gl4es_glLightModelfv(GLenum pname, const GLfloat* params) {
//printf("%sglLightModelfv(%04X, [%.2f, %.2f, %.2f, %.2f])\n", (state.list.compiling)?"list":"", pname, params[0], params[1], params[2], params[3]);
if (glstate->list.compiling && glstate->list.active) {
NewStage(glstate->list.active, STAGE_LIGHTMODEL);
/* if (glstate->list.active->lightmodel)
glstate->list.active = extend_renderlist(glstate->list.active);*/
glstate->list.active->lightmodelparam = pname;
glstate->list.active->lightmodel = (GLfloat*)malloc(4*sizeof(GLfloat));
memcpy(glstate->list.active->lightmodel, params, 4*sizeof(GLfloat));
noerrorShim();
return;
}
LOAD_GLES(glLightModelfv);
switch (pname) {
case GL_LIGHT_MODEL_AMBIENT:
case GL_LIGHT_MODEL_TWO_SIDE:
errorGL();
gles_glLightModelfv(pname, params);
break;
default:
errorShim(GL_INVALID_ENUM);
//printf("stubbed glLightModelfv(%i, %p [%.2f])\n", pname, params, params[0]);
break;
}
}
void gl4es_glBeginQuery(GLenum target, GLuint id) {
if(target!=GL_SAMPLES_PASSED) {
errorShim(GL_INVALID_ENUM);
return;
}
if (glstate->list.pending)
flush();
khint_t k;
int ret;
glquery_t *query;
khash_t(queries) *list = glstate->queries;
if (! list) {
list = glstate->queries = kh_init(queries);
// segfaults if we don't do a single put
kh_put(queries, list, 1, &ret);
kh_del(queries, list, 1);
}
k = kh_get(queries, list, id);
if (k != kh_end(list)) {
query = kh_value(list, k);
} else {
k = kh_put(queries, list, id, &ret);
query = kh_value(list, k) = malloc(sizeof(glquery_t));
}
query->target = target;
query->num = 0;
active_samples_passed = query;
noerrorShim();
}
void glPopName() {
noerrorShim();
if (state.render_mode != GL_SELECT)
return;
push_hit();
if (state.namestack.top>0)
state.namestack.top--;
else
errorShim(GL_STACK_UNDERFLOW);
}
void gl4es_glGetQueryiv(GLenum target, GLenum pname, GLint* params) {
if(target!=GL_SAMPLES_PASSED) {
errorShim(GL_INVALID_ENUM);
return;
}
if (glstate->list.pending)
flush();
noerrorShim();
switch (pname) {
case GL_CURRENT_QUERY:
*params = (active_samples_passed)?active_samples_passed->id:0;
break;
case GL_QUERY_COUNTER_BITS:
*params = 0; //no counter...
