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Implement 2d texture

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This commit is contained in:
Mario Hüttel
2020-07-10 21:36:02 +02:00
parent 74fd10883c
commit c4291dcc20
2 changed files with 271 additions and 60 deletions
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34
include/shimatta-opengl-texture.h
View File

@@ -23,22 +23,30 @@ int shimatta_opengl_texture_use_in_slot(ShimattaOpenglTexture *texture, unsigned
ShimattaOpenglTexture *shimatta_opengl_texture_new(void);
void shimatta_opengl_texture_set_filter(ShimattaOpenglTexture *texture, int filter_s, int filter_t);
void shimatta_opengl_texture_set_wrap(ShimattaOpenglTexture *texture, int wrap_s, int wrap_t);
void shimatta_opengl_texture_set_gen_mipmap(ShimattaOpenglTexture *texture, gboolean gen_mipmap);
int shimatta_opengl_texture_get_filter(ShimattaOpenglTexture *texture, int *filter_s, int *filter_t);
int shimatta_opengl_texture_get_wrap(ShimattaOpenglTexture *texture, int *wrap_s, int *wrap_t);
gboolean shimatta_opengl_texture_get_gen_mipmap(ShimattaOpenglTexture *texture);
int shimatta_opengl_texture_set_data(ShimattaOpenglTexture *texture, unsigned int width, unsigned int height,
GLenum format, void *buffer);
int shimatta_opengl_texture_set_from_image(ShimattaOpenglTexture *texture, const char *path);
int shimatta_opengl_texture_set_data_from_image(ShimattaOpenglTexture *texture, const char *path);
void shimatta_opengl_texture_set_wrap_s(ShimattaOpenglTexture *self, int wrap_s);
void shimatta_opengl_texture_set_wrap_t(ShimattaOpenglTexture *self, int wrap_t);
void shimatta_opengl_texture_set_min_filter(ShimattaOpenglTexture *self, int min_filter);
void shimatta_opengl_texture_set_mag_filter(ShimattaOpenglTexture *self, int mag_filter);
void shimatta_opengl_texture_set_gen_mipmap(ShimattaOpenglTexture *self, gboolean gen_mipmap);
int shimatta_opengl_texture_get_wrap_s(ShimattaOpenglTexture *self);
int shimatta_opengl_texture_get_wrap_t(ShimattaOpenglTexture *self);
int shimatta_opengl_texture_get_mag_filter(ShimattaOpenglTexture *self);
int shimatta_opengl_texture_get_min_filter(ShimattaOpenglTexture *self);
gboolean shimatta_opengl_texture_get_gen_mipmap(ShimattaOpenglTexture *self);
G_END_DECLS

297
src/shimatta-opengl-texture.c
View File

@@ -1,15 +1,21 @@
#include <shimatta-opengl-texture.h>
#include <stb/stb_image.h>
#include <epoxy/gl.h>
typedef struct {
GLint texture_wrap_s;
GLint texture_wrap_t;
GLint texture_min_filter;
GLint texture_max_filter;
gboolean generate_mipmap;
GLuint texture_id;
} ShimattaOpenglTexturePrivate;
enum shimatta_opengl_texture_properties {
PROP_TEXTURE_WRAP_S = 1,
PROP_TEXTURE_WRAP_T,
PROP_TEXTURE_MIN_FILTER,
PROP_TEXTURE_MAG_FILTER,
PROP_TEXTURE_GEN_MIPMAP,
N_PROPS_TEXTURE
};
G_DEFINE_TYPE_WITH_PRIVATE(ShimattaOpenglTexture, shimatta_opengl_texture, G_TYPE_OBJECT);
static int shimatta_opengl_texure_use_default_impl(ShimattaOpenglTexture *texture, unsigned int slot, gboolean use_slot)
@@ -42,9 +48,108 @@ static void use_default(ShimattaOpenglTexture *texture)
