static struct gl_sampler_object *
sampler_parameter_error_check(struct gl_context *ctx, GLuint sampler,
bool get, const char *name)
{
struct gl_sampler_object *sampObj;
sampObj = _mesa_lookup_samplerobj(ctx, sampler);
if (!sampObj) {
/* OpenGL 4.5 spec, section "8.2 Sampler Objects", page 176 of the PDF
* states:
*
* "An INVALID_OPERATION error is generated if sampler is not the name
* of a sampler object previously returned from a call to
* GenSamplers."
*/
_mesa_error(ctx, GL_INVALID_OPERATION, "%s(invalid sampler)", name);
return NULL;
}
if (!get && sampObj->HandleAllocated) {
/* The ARB_bindless_texture spec says:
*
* "The error INVALID_OPERATION is generated by SamplerParameter* if
* <sampler> identifies a sampler object referenced by one or more
* texture handles."
*/
_mesa_error(ctx, GL_INVALID_OPERATION, "%s(immutable sampler)", name);
return NULL;
}
return sampObj;
}
void GLAPIENTRY
_mesa_BindSampler(GLuint unit, GLuint sampler)
{
struct gl_sampler_object *sampObj;
GET_CURRENT_CONTEXT(ctx);
if (unit >= ctx->Const.MaxCombinedTextureImageUnits) {
_mesa_error(ctx, GL_INVALID_VALUE, "glBindSampler(unit %u)", unit);
return;
}
if (sampler == 0) {
/* Use the default sampler object, the one contained in the texture
* object.
*/
sampObj = NULL;
}
else {
/* user-defined sampler object */
sampObj = _mesa_lookup_samplerobj(ctx, sampler);
if (!sampObj) {
_mesa_error(ctx, GL_INVALID_OPERATION, "glBindSampler(sampler)");
return;
}
}
if (ctx->Texture.Unit[unit].Sampler != sampObj) {
FLUSH_VERTICES(ctx, _NEW_TEXTURE);
}
/* bind new sampler */
_mesa_reference_sampler_object(ctx, &ctx->Texture.Unit[unit].Sampler,
sampObj);
}
GLboolean GLAPIENTRY
_mesa_IsSampler(GLuint sampler)
{
GET_CURRENT_CONTEXT(ctx);
ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, GL_FALSE);
return _mesa_lookup_samplerobj(ctx, sampler) != NULL;
}
GLboolean GLAPIENTRY
_mesa_IsSampler(GLuint sampler)
{
struct gl_sampler_object *sampObj;
GET_CURRENT_CONTEXT(ctx);
ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, GL_FALSE);
if (sampler == 0)
return GL_FALSE;
sampObj = _mesa_lookup_samplerobj(ctx, sampler);
return sampObj != NULL;
}
void GLAPIENTRY
_mesa_DeleteSamplers(GLsizei count, const GLuint *samplers)
{
GET_CURRENT_CONTEXT(ctx);
GLsizei i;
FLUSH_VERTICES(ctx, 0);
if (count < 0) {
_mesa_error(ctx, GL_INVALID_VALUE, "glDeleteSamplers(count)");
return;
}
mtx_lock(&ctx->Shared->Mutex);
for (i = 0; i < count; i++) {
if (samplers[i]) {
GLuint j;
struct gl_sampler_object *sampObj =
_mesa_lookup_samplerobj(ctx, samplers[i]);
if (sampObj) {
/* If the sampler is currently bound, unbind it. */
for (j = 0; j < ctx->Const.MaxCombinedTextureImageUnits; j++) {
if (ctx->Texture.Unit[j].Sampler == sampObj) {
FLUSH_VERTICES(ctx, _NEW_TEXTURE);
_mesa_reference_sampler_object(ctx, &ctx->Texture.Unit[j].Sampler, NULL);
}
}
/* The ID is immediately freed for re-use */
_mesa_HashRemove(ctx->Shared->SamplerObjects, samplers[i]);
/* But the object exists until its reference count goes to zero */
_mesa_reference_sampler_object(ctx, &sampObj, NULL);
}
}
}
mtx_unlock(&ctx->Shared->Mutex);
}
static ALWAYS_INLINE void
bind_sampler(struct gl_context *ctx, GLuint unit, GLuint sampler, bool no_error)
{
struct gl_sampler_object *sampObj;
if (sampler == 0) {
/* Use the default sampler object, the one contained in the texture
* object.