break;
default:
errorShim(GL_INVALID_ENUM);
}
}
void gl4es_glDisableClientStateIndexedEXT(GLenum array, GLuint index) {
if (array == GL_TEXTURE_COORD_ARRAY) {
int old = glstate->texture.client;
if(old!=index) gl4es_glClientActiveTexture(GL_TEXTURE0+index);
gl4es_glDisableClientState(array);
if(old!=index) gl4es_glClientActiveTexture(GL_TEXTURE0+old);
errorGL();
} else {
errorShim(GL_INVALID_ENUM);
}
}
void gl4es_glGenQueries(GLsizei n, GLuint * ids) {
if (glstate->list.pending)
flush();
noerrorShim();
if (n<1) {
errorShim(GL_INVALID_VALUE);
return;
}
for (int i=0; i<n; i++) {
ids[i] = ++lastquery;
}
}
void gl4es_glPopClientAttrib() {
noerrorShim();
GLuint old_glbatch = glstate->gl_batch;
if (glstate->gl_batch) {
flush();
glstate->gl_batch = 0;
}
//LOAD_GLES(glVertexPointer);
//LOAD_GLES(glColorPointer);
//LOAD_GLES(glNormalPointer);
//LOAD_GLES(glTexCoordPointer);
if (glstate->clientStack == NULL || glstate->clientStack->len == 0) {
errorShim(GL_STACK_UNDERFLOW);
return;
}
glclientstack_t *cur = glstate->clientStack + glstate->clientStack->len-1;
if (cur->mask & GL_CLIENT_PIXEL_STORE_BIT) {
gl4es_glPixelStorei(GL_PACK_ALIGNMENT, cur->pack_align);
gl4es_glPixelStorei(GL_UNPACK_ALIGNMENT, cur->unpack_align);
gl4es_glPixelStorei(GL_UNPACK_ROW_LENGTH, cur->unpack_row_length);
gl4es_glPixelStorei(GL_UNPACK_SKIP_PIXELS, cur->unpack_skip_pixels);
gl4es_glPixelStorei(GL_UNPACK_SKIP_ROWS, cur->unpack_skip_rows);
gl4es_glPixelStorei(GL_PACK_ROW_LENGTH, cur->pack_row_length);
gl4es_glPixelStorei(GL_PACK_SKIP_PIXELS, cur->pack_skip_pixels);
gl4es_glPixelStorei(GL_PACK_SKIP_ROWS, cur->pack_skip_rows);
}
if (cur->mask & GL_CLIENT_VERTEX_ARRAY_BIT) {
if (glstate->vao->vertex_array != cur->vert_enable)
enable_disable(GL_VERTEX_ARRAY, cur->vert_enable);
if (glstate->vao->normal_array != cur->normal_enable)
enable_disable(GL_NORMAL_ARRAY, cur->normal_enable);
if (glstate->vao->color_array != cur->color_enable)
enable_disable(GL_COLOR_ARRAY, cur->color_enable);
if (glstate->vao->secondary_array != cur->secondary_enable)
enable_disable(GL_SECONDARY_COLOR_ARRAY, cur->secondary_enable);
for (int a=0; a<hardext.maxtex; a++) {
if (glstate->vao->tex_coord_array[a] != cur->tex_enable[a]) {
gl4es_glClientActiveTexture(GL_TEXTURE0+a);
enable_disable(GL_TEXTURE_COORD_ARRAY, cur->tex_enable[a]);
}
}
memcpy(&glstate->vao->pointers, &(cur->pointers), sizeof(pointer_states_t));
if (glstate->texture.client != cur->client) gl4es_glClientActiveTexture(GL_TEXTURE0+cur->client);
}
glstate->clientStack->len--;
glstate->gl_batch = old_glbatch;
}
GLboolean gl4es_glIsQuery(GLuint id) {
if(glstate->list.compiling) {errorShim(GL_INVALID_OPERATION); return GL_FALSE;}
if(glstate->list.active) flush();
khash_t(queries) *list = glstate->queries;
khint_t k;