(void)shimatta_opengl_texure_use_default_impl(texture, 0U, FALSE);
}
static void shimatta_opengl_texture_dispose(ShimattaOpenglTexture *self)
{
ShimattaOpenglTexturePrivate *priv;
priv = shimatta_opengl_texture_get_instance_private(self);
if (priv->texture_id) {
glDeleteTextures(1, &priv->texture_id);
priv->texture_id = 0;
}
G_OBJECT_CLASS(shimatta_opengl_texture_parent_class)->dispose(G_OBJECT(self));
}
static void shimatta_opengl_texture_get_property(GObject *obj, guint id, GValue *val, GParamSpec *spec)
{
ShimattaOpenglTexture *self;
self = SHIMATTA_OPENGL_TEXTURE(obj);
switch (id) {
case PROP_TEXTURE_WRAP_S:
g_value_set_int(val, shimatta_opengl_texture_get_wrap_s(self));
break;
case PROP_TEXTURE_WRAP_T:
g_value_set_int(val, shimatta_opengl_texture_get_wrap_t(self));
break;
case PROP_TEXTURE_GEN_MIPMAP:
g_value_set_boolean(val, shimatta_opengl_texture_get_gen_mipmap(self));
break;
case PROP_TEXTURE_MAG_FILTER:
g_value_set_int(val, shimatta_opengl_texture_get_mag_filter(self));
break;
case PROP_TEXTURE_MIN_FILTER:
g_value_set_int(val, shimatta_opengl_texture_get_min_filter(self));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID(obj, id, spec);
break;
}
}
static void shimatta_opengl_texture_set_property(GObject *obj, guint id, const GValue *value, GParamSpec *spec)
{
ShimattaOpenglTexture *self;
self = SHIMATTA_OPENGL_TEXTURE(obj);
switch (id) {
case PROP_TEXTURE_WRAP_S:
shimatta_opengl_texture_set_wrap_s(self, g_value_get_int(value));
break;
case PROP_TEXTURE_WRAP_T:
shimatta_opengl_texture_set_wrap_t(self, g_value_get_int(value));
break;
case PROP_TEXTURE_GEN_MIPMAP:
shimatta_opengl_texture_set_gen_mipmap(self, g_value_get_boolean(value));
break;
case PROP_TEXTURE_MAG_FILTER:
shimatta_opengl_texture_set_mag_filter(self, g_value_get_int(value));
break;
case PROP_TEXTURE_MIN_FILTER:
shimatta_opengl_texture_set_min_filter(self, g_value_get_int(value));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID(obj, id, spec);
break;
}
}
static GParamSpec *shimatta_opengl_texture_props[N_PROPS_TEXTURE] = {NULL, };
static void shimatta_opengl_texture_class_init(ShimattaOpenglTextureClass *klass)
{
GObjectClass *gclass;
gclass = G_OBJECT_CLASS(klass);
klass->use = use_default;
klass->use_in_slot = use_in_slot_default;
gclass->dispose = (void (*)(GObject *))shimatta_opengl_texture_dispose;
gclass->set_property = shimatta_opengl_texture_set_property;
gclass->get_property = shimatta_opengl_texture_get_property;
shimatta_opengl_texture_props[PROP_TEXTURE_WRAP_S] =
g_param_spec_int("wrap-s", "WRAP_S", "Wrapping in S",
0, INT_MAX, GL_REPEAT, G_PARAM_READWRITE);
shimatta_opengl_texture_props[PROP_TEXTURE_WRAP_T] =
g_param_spec_int("wrap-t", "WRAP_T", "Wrapping in T",
0, INT_MAX, GL_REPEAT, G_PARAM_READWRITE);
shimatta_opengl_texture_props[PROP_TEXTURE_MIN_FILTER] =
g_param_spec_int("min-filter", "MIN_FILTER", "Min filtering",
0, INT_MAX, GL_LINEAR, G_PARAM_READWRITE);
shimatta_opengl_texture_props[PROP_TEXTURE_MAG_FILTER] =
g_param_spec_int("max-filter", "MAG_FILTER", "Mag filtering",
0, INT_MAX, GL_LINEAR, G_PARAM_READWRITE);