*/
sampObj = NULL;
} else {
/* user-defined sampler object */
sampObj = _mesa_lookup_samplerobj(ctx, sampler);
if (!no_error && !sampObj) {
_mesa_error(ctx, GL_INVALID_OPERATION, "glBindSampler(sampler)");
return;
}
}
/* bind new sampler */
_mesa_bind_sampler(ctx, unit, sampObj);
}
void GLAPIENTRY
_mesa_SamplerParameteriv(GLuint sampler, GLenum pname, const GLint *params)
{
struct gl_sampler_object *sampObj;
GLuint res;
GET_CURRENT_CONTEXT(ctx);
sampObj = _mesa_lookup_samplerobj(ctx, sampler);
if (!sampObj) {
/* '3.8.2 Sampler Objects' section of the GL-ES 3.0 specification states:
*
* "An INVALID_OPERATION error is generated if sampler is not the name
* of a sampler object previously returned from a call to GenSamplers."
*
* In desktop GL, an GL_INVALID_VALUE is returned instead.
*/
_mesa_error(ctx, (_mesa_is_gles(ctx) ?
GL_INVALID_OPERATION : GL_INVALID_VALUE),
"glSamplerParameteriv(sampler %u)", sampler);
return;
}
switch (pname) {
case GL_TEXTURE_WRAP_S:
res = set_sampler_wrap_s(ctx, sampObj, params[0]);
break;
case GL_TEXTURE_WRAP_T:
res = set_sampler_wrap_t(ctx, sampObj, params[0]);
break;
case GL_TEXTURE_WRAP_R:
res = set_sampler_wrap_r(ctx, sampObj, params[0]);
break;
case GL_TEXTURE_MIN_FILTER:
res = set_sampler_min_filter(ctx, sampObj, params[0]);
break;
case GL_TEXTURE_MAG_FILTER:
res = set_sampler_mag_filter(ctx, sampObj, params[0]);
break;
case GL_TEXTURE_MIN_LOD:
res = set_sampler_min_lod(ctx, sampObj, (GLfloat) params[0]);
break;
case GL_TEXTURE_MAX_LOD:
res = set_sampler_max_lod(ctx, sampObj, (GLfloat) params[0]);
break;
case GL_TEXTURE_LOD_BIAS:
res = set_sampler_lod_bias(ctx, sampObj, (GLfloat) params[0]);
break;
case GL_TEXTURE_COMPARE_MODE:
res = set_sampler_compare_mode(ctx, sampObj, params[0]);
break;
case GL_TEXTURE_COMPARE_FUNC:
res = set_sampler_compare_func(ctx, sampObj, params[0]);
break;
case GL_TEXTURE_MAX_ANISOTROPY_EXT:
res = set_sampler_max_anisotropy(ctx, sampObj, (GLfloat) params[0]);
break;
case GL_TEXTURE_CUBE_MAP_SEAMLESS:
res = set_sampler_cube_map_seamless(ctx, sampObj, params[0]);
break;
case GL_TEXTURE_SRGB_DECODE_EXT:
res = set_sampler_srgb_decode(ctx, sampObj, params[0]);
break;
case GL_TEXTURE_BORDER_COLOR:
{
GLfloat c[4];
c[0] = INT_TO_FLOAT(params[0]);
c[1] = INT_TO_FLOAT(params[1]);
c[2] = INT_TO_FLOAT(params[2]);
c[3] = INT_TO_FLOAT(params[3]);
res = set_sampler_border_colorf(ctx, sampObj, c);
}
break;
default:
res = INVALID_PNAME;
}
switch (res) {
case GL_FALSE:
/* no change */
break;
case GL_TRUE:
/* state change - we do nothing special at this time */
break;
case INVALID_PNAME:
_mesa_error(ctx, GL_INVALID_ENUM, "glSamplerParameteriv(pname=%s)\n",