noerrorShim();
if (list) {
k = kh_get(queries, list, id);
if (k != kh_end(list)) {
return GL_TRUE;
}
}
return GL_FALSE;
}
GLint glRenderMode(GLenum mode) {
int ret = 0;
if ((mode==GL_SELECT) || (mode==GL_RENDER)) { // missing GL_FEEDBACK
noerrorShim();
} else {
errorShim(GL_INVALID_ENUM);
return 0;
}
if (state.render_mode == GL_SELECT) {
push_hit();
ret = state.selectbuf.count;
}
if (mode == GL_SELECT) {
if (state.selectbuf.buffer == NULL) {// error, cannot use Select Mode without select buffer
errorShim(GL_INVALID_OPERATION);
return 0;
}
state.selectbuf.count = 0;
state.selectbuf.pos = 0;
state.selectbuf.overflow = 0;
state.selectbuf.zmin = 1.0f;
state.selectbuf.zmax = 0.0f;
state.selectbuf.hit = 0;
}
if((mode==GL_SELECT) && (state.gl_batch)) {
state.gl_batch = 0;
flush();
}
if((mode==GL_RENDER) && (state.gl_batch==0) && (gl_batch==1)) {
state.gl_batch = 1;
flush();
}
state.render_mode = mode;
return ret;
}
void gl4es_glPopName() {
if(glstate->list.pending)
flush();
if(glstate->list.active) {
NewStage(glstate->list.active, STAGE_RENDER);
glstate->list.active->render_op = 2;
return;
}
noerrorShim();
if (glstate->render_mode != GL_SELECT)
return;
push_hit();
if (glstate->namestack.top>0)
glstate->namestack.top--;
else
errorShim(GL_STACK_UNDERFLOW);
}
void gl4es_glLightModelf(GLenum pname, GLfloat param) {
//printf("%sglLightModelf(%04X, %.2f)\n", (state.list.compiling)?"list":"", pname, param);
if (glstate->list.compiling && glstate->list.active) {
GLfloat dummy[4];
dummy[0]=param;
gl4es_glLightModelfv(pname, dummy);
return;
}
LOAD_GLES(glLightModelf);
switch (pname) {
case GL_LIGHT_MODEL_AMBIENT:
case GL_LIGHT_MODEL_TWO_SIDE:
errorGL();
gles_glLightModelf(pname, param);
break;
default:
errorShim(GL_INVALID_ENUM);
//printf("stubbed glLightModelf(%i, %.2f)\n", pname, param);
break;
}
}
void glPopAttrib() {
//printf("glPopAttrib()\n");
noerrorShim();
if ((state.list.compiling || state.gl_batch) && state.list.active) {
NewStage(state.list.active, STAGE_POP);
state.list.active->popattribute = true;
return;
}
if (stack == NULL || stack->len == 0) {
errorShim(GL_STACK_UNDERFLOW);
return;
}
glstack_t *cur = stack + stack->len-1;
if (cur->mask & GL_COLOR_BUFFER_BIT) {
enable_disable(GL_ALPHA_TEST, cur->alpha_test);
glAlphaFunc(cur->alpha_test_func, cur->alpha_test_ref);
enable_disable(GL_BLEND, cur->blend);
glBlendFunc(cur->blend_src_func, cur->blend_dst_func);
enable_disable(GL_DITHER, cur->dither);
enable_disable(GL_COLOR_LOGIC_OP, cur->color_logic_op);
glLogicOp(cur->logic_op);
GLfloat *c;
glClearColor(v4(cur->clear_color));
glColorMask(v4(cur->color_mask));
}
if (cur->mask & GL_CURRENT_BIT) {
glColor4f(v4(cur->color));
glNormal3f(v3(cur->normal));
glTexCoord2f(v2(cur->tex));
}
if (cur->mask & GL_DEPTH_BUFFER_BIT) {
