void
_swrast_CopyConvolutionFilter1D(GLcontext *ctx, GLenum target,
GLenum internalFormat,
GLint x, GLint y, GLsizei width)
{
SWcontext *swrast = SWRAST_CONTEXT(ctx);
GLchan rgba[MAX_CONVOLUTION_WIDTH][4];
/* Select buffer to read from */
_swrast_use_read_buffer(ctx);
RENDER_START( swrast, ctx );
/* read the data from framebuffer */
_mesa_read_rgba_span( ctx, ctx->ReadBuffer, width, x, y,
(GLchan (*)[4]) rgba );
RENDER_FINISH( swrast, ctx );
/* Restore reading from draw buffer (the default) */
_swrast_use_draw_buffer(ctx);
/* store as convolution filter */
glConvolutionFilter1D(target, internalFormat, width,
GL_RGBA, CHAN_TYPE, rgba);
}
JNIEXPORT void JNICALL Java_org_lwjgl_opengl_ARBImaging_nglConvolutionFilter1DBO(JNIEnv *env, jclass clazz, jint target, jint internalformat, jint width, jint format, jint type, jlong image_buffer_offset, jlong function_pointer) {
const GLvoid *image_address = (const GLvoid *)(intptr_t)offsetToPointer(image_buffer_offset);
glConvolutionFilter1DPROC glConvolutionFilter1D = (glConvolutionFilter1DPROC)((intptr_t)function_pointer);
glConvolutionFilter1D(target, internalformat, width, format, type, image_address);
}