_mesa_enum_to_string(pname));
break;
case INVALID_PARAM:
_mesa_error(ctx, GL_INVALID_ENUM, "glSamplerParameteriv(param=%d)\n",
params[0]);
break;
case INVALID_VALUE:
_mesa_error(ctx, GL_INVALID_VALUE, "glSamplerParameteriv(param=%d)\n",
params[0]);
break;
default:
;
}
}
void GLAPIENTRY
_mesa_GetSamplerParameterIuiv(GLuint sampler, GLenum pname, GLuint *params)
{
struct gl_sampler_object *sampObj;
GET_CURRENT_CONTEXT(ctx);
sampObj = _mesa_lookup_samplerobj(ctx, sampler);
if (!sampObj) {
_mesa_error(ctx, GL_INVALID_VALUE,
"glGetSamplerParameterIuiv(sampler %u)",
sampler);
return;
}
switch (pname) {
case GL_TEXTURE_WRAP_S:
*params = sampObj->WrapS;
break;
case GL_TEXTURE_WRAP_T:
*params = sampObj->WrapT;
break;
case GL_TEXTURE_WRAP_R:
*params = sampObj->WrapR;
break;
case GL_TEXTURE_MIN_FILTER:
*params = sampObj->MinFilter;
break;
case GL_TEXTURE_MAG_FILTER:
*params = sampObj->MagFilter;
break;
case GL_TEXTURE_MIN_LOD:
*params = (GLuint) sampObj->MinLod;
break;
case GL_TEXTURE_MAX_LOD:
*params = (GLuint) sampObj->MaxLod;
break;
case GL_TEXTURE_LOD_BIAS:
*params = (GLuint) sampObj->LodBias;
break;
case GL_TEXTURE_COMPARE_MODE:
if (!ctx->Extensions.ARB_shadow)
goto invalid_pname;
*params = sampObj->CompareMode;
break;
case GL_TEXTURE_COMPARE_FUNC:
if (!ctx->Extensions.ARB_shadow)
goto invalid_pname;
*params = sampObj->CompareFunc;
break;
case GL_TEXTURE_MAX_ANISOTROPY_EXT:
*params = (GLuint) sampObj->MaxAnisotropy;
break;
case GL_TEXTURE_BORDER_COLOR:
params[0] = sampObj->BorderColor.ui[0];
params[1] = sampObj->BorderColor.ui[1];
params[2] = sampObj->BorderColor.ui[2];
params[3] = sampObj->BorderColor.ui[3];
break;
case GL_TEXTURE_CUBE_MAP_SEAMLESS:
if (!ctx->Extensions.AMD_seamless_cubemap_per_texture)
goto invalid_pname;
*params = sampObj->CubeMapSeamless;
break;
case GL_TEXTURE_SRGB_DECODE_EXT:
if (!ctx->Extensions.EXT_texture_sRGB_decode)
goto invalid_pname;
*params = (GLenum) sampObj->sRGBDecode;
break;
default:
goto invalid_pname;
}
return;
invalid_pname:
_mesa_error(ctx, GL_INVALID_ENUM, "glGetSamplerParameterIuiv(pname=%s)",
_mesa_enum_to_string(pname));
}
void GLAPIENTRY
_mesa_GetSamplerParameterfv(GLuint sampler, GLenum pname, GLfloat *params)
{
struct gl_sampler_object *sampObj;
GET_CURRENT_CONTEXT(ctx);
sampObj = _mesa_lookup_samplerobj(ctx, sampler);
if (!sampObj) {
/* '3.8.2 Sampler Objects' section of the GL-ES 3.0 specification states:
*
* "An INVALID_OPERATION error is generated if sampler is not the name
* of a sampler object previously returned from a call to GenSamplers."
*
* In desktop GL, an GL_INVALID_VALUE is returned instead.
*/
_mesa_error(ctx, (_mesa_is_gles(ctx) ?