enable_disable(GL_DEPTH_TEST, cur->depth_test);
glDepthFunc(cur->depth_func);
glClearDepth(cur->clear_depth);
glDepthMask(cur->depth_mask);
}
if (cur->mask & GL_ENABLE_BIT) {
int i;
enable_disable(GL_ALPHA_TEST, cur->alpha_test);
enable_disable(GL_AUTO_NORMAL, cur->autonormal);
enable_disable(GL_BLEND, cur->blend);
GLint max_clip_planes;
glGetIntegerv(GL_MAX_CLIP_PLANES, &max_clip_planes);
for (i = 0; i < max_clip_planes; i++) {
enable_disable(GL_CLIP_PLANE0 + i, *(cur->clip_planes_enabled + i));
}
enable_disable(GL_COLOR_MATERIAL, cur->colormaterial);
enable_disable(GL_CULL_FACE, cur->cull_face);
enable_disable(GL_DEPTH_TEST, cur->depth_test);
enable_disable(GL_DITHER, cur->dither);
enable_disable(GL_FOG, cur->fog);
GLint max_lights;
glGetIntegerv(GL_MAX_LIGHTS, &max_lights);
for (i = 0; i < max_lights; i++) {
enable_disable(GL_LIGHT0 + i, *(cur->lights_enabled + i));
}
enable_disable(GL_LIGHTING, cur->lighting);
enable_disable(GL_LINE_SMOOTH, cur->line_smooth);
enable_disable(GL_LINE_STIPPLE, cur->line_stipple);
enable_disable(GL_COLOR_LOGIC_OP, cur->color_logic_op);
//TODO: GL_INDEX_LOGIC_OP
//TODO: GL_MAP1_x
//TODO: GL_MAP2_x
enable_disable(GL_MULTISAMPLE, cur->multisample);
enable_disable(GL_NORMALIZE, cur->normalize);
enable_disable(GL_POINT_SMOOTH, cur->point_smooth);
//TODO: GL_POLYGON_OFFSET_LINE
enable_disable(GL_POLYGON_OFFSET_FILL, cur->polygon_offset_fill);
//TODO: GL_POLYGON_OFFSET_POINT
//TODO: GL_POLYGON_SMOOTH
//TODO: GL_POLYGON_STIPPLE
enable_disable(GL_SAMPLE_ALPHA_TO_COVERAGE, cur->sample_alpha_to_coverage);
enable_disable(GL_SAMPLE_ALPHA_TO_ONE, cur->sample_alpha_to_one);
enable_disable(GL_SAMPLE_COVERAGE, cur->sample_coverage);
enable_disable(GL_SCISSOR_TEST, cur->scissor_test);
enable_disable(GL_STENCIL_TEST, cur->stencil_test);
int a;
int old_tex = state.texture.active;
for (a=0; a<MAX_TEX; a++) {
if (state.enable.texture_1d[a] != cur->texture_1d[a]) {
glActiveTexture(GL_TEXTURE0+a);
enable_disable(GL_TEXTURE_1D, cur->texture_1d[a]);
}
if (state.enable.texture_2d[a] != cur->texture_2d[a]) {
glActiveTexture(GL_TEXTURE0+a);
enable_disable(GL_TEXTURE_2D, cur->texture_2d[a]);
}
if (state.enable.texture_3d[a] != cur->texture_3d[a]) {
glActiveTexture(GL_TEXTURE0+a);
enable_disable(GL_TEXTURE_3D, cur->texture_3d[a]);
}
state.enable.texgen_r[a] = cur->texgen_r[a];
state.enable.texgen_s[a] = cur->texgen_s[a];
state.enable.texgen_t[a] = cur->texgen_t[a];
}
if (state.texture.active != old_tex) glActiveTexture(GL_TEXTURE0+old_tex);
}
if (cur->mask & GL_FOG_BIT) {
enable_disable(GL_FOG, cur->fog);
glFogfv(GL_FOG_COLOR, cur->fog_color);
glFogf(GL_FOG_DENSITY, cur->fog_density);
glFogf(GL_FOG_START, cur->fog_start);
glFogf(GL_FOG_END, cur->fog_end);
glFogf(GL_FOG_MODE, cur->fog_mode);
}
