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LibGL: Implement glGetTexLevelParameteriv

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This commit is contained in:
Jelle Raaijmakers 2021-12-24 14:55:14 +01:00 • committed by Andreas Kling
parent d83702cb92
commit dae63352a3
5 changed files with 29 additions and 0 deletions
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1
Userland/Libraries/LibGL/GL/gl.h
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@ -580,6 +580,7 @@ GLAPI void glBitmap(GLsizei width, GLsizei height, GLfloat xorig, GLfloat yorig,
GLAPI void glCopyTexImage2D(GLenum target, GLint level, GLenum internalformat, GLint x, GLint y, GLsizei width, GLsizei height, GLint border);
GLAPI void glRectf(GLfloat x1, GLfloat y1, GLfloat x2, GLfloat y2);
GLAPI void glRecti(GLint x1, GLint y1, GLint x2, GLint y2);
GLAPI void glGetTexLevelParameteriv(GLenum target, GLint level, GLenum pname, GLint* params);
#ifdef __cplusplus
}

1
Userland/Libraries/LibGL/GLContext.h
View file

@ -116,6 +116,7 @@ public:
virtual void gl_light_model(GLenum pname, GLfloat x, GLfloat y, GLfloat z, GLfloat w) = 0;
virtual void gl_bitmap(GLsizei width, GLsizei height, GLfloat xorig, GLfloat yorig, GLfloat xmove, GLfloat ymove, GLubyte const* bitmap) = 0;
virtual void gl_copy_tex_image_2d(GLenum target, GLint level, GLenum internalformat, GLint x, GLint y, GLsizei width, GLsizei height, GLint border) = 0;
virtual void gl_get_tex_parameter_integerv(GLenum target, GLint level, GLenum pname, GLint* params) = 0;
virtual void gl_rect(GLdouble x1, GLdouble y1, GLdouble x2, GLdouble y2) = 0;
virtual void present() = 0;

5
Userland/Libraries/LibGL/GLTexture.cpp
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@ -61,3 +61,8 @@ void glCopyTexImage2D(GLenum target, GLint level, GLenum internalformat, GLint x
{
g_gl_context->gl_copy_tex_image_2d(target, level, internalformat, x, y, width, height, border);
}
void glGetTexLevelParameteriv(GLenum target, GLint level, GLenum pname, GLint* params)
{
g_gl_context->gl_get_tex_parameter_integerv(target, level, pname, params);
}

21
Userland/Libraries/LibGL/SoftwareGLContext.cpp
View file

@ -2658,6 +2658,27 @@ void SoftwareGLContext::gl_copy_tex_image_2d(GLenum target, GLint level, GLenum
target, level, internalformat, x, y, width, height, border);
}
void SoftwareGLContext::gl_get_tex_parameter_integerv(GLenum target, GLint level, GLenum pname, GLint* params)
{
RETURN_WITH_ERROR_IF(m_in_draw_state, GL_INVALID_OPERATION);
// FIXME: support targets other than GL_TEXTURE_2D
RETURN_WITH_ERROR_IF(target != GL_TEXTURE_2D, GL_INVALID_ENUM);
// FIXME: support other parameter names
RETURN_WITH_ERROR_IF(pname < GL_TEXTURE_WIDTH || pname > GL_TEXTURE_HEIGHT, GL_INVALID_ENUM);
RETURN_WITH_ERROR_IF(level < 0 || level > Texture2D::LOG2_MAX_TEXTURE_SIZE, GL_INVALID_VALUE);
// FIXME: GL_INVALID_VALUE is generated if target is GL_TEXTURE_BUFFER and level is not zero
// FIXME: GL_INVALID_OPERATION is generated if GL_TEXTURE_COMPRESSED_IMAGE_SIZE is queried on texture images with an uncompressed internal format or on proxy targets
switch (pname) {
case GL_TEXTURE_HEIGHT:
*params = m_active_texture_unit->bound_texture_2d()->height_at_lod(level);
break;
case GL_TEXTURE_WIDTH:
*params = m_active_texture_unit->bound_texture_2d()->width_at_lod(level);
break;
}
}
void SoftwareGLContext::gl_rect(GLdouble x1, GLdouble y1, GLdouble x2, GLdouble y2)
{
APPEND_TO_CALL_LIST_AND_RETURN_IF_NEEDED(gl_rect, x1, y1, x2, y2);

1
Userland/Libraries/LibGL/SoftwareGLContext.h
View file

@ -129,6 +129,7 @@ public:
virtual void gl_light_model(GLenum pname, GLfloat x, GLfloat y, GLfloat z, GLfloat w) override;
virtual void gl_bitmap(GLsizei width, GLsizei height, GLfloat xorig, GLfloat yorig, GLfloat xmove, GLfloat ymove, GLubyte const* bitmap) override;
virtual void gl_copy_tex_image_2d(GLenum target, GLint level, GLenum internalformat, GLint x, GLint y, GLsizei width, GLsizei height, GLint border) override;
virtual void gl_get_tex_parameter_integerv(GLenum target, GLint level, GLenum pname, GLint* params) override;
virtual void gl_rect(GLdouble x1, GLdouble y1, GLdouble x2, GLdouble y2) override;
virtual void present() override;