GL_INVALID_OPERATION : GL_INVALID_VALUE),
"glGetSamplerParameterfv(sampler %u)", sampler);
return;
}
switch (pname) {
case GL_TEXTURE_WRAP_S:
*params = (GLfloat) sampObj->WrapS;
break;
case GL_TEXTURE_WRAP_T:
*params = (GLfloat) sampObj->WrapT;
break;
case GL_TEXTURE_WRAP_R:
*params = (GLfloat) sampObj->WrapR;
break;
case GL_TEXTURE_MIN_FILTER:
*params = (GLfloat) sampObj->MinFilter;
break;
case GL_TEXTURE_MAG_FILTER:
*params = (GLfloat) sampObj->MagFilter;
break;
case GL_TEXTURE_MIN_LOD:
*params = sampObj->MinLod;
break;
case GL_TEXTURE_MAX_LOD:
*params = sampObj->MaxLod;
break;
case GL_TEXTURE_LOD_BIAS:
*params = sampObj->LodBias;
break;
case GL_TEXTURE_COMPARE_MODE:
if (!ctx->Extensions.ARB_shadow)
goto invalid_pname;
*params = (GLfloat) sampObj->CompareMode;
break;
case GL_TEXTURE_COMPARE_FUNC:
if (!ctx->Extensions.ARB_shadow)
goto invalid_pname;
*params = (GLfloat) sampObj->CompareFunc;
break;
case GL_TEXTURE_MAX_ANISOTROPY_EXT:
*params = sampObj->MaxAnisotropy;
break;
case GL_TEXTURE_BORDER_COLOR:
params[0] = sampObj->BorderColor.f[0];
params[1] = sampObj->BorderColor.f[1];
params[2] = sampObj->BorderColor.f[2];
params[3] = sampObj->BorderColor.f[3];
break;
case GL_TEXTURE_CUBE_MAP_SEAMLESS:
if (!ctx->Extensions.AMD_seamless_cubemap_per_texture)
goto invalid_pname;
*params = (GLfloat) sampObj->CubeMapSeamless;
break;
case GL_TEXTURE_SRGB_DECODE_EXT:
if (!ctx->Extensions.EXT_texture_sRGB_decode)
goto invalid_pname;
*params = (GLfloat) sampObj->sRGBDecode;
break;
default:
goto invalid_pname;
}
return;
invalid_pname:
_mesa_error(ctx, GL_INVALID_ENUM, "glGetSamplerParameterfv(pname=%s)",
_mesa_enum_to_string(pname));
}
void GLAPIENTRY
_mesa_SamplerParameterIuiv(GLuint sampler, GLenum pname, const GLuint *params)
{
struct gl_sampler_object *sampObj;
GLuint res;
GET_CURRENT_CONTEXT(ctx);
sampObj = _mesa_lookup_samplerobj(ctx, sampler);
if (!sampObj) {
_mesa_error(ctx, GL_INVALID_VALUE, "glSamplerParameterIuiv(sampler %u)",
sampler);
return;
}
switch (pname) {
case GL_TEXTURE_WRAP_S:
res = set_sampler_wrap_s(ctx, sampObj, params[0]);
break;
case GL_TEXTURE_WRAP_T:
res = set_sampler_wrap_t(ctx, sampObj, params[0]);
break;
case GL_TEXTURE_WRAP_R:
res = set_sampler_wrap_r(ctx, sampObj, params[0]);
break;
case GL_TEXTURE_MIN_FILTER:
res = set_sampler_min_filter(ctx, sampObj, params[0]);
break;
case GL_TEXTURE_MAG_FILTER:
res = set_sampler_mag_filter(ctx, sampObj, params[0]);
break;
case GL_TEXTURE_MIN_LOD:
res = set_sampler_min_lod(ctx, sampObj, (GLfloat) params[0]);
break;
case GL_TEXTURE_MAX_LOD:
res = set_sampler_max_lod(ctx, sampObj, (GLfloat) params[0]);
break;
case GL_TEXTURE_LOD_BIAS:
res = set_sampler_lod_bias(ctx, sampObj, (GLfloat) params[0]);
break;
case GL_TEXTURE_COMPARE_MODE:
res = set_sampler_compare_mode(ctx, sampObj, params[0]);
break;
case GL_TEXTURE_COMPARE_FUNC:
res = set_sampler_compare_func(ctx, sampObj, params[0]);
break;
case GL_TEXTURE_MAX_ANISOTROPY_EXT:
res = set_sampler_max_anisotropy(ctx, sampObj, (GLfloat) params[0]);
break;
case GL_TEXTURE_CUBE_MAP_SEAMLESS:
res = set_sampler_cube_map_seamless(ctx, sampObj, params[0]);
break;
case GL_TEXTURE_SRGB_DECODE_EXT:
res = set_sampler_srgb_decode(ctx, sampObj, (GLenum) params[0]);
break;
case GL_TEXTURE_BORDER_COLOR:
res = set_sampler_border_colorui(ctx, sampObj, params);
break;
default:
res = INVALID_PNAME;
}
switch (res) {
case GL_FALSE:
/* no change */
break;
case GL_TRUE:
/* state change - we do nothing special at this time */
break;
case INVALID_PNAME:
_mesa_error(ctx, GL_INVALID_ENUM, "glSamplerParameterIuiv(pname=%s)\n",
_mesa_enum_to_string(pname));
break;
case INVALID_PARAM:
_mesa_error(ctx, GL_INVALID_ENUM, "glSamplerParameterIuiv(param=%u)\n",
params[0]);
break;
case INVALID_VALUE:
_mesa_error(ctx, GL_INVALID_VALUE, "glSamplerParameterIuiv(param=%u)\n",
params[0]);
break;
default:
;
}
}