if (cur->mask & GL_HINT_BIT) {
enable_disable(GL_PERSPECTIVE_CORRECTION_HINT, cur->perspective_hint);
enable_disable(GL_POINT_SMOOTH_HINT, cur->point_smooth_hint);
enable_disable(GL_LINE_SMOOTH_HINT, cur->line_smooth_hint);
enable_disable(GL_FOG_HINT, cur->fog_hint);
enable_disable(GL_GENERATE_MIPMAP_HINT, cur->mipmap_hint);
}
// GL_LIST_BIT
if (cur->mask & GL_LIST_BIT) {
glListBase(cur->list_base);
}
if (cur->mask & GL_LINE_BIT) {
enable_disable(GL_LINE_SMOOTH, cur->line_smooth);
// TODO: stipple stuff here
glLineWidth(cur->line_width);
}
if (cur->mask & GL_MULTISAMPLE_BIT) {
enable_disable(GL_MULTISAMPLE, cur->multisample);
enable_disable(GL_SAMPLE_ALPHA_TO_COVERAGE, cur->sample_alpha_to_coverage);
enable_disable(GL_SAMPLE_ALPHA_TO_ONE, cur->sample_alpha_to_one);
enable_disable(GL_SAMPLE_COVERAGE, cur->sample_coverage);
}
if (cur->mask & GL_POINT_BIT) {
enable_disable(GL_POINT_SMOOTH, cur->point_smooth);
glPointSize(cur->point_size);
}
if (cur->mask & GL_SCISSOR_BIT) {
enable_disable(GL_SCISSOR_TEST, cur->scissor_test);
glScissor(v4(cur->scissor_box));
}
if (cur->mask & GL_STENCIL_BUFFER_BIT) {
enable_disable(GL_STENCIL_TEST, cur->stencil_test);
glStencilFunc(cur->stencil_func, cur->stencil_ref, cur->stencil_mask);
//TODO: Stencil value mask
glStencilOp(cur->stencil_sfail, cur->stencil_dpfail, cur->stencil_dppass);
glClearStencil(cur->stencil_clearvalue);
//TODO: Stencil buffer writemask
}
if (cur->mask & GL_TEXTURE_BIT) {
int a;
//TODO: Enable bit for the 4 texture coordinates
for (a=0; a<MAX_TEX; a++) {
state.enable.texgen_r[a] = cur->texgen_r[a];
state.enable.texgen_s[a] = cur->texgen_s[a];
state.enable.texgen_t[a] = cur->texgen_t[a];
state.texgen[a] = cur->texgen[a]; // all mode and planes per texture in 1 line
if ((cur->texture[a]==0 && state.texture.bound[a] != 0) || (cur->texture[a]!=0 && state.texture.bound[a]==0)) {
glActiveTexture(GL_TEXTURE0+a);
glBindTexture(GL_TEXTURE_2D, cur->texture[a]);
}
}
if (state.texture.active!= cur->active) glActiveTexture(GL_TEXTURE0+cur->active);
}
if (cur->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++)
glPixelTransferf(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)
glPixelZoom(cur->pixel_zoomx, cur->pixel_zoomy);
}
if (cur->mask & GL_TRANSFORM_BIT) {
if (!(cur->mask & GL_ENABLE_BIT)) {
int i;
GLint max_clip_planes;
glGetIntegerv(GL_MAX_CLIP_PLANES, &max_clip_planes);
for (i = 0; i < max_clip_planes; i++) {
enable_disable(GL_CLIP_PLANE0 + i, *(cur->clip_planes_enabled + i));
}
}
glMatrixMode(cur->matrix_mode);
enable_disable(GL_NORMALIZE, cur->normalize_flag);
enable_disable(GL_RESCALE_NORMAL, cur->rescale_normal_flag);
}
if (cur->mask & GL_VIEWPORT_BIT) {
glViewport(cur->viewport_size[0], cur->viewport_size[1], cur->viewport_size[2], cur->viewport_size[3]);