shimatta_opengl_texture_props[PROP_TEXTURE_GEN_MIPMAP] =
g_param_spec_boolean("generate-mipmap", "gen-mipmap", "Generate Mipmap for texture",
TRUE, G_PARAM_READWRITE);
g_object_class_install_properties(gclass, N_PROPS_TEXTURE, shimatta_opengl_texture_props);
}
static void shimatta_opengl_texture_init(ShimattaOpenglTexture *self)
@@ -53,16 +158,9 @@ static void shimatta_opengl_texture_init(ShimattaOpenglTexture *self)
priv = shimatta_opengl_texture_get_instance_private(self);
priv->texture_id = 0;
priv->texture_wrap_s = GL_REPEAT;
priv->texture_wrap_s = GL_REPEAT;
priv->texture_min_filter = GL_LINEAR;
priv->texture_max_filter = GL_LINEAR;
priv->generate_mipmap = TRUE;
glGenTextures(1, &priv->texture_id);
glBindTexture(GL_TEXTURE_2D, priv->texture_id);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
@@ -90,41 +188,10 @@ int shimatta_opengl_texture_use_in_slot(ShimattaOpenglTexture *texture, unsigned
ShimattaOpenglTexture *shimatta_opengl_texture_new()
{
return g_object_new(SHIMATTA_TYPE_OPENGL_TEXTURE, NULL);
}
void shimatta_opengl_texture_set_filter(ShimattaOpenglTexture *texture, int filter_s, int filter_t)
{
ShimattaOpenglTexturePrivate *priv;
g_return_if_fail(SHIMATTA_IS_OPENGL_TEXTURE(texture));
priv = shimatta_opengl_texture_get_instance_private(texture);
}
void shimatta_opengl_texture_set_wrap(ShimattaOpenglTexture *texture, int wrap_s, int wrap_t)
{
}
void shimatta_opengl_texture_set_gen_mipmap(ShimattaOpenglTexture *texture, gboolean gen_mipmap)
{
}
int shimatta_opengl_texture_get_filter(ShimattaOpenglTexture *texture, int *filter_s, int *filter_t)
{
}
int shimatta_opengl_texture_get_wrap(ShimattaOpenglTexture *texture, int *filter_s, int *filter_t)
{
}
gboolean shimatta_opengl_texture_get_gen_mipmap(ShimattaOpenglTexture *texture)
{
}
int shimatta_opengl_texture_set_data(ShimattaOpenglTexture *texture, unsigned int width, unsigned int height,
GLenum format, void *buffer)
@@ -132,17 +199,153 @@ int shimatta_opengl_texture_set_data(ShimattaOpenglTexture *texture, unsigned in
ShimattaOpenglTexturePrivate *priv;
g_return_val_if_fail(SHIMATTA_IS_OPENGL_TEXTURE(texture), -1001);
g_return_val_if_fail(!!buffer, -1005);
priv = shimatta_opengl_texture_get_instance_private(texture);
shimatta_opengl_texture_use(texture);
glTexImage2D(GL_TEXTURE_2D, 0, format, width, height, 0, format, GL_UNSIGNED_BYTE, buffer);
if (priv->generate_mipmap)
glGenerateMipmap(GL_TEXTURE_2D);
return 0;
}
int shimatta_opengl_texture_set_from_image(ShimattaOpenglTexture *texture, const char *path)
int shimatta_opengl_texture_set_data_from_image(ShimattaOpenglTexture *texture, const char *path)
{
int ret = -1;
unsigned char *data;
int width, height;
int nr_channels;
GLenum format;
data = stbi_load(path, &width, &height, &nr_channels, 0);
if (!data)
goto go_out;
switch (nr_channels) {
case 1:
format = GL_RED;
break;
case 3:
format = GL_RGB;
break;
case 4:
format = GL_RGBA;
break;
}
shimatta_opengl_texture_set_data(texture, width, height, format, data);
ret = 0;
stbi_image_free(data);
go_out:
return ret;
}
