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Add glMultiTexCoord2fARB

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This commit is contained in:
Luke Benstead 2018-08-05 09:09:27 +01:00
parent 6942e597f4
commit 582a29d267
2 changed files with 34 additions and 10 deletions
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41
GL/immediate.c
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@ -15,19 +15,22 @@ static GLenum ACTIVE_POLYGON_MODE = GL_TRIANGLES;
static AlignedVector VERTICES;
static AlignedVector COLOURS;
static AlignedVector TEXCOORDS;
static AlignedVector UV_COORDS;
static AlignedVector ST_COORDS;
static AlignedVector NORMALS;
static GLfloat NORMAL[3] = {0.0f, 0.0f, 1.0f};
static GLfloat COLOR[4] = {1.0f, 1.0f, 1.0f, 1.0f};
static GLfloat TEXCOORD[2] = {0.0f, 0.0f};
static GLfloat UV_COORD[2] = {0.0f, 0.0f};
static GLfloat ST_COORD[2] = {0.0f, 0.0f};
void initImmediateMode() {
aligned_vector_init(&VERTICES, sizeof(GLfloat));
aligned_vector_init(&COLOURS, sizeof(GLfloat));
aligned_vector_init(&TEXCOORDS, sizeof(GLfloat));
aligned_vector_init(&UV_COORDS, sizeof(GLfloat));
aligned_vector_init(&ST_COORDS, sizeof(GLfloat));
aligned_vector_init(&NORMALS, sizeof(GLfloat));
}
@ -88,9 +91,10 @@ void APIENTRY glVertex3f(GLfloat x, GLfloat y, GLfloat z) {
aligned_vector_push_back(&VERTICES, &z, 1);
/* Push back the stashed colour, normal and texcoord */
/* Push back the stashed colour, normal and uv_coordinate */
aligned_vector_push_back(&COLOURS, COLOR, 4);
aligned_vector_push_back(&TEXCOORDS, TEXCOORD, 2);
aligned_vector_push_back(&UV_COORDS, UV_COORD, 2);
aligned_vector_push_back(&ST_COORDS, ST_COORD, 2);
aligned_vector_push_back(&NORMALS, NORMAL, 3);
}
@ -114,9 +118,23 @@ void APIENTRY glVertex4fv(const GLfloat* v) {
glVertex4f(v[0], v[1], v[2], v[3]);
}
void APIENTRY glMultiTexCoord2fARB(GLenum target, GLfloat s, GLfloat t) {
if(target == GL_TEXTURE0) {
UV_COORD[0] = s;
UV_COORD[1] = t;
} else if(target == GL_TEXTURE1) {
ST_COORD[0] = s;
ST_COORD[1] = t;
} else {
_glKosThrowError(GL_INVALID_ENUM, __func__);
_glKosPrintError();
return;
}
}
void APIENTRY glTexCoord2f(GLfloat u, GLfloat v) {
TEXCOORD[0] = u;
TEXCOORD[1] = v;
UV_COORD[0] = u;
UV_COORD[1] = v;
}
void APIENTRY glTexCoord2fv(const GLfloat* v) {
@ -148,13 +166,18 @@ void APIENTRY glEnd() {
glClientActiveTextureARB(GL_TEXTURE0);
glEnableClientState(GL_TEXTURE_COORD_ARRAY);
glTexCoordPointer(2, GL_FLOAT, 0, TEXCOORDS.data);
glTexCoordPointer(2, GL_FLOAT, 0, UV_COORDS.data);
glClientActiveTextureARB(GL_TEXTURE1);
glEnableClientState(GL_TEXTURE_COORD_ARRAY);
glTexCoordPointer(2, GL_FLOAT, 0, ST_COORDS.data);
glDrawArrays(ACTIVE_POLYGON_MODE, 0, VERTICES.size / 3);
aligned_vector_clear(&VERTICES);
aligned_vector_clear(&COLOURS);
aligned_vector_clear(&TEXCOORDS);
aligned_vector_clear(&UV_COORDS);
aligned_vector_clear(&ST_COORDS);
aligned_vector_clear(&NORMALS);
/* FIXME: Pop pointers */

3
include/gl.h
View File

@ -636,9 +636,10 @@ GLAPI void APIENTRY glGetFloatv(GLenum pname, GLfloat *params);
GLAPI GLboolean APIENTRY glIsEnabled(GLenum cap);
GLAPI const GLbyte* APIENTRY glGetString(GLenum name);
/* Multi-Texture Extensions - Currently not supported in immediate mode */
/* Multitexture extensions */
GLAPI void APIENTRY glActiveTextureARB(GLenum texture);
GLAPI void APIENTRY glClientActiveTextureARB(GLenum texture);
GLAPI void APIENTRY glMultiTexCoord2fARB(GLenum target, GLfloat s, GLfloat t);
/* Error handling */
GLAPI GLenum APIENTRY glGetError(void);