glDepthRangef(cur->depth_range[0], cur->depth_range[1]);
}
maybe_free(cur->clip_planes_enabled);
maybe_free(cur->clip_planes);
maybe_free(cur->lights_enabled);
maybe_free(cur->lights);
stack->len--;
}
void gl4es_glPopAttrib() {
//printf("glPopAttrib()\n");
noerrorShim();
if ((glstate->list.compiling || glstate->gl_batch) && glstate->list.active) {
NewStage(glstate->list.active, STAGE_POP);
glstate->list.active->popattribute = true;
return;
}
if (glstate->stack == NULL || glstate->stack->len == 0) {
errorShim(GL_STACK_UNDERFLOW);
return;
}
glstack_t *cur = glstate->stack + glstate->stack->len-1;
if (cur->mask & GL_COLOR_BUFFER_BIT) {
enable_disable(GL_ALPHA_TEST, cur->alpha_test);
gl4es_glAlphaFunc(cur->alpha_test_func, cur->alpha_test_ref);
enable_disable(GL_BLEND, cur->blend);
gl4es_glBlendFunc(cur->blend_src_func, cur->blend_dst_func);
enable_disable(GL_DITHER, cur->dither);
enable_disable(GL_COLOR_LOGIC_OP, cur->color_logic_op);
gl4es_glLogicOp(cur->logic_op);
GLfloat *c;
gl4es_glClearColor(v4(cur->clear_color));
gl4es_glColorMask(v4(cur->color_mask));
}
if (cur->mask & GL_CURRENT_BIT) {
gl4es_glColor4f(v4(cur->color));
gl4es_glNormal3f(v3(cur->normal));
gl4es_glTexCoord4f(v4(cur->tex));
}
if (cur->mask & GL_DEPTH_BUFFER_BIT) {
enable_disable(GL_DEPTH_TEST, cur->depth_test);
gl4es_glDepthFunc(cur->depth_func);
gl4es_glClearDepth(cur->clear_depth);
gl4es_glDepthMask(cur->depth_mask);
}
if (cur->mask & GL_ENABLE_BIT) {
int i;
enable_disable(GL_ALPHA_TEST, cur->alpha_test);
enable_disable(GL_AUTO_NORMAL, cur->autonormal);
enable_disable(GL_BLEND, cur->blend);
GLint max_clip_planes;
gl4es_glGetIntegerv(GL_MAX_CLIP_PLANES, &max_clip_planes);
for (i = 0; i < max_clip_planes; i++) {
enable_disable(GL_CLIP_PLANE0 + i, *(cur->clip_planes_enabled + i));
}
enable_disable(GL_COLOR_MATERIAL, cur->colormaterial);
enable_disable(GL_CULL_FACE, cur->cull_face);
enable_disable(GL_DEPTH_TEST, cur->depth_test);
enable_disable(GL_DITHER, cur->dither);
enable_disable(GL_FOG, cur->fog);
for (i = 0; i < hardext.maxlights; i++) {
enable_disable(GL_LIGHT0 + i, *(cur->lights_enabled + i));
}
enable_disable(GL_LIGHTING, cur->lighting);
enable_disable(GL_LINE_SMOOTH, cur->line_smooth);
enable_disable(GL_LINE_STIPPLE, cur->line_stipple);
enable_disable(GL_COLOR_LOGIC_OP, cur->color_logic_op);
//TODO: GL_INDEX_LOGIC_OP
//TODO: GL_MAP1_x
//TODO: GL_MAP2_x
enable_disable(GL_MULTISAMPLE, cur->multisample);
enable_disable(GL_NORMALIZE, cur->normalize);
enable_disable(GL_POINT_SMOOTH, cur->point_smooth);
//TODO: GL_POLYGON_OFFSET_LINE
enable_disable(GL_POLYGON_OFFSET_FILL, cur->polygon_offset_fill);
//TODO: GL_POLYGON_OFFSET_POINT
//TODO: GL_POLYGON_SMOOTH
//TODO: GL_POLYGON_STIPPLE
enable_disable(GL_SAMPLE_ALPHA_TO_COVERAGE, cur->sample_alpha_to_coverage);