void shimatta_opengl_texture_set_wrap_s(ShimattaOpenglTexture *self, int wrap_s)
{
g_return_if_fail(SHIMATTA_IS_OPENGL_TEXTURE(self));
shimatta_opengl_texture_use(self);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, wrap_s);
g_object_notify_by_pspec(G_OBJECT(self), shimatta_opengl_texture_props[PROP_TEXTURE_WRAP_S]);
}
void shimatta_opengl_texture_set_wrap_t(ShimattaOpenglTexture *self, int wrap_t)
{
g_return_if_fail(SHIMATTA_IS_OPENGL_TEXTURE(self));
shimatta_opengl_texture_use(self);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, wrap_t);
g_object_notify_by_pspec(G_OBJECT(self), shimatta_opengl_texture_props[PROP_TEXTURE_WRAP_T]);
}
void shimatta_opengl_texture_set_min_filter(ShimattaOpenglTexture *self, int min_filter)
{
g_return_if_fail(SHIMATTA_IS_OPENGL_TEXTURE(self));
shimatta_opengl_texture_use(self);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, min_filter);
g_object_notify_by_pspec(G_OBJECT(self), shimatta_opengl_texture_props[PROP_TEXTURE_MIN_FILTER]);
}
void shimatta_opengl_texture_set_mag_filter(ShimattaOpenglTexture *self, int mag_filter)
{
g_return_if_fail(SHIMATTA_IS_OPENGL_TEXTURE(self));
shimatta_opengl_texture_use(self);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, mag_filter);
g_object_notify_by_pspec(G_OBJECT(self), shimatta_opengl_texture_props[PROP_TEXTURE_MAG_FILTER]);
}
void shimatta_opengl_texture_set_gen_mipmap(ShimattaOpenglTexture *self, gboolean gen_mipmap)
{
ShimattaOpenglTexturePrivate *priv;
g_return_val_if_fail(SHIMATTA_IS_OPENGL_TEXTURE(texture), -1001);
priv = shimatta_opengl_texture_get_instance_private(texture);
priv = shimatta_opengl_texture_get_instance_private(self);
g_return_if_fail(!!priv);
return 0;
priv->generate_mipmap = gen_mipmap;
}
int shimatta_opengl_texture_get_wrap_s(ShimattaOpenglTexture *self)
{
GLint val;
g_return_val_if_fail(SHIMATTA_IS_OPENGL_TEXTURE(self), -1);
shimatta_opengl_texture_use(self);
glGetTexParameteriv(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, &val);
return val;
}
int shimatta_opengl_texture_get_wrap_t(ShimattaOpenglTexture *self)
{
GLint val;
g_return_val_if_fail(SHIMATTA_IS_OPENGL_TEXTURE(self), -1);
shimatta_opengl_texture_use(self);
glGetTexParameteriv(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, &val);
return val;
}
int shimatta_opengl_texture_get_mag_filter(ShimattaOpenglTexture *self)
{
GLint val;
g_return_val_if_fail(SHIMATTA_IS_OPENGL_TEXTURE(self), -1);
shimatta_opengl_texture_use(self);
glGetTexParameteriv(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, &val);
return val;
}
int shimatta_opengl_texture_get_min_filter(ShimattaOpenglTexture *self)
{
GLint val;
g_return_val_if_fail(SHIMATTA_IS_OPENGL_TEXTURE(self), -1);
shimatta_opengl_texture_use(self);
glGetTexParameteriv(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, &val);
return val;
}
gboolean shimatta_opengl_texture_get_gen_mipmap(ShimattaOpenglTexture *self)
{
ShimattaOpenglTexturePrivate *priv;
g_return_val_if_fail(SHIMATTA_IS_OPENGL_TEXTURE(self), -1);
priv = shimatta_opengl_texture_get_instance_private(self);
return priv->generate_mipmap;
}