enable_disable(GL_SAMPLE_ALPHA_TO_ONE, cur->sample_alpha_to_one);
enable_disable(GL_SAMPLE_COVERAGE, cur->sample_coverage);
enable_disable(GL_SCISSOR_TEST, cur->scissor_test);
enable_disable(GL_STENCIL_TEST, cur->stencil_test);
enable_disable(GL_POINT_SPRITE, cur->pointsprite);
int a;
int old_tex = glstate->texture.active;
for (a=0; a<hardext.maxtex; a++) {
if(glstate->enable.texture[a] != cur->tex_enabled[a]) {
gl4es_glActiveTexture(GL_TEXTURE0+a);
for (int j=0; j<ENABLED_TEXTURE_LAST; j++) {
const GLuint t = cur->tex_enabled[a] & (1<<j);
if ((glstate->enable.texture[a] & (1<<j)) != t) {
enable_disable(to_target(j), t);
}
}
}
glstate->enable.texgen_r[a] = cur->texgen_r[a];
glstate->enable.texgen_s[a] = cur->texgen_s[a];
glstate->enable.texgen_t[a] = cur->texgen_t[a];
glstate->enable.texgen_q[a] = cur->texgen_q[a];
}
if (glstate->texture.active != old_tex) gl4es_glActiveTexture(GL_TEXTURE0+old_tex);
}
if (cur->mask & GL_FOG_BIT) {
enable_disable(GL_FOG, cur->fog);
gl4es_glFogfv(GL_FOG_COLOR, cur->fog_color);
gl4es_glFogf(GL_FOG_DENSITY, cur->fog_density);
gl4es_glFogf(GL_FOG_START, cur->fog_start);
gl4es_glFogf(GL_FOG_END, cur->fog_end);
gl4es_glFogf(GL_FOG_MODE, cur->fog_mode);
}
if (cur->mask & GL_HINT_BIT) {
gl4es_glHint(GL_PERSPECTIVE_CORRECTION_HINT, cur->perspective_hint);
gl4es_glHint(GL_POINT_SMOOTH_HINT, cur->point_smooth_hint);
gl4es_glHint(GL_LINE_SMOOTH_HINT, cur->line_smooth_hint);
gl4es_glHint(GL_FOG_HINT, cur->fog_hint);
gl4es_glHint(GL_GENERATE_MIPMAP_HINT, cur->mipmap_hint);
for (int i=GL4ES_HINT_FIRST; i<GL4ES_HINT_LAST; i++)
gl4es_glHint(i, cur->gles4_hint[i-GL4ES_HINT_FIRST]);
}
if (cur->mask & GL_LIGHTING_BIT) {
enable_disable(GL_LIGHTING, cur->lighting);
gl4es_glLightModelfv(GL_LIGHT_MODEL_AMBIENT, cur->light_model_ambient);
gl4es_glLightModeli(GL_LIGHT_MODEL_TWO_SIDE, cur->light_model_two_side);
int i;
int j=0;
for (i = 0; i < hardext.maxlights; i++) {
enable_disable(GL_LIGHT0 + i, *(cur->lights_enabled + i));
#define L(A) gl4es_glLightfv(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;
#define M(A) gl4es_glMaterialfv(GL_FRONT_AND_BACK, 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_glShadeModel(cur->shade_model);
}
// GL_LIST_BIT
if (cur->mask & GL_LIST_BIT) {
gl4es_glListBase(cur->list_base);
}
if (cur->mask & GL_LINE_BIT) {
enable_disable(GL_LINE_SMOOTH, cur->line_smooth);
// TODO: stipple stuff here
gl4es_glLineWidth(cur->line_width);
}
if (cur->mask & GL_MULTISAMPLE_BIT) {
enable_disable(GL_MULTISAMPLE, cur->multisample);
enable_disable(GL_SAMPLE_ALPHA_TO_COVERAGE, cur->sample_alpha_to_coverage);
enable_disable(GL_SAMPLE_ALPHA_TO_ONE, cur->sample_alpha_to_one);
enable_disable(GL_SAMPLE_COVERAGE, cur->sample_coverage);
}
if (cur->mask & GL_POINT_BIT) {
enable_disable(GL_POINT_SMOOTH, cur->point_smooth);
gl4es_glPointSize(cur->point_size);
if(hardext.pointsprite) {
enable_disable(GL_POINT_SPRITE, cur->pointsprite);
int a;
for (a=0; a<hardext.maxtex; a++) {
if(glstate->texture.pscoordreplace[a]!=cur->pscoordreplace[a]) {
gl4es_glActiveTexture(GL_TEXTURE0+a);
gl4es_glTexEnvi(GL_POINT_SPRITE, GL_COORD_REPLACE, cur->pscoordreplace[a]);
}
}
if (glstate->texture.active!= cur->active) gl4es_glActiveTexture(GL_TEXTURE0+cur->active);
}
}
if (cur->mask & GL_SCISSOR_BIT) {
enable_disable(GL_SCISSOR_TEST, cur->scissor_test);
gl4es_glScissor(v4(cur->scissor_box));
}
if (cur->mask & GL_STENCIL_BUFFER_BIT) {
enable_disable(GL_STENCIL_TEST, cur->stencil_test);
gl4es_glStencilFunc(cur->stencil_func, cur->stencil_ref, cur->stencil_mask);
//TODO: Stencil value mask
gl4es_glStencilOp(cur->stencil_sfail, cur->stencil_dpfail, cur->stencil_dppass);
gl4es_glClearStencil(cur->stencil_clearvalue);
//TODO: Stencil buffer writemask
}
if (cur->mask & GL_TEXTURE_BIT) {
int a;
//TODO: Enable bit for the 4 texture coordinates
for (a=0; a<hardext.maxtex; a++) {
glstate->enable.texgen_r[a] = cur->texgen_r[a];
glstate->enable.texgen_s[a] = cur->texgen_s[a];
glstate->enable.texgen_t[a] = cur->texgen_t[a];
glstate->enable.texgen_q[a] = cur->texgen_q[a];
glstate->texgen[a] = cur->texgen[a]; // all mode and planes per texture in 1 line
for (int j=0; j<ENABLED_TEXTURE_LAST; j++)
if ((cur->texture[a][j]==0 && glstate->texture.bound[a][j] != 0) || (cur->texture[a][j]!=0 && glstate->texture.bound[a][j]==0)) {
gl4es_glActiveTexture(GL_TEXTURE0+a);
gl4es_glBindTexture(to_target(j), cur->texture[a][j]);
}
}
if (glstate->texture.active!= cur->active) gl4es_glActiveTexture(GL_TEXTURE0+cur->active);
}
if (cur->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_glPixelTransferf(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_glPixelZoom(cur->pixel_zoomx, cur->pixel_zoomy);
}
if (cur->mask & GL_TRANSFORM_BIT) {
if (!(cur->mask & GL_ENABLE_BIT)) {
int i;
GLint max_clip_planes;
gl4es_glGetIntegerv(GL_MAX_CLIP_PLANES, &max_clip_planes);
for (i = 0; i < max_clip_planes; i++) {
enable_disable(GL_CLIP_PLANE0 + i, *(cur->clip_planes_enabled + i));
}
}
gl4es_glMatrixMode(cur->matrix_mode);
enable_disable(GL_NORMALIZE, cur->normalize_flag);
enable_disable(GL_RESCALE_NORMAL, cur->rescale_normal_flag);
}
if (cur->mask & GL_VIEWPORT_BIT) {
gl4es_glViewport(cur->viewport_size[0], cur->viewport_size[1], cur->viewport_size[2], cur->viewport_size[3]);
gl4es_glDepthRangef(cur->depth_range[0], cur->depth_range[1]);
}
maybe_free(cur->clip_planes_enabled);
maybe_free(cur->clip_planes);
maybe_free(cur->lights_enabled);
maybe_free(cur->lights);
maybe_free(cur->materials);
glstate->stack->len--